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Encoder, decoder, video frame coding method and bit stream decoding method

An encoder and video frame technology, which is applied in the field of video encoding and decoding, and can solve problems such as inability to remove block quantization errors.

Active Publication Date: 2009-06-17
HFI INNOVATION INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The deblocking filter reduces artifacts at the edges of blocks, but does not remove quantization errors within blocks
Deblocking filters alone are not sufficient when performing high fidelity encoding with large quantization values

Method used

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  • Encoder, decoder, video frame coding method and bit stream decoding method
  • Encoder, decoder, video frame coding method and bit stream decoding method
  • Encoder, decoder, video frame coding method and bit stream decoding method

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Embodiment Construction

[0026] In this specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use The difference in name is used as a way to distinguish components, but the difference in function of components is used as a criterion for distinction. The "comprising" mentioned in the entire specification and claims is an open term, so it should be interpreted as " Including but not limited to", in addition, the term "coupling" here includes any direct and indirect electrical connection means, therefore, if it is described in the text that the first device is coupled to the second device, it means that the first device can be directly electrically connected on the second device, or indirectly electrically connected to the second device through other devices or connection means.

[0027] The present invention will b...

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Abstract

The invention provides an encoder, decoder, video frame encoding method and bit stream decoding method. The encoder for receiving a video frame and performing encoding processes to generate an encoded bit stream includes: a fidelity enhancement block, for performing a fidelity enhancement technique on the video frame utilizing a quad- tree partition, and generating fidelity enhancement information including a parameter associated with the quad-tree partition structure; and an entropy coding block, coupled to the fidelity enhancement block, for encoding the fidelity enhancement information, and embedding the encoded fidelity enhancement information into the encoded bit stream. The said method and device make the decoder immediately stores the fidelity enhancement information and execute the fidelity enhancement without waiting for decoding all the bit streams through indicating the position of the fidelity enhancement information by an indicating needle.

Description

technical field [0001] The present invention relates to video encoding and decoding, and more particularly to fidelity processing during video encoding and decoding. Background technique [0002] The references quoted in the present invention are: the paper "Transmission of post-filter hints for video coding schemes" published by Stephen Wittmann and Thomas Wedi in the 2007 IEEE International Conference on Image Information Processing (ICIP2007) annual report, and the publication number is EP 1 European Patent Application 841 230 A1. [0003] Next-generation video coding methods aim to achieve the highest efficiency by compressing data as much as possible. If the data can be compressed significantly, high-quality video can be transmitted over networks with limited bandwidth. The H.264 / AVC (Advance Video Coding, AVC, Advanced Video Coding) coding standard is an example of a video coding standard. The H.264 standard combines block-based motion compensation with transform co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/50
CPCH04N19/00969H04N19/00781H04N7/50H04N7/26313H04N7/26978H04N19/00545H04N19/46H04N19/82H04N19/86H04N19/96H04N19/119H04N19/70H04N19/61H04N19/865H04N19/91
Inventor 雷少民黄毓文郭峋
Owner HFI INNOVATION INC
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