Method and device for entropy encoding, decoding video signal
AssigneeLG Electronics Inc.
InventorsMoonmo Koo, Seunghwan Kim
Life of this patent
Estimating the term…
Abstract
The present disclosure provides a method for decoding a video signal, the method comprising the steps of: decoding, from a bitstream, a syntax element indicating the last non-zero region, wherein the last non-zero region represents a region including the last non-zero transform coefficient in a scan order; splitting a current block into multiple sub-regions; and based on the syntax element, determining the last non-zero region of the current block among the split sub-regions.
Claims13
A method for decoding a video signal, the method comprising:
- checking whether a coding block is divided into a plurality of transform blocks;
- based on the coding block being divided into the plurality of transform blocks, determining a limited region in the coding block based on a width and a height of a transform block of the plurality of transform blocks, wherein a last non-zero transform coefficient is positioned in the limited region;
- obtaining first information regarding a position of the last non-zero transform coefficient within the limited region;
- and
- decoding the transform block based on the position of the last non-zero transform coefficient,
- wherein the first information is binarized based on a truncated unary code allocated within the limited region.
A device for decoding a video signal, comprising:
- a processor configured to
- check whether a coding block is divided into a plurality of transform blocks,
- based on the coding block being divided into the plurality of transform blocks, determine a limited region in the coding block based on a width and a height of a transform block of the plurality of transform blocks, wherein a last non-zero transform coefficient is positioned in the limited region,
- obtain first information regarding a position of the last non-zero transform coefficient within the limited region, and
- decode the transform block based on the position of the last non-zero transform coefficient,
- wherein the first information is binarized based on a truncated unary code allocated within the limited region.
A non-transitory computer readable medium storing a bitstream causing an image decoding apparatus to perform an image decoding method, the image decoding method comprising:
- checking whether a coding block is divided into a plurality of transform blocks;
- based on the coding block being divided into the plurality of transform blocks, determining a limited region in the coding block based on a width and a height of a transform block of the plurality of transform blocks, wherein a last non-zero transform coefficient is positioned in the limited region;
- obtaining first information regarding a position of the last non-zero transform coefficient within the limited region;
- and
- decoding the transform block based on the position of the last non-zero transform coefficient,
- wherein the first information is binarized based on a truncated unary code allocated within the limited region.
Dependencies are inferred from the claim text.