Methods and apparatus for improvement of transform information coding according to intra chroma cross-component prediction model in video coding

Abstract

A method and apparatus for video coding using coding tools including one or more cross component models related modes. According to this method, a prediction candidate list comprising one or more inherited CCP (Cross-Component Prediction) candidates is determined, wherein CCM (Cross-Component Model) information associated with at least one CCP candidate is stored in addition to one or more inherited model parameters of said at least one CCP candidate. The second-colour block is encoded or decoded by using information comprising the prediction candidate list, wherein when said at least one CCP candidate is selected for the current block, prediction data for the second-colour block are generated by applying said one or more inherited model parameters of said at least one CCP candidate along with the CCM information to reconstructed first-colour block.