CN107888805A - A kind of mobile phone camera is taken pictures tracks of device and method - Google Patents
A kind of mobile phone camera is taken pictures tracks of device and method Download PDFInfo
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- CN107888805A CN107888805A CN201610863681.3A CN201610863681A CN107888805A CN 107888805 A CN107888805 A CN 107888805A CN 201610863681 A CN201610863681 A CN 201610863681A CN 107888805 A CN107888805 A CN 107888805A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/62—Control of parameters via user interfaces
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/69—Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
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Abstract
Taken pictures tracks of device and method the invention provides a kind of mobile phone camera, the transmitted ray strong and weak signals are simultaneously converted into electric signal reconvert into the camera module of data image signal by the transmitted ray that the device includes receiving scenery；For receiving and handling the data image signal, generation shows the image procossing module of signal；For scenery to be included into the display module on mobile phone screen according to display signal；For the hand-held head module for the posture that the camera module is adjusted according to angle information, a photo is shot by mobile phone, realizes the space orientation to target, easy to carry, position fixing process is simple；Pass through simple numerical computations, it is determined that target is relative to the space angle of mobile phone camera, accurate positioning；By holding following function of the head realization to target, suitable for various complicated and unknown environment.
Description
Technical Field
The invention relates to the field of electronic technology application, in particular to a mobile phone camera photographing tracking device and a mobile phone camera photographing tracking method.
Background
Target location techniques are divided into two-dimensional and three-dimensional location techniques. In intelligent monitoring, with the increase of complexity of monitoring scenes, target tracking based on two-dimensional images cannot meet the requirement of reliable tracking. The most reliable feature in target matching tracking is its three-dimensional spatial coordinates. The three-dimensional reconstruction problem is a core problem in three-dimensional computer vision, and is called as the three-dimensional reconstruction problem for how to obtain the coordinates of the corresponding spatial point in the actual coordinate system from the image point in computer vision.
At present, the method for spatially positioning a target by using an image mainly includes: at least more than two camera devices shoot and image the target in different directions to realize space positioning; converting the target object into a cuboid model, and calculating three-dimensional coordinates of characteristic points of the target object through a relative depth algorithm; and carrying out matching training on the known reference characteristic points on the target plane and the projection of the reference characteristic points on the two-dimensional image to obtain the spatial position of the target.
In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:
at least more than two camera devices are needed, the carrying is inconvenient, the shooting and imaging of the target in different directions are needed, and the positioning process is complex; the target object is converted into a model and calculated, the processing process is complex, and the accuracy cannot be guaranteed; the method needs known reference characteristic points, is not suitable for complex and unknown environments, and has a small application range.
Disclosure of Invention
The invention provides a mobile phone camera photographing and tracking device and method aiming at the problems of inconvenience in carrying of equipment used for target tracking, complex calculation process, low accuracy and small application range.
The technical scheme provided by the invention for the technical problem is as follows:
the invention provides a mobile phone camera photographing tracking device, which comprises:
the camera module is embedded in the back of the mobile phone and used for receiving the transmission light of the scenery, converting the intensity signal of the transmission light into an electric signal and converting the electric signal into a digital image signal;
the image processing module is connected with the camera module and used for receiving and processing the digital image signal, generating a display signal, calculating according to the display signal to obtain a space angle of the scenery relative to the camera module, and generating and sending angle information to the control module;
the display module is connected with the image processing module and used for displaying the scenery on the screen of the mobile phone according to the display signal;
and the handheld cloud platform module is connected with the image processing module and used for adjusting the posture of the camera module according to the angle information.
According to above-mentioned device, the camera module includes:
the aperture module is used for controlling the exposure of the scenery, wherein the exposure refers to the intensity of incident light of the scenery;
the lens group module is connected with the aperture module and is used for controlling the imaging size of the scenery;
the photosensitive chip is connected with the lens group module and used for receiving the transmission light of the scenery and converting the intensity signal of the transmission light into an electric signal;
and the signal processing module is connected with the photosensitive chip and used for converting the electric signal into a digital image signal.
