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Speed measurement of spherical objects using an off-the-shelf digital camera

[+] Author Affiliations
Huei-Yung Lin

National Chung Cheng University, Department of Electrical Engineering, 168, University Road, Min-Hsiung, Chia-Yi, 621, Taiwan

Chia-Hong Chang

National Chung Cheng University, Department of Electrical Engineering, 168, University Road, Min-Hsiung, Chia-Yi, 621, Taiwan

J. Electron. Imaging. 17(3), 033015 (July 01, 2008). doi:10.1117/1.2952845
History: Received August 18, 2007; Revised March 07, 2008; Accepted March 26, 2008; Published July 01, 2008
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Motion blur is a result of finite acquisition time of practical cameras and the relative motion between the camera and moving objects. We present a method for speed measurement of spherical objects using motion blurred images captured by a digital camera. The object is assumed under a straight line uniform-velocity motion, and the speed is calculated according to the imaging geometry and blur extent estimates. We have established a link between the motion blur information of a 2-D image and the speed information of a moving object. Experimental results are presented for the real-scene images.

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Citation

Huei-Yung Lin and Chia-Hong Chang
"Speed measurement of spherical objects using an off-the-shelf digital camera", J. Electron. Imaging. 17(3), 033015 (July 01, 2008). ; http://dx.doi.org/10.1117/1.2952845


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