Patent ID: 11861879
Assignee: RAKUTEN GROUP, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. An information processing method, comprising:
identifying, with at least one processor operating with a memory device in a system, a background area of a first image registered from a first account and a background area of a second image registered from a second account; and
outputting, with the at least one processor operating with the memory device in the system, identicalness information indicating whether a user owning the first account and a user owning the second account are identical to each other based on the background area of the first image and the background area of the second image;
acquiring a plurality of first local feature vectors each indicating a local feature of the first image;
acquiring a plurality of second local feature vectors each indicating a local feature of the second image; and
outputting the identicalness information based on results of searching for the second local feature vectors that correspond to the plurality of first local feature vectors, respectively;
estimating a three-dimensional positions for each of a plurality of points, at which at least a part of the plurality of first local feature vectors are extracted, based on positions at which at least a part of the plurality of first local feature vectors have been extracted in the first image and positions at which the second local feature vectors corresponding to the plurality of first local feature vectors, respectively, have been extracted in the second image; and
outputting the identicalness information based on the estimated three-dimensional positions of the plurality of points.