FISH COUNTER, FISH COUNTING METHOD, PREDICTION DEVICE FOR NUMBER OF FISH, PREDICTION METHOD FOR NUMBER OF FISH, FISH COUNTER SYSTEM AND PREDICTION SYSTEM FOR NUMBER OF FISH
PROBLEM TO BE SOLVED: To provide a simple fish counter, a fish counting method, a prediction device for number of fish, a prediction method for number of fish, a fish counter system and a prediction system for number of fish.SOLUTION: A fish counter of this invention is characterized by including: a measurement image acquiring means 11 for acquiring a plurality of measurement images over time regarding a measurement object area in a passage area where fluid including a fish passes； a fish position acquirement means 21 for acquiring the fish position regarding each of the plurality of measured images； a fish movement line calculation means 22 for calculating the movement line of the fish which is a trajectory of the movement of the fish based on the position of the fish in the plurality of measurement images； and a fish counting means 23 for counting the number of fish based on the movement line of the fish in the plurality of measured images.SELECTED DRAWING: Figure 1【課題】 簡易な魚計数装置、魚計数方法、魚数の予測装置、魚数の予測方法、魚計数システムおよび魚数予測システムを提供する。【解決手段】 本発明の魚計数装置は、魚を含む流体が通過する通過領域における計測対象領域について、経時的に複数の計測画像を取得する計測画像取得手段１１、前記複数の計測画像のそれぞれについて、前記魚の位置を取得する魚位置取得手段２１、前記複数の計測画像における前記魚の位置に基づき、前記魚が移動した軌跡である魚の移動線を算出する魚移動線算出手段２２、および前記複数の計測画像における前記魚の移動線に基づき、前記魚数を計数する魚計数手段２３を含むことを特徴とする。【選択図】図１
