An extremely low-power CMOS glare sensor

Kiriti Bhagavathula; Albert H. Titus; Christopher S. Mullin

doi:10.1109/JSEN.2007.897953

An extremely low-power CMOS glare sensor

Kiriti Bhagavathula
, Albert H. Titus
, Christopher S. Mullin

Department of Biomedical Engineering

Intel
DynamicEye, Inc.

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

This paper describes a novel sense-and-respond optical sensor that is used to pinpoint glare in an image and produce a location specific response that can be used to reduce the discomfort or disability caused by the glare source. The sensor is a complimentary metal-oxide-semiconductor (CMOS) "smart" focal plane array (CFPA) chip that has 32 64 pixel resolution. Each pixel has a photodetector and simple signal processing circuitry consisting of a comparator and analog and digital readout. A pixel in the array is activated only when the light impinging on it is above a user-controllable threshold, which allows for extremely low levels of power consumption; the chip consumes approximately 51 Wof power when operating at 200 frames per second (fps) with a single 3 V dc supply. The CFPA has been successfully integrated with the microcontroller and liquid crystal display (LCD) glasses to form portable, lightweight, battery operated glare reduction glasses.

Original language	English
Pages (from-to)	1145-1151
Number of pages	7
Journal	IEEE Sensors Journal
Volume	7
Issue number	8
DOIs	https://doi.org/10.1109/JSEN.2007.897953
State	Published - Aug 2007

Access to Document

10.1109/JSEN.2007.897953

Cite this

@article{5784fb3fc5cf4c39a60b32c075368b19,

title = "An extremely low-power CMOS glare sensor",

abstract = "This paper describes a novel sense-and-respond optical sensor that is used to pinpoint glare in an image and produce a location specific response that can be used to reduce the discomfort or disability caused by the glare source. The sensor is a complimentary metal-oxide-semiconductor (CMOS) {"}smart{"} focal plane array (CFPA) chip that has 32 64 pixel resolution. Each pixel has a photodetector and simple signal processing circuitry consisting of a comparator and analog and digital readout. A pixel in the array is activated only when the light impinging on it is above a user-controllable threshold, which allows for extremely low levels of power consumption; the chip consumes approximately 51 Wof power when operating at 200 frames per second (fps) with a single 3 V dc supply. The CFPA has been successfully integrated with the microcontroller and liquid crystal display (LCD) glasses to form portable, lightweight, battery operated glare reduction glasses.",

author = "Kiriti Bhagavathula and Titus, \{Albert H.\} and Mullin, \{Christopher S.\}",

year = "2007",

month = aug,

doi = "10.1109/JSEN.2007.897953",

language = "English",

volume = "7",

pages = "1145--1151",

journal = "IEEE Sensors Journal",

issn = "1530-437X",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "8",

}

TY - JOUR

T1 - An extremely low-power CMOS glare sensor

AU - Bhagavathula, Kiriti

AU - Titus, Albert H.

AU - Mullin, Christopher S.

PY - 2007/8

Y1 - 2007/8

N2 - This paper describes a novel sense-and-respond optical sensor that is used to pinpoint glare in an image and produce a location specific response that can be used to reduce the discomfort or disability caused by the glare source. The sensor is a complimentary metal-oxide-semiconductor (CMOS) "smart" focal plane array (CFPA) chip that has 32 64 pixel resolution. Each pixel has a photodetector and simple signal processing circuitry consisting of a comparator and analog and digital readout. A pixel in the array is activated only when the light impinging on it is above a user-controllable threshold, which allows for extremely low levels of power consumption; the chip consumes approximately 51 Wof power when operating at 200 frames per second (fps) with a single 3 V dc supply. The CFPA has been successfully integrated with the microcontroller and liquid crystal display (LCD) glasses to form portable, lightweight, battery operated glare reduction glasses.

AB - This paper describes a novel sense-and-respond optical sensor that is used to pinpoint glare in an image and produce a location specific response that can be used to reduce the discomfort or disability caused by the glare source. The sensor is a complimentary metal-oxide-semiconductor (CMOS) "smart" focal plane array (CFPA) chip that has 32 64 pixel resolution. Each pixel has a photodetector and simple signal processing circuitry consisting of a comparator and analog and digital readout. A pixel in the array is activated only when the light impinging on it is above a user-controllable threshold, which allows for extremely low levels of power consumption; the chip consumes approximately 51 Wof power when operating at 200 frames per second (fps) with a single 3 V dc supply. The CFPA has been successfully integrated with the microcontroller and liquid crystal display (LCD) glasses to form portable, lightweight, battery operated glare reduction glasses.

UR - https://www.scopus.com/pages/publications/44649174121

U2 - 10.1109/JSEN.2007.897953

DO - 10.1109/JSEN.2007.897953

M3 - Article

AN - SCOPUS:44649174121

SN - 1530-437X

VL - 7

SP - 1145

EP - 1151

JO - IEEE Sensors Journal

JF - IEEE Sensors Journal

IS - 8

ER -

An extremely low-power CMOS glare sensor

Abstract

Access to Document

Other files and links

Fingerprint

Cite this