An active pixel CMOS separable transform image sensor

Yu M. Chi; Adeel Abbas; Shantanu Chakrabartty; Gert Cauwenberghs

doi:10.1109/ISCAS.2009.5117997

An active pixel CMOS separable transform image sensor

Yu M. Chi, Adeel Abbas, Shantanu Chakrabartty, Gert Cauwenberghs

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

21 Scopus citations

Abstract

This paper presents a 128x128 charge-mode CMOS imaging sensor that computes separable transforms directly on the focal plane. The pixel is a unique extension of the widely reported Active Pixel Sensor (APS) cell. By capacitively coupling across an array of such cells onto switched capacitor circuits, computation of any unitary 2-D transform that is separable into inner and outer products is possible. This includes the Walsh, Hadamard and Haar basis functions. This scheme offers several advantages including multiresolution imaging, inherent de-noising, compressive sampling and lower integration voltage and faster readout. The chip was implemented on a 0.5μm CMOS process and measures 9mm² in MOSIS' submicron design rules.

Original language	English
Title of host publication	2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Pages	1281-1284
Number of pages	4
DOIs	https://doi.org/10.1109/ISCAS.2009.5117997
State	Published - 2009
Event	2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009 - Taipei, Taiwan, Province of China Duration: May 24 2009 → May 27 2009

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)	0271-4310

Conference

Conference	2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Country/Territory	Taiwan, Province of China
City	Taipei
Period	05/24/09 → 05/27/09

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10.1109/ISCAS.2009.5117997

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title = "An active pixel CMOS separable transform image sensor",

abstract = "This paper presents a 128x128 charge-mode CMOS imaging sensor that computes separable transforms directly on the focal plane. The pixel is a unique extension of the widely reported Active Pixel Sensor (APS) cell. By capacitively coupling across an array of such cells onto switched capacitor circuits, computation of any unitary 2-D transform that is separable into inner and outer products is possible. This includes the Walsh, Hadamard and Haar basis functions. This scheme offers several advantages including multiresolution imaging, inherent de-noising, compressive sampling and lower integration voltage and faster readout. The chip was implemented on a 0.5μm CMOS process and measures 9mm2 in MOSIS' submicron design rules.",

author = "Chi, {Yu M.} and Adeel Abbas and Shantanu Chakrabartty and Gert Cauwenberghs",

year = "2009",

doi = "10.1109/ISCAS.2009.5117997",

language = "English",

isbn = "9781424438280",

series = "Proceedings - IEEE International Symposium on Circuits and Systems",

pages = "1281--1284",

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note = "2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009 ; Conference date: 24-05-2009 Through 27-05-2009",

}

Chi, YM, Abbas, A, Chakrabartty, S & Cauwenberghs, G 2009, An active pixel CMOS separable transform image sensor. in 2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009., 5117997, Proceedings - IEEE International Symposium on Circuits and Systems, pp. 1281-1284, 2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009, Taipei, Taiwan, Province of China, 05/24/09. https://doi.org/10.1109/ISCAS.2009.5117997

An active pixel CMOS separable transform image sensor. / Chi, Yu M.; Abbas, Adeel; Chakrabartty, Shantanu et al.
2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009. 2009. p. 1281-1284 5117997 (Proceedings - IEEE International Symposium on Circuits and Systems).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - This paper presents a 128x128 charge-mode CMOS imaging sensor that computes separable transforms directly on the focal plane. The pixel is a unique extension of the widely reported Active Pixel Sensor (APS) cell. By capacitively coupling across an array of such cells onto switched capacitor circuits, computation of any unitary 2-D transform that is separable into inner and outer products is possible. This includes the Walsh, Hadamard and Haar basis functions. This scheme offers several advantages including multiresolution imaging, inherent de-noising, compressive sampling and lower integration voltage and faster readout. The chip was implemented on a 0.5μm CMOS process and measures 9mm2 in MOSIS' submicron design rules.

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Y2 - 24 May 2009 through 27 May 2009

ER -

An active pixel CMOS separable transform image sensor

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