An analog spot position coding retina for active obstacle detection

Author

Ni, Yang ; Devos, Francis ; Lavanne, Fédéric ; Lebegue, Alain

Author_Institution

Inst. Nat. des Telecommun., Evry, France

fYear

1993

fDate

22-25 Feb 1993

Firstpage

244

Lastpage

248

Abstract

An analog spot position coding (SPC) retina for active obstacle detection dedicated to the future intelligent automobile is presented. This retina integrates the entire optoelectronic portion of the active obstacle detection system, from image acquisition to laser spot position coding, on a single silicon die. The image acquisition is done by using current-source connected photodiode array and the spot position coding by a new voltage-mode winner-take-all network which can be used in many other applications. A 64-pixel prototype circuit has been designed and fabricated in CMOS 3 μm process and some test results are discussed

Keywords

CMOS analogue integrated circuits; VLSI; active vision; analogue processing circuits; image coding; image sensors; intelligent sensors; mobile robots; object detection; path planning; robot vision; 3 micron; CMOS; OTA; active obstacle detection; analog VLSI; analog spot position coding retina; current-source connected photodiode array; image acquisition; intelligent automobile; laser spot position coding; prototype circuit; voltage-mode winner-take-all network; Automobiles; CMOS process; Circuit testing; Image coding; Intelligent vehicles; Photodiodes; Prototypes; Retina; Silicon; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Design Automation, 1993, with the European Event in ASIC Design. Proceedings. [4th] European Conference on

Conference_Location

Paris

Print_ISBN

0-8186-3410-3

Type

conf

DOI

10.1109/EDAC.1993.386469

Filename

386469