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A CMOS imager for light blobs detection and processing

  • J. L. Gonzalez
  • , D. Sadowski
  • , K. V.I.S. Kaler
  • , M. P. Mintchev
  • , O. Yadid-Pecht

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Biomedical optical impedance sensors involve image processing of light blobs to extract information regarding a process such as pressure. These sensors utilize a light source to illuminate an imager chip. The edges of the light blob, its diameter and location are parameters of interest to characterize pressure dynamics. CMOS technology allows the capture and processing of an image on a single chip. However, specialized imagers optimized for extracting dynamic information from light blobs for this application have not been proposed. A CMOS active pixel sensor (APS) imager capable of processing all parameters of interest in a light blob is presented. Innovative, efficient and easy-to-implement techniques for cross-sectional diameter estimation and edge detection are proposed. The simulation results showed the feasibility of the proposed design. This chip was designed using 0.18μ technology and is currently being fabricated. It operates at 1.8 Volts.

Original languageEnglish
Title of host publicationProceedings - IEEE International Symposium on Circuits and Systems 2005, ISCAS 2005
PublisherInstitute of Electrical and Electronics Engineers
Pages568-571
Number of pages4
ISBN (Print)9780780388345
DOIs
StatePublished - 1 Jan 2005
Externally publishedYes
Event2005 IEEE International Symposium on Circuits and Systems, ISCAS 2005 - Kobe, Japan
Duration: 23 May 200526 May 2005

Publication series

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

Conference

Conference2005 IEEE International Symposium on Circuits and Systems, ISCAS 2005
Country/TerritoryJapan
CityKobe
Period23/05/0526/05/05

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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