Fluorescence hyperspectral imaging technique for foreign substance detection on fresh-cut lettuce

초록

BACKGROUNDNon-destructive methods based on fluorescence hyperspectral imaging (HSI) techniques were developed to detect worms on fresh-cut lettuce. The optimal wavebands for detecting the worms were investigated using the one-way ANOVA and correlation analyses. RESULTSThe worm detection imaging algorithms, RSI-I(492-626)/492, provided a prediction accuracy of 99.0%. The fluorescence HSI techniques indicated that the spectral images with a pixel size of 1x1mm had the best classification accuracy for worms. CONCLUSIONThe overall results demonstrate that fluorescence HSI techniques have the potential to detect worms on fresh-cut lettuce. In the future, we will focus on developing a multi-spectral imaging system to detect foreign substances such as worms, slugs and earthworms on fresh-cut lettuce. (c) 2017 Society of Chemical Industry

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