UDC 681.391, 681.3, 621.372.397

Іnteger cosine transforms for high-efficiency image and video coding

/ L.O. Hnativ // Kibernetika i sistemnyi analiz. — 2016. — Vol. 52, N 5. — P. 161–176.

Matrix methods of constructing one-norm integer cosine transforms of order-8,16 are considered. The one-norm order-8 and 16 integer transforms are proposed and their fast algorithms of low computational complexity are developed whose computational complexity is 3 to 5 time less than that in the well-known algorithms and is 10 time less than one in standard H.265. Figs.: 3. Tabl.: 9. Refs: 18 назв.

Keywords:

discrete cosine transform, integer cosine transform, factorization, fast transform, scaled transform, coding gain, compression ratio, computational complexity, video coding, Н.264, H.265, HEVC, AVS.


FULL TEXT

Author(s):

Гнатив Лев Алексеевич, кандидат техн. наук, старший научный сотрудник Института кибернетики им. В.М. Глушкова НАН Украины, Киев,
e-mail: levhnativ@gmail.com