CN110442266B - Object recognition method, object recognition device, electronic equipment and storage medium - Google Patents
Object recognition method, object recognition device, electronic equipment and storage medium Download PDFInfo
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- CN110442266B CN110442266B CN201910709126.9A CN201910709126A CN110442266B CN 110442266 B CN110442266 B CN 110442266B CN 201910709126 A CN201910709126 A CN 201910709126A CN 110442266 B CN110442266 B CN 110442266B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- Position Input By Displaying (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The invention discloses an object identification method, an object identification device, electronic equipment and a storage medium, and relates to the computer technology, wherein the method comprises the steps of obtaining touch information applied to a touch sensing device by an object, wherein the touch information comprises 3 touch points and coordinate information corresponding to the touch points; calculating angle information of a triangle formed by the 3 touch points by utilizing the coordinate information; and comparing whether the angle information is consistent with the preset characteristic information of the characteristic library, and judging whether the object belongs to the characteristic object corresponding to the characteristic information. Only 3 touch points are needed to be identified, the identification quantity is small, the identification speed is improved to a certain degree, the angle information of the formed triangle is calculated through the coordinate information of the 3 touch points, whether the angle information is consistent with the pre-stored characteristic information or not is compared, if the angle information is consistent with the pre-stored characteristic information, the object to be identified is the characteristic object corresponding to the characteristic information, the number of the touch points identified in the whole process is small, the data operation amount is small, and the identification speed is high.
Description
Technical Field
The present invention relates to computer technology, and more particularly, to an object recognition method, apparatus, electronic device, and storage medium.
Background
The touch screen is a common information interaction device in the field of electronic devices due to the characteristics of simplicity and convenience. In the field of exhibition and game, a touch screen is often used to identify a specific object module for simple information interaction.
The existing touch screen object identification technology comprises a multi-point touch capacitive screen, a host, a customized identification module with a capacitor and an identification software program, wherein the customized identification module has shape characteristics and is used for applying touch information corresponding to the shape characteristics to the multi-point touch capacitive screen, and the host runs the identification software program to acquire and calculate the touch information so as to identify and identify the customized identification module.
However, the conventional recognition method requires recognition of a large number of touch points and a large amount of data calculation, and thus greatly affects the recognition speed of an object.
Disclosure of Invention
In view of the defects in the prior art, a first object of the present invention is to provide an object recognition method, which has the advantage of fast recognition speed.
In order to realize the purpose, the invention provides the following technical scheme:
an object recognition method comprises
Acquiring touch information applied to a touch sensing device by an object, wherein the touch information comprises 3 touch points and coordinate information corresponding to the touch points;
calculating angle information of a triangle formed by the 3 touch points by using the coordinate information;
and comparing whether the angle information is consistent with the preset characteristic information of the characteristic library, and judging whether the object belongs to the characteristic object corresponding to the characteristic information.
By adopting the technical scheme, the touch information of the object is acquired through the touch sensing device, only 3 touch points need to be identified, the identification quantity is reduced, on the other hand, the processing quantity of coordinate information is reduced, the identification speed is increased to a certain extent, the angle information of the formed triangle is calculated through the coordinate information of the 3 touch points, if the 3 touch points are determined, the triangle is uniquely determined, the angle of the triangle is also uniquely determined, whether the angle information is consistent with the prestored characteristic information is compared, if the angle information is consistent with the prestored characteristic information, the object to be identified is the characteristic object corresponding to the characteristic information, the identification quantity of the touch points in the whole process is small, the data operation quantity is small, and the identification speed is high.
Further, after the touch points are acquired, searching for other touch points in the set range of the acquired touch points until all touch points are identified.
By adopting the technical scheme, other touch points are searched in the set range of the touch points, the range of simultaneous recognition is reduced, and the speed of recognizing the touch points is further accelerated.
Further, the characteristic information is an angle section obtained by performing identification error correction on a reference angle, and if the angle information belongs to a preset angle section, the angle information is consistent with the characteristic information.
