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Image encoding and decoding method, device and system

An image encoding and image decoding technology, applied in the field of image processing, can solve the problems of increasing the identification load of the encoding code stream and reducing the encoding efficiency.

Active Publication Date: 2018-01-12
HUAWEI TECH CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide an image encoding and decoding method, device, and system to solve the problem that in the existing SVD decomposition technology, the encoding end needs to transmit the U matrix and V matrix obtained by SVD decomposition to the decoding end, or several The index values ​​of the sets of U and V matrices are transmitted to the decoding end, which increases the identification load of the encoded code stream and causes the problem of reduced encoding efficiency

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  • Image encoding and decoding method, device and system

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Embodiment Construction

[0090] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without any creative effort fall within the protection scope of the present invention.

[0091] In video codec standards, such as Moving Picture Experts Group (MPEG) and Advanced Video Coding (H.264 / AVC), an image block, or macro block, It is called a coding unit (Coding Unit) in the High Efficiency Video Coding (HEVC) standard. An image block can be divided into several sub-image blocks, and the size of these sub-image blocks can...

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Abstract

The present invention discloses an image encoding and decoding method, device and system, wherein, the encoding end performs singular vector decomposition on the prediction block corresponding to the image block to be encoded to obtain the eigenvector matrices U and V of the prediction block; according to the prediction block The eigenvector matrices U and V encode the residual data, wherein the residual data is the difference between the pixel value of the image block to be encoded and the pixel value of the corresponding prediction block; The identification payload of the codestream.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of image processing, and in particular, to an image encoding and decoding method, device, and system. Background technique [0002] In order to minimize the bandwidth required to transmit video data, for example, the video data can be compressed by using an intra-frame compression method or an inter-frame compression method, wherein the inter-frame compression method is usually an inter-frame compression method based on motion estimation. The decoding process specifically includes: the encoder divides the image block to be encoded into several sub-image blocks of equal size, and for each sub-image block, searches the reference image for the image block that best matches the current sub-image block as the prediction block, and then Subtract the sub-image block from the corresponding pixel value of the prediction block to obtain the residual, and perform entropy coding on the value obtain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/517H04N19/139H04N19/61H04N19/147H04N19/176
CPCH04N19/12H04N19/147H04N19/176H04N19/463H04N19/18H04N19/44H04N19/46H04N19/513H04N19/172H04N19/48H04N19/517
Inventor 曹潇然何芸郑萧桢郑建铧
Owner HUAWEI TECH CO LTD
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