Embedded video compression coding system with image enhancement function

Abstract

The invention discloses an embedded video compression coding system with an image enhancement function. A video enhancement module of the system optimizes videos in the aspects of color, hierarchy, definition and the like to ensure high-definition television display quality. The system comprises an analogue video signal input interface and an embedded digital signal processor (DSP) compression coding system. The DSP compression coding system comprises a video analysis system, a video enhancement system and a video compression coding system, wherein the video analysis system comprises a scene detection module and a color detection module; the video enhancement system comprises a luminance enhancement module, a color enhancement module and a parameter adaptation module; and the video compression coding system comprises a dynamic code rate regulation module and a video compression module. The embedded video compression coding system is implemented by DSP chip programming, realizes the smooth playing of high-definition television programs by improving a compression algorithm, lays a solid foundation for the future provision of more and better application, and is consistent with the development trend of intelligent home.

Description

technical field [0001] The invention relates to the field of image high-definition display, in particular to an embedded video compression coding system with image enhancement function. Background technique [0002] High-definition television (HDTV) came out in the 1990s, and its main features are the enjoyment of high resolution, surround sound and cinema effect. Due to the above-mentioned advantages, high-definition television has been popularized in some developed countries. With the improvement of the living standards of the Chinese people, the nationals have higher and higher requirements for audio-visual products such as TV and DVD, and high-definition TV has also set off a boom in China in recent years by virtue of its advantages. As a hot spot in the development of TV technology, the technical realization of high-definition TV has attracted attention from all sides. [0003] Compared with the people's enthusiasm for HDTV, the performance of domestic HDTV technology...

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Problems solved by technology

[0003] Compared with the people's enthusiasm for HDTV, the performance of domestic HDTV technology at the current stage is unsatisfactory. There are several shortcomings: First, the domestic standards for HDTV are not uniform, and the signal data is not uniform even after digitalization. After the TV conversion, the TV stations still transmit SD signals, and the set-top boxes at home can only meet the reception of SD signals; second, "HD" is not HD, and the resolution of current HD digital signals is sufficient, but due to the Enlargement processing will distort local clarity and color, which will affect the viewing effect; thirdly, the capacity of high-definition digital TV programs is very large, so the requirements for video compression algorithms are very high, otherwise it will lead to unsmooth playback

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