According to the above device, the image processing module comprises:
the setting module is connected with the signal processing module and used for receiving and setting the image storage size and the storage format according to the digital image signal;
the size conversion module is connected with the signal processing module and used for receiving and carrying out linear change on the digital image signal, generating a display signal and transmitting the display signal to the zooming module, the calculation module and the display module;
and the zooming module is connected with the size conversion module and used for repairing the resolution of the stretched focusing area according to the display signal and transmitting the repaired display signal to the display module when zooming is needed.
According to the above device, the image processing module further comprises:
the calculation module is connected with the size conversion module and used for calculating a space angle between the camera module and the scenery according to the display signal;
the adjusting module is connected with the calculating module and used for sending angle information to the control module according to the space angle between the camera module and the scenery;
the display signal is calculated by calculating the space angle of the scenery relative to the camera module through the position of the imaging point and respectively calculating the horizontal direction angle theta by adopting the following formulaWAnd a vertical direction angle thetaH：
Wherein,indicating scene point A is sensitiveProjection A of receiving point A 'and receiving point A' on chip on y axis2F denotes a distance between the photosensitive chip and the lens, m denotes a pixel distance in a horizontal direction of the photosensitive chip, ppi1The length occupied by each photosite on the photosite is shown, n represents the pixel distance in the horizontal direction of the mobile phone screen, and WsensorIndicating the pixel width, W, of the photosensitive chipscreenRepresenting the pixel width of the mobile phone screen;
showing the projection A of the receiving point A 'of the scene point A on the photosensitive chip and the receiving point A' on the x-axis1Distance between mHRepresenting the pixel distance, n, in the vertical direction of the photosensitive chipHRepresenting the pixel distance in the vertical direction of the cell phone screen.
According to the above device, the lens group module comprises at least one lens; and all lenses contained in the lens group module are equivalent to a convex lens, and the photosensitive chip receives the transmitted light of the scenery through the equivalent convex lens.
According to the device, the size conversion module generates the display signal, so that the function of previewing the scenery on the screen of the mobile phone is realized.
The invention also provides a method for tracking the photographing of the mobile phone camera, which comprises the following steps:
s1, receiving the transmitted light of the scenery, converting the intensity signal of the transmitted light into an electric signal and converting the electric signal into a digital image signal;
s2, receiving and processing the digital image signal to generate a display signal;
s3, displaying the scenery on the screen of the mobile phone according to the display signal;
s4, calculating according to the display signal to obtain the space angle of the scenery relative to the camera module, and generating and sending angle information to the control module;
and S5, adjusting the posture of the camera module according to the angle information.
According to the above method, the step S1 includes:
s11, controlling the exposure of the scenery, wherein the exposure refers to the intensity of incident light of the scenery;
s12, controlling the imaging size of the scene;
s13, receiving the transmitted light of the scenery according to the exposure and the imaging size of the scenery, and converting the intensity signal of the transmitted light into an electric signal;
and S14, converting the electric signal into a digital image signal.
According to the above method, the step S2 includes:
s21, receiving and setting an image storage size and a storage format according to the digital image signal;
s22, receiving and carrying out linear change on the digital image signal, generating a display signal and transmitting the display signal to the display module;
and S23, when zooming is needed, restoring the resolution of the stretched focusing area according to the display signal, and transmitting the restored display signal to the display module.
According to the above method, the step S4 includes:
s41, calculating a space angle between the camera module and the scenery according to the position of the imaging point in the display signal;
and S42, sending angle information to a control module according to the space angle between the camera module and the scenery.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
a photo is taken by one mobile phone, so that the space positioning of the target is realized, the carrying is convenient, and the positioning process is simple; the space angle of the target relative to the mobile phone camera is determined through simple numerical calculation, and the positioning is accurate; the target tracking function is realized through the handheld cloud deck, and the system is suitable for various complex and unknown environments.
Drawings
Fig. 1 is a schematic structural diagram of a mobile phone camera photographing tracking device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a mobile phone camera photographing tracking device according to a preferred embodiment of the present invention.
