PROBLEM TO BE SOLVED: To improve detection accuracy of an object included in an irradiated body.SOLUTION: The detection device according to an embodiment includes a light source, an imaging section, a front window, and a detection section. The light source applies light to an irradiated body. The imaging section includes a lens, the field angle of which is set up to 39 degrees or less, and captures an image of the irradiated body using the light applied from the light source. The front window is disposed on a front face of the imaging section and transmits the light. The detection section extracts a color corresponding to an object from a captured image of the irradiated body captured by the imaging section, extracts an image area including the extracted color, and detects the object.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】被照射体に含まれる対象物の検知精度を高める。【解決手段】実施形態に係る検知装置は、光源と、撮像部と、前面窓と、検知部とを具備する。光源は、被照射体へ光を照射する。撮像部は、画角が３９度以下に設定されたレンズを有し、光源から照射される光を用いて被照射体を撮像する。前面窓は、撮像部の前面に配置され、光を透過する。検知部は、撮像部によって撮像された被照射体の撮像画像から対象物に対応する色を抽出し、抽出した色を含む画像領域を抽出して対象物を検知する。【選択図】図２
