Title
Ultrasonic scanning, imaging and recognition of bottles
Author
Breeuwer, R.
Technisch Physische Dienst TNO - TH
Publication year
1989
Abstract
A compact machine has been developed to take in returnable bottles. Using ultrasonics, it recognizes up to 150 different bottles. A teaching facility allows store personnel to add new types of bottles to the reference set. The ultrasonic system operates in air and employs a strongly focusing parabolic acoustical mirror in combination with a linear array of three transducers to image the bottle. To reduce artifacts, phase-insensitive detection is incorporated. Automatic calibration helps to achieve the relatively high accuracy required. Dedicated recognition software attempts to match the present bottle to one in the reference set. The ultrasonic system and recognition software are discussed.
Subject
Bottles
Ultrasonic devices
Computer aided analysis
Grocery stores
Recognition software
Returnable bottles
Ultrasonic scanning
Imaging techniques
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http://resolver.tudelft.nl/uuid:63f8e7f4-bad1-4286-bc74-05c47fd86dae
TNO identifier
230996
Publisher
IEEE, Piscataway, NJ, US
ISSN
0090-5607
Source
IEEE 1989 Ultrasonics Symposium, 3-6 October 1989, Montreal, Quebec, Canada, 1, 635-638
Document type
conference paper