Lg electronics inc. (20240348829). VIDEO CODING METHOD ON BASIS OF SECONDARY TRANSFORM, AND DEVICE THEREFOR simplified abstract
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VIDEO CODING METHOD ON BASIS OF SECONDARY TRANSFORM, AND DEVICE THEREFOR
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VIDEO CODING METHOD ON BASIS OF SECONDARY TRANSFORM, AND DEVICE THEREFOR - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240348829 titled 'VIDEO CODING METHOD ON BASIS OF SECONDARY TRANSFORM, AND DEVICE THEREFOR
The patent application describes a video transform method that involves receiving a quantized transform coefficient for a target block and a transform index for a non-separated secondary transform. The method includes inverse-quantizing the quantized transform coefficient and deriving input and output transform coefficient sizes based on the length of the inverse-quantized transform coefficient to which the secondary transform has been applied. Additionally, a transform set mapped to the intra mode of the target block is determined when the transform index indicates that the secondary transform is performed. The modified transform coefficient is then derived using a matrix operation on a transform kernel matrix in the transform set indicated by the transform index and a transform coefficient list corresponding to the input transform coefficient size.
- Receiving quantized transform coefficient and transform index for a secondary transform
- Inverse-quantizing the quantized transform coefficient
- Deriving input and output transform coefficient sizes based on the length of the inverse-quantized transform coefficient
- Determining transform set mapped to the intra mode of the target block
- Deriving modified transform coefficient using a matrix operation on a transform kernel matrix and transform coefficient list
Potential Applications: - Video compression technology - Image processing applications - Multimedia streaming services
Problems Solved: - Efficient video encoding and decoding - Improved image quality - Reduced data storage requirements
Benefits: - Enhanced video compression efficiency - Higher quality images - Reduced bandwidth usage in multimedia applications
Commercial Applications: Title: Advanced Video Compression Technology for Multimedia Streaming Services This technology can be utilized in video streaming platforms, video conferencing services, and digital media production companies to improve video quality and reduce data storage requirements.
Questions about the technology: 1. How does this video transform method improve video compression efficiency? 2. What are the potential applications of this technology in image processing?
Original Abstract Submitted
a video transform method includes: receiving a quantized transform coefficient for a target block and a transform index for a non-separated secondary transform; inverse-quantizing the quantized transform coefficient; deriving an input transform coefficient size indicating the length of the inverse-quantized transform coefficient to which the non-separated secondary transform has been applied, an output transform coefficient size indicating the length of a modified transform coefficient to which the non-separated secondary transform has been applied, and a transform set mapped to the intra mode of the target block, when the transform index does not indicate that the non-separated secondary transform is not performed; and deriving the modified transform coefficient on the basis of a matrix operation on a transform kernel matrix in the transform set indicated by the transform index, and a transform coefficient list corresponding to the input transform coefficient size.