By adopting the technical scheme, the angle information is compared with the angle interval to judge whether the angle information is consistent with the characteristic information or not, and the influence caused by touch errors is reduced.
Further, before the touch information is acquired, the characteristic information matched with the identification requirement and the set range value are loaded according to the identification requirement.
By adopting the technical scheme, before touch recognition, the characteristic information for recognizing the object and the set range value for determining the recognition range are determined, and the specific recognition is realized, so that the recognition is more accurate, and the recognition speed is increased.
In view of the defects in the prior art, a second object of the present invention is to provide an object recognition device having the advantage of high recognition speed.
In order to achieve the purpose, the invention provides the following technical scheme:
an object recognition device comprises
The touch control device comprises an acquisition module, a processing module and a display module, wherein the acquisition module is used for acquiring touch information applied to the touch sensing device by an object, and the touch information comprises 3 touch points and coordinate information corresponding to the touch points;
the calculation module is used for calculating the angle information of a triangle formed by the 3 touch points by utilizing the coordinate information;
and the judging module is used for comparing whether the angle information is consistent with the preset characteristic information of the characteristic library and judging whether the object belongs to the characteristic object corresponding to the characteristic information.
By adopting the technical scheme, the touch information detected by the touch sensing device is acquired through the acquisition module, only 3 touch points need to be identified, the identification quantity is reduced, on the other hand, the processing amount of coordinate information is reduced, the identification speed is increased to a certain extent, the angle information of a triangle formed by the calculation module is calculated by utilizing the coordinate information of the 3 touch points, if the 3 touch points are determined, the triangle is uniquely determined, the angle of the triangle is also uniquely determined, whether the angle information is consistent with the prestored characteristic information is compared, if the angle information is consistent with the prestored characteristic information, the judgment module judges that an object to be identified is a characteristic object corresponding to the characteristic information, the identification is completed, the number of the touch points identified in the whole process is small, the data operation amount is small, and the identification speed is high.
In view of the defects in the prior art, a third object of the present invention is to provide an electronic device, which is connected to a touch screen to identify an object and has an advantage of high identification speed.
In order to achieve the purpose, the invention provides the following technical scheme:
an electronic device comprising a memory and a processor, the memory storing a set of instructions for the processor to call to implement the functions of:
acquiring touch information applied to a touch sensing device by an object, wherein the touch information comprises 3 touch points and coordinate information corresponding to the touch points;
calculating angle information of a triangle formed by the 3 touch points by using the coordinate information;
and comparing whether the angle information is consistent with the preset characteristic information of the characteristic library, and judging whether the object belongs to the characteristic object corresponding to the characteristic information.
By adopting the technical scheme, the touch information of the object is acquired through the touch sensing device, only 3 touch points need to be identified, the identification quantity is reduced, on the other hand, the processing quantity of coordinate information is reduced, the identification speed is increased to a certain extent, the angle information of the formed triangle is calculated through the coordinate information of the 3 touch points, if the 3 touch points are determined, the triangle is uniquely determined, the angle of the triangle is also uniquely determined, whether the angle information is consistent with the prestored characteristic information is compared, if the angle information is consistent with the prestored characteristic information, the object to be identified is the characteristic object corresponding to the characteristic information, the identification quantity of the touch points in the whole process is small, the data operation quantity is small, and the identification speed is high.
Further, the instruction set is also called by the processor to implement the following functions:
after the touch points are acquired, searching for other touch points in the set range of the acquired touch points until all touch points are identified.
By adopting the technical scheme, other touch points are searched in the set range of the touch points, the range of simultaneous recognition is reduced, and the speed of recognizing the touch points is further accelerated.
Further, the instruction set is also called by the processor to implement the following functions:
comparing whether the angle information is consistent with the characteristic information comprises comparing whether the angle information belongs to a preset angle interval, and if the angle information belongs to the preset angle interval, the angle information is consistent with the characteristic information.
By adopting the technical scheme, the angle information is compared with the angle interval to judge whether the angle information is consistent with the characteristic information or not, and the influence caused by touch errors is reduced.
