V2EX orthorectification

Orthorectification

Definition / 定义

orthorectification(正射校正):一种把航空/卫星影像进行几何纠正的处理方法,用来消除地形起伏传感器视角带来的位置偏差,使影像在地图坐标中与真实地面位置更一致,便于测量、叠加与制图(常用于生成正射影像/正射镶嵌图)。
(该词在遥感、摄影测量与 GIS 场景中最常见。)

Pronunciation / 发音

/rθorktfken/

Examples / 例句

The team applied orthorectification to the drone images before mapping the site.
团队在制图前对无人机影像进行了正射校正。

After orthorectification using a DEM and ground control points, the satellite image aligned accurately with the road network in the GIS.
在使用 DEM(数字高程模型)和地面控制点进行正射校正后,卫星影像在 GIS 中与道路网络实现了精确对齐。

Etymology / 词源

由 **ortho-**(“正、直、正确”,源自希腊语 orthos)+ rectification(“校正、矫正”)构成,字面意思是“使之变得正确/端正的校正”。在影像处理语境下,特指把倾斜拍摄或受地形影响的影像“纠正”为更接近地图正投影的状态。

Related Words / 相关词

  • Georeferencing
  • Geocoding
  • Photogrammetry
  • Remote
  • Mosaic
  • DEM
  • Resampling
  • Projection
  • Literary Works / 文学与作品举例

    • Remote Sensing and Image Interpretation(Lillesand, Kiefer & Chipman)
    • Introductory Digital Image Processing: A Remote Sensing Perspective(Jensen)
    • Manual of Photogrammetry(ASPRS,美国摄影测量与遥感学会)
    • Digital Photogrammetry: A Practical Course(Kraus)
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