Title :
Fast 15x15 Transform for Image and Video Coding Applications
Author :
Reznik, Yuriy A. ; Chivukula, Ravi K.
Author_Institution :
Qualcomm Inc., San Diego, CA
Abstract :
This paper presents fast 15times15 transform for image and video coding applications. We note, that our proposed transform is significantly less complex than DCT-II of nearest dyadic size N=16, for which best known factorization [2] requires 31 multiplications and 81 additions. In comparison with H.264-type cascade of 4-point transforms, our proposed algorithm is slightly higher in complexity, but offers better coding gain.
Keywords :
discrete cosine transforms; video coding; DCT; factorization method; fast 15times15 transform; image coding; video coding; Application specific integrated circuits; Data compression; Discrete cosine transforms; Discrete transforms; Tellurium; Video coding; DCT; FFT; factorization; fast algorithms; image coding; video coding;
Conference_Titel :
Data Compression Conference, 2009. DCC '09.
Conference_Location :
Snowbird, UT
Print_ISBN :
978-1-4244-3753-5
DOI :
10.1109/DCC.2009.81
