Title :
New Accordion based video compression approach
Author :
Ouni, Tarek ; Abid, Mohamed
Author_Institution :
Nat. Eng. Sch. of SFAX, Sfax, Tunisia
Abstract :
In this paper, we propose a new approach based on the accordion transform that tends to exploit the both intra and inter frame correlation. The major novelty of the new approach compared to classic one is the dynamic strategy of video frames scan. The direction of the frames scan will depends on a gradient based algorithm which tries to predict the direction where minimal pixels intensities changes are recorded. Both objective (PSNR) and subjective quality evaluation prove the improvement of the compression efficiency, especially in fast and uniform motion video sequences which usually represents the weakness of the classical approach.
Keywords :
correlation methods; data compression; gradient methods; image motion analysis; image sequences; transforms; video coding; accordion based video compression; accordion transform; compression efficiency improvement; direction prediction; gradient based algorithm; inter frame correlation; intra frame correlation; minimal pixels intensities changes; motion video sequences; subjective quality evaluation; video frames scan strategy; Correlation; Image coding; Information processing; Redundancy; Three dimensional displays; Transforms; Video sequences; Accordion; compression; correlation; gradient; video;
Conference_Titel :
Image Information Processing (ICIIP), 2011 International Conference on
Conference_Location :
Himachal Pradesh
Print_ISBN :
978-1-61284-859-4
DOI :
10.1109/ICIIP.2011.6108867