METHOD FOR SHOOTING VIDEO OF PLAYING FIELD AND FILTERING TRACKING INFORMATION FROM THE VIDEO OF PLAYING FIELD

摘要

Method and system for tracking objects based on video data, wherein each of a number of objects to be tracked on a playing field has been provided with at least one reflective marking configured to reflect invisible light of predefined wavelength, the method including: shooting video of the playing field utilizing one or multiple cameras sensitive to the invisible light of predefined wavelength, when moving marked objects are on the playing field, which is further illuminated during video shooting with one or multiple lamps transmitting the invisible light so as to capture images incorporating images of the reflective markings, supplying digital video image data to image processing equipment, and filtering tracking information from the digital video image data of a game situation on the playing field, wherein marked objects are searched, recognized and tracked and their movements analyzed based on recognizing the corresponding markings from the image data.

主权项

1. A method for tracking objects based on video data, wherein each of a number of objects to be tracked on a playing field, such as ice hockey rink, has been provided with at least one reflective marking configured to reflect invisible light of predefined wavelength, the method comprising:
shooting video of the playing field utilizing one or multiple cameras sensitive to the invisible light of predefined wavelength, when there are moving marked objects on the playing field, wherein the playing field is further illuminated during video shooting with one or multiple lamps transmitting the invisible light so as to capture images incorporating images of the reflective markings provided to the objects, supplying digital video image data to image processing equipment, and filtering tracking information from the digital video image data of a game situation on the playing field preferably substantially in real time by the image processing equipment, wherein marked objects are searched, recognized and tracked and their movements analyzed based on recognizing the corresponding markings from the image data.