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DVD coding decoding method and system

An encoding and decoding method and encoding technology, applied in the field of video compression and decoding, can solve the problems of limited application scope, unsatisfactory development, and low performance-price ratio.

Inactive Publication Date: 2006-09-13
深圳市中科诺数码科技有限公司
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  • Application Information

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Problems solved by technology

Since CCITT announced the first international video coding standard in 1984, in the past 21 years, ITU-T and other international standardization organizations have promulgated nearly 10 video coding international standards, which greatly promoted the development of video communication and audio-visual technology. But strictly speaking, the development of the two major fields of video communication and audio-visual is not satisfactory so far. Generally speaking, the scope of application is not wide, mainly because the contradiction between video compression and quality cannot be well resolved.
For example: videophone has always been considered as an ideal communication device, but it has not been popularized in the past 30 years, because the performance-price ratio is not high

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  • DVD coding decoding method and system

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Embodiment Construction

[0038] As we all know, the key point of MPEG-4 technology is flexibility, good scalability, and expansion of time domain and space domain. In order to support high-tech compression, MPEG-4 is based on content interaction and content-based grading expansion. And H.264 supports 3 different grades of applications:

[0039] ①, basic grade: mainly used for "video conversation"

[0040] ②, extended grade: mainly used for network video communication

[0041] ③. Main grade: Mainly used in consumer electronics applications, such as digital TV broadcasting, digital video storage and playback-DVD products.

[0042] The H.264 / AVC standard has become a digital TV and video communication since the date of publication. Leading technologies in the fields of network media, multimedia short messages, etc. have been successfully introduced in the above fields, creating obvious economic benefits, and greatly improving the electronic products and transmission quality applied to them. Because H...

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Abstract

This invention relates to a coding-decoding method of H.264 used in DVD including: collecting images from an image source, coding and transmitting the collected images and decoding and playing back the got images, in which, RF signals are input to the digital filter network after demodulation and DSP, the digital filter network filters said signals to get a suitable digital signal input video coder, in the H.264 coder, it finishes the internal frame forecast, movement evaluation and expansion of memory control of the input signals. This invention also discloses a H.264 coding -decoding system for realizing said method.

Description

technical field [0001] The invention relates to a video compression decoding technology, in particular to a video compression decoding method and device for a DVD high-definition decoding board. Background technique [0002] Digital video technology has been widely used in communication and audio-visual fields, especially since the 1990s, with the rapid development of Internet and mobile communication, the processing and transmission technology of video information and multimedia information in Internet and mobile network has become The current hot spots in my country's informatization. [0003] As we all know, video information has a series of advantages, such as intuitiveness, certainty, high efficiency, extensiveness and so on. However, the amount of information in video coding information is too large. To make video effective, it is necessary to first solve the problem of video compression and coding, and secondly solve the problem of video quality assurance after compre...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/92G11B20/10
Inventor 刘永平
Owner 深圳市中科诺数码科技有限公司