计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (19): 234-236.

• 工程与应用 • 上一篇    下一篇

基于网格的数码相机数字化纠正几何畸变算法

郭丙轩1,王铁程1,刘 波2   

  1. 1.武汉大学 测绘遥感信息工程国家重点实验室,武汉 430079
    2.东华理工学院 地球科学与测绘工程学院,江西 抚州 344000
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-07-01 发布日期:2007-07-01
  • 通讯作者: 郭丙轩

Research on rectifying distortion in digitization with digital camera based on grids

GUO Bing-xuan1,WANG Tie-cheng1,LIU Bo2   

  1. 1.State Key Lab. for Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China
    2.School of Geosciences and Surveying and Mapping,East China Institute of Technology,Fuzhou,Jiangxi 344000,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-07-01 Published:2007-07-01
  • Contact: GUO Bing-xuan

摘要: 提出了一种基于网格的利用仿射变换纠正数码相机几何畸变的算法。主要采用模板匹配、仿射变换、重采样等技术对数码相机拍摄的文档资料进行纠正。试验表明,该算法将图幅面划分为许多单元格,逐个单元格进行纠正,保证了纠正的精度,对于大批量图幅能提高其纠正的效率。

关键词: 网格, 数码相机, 扫描数字化, 几何畸变

Abstract: In this paper,an approach is presented to rectify the distortion of digital cameras by the affine transform.We use several technical of image processing to rectify image,including template matching,affine transform,re-sampling and image merging.The experiment show that this algorithm divides the image into a lot of unit grids,rectifies grid one by one,guarantees the rectificative precision,improves the rectificative efficiency.

Key words: grids, digital camera, digitization, geometric distortion