Fig. 3 is a diagram of a mobile phone camera imaging model of a mobile phone camera photographing tracking device according to an embodiment of the present invention.
Fig. 4 is a diagram of a mobile phone camera imaging view field of a mobile phone camera photographing tracking device according to an embodiment of the present invention.
Fig. 5 is a schematic spatial angle diagram of a scene of a mobile phone camera photographing tracking apparatus relative to a camera according to an embodiment of the present invention.
Fig. 6 is a flowchart of a method for tracking photographing of a camera of a mobile phone according to a second embodiment of the present invention.
Fig. 7 is a flowchart of a method for tracking photographing of a camera of a mobile phone according to a second embodiment of the present invention.
Fig. 8 is a linear transformation diagram between the imaging of the photosensitive chip and the image displayed on the screen of the mobile phone according to the method for tracking the camera of the mobile phone provided by the second embodiment of the present invention.
Fig. 9 is a schematic view of a digital zooming process of a mobile phone camera photographing tracking method according to a second embodiment of the present invention.
Detailed Description
In order to solve the problems of inconvenient carrying of equipment used for target tracking, complex calculation process, low accuracy and small application range, the invention aims to provide a method for photographing and tracking a mobile phone camera, which has the core idea that: the photographing tracking device for the mobile phone camera is provided, and the spatial angle of a target relative to the mobile phone camera is obtained by carrying out numerical calculation on digital image signals, so that the spatial position of the target is accurately positioned; the target tracking function is realized through the handheld cloud deck, and the system is suitable for various complex and unknown environments.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Example one
The embodiment of the invention provides a mobile phone camera photographing tracking device, and referring to fig. 1, the system comprises:
the camera module 10 is embedded in the back of the mobile phone and used for receiving the transmission light of the scenery, converting the intensity signal of the transmission light into an electric signal and converting the electric signal into a digital image signal;
the image processing module 20 is connected with the camera module 10 and used for receiving and processing the digital image signal, generating a display signal, calculating according to the display signal to obtain a space angle of the scenery relative to the camera module 10, and generating and sending angle information to the control module;
the display module 30 is connected with the image processing module 20 and is used for displaying the scenery on the mobile phone screen 60 according to the display signal;
and the handheld cloud platform module 40 is connected with the image processing module 20 and used for adjusting the posture of the camera module 10 according to the angle information.
Specifically, referring to fig. 2, the camera module 10 includes an aperture module 101, a lens group module 102, a photosensitive chip 103, and a signal processing module 104, wherein,
the aperture module 101 is used for controlling the exposure of the scenery, wherein the exposure refers to the intensity of incident light of the scenery;
the lens group module 102 is connected with the aperture module 101 and is used for controlling the imaging size of the scenery;
the photosensitive chip 103 is connected with the lens group module 102 and used for receiving the transmitted light of the scenery and converting the intensity signal of the transmitted light into an electric signal;
and the signal processing module 104 is connected with the photosensitive chip 103 and is used for converting the electric signal into a digital image signal.
Specifically, referring to fig. 2, the image processing module 20 includes a setting module 201, a size conversion module 202, a zooming module 203, a calculation module 204, and an adjustment module 205, wherein
A setting module 201 connected to the signal processing module 104 for receiving and setting the image storage size and storage format according to the digital image signal;
the size conversion module 202 is connected to the signal processing module 104, and is configured to receive and linearly change the digital image signal, generate a display signal, and transmit the display signal to the zoom module 203, the calculation module 204, and the display module 30;
a zooming module 203 connected to the size conversion module 202, configured to restore, according to the display signal, the resolution of the stretched focus area when zooming is required, and transmit the restored display signal to the display module 30;
the calculation module 204 is connected with the size conversion module 202 and used for calculating the space angle between the camera module 10 and the scenery according to the display signal;
and the adjusting module 205 is connected to the calculating module 204, and is configured to send angle information to the control module according to the spatial angle between the camera module 10 and the scene.
