US Patent Application 18219012. IMAGE CODING METHOD AND DEVICE USING DEBLOCKING FILTERING simplified abstract
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IMAGE CODING METHOD AND DEVICE USING DEBLOCKING FILTERING
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IMAGE CODING METHOD AND DEVICE USING DEBLOCKING FILTERING - A simplified explanation of the abstract
This abstract first appeared for US patent application 18219012 titled 'IMAGE CODING METHOD AND DEVICE USING DEBLOCKING FILTERING
Simplified Explanation
The patent application describes a method for decoding an image using a decoding device. Here are the key points:
- The method involves generating a restoration picture based on prediction samples of a coding block.
- A boundary strength (BS) is derived for the boundary of the coding block in the restoration picture.
- Deblocking filtering is performed on the boundary of the coding block based on the boundary strength.
- A modified restoration picture is derived based on the deblocking filtering.
- The boundary strength is determined by the prediction mode of adjacent blocks.
- The prediction mode of the adjacent blocks is based on whether it is a current picture referencing (CPR) mode to be coded in reference to a current picture.
Original Abstract Submitted
A method by which a decoding device decodes an image, according to the present document, comprises the steps of: generating a restoration picture on the basis of prediction samples of a coding block; deriving a boundary strength (BS) for a boundary of the coding block in the restoration picture; performing deblocking filtering on the boundary of the coding block on the basis of the boundary strength; and deriving a modified restoration picture for the restoration picture on the basis of the deblocking filtering, wherein the boundary strength is derived on the basis of a prediction mode of a first block and a second block that are adjacent to the boundary of the coding block, and the prediction mode of the first block or the second block is derived on the basis of whether the prediction mode of the first block or the second block is a current picture referencing (CPR) mode to be coded in reference to a current picture.
