Title :
Directional APBT and its application in image coding
Author_Institution :
Sch. of Mech., Electr. & Inf. Eng., Shandong Univ. at Weihai, Weihai, China
Abstract :
The conventional DCT would be unlikely to be the best choice for image blocks in which some directional edges other than the vertical/horizontal ones dominate. Directional DCT framework is able to provide a better coding performance for image blocks that contain directional edges. In the light of directional DCT, directional APBT is proposed in this paper. It can also be used in image coding. Experimental results demonstrate that this framework can indeed improve the coding performance remarkably.
Keywords :
discrete cosine transforms; image coding; all phase biothogonal transform; coding performance; directional APBT; directional DCT framework; directional edges; image blocks; image coding; All Phase Biothogonal Transform (APBT); directional APBT; directional DCT; image coding;
Conference_Titel :
Signal Processing (ICSP), 2012 IEEE 11th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-2196-9
DOI :
10.1109/ICoSP.2012.6491590
