Image augmentation apparatus, control method, and non-transitory computer-readable storage medium

A control method performed by a computer, comprising:

• acquiring an original training dataset including a ground-view image and an original aerial-view image;
• performing an image augmentation including a cropping process and a rotation process on the original aerial-view image to generate an augmented aerial-view image, the cropping process being a process by which a target region with a regular polygon shape other than a square is cropped from the original aerial-view image, the rotation process being a process by which the original aerial-view image is rotated, an angle of the rotation being an integer multiple of a center angle of the target region;
• and
• outputting an augmented training dataset including the ground-view image and the augmented aerial-view image.

A non-transitory computer-readable storage medium storing a program that causes a computer to execute to:

• acquire an original training dataset including a ground-view image and an original aerial-view image;
• perform an image augmentation including a cropping process and a rotation process on the original aerial-view image to generate an augmented aerial-view image, the cropping process being a process by which a target region with a regular polygon shape other than a square is cropped from the original aerial-view image, the rotation process being a process by which the original aerial-view image is rotated, an angle of the rotation being an integer multiple of a center angle of the target region;
• and
• output an augmented training dataset including the ground-view image and the augmented aerial-view image.