摘要
以仿射投影来逼近透视投影 ,采用共轭梯度法迭代估计射影深度 ,通过测量矩阵的奇异值分解实现射影重构 .在摄象机内参数已知的情况下 ,求解一个满足欧氏重构条件的 4× 4非奇异矩阵 ,由此矩阵将射影重构变换为欧氏重构 .
Affine projection is used to approximate perspective projection, projective depths are iteratively estimated by using the conjugate gradient method, and the projective reconstruction is obtained by SVD of the measurement matrix. Under the circumstances in which the intrinsic parameters of camera are known, a 4x4 non singular matrix satisfying the conditions of euclidean reconstruction is evaluated, with which projective reconstruction is transformed into euclidean reconstruction. The result indicates that the algorithm is effective.
基金
国家 8 6 3计划资助项目 (86 3 980 4 0 9)
