Method and device for intra prediction mode processing
An intra-frame prediction mode and prediction mode technology, applied in the field of image processing, can solve the problems of occupying memory overhead and reducing system resource utilization, and achieve the effect of improving utilization and saving memory overhead.
Active Publication Date: 2016-03-09
HUAWEI TECH CO LTD
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[0008] However, multiple LUT tables need to be used in the mapping process, which occupies a certain amount of memory overhead and reduces the utilization of system resources.
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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but 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 creative efforts fall within the protection scope of the present invention.
[0021] figure 1 A flowchart showing a method for intra prediction mode processing according to an embodiment of the present invention.
[0022] Such as figure 1 As shown, in 110, it is determined whether the intra prediction mode of each neighboring block of the plurality of neighboring blocks of the current block is applicable to the current block. In 120, according to the determined result, multiple MPMs (or a set of multiple MPMs) of the current b...
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Embodiments of the present invention provide a method and device for intra-frame prediction mode processing. The method includes: determining whether the intra prediction mode of each adjacent block of a plurality of adjacent blocks of the current block is applicable to the current block; according to the determined result, obtaining a plurality of mapped intra prediction modes of the current block, wherein In the case where it is determined that the intra prediction mode of the adjacent block is applicable to the current block, the intra prediction mode of the adjacent block is set as the mapped intra prediction mode of the current block, and when the intra prediction mode of the adjacent block is determined not to be In the case of applying to the current block, the specific intra prediction mode is set as the intra prediction mode of the mapping of the current block. In the embodiment of the present invention, when it is determined that the intra-frame prediction mode of the adjacent block is not applicable to the current block, a specific intra-frame prediction mode can be set as the intra-frame prediction mode of the mapping of the current block, so that no Lookup LUT table, which simplifies software and hardware implementation.
Description
technical field [0001] Embodiments of the present invention relate to the field of image processing, and more specifically, to a method and device for intra-frame prediction mode processing. Background technique [0002] The basic principle of video coding and compression is to use the correlation between space domain, time domain and code words to remove redundancy as much as possible. The current popular approach is to use a block-based hybrid video coding framework to achieve video coding and compression through steps such as prediction, transformation, quantization, and entropy coding. From the earliest MPEG-1 to the latest video coding standard H.264 / AVC, and even the next-generation video coding compression standard being developed by the JCTVC working group (a joint working group established by MPEG and VECG), High Efficiency Video Coding (HEVC), Both adopt this block-based hybrid video coding framework. [0003] The intra-frame coding technology in the H.264 standa...
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IPC IPC(8): H04N19/593
CPCH04N19/176H04N19/196H04N19/11H04N19/593
Inventor 林永兵郑萧桢
Owner HUAWEI TECH CO LTD