摘要
在计算机视觉领域,透视投影变换是图像变换中最复杂的变换之一.在透视投影中的垂直投影是在实际工程应用中使用最广泛的变换方法.研究了透视变换中斜投影与正投影之间的变换关系,分析了不同角度的斜投影图像到正投影图像之间变换对参数的影响,得出了变化参数与斜投影的倾角关系.实验表明,按照所得到的参数与倾角关系矩阵,可以准确地计算出斜投影图像对应的正投影图像.
In computer vision, perspective projection is one of the most complicated image transformations. The top-view projection in the perspective projection is applied widely in many engineering fields. In this paper, the correlation between top-view projection and tilt-view projection is studied, and the influence of the trans- formation from the tih-view projections at different angles to top-view projections on the transfonnation pmam- eters is analyzed. Thereibre, the correlation between parameters and the tilt-angle is confirmed. Experiments show that based on the matrix relation between parameters and the angle of tilt, the expected top-view projec- tion image that corresponds to the tilt-view projection can be obtained by accurate calculation.
作者
张建伟
雷霖
ZHANG Jianwei LEI Lin(School of Information Science and Engineering, Chengdu University, Chengdu 610106, China)
出处
《成都大学学报（自然科学版）》
2017年第1期47-50,共4页
Journal of Chengdu University（Natural Science Edition）
基金
四川省科技厅科技支撑计划(2015GZ0274)
四川省教育厅理工类重点课题(15ZA0359)资助项目
关键词
垂直投影
透视变换
图像投影
图像处理
top-view projection
perspective transformation
image projection
image processing
