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Spherical transform of fruit images for on?line defect extraction of mass objects
Home
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Spherical transform of fruit images for on?line defect extraction of mass objects
Spherical transform of fruit images for on?line defect extraction of mass objects
YT
Yang Tao
Yang Tao
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1 February 1996
journal article
Published by
SPIE-Intl Soc Optical Eng
in
Optical Engineering
Vol. 35
(2)
,
344
https://doi.org/10.1117/1.600902
Abstract
Defects on spherical curved objects cannot be easily identified because of the object image boundary effect. Spherical transform methods are developed to solve the problem and successfully applied in an automated defect sorter. A spherical transform is obtained by compensating the intensity gradience on curved objects. Defects below the background level can be extracted through a preservation transform. The defect extraction is enabled by a uniformly distributed plane image through two‐step transformations and the defect position is determined by allocation process. The results show the effectiveness of the processing methods for the high‐speed on‐line defect identification on fruit packing lines. ©
1996 Society of Photo−Optical Instrumentation Engineers.
Keywords
SPHERICAL TRANSFORM
DEFECT EXTRACTION
FRUIT
LINE DEFECT
CURVED OBJECTS
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Open Access
Cited by 24 articles