Information processing system and its control method, program

Abstract

We want to be able to recognize objects with greater accuracy. [Solution] A storage means for storing registered images relating to an object, to which the type of the object is associated, A means for identifying registered images that satisfy the predetermined conditions among the registered images, using information indicating the size of the region relating to the object extracted from the captured image and predetermined conditions relating to the size, A type identification means for identifying the type of object relating to the area based on the registered image identified by the identification means, Equipped with, The aforementioned identification means uses different conditions depending on whether the shape of the object relating to the region is a first shape or a shape other than the first shape.

Claims

1. A storage means for storing registered images relating to an object, to which the type of the object is associated; A means for identifying registered images that satisfy the predetermined conditions among the registered images, using information indicating the size of the region relating to the object extracted from the captured image and predetermined conditions relating to the size, A type identification means for identifying the type of object relating to the area based on the registered image identified by the identification means, Equipped with, The information processing system is characterized in that the identifying means uses different conditions depending on whether the shape of the object relating to the region is a first shape or a shape other than the first shape.

2. The information processing system according to claim 1, characterized in that the first shape is a perfect circle.

3. The system further comprises shape identification means for identifying the shape of an object, The information processing system according to claim 1, characterized in that the shape identifying means identifies shapes other than the first shape as any of the shapes of an ellipse, a quadrilateral, or a polygon.

4. The information processing system according to claim 1, characterized in that the information indicating the size is the length of the long side of the region.

5. The information processing system according to claim 1, characterized in that the information indicating the size is one of the length of the shorter side of the region, the length of the diagonal of the region, or the size of the area of ​​the region.

6. The information processing system according to claim 1, characterized in that the aforementioned conditions are determined by a magnification ratio for the information indicating the size.

7. The information processing system according to claim 1, characterized in that the condition is a condition that indicates whether or not there is a difference of a predetermined value or more between information indicating the size of the region relating to the object extracted from the captured image and information indicating the size of the region relating to the object extracted from the registered image.

8. The information processing system according to claim 1, characterized in that the conditions relating to the first shape are within a narrower range than the conditions relating to shapes other than the first shape.

9. The information processing system according to claim 1, further comprising extraction means for extracting a rectangular region as a region relating to an object from the captured image.

10. In the case of a shape other than the first shape, The information processing system according to claim 1, characterized by comprising a processing means for performing a normalization process to obtain, from among multiple rotated images obtained by rotating a captured image, the rotated image having the smallest area of ​​the region relating to the object extracted from the captured image.

11. The information processing system according to claim 1, characterized in that the identifying means identifies a registered image that satisfies the predetermined conditions from among registered images that include an object similar to the object extracted from the captured image.

12. The aforementioned identification means identifies a plurality of registered images, The information processing system according to claim 1, characterized in that the type identification means identifies the type with the most identified images among the types associated with the plurality of registered images as the type relating to the object.

13. The information processing system according to claim 12, characterized in that if the specified number of images is the same, the type associated with the registered image with the highest degree of similarity is identified as the type relating to the object.

14. The information processing system according to any one of claims 1 to 13, characterized in that the object is tableware.

15. A storage step in which registered images relating to an object, which are associated with the type of the object, A selection step involves identifying a registered image that satisfies the predetermined conditions among the registered images, using information indicating the size of the region related to the object extracted from the captured image and predetermined conditions related to the size. A type identification step to identify the type of object relating to the region based on the registered image identified in the aforementioned identification step, Equipped with, The information processing system is characterized in that the aforementioned specific step uses different conditions depending on whether the shape of the object relating to the region is a first shape or a shape other than the first shape.

16. A program for causing at least one computer to function as one of the means of the information processing system described in any one of claims 1 to 13.

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