Information processing apparatus, method of operating information processing apparatus, and program for generating virtual viewpoint image

A method of operating an information processing apparatus including a processor and a memory connected to or incorporated in the processor, the method comprising:

• acquiring reference imaging device information corresponding to a position, an imaging direction, and an angle of view of a reference imaging device;
• and
• on a condition that an instruction to start generating a virtual viewpoint image based on a plurality of images obtained by imaging an imaging region with a plurality of imaging devices is given, generating the virtual viewpoint image by using the reference imaging device information as a reference, wherein, a position, an imaging direction, and an angle of view of the virtual viewpoint image match the position, the imaging direction, and the angle of view of the reference imaging device.