To infer the state of a person based on a thermal image.SOLUTION: An image recognition device 10 includes: an image acquisition unit 12 that acquires a thermal image captured by an infrared camera 30; a person detection unit 14 that searches for the thermal image acquired by the image acquisition unit 12 by using a person recognition dictionary and detects a person; and a face orientation determination unit 16 that determines an orientation of a person's face based on brightness distribution in the thermal image of a person's head detected by the person detection unit 14. The image recognition device 10 may include an adjustment processing unit 26 that adjusts a warning level based on the orientation of the person's face determined by the face orientation determination unit 16.SELECTED DRAWING: Figure 1
【課題】熱画像に基づいて人物の状態を推測する。【解決手段】画像認識装置10は、赤外線カメラ30が撮像する熱画像を取得する画像取得部12と、画像取得部12が取得した熱画像を人物認識辞書を用いて検索し、人物を検出する人物検出部14と、人物検出部14が検出した人物の頭部の熱画像における輝度分布に基づいて、人物の顔の向きを判定する顔向き判定部16と、を備える。画像認識装置10は、顔向き判定部16が判定した人物の顔の向きに基づいて警告レベルを調整する調整処理部26を備えてもよい。【選択図】図1
IMAGE RECOGNITION DEVICE AND IMAGE RECOGNITION METHOD
画像認識装置および画像認識方法
2022-03-04
Patent
Elektronische Ressource
Japanisch
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