Image analyzer, image analysis method, and image analysis program

An image analysis method implemented by a computer, the method comprising:

• repeatedly obtaining a captured image comprising a subject to be detected;
• detecting, in the captured image, a first area likely to comprise the subject without a cover;
• detecting, in the captured image, a second area likely to comprise the subject with a cover;
• determining whether the subject in the captured image is covered by the cover;
• and
• selecting one of a detection result obtained in detecting the first area and a detection result obtained in detecting the second area in accordance with a determination result obtained in determining whether the subject is covered, and locating a subject area comprising the subject in the captured image based on the selected detection result, wherein
• determining whether the subject is covered by the cover comprises determining whether the subject is covered by the cover based on the detection result obtained in detecting the first area and the detection result obtained in detecting the second area, and a determination result as to whether the subject in a captured image obtained previously is covered by the cover.

A non-transitory computer-readable storage medium storing an image analysis program, which when read and executed, causes a computer to perform operations comprising:

• repeatedly obtaining a captured image comprising a subject to be detected;
• detecting, in the captured image, a first area likely to comprise the subject without a cover;
• detecting, in the captured image, a second area likely to comprise the subject with a cover;
• determining whether the subject in the captured image is covered by the cover;
• and
• selecting one of a detection result obtained in detecting the first area and a detection result obtained in detecting the second area in accordance with a determination result obtained in determining whether the subject is covered, and locating a subject area comprising the subject in the captured image based on the selected detection result, wherein
• determining whether the subject is covered by the cover comprises determining whether the subject is covered by the cover based on the detection result obtained in detecting the first area and the detection result obtained in detecting the second area, and a determination result as to whether the subject in a captured image obtained previously is covered by the cover.