A low-cost approximate 32-point transform architecture

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

doi:10.1109/ISCAS.2017.8050263

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

2 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	https://doi.org/10.1109/ISCAS.2017.8050263
出版ステータス	Published - 2017 9月 25
イベント	50th IEEE International Symposium on Circuits and Systems, ISCAS 2017 - Baltimore, United States 継続期間: 2017 5月 28 → 2017 5月 31

Other

Other	50th IEEE International Symposium on Circuits and Systems, ISCAS 2017
国/地域	United States
City	Baltimore
Period	17/5/28 → 17/5/31

ASJC Scopus subject areas

電子工学および電気工学

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10.1109/ISCAS.2017.8050263

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引用スタイル

Sun, H, Cheng, Z, Gharehbaghi, AM, Kimura, S & Fujita, M 2017, A low-cost approximate 32-point transform architecture. in IEEE International Symposium on Circuits and Systems: From Dreams to Innovation, ISCAS 2017 - Conference Proceedings., 8050263, Institute of Electrical and Electronics Engineers Inc., 50th IEEE International Symposium on Circuits and Systems, ISCAS 2017, Baltimore, United States, 17/5/28. https://doi.org/10.1109/ISCAS.2017.8050263

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title = "A low-cost approximate 32-point transform architecture",

abstract = "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.",

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Y1 - 2017/9/25

N2 - 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.

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A low-cost approximate 32-point transform architecture

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