Further, the instruction set is also called by the processor to implement the following functions:
before acquiring the touch information, loading characteristic information matched with the identification requirement and setting a range value according to the identification requirement.
By adopting the technical scheme, before touch recognition, the characteristic information for recognizing the object and the set range value for determining the recognition range are determined, and the specific recognition is realized, so that the recognition is more accurate, and the recognition speed is increased.
In view of the shortcomings of the prior art, a fourth object of the present invention is to provide a storage medium with the advantage of fast recognition speed.
In order to achieve the purpose, the invention provides the following technical scheme:
a storage medium storing a computer program for execution by a computer to implement the object identification method according to any one of the above claims.
By adopting the technical scheme, the number of the identification touch points is reduced, the identification mode is optimized, the calculation amount of the coordinate information is less, and the identification speed is high.
In conclusion, the invention has the following beneficial effects:
1. the touch information of the object is acquired through the touch sensing device, only 3 touch points need to be recognized, the recognition quantity of the touch points is small, and the recognition speed is high;
2. searching other touch points in the set range of the touch points, reducing the range of simultaneous recognition and further accelerating the speed of recognizing the touch points;
3. calculating angle information of a formed triangle through coordinate information of 3 touch points, comparing whether the angle information is consistent with pre-stored characteristic information or not, if so, determining that the object to be identified is the characteristic object corresponding to the characteristic information, wherein the data calculation amount in the whole process is small, and the identification speed of the object is improved;
4. and comparing the angle information with the angle interval to judge whether the angle information is consistent with the characteristic information or not, so that the influence caused by touch errors is reduced.
Drawings
FIG. 1 is a schematic flow chart of an object recognition method according to the present invention;
FIG. 2 is a schematic diagram of an object recognition apparatus according to the present invention;
fig. 3 is a schematic diagram of an electronic device according to the present invention.
In the figure: 1. an acquisition module; 2. a calculation module; 3. a judgment module; 4. a processor; 5. a memory; 6. a communication interface; 7. a communication bus.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
An object appearing in the present invention refers to a type of customized identification module having identity characteristics, and when a touch sensing device is pressed, touch information corresponding to the identity characteristics is applied to the touch sensing device, which can be used to identify the identity of the object, such as a raised panel having a customized number of protrusions at a specific location, or a conductive material having a specific capacitance. The touch sensing device presented in the present invention refers to a kind of electronic device that can convert the identity characteristics of the customized identification module into corresponding electrical signals, such as a resistive touch screen for identifying a raised panel or a capacitive touch screen for identifying a capacitive conductive material.
Example 1
An object recognition method, referring to fig. 1, includes steps S101 to S104.
Step S101: and acquiring touch information applied to the touch sensing device by the object, wherein the touch information comprises 3 touch points and coordinate information corresponding to the touch points.
In this embodiment, the object uses customization identification module X as the indication, and customization identification module X has the electric capacity of customization size, and it comprises electrically conductive PLA material and insulating PLA material, after the STL model is designed, prints through 3D and makes. The main body of the customized identification module X adopts conductive PLA, and the external part is additionally provided with insulating PLA, so that the false triggering can be effectively reduced, and the identification precision is improved.
Step S101, touch information applied by the customized identification module X is obtained through the multi-point touch capacitive screen, wherein the touch information comprises 3 touch points and coordinate information corresponding to each touch point.
As a specific example of touch information, the touch information brought by the customized identification module X pressing against the multi-touch capacitive screen is: touch point a, touch point B, touch point C, coordinate information a (0, 0), B (1, 0), C (0, 1).
Step S102: and calculating the angle information of a triangle formed by the 3 touch points by using the coordinate information of the 3 touch points.
After the touch point A, the touch point B and the touch point C are obtained, the three touch points form a determined triangle ABC, the sizes of all the angles of the triangle ABC can be calculated through the coordinate information of the three vertexes of the triangle ABC, and the sizes of the three angles of the triangle ABC are the angle information.
