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Method for coding and decoding image parameters, device for coding and decoding image parameters and computer programs corresponding thereto

A technology of encoding method and decoding method, applied in the direction of image communication, digital video signal modification, electrical components, etc., can solve the problems of expensive binary sequence, unsatisfactory compression performance level, unable to optimize the reduction of coded data compression gain, etc.

Active Publication Date: 2019-06-04
ORANGE SA (FR)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0054] The disadvantage of this technique for encoding image parameters is that the resulting binary sequence is still expensive to signal
Therefore, the reduction in compression gain of encoded data cannot be optimized
This results in an unsatisfactory level of compression performance

Method used

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  • Method for coding and decoding image parameters, device for coding and decoding image parameters and computer programs corresponding thereto
  • Method for coding and decoding image parameters, device for coding and decoding image parameters and computer programs corresponding thereto
  • Method for coding and decoding image parameters, device for coding and decoding image parameters and computer programs corresponding thereto

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Experimental program
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Embodiment Construction

[0105] The specific implementation of the coding part

[0106] An embodiment of the invention will now be described, in which the encoding method according to the invention is used to encode image parameters according to a bit stream which is close to any one of the current or future video coding standards The bit stream obtained by encoding.

[0107] In this embodiment, the encoding method according to the invention is implemented eg by software or hardware by modifying an encoder originally conforming to one of said standards. Adoption includes such as Figure 2A Steps C1a to C5a as indicated in or as Figure 2B The encoding method according to the invention is represented in the form of the algorithm of steps C1b to C5b represented in .

[0108] According to an embodiment of the present invention, the encoding method according to the present invention is in image 3 Implemented in the encoding device CO represented in.

[0109] Such as image 3 As shown, such encode...

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Abstract

The invention relates to the coding of at least one current image parameter (Pu), characterized in that, in relation to a zone (Bi) of a current image (ICj), it implements the following: - as a function of the value of at least one parameter of an image zone which precedes said zone of the current image, selection (C3a) of a scheme for coding said at least one current image parameter, from among at least two predetermined coding schemes (MCx, MCy), - coding (C4a) of the value of said at least one current image parameter with the aid of the selected coding scheme (MCsel).

Description

technical field [0001] The present invention relates generally to the field of image processing, and more precisely to the encoding and decoding of parameters of digital images, whether these digital images are fixed or form part of a sequence of digital images. [0002] The encoding / decoding of such image parameters is particularly suitable for images originating from at least one video sequence, comprising: [0003] - images from the same camera and following each other in time (2D type encoding / decoding), [0004] - images from different cameras oriented according to different viewing angles (3D type encoding / decoding), [0005] - corresponding texture components and depth components (3D type encoding / decoding), [0006] -wait. [0007] The invention is also applicable to encoding / decoding of 2D type or 3D type image parameters. [0008] The invention can be applied specifically, but not exclusively, to video encoding implemented in current AVC and HEVC video encoders a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/13H04N19/136H04N19/157H04N19/176H04N19/597
CPCH04N19/597H04N19/176H04N19/13H04N19/136H04N19/157H04N19/103H04N19/463
Inventor P.菲利普K.路泽
Owner ORANGE SA (FR)
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