[4H3-J-13] AI application: agriculture and forestry

[4H3-J-13-03] Trial to determine the sex of salmon using CNN

〇Shuji Abe¹, Hiroaki Ishihata¹ (1. Tokyo University of Technology)

Keywords:CNN, Salmon, Determination of the sex

We tried to deteaminate the sex of salmon using a convolutional neural network(CNN). We collected labeled(male/female) salmon image data for two years, then trained VGG 16 type network. High accuracy was obtained with combination of learning data and test data of the same year. When the learning data and the test data are different year, it is almost impossible to recognize it. By using both data for learning, high recognition accuracy was obtained. It is important to obtain various variety of data not only forfish but also for the background.
We also investigated observation point of CNN using Gradcam.