Methods of coding images/videos with alpha channels
AssigneeLemon Inc.
InventorsWeijia ZHU, Jizheng XU, Li ZHANG, Yue WANG
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Abstract
Example implementations include a method, apparatus and computer-readable medium of video coding, comprising performing a conversion between a video comprising a plurality of pictures and a bitstream of the video, wherein each picture comprises an alpha layer and at least one base layer, and wherein the bitstream comprises first layer information which is utilized in a first process performed on the at least one base layer and second layer information which is utilized in a second process performed on the alpha layer.
Claims24
A method of video processing, comprising:
- performing a conversion between a video comprising a plurality of pictures and a bitstream of the video, wherein each picture comprises an alpha layer and at least one base layer;
- wherein the bitstream comprises first layer information which is utilized in a first process performed on the at least one base layer and second layer information which is utilized in a second process performed on the alpha layer.
An apparatus for processing video data comprising a processor and a non-transitory memory with instructions thereon, wherein the instructions upon execution by the processor, cause the processor to:
- perform a conversion between a video comprising a plurality of pictures and a bitstream of the video, wherein each picture comprises an alpha layer and at least one base layer;
- wherein the bitstream comprises first layer information which is utilized in a first process performed on the at least one base layer and second layer information which is utilized in a second process performed on the alpha layer.
A non-transitory computer-readable recording medium storing a bitstream of a video which is generated by a method performed by a video processing apparatus, wherein the method comprises:
- generating a bitstream of the video from the video comprising a plurality of picture, wherein each picture comprises an alpha layer and at least one base layer;
- wherein the bitstream comprises first layer information which is utilized in a first process performed on the at least one base layer and second layer information which is utilized in a second process performed on the alpha layer.
A non-transitory computer-readable storage medium storing instructions that cause a processor to:
- perform a conversion between a video comprising a plurality of pictures and a bitstream of the video, wherein each picture comprises an alpha layer and at least one base layer;
- wherein the bitstream comprises first layer information which is utilized in a first process performed on the at least one base layer and second layer information which is utilized in a second process performed on the alpha layer.
Dependencies are inferred from the claim text.