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Proceedings Paper

Vision robot with rotational camera for searching ID tags
Author(s): Nobutaka Kimura; Toshio Moriya
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Paper Abstract

We propose a new concept, called "real world crawling", in which intelligent mobile sensors completely recognize environments by actively gathering information in those environments and integrating that information on the basis of location. First we locate objects by widely and roughly scanning the entire environment with these mobile sensors, and we check the objects in detail by moving the sensors to find out exactly what and where they are. We focused on the automation of inventory counting with barcodes as an application of our concept. We developed "a barcode reading robot" which autonomously moved in a warehouse. It located and read barcode ID tags using a camera and a barcode reader while moving. However, motion blurs caused by the robot's translational motion made it difficult to recognize the barcodes. Because of the high computational cost of image deblurring software, we used the pan rotation of the camera to reduce these blurs. We derived the appropriate pan rotation velocity from the robot's translational velocity and from the distance to the surfaces of barcoded boxes. We verified the effectiveness of our method in an experimental test.

Paper Details

Date Published: 14 February 2008
PDF: 10 pages
Proc. SPIE 6813, Image Processing: Machine Vision Applications, 681302 (14 February 2008); doi: 10.1117/12.767069
Show Author Affiliations
Nobutaka Kimura, Hitachi, Ltd. (Japan)
Toshio Moriya, Hitachi, Ltd. (Japan)

Published in SPIE Proceedings Vol. 6813:
Image Processing: Machine Vision Applications
Kurt S. Niel; David Fofi, Editor(s)

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