VIDEO PROCESSING SYSTEM, VIDEO PROCESSING METHOD, VIDEO PROCESSING DEVICE FOR PORTABLE TERMINAL OR FOR SERVER AND METHOD FOR CONTROLLING AND PROGRAM FOR CONTROLLING SAME

摘要

The present invention recognizes in real time a recognition subject in a query image in a video while dynamically adjusting the precision of local feature quantities. In the present invention, a recognition subject is associated and recorded with m first local feature quantities each comprising a one-dimensional to i-dimensional feature vector, n features are extracted from an image in a video, n second local feature quantities are generated each comprising a one-dimensional to j-dimensional feature vector, the lower dimensionality from among dimensionality i dimensionality j is selected, and when it has been determined that at least a predetermined fraction of the m first local feature quantities comprising feature vectors up to the selected dimensionality correspond to the n second local feature quantities comprising feature vectors up to the selected dimensionality, it is recognized that the recognition subject is present in the image in the video. Also, the present invention is characterized by the precision of the n second local feature quantities that are generated being adjusted.