CMOS imager with on-chip temporal filtering for motion pre-processing

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Publication Type Journal Article
School or College College of Engineering
Department Electrical & Computer Engineering
Creator Harrison, Reid R.
Other Author Gopalan, A.
Title CMOS imager with on-chip temporal filtering for motion pre-processing
Date 2002-01-01
Description Robust motion detection algorithms such as the motion energy model require temporal filtering at the pixel level. We have designed and tested a CMOS imager with integrated, pixel-level temporal filtering necessary for motion detection. This temporal filtering enhances transients and provides a delayed and non-delayed channel for each pixel in the array. By varying bias currents on the chip, we are able to control the time constant of continuous-time low-pass filters that set the delay. By varying a reset switching frequency, we can control the high-pass filter time constant which determines the time course of transient enhancement. Operation primarily in weak inversion results in a low-power sensor well suited for integration into a motion processing system. We have constructed a 16 x 16 temporal processing array in a 0.5μm CMOS process.
Type Text
Publisher Institute of Electrical and Electronics Engineers (IEEE)
Journal Title IEEE International Symposium on Circuits and Systems
Volume 2
First Page 336
Last Page 9
Language eng
Bibliographic Citation Gopalan, A., & Harrison, R. R. (2002). CMOS imager with on-chip temporal filtering for motion pre-processing. Proceedings of the 2002 IEEE International Symposium on Circuits and Systems (ISCAS 2002), 2, 336-9.
Rights Management (c) 2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Format Medium application/pdf
Format Extent 400,697 byres
Identifier ir-main,13992
ARK ark:/87278/s6z32gzb
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2021-05-06
ID 704350
Reference URL https://collections.lib.utah.edu/ark:/87278/s6z32gzb
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