The rapid development of modern information technology and the improvement of people\'s quality of life have attracted extensive attention to the research and application of video processing, especially real-time image processing. In recent years, the continuous development of DSP technology has applied the theoretical research results in the field of digital signal processing to practical systems, and promoted the development of new theories and applications, which has played a very important role in the technical development of video processing and other fields. At the same time, with the rapid development of network, mobile communication and multimedia technology, embedded systems have also been more widely used. This paper analyzes the recent development status of embedded systems, DSP technology, and video processing systems. Combining the research results and practical development experience of our laboratory in three aspects: embedded development, H.264. Image encoding and decoding, and DSP technology, this paper proposes a hardware system architecture based on TMS320DM642 and ARM (S3C2410) of the TIC6000 series, and designs an embedded video processing system based on ARM+DSP. This system combines the DSP specially used for video image processing with the ARM processor with unique advantages in communication and real-time control, opening up a new way to implement some complex algorithms in embedded real-time environments. The paper first introduces the relevant technologies and standards of the system, including the ARM technology used in the control end, the DSP technology and the core processing algorithm H.264 encoding principle of the processing end, and gives the overall architecture and design ideas of the system. The whole system is divided into three parts: the control end, the processing end and the communication between the two. The control end is mainly composed of a minimum system, LCD, touch screen and matrix keyboard. The Linux operating system is transplanted on ARM, and the peripheral driver is written on it. The processing end includes video input, output module, storage module, network transmission module, and the basic grade T264 code is transplanted to DM642 and optimized. The video signal acquisition and echo program is completed, and the acquisition, processing and echo processes are added to the BIOS to realize the function of the processing end. The communication between the two adopts the communication mode of HPI16 mode. Finally, the performance of the system is tested, the test effect diagram is given, and the results are analyzed in detail. At the end of the article, the achievements and shortcomings of the research project are summarized; the ideas for further research and improvement of the system are given. Embedded is the mainstream of future development. With the further improvement of this system, it will have a broader application prospect.
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