Method and means for detecting internal larval infestation in granular material

摘要

A method for detecting internal larval infestation in granular material comprises the steps of : (a) creating an image of grain kernels in the near Infra-Red region; (b) applying a mask to the image to exclude interference on the outer reaches of the kernel; (c) forming a model kernel by applying a median filter and slightly enlarging the resulting approximate model; (d) comparing the masked image with the model kernel to obtain a difference image; and (c) applying a threshold to difference image to determine larval infestation.