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Improving angle-of-view for a 1-D sensing application by using a 2-D optical sensor in "cylindrical" mode
Linköping University, Department of Electrical Engineering, Integrated Circuits and Systems. Linköping University, Faculty of Science & Engineering. Uppsala Univ, Dept Elect Engn, Uppsala, Sweden.
Linköping University, Department of Electrical Engineering, Information Coding. Linköping University, Faculty of Science & Engineering.
Swedish Natl Forens Ctr, Dept Chem & Technol, Linkoping, Sweden.
2021 (English)In: IEEE Sensors Letters, E-ISSN 2475-1472, Vol. 5, no 10, article id 6002304Article in journal (Refereed) Published
Abstract [en]

To further develop a low-power low-cost optical motion detector for use with traffic detection under dark and daylight conditions, we have developed and verified a procedure to use a Near Sensor Image Processing (NSIP) programmable 2-D optical sensor in a "1-D mode" to achieve the effect of using a cylindrical lens, thus improving the angle-of-view (AOV), the sensitivity, and usefulness of the sensor. Using an existing 256 x 256 element sensor in an innovative way, the AOV was increased from 0.4 to 21.3 in the vertical direction while also improving the sensitivity. The details of the sensor hardware architecture are described in detail and pseudo code for programming the sensor is discussed. The results were used to demonstrate the extraction of Local Extreme Points (LEPs) used for Time-To-Impact (TTI) calculations to estimate the speed of an approaching vehicle.

Place, publisher, year, edition, pages
IEEE, 2021. Vol. 5, no 10, article id 6002304
Keywords [en]
Sensor applications; angle-of-view (AOV); CMOS; image processing; microcontroller; sensor; sensor applications
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:liu:diva-179757DOI: 10.1109/lsens.2021.3115051ISI: 000708937400002OAI: oai:DiVA.org:liu-179757DiVA, id: diva2:1599459
Available from: 2021-09-30 Created: 2021-09-30 Last updated: 2021-11-01

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Johansson, TedForchheimer, Robert

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CiteExportLink to record
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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
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Language
  • de-DE
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  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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