发明名称 |
Object tracking with integrated motion-based object detection (MogS) and enhanced kalman-type filtering |
摘要 |
Described is a system for object tracking with integrated motion-based object detection and enhanced Kalman-type filtering. The system detects a location of a moving object in an image frame using an object detection MogS module, thereby generating an object detection. For each image frame in a sequence of image frames, the system predicts the location of the moving object in the next image frame using a Kalman filter prediction module to generate a predicted object location. The predicted object location is refined using a Kalman filter updating module, and the Kalman filter updating module is controlled by a controller module that monitors a similarity between the predicted object location and the moving object's location in a previous image frame. Finally, a set of detected moving object locations in the sequence of image frames is output. |
申请公布号 |
US9552648(B1) |
申请公布日期 |
2017.01.24 |
申请号 |
US201314066600 |
申请日期 |
2013.10.29 |
申请人 |
HRL Laboratories, LLC |
发明人 |
Zhang Lei;Khosla Deepak;Chen Yang |
分类号 |
G06T7/20 |
主分类号 |
G06T7/20 |
代理机构 |
Tope-McKay & Associates |
代理人 |
Tope-McKay & Associates |
主权项 |
1. A system for object tracking, the system comprising:
one or more processors and a non-transitory memory having instructions encoded thereon such that when the instructions are executed, the one or more processors perform operations of: detecting a location of a moving object in an image frame of a sequence of image frames using a motion-based object detection MogS module, thereby generating an object detection; for each image frame in the sequence of image frames, predicting the location of the moving object in the next image frame through object tracking using a Kalman filter prediction module, thereby generating a predicted object location; monitoring object tracking quality using a controller module; refining the predicted object location using a Kalman filter updating module; adjusting, by the controller module, the Kalman filter updating module according to a dissimilarity measure based on a spatial distance constraint and an appearance-based matching score, thereby improving object tracking quality and ameliorating gradual drifting of object tracking; and outputting a set of detected moving object locations in the sequence of image frames. |
地址 |
Malibu CA US |