Patent ID: 11928805
Assignee: CANON KABUSHIKI KAISHA
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 11:
12. An information processing method performed by an information processing apparatus, the method comprising:
extracting, via a feature extraction unit, feature points from each of a plurality of images of an object to be inspected captured from a plurality of viewpoints;
acquiring defocus information on an image;
evaluating for each of the plurality of images, via an image quality evaluation unit, whether an image quality based on a predetermined index satisfies allowable conditions for inspection works of the object based on the defocus information;
stitching, via an image stitching unit, at least a part of the plurality of images, among the plurality of images, having the image quality that satisfies the allowable conditions according to a positional relation based on the feature points extracted in the extraction; and
performing, via a feature evaluation unit, feature point evaluation including evaluating a positional distribution of the feature points, and evaluating the number of feature points, extracted from each of the plurality of images,
wherein each of the plurality of images includes a plurality of regions, and for each of the plurality of regions in each of the plurality of images, the evaluating evaluates whether the image quality based on the predetermined index satisfies the allowable conditions for inspection works of the object,
wherein the stitching stitches partial regions included in the plurality of images having the image quality that satisfies the allowable conditions according to the positional relation based on the extracted feature points,
wherein the evaluating evaluates a resolution on the object for each region or a resolution on the object for each pixel, and
wherein, for each of images which are among the plurality of images and where a value indicating a result of the feature point evaluation is equal to or larger than a predetermined threshold value, the evaluating evaluates whether the image quality based on the predetermined index satisfies the allowable conditions for inspection works of the object based on the defocus information.