In this embodiment, the aperture module 101, the lens group module 102, the photosensitive chip 103 and the signal processing module 104 in the camera module 10 are all embedded in the back of the mobile phone according to the connection sequence; the setting module 201, the size conversion module 202, the zooming module 203, the calculation module 204 and the adjustment module 205 in the image processing module 20 are all arranged inside the mobile phone; the display module 30 is arranged inside the mobile phone; the signal processing module 104 in the camera module 10 is respectively connected with the setting module 201 and the size conversion module 202 in the image processing module 20 inside the mobile phone; the size conversion module 202 and the zooming module 203 in the image processing module 20 are respectively connected with the display module inside the mobile phone; the mobile phone is fixedly arranged on the handheld cloud deck 40, the handheld cloud deck 40 is connected with the adjusting module 205 through a data interface, and the mobile phone (including the camera module 10) is driven to rotate according to the angle information.
Specifically, referring to fig. 3, the lens group module 102 includes a plurality of lenses, and in the imaging modeling of the present embodiment, the plurality of lenses are equivalent to one convex lens; therefore, the imaging principle of the lens group module 102 is convex lens imaging, and one of the incident light of the scenery must be transmitted along a straight line through the optical center of the convex lens; the distance from the photosensitive chip 103 to the optical center of the convex lens is one focal length, the first convex lens 501, the second convex lens 502 and the third convex lens 503 are all the same convex lens, and the first photosensitive chip 1031 and the second photosensitive chip 1032 are photosensitive chips with the same size; the distance from the first photo-sensing chip 1031 to the optical center of the convex lens is a, and the first photo-sensing chip 1031 and the convex lens form a visual field range A; the second photosensitive chip 1032 is a distance B from the optical center of the convex lens, and the distance B forms a visual field range B; the distance from the third photosensitive chip 1033 to the optical center of the convex lens is b, and the third photosensitive chip and the convex lens form a visual field range C; the viewing range a is larger than the viewing range B, and the viewing range B is larger than the viewing range C, so that the size of the viewing range is determined by the size and the focal length of the photosensitive chip 103 in a certain direction.
Specifically, referring to fig. 4, the viewing range is spatially within a cone, and if the length of the photosensitive chip 103 in a certain direction is h and the focal length of the lens is f, the viewing angle in the direction is f
The commonly used viewing angles are viewing angles in the horizontal direction and the vertical direction, and are determined by the width and the height of the photosensitive chip 103, respectively, in the case of a constant focal length.
Specifically, referring to fig. 5, the spatial angle of the scene with respect to the camera module 10 is calculated from the position of the imaging point; wherein, Width is the Width of the photosensitive chip 103, height is the height of the photosensitive chip 103, xo ' z plane represents the horizontal plane of the actual space, yo ' z plane represents the vertical plane of the actual space, and OO ' is the lens direction; a represents an actual scene point, an incident light ray of A is incident on the photosensitive chip 103 through a convex lens optical center O, is received by the point A', and is finally converted into data of a pixel point on a photo through subsequent processing; the projection of the point A' on the x axis is A1Projection on the y-axis is A2From the symmetry relationship, the included angle between AO and the lens direction in the horizontal direction is equal to OA1angle with the vertical plane, i.e. OA-1(ii) a The included angle between AO and the lens direction in the vertical direction is equal to OA2angle with horizontal plane, i.e. OA-2(ii) a The angle of the scene relative to the lens in the horizontal direction (i.e. the position of the scene which determines how many angles are left or right of the lens) is
The angle of the scene relative to the lens in the vertical direction (i.e. the position at which it is determined how much angle the scene is above or below the lens) is
Through thetaWAnd thetaHThese two angles determine the spatial angle of the scene relative to the lens.
The embodiment of the invention takes a picture through one mobile phone, realizes the space positioning of the target, is convenient to carry and has simple positioning process; the space angle of the target relative to the mobile phone camera is determined through simple numerical calculation, and the positioning is accurate; the target tracking function is realized through the handheld cloud deck, and the system is suitable for various complex and unknown environments.
