DocumentCode
2972462
Title
Phase-based 3D optical flow sensors for motion detection
Author
Wang, Albert ; Molnar, Alyosha
Author_Institution
Cornell Univ. Ithaca, Ithaca, NY, USA
fYear
2011
fDate
28-31 Oct. 2011
Firstpage
683
Lastpage
686
Abstract
We demonstrate a computationally efficient technique for sensing optical flow using angle sensitive pixels. Angle-sensitive pixels function as spatial Gabor filters as a result of their periodic response to angle. Measuring temporal derivatives in the phase response of quadrature filters recovers information about object motion. These sensors work without a lens for global motion, or, with a lens to create a 3D map of object motion under ambient light.
Keywords
Gabor filters; computerised instrumentation; flow sensors; motion estimation; object detection; optical sensors; 3D map; angle sensitive pixels; motion detection; periodic response; phase-based 3D optical flow sensors; quadrature filters; spatial Gabor filters; temporal derivative measurement; Diffraction gratings; Lenses; Optical imaging; Optical sensors; Optical variables measurement; Visualization;
fLanguage
English
Publisher
ieee
Conference_Titel
Sensors, 2011 IEEE
Conference_Location
Limerick
ISSN
1930-0395
Print_ISBN
978-1-4244-9290-9
Type
conf
DOI
10.1109/ICSENS.2011.6127290
Filename
6127290
Link To Document