Mixed-mode CMOS implementation of 2-D pseudo-Gabor wavelets for facial feature extraction
- Spencer, R.G.; Sanchez-Sinencio, E.
Editor(s): Ramirez-Angulo, J.
Analog & Mixed-Signal Center, Texas A&M; Univ., College Station, TX, USA
This paper appears in: Circuits and Systems, 2000. 42nd Midwest Symposium on
On page(s): 559 - 562 vol. 1
8-11 Aug. 1999
Las Cruces, NM, USA
2000
Volume: 1
ISBN: 0-7803-5491-5
IEEE Catalog Number: 99CH36356
Number of Pages: 2 vol. (xl+1150)
References Cited: 3
INSPEC Accession Number: 6788781

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Abstract:
A CMOS implementation of 2-D pseudo-Gabor wavelets is presented. The mixed-mode circuitry, which is a generalization of the R-2R ladder D/A converter, is capable of generating analog features that are useful for face recognition. Experimental results from a 9/spl times/9 pipelined array fabricated in a 2 micron CMOS process are presented.

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Index Terms:
mixed analogue-digital integrated circuits; CMOS integrated circuits; wavelet transforms; face recognition; feature extraction; digital-analogue conversion; mixed-mode CMOS implementation; 2D pseudo-Gabor wavelets; facial feature extraction; R-2R ladder D/A converter; pipelined array