Fast location of thermal target with low offset and spatial filter of winner-take-all circuit

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A new modified infrared tracking sensor array with spatial filter is proposed, which identifies the locations and sizes of thermal object efficiently with the winner-take-all (WTA) circuit and a low offset correlated double sampling (CDS) circuit. The winner-take-all (WTA) circuit is used in combination with active readout circuit for thermopile array. In this circuit, thermal image intensity has been chosen for the input saliency map. The removal process is performed by zeroing the values of the thermal image background intensity levels, so only the potential thermal objects of interest are compared by the WTA. The offset reduction with CDS technique enhances the sensitivity of winner-take-all (WTA) circuit and shows a sharp selectivity which makes it possible to pick up only one winner pixel from each thermal object. In order to simulate and present the infrared thermal sensor array in this paper, the sensor array is integrated by using a 2P4M 0.35μm standard CMOS technology. This proposed architecture shows a high resolution with two orders higher than the circuits without CDS. The results have shown that integrated thermopile array with WTA and CDS can approach a high level of development, reliability and easy for high accuracy infrared tracking applications.

Original languageEnglish
Title of host publicationManufacturing Science and Engineering I
Pages4371-4374
Number of pages4
DOIs
Publication statusPublished - 2010 Apr 22
Event2009 International Conference on Manufacturing Science and Engineering, ICMSE 2009 - Zhuhai, China
Duration: 2009 Dec 262009 Dec 28

Publication series

NameAdvanced Materials Research
Volume97-101
ISSN (Print)1022-6680

Other

Other2009 International Conference on Manufacturing Science and Engineering, ICMSE 2009
CountryChina
CityZhuhai
Period09-12-2609-12-28

Fingerprint

Networks (circuits)
Sensor arrays
Thermopiles
Sampling
Infrared radiation
Hot Temperature
Pixels

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Wang, J. Q., Chen, S. J., & Shen, C-H. (2010). Fast location of thermal target with low offset and spatial filter of winner-take-all circuit. In Manufacturing Science and Engineering I (pp. 4371-4374). (Advanced Materials Research; Vol. 97-101). https://doi.org/10.4028/www.scientific.net/AMR.97-101.4371
Wang, Jun Qi ; Chen, Shu Jung ; Shen, Chih-Hsiung. / Fast location of thermal target with low offset and spatial filter of winner-take-all circuit. Manufacturing Science and Engineering I. 2010. pp. 4371-4374 (Advanced Materials Research).
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Wang, JQ, Chen, SJ & Shen, C-H 2010, Fast location of thermal target with low offset and spatial filter of winner-take-all circuit. in Manufacturing Science and Engineering I. Advanced Materials Research, vol. 97-101, pp. 4371-4374, 2009 International Conference on Manufacturing Science and Engineering, ICMSE 2009, Zhuhai, China, 09-12-26. https://doi.org/10.4028/www.scientific.net/AMR.97-101.4371

Fast location of thermal target with low offset and spatial filter of winner-take-all circuit. / Wang, Jun Qi; Chen, Shu Jung; Shen, Chih-Hsiung.

Manufacturing Science and Engineering I. 2010. p. 4371-4374 (Advanced Materials Research; Vol. 97-101).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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