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End-Grain Of 10 North American Hardwoods, Lopes Dercilio Verly Junior, Greg W. Burgreen, Edward D. Entsminger
End-Grain Of 10 North American Hardwoods, Lopes Dercilio Verly Junior, Greg W. Burgreen, Edward D. Entsminger
College of Forest Resources Publications and Scholarship
This technical note determines the feasibility of using an InceptionV4_ResNetV2 convolutional neural network (CNN) to correctly identify hardwood species from macroscopic images. The method is composed of a commodity smartphone fitted with a 14× macro lens for photography. The end-grains of ten different North American hardwood species were photographed to create a dataset of 1709 images. The stratified 5-fold cross-validation machine-learning method was used, in which the number of testing samples varied from 341 to 342. Data augmentation was performed on-the-fly for each training set by rotating, zooming, and flipping images. It was found that the CNN could correctly identify …