Abstract: A method and apparatus of video coding operate by receiving input data associated with a current data unit in a current picture, wherein the current data unit includes a luma component and a chroma component and the current data unit includes a luma data unit and a chroma data unit. The operation proceeds by splitting the luma data unit and the Chroma data unit using one shared tree until the luma data unit and the chroma data unit reach a stop node, encoding or decoding the stop node as a leaf CU (coding unit) if the stop node is greater than M×N for the luma component, M and N are positive integers, and signalling or parsing a prediction mode for the stop node if the stop node is smaller than or equal to M×N for the luma component.

Abstract: A method and apparatus of video coding operate by receiving input data associated with a current data unit in a current picture, wherein the current data unit includes a luma component and a chroma component and the current data unit includes a luma data unit and a chroma data unit. The operation proceeds by splitting the luma data unit and the Chroma data unit using one shared tree until the luma data unit and the chroma data unit reach a stop node, encoding or decoding the stop node as a leaf CU (coding unit) if the stop node is greater than M×N for the luma component, M and N are positive integers, and signalling or parsing a prediction mode for the stop node if the stop node is smaller than or equal to M×N for the luma component.

Abstract: A methods and apparatus for block partition in video encoding and decoding are disclosed. According to one method, a current data unit is partitioned into initial blocks using inferred splitting without split-syntax signalling. The initial blocks comprises multiple initial luma blocks and multiple initial chroma blocks, and size of the initial luma block is M×N, M and N are positive integers and the current data unit is larger than M×N for the luma component. A partition structure is determined for partitioning each initial luma block and each initial chroma block into one or more luma CUs (coding units) and one or more chroma CUs respectively. The luma syntaxes and the chroma syntaxes associated with one initial block in the current data unit are signalled or parsed, and then the luma syntaxes and the chroma syntaxes associated with one next initial block in the current data unit are signalled or parsed.

Abstract: A methods and apparatus for block partition in video encoding and decoding are disclosed. According to one method, a current data unit is partitioned into initial blocks using inferred splitting without split-syntax signalling. The initial blocks comprises multiple initial luma blocks and multiple initial chroma blocks, and size of the initial luma block is M×N, M and N are positive integers and the current data unit is larger than M×N for the luma component. A partition structure is determined for partitioning each initial luma block and each initial chroma block into one or more luma CUs (coding units) and one or more chroma CUs respectively. The luma syntaxes and the chroma syntaxes associated with one initial block in the current data unit are signalled or parsed, and then the luma syntaxes and the chroma syntaxes associated with one next initial block in the current data unit are signalled or parsed.