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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Expert, F. Viollet, S. Ruffier, F. |
| Copyright Year | 2011 |
| Description | Author affiliation: Institute of Movement Sciences, Biorobotics, CNRS/Aix-Marseille University, France (Expert, F.; Viollet, S.; Ruffier, F.) |
| Abstract | Considerable attention has been paid during the last decade to navigation systems based on the use of visual optic flow cues, especially for guiding autonomous robots designed to travel under specific lighting conditions. In the present study, the performances of two visual motion sensors used to measure a local 1-D angular speed, namely (i) a bio-inspired 2-pixel motion sensor and (ii) an off-the-shelf mouse sensor, were tested for the first time in a wide range of illuminance levels. The sensors' characteristics were determined here by recording their responses to a purely rotational optic flow generated by rotating the sensors mechanically and comparing their responses with an accurate rate gyro output signal. The refresh rate, a key parameter for future optic flow-based robotic applications, was also defined and tested in these two sensors. The bio-inspired 2-pixel motion sensor was found to be more accurate indoors whereas the mouse sensor was found to be more efficient outdoors. |
| Starting Page | 974 |
| Ending Page | 977 |
| File Size | 1847698 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424492909 |
| ISSN | 19300395 |
| e-ISBN | 9781424492893 |
| DOI | 10.1109/ICSENS.2011.6127002 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-10-28 |
| Publisher Place | Ireland |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Robot sensing systems Mice Visualization Optical sensors Biomedical optical imaging Motion measurement Test bench Elementary motion detector (EMD) Optic-flow Insect Vision Mouse sensor Micro-aerial vehicle (MAV) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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