摘要
随着数码相机在科技和生活中的应用范围不断扩大,其标定技术也受到了越来越多的关注.根据射影变换的不变性,提出了一种新的相机标定方法.首先探讨了世界坐标系、相机坐标系、图像像素坐标系、图像坐标系之间的关系,建立了相机标定方程,然后借助射影变换的特性提出了基于射影变换不变性的相机标定方法,并设计了相应的相机标定模版,最后对该方法进行了相关实验.
With the serviceable range of digital camera is more and more broaden, the methods for digital camera calibration attracts more and more attentions. The paper proposes a novel method for digital camera calibration based on invariant feature of projection trans- formation. Firstly, it discusses the relations of world coordinate system, camera coordinate system, pixel coordinate system and image coordinate system and constructs an equation of camera calibration. Secondly, it proposes a camera calibration method based on invariant feature of projection transformation and designs a corresponding template for camera calibration. Finally, it proves this method by some experiments.
出处
《数学的实践与认识》
CSCD
北大核心
2010年第10期124-130,共7页
Mathematics in Practice and Theory
关键词
相机标定
相机坐标系
射影变换
camera calibration
camera coordinate system
projection transformation
