Method, system, and computer-readable recording medium for image-based object tracking

An image-based object tracking system comprising:

• an image capturing device configured to photograph an enclosed space and generate a video stream, wherein a moving range of a plurality of observed objects is limited to the enclosed space;
• a storage device configured to store data;
• and
• a processor coupled to the image capturing device and the storage device and configured to:
• receive a video stream comprising a plurality of images;
• detect a plurality of moving objects from the video stream, and generate frames associated with each of the moving objects, wherein the images comprise a current image and a previous image;
• establish linking relationship between current frames in the current image and the observed objects by analyzing position projecting relationship between the current frames in the current image and previous frames in the previous image;
• and
• track the observed objects in the enclosed space according to the established linking relationship.

A non-transitory computer-readable recording medium, recording computer programs to be loaded into a processor of an image-based object tracking system to execute steps of:

• receiving a video stream comprising a plurality of images, wherein the video stream is generated through photographing an enclosed space by an image capturing device, and a moving range of a plurality of observed objects is limited to the enclosed space;
• detecting a plurality of moving objects from the video stream, and generating frames associated with each of the moving objects, wherein the images comprise a current image and a previous image;
• establishing linking relationship between current frames in the current image and the observed objects by analyzing position projecting relationship between the current frames in the current image and previous frames in the previous image;
• and
• tracking the observed objects in the enclosed space according to the established linking relationship.