Video compression with color space scalability
AssigneeSharp Laboratories of America, Inc.
InventorsLouis Joseph KEROFSKY, Kiran MISRA, Seung-Hwan KIM
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Abstract
An image decoder includes a base layer to decode at least a portion of an encoded video stream into a first image having a first image format. The image decoder can generate a color space prediction by scaling a color space of the first image from the first image format into a color space corresponding to a second image format. The image decoder includes an enhancement layer to decode the encoded video stream to generate a second image in the second image format based, at least in part, on the color space prediction.
Claims20
An image decoder comprising:
- said image decoder including a base layer to decode at least a portion of an encoded video stream into a first image having a first image format, wherein the image decoder is configured to generate a color space prediction by scaling a color space of the first image from the first image format into a color space corresponding to a second image format, and include an enhancement layer to decode the encoded video stream to generate a second image in the second image format based, at least in part, on the color space prediction.
A method for imaging decoding comprising the steps of:
- decoding, by a video decoder, at least a portion of an encoded video stream to generate a first image having a first image format;
- scaling, by the video decoder, a color space of the first image corresponding to the first image format into a color space corresponding to a second image format;
- generating, by the video decoder, a color space prediction based, at least in part, on the scaled color space of the first image;
- and
- decoding, by the video decoder, the encoded video stream into a second image having the second image format based, at least in part, on the color space prediction.
An apparatus including a video encoder comprising:
- encoding, by said video encoder, a first image having a first image format;
- scaling, by the video encoder, a color space of the encoded first image from the first image format into a color space corresponding to a second image format;
- generating, by the video encoder, a color space prediction based, at least in part, on the scaled color space of the encoded first image;
- and
- encoding, by the video encoder, a second image having the second image format based, at least in part, on the color space prediction.
Dependencies are inferred from the claim text.