Bio-imaging & Sensing Center

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Past Projects

Quality Evaluation of Edible Beans

A sensing system was developed to evaluate the quality of beans, some of the main characters of the system was to be able to detect

  • Color difference
  • Cracks
  • Foreight objects and broken beans

 

 

 

Crack detection techniques

 

 

 

 

 

Results

  • Overall accuracy of 94%(187/200) for fluorescent techniques as compared to 71% obtained for dyed beans using conventional light imaging

  • Laser system provided 98% accuracy in detecting cracks

 

 

 

Self-organizing map combined with a fuzzy clustering for color image segmentation of edible beans

 

 

objectives

To efficiently detect beans (acceptable, broken, small and damaged), highly undesirable foreign materials, and stones in a white background

 

 

 

 

 

 

 

 

 

 

Results

A Kohonen layer of size 32x32 with a "rectangular" topology and a "bubble" neighborhood function, an average of 99.31% of the pixels of the six groups were correctly binarized. The spatial thresholding segmentation procedure provided an average PCMP (percentage of correctly matched pixels) of only 89.71%.

 

 

 

 

 

 

 

 

 

 

 

 

Integrated Product

 

 

 

 

 

 

 

 

 

 

 

Copyright © 2004 [Bio-imaging & Sensing Center]. All rights reserved.
Revised: September 21, 2004