Presentation 2017-03-03
Implementation of Fast Edge-preserving Smoothing Filter based on Image Gradient on a Hardware/Software Co-design System
Hiroto Komatsu, Hakaru Tamukoh, Noriaki Suetake, Takanori Koga,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Edge-preserving smoothing is the processing that smooths unnecessary small amplitude signals with keeping primal edges in an image. Generally, it takes a lot of time on power saving CPUs used in embedded systems. To cope with this problem, we implement a simple edge-preserving smoothing filter on an FPGA as a custom circuit. Furthermore, by letting the FPGA with the CPU, a hardware/software (hw/sw) co-design system is structured to increase accessibility to this circuit. In this study, our target to be implemented is a simple infinite impulse response filter based on image gradient. We convert it into a set of equations and their fixed-point description suitable for hardware implementation. The results of its implementation on the actual hw/sw system are evaluated from viewpoints of the processing time, the quantization error, etc.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) hardware/software co-design system / FPGA / edge-preserving smoothing / IIR filter
Paper # SIS2016-59
Date of Issue 2017-02-23 (SIS)

Conference Information
Committee SIS
Conference Date 2017/3/2(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Kanagawa Inst. Tech. Yokohama Office
Topics (in Japanese) (See Japanese page)
Topics (in English) Soft Computing, etc.
Chair Hirokazu Tanaka(Hiroshima City Univ.)
Vice Chair Takayuki Nakachi(NTT) / Noriaki Suetake(Yamaguchi Univ.)
Secretary Takayuki Nakachi(Toshiba) / Noriaki Suetake(Kanagawa Inst. of Tech.)
Assistant Hakaru Tamukoh(Kyushu Inst. of Tech.) / Masaaki Fujiyoshi(Tokyo Metropolitan Univ.)

Paper Information
Registration To Technical Committee on Smart Info-Media Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Implementation of Fast Edge-preserving Smoothing Filter based on Image Gradient on a Hardware/Software Co-design System
Sub Title (in English)
Keyword(1) hardware/software co-design system
Keyword(2) FPGA
Keyword(3) edge-preserving smoothing
Keyword(4) IIR filter
1st Author's Name Hiroto Komatsu
1st Author's Affiliation National Institute of Technology, Tokuyama College(NIT, Tokuyama Col.)
2nd Author's Name Hakaru Tamukoh
2nd Author's Affiliation Kyushu Institute of Technology(Kyutech)
3rd Author's Name Noriaki Suetake
3rd Author's Affiliation Yamaguchi University(Yamaguchi Univ.)
4th Author's Name Takanori Koga
4th Author's Affiliation National Institute of Technology, Tokuyama College(NIT, Tokuyama Col.)
Date 2017-03-03
Paper # SIS2016-59
Volume (vol) vol.116
Number (no) SIS-482
Page pp.pp.95-100(SIS),
#Pages 6
Date of Issue 2017-02-23 (SIS)