The present invention includes detecting a target portion of a face from a detected image, cropping a target image corresponding to the target portion from the detected image based on the detection result of the target portion, and the face is A motion recognition method and apparatus including recognizing whether or not a subject to belong to is executing a predetermined motion, and a driver state analysis method and apparatus, the embodiment of the present invention is applied to faces having different areas in different detected images. It is possible, it can be applied to faces of different face types, the embodiment of the present invention has a wide range of application, the target image contains sufficient information for analysis, the area of the cut target image is too large, and the useless information is Problems such as a decrease in system processing efficiency due to too much can be reduced.
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