DOOR OPENING ANGLE CALCULATION METHOD AND STORAGE

To provide a door opening angle calculation method etc. which appropriately calculates an opening angle of a door.SOLUTION: A door opening angle calculation method includes: an opening angle calculation step which calculates, when a hinge-type door provided in a housing is opened, an opening angle of the door, on the basis of the number of pixels between a first edge which is an edge of the housing on a photographed image photographed by photographing means, and a second edge which is an edge of the door on the photographed image; and an opening angle correction step which corrects the opening angle, on the basis of a position relation between a prescribed reference line or reference position in the photographed image, and the first edge.SELECTED DRAWING: Figure 11 【課題】ドアの開角度を適切に算出するドア開角度算出方法等を提供する。【解決手段】ドア開角度算出方法は、筐体に設けられるヒンジ式のドアが開かれた場合、撮影手段による撮影画像上の筐体のエッジである第１エッジと、撮影画像上のドアのエッジである第２エッジと、の間の画素数に基づいて、ドアの開角度を算出する開角度算出ステップと、撮影画像における所定の基準線又は基準位置と、第１エッジと、の位置関係に基づいて、開角度を補正する開角度補正ステップと、を含む。【選択図】図１１