摘要
平面型场景图像的三维度量重建就是确定图像平面到度量平面的八自由度同形矩阵,通过对平面型场景图像的三维度量重建方法的阐释,提出了非层次化平面型场景图像的三维度量重建方法,该方法不必对摄像机定标,直接考虑射影图像平面上的圆点Ip和Jp,Ip和Jp包含非度量矩阵N的四个自由度,把它们结合起来用两个圆点Ip和Jp表示对偶二次曲线来计算非度量矩阵N,基于场景几何知识,计算图像平面和世界平面之间的非度量矩阵N后就可得到平面型场景图像的三维度量重建。
3-dimensional metric reconstruction of plane image is a matter of determining the eight freedoms homography matrix from image plane to metric plane. This paper conducts detailed studies on the 3-dimensional metric reconstruction of plane scene image. A non-stratified 3-dimensional metric reconstruction method of plane scene image is proposed. Instead of the adoption of the camera calibration, considering the cireular points on the projective image plane directly, Ip and Jp . Together, Ip and Jp encapsulate all four degrees of freedom of the non-metric matrix N, the need to combine them in order to perform useful calculations of non-metric matrix N leads to a dual conic representation of the point pair. Based on the scene geometry knowledge,we can obtain the three dimensional metric reconstruction of plane scene image after computing the non-metric matrix N between image plane and world plane.
出处
《湖南理工学院学报（自然科学版）》
CAS
2005年第3期45-48,共4页
Journal of Hunan Institute of Science and Technology(Natural Sciences)
基金
福建工程学院科研基金资助项目(GY-Z0425)
