Method of determining an amount, non-transitory computer-readable storage medium and information processing apparatus

A non-transitory computer-readable storage medium storing a program that causes an information processing apparatus to execute a process, the process comprising:

• extracting a first feature point and a second feature point from a first image of an image-capture target;
• acquiring a first set of points having a correlation with the first feature point and a second set of points having a correlation with the second feature point from a second image being captured after the first image, the correlation meeting a first condition;
• identifying a first position of a center of gravity of the first set and a second position of a center of gravity of the second set;
• determining a first amount of movement of the image-capture target by performing first weighting processing, the first weighting processing being performed based on a number of points included in the first set and an amount of displacement from a position of the first feature point to the first position;
• determining a second amount of movement of the image-capture target by performing second weighting processing, the second weighting processing being performed based on a number of points included in the second set and an amount of displacement from a position of the second feature point to the second position;
• determining an amount of movement by normalizing the first amount and the second amount;
• and
• outputting the determined amount of movement.

An information processing apparatus comprising:

• a memory;
• and
• a processor coupled to the memory and configured to:
• extract a first feature point and a second feature point from a first image of an image-capture target;
• acquire a first set of points having a correlation with the first feature point and a second set of points having a correlation with the second feature point from a second image being captured after the first image, the correlation meeting a first condition;
• identify a first position of a center of gravity of the first set and a second position of a center of gravity of the second set;
• determine a first amount of movement of the image-capture target by performing first weighting processing, the first weighting processing being performed based on a number of points included in the first set and an amount of displacement from a position of the first feature point to the first position;
• determine a second amount of movement of the image-capture target by performing second weighting processing, the second weighting processing being performed based on a number of points included in the second set and an amount of displacement from a position of the second feature point to the second position;
• determine an amount of movement by normalizing the first amount and the second amount;
• and
• output the determined amount of movement.