【Key words】 image processing； mapping transform； perspective projection； robot localization；
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Besides, the method of twice average threshold is putout for the mapping transform in the image process of high- temperature components. The measurable effect of image process for edge detecting is assessed at first time.
此外，本论文首次在高温构件图像处理的映射变换中，提出二次均值映射变换的闽值选取方法;首次对基于边缘检测的图像处理进行了定量评定;首次实验分析和讨论了环境温度对CCD图像采集设备的影响。
参考来源 - 异形曲面视觉坐标在线热检系统研究·2,447,543篇论文数据，部分数据来源于NoteExpress
计算机图形学在三维动画中建立模型时，越来越多地使用映射变换的理论。
The theory of mapping is used more and more frequendy in the Computer Graphics three dimensional modeling.
并通过加权累加、倒数变换等方法，对观测值进行映射变换，使其呈现出更强的规律性，以进一步提高预测精度。
Furthermore, the regularity of