18352775. VIDEO SIGNAL PROCESSING METHOD AND APPARATUS USING MULTIPLE TRANSFORM KERNELS simplified abstract (Samsung Electronics Co., Ltd.)
VIDEO SIGNAL PROCESSING METHOD AND APPARATUS USING MULTIPLE TRANSFORM KERNELS
Organization Name
Inventor(s)
Dongcheol Kim of Suwon-si (KR)
VIDEO SIGNAL PROCESSING METHOD AND APPARATUS USING MULTIPLE TRANSFORM KERNELS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18352775 titled 'VIDEO SIGNAL PROCESSING METHOD AND APPARATUS USING MULTIPLE TRANSFORM KERNELS
Simplified Explanation
The abstract describes a video signal processor that performs transformations on a residual signal of a current block from a video signal bitstream. The processor obtains a transform block consisting of multiple transform coefficients arranged in a two-dimensional manner. It determines a horizontal transform kernel based on the length of one side of the transform block, and a vertical transform kernel based on the length of the other side, regardless of the length of the first side. The processor then performs inverse transformation using the horizontal and vertical transform kernels to obtain the residual signal of the current block, and reconstructs the current block based on this residual signal.
- The video signal processor obtains a transform block for a residual signal of a current block from a video signal bitstream.
- It determines a horizontal transform kernel based on the length of one side of the transform block.
- It determines a vertical transform kernel based on the length of the other side of the transform block.
- The processor performs inverse transformation using the horizontal and vertical transform kernels on the transform block.
- It reconstructs the current block based on the obtained residual signal.
Potential applications of this technology:
- Video compression and encoding: The video signal processor can be used in video compression algorithms to efficiently transform and reconstruct video blocks, reducing the size of the video file.
- Video streaming: By efficiently processing video signals, this technology can enable smoother and faster video streaming over networks with limited bandwidth.
Problems solved by this technology:
- Efficient transformation: The processor determines the appropriate transform kernels based on the length of the transform block sides, allowing for efficient transformation of video blocks.
- Accurate reconstruction: By performing inverse transformation using the determined kernels, the processor can accurately reconstruct the current block from the residual signal, improving video quality.
Benefits of this technology:
- Improved video compression: The efficient transformation and reconstruction process can lead to better video compression ratios, reducing storage and bandwidth requirements.
- Enhanced video quality: Accurate reconstruction of video blocks can result in higher-quality video playback with reduced artifacts and distortions.
Original Abstract Submitted
A video signal processor is configured to: obtain at least one transform block for a residual signal of a current block from a video signal bitstream, wherein the transform block comprises a plurality of transform coefficients two-dimensionally arranged, determine, on the basis of length information of a first side of the transform block, a horizontal transform kernel for horizontal transformation of the transform block, regardless of a length of a second side of the transform block, which is orthogonal to the first side, determine, on the basis of length information of the second side, a vertical transform kernel for vertical transformation of the transform block, regardless of a length of the first side, obtain the residual signal of the current block by performing, on the transform block, inverse transformation using the horizontal transform kernel and the vertical transform kernel, and reconstruct the current block based on the residual signal.
