Method and system for using fingerprints to track moving objects in video

摘要

METHOD AND SYSTEM FOR USING FINGERPRINTS TO TRACK MOVING OBJECTS IN VIDEO A method and system for tracking moving objects (155) in a sequence of images (110). In one illustrative embodiment, a current image (128) in the sequence of images (110) is segmented into a plurality of segments (138). Segments in the plurality of segments (138) belonging to a same motion profile are fused together to form a set of master segments (142). A set of target segments (154) is identified from the set of master segments (142). The set of target segments (154) represent a set of moving objects (155) in the current image (128). A set of fingerprints (156) is created for use in tracking the set of moving objects (155) in a number of subsequent images (162) in the sequence of images (110). 1300 RECEIVE A CURRENT IMAGE FOR PROCESSING 1302 IDENTIFY GLOBAL MOTION IN THE CURRENT IMAGE AND LOCAL MOTION IN THE CURRENT IMAGE SUBTRACT THE GLOBAL MOTION IN THE CURRENT 1304 IMAGE FROM LOCAL MOTION IN THE CURRENT IMAGE TO FORM A MOTION IMAGE IN WHICH THE MOTION IMAGE INCLUDES A SET OF MOTION PROFILES 1306 SEGMENT THE CURRENT IMAGE INTO A PLURALITY OF SEGMENTS TO FORM A SEGMENTED IMAGE FUSE TOGETHER SEGMENTS IN THE PLURALITY OF 1308- SEGMENTS BELONGING TO A SAME MOTION PROFILE TO FORM A SET OF MASTER SEGMENTS ESTABLISH A SET OF TARGET SEGMENTS TO BE 131 0 FINGERPRINTED IN WHICH A TARGET SEGMENT IN THE SET OF TARGET SEGMENTS REPRESENTS A MOVING OBJECT CREATE A FINGERPRINT FOR USE IN TRACKING THE 1312 MOVING OBJECT IN A NUMBER OF SUBSEQUENT IMAGES