摘要： 针对传统三维重建方法计算复杂度高的问题，提出一种基于虚拟高度投影线的三维重建方法。该方法将场景栅格化，在栅格中引入虚拟高度线，把虚拟高度线投影到二维图像上形成投影线，并在投影线上找到对应点得到三维场景信息，以反映场景的真实信息。分析引起误差的主要来源，针对误差来源结合摄像机内外参数提出补偿方法。通过实验验证了该方法的有效性。
关键词:
虚拟高度线,
三维重建,
误差分析,
误差补偿,
立体视觉,
摄像机标定
Abstract: Aimingat the problem of 3D reconstruction method high computation complexity, 3D reconstruction method based on Virtual Height Projection Line(VHPL) is proposed. Scene is divided into grids where Virtual Height Lines(VHLs) are introduced, and each projection lines(PL), generated by projecting VHL into 2D image, whose correspondence is found to obtain the 3D data, the proposed method can express the scene basically. The error is analyzed, and the compensation is proposed combined with the intrinsic and extrinsic camera parameters. Experiments show the validity of the method.
Key words:
Virtual Height Line(VHL),
3D reconstruction,
error analysis,
error compensation,
stereo vision,
camera calibration
中图分类号:
陈华华, 姜宝林, 何志伟, 章东平. 基于虚拟高度投影线的三维重建及误差补偿[J]. 计算机工程, 2012, 38(5): 273-275.
CHEN Hua-Hua, JIANG Bao-Lin, HE Zhi-Wei, ZHANG Dong-Beng. 3D Reconstruction and Error Compensation Based on Virtual Height Projection Line[J]. Computer Engineering, 2012, 38(5): 273-275.