Bibliographic Details
| Title: |
A 128 × 128 Pixel 120-dB Dynamic-Range Vision-Sensor Chip for Image Contrast and Orientation Extraction. |
| Authors: |
Rüedi, Pierre-François1 pfr@csem.ch, Heim, Pascal1 phe@csem.ch, Kaess, François1, Grenet, Eric1, Heitger, Friedrich1, Burgi, Pierre-Yves1,2, Gyger, Stève1, Nussbaum, Pascal1 |
| Source: |
IEEE Journal of Solid-State Circuits. Dec2003, Vol. 38 Issue 12, p2325-2333. 9p. 8 Black and White Photographs, 13 Diagrams, 1 Chart, 7 Graphs. |
| Subjects: |
Very large scale circuit integration, Complementary metal oxide semiconductors, Detectors, Imaging systems, Digital electronics, Solid state electronics |
| 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. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
