Calculation method, calculation apparatus, and computer-readable recording medium

A calculation method executed by a computer, the calculation method comprising:

• setting, with regard to each of a plurality of frame images included in moving image data on a captured subject, a time interval region including a predetermined time width in time sequence for detection map information relating a detection result of each of types of feature values to a time sequence of the frame image;
• acquiring, with regard to each of a plurality of positions in the time interval region, a distribution state of the detection result in the time interval region in a case where a position of the set time interval region is changed in the time sequence in the detection map information;
• calculating a distributed representation indicating a set of points obtained by projecting the distribution state in each of the positions onto a low-dimensional space;
• and
• determining, based on a comparison between the acquired distributed representation and the distributed representation obtained from determination target moving image data on the captured subject, whether the determination target moving image data is data on a captured subject in a faulty state.

A calculation apparatus comprising:

• a memory;
• and
• a processor coupled to the memory and configured to:
• set, with regard to each of a plurality of frame images included in moving image data on a captured subject, a time interval region including a predetermined time width in time sequence for detection map information relating a detection result of each of types of feature values to a time sequence of the frame image,
• acquire, with regard to each of a plurality of positions in the time interval region, a distribution state of the detection result in the time interval region in a case where a position of the time interval region set at the setting is changed in the time sequence in the detection map information,
• calculate a distributed representation indicating a set of points obtained by projecting the distribution state in each of the positions onto a low-dimensional space, and
• determine, based on a comparison between the acquired distributed representation and the distributed representation obtained from determination target moving image data on the captured subject, whether the determination target moving image data is data on a captured subject in a faulty state.