Example two
The invention provides a method for tracking photographing of a mobile phone camera, which is suitable for a mobile phone camera photographing tracking device shown in the first embodiment, and referring to fig. 6, the method comprises the following steps:
s1, receiving the transmitted light of the scenery, converting the intensity signal of the transmitted light into an electric signal and converting the electric signal into a digital image signal;
s2, receiving and processing the digital image signal to generate a display signal;
s3, displaying the scenery on the mobile phone screen 60 according to the display signal;
s4, calculating according to the display signal, and sending angle information to the control module according to the calculation result;
and S5, adjusting the posture of the camera module 10 according to the angle information.
Specifically, referring to fig. 7, step S1 includes:
s11, controlling the exposure of the scenery, wherein the exposure refers to the intensity of incident light of the scenery;
s12, controlling the imaging size of the scene;
s13, receiving the transmitted light of the scenery according to the exposure and the imaging size of the scenery, and converting the intensity signal of the transmitted light into an electric signal;
and S14, converting the electric signal into a digital image signal.
Specifically, referring to fig. 7, step S2 includes:
s21, receiving and setting an image storage size and a storage format according to the digital image signal;
s22, receiving and linearly changing the digital image signal, generating a display signal and transmitting the display signal to the display module 30;
specifically, referring to fig. 8, the display signal is displayed on the mobile phone screen 60, so as to implement the function of preview; however, when performing preview, the pixel size of the photosensitive chip 103 and the pixel size of the cell phone screen 60 are not consistent, and the aspect ratio of the two is also not consistent (the photosensitive chip 103 is generally 4:3, and the cell phone screen 60 is generally 16:9), so that the imaging of the photosensitive chip 103 needs to be linearly changed to adapt to the pixel size and aspect ratio of the cell phone screen 60.
In this embodiment, taking the vertical screen status of a glory 3C mobile phone as an example, the light sensing chip 103 is IMX134, the physical size is 1/4 inch, and the pixel arrangement is 3264 × 2449pixel2(eight million pixel rear camera), the single pixel photosensitive length is 1.12 microns (the length ppi occupied by each photosensitive point on the photosensitive chip 103)1＝1.12*10-3mm/pixel); the cell phone screen 60 has a physical size of 5 inches and the pixels are arranged as 720 x 1208 pixels2The code can read that the screen DPI is 320(DPI indicates resolution, that is, 320 pixels are displayed per inch of the screen, and then each pixel occupies the length ppi on the screen225.4/320 mm/pixel); the pixel distances of the photosensitive chip 103 and the mobile phone screen 60 in the height and width directions are proportional (for example, if the pixel distance n is measured in the width direction of the mobile phone screen 60, the physical distance is d, the corresponding pixel distance in the width direction of the photosensitive chip 103 is m, and the physical distance is d0, then m/2448-n/720, d 0/d-are satisfied (m × ppi)1)/(n*ppi2) Physical width of the photo chip/physical width of the mobile phone screen).
S23, when zooming is required, restoring the resolution of the stretched focus area according to the display signal, and transmitting the restored display signal to the display module 30;
specifically, referring to fig. 9, first as in fig. 701: selecting a focus area in the cell phone screen 60; then as in diagram 702: stretching the selected focusing area to four vertexes of the mobile phone screen 60; as shown in fig. 703: the resolution of the focus area after stretching change is reduced; finally, as shown in FIG. 704: through interpolation, the reduced resolution of the focus area is restored, and the state at that time is previewed on the mobile phone screen 60.
In this embodiment, in an Android development environment, a stretch variation system (i.e., a zoom factor) in the graph 702 may be obtained through a code, a pixel distance calculated in the graph 704 state is converted into a pixel distance in the graph 701 state, and then a direction angle is calculated.
Specifically, referring to fig. 7, the step S4 includes:
s41, calculating the angle between the camera module 10 and the scenery on the horizontal plane according to the display signal;
and S42, sending angle information to the control module according to the angle between the camera module 10 and the scenery.
