Foot shape measurement apparatus and computer program

A foot shape measurement apparatus comprising:

• an imaging unit;
• a display controller;
• one or more processors;
• and
• a predetermined reference sheet to be imaged together with a foot of a subject to detect a reference length in an augmented reality space, wherein
• the one or more processors is configured to set the augmented reality space, based on an image captured by the imaging unit,
• the display controller structured to display, on a screen, the image captured by the imaging unit and a guide object to be arranged in the augmented reality space and to guide an imaging procedure, and
• the one or more processors is configured to acquire a plurality of foot images that have been captured by the imaging unit imaging the foot of the subject from a plurality of angles,
• generate a three-dimensional model of the foot of the subject, based on the plurality of foot images, and
• output a measurement result based on the three-dimensional model that has been generated, wherein
• the display controller displays, as the guide object, a target mark and a state mark to be superimposed on a visual being captured by the imaging unit, the target mark indicating a viewpoint position in which an imaging viewpoint of the imaging unit in the augmented reality space forms a predetermined angle to the foot of the subject, the state mark indicating a current state of the imaging viewpoint of the imaging unit in the augmented reality space,
• the one or more processors acquires, as the foot image that has been captured from the predetermined angle, the image to be captured when the imaging viewpoint by the imaging unit in the augmented reality space is present in the imaging viewpoint by which a display state of the target mark and a display state of the state mark each satisfy a predetermined condition, and
• the display controller displays a first foot shape mark to be superimposed, and also displays a second foot shape mark, the first foot shape mark indicating an area for placing one of feet to be measured in a predetermined position of the reference sheet that has been imaged by the imaging unit, the second foot shape mark indicating a position of the other one of the feet such that a gravity center position of the subject falls within a base of support when the imaging viewpoint becomes the predetermined angle to the foot of the subject, as a position outside the reference sheet that is preferable for placing the other one of the feet not to be measured.