DocumentCode
2401455
Title
A Parallel Analog CMOS Signal Processor for Image Contrast Enhancement
Author
Shimmi, T. ; Kobayashi, H. ; Yagi, T. ; Sawaji, T. ; Matsumoto, T. ; Abidi, A.A.
Author_Institution
Dept. of Electr. Eng., Waseda Univ., Tokyo, Japan
fYear
1992
fDate
21-23 Sept. 1992
Firstpage
163
Lastpage
166
Abstract
A 2D analog CMOS network with a 53 × 52 array of embedded photosensors implements a convolution function approximating the Laplacian of a Gaussian. Experimental results verify that high quality contrast enhancement of images of simple objects may be obtained in analog circuits with careful circuit design. The 7.9 × 9.2 mm IC dissipates 350 mW from a 5 V power supply.
Keywords
CMOS analogue integrated circuits; Gaussian processes; convolution; image enhancement; integrated circuit design; photodetectors; Gaussian process; IC; analog circuit design; convolution function; embedded photosensors; image contrast enhancement; parallel analog CMOS signal processor; power 350 mW; power supply; voltage 5 V; Buffer storage; CMOS process; Circuits; Convolution; Filters; MOSFETs; Photoconductivity; Power supplies; Signal processing; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 1992. ESSCIRC '92. Eighteenth European
Conference_Location
Copenhagen
Print_ISBN
87-984232-0-7
Type
conf
DOI
10.1109/ESSCIRC.1992.5468271
Filename
5468271
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