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Image encoding and decoding method, image data processing method and device thereof

A technology for image data and image coding, which is applied in the field of communication, can solve problems affecting the decoding quality of video and other image data, the adverse effects of intra-frame coding block transmission errors, and reduce the error recovery ability of the intra-frame refresh method, so as to improve the error recovery ability , Improve the effect of decoding quality

Active Publication Date: 2017-09-12
HUAWEI TECH CO LTD
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Problems solved by technology

[0005] However, if the adjacent coding block of an intra coding block is an inter coding block, since the inter coding block still refers to the previous P frame, the inter coding block may also accumulate some transmission error, and pass the error to the intra-frame coding block for refreshing, so that the intra-frame coding block is also adversely affected by the transmission error, thereby greatly reducing the error recovery capability that the intra-frame refresh method should have, affecting such as video The decoding quality of image data such as

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  • Image encoding and decoding method, image data processing method and device thereof
  • Image encoding and decoding method, image data processing method and device thereof
  • Image encoding and decoding method, image data processing method and device thereof

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[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0027] figure 1 Scenarios in which the embodiments of the present invention are applied are shown. Such as figure 1 As shown, video frames may include intra-coded frames (such as figure 1 shown in the I-frame) and inter-coded frames (such as figure 1 As shown in the P frame in ), the intra-coded frame and the inter-frame coded frame can be divided into multiple coded blocks, wherein all coded blocks in the intra-coded frame are intra-coded blocks, and t...

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Abstract

The invention discloses an image coding method, an image decoding method, a method for processing image data and equipment thereof. The image coding method of the present invention includes: determining the current intra-frame coding block adopting the constrained intra-frame prediction mode in the current inter-frame coding frame; determining that the adjacent coding blocks adjacent to the current intra-frame coding block include adjacent inter-frame coding blocks ; Based on the fixed value or the image data in the adjacent intra-frame coding block included in the adjacent coding block, the image data in the adjacent inter-frame coding block is updated; based on the updated in the adjacent inter-frame coding block The image data of the current intra-frame coding block is coded. The device for image encoding of the present invention includes: a first determining module, a second determining module, an updating module and an encoding module. By adopting the method and device of the present invention, the error recovery ability of intra-frame coded blocks can be improved, and the decoding quality of image data can be improved.

Description

technical field [0001] The invention relates to the communication field, in particular to an image coding method, an image decoding method, a method for processing image data and equipment in the communication field. Background technique [0002] Bit error or packet loss of video data in wired network and wireless network is inevitable, especially in wireless network. However, the video data compressed efficiently by tools such as variable length coding has a great correlation in semantics. Therefore, the video data is very sensitive to network errors such as bit errors and packet loss. Once there are bit errors in the video data, not only It affects the restoration of current video data, and also causes error diffusion in the time and space domains, and the predictive coding of video data also makes an error in a certain frame have an error accumulation effect on subsequent frames. Therefore, it is necessary to take corresponding measures to improve the anti-error ability ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/105H04N19/65H04N19/176
Inventor 赖昌材林永兵郑萧桢
Owner HUAWEI TECH CO LTD
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