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- W2003175420 abstract "Scab (Fusarium head blight) is a disease that causes wheat kernels to be shriveled, underweight, and difficult to mill. Scab is also a health concern because of the possible concomitant production of the mycotoxin deoxynivalenol. Current official inspection procedures entail manual human inspection. A study was undertaken to explore the possibility of detecting scab-damaged wheat kernels by machine vision. A custom-made hyperspectral imaging system, possessing a wavelength range of 425 to 860 nm with neighboring bands 3.7 nm apart, a spatial resolution of 0.022 mm<SUP>2</SUP>/pixel, and 16-bit per pixel dynamic range, gathered images of non-touching kernels from three wheat varieties. Each variety was represented by 32 normal and 32 scab-damaged kernels. From a search of wavelengths that could be used to separate the two classes (normal vs. scab), a linear discriminant function was constructed from the best R((lambda) <SUB>1</SUB>)/R((lambda) <SUB>2</SUB>), based on the assumption of a multivariate normal distribution for each class and the pooling of the covariance error that averaged between 2 and 17%, dependent on wheat variety. With expansion to the testing of more varieties, a two-to-four wavelength machine vision system appears to be a feasible alternative to manual inspection." @default.
- W2003175420 created "2016-06-24" @default.
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- W2003175420 date "2000-12-29" @default.
- W2003175420 modified "2023-10-06" @default.
- W2003175420 title "<title>Hyperspectral imaging for detection of scab in wheat</title>" @default.
- W2003175420 doi "https://doi.org/10.1117/12.411752" @default.
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