McClure, Qualey & Rodack, LLP
Method for color index coding using a generalized copy previous mode
A method for color index coding of blocks in a picture is disclosed. In one embodiment for the decoder side, a current coding mode is parsed from the input coded bitstream for one or more first currently decoded pixels in a current block starting from a first starting position. If the current coding mode corresponds to a generalized copy-previous-row mode, one or more first reference pixels starting from a first starting reference position located at T-th row above the first currently decoded pixels are identified, where T is an integer equal to or greater than one. The first reference pixels starting from the first starting reference position are then used to decode the first currently decoded pixels starting from a first starting position by copying the first reference pixels starting from the first starting reference position respectively. The system may also include a copy-left mode or escape mode.
MEDIATEK INC.
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inventional inventional inventional inventional
Yu-Chen Tzu-Der Jungsun Xiaozhong Shan Jing Wang-Lin
Sun Chuang Kim Xu Liu Ye Lai