| 摘要 |
The present invention provides a system having a video camera, a location sensor and a monitor for monitoring streetlights and reporting location of un-illuminated streetlights comprising; a video acquisition unit (2) to extract video images and convert them into a image frames from the camera; a location acquisition unit (4) to extract location and orientation information from the location sensor; a video storage (5) to record the image frames from the video acquisition unit (2); a location storage (6) to record the location and orientation information from the location acquisition unit (4); a database having a region of interest (ROI) information and streetlight locations information; a streetlight detector (8) to identify any unilluminated streetlight based on the streetlight locations information; a reporting unit (9) to display the location of unilluminated streetlights on the monitor (10); and a map generator unit (7), wherein the map generator (7) generates a map based on the region of interest (ROI) information and streetlight locations information using the image frames from the video storage (5) and location and orientation information from location acquisition unit (4) to display at the monitor (10), in which the streetlight detector (8) detect the unilluminated streetlight based on the map and report using reporting unit (9). Further, the streetlight detector (8) uses Hough transform technique to identify any unilluminated streetlight. Preferably, the map generator unit (7) is a geographic information system (GIS). Preferably, the location acquisition unit (4) is a Global Positioning System (GPS) received. Preferably, the streetlight detector is a photodetector. |
