Presentation 2007-10-25
An Analog Moving-Object-Localization VLSI System Employing OR-Amplification of Pixel Activities
Yusuke NIKI, Yasuo MANZAWA, Satoshi KAMETANI, Tadashi SHIBATA,
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Abstract(in English) An analog VLSI for real-time moving object localization has been developed, based on binarized pixel data (activity bits) in which a new adaptive threshold determination method has been explored. The most difficult issue in this approach is the adaptive setting of the threshold for binarizing the differential image obtained by taking the frame difference in the pixel intensities. We have developed the concept of "OR-amplification, " in which the activity bits from moving object are differentiated from those due to other origins by dynamically observing the appearance of the activity bits as a function of the threshold value. The proposed hardware algorithm has been verified by computer simulations. A proof-of-concept test chip was designed in a 0.18μm single-poly quintuple-metal CMOS technology and the circuit simulation results from the test chip are presented to demonstrate the operation.
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Keyword(in English) hardware implementation / massively parallel processing / CMOS image sensor / analog VLSI / adaptive threshold determination / moving object localization
Paper # SIP2007-114,ICD2007-103,IE2007-73
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Conference Information
Committee SIP
Conference Date 2007/10/18(1days)
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Registration To Signal Processing (SIP)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An Analog Moving-Object-Localization VLSI System Employing OR-Amplification of Pixel Activities
Sub Title (in English)
Keyword(1) hardware implementation
Keyword(2) massively parallel processing
Keyword(3) CMOS image sensor
Keyword(4) analog VLSI
Keyword(5) adaptive threshold determination
Keyword(6) moving object localization
1st Author's Name Yusuke NIKI
1st Author's Affiliation Department of Frontier Informatics, Graduate School of Frontier Sciences, The University of Tokyo()
2nd Author's Name Yasuo MANZAWA
2nd Author's Affiliation Department of Frontier Informatics, Graduate School of Frontier Sciences, The University of Tokyo
3rd Author's Name Satoshi KAMETANI
3rd Author's Affiliation Department of Frontier Informatics, Graduate School of Frontier Sciences, The University of Tokyo
4th Author's Name Tadashi SHIBATA
4th Author's Affiliation Department of Frontier Informatics, Graduate School of Frontier Sciences, The University of Tokyo
Date 2007-10-25
Paper # SIP2007-114,ICD2007-103,IE2007-73
Volume (vol) vol.107
Number (no) 285
Page pp.pp.-
#Pages 6
Date of Issue