The effect of aerial photographic swing angle to the orientation precision of digital photogrammetry changes with the processing technical methods and the size of map scale.
航摄旋偏角对测图定向精度的影响随着处理技术手段的变换而改变，也随着比例尺由小变大而改变。
The precision is the key that we care about most in utilizing the photogrammetry principle and computer vision technology to measure or inspect the size and position of the part.
在利用摄影测量原理与计算机视觉技术对零件尺寸及位置等方面的检测、量测过程中，精度是我们最关心的问题。
A series of analyses for the coordinates of points gotten from the photogrammetry have been done, including precision, deviation and average value and so on.
利用摄影测量得到的点坐标进行一系列的分析，包括对点坐标的精度、偏差等。
Digital imaging device model and the calibration and high precision sub-pixel positioning is the core technology in digital photogrammetry.
数字成像器件模型及标定和高精度亚象素定位技术是数字摄影测量中的核心技术。
According to the main factors which affect the mapping precision, it is shown that difference between the digital photogrammetry mapping and analog photogrammetric plotting is comparatively analysed.
结合生产实践，从影响成图精度的几种因素的估算方法入手，比较分析了全数字化测图仪器同模拟测图仪器之间的精度差别。
According to the main factors which affect the mapping precision, it is shown that difference between the digital photogrammetry mapping and analog photogrammetric plotting is comparatively analysed.
结合生产实践，从影响成图精度的几种因素的估算方法入手，比较分析了全数字化测图仪器同模拟测图仪器之间的精度差别。
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