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CN101902608B - Adaptive conversion and display device of non-standard digital videos - Google Patents

Adaptive conversion and display device of non-standard digital videos Download PDF

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Publication number
CN101902608B
CN101902608B CN2009100671912A CN200910067191A CN101902608B CN 101902608 B CN101902608 B CN 101902608B CN 2009100671912 A CN2009100671912 A CN 2009100671912A CN 200910067191 A CN200910067191 A CN 200910067191A CN 101902608 B CN101902608 B CN 101902608B
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China
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unit
imaq
graphics processing
processing unit
module
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CN2009100671912A
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CN101902608A (en
Inventor
刘智
潘静
王勇
刘丹
陈宏升
姜会林
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Changchun University of Science and Technology
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Changchun University of Science and Technology
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Abstract

The invention relates to an adaptive conversion and display device of non-standard digital videos, which comprises a video data level converting unit (1), an image acquiring and processing unit (2), a central processing unit (3), a data memory unit (4), a program memory unit (5) and a video display unit (6). The display device can realize the purposes of detecting, recognizing and displaying the parameters of a camera of which the resolution is 300000-10000000 pixels and the frame frequency is 30-1000fps. The processing and display of the image of the camera are realized in a system without an additional display device; the parameters of most of the current cameras with Camera Link interfaces can be recognized; and the cost of the device of the invention is only 1/5 of the cost of the existing device.

