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http://dx.doi.org/10.9717/kmms.2022.25.7.912

Useful Image Back-projection Properties in Cameras under Planar and Vertical Motion  

Kim, Minhwan (School of Computer Science and Engineering, College of Information and Biomedical Engineering, Pusan National University)
Byun, Sungmin (School of Computer Science and Engineering, College of Information and Biomedical Engineering, Pusan National University)
Publication Information
Journal of Korea Multimedia Society / v.25, no.7, 2022 , pp. 912-921 More about this Journal
Abstract
Autonomous vehicles equipped with cameras, such as robots, fork lifts, or cars, can be found frequently in industry sites or usual life. Those cameras show planar motion because the vehicles usually move on a plane. Sometimes the cameras in fork lifts moves vertically. The cameras under planar and vertical motion provides useful properties for horizontal or vertical lines that can be found easily and frequently in our daily life. In this paper, some useful back-projection properties are suggested, which can be applied to horizontal or vertical line images captured by a camera under planar and vertical motion. The line images are back-projected onto a virtual plane that is parallel to the planar motion plane and has the same orientation at the camera coordinate system regardless of camera motion. The back-projected lines on the virtual plane provide useful information for the world lines corresponding to the back-projected lines, such as line direction, angle between two horizontal lines, length ratio of two horizontal lines, and vertical line direction. Through experiments with simple plane polygons, we found that the back-projection properties were useful for estimating correctly the direction and the angle for horizontal and vertical lines.
Keywords
Back-projection; Virtual Plane; Planar Motion; Horizontal and Vertical Lines; Autonomous Vehicles;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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