https://scholars.lib.ntu.edu.tw/handle/123456789/456339
標題: | Making in-Front-of Cars Transparent: Sharing First-Person-Views via Dashcam | 作者: | Chen, S.-C Chen, H.-Y Chen, Y.-L Tsai, H.-M HSIN-MU TSAI BING-YU CHEN |
公開日期: | 2014 | 卷: | 33 | 期: | 7 | 起(迄)頁: | 56-67 | 來源出版物: | Computer Graphics Forum | 摘要: | Visual obstruction caused by a preceding vehicle is one of the key factors threatening driving safety. One possible solution is to share the first-person-view of the preceding vehicle to unveil the blocked field-of-view of the following vehicle. However, the geometric inconsistency caused by the camera-eye discrepancy renders view sharing between different cars a very challenging task. In this paper, we present a first-person-perspective image rendering algorithm to solve this problem. Firstly, we contour unobstructed view as the transferred region, then by iteratively estimating local homography transformations and performing perspective-adaptive warping using the estimated transformations, we are able to locally adjust the shape of the unobstructed view so that its perspective and boundary could be matched to that of the occluded region. Thus, the composited view is seamless in both the perceived perspective and photometric appearance, creating an impression as if the preceding vehicle is transparent. Our system improves the driver's visibility and thus relieves the burden on the driver, which in turn increases comfort. We demonstrate the usability and stability of our system by performing its evaluation with several challenging data sets collected from real-world driving scenarios. © 2014 The Author(s) Computer Graphics Forum © 2014 The Eurographics Association and John Wiley & Sons Ltd. Published by John Wiley & Sons Ltd. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84939434802&doi=10.1111%2fcgf.12497&partnerID=40&md5=6d820c6ab2ed9ca655867f3796ec0c94 https://scholars.lib.ntu.edu.tw/handle/123456789/456339 |
ISSN: | 01677055 | DOI: | 10.1111/cgf.12497 | SDG/關鍵字: | Amphibious vehicles; Iterative methods; Rendering (computer graphics); Driving safety; Field of views; First person; First-person perspectives; Following vehicle; Homography transformation; ITS evaluation; Real-world drivings; Vehicles |
顯示於: | 資訊管理學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。