Design And Realization Of Video Processing System Including Noise Reduction And Time Based Corrector

(Design and Realization of Video Processing System Including Noise Reduction and Time Based Corrector } is a project which is consigned to develop by the YINCHENG Electronics Co. Ltd in ChangZhou.Through using for reference and demonstrating the technology of Video Processing System of domestic and foreign , author has put forward a set of video processing system schemes suitable for the China' s actual conditions . by using the digital technology , such as digital encode-decode, digital phase-locked, digital filter , digital image storing ,the system schemes realizes TV signal noise reduction and time error elimination in real time, and makes the system be a integrated noise reduction and time based corrector really. The subject has mainly finished designing and debugging software and hardware of A/D decode module, FPGA video processing module, video data frame deposit module, base clock produce module , D/A encode module , I2C bus control module , etc. A/D decode module gathers analog TV signals and realize video decode; FPGA video processing module deals with the data after decoding and produces systematic logic control signal; Video data frame deposit module offers the buffering area to a large number of high-speed video data; Base clock produce module through input basic video signal offers system accurate relevant synchronous signal ; under control of video processing module D/A decode module convert digital video data into compound TV signal which can be shown in TV directly ; I2C bus control module is used to initialize the chip of system by simulating I*C bus timing.The system has shown good performance after debugging, which can take place of domestic production in which noise reduction and correct time-based were separated .In addition , the problem of EMI in the PCB is also discussed in this paper.At end of the paper, the further improvement and assumption of video process system has proposed .