IEEE Trans Image Process - Optimal compression plane for efficient video coding.

Tópicos

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Resumo

All existing video coding standards developed so far deem video as a sequence of natural frames (formed in the XY plane), and treat spatial redundancy (redundancy along X and Y directions) and temporal redundancy (redundancy along T direction) differently and separately. In this paper, we investigate into a new compression (redundancy reduction) method for video in which the frames are allowed to be formed in a non-XY plane. We are to exploit fuller extent of video redundancy, and propose an adaptive optimal compression plane determination process to be used as a preprocessing step prior to any standard video coding scheme. The essence of the scheme is to form the frames in the plane formed by two axes (among X, Y, and T) corresponding to signal correlation evaluation, which enables better prediction (therefore better compression). In spite of the simplicity of the proposed method, it can be used for both lossless and lossy compression, and with and without interframe prediction. Extensive experimental results show that the new coding method improves the performance of the video coding for a number of coding methods (inclusive of lossless and near-lossless Motion JPEG-LS, Motion JPEG, Motion JPG2K, H.264 intraonly profile, and H.264) and videos with different visual content.

Resumo Limpo

exist video code standard develop far deem video sequenc natur frame form xy plane treat spatial redund redund along x y direct tempor redund redund along t direct differ separ paper investig new compress redund reduct method video frame allow form nonxi plane exploit fuller extent video redund propos adapt optim compress plane determin process use preprocess step prior standard video code scheme essenc scheme form frame plane form two axe among x y t correspond signal correl evalu enabl better predict therefor better compress spite simplic propos method can use lossless lossi compress without interfram predict extens experiment result show new code method improv perform video code number code method inclus lossless nearlossless motion jpegl motion jpeg motion jpgk h intraon profil h video differ visual content

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