在计算机视觉的应用领域中，为了提高图像量测和3维重建的精度，必须对相机的畸变误差进行修正。
In the application fields of computer vision, camera nonlinear distortion should be rectified in order to enhance the accuracy of the image measurement and 3d reconstruction.
文摘：在研究现有国内外技术成果的基础上，结合在道路量测上的实践，分析、总结了落锤式弯沉仪的7个应用领域。
Abstract: Based on research and application of FWD in roads, the author analyzes and presents seven practical techniques of FWD.
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