Method and apparatus for obtaining size of transform block
AssigneesTsinghua University, Huawei Technologies Co., Ltd.
InventorsXiaozhen ZHENG, Yuan YUAN, Jianhua ZHENG, Yun HE
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Abstract
The present disclosure provides a method for obtaining a size of a transform block, where the method includes: obtaining a dividing manner of an image block; and obtaining size information of a post-dividing transform block according to the dividing manner of the image block and a width and a height of a pre-dividing transform block. By using the method for obtaining a size of a transform block provided in this embodiment of the present disclosure, a size of a transform block may be coded according to a dividing manner of an image block or a height and a width of a pre-dividing transform block, thereby effectively improving coding efficiency.
Claims21
A method for obtaining a size of a transform block implemented by hardware comprising a processor, comprising:
- obtaining a dividing manner of an image block;
- and
- obtaining size information of a post-dividing transform block according to the dividing manner of the image block and a width and a height of a pre-dividing transform block.
A method for obtaining a size of a transform block implemented by hardware comprising a processor, comprising:
- determining a preset maximum transform block size and a preset minimum transform block size;
- and
- obtaining size information of a post-dividing transform block according to a height of a pre-dividing transform block, a width of the pre-dividing transform block, and the preset maximum transform block size or the preset minimum transform block size.
An apparatus for obtaining a size of a transform block, comprising:
- a processor;
- a dividing manner obtaining module, configured to obtain a dividing manner of an image block;
- and
- a size information obtaining module, configured to obtain size information of a post-dividing transform block according to the dividing manner of the image block and a width and a height of a pre-dividing transform block.
An apparatus for obtaining a size of a transform block, comprising:
- a processor;
- a preset size determining module, configured to determine a preset maximum transform block size and a preset minimum transform block size;
- and
- a size information obtaining module, configured to obtain size information of a post-dividing transform block according to a height of a pre-dividing transform block, a width of the pre-dividing transform block, and the preset maximum transform block size or the preset minimum transform block size.
Dependencies are inferred from the claim text.