Patent ID: 9672423
Date: 2017-06-06
CPC Classifications: G06K,G06T

Claim:
1. A method of tracking an object, the method comprising: performing, by a processor, propagation of probability from a first set of frames comprising a part of a plurality of frames where tracking of a target object is completed, among the plurality of frames to a second set of frames comprising remaining frames where the tracking of the target object is not completed to calculate a probability map for the target object in each frame of the second set of frames where the tracking of the target object is not completed; selecting, by the processor, a frame from the second set of frames where the tracking of the target object is not completed based on a reliability level of the calculated probability map for the selected frame; and determining, by the processor, a location of the target object in the selected frame, wherein the part of the plurality of frames where the tracking of the target object is completed comprises the frames where the location of the target object is determined, and the remaining frames where the tracking of the target object is not completed comprise the frames where the location of the target object is not determined, and wherein the performing probability propagation determines a plurality of paths from a starting frame of the first set of frames to each frame of the second set of frames through the remaining frames except for the starting frame, calculates a plurality of probability maps for the target object in the each frame of the second set of frames according to the determined paths, and calculates the probability map for the target object by calculating an average of the plurality of probability maps which are calculated according to each path.