A computation and energy reduction technique for HEVC intra mode decision

Author

Ozcan, E. ; Kalali, E. ; Adibelli, Y. ; Hamzaoglu, I.

Author_Institution

Eng. & Natural Sci., Sabanci Univ., Istanbul, Turkey

Volume

60

Issue

4

fYear

2014

fDate

Nov. 2014

Firstpage

745

Lastpage

753

Abstract

High Efficiency Video Coding (HEVC) intra mode decision algorithm has very high computational complexity. Therefore, in this paper, a computation and energy reduction technique is proposed for reducing the amount of computations performed by Sum of Absolute Transformed Difference (SATD) calculations in HEVC intra mode decision, and therefore reducing the energy consumption of HEVC SATD calculation hardware without any PSNR loss and bit rate increase. The proposed technique reduced the energy consumption of HEVC SATD calculation hardware up to 64.6%. Therefore, it can be used in portable consumer electronics products that require a real-time HEVC encoder.

Keywords

Hadamard transforms; computational complexity; consumer electronics; energy consumption; video coding; HEVC intra mode decision; computation and energy reduction technique; computational complexity; energy consumption; high efficiency video coding; portable consumer electronics; sum of absolute transformed difference calculations; Bit rate; Computer architecture; Hardware; Prediction algorithms; Software; Software algorithms; Transforms; Energy Reduction; HEVC; Hadamard Transform; Hardware Implementation; Intra Mode Decision;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/TCE.2014.7027351

Filename

7027351