In this embodiment, Wsensor(pixel width of photosensitive chip 103), WscreenThe (pixel width of the mobile phone screen 60) and the DPI can be obtained through DisplayMetrics class (display metrics) in an Android development environment, and the pixel distance n of the imaging point on the mobile phone screen 60 in the width direction relative to the lens can be obtained through simple calculation, so that the pixel distance m of the imaging point on the photosensitive chip 103 in the width direction can be obtained as n (W is the pixel distance m in the width direction of the imaging point on the photosensitive chip 103)sensor/Wscreen) (ii) a The horizontal direction angle of the scenery relative to the lens is obtained from the formula (2) through the pixel position of the imaging point on the mobile phone screen 60
In the same way, the vertical direction angle can be obtained as
In the formulas (4) and (5)Showing the projection A of the receiving point A 'of the scene point A on the photosensitive chip 103 and the receiving point A' on the y-axis2The distance between them; f denotes a distance (i.e., focal length) between the photosensitive chip 103 and the lens; ppi1The value of (A) cannot be directly read from the mobile phone hardware information through the code. Referring to table 1, the maximum resolution supported by the camera can be read through the code, and the resolution level of the camera is determined, and the mainstream configuration of the existing camera is as follows: 800 ten thousand pixel camera, ppi11.12 μm/pixel; 1300 ten thousand pixel camera, ppi1＝1.4μm/pixel。
TABLE 1 Huacheng series of cell phone camera parameters
| Model number | Single pixel size/mum | Maximum resolution of lens | Resolution level |
| 4X | 1.4 | 4208*3120 | Rear 1300 ten thousand pixels |
| 4C | 1.4 | 4160*3120 | Rear 1300 ten thousand pixels |
| 5X | 1.4 | 4160*3120 | Rear 1300 ten thousand pixels |
| 6 | 1.4 | 4160*3120 | Rear 1300 ten thousand pixels |
| 6Plus | 1.98 | 4160*3120 | Double post 800 ten thousand pixels |
In this embodiment, when the mobile phone is controlled to take a picture by the handheld cradle head, the angle between the mobile phone and the scenery is only required to be adjusted on the horizontal plane, so that the mobile phone passes through the angle theta in the vertical screen stateWAdjustment, passing through angle theta in mobile phone transverse screen state (common state)HAnd (6) adjusting.
Specifically, referring to fig. 5, taking glory 3C as an example, when the mobile phone is in the portrait screen state, it is measured that in the display signal, the physical width of a point of an image point on the screen relative to the lens is d equal to 10mm, and then the pixel distance n is d/ppi equal to d/ppi2According to the formula (4)
Then, the angle information is sent to the control module of the handheld cloud deck 40 through the adjusting module 205, the control device built in the handheld cloud deck 40 calculates the adjustment amount according to the angle information, and sends an adjusting instruction to control the handheld cloud deck 40 to drive the mobile phone to rotate clockwise by 7.57 degrees on the horizontal plane, so that the lens is aligned with the target scenery, and the shooting tracking of the mobile phone camera is completed;
similarly, when the mobile phone is in the horizontal screen state, the physical width d of a point of an imaging point on the screen relative to the lens is 10mm, and then the pixel distance n is measured in the display signalH＝dH/ppi2According to the formula (5)
Then, the angle information is sent to the control module of the handheld cradle head 40 through the adjusting module 205, the control device built in the handheld cradle head 40 calculates the adjustment amount according to the angle information, and sends an adjusting instruction to control the handheld cradle head 40 to drive the mobile phone to rotate clockwise by 7.57 degrees on the horizontal plane, so that the lens is aligned with the target scenery, and the shooting tracking of the mobile phone camera is completed.
