Video image decoding method and terminal based on hevc protocol

A video image decoding and protocol technology, applied in the field of image processing, can solve the problems of complex calculation process, slow image decoding, high power consumption, etc., reduce memory, reduce the number of times of reading all-zero blocks and the number of integer multiplication operations, and improve efficiency effect

Inactive Publication Date: 2018-06-29
GUANGZHOU HUADUO NETWORK TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the conventional conversion process, it is inevitable to perform multiple memory reads and integer multiplications on the entire 32x32 block. ...

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  • Video image decoding method and terminal based on hevc protocol
  • Video image decoding method and terminal based on hevc protocol
  • Video image decoding method and terminal based on hevc protocol

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Embodiment Construction

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0037] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be unders...

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Abstract

The invention provides a video image decoding method based on a hevc protocol. The video image decoding method based on the hevc protocol comprises the steps of: traversing a 32*32 source pixel blockin a current frame image, obtaining a non-zero block and an all-zero block in the 32*32 source pixel block, and determining the relative positions of the non-zero block and the all-zero block in the 32*32 source pixel block; determining the cut-off value of the non-zero block according to the relative positions; and, operating the non-zero block based on a pre-set decoding rule and the cut-off value, so that a decoded image is obtained. According to the video image decoding method and terminal based on hevc protocol provided by the invention, the non-zero block and the all-zero block are separately processed; the occupied memory in the decoding process can be reduced; simultaneously, the memory reading and integer multiplication operation can be reduced; and the decoding efficiency is increased.

Description

technical field [0001] The present invention relates to the field of image processing, in particular, the present invention relates to a video image decoding method and terminal based on the HEVC protocol. Background technique [0002] On the basis of the existing HEVC standard, in the IDCT process of image decoding, the two-dimensional transformation method is adopted, which mainly performs one-dimensional transformation on the 32x32 residual block to generate a 32x32 temporary result; the second step is to Temporary 32x32 blocks, 2D transformation, and then generate the final IDCT result. During this process, the transformation needs to be designed to the IDCT standard coefficients, which are specified by the HEVC standard. In the conventional conversion process, it is unavoidable to perform multiple memory reads and integer multiplications on the entire 32x32 block. The calculation process is complicated, which makes the image decoding process slower, and requires high p...

Claims

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Application Information

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IPC IPC(8): H04N19/44H04N19/42
CPCH04N19/42H04N19/45
Inventor 张伟
Owner GUANGZHOU HUADUO NETWORK TECH
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