Corresponding to the specific example of the touch information described above, the sizes of the angles a, B, C are calculated to be (90, 45), respectively.
Step S103: and comparing whether the angle information is consistent with the preset characteristic information of the characteristic library, and judging whether the object belongs to the characteristic object corresponding to the characteristic information.
The feature library stores a type of feature information for identifying the identity of the customized identification module, and the feature information refers to the size information of a group of internal angles of a triangle.
As a specific characteristic information example, the characteristic information of a certain object P stored in the characteristic library is (90, 45), and corresponding to the specific parameter example described above, it is obvious that the angle information after the customized identification module X is identified and calculated is consistent with the characteristic information of the certain object P, and then the customized identification module X finally determines as the certain object P by the object identification method provided by the present invention.
The object recognition method of the present invention further includes:
after the touch points are acquired, searching for other touch points in the set range of the acquired touch points until all touch points are identified.
Comparing whether the angle information is consistent with the feature information comprises: and comparing whether the angle information belongs to a preset angle interval or not, wherein if the angle information belongs to the preset angle interval, the angle information is consistent with the characteristic information.
Before acquiring the touch information, loading characteristic information matched with the identification requirement and setting a range value according to the identification requirement.
Example 2
An object recognition apparatus, referring to FIG. 2, includes
The touch control system comprises an acquisition module 1, a processing module and a display module, wherein the acquisition module is used for acquiring touch information applied to a touch sensing device by an object, and the touch information comprises 3 touch points and coordinate information corresponding to the touch points;
the calculation module 2 is used for calculating the angle information of a triangle formed by the 3 touch points by utilizing the coordinate information;
and the judging module 3 is used for comparing whether the angle information is consistent with the preset characteristic information of the characteristic library or not and judging whether the object belongs to the characteristic object corresponding to the characteristic information or not.
Example 3
An electronic device, see fig. 3, comprises at least one processor 4, for example a CPU (Central Processing Unit), at least one communication interface 6, a memory 5, at least one communication bus 7. Wherein a communication bus 7 is used to enable the connection communication between these components. The communication interface 6 may include a Display screen (Display) and a Keyboard (Keyboard), and the optional communication interface 6 may also include a standard wired interface and a standard wireless interface. The Memory 5 may be a high-speed RAM Memory (volatile Random Access Memory) or a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The memory 5 may alternatively be at least one memory device located remotely from the processor 4. Wherein the memory 5 stores therein a set of instructions and the processor 4 invokes the set of instructions stored in the memory 5 for performing the following operations:
the method comprises the steps of obtaining touch information applied to a touch sensing device by an object, wherein the touch information comprises 3 touch points and coordinate information corresponding to the touch points.
And calculating angle information of a triangle formed by the 3 touch points by using the coordinate information.
And comparing whether the angle information is consistent with the preset characteristic information of the characteristic library, and judging whether the object belongs to the characteristic object corresponding to the characteristic information.
After the touch points are identified, searching other touch points in the set range of the acquired touch points until all touch points are identified.
Comparing whether the angle information is consistent with the characteristic information comprises comparing whether the angle information belongs to a preset angle interval, and if the angle information belongs to the preset angle interval, the angle information is consistent with the characteristic information.
Before acquiring the touch information, loading characteristic information matched with the identification requirement and setting a range value according to the identification requirement.
Example 4
A storage medium storing a computer program for computer execution to implement the object identification method provided in embodiment 1.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (6)
1. An object recognition method, characterized by: comprises that
Acquiring touch information applied to a touch sensing device by an object, wherein the touch information comprises 3 touch points and coordinate information corresponding to the touch points;
calculating angle information of a triangle formed by the 3 touch points by using the coordinate information;
comparing whether the angle information is consistent with the characteristic information preset in a characteristic library, and judging whether the object belongs to a characteristic object corresponding to the characteristic information;
after the touch points are acquired, searching other touch points in the set range of the acquired touch points until all touch points are identified;
the comparing whether the angle information is consistent with the feature information includes: comparing whether the angle information belongs to a preset angle interval or not, wherein if the angle information belongs to the preset angle interval, the angle information is consistent with the characteristic information;
the object is a customized identification module, the customized identification module is provided with a capacitor with a customized size, the main body of the customized identification module is PLA, insulation PLA is added to the outside of the customized identification module, and the customized identification module is manufactured through 3D printing;
the characteristic information is an angle section of the reference angle after identification error correction.
2. The object recognition method according to claim 1, characterized in that: before acquiring the touch information, loading characteristic information matched with the identification requirement and setting a range value according to the identification requirement.
3. An object recognition device, characterized by: comprises that
The touch control device comprises an acquisition module (1) and a control module, wherein the acquisition module is used for acquiring touch information applied to the touch sensing device by an object, and the touch information comprises 3 touch points and coordinate information corresponding to the touch points;
the calculation module (2) is used for calculating the angle information of a triangle formed by the 3 touch points by utilizing the coordinate information;
the judging module (3) is used for comparing whether the angle information is consistent with the characteristic information preset in the characteristic library or not and judging whether the object belongs to the characteristic object corresponding to the characteristic information or not;
the acquisition module (1) is further used for searching other touch points in the set range of the acquired touch points after the touch points are acquired until all the touch points are identified;
the comparing whether the angle information is consistent with the feature information includes: comparing whether the angle information belongs to a preset angle interval or not, wherein if the angle information belongs to the preset angle interval, the angle information is consistent with the characteristic information;
the object is a customized identification module, the customized identification module is provided with a capacitor with a customized size, the main body of the customized identification module is PLA, an insulation PLA is added to the outside, and the customized identification module is manufactured through 3D printing;
the characteristic information is an angle section of the reference angle after identification error correction.
4. An electronic device, characterized in that: the system comprises a memory (5) and a processor (4), wherein the memory (5) stores an instruction set for the processor (4) to call so as to realize the following functions:
acquiring touch information applied to a touch sensing device by an object, wherein the touch information comprises 3 touch points and coordinate information corresponding to the touch points;
calculating angle information of a triangle formed by the 3 touch points by using the coordinate information;
comparing whether the angle information is consistent with the characteristic information preset in a characteristic library, and judging whether the object belongs to a characteristic object corresponding to the characteristic information;
the instruction set is also called by the processor (4) to implement the following functions:
after the touch points are acquired, searching other touch points in the set range of the acquired touch points until all touch points are identified;
the comparing whether the angle information is consistent with the feature information includes: comparing whether the angle information belongs to a preset angle interval or not, wherein if the angle information belongs to the preset angle interval, the angle information is consistent with the characteristic information;
the object is a customized identification module, the customized identification module is provided with a capacitor with a customized size, the main body of the customized identification module is PLA, an insulation PLA is added to the outside, and the customized identification module is manufactured through 3D printing;
the characteristic information is an angle section of the reference angle after identification error correction.
5. The electronic device of claim 4, wherein: the instruction set is also called by the processor (4) to implement the following functions:
before acquiring the touch information, loading characteristic information matched with the identification requirement and setting a range value according to the identification requirement.
6. A storage medium, characterized by: a computer program is stored for computer execution to implement the object identification method according to any one of claims 1 to 2.
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| CN111666033A (en) * | 2020-06-22 | 2020-09-15 | 重庆汉沙科技有限公司 | Touch screen object recognition system |
| CN112558700B (en) * | 2020-12-23 | 2024-05-14 | 苏州金螳螂文化发展股份有限公司 | Multi-touch-based exhibition hall touch screen object identification method |
| CN114296621B (en) * | 2021-12-23 | 2023-06-09 | 天翼视讯传媒有限公司 | Three-point touch recognition calculation method for touch screen |
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| CN108804016B (en) * | 2018-06-29 | 2020-12-29 | 江苏特思达电子科技股份有限公司 | Object identification method and device based on touch screen and electronic equipment |
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