SAME-FISH IDENTIFICATION DEVICE, FISH COUNTING DEVICE, PORTABLE TERMINAL FOR COUNTING FISH, SAME-FISH IDENTIFICATION METHOD, FISH COUNTING METHOD, FISH COUNT PREDICTION DEVICE, FISH COUNT PREDICTION METHOD, SAME-FISH IDENTIFICATION SYSTEM, FISH COUNTING SYSTEM, AND FISH COUNT PREDICTION SYSTEM

摘要

The present invention provides a same fish easy identification device, a fish counting device, a mobile terminal for counting fish, a same fish identification method, a fish counting method, a fish count prediction device, a fish count prediction method, a same fish identification system, a fish counting system, and a fish count prediction system. The same fish identification device of the present invention includes: a measurement image acquisition unit 11; a fish position information acquisition unit 131; a predicted fish position information acquisition unit 132; and a same fish identification unit 133. The measurement image acquisition unit 11 acquires, over time, n measurement images of a region to be measured in a passage region where a fluid containing fish passes through. The fish position information acquisition unit 131 acquires fish position information in the n measurement images. The predicted fish position information acquisition unit 132 selects a selected image(s) from the measurement images acquired prior to a (m−1)th measurement image among the n measurement images and acquires predicted fish position information (PI_m) in the m-th measurement image on the basis of the fish position information in the selected image. On the basis of the fish position information (I_m) in the m-th measurement image and the corresponding predicted fish position information (PI_m), the same fish identification unit 133 identifies the fish in the m-th measurement image as the same fish as in the selected image when the fish position information (I_m) matches with the predicted fish position information (PI_m) and identifies the fish in the m-th measurement image as not being the same fish as in the selected image when the fish position information (I_m) does not match with the predicted fish position information (PI_m).