A CMOS imager with real-time frame differencing and centroid computation

Author

Blum, Richard A. ; Wilson, Charles S. ; Hasler, Paul E. ; DeWeerth, Stephen P.

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

3

fYear

2002

fDate

2002

Abstract

We present a novel imager that computes real-time frame difference as well as several image statistics. We desire to use a network of these imagers connected to microprocessors for computation on images. To reduce the bandwidth to the processors, each imager has on-chip computation to determine relevant information and sends only that to the microprocessors. We have developed an imager that uses simple analog elements to implement the desired functions. We present experimental results.

Keywords

CMOS image sensors; analogue processing circuits; intelligent sensors; real-time systems; CMOS imager; analog elements; bandwidth reduction; distributed image analysis systems; image statistics. computation; low power image analysis systems; microprocessors; nonvolatile storage; pixel design; real-time centroid computation; real-time frame difference computation; smart sensors; Bandwidth; Bidirectional control; Biology computing; CMOS technology; Circuits; Computer networks; Diodes; Photodiodes; Pixel; Statistics;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on

Print_ISBN

0-7803-7448-7

Type

conf

DOI

10.1109/ISCAS.2002.1010227

Filename

1010227