Work

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

Year: 2003

Type: article

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-μm 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.

Source: IEEE Journal of Solid-State Circuits

DOI: 10.1109/jssc.2003.819169

Authors: P.-F. Ruedi, P. Heim, F. Kaess, E. Grenet, F. Heitger, P.-Y. Burgi, S. Gyger, P. Nussbaum

Institutions: Swiss Center for Electronics and Microtechnology (Switzerland), University of Geneva

Language: English

Topic: CCD and CMOS Imaging Sensors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2172704881

FWCI: 7.368

Cites: 21

Cited by: 134

Related to: 10