Video camera calibration and perspective calculation

摘要

A method and system are provided for automatic calibration of a video camera by providing automatic perspective calculation. A calibration object detector is arranged to detect a calibration object in video data representing a scene observed by a video camera, and arranged to gather object data for the detected calibration object at a multiplicity of positions, such as three or more positions. The calibration object detector can include an automatic moving object detector and/or a static object detector. An automatic plane calculator is in communication with the calibration object detector and arranged to calculate the perspective of the camera based on gathered object data for at least one calibration object at a multiplicity of positions. The automation provided can enhance the operation of video analytics systems and reduce errors that can be introduced when an unskilled operator manually enters parameters on which the perspective is estimated.