A CMOS foveated retina chip for edge detection

Author

Kim, Hyun-Soo ; Park, Dae-Sik ; Lee, Soo-Kyung ; Kim, Jeong-Hwan ; Lee, Minho ; Shin, Jang-Kyoo

Author_Institution

Sch. of Electron. & Electr. Eng., Kyungpook Nat. Univ., Taegu, South Korea

Volume

1

fYear

2001

fDate

2001

Abstract

The human retina is a fundamental element in the nervous system and processes huge amount of image information in real time. A foveated (log-polar) structure retina chip with 8×8 pixels for edge detection has been designed and fabricated using CMOS technology. The pixel distribution follows the log-polar transform having more resolving power in the center than in the surroundings. The foveated structure has already been employed in simple image sensors for normal cameras, but never in an edge detection retina chip. The chip his been fabricated using standard 1.5 μm single-poly double-metal CMOS technology. Characteristics of the chip have been measured and its operation has been verified

Keywords

CMOS image sensors; edge detection; image processing equipment; 1.5 micron; CMOS foveated retina chip; edge detection; human nervous system; human retina; image information; image processing; log-polar pixel distribution; log-polar structure retina chip; resolving power; single-poly double-metal CMOS technology; CMOS image sensors; CMOS technology; Cameras; Humans; Image edge detection; Image sensors; Nervous system; Real time systems; Retina; Semiconductor device measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2001. Proceedings of IEEE Region 10 International Conference on Electrical and Electronic Technology

Print_ISBN

0-7803-7101-1

Type

conf

DOI

10.1109/TENCON.2001.949539

Filename

949539