The embodiment of the invention takes a picture through one mobile phone, realizes the space positioning of the target, is convenient to carry and has simple positioning process; the space angle of the target relative to the mobile phone camera is determined through simple numerical calculation, and the positioning is accurate; the target tracking function is realized through the handheld cloud deck, and the system is suitable for various complex and unknown environments.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
It should be noted that: when the mobile phone camera photographing tracking device provided by the embodiment implements the mobile phone camera photographing tracking method, only the division of the functional modules is taken as an example, in practical application, the function distribution can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the mobile phone camera photographing tracking device provided by the above embodiment and the mobile phone camera photographing tracking method embodiment belong to the same concept, and the specific implementation process thereof is detailed in the method embodiment and is not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a cell-phone camera tracking means that shoots which characterized in that, the device includes:
the camera module is embedded in the back of the mobile phone and used for receiving the transmission light of the scenery, converting the intensity signal of the transmission light into an electric signal and converting the electric signal into a digital image signal;
the image processing module is connected with the camera module and used for receiving and processing the digital image signal, generating a display signal, calculating according to the display signal to obtain a space angle of the scenery relative to the camera module, and generating and sending angle information to the control module;
the display module is connected with the image processing module and used for displaying the scenery on the screen of the mobile phone according to the display signal;
and the handheld cloud platform module is internally provided with a control module, is connected with the image processing module and is used for adjusting the posture of the camera module according to the angle information.
2. The apparatus of claim 1, wherein the camera module comprises:
the aperture module is used for controlling the exposure of the scenery, wherein the exposure refers to the intensity of incident light of the scenery;
the lens group module is connected with the aperture module and is used for controlling the imaging size of the scenery;
the photosensitive chip is connected with the lens group module and used for receiving the transmission light of the scenery and converting the intensity signal of the transmission light into an electric signal;
and the signal processing module is connected with the photosensitive chip and used for converting the electric signal into a digital image signal.
3. The apparatus of claim 1, wherein the image processing module comprises:
the setting module is connected with the signal processing module and used for receiving and setting the image storage size and the storage format according to the digital image signal;
the size conversion module is connected with the signal processing module and used for receiving and carrying out linear change on the digital image signal, generating a display signal and transmitting the display signal to the zooming module, the calculation module and the display module;
and the zooming module is connected with the size conversion module and used for repairing the resolution of the stretched focusing area according to the display signal and transmitting the repaired display signal to the display module when zooming is needed.
4. The apparatus of claim 3, wherein the image processing module further comprises:
the calculation module is connected with the size conversion module and used for calculating a space angle between the camera module and the scenery according to the display signal;
the adjusting module is connected with the calculating module and used for sending angle information to the control module according to the space angle between the camera module and the scenery;
the display signal is calculated by calculating the space angle of the scenery relative to the camera module through the position of the imaging point and respectively calculating the horizontal direction angle theta by adopting the following formulaWAnd a vertical direction angle thetaH：
