IMPROVED ASSISTANCE DEVICE FOR IMAGE RECOGNITION

摘要

The present invention relates to an assistance device for image recognition that comprises a memory (3) storing sets of image descriptors, respectively associated with an image area and including first vector data, second angle data, and third scale data. A first operator (13) receives a designation of two descriptors and establishes a Boolean representing a check of a similarity criterion of the descriptor vectors from a comparison among first data. A second operator (15) receives a designation of two descriptors and establishes a rotation angle parameter from the second data. A third operator (17) receives a designation of two descriptors and establishes a scale factor parameter from the third data. A controller (5) receives the designations of first and second sets of descriptors and applies the first operator (13) to each pair including a descriptor of the first set and a descriptor of the second set in order to derive a list of similar descriptor pairs, calls the second operator (15) and the third operator (17) for each of said pairs and for storing the group of parameters thus obtained, as well as an estimator (21) of the resemblance of the images of the first and second sets using a statistic processing of said parameters.