id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_5pmq7rfw4bdkncq5sdteafpdiu	S. Álvarez	Hierarchical camera auto-calibration for traffic surveillance systems	2014	11	.pdf	application/pdf	6919	672	60	In this paper, a hierarchical monocular camera auto-calibration method is presented for applications in The objective is to obtain the camera parameters without any restriction in terms of constraints or the need of prior knowledge, to deal with most traffic scenarios and possible configurations. Caprile and Torre (1990), developed a new method for camera calibration using simple properties of vanishing points. the three vanishing points by studying three orthogonal components with parallel lines in the moving objects or their motion patterns. auto-calibration method, based on vanishing points, and the hierarchical system proposed. The camera model used and the equations to obtain the calibration parameters from orthogonal vanishing points are described in This section presents the proposed method to extract the vanishing points from the image through a hierarchical process. is divided into the following steps: pedestrian detection with vertical component extraction, scene analysis and vanishing point	./cache/work_5pmq7rfw4bdkncq5sdteafpdiu.pdf	./txt/work_5pmq7rfw4bdkncq5sdteafpdiu.txt