<mrow> <msub> <mi>&theta;</mi> <mi>W</mi> </msub> <mo>=</mo> <mi>arctan</mi> <mfrac> <msub> <mi>l</mi> <mrow> <msup> <mi>A</mi> <mo>&prime;</mo> </msup> <msub> <mi>A</mi> <mn>2</mn> </msub> </mrow> </msub> <mi>f</mi> </mfrac> <mo>=</mo> <mi>arctan</mi> <mfrac> <mrow> <mi>m</mi> <mo>*</mo> <msub> <mi>ppi</mi> <mn>1</mn> </msub> </mrow> <mi>f</mi> </mfrac> <mo>=</mo> <mi>arctan</mi> <mfrac> <mrow> <mi>n</mi> <mo>*</mo> <msub> <mi>ppi</mi> <mn>1</mn> </msub> </mrow> <mi>f</mi> </mfrac> <mo>*</mo> <mfrac> <msub> <mi>W</mi> <mrow> <mi>s</mi> <mi>e</mi> <mi>n</mi> <mi>s</mi> <mi>o</mi> <mi>r</mi> </mrow> </msub> <msub> <mi>W</mi> <mrow> <mi>s</mi> <mi>c</mi> <mi>r</mi> <mi>e</mi> <mi>e</mi> <mi>n</mi> </mrow> </msub> </mfrac> </mrow>
<mrow> <msub> <mi>&theta;</mi> <mi>H</mi> </msub> <mo>=</mo> <mi>arctan</mi> <mfrac> <msub> <mi>l</mi> <mrow> <msup> <mi>A</mi> <mo>&prime;</mo> </msup> <msub> <mi>A</mi> <mn>1</mn> </msub> </mrow> </msub> <mi>f</mi> </mfrac> <mo>=</mo> <mi>arctan</mi> <mfrac> <mrow> <msub> <mi>m</mi> <mi>H</mi> </msub> <mo>*</mo> <msub> <mi>ppi</mi> <mn>1</mn> </msub> </mrow> <mi>f</mi> </mfrac> <mo>=</mo> <mi>arctan</mi> <mfrac> <mrow> <msub> <mi>n</mi> <mi>H</mi> </msub> <mo>*</mo> <msub> <mi>ppi</mi> <mn>1</mn> </msub> </mrow> <mi>f</mi> </mfrac> <mo>*</mo> <mfrac> <msub> <mi>W</mi> <mrow> <mi>s</mi> <mi>e</mi> <mi>n</mi> <mi>s</mi> <mi>o</mi> <mi>r</mi> </mrow> </msub> <msub> <mi>W</mi> <mrow> <mi>s</mi> <mi>c</mi> <mi>r</mi> <mi>e</mi> <mi>e</mi> <mi>n</mi> </mrow> </msub> </mfrac> </mrow>
Wherein,showing the projection A of the receiving point A 'of the scene point A on the photosensitive chip and the receiving point A' on the y axis2F denotes a distance between the photosensitive chip and the lens, m denotes a pixel distance in a horizontal direction of the photosensitive chip, ppi1The length occupied by each photosensitive point on the photosensitive chip is shown, n represents the image of the mobile phone screen in the horizontal directionDistance of element, WsensorIndicating the pixel width, W, of the photosensitive chipscreenRepresenting the pixel width of the mobile phone screen;
showing the projection A of the receiving point A 'of the scene point A on the photosensitive chip and the receiving point A' on the x-axis1Distance between mHRepresenting the pixel distance, n, in the vertical direction of the photosensitive chipHRepresenting the pixel distance in the vertical direction of the cell phone screen.
5. The apparatus of claim 2, wherein the lens stack module comprises at least one lens; and all lenses contained in the lens group module are equivalent to a convex lens, and the photosensitive chip receives the transmitted light of the scenery through the equivalent convex lens.
6. The apparatus of claim 4, wherein the size conversion module implements a function of previewing the scene on a mobile phone screen by generating a display signal.
7. A method for tracking photographing of a camera of a mobile phone is characterized by comprising the following steps:
s1, receiving the transmitted light of the scenery, converting the intensity signal of the transmitted light into an electric signal and converting the electric signal into a digital image signal;
s2, receiving and processing the digital image signal to generate a display signal;
s3, displaying the scenery on the screen of the mobile phone according to the display signal;
s4, calculating according to the display signal to obtain the space angle of the scenery relative to the camera module, and generating and sending angle information to the control module;
and S5, adjusting the posture of the camera module according to the angle information.
8. The method according to claim 7, wherein the step S1 includes:
s11, controlling the exposure of the scenery, wherein the exposure refers to the intensity of incident light of the scenery;
s12, controlling the imaging size of the scene;
s13, receiving the transmitted light of the scenery according to the exposure and the imaging size of the scenery, and converting the intensity signal of the transmitted light into an electric signal;
and S14, converting the electric signal into a digital image signal.
9. The method according to claim 7, wherein the step S2 includes:
s21, receiving and setting an image storage size and a storage format according to the digital image signal;
s22, receiving and carrying out linear change on the digital image signal, generating a display signal and transmitting the display signal to the display module;
and S23, when zooming is needed, restoring the resolution of the stretched focusing area according to the display signal, and transmitting the restored display signal to the display module.
10. The method according to claim 7, wherein the step S4 includes:
s41, calculating a space angle between the camera module and the scenery according to the position of the imaging point in the display signal;
and S42, sending angle information to a control module according to the space angle between the camera module and the scenery.
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