A low-cost approximate 32-point transform architecture

Heming Sun, Zhengxue Cheng, Amir Masoud Gharehbaghi, Shinji Kimura, Masahiro Fujita

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

This paper presents an area-efficient approximate method for 32-point transform which is one of the most area-consuming parts in High Efficiency Video Coding (HEVC) applications. Compared to prior literatures, this work reduces the hardware cost of transform by 1) eliminating all the arithmetic operations of 6 least significant bits (LSB), 2) presenting a low-delay method for generating carry propagation from the remaining 5 LSBs and 3) truncating the most significant bits (MSB) according to the position of component. In the implementation of a 32-point forward transform, the experimental results show that 27% area consumption can be saved and the coding efficiency loss aroused by the approximation is only 0.044% compared with the origin.

本文言語English
ホスト出版物のタイトルIEEE International Symposium on Circuits and Systems
ホスト出版物のサブタイトルFrom Dreams to Innovation, ISCAS 2017 - Conference Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781467368520
DOI
出版ステータスPublished - 2017 9 25
イベント50th IEEE International Symposium on Circuits and Systems, ISCAS 2017 - Baltimore, United States
継続期間: 2017 5 282017 5 31

Other

Other50th IEEE International Symposium on Circuits and Systems, ISCAS 2017
CountryUnited States
CityBaltimore
Period17/5/2817/5/31

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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