18376345. INTRA BLOCK COPY PREDICTION FOR OVERLAPPED REFERENCE BLOCK simplified abstract (TENCENT AMERICA LLC)
INTRA BLOCK COPY PREDICTION FOR OVERLAPPED REFERENCE BLOCK
Organization Name
Inventor(s)
Xiaozhong Xu of State College PA (US)
Roman Chernyak of Palo Alto CA (US)
INTRA BLOCK COPY PREDICTION FOR OVERLAPPED REFERENCE BLOCK - A simplified explanation of the abstract
This abstract first appeared for US patent application 18376345 titled 'INTRA BLOCK COPY PREDICTION FOR OVERLAPPED REFERENCE BLOCK
The patent application describes methods and apparatuses for processing picture blocks coded according to a prediction mode with a block vector (BV).
- Processing circuitry receives a bitstream of a current block in a picture.
- The bitstream includes coding information indicating the current block is coded with a prediction mode and BV.
- The circuitry determines a reference block in the picture based on the BV of the current block.
- The reference block and the current block have an overlapped region.
- The reference block contains unreconstructed samples and reconstructed samples outside the overlapped region.
- The circuitry reconstructs the overlapped region in the current block based on the reconstructed samples in the reference block.
- The width and height of the overlapped region are multiples of 4.
Potential Applications: - Video compression technology - Image processing algorithms - Multimedia applications
Problems Solved: - Efficient coding and decoding of picture blocks - Improved image quality in multimedia applications
Benefits: - Enhanced compression efficiency - Higher quality images in multimedia content - Reduced data transmission requirements
Commercial Applications: - Video streaming services - Digital media production - Telecommunication industry
Questions about the technology: 1. How does this technology improve image compression efficiency?
This technology improves compression efficiency by reconstructing overlapped regions in picture blocks based on reference blocks, reducing data redundancy.
2. What impact does this technology have on multimedia applications?
This technology enhances the quality of multimedia content by improving the coding and decoding processes for picture blocks.
Original Abstract Submitted
Aspects of the disclosure includes methods and apparatuses. One of the apparatuses includes processing circuitry that is configured to receive a bitstream of a current block in a picture. The bitstream includes coding information indicating that the current block is coded according to a prediction mode with a block vector (BV). The processing circuitry determines a reference block in the picture based on the BV of the current block. The reference block and the current block have an overlapped region. The reference block includes both (i) unreconstructed samples in the overlapped region and (ii) reconstructed samples that are outside the overlapped region. The processing circuitry reconstructs the overlapped region in the current block based on the reconstructed samples in the reference block that are outside the overlapped region. In an example, a width of the overlapped region and a height of the overlapped region are multiples of 4.
