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Method for implementing high-precision orientation and evaluating orientation precision of large-scale dynamic photogrammetry system
Method for implementing high-precision orientation and evaluating orientation precision of large-scale dynamic photogrammetry system
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机译:大型动态摄影测量系统实现高精度定向和评估定向精度的方法
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摘要
The present invention provides a method for implementing high-precision orientation and evaluating orientation precision of a large-scale dynamic photogrammetry system, including steps: a) selecting a scale bar, arranging code points at two ends of the scale bar, and performing length measurement on the scale bar; b) evenly dividing a measurement space into multiple regions, sequentially placing the scale bar in each region, and photographing the scale bar by using left and right cameras; d) limiting self-calibration bundle adjustment by using multiple length constraints, adjustment parameters including principal point, principal distance, radial distortion, eccentric distortion, in-plane distortion, exterior orientation parameter and spatial point coordinate; and e) performing traceable evaluation of orientation precision of the photogrammetry system. The present invention can effectively reduce the relative error in length measurement.
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