Moving object tracking device, moving object tracking system and moving object tracking method

A moving object tracking system for, to allow a display device to display a screen in which a movement line indicating a movement path of a moving object is superimposed on a real-time image of a monitored area, obtaining movement line information based on detection position information obtained by detecting the moving object from images of the monitored area, the system comprising:

• a camera that captures images of the monitored area;
• a plurality of information processing devices;
• and
• the display device that displays a screen in which the movement line is superimposed on the real-time image of the monitored area,
• wherein the plurality of information processing devices jointly comprise:
• a moving object detector that detects the moving object from the images of the monitored area and outputs the detection position information of the moving object;
• a first movement line generator that removes erroneous detection information included in the detection position information and generates a determined movement line optimized as the movement path of the moving object based on the detection position information having the erroneous detection information removed;
• a second movement line generator that generates a provisional movement line interpolating an undetermined section between a substantially latest detection position indicated by the detection position information and an end point of the determined movement line;
• a movement line information obtainer that obtains movement line information relating to an integrated movement line formed of the determined movement line and the provisional movement line integrated together;
• and
• a screen generator that generates, based on the movement line information, the screen in which the movement line is superimposed on the real-time image of the monitored area.

A moving object tracking method for, to allow a display device to display a screen in which a movement line indicating a movement path of a moving object is superimposed on a real-time image of a monitored area, obtaining movement line information based on detection position information obtained by detecting the moving object from images of the monitored area, the method comprising:

• detecting the moving object from the images of the monitored area and outputting the detection position information of the moving object;
• removing erroneous detection information included in the detection position information and generating a determined movement line optimized as the movement path of the moving object based on the detection position information having the erroneous detection information removed;
• generating a provisional movement line interpolating an undetermined section between a substantially latest detection position indicated by the detection position information and an end point of the determined movement line;
• and
• obtaining movement line information relating to an integrated movement line formed of the determined movement line and the provisional movement line integrated together,
• wherein at least one of the detecting the moving object, the removing erroneous detection information included in the detection position information and generating a determined movement line, the generating a provisional movement line, and the obtaining movement line information is performed by a processor.