Description

A kind of being used for to conversion of non-standard digital videos self adaptation and device shown
Technical field
The present invention relates to a kind of being used for to non-standard digital videos self adaptation conversion and device shown, belong to that video image is handled and the demonstration field in the real-time Display Technique of the self adaptation non-standard digital videos field based on Camera Link camera.
Background technology
The high speed, high resolution digital camera is widely applied to every field.This kind camera major part all is equipped with Camera Link data-interface, and image need use equipment such as special image capture card, PC to realize when showing through Camera Link interface, inconvenient low-cost operation.And Camera Link also has the transmission range restriction.So can't realize the simple and easy real-time demonstration of camera image under a lot of occasions.Therefore; Must make high-performance digital camera video not adjust the simple and easy display device that shows in real time to unknown parameter camera image self adaptation at one through accomplishing under the situation of traditional images display mode; Reach under special circumstances the purpose of camera imaging quality inspection and experiment, make things convenient for the application research and development of camera technique.
The versatility aspect of the whole system of Chinese patent CN1402545A is relatively poor, mainly shows the real-time demonstration that can not realize the unknown parameters digital camera, and this system needs external conformable display could show output.
Summary of the invention
The Camera Link interface digital camera self adaptation adjustment that the present invention is directed to unknown parameter shows the problem of existence in real time, a kind of non-standard digital videos self adaptation conversion and display unit.This device does not need to join in addition display, and it is more convenient to use.
As shown in Figure 1, filled arrows is represented control signal, the hollow arrow designate data signal.
A kind of being used for is made up of video data level conversion unit 1, IMAQ and graphics processing unit 2, central processor unit 3, data memory unit 4, program memory cell 5, video display unit 6 conversion of non-standard digital videos self adaptation and device shown; Described video data level conversion unit 1, IMAQ are connected with central processor unit 3 with graphics processing unit 2 in order, and central processor unit 3 also is connected respectively with data memory unit 4, program memory cell 5 and video display unit 6;
Described IMAQ and graphics processing unit 2 are by interconnected initialization module 7, and controlling of sampling module 8 constitutes with ping-pong operation cache module 9; Initialization module 7 all is connected with video data level conversion unit 1 with controlling of sampling module 8; Initialization module 7 is responsible for the initialization of IMAQ and graphics processing unit 2, and controlling of sampling module 8 is responsible for the acquisition control of view data task, and ping-pong buffer module 9 is used for the buffer-stored of vedio data;
Video data level conversion unit 1 converts vision signal into picture signal that IMAQ and graphics processing unit 2 can be discerned; IMAQ and graphics processing unit 2 begin to gather a two field picture, and a two field picture that will collect is stored in the ping-pong buffer module 9; When ping-pong buffer module 9 expired, IMAQ and graphics processing unit 2 produced and interrupt; Central processor unit 3 produces the various clock signals of control whole system each several part collaborative work; And central processor unit 3 responses are interrupted and start image reading program the data read of ping-pong buffer module 9 is got in the data memory unit 4; After data memory unit 4 receives a two field picture; Central processor unit 3 calls image display program; Data are sent into video display unit 6 demonstrations, and adopting adaptive algorithm to realize resolution is that 300,000~1,000 ten thousand pixels, frame frequency detect identification and demonstration at the camera parameter of 30~1000fps scope; A kind ofly be used for procedure stores to non-standard digital videos self adaptation conversion and device shown at program memory cell 5.
Introduce combined with hardware below and introduce the program circuit shown in the accompanying drawing 2.
After system powers on, system initialization;
Whether system detects input signal effective, and when detecting the effective video signal, video data level conversion unit 1 converts vision signal into picture signal that IMAQ and graphics processing unit 2 can be discerned;
IMAQ and graphics processing unit 2 begin to gather a two field picture, and a two field picture that will collect is stored in the ping-pong buffer module 9;
When ping-pong buffer module 8 expired, IMAQ and graphics processing unit 2 produced and interrupt, and central processor unit 3 responses are interrupted and the startup image reading program is got the data read of ping-pong buffer module 9 in the data memory unit 4;
After data memory unit 4 received a two field picture, central processor unit 3 called image display program, data is sent into video display unit 6 show.
Beneficial effect: a kind of being used for of the present invention to conversion of non-standard digital videos self adaptation and device shown; Because image displaying part is incorporated in the system; Make the application convenience of system stronger, for the processing of camera image and be presented in the system and realize in the lump.The camera signal connecting system directly shows, need not to join in addition display, and easy and simple to handle portable, cost is low; There is the adaptability of certain limit in system, can both discern for present existing its parameter of most of cameras, and highly versatile, with strong points, for the needs of camera applications under the special occasions and practice thrift R&D costs and have very great help.Fig. 3 is the contrast that tradition shows required cost and native system cost, and traditional camera image shows that need hardware supports such as image pick-up card, computer, cost is more than 10000 yuans; The circuit board that it is core that native system only needs with a processor and the combination of LCD just can realize that image shows 2000 yuan of cost less thaies.The weight of conventional image display system is about 20kg, and native system weight is about 0.5kg.
Description of drawings
Fig. 1 is a kind of formation schematic block diagram that is used for conversion of non-standard digital videos self adaptation and device shown.
Fig. 2 is a kind of program flow diagram that is used for conversion of non-standard digital videos self adaptation and device shown.
Fig. 3 is the comparison diagram for the cost of conventional display device and conversion of a kind of non-standard digital videos self adaptation and display unit.
Embodiment
Embodiment 1 is as shown in Figure 1, and filled arrows is represented control signal, the hollow arrow designate data signal.A kind of being used for is made up of video data level conversion unit 1, IMAQ and graphics processing unit 2, central processor unit 3, data memory unit 4, program memory cell 5 and video display unit 6 conversion of non-standard digital videos self adaptation and device shown; Described video data level conversion unit 1, IMAQ are connected with central processor unit 3 with graphics processing unit 2 in order, and central processor unit 3 also is connected respectively with data memory unit 4, program memory cell 5 and video display unit 6;
Described IMAQ and graphics processing unit 2 are by interconnected initialization module 7, and controlling of sampling module 8 constitutes with ping-pong operation cache module 9; Initialization module 7 all is connected with video data level conversion unit 1 with controlling of sampling module 8; Initialization module 7 is responsible for the initialization of IMAQ and graphics processing unit 2, and wherein controlling of sampling module 8 is responsible for the acquisition control of view data task, and ping-pong buffer module 9 is used for the buffer-stored of vedio data;
Video data level conversion unit 1 converts vision signal into picture signal that IMAQ and graphics processing unit 2 can be discerned; IMAQ and graphics processing unit 2 begin to gather a two field picture, and a two field picture that will collect is stored in the ping-pong buffer module 9; When ping-pong buffer module 9 expired, IMAQ and graphics processing unit 2 produced and interrupt; Central processor unit 3 produces the various clock signals of control whole system each several part collaborative work; And central processor unit 3 responses are interrupted and start image reading program the data read of ping-pong buffer module 9 is got in the data memory unit 4; After data memory unit 4 receives a two field picture; Central processor unit 3 calls image display program; Data are sent into video display unit 6 demonstrations, and adopting adaptive algorithm to realize resolution is that 300,000~1,000 ten thousand pixels, frame frequency detect identification and demonstration at the camera parameter of 30~1000fps scope; A kind ofly be used for procedure stores to non-standard digital videos self adaptation conversion and device shown at program memory cell 5.
Described video data level conversion unit 1 adopts DS90CR288A; Central processor unit 3 adopts Intel PXA255; Data memory unit 4 adopts the K4S561632E-TC75 of SAMSUNG company; Program processor unit 5 adopts the 3V Strata Flash TM memory E28F128J3A of Intel Company, shows the TFT6448-8 of Science and Technology Ltd. in the video display unit 6 employing Wuhan; Module 7 is selected the EPCS1N of configuring chip Altera for use, and controlling of sampling module 8 is selected the EP2C8Q208CN of Altera for use, and ping-pong operation cache module 9 is selected the IS61LV51216 of ISSI for use; Among the procedure stores E28F128J3A of system.
Introduce combined with hardware below and introduce the program circuit shown in the accompanying drawing 2.
After system powers on, be written into the EP2C8Q208CN initialization by the EPCS1N data, the E28F128J3A data are written into Intel PXA255 initialization; Whether system detects input signal effective, and when detecting the effective video signal, DS90CR288A converts vision signal into picture signal that EP2C8Q208CN can discern; IMAQ and graphics processing unit 2 begin to gather a two field picture; And a two field picture that will collect is stored among the IS61LV51216, and when IS61LV51216 was full, IMAQ produced interruptions with graphics processing unit 2; Intel PXA255 response is interrupted and starts image reading program the data read among the IS61LV51216 is got among the K4S561632E-TC75; After K4S561632E-TC75 received a two field picture, Intel PXA255 called image display program, data is sent into TFT6448-8 show.

