Computer-readable recoding medium having stored therein estimation processing program, estimation processing method and information processing apparatus

An estimation processing method executed by a computer, the estimation processing method comprising:

• inputting an input-image obtained by photographing a target to each of a first estimation model for estimating a region of an annular face of the target, a second estimation model for estimating a region in an outer circumference of the annular face and a third estimation model for estimating a region in an inner circumference of the annular face;
• and
• outputting a region image, as an estimated region of the annular face of the target in the input-image, in response to inputting of the input-image and being used for calculation of a difference set, the region image being obtained by synthesizing a first element, a second element and a third element, the first element being a first region outputted as an estimation result of the first estimation model in response to inputting of the input-image and being used for calculation of a sum set in the synthesizing, the second element being a second region outputted as an estimation result of the second estimation model in response to inputting of the input-image and being used for calculation of a sum set in the synthesizing, the third element being a third region outputted as an estimation result of the third estimation model in response to inputting of the input-image and being used for calculation of a difference set in the synthesizing.

An information processing apparatus, comprising:

• a memory;
• and
• a processor coupled to the memory, the processor being configured to:
• input an input-image obtained by photographing a target to each of a first estimation model for estimating a region of an annular face of the target, a second estimation model for estimating a region in an outer circumference of the annular face and a third estimation model for estimating a region in an inner circumference of the annular face;
• and
• output a region image, as an estimated region of the annular face of the target in the input-image, in response to inputting of the input-image and being used for calculation of a difference set, the region image being obtained by synthesizing a first element, a second element and a third element, the first element being a first region outputted as an estimation result of the first estimation model in response to inputting of the input-image and being used for calculation of a sum set in the synthesizing, the second element being a second region outputted as an estimation result of the second estimation model in response to inputting of the input-image and being used for calculation of a sum set in the synthesizing, the third element being a third region outputted as an estimation result of the third estimation model in response to inputting of the input-image and being used for calculation of a difference set in the synthesizing.