Title :
A wide dynamic range CMOS imager with extended shunting inhibition image processing capabilities
Author :
Boussaïd, Farid ; Bermak, Amine ; Bouzerdoum, Abdesselam
Author_Institution :
Sch. of Eng. & Math., Edith Cowan Univ., Perth, WA, Australia
Abstract :
A CMOS imager based on a novel mixed-mode VLSI implementation of biologically inspired shunting inhibition vision models is presented. It can achieve a wide range of image processing tasks such as image enhancement or edge detection via a programmable shunting inhibition processor. Its most important feature is a gain control mechanism allowing local and global adaptation to the mean input light intensity. This feature is shown to be very suitable for wide dynamic range imagers
Keywords :
CMOS image sensors; VLSI; biomimetics; edge detection; gain control; image enhancement; mixed analogue-digital integrated circuits; CMOS imager; biological vision system; dynamic range; edge detection; gain control; global adaptation; image enhancement; image processing; local adaptation; mixed-mode VLSI circuit; programmable processor; shunting inhibition model; Biological system modeling; CMOS process; CMOS technology; Differential equations; Dynamic range; Image edge detection; Image enhancement; Image processing; Semiconductor device modeling; Sensor arrays;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921387