Claims (1)

1. one kind is used for conversion of non-standard digital videos self adaptation and device shown; It is characterized in that it is made up of video data level conversion unit (1), IMAQ and graphics processing unit (2), central processor unit (3), data memory unit (4), program memory cell (5) and video display unit (6); Described video data level conversion unit (1), IMAQ are connected with central processor unit (3) with graphics processing unit (2) in order, and central processor unit (3) also is connected respectively with data memory unit (4), program memory cell (5) and video display unit (6);
Described IMAQ and graphics processing unit (2) are made up of initialization module (7), controlling of sampling module (8) and ping-pong operation cache module (9); Initialization module (7) all is connected with video data level conversion unit (1) with controlling of sampling module (8); Initialization module (7) is responsible for the initialization of IMAQ and graphics processing unit (2), and wherein controlling of sampling module (8) is responsible for the acquisition control of view data task, and ping-pong buffer module (9) is used for the buffer-stored of vedio data;
Video data level conversion unit (1) converts vision signal into picture signal that IMAQ and graphics processing unit (2) can be discerned; IMAQ and graphics processing unit (2) begin to gather a two field picture, and a two field picture that will collect is stored in the ping-pong buffer module (9); When ping-pong buffer module (9) was full, IMAQ and graphics processing unit (2) produced and interrupt; Central processor unit (3) produces the various clock signals of control whole system each several part collaborative work; And central processor unit (3) response is interrupted and starts image reading program the data read of ping-pong buffer module (9) is got in the data memory unit (4); After data memory unit (4) receives a two field picture; Central processor unit (3) calls image display program; Data are sent into video display unit (6) demonstration, and adopting adaptive algorithm to realize resolution is that 300,000~1,000 ten thousand pixels, frame frequency detect identification and demonstration at the camera parameter of 30~1000fps scope; The procedure stores of a kind of non-standard digital videos self adaptation conversion and display unit is in program memory cell (5).
CN2009100671912A 2009-06-30 2009-06-30 Adaptive conversion and display device of non-standard digital videos Expired - Fee Related CN101902608B (en)

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CN104618697B (en) * 2015-01-28 2017-11-24 中国科学院光电技术研究所 FPGA-based full-configuration Camera link optical fiber real-time image optical transceiver
CN106528449B (en) * 2016-10-13 2019-10-22 中国船舶工业系统工程研究院 A kind of data core processing system applied to marine geophysical prospecting
CN109299030B (en) * 2018-09-10 2019-06-11 南京莱斯电子设备有限公司 The method that cameralink based on ZYNQ turns PAL system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1402545A (en) * 2001-12-06 2003-03-12 中国科学院长春光学精密机械与物理研究所 Picture system exchange display system
CN101427303A (en) * 2006-04-20 2009-05-06 思科技术公司 Latency reduction in a display device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1402545A (en) * 2001-12-06 2003-03-12 中国科学院长春光学精密机械与物理研究所 Picture system exchange display system
CN101427303A (en) * 2006-04-20 2009-05-06 思科技术公司 Latency reduction in a display device

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