Quick refreshing method and device for video code processing

A video encoding and fast technology, applied in the direction of digital video signal modification, TV, electrical components, etc., can solve problems such as annoying users, redundant sampling signals, oversampling of low-frequency components, etc.

Active Publication Date: 2007-05-16
BEIJING MICRO VISION COMM DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because real video signals contain low-frequency components that account for the majority, 2 times the sampling frequency will cause oversampling of low-frequency components
Therefore, there will be a considerable amount of redundancy in the sampled signal
[0008] 2. Oversampling of bit resolution - Redundancy also arises from oversampling of the resolution (bits) of each sample
[0012] 6. Frequency redundancy - some video elements can be expected to appear more frequently than others
This delay in receiving video can be very annoying to users

Method used

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  • Quick refreshing method and device for video code processing

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Embodiment Construction

[0025] In order to facilitate the understanding of the specific technical solutions of the present invention, the specific technical concepts involved are firstly defined.

[0026] definition:

[0027] Quantization - converting information into a discrete form that is different from its original form. For example, 0, 1, 2, 3, 4, 5, and 6 can be quantized into 2, 4, and 6 using the following algorithm.

[0028] If(input value)<4then(output value)=2: GoTo End

[0029] If(input value)>3AND(input value)<6then(output value)=4 Else

[0030](output value) = 6

[0031] end

[0032] Quantizer - An instrument or algorithm that forms quantized (discrete form) information.

[0033] Delta - The result of the difference or subtraction of two values.

[0034] For example, A=(B-C) means that A is the difference between B and C. If B is greater than C, then the delta value is positive. If C is greater than B, the delta value is negative.

[00...

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PUM

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Abstract

The provided fast refresh method in video coding process comprises: in every video signal frame, according to frame-to-frame cycle rule, coding new non-correlative data to code video information based on interframe correlation. It also provides a relative coding device controlled by user register. This invention can minimize the video information transmission error and data interruption, and improve efficiency and quality for compression and coding.

Description

technical field [0001] The present invention generally relates to the field of video encoding and compression, and more particularly relates to a fast refresh method and apparatus that can be used in video encoding processing. Background technique [0002] Existing video coding implementations are based on frequency-domain algorithms, such as those encoder algorithms that apply cosine transforms in the frequency domain. But these encoder algorithms have some drawbacks. For example, semiconductor implementations of real-time frequency-domain encoders typically require more than 8 million transistors. Frequency domain coders use quantized frequency components to reduce the amount of encoded information. This may result in the loss of some high frequency components, reducing the clarity and resolution of the video. VICOMP (Video Coding and Compression System and Device) is a digital video coding scheme based on high-quality, real-time, high-efficiency video coding (high comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N19/107
Inventor 李将毕景江熊杰
Owner BEIJING MICRO VISION COMM DIGITAL TECH
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