Title :
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
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;
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
DOI :
10.1109/EDAC.1993.386469
