Title: Apple ripeness detection using hyperspectral laser scatter imaging
Authors: Van Beers, Robbe ×
Aernouts, Ben
De Baerdemaeker, Josse
Saeys, Wouter #
Issue Date: 17-May-2013
Publisher: SPIE Digital Library
Conference: Sensing Technologies for Biomaterial, Food and Agriculture (SetBio) edition:1 location:Yokohama, Japan date:23-25 April 2013
Abstract: A hyperspectral laser scatter imaging (HLSI) system based on a supercontinuum laser in combination with a monochromator has been developed for contactless and non-destructive measuring the ripeness of Braeburn apples. Reflectance images were obtained by a CCD camera at 91 different wavelengths ranging from 550 nm to 1000 nm and transformed into reflectance profiles. A linear function was fitted to the logarithm (log10) of the extracted profiles, resulting in an intercept and a slope. These two parameters were then correlated with apple ripeness parameters such as firmness and soluble solids content (SSC) measured by the reference, destructive methods. Preliminary results showed the potential of slope and intercept to be used as a ripeness indicator. Moreover, during fruit ripening, the new HLSI measurement technique clearly showed the degradation of chlorophyll over time.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Division of Mechatronics, Biostatistics and Sensors (MeBioS)
× corresponding author
# (joint) last author

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