A 128 x 128 pixel 120-db dynamic-range vision-sensor chip for image contrast and orientation extraction

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Title		A 128 x 128 pixel 120-db dynamic-range vision-sensor chip for image contrast and orientation extraction
Authors		Ruedi, P.-F. Heim, P. Kaess, F. Grenet, E. Heitger, F. Burgi, Pierre-Yves Gyger, S. Nussbaum, P.
Published in		IEEE Journal of Solid-State Circuits. 2003, vol. 38, no. 12, p. 2325-2333
Abstract		A vision sensor for low-cost, fast, and robust vision systems is described. The sensor includes an on-chip analog computation of contrast magnitude and direction of image features. A temporal ordering of this information according to the contrast magnitude is used to reduce the amount of data delivered. This sensor, realized in a 0.5- m two-poly three-metal technology, features a contrast sensitivity of 2%, a contrast direction precision of 3 , and an illumination dynamic range of 120 dB. Applications with uncontrolled lighting conditions are ideal for this sensor.
Keywords		Analog VLSI — CMOS vision sensor — Contrast computation — Early vision — Orientation computation — Temporal coding
Identifiers		DOI: 10.1109/JSSC.2003.819169
Full text		Article (Published version) (965 Kb) - Limited access to UNIGE Other version: http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=1253880
Citation (ISO format)		RUEDI, P.-F. et al. A 128 x 128 pixel 120-db dynamic-range vision-sensor chip for image contrast and orientation extraction. In: IEEE Journal of Solid-State Circuits, 2003, vol. 38, n° 12, p. 2325-2333. https://archive-ouverte.unige.ch/unige:17768

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Deposited on : 2011-12-09

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