Cloud based video detection and tracking system
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorsERIK P. BLASCH, KUI LIU, BINGWEI LIU, DAN SHEN, GENSHE CHEN
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Abstract
A method for detecting and tracking multiple moving targets from airborne video within the framework of a cloud computing infrastructure. The invention simultaneously utilizes information from an optical flow generator and an active-learning histogram matcher in a complimentary manner so as to rule out erroneous data that may otherwise, separately, yield false target information. The invention utilizes user-based voice-to-text color feature description for track matching with hue features from image pixels.
Claims17
A method for video detection and tracking of a target, comprising the steps of:
- defining said target, wherein in said step of defining further comprises the steps of:
- selecting a dataset of target image frames from a database;
- and
- selecting the desired color of said target;
- converting said color to a template hue histogram representation;
- initializing an image detector;
- performing target image frame alignment and registration in which homography matrices are generated;
- generating an optical flow field;
- performing morphology processing on said optical flow field so as to produce candidate target contours;
- matching said target contours to said template hue histogram representation;
- initializing tracking of said target and generating target tracks;
- aligning current said target image frame so as to form a sequential track of said target;
- and
- when said target is not located, redefining said target.
Dependencies are inferred from the claim text.