An object recognition method in an object recognition system including a detection device, an imaging device, an object being changeable in state within a capturing range of the imaging device, an object recognition device, and an object control device, the method comprising:
- by the detection device, detecting a moving target object to be a recognition target;
- by the imaging device, imaging a moving image of the target object;
- by the object control device, controlling a state of the object, based on an output of the detection, in such a way that a change in light quantity or hue between captured images due to a state change of the object falls within a certain range;
- by the object recognition device, detecting a state change of the object being included in the moving image, and then specifying a captured image to be a recognition target;
- and
- recognizing the target object included in the specified captured image.