Method and apparatus for video coding using adaptive chroma space conversion
AssigneesHyundai Motor Company, Kia Corporation, Research & Business Foundation Sungkyunkwan University
InventorsByeung Woo Jeon, Jee Yoon Park, Jee Hwan Lee, Jin Heo, Seung Wook Park
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Abstract
A video coding method and apparatus select an optimal method from among various chrominance space conversion methods for the current chroma block's original signals, predictors, or residual signals, based on correlations between chroma channel components. The video coding method and the apparatus perform chrominance space conversion of Cb and Cr components using the selected method.
Claims19
A method performed by a video decoding device for inversely converting a current chroma block, the method comprising:
- obtaining two converted signals that are generated by a chrominance space conversion by a video encoding device;
- obtaining inverse conversion information corresponding to conversion information that is utilized for the chrominance space conversion;
- and
- generating signals in two chroma channels of the current chroma block from the two converted signals by applying an inverse chrominance space conversion that is based on the inverse conversion information.
A method performed by a video encoding device for converting a current chroma block, the method comprising:
- obtaining signals in two chroma channels of the current chroma block;
- determining conversion information;
- generating two converted signals from the signals in the two chroma channels by applying a chrominance space conversion that is based on the conversion information;
- and
- encoding the conversion information.
A computer-readable recording medium storing a bitstream generated by a video encoding method, the video encoding method comprising:
- obtaining signals in two chroma channels of a current chroma block;
- determining conversion information;
- generating two converted signals from the signals in the two chroma channels by applying a chrominance space conversion that is based on the conversion information;
- and
- encoding the conversion information.
Dependencies are inferred from the claim text.