Patent ID: 8374437
Filing Date: 2013-02-12
Classification: G06K

Abstract:
1. An information processing apparatus to generate information used to identify images, the information processing apparatus comprising: model image obtaining means for obtaining a plurality of model images; model image feature quantity extracting means for extracting feature quantities of the model images obtained by the model image obtaining means; matching means for performing matching on the feature quantities of the model images extracted by the model image feature quantity extracting means; and identifying feature point extracting means for extracting, as a result of the matching performed by the matching means, feature points having a low correlation with a predetermined model image in similar model images that are the model images having a predetermined number or more of the feature quantities that match feature quantities of the predetermined model image, the extracted feature points being regarded as identifying feature points used for identification of the respective similar model images, wherein the identifying feature points extracted by the identifying feature point extracting means are classified into a first group and a second group, each of the model images being identified as a corresponding similar model image when having a larger number of matching pairs at the identifying feature points in the first group or when having a smaller number of matching pairs at the identifying feature points in the second group.