A gaze detection apparatus, a gaze detection method, and a gaze detection program capable of determining whether or not gaze can be accurately detected. An illumination device 103, a stereo camera device 102 that captures image data from a position in which the left and right eyeballs of the subject are vertically displaced, a position detection unit 210 that detects the positions of the left and right pupil centers, and the subject At least one of a gaze point detection unit 216 that detects position data of the gazing point, a difference between the distance between the stereo camera device 102 and the left and right pupil centers, and a vertical difference between the positions of the left and right pupil centers. Based on at least one of the calculation unit 220 to calculate, the difference in distance between the left and right pupil centers from the stereo camera device 102, and the difference in the vertical direction of the left and right pupil center positions, the gaze point detection unit 216 And a determination unit 222 that determines whether the detection result is valid. [Selection] Figure 4【課題】視線を正確に検出することができるか否かを判断することができる視線検出装置、視線検出方法及び視線検出プログラムを提供する。【解決手段】照明装置１０３と、被験者の左右の眼球を上下方向にずれた位置から画像データを撮影するステレオカメラ装置１０２と、左右それぞれの瞳孔中心の位置を検出する位置検出部２１０と、被験者の注視点の位置データを検出する注視点検出部２１６と、ステレオカメラ装置１０２と左右それぞれの瞳孔中心との距離の差分と、左右の瞳孔中心の位置の上下方向の差分との少なくともどちらかを算出する演算部２２０と、ステレオカメラ装置１０２と左右それぞれの瞳孔中心の距離の差分と、左右の前記瞳孔中心の位置の上下方向の差分との少なくともどちらかに基づいて、注視点検出部２１６の検出結果が有効か否かを判定する判定部２２２とを備える。【選択図】図４
