Line Prediction and Transform for Intra Coding  

作　　者：JIANG Jie GUO Baolong LAI Changcai MO Wei 

机构地区：[1]Institute of Intelligence Control and Image Engineering, Xidian University, Xi＇an 710071, China [2]Advanced Research Department, Huawei Hisilicon Technologies, Shenzhen 518129, China [3]China Electronics Standardization Institute, Beijing 100007, China）

出　　处：《Chinese Journal of Electronics》2011年第3期516-520,共5页电子学报（英文版）

基　　金：This work is supported by the National Natural Science Foundation of China （No.60802077, No.61003196）.

摘　　要：A new intra coding method based on one dimensional line prediction with different transform is presented. The H.264/AVC design includes a multidirectional spatial prediction method to reduce spatial redundancy by using neighboring samples as a predictor for all the samples in a block of data to be encoded. In the proposed intra coding method, the spatial prediction is performed line-based in horizontal or vertical direction instead of in the block-based manner used in the current H.264/AVC standard, while the block structure is either retained or one dimensional based for the residual difference transform and entropy coding process. Experimental results on CIF （352 × 288） and 720P （1280 ×720） sequences show that the new line based intra coding framework reduces the bit rate by approximately 7% and up to 12% at the same PSNR in comparison with H.264/AVC baseline profile.

关 键 词：Intra coding Line prediction Transform. 

分 类 号：TN919.81[电子电信—通信与信息系统] P642.22[电子电信—信息与通信工程]