期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2007
卷号：XXXVI-3/W49B
页码：151-156
出版社：Copernicus Publications
摘要：In this paper we focus on a stereo system consisting of one stationary and one moving platform. The stationary platform detects motions and gives cues to the moving platform. When an object is in the field of view of both sensors the object's position, velocity, and acceleration are estimated from stereo. To prove the results a second stationary sensor platform is available to compute a reference from traditional stereo. We describe investigations about the accuracy and reliability concerning the automatic velocity estimation of targets in image sequences of multi-ocular systems with emphasis on moving sensor platforms. In order to make the assessment more comprehensible, we discuss a stereo-system consisting of one stationary and one moving platform. Therefore in this context dynamic stereo means that the stereo basis and relative orientation are varying within the image sequence. We present image sequences originating from different sensors at different positions including one moving sensor that were recorded during the same time span. Since all-day capability is required for warning systems predominantly infrared (IR) sensors were employed. We took image sequences of scenarios with one or more vehicles. The vehicles moved with typical velocities in natural surrounding. Their distances to the sensors was in the close range. The trajectories of all sensors and vehicles were registered with GPS-recorders to obtain ground-truth data
关键词：camera calibration; homography; parameter estimation; position estimation; velocity estimation; structure from motion
