Patent ID: 8086587
Filing Date: 2011-12-27
Classification: G06F

Abstract:
1. An information processing apparatus, comprising: extracting means for extracting a plurality of characteristic quantities in the form of parameters that express respective characteristics of respective images, the images being a search query frame in the form of a frame image that acts as a basis for a search, and a plurality of search target frames in the form of frame images from video data that act as a target of the search; reliability judging means for judging a reliability of values of each characteristic quantity in a search query frame characteristic quantity group that was extracted by the extracting means; converting means for converting the values of the characteristic quantities in the search query frame characteristic quantity group that were judged to be values of low reliability by the reliability judging means, as well as values of the characteristic quantities in all search target frame characteristic quantity groups that correspond to the characteristic quantities judged to be values of low reliability by the reliability judging means into a same specific predetermined value; comparing means for comparing individual characteristic quantities in the search query frame characteristic quantity group and all search target frame characteristic quantity groups whose values were converted by the converting means; and deciding means for choosing, on the basis of the results of the comparisons conducted by the comparing means, a search solution frame that matches the search query frame, wherein the extracting means defines a characteristic quantity by normalizing values expressing a characteristic quantity of an image into binary values on the basis of a predetermined threshold value, the reliability judging means judges the value of the characteristic quantity to be of low reliability when the value expressing the characteristic quantity of the image before the normalization is included in a predetermined range centered about the threshold value, and the threshold value is defined to be an intermediate value between a maximum value and a minimum value of the values expressing the characteristic quantity of the image before the normalization.