Patent Document ID: 20180047171
Application ID: 15384802
Patent Status: 0

Claim One:
1. A method of maintaining a plurality of blob trackers for one or more video frames, the method comprising: associating a blob tracker with a blob generated for a video frame, wherein the blob includes pixels of at least a portion of one or more foreground objects in the video frame; determining whether the blob tracker is a first type of tracker or a second type of tracker, wherein the first type of tracker has a first bounding box and a second bounding box with an overlapping ratio greater than an alignment threshold for the first type of tracker, and wherein the second type of tracker has an irregular size change or an irregular motion change over a threshold duration; and removing the blob tracker from the plurality of blob trackers maintained for the one or more video frames when the blob tracker is the first type of tracker or the second type of tracker.