15 - Grain quality evaluation by computer vision

Abstract

Grain quality is defined by several factors such as physical (moisture content, bulk density, kernel size, kernel hardness, vitreousness, kernel density and damaged kernels), safety (fungal infection, mycotoxins, insects and mites and their fragments, foreign material odour and dust) and compositional factors (milling yield, oil content, protein content, starch content and viability). This chapter discusses several computer vision technologies such as colour imaging, hyperspectral imaging, X-ray imaging and thermal imaging and reviews their applications in grain quality evaluation based on the above described grain quality factors.