Indoor Camera Pose Estimation From Room Layouts and Image Outer Corners

被引:0
|
作者
Chen, Xiaowei [1 ]
Fan, Guoliang [1 ]
机构
[1] Oklahoma State Univ, Sch Elect & Comp Engn, Stillwater, OK 74078 USA
基金
美国国家卫生研究院;
关键词
Image outer corners (IOCs); PnL (perspective-n-line) problem; camera pose estimation; NSGA-II; GENETIC ALGORITHM; POINTS;
D O I
10.1109/TMM.2022.3233308
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
To support indoor scene understanding, room layouts have been recently introduced that define a few typical space configurations according to junctions and boundary lines. In this paper, we study camera pose estimation from eight common room layouts with at least two boundary lines that is cast as a PnL (Perspective-n-Line) problem. Specifically, the intersecting points between image borders and room layout boundaries, named image outer corners (IOCs), are introduced to create additional auxiliary lines for PnL optimization. Therefore, a new PnL-IOC algorithm is proposed which has two implementations according to the room layout types. The first one considers six layouts with more than two boundary lines where 3D correspondence estimation of IOCs creates sufficient line correspondences for camera pose estimation. The second one is an extended version to handle two challenging layouts with only two coplanar boundaries where correspondence estimation of IOCs is ill-posed due to insufficient conditions. Thus the powerful NSGA-II algorithm is embedded in PnL-IOC to estimate the correspondences of IOCs. In the last step, the camera pose is jointly optimized with 3D correspondence refinement of IOCs in the iterative Gauss-Newton algorithm. Experiment results on both simulated and real images show the advantages of the proposed PnL-IOC method on the accuracy and robustness of camera pose estimation from eight different room layouts over the existing PnL methods.
引用
收藏
页码:7992 / 8005
页数:14
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