V2EX reprojection

Reprojection

释义 Definition

“再投影;重投影”:把数据(如地图坐标、影像像素或三维点)从一种坐标系/投影方式转换到另一种坐标系/投影方式的过程,常见于地理信息系统(GIS)、摄影测量与计算机视觉中。

发音 Pronunciation (IPA)

/riprdekn/

例句 Examples

The GIS tool supports reprojection between common coordinate systems.
该 GIS 工具支持在常见坐标系之间进行再投影。

After camera calibration, we minimized the reprojection error to improve 3D reconstruction accuracy.
完成相机标定后,我们通过最小化重投影误差来提升三维重建的精度。

词源 Etymology

由 **re-**(“再次、重新”)+ projection(“投影”)构成。原义就是“重新进行投影”。在地图学里指将空间数据从一种地图投影转换到另一种;在计算机视觉里常与“重投影误差(reprojection error)”相关,指把三维点投回图像平面后与观测点的偏差。

相关词 Related Words

文学与著作 Literary Works

  • Map Projections: A Working Manual(John P. Snyder)
  • Multiple View Geometry in Computer Vision(Richard Hartley & Andrew Zisserman)
  • Computer Vision: Algorithms and Applications(Richard Szeliski)
  • Geographic Information Systems and Science(Longley, Goodchild, Maguire, Rhind)
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