A gravity sensor in conjunction with the image feature angle of feature point image query methods

Disclosed is a method for the query image feature in conjunction with a gravity sensor angle image feature points, using gravity sensor carrying cameras capture a target image, the image samples obtained with gravity information for the query image and the image of these samples were treated as follows , overall compactness vector characterizing formed image of the sample: the feature point comprises a gravity of the extracted information images; angle of attribute values ​​for all the feature points will be extracted in both increasing a calculated by equation angle of rotation, the rotated image in all image feature points bags word model training, obtaining a plurality of cluster centers; for all image feature points in the rotated image feature coding, mapping feature points to each cluster center, and partition the feature point angle , wherein the polymerization performed in each partition, characterized integrally formed compact vector. Find the nearest neighbor method, find the image sample query image that best matches.