DRIVING ABILITY DETERIORATION DETECTION DEVICE, DRIVING ABILITY DETERIORATION DETECTION SYSTEM, AND DRIVING ABILITY DETERIORATION DETECTION PROGRAM

To make it possible to accurately detect a decrease in a driving ability of a driver.SOLUTION: A driving ability deterioration detection device is comprised of: an image pickup unit provided in a vehicle, which continuously captures an image of an outside of the vehicle while the vehicle is running; a vehicle behavior detection unit which is installed in the vehicle and detects vehicle behavior including a speed reduction of the vehicle; an event information acquisition unit that extracts an event including a change in a color of a signal based on the image and acquires an event occurrence time, which is a time when an event has occurred, and the number of events, which is a number of the events that have occurred at the same time; an action information acquisition unit that acquires an action time, which is a time when a driver of the vehicle performs an action on the vehicle based on the vehicle behavior; a time difference acquisition unit that acquires a time lag, which is a time difference between an event occurrence and a driver's action based on the event occurrence time and the action time; and a correlation acquisition unit that obtains a correlation coefficient between the number of events and the time lag based on the number of events and the time lag.SELECTED DRAWING: Figure 5 【課題】運転者の運転能力低下を正確に検知することができる。【解決手段】車両に設けられており、車両の走行中に前記車両の外部の画像を連続して撮像する撮像部と、車両に設けられており、車両の減速を含む車両挙動を検知する車両挙動検知部と、画像に基づいて信号の色の変化を含むイベントを抽出し、イベントが発生した時刻であるイベント発生時刻及び同時に発生したイベントの数であるイベント数を取得するイベント情報取得部と、車両挙動に基づいて車両の運転者が前記車両に対して動作を行った時刻である行動時刻を取得する行動情報取得部と、イベント発生時刻及び行動時刻に基づいて、イベントが発生してから運転者の行動までの時間差であるタイムラグを取得する時間差取得部と、イベント数とタイムラグとに基づいて、イベント数とタイムラグとの相関係数を求める相関取得部と、を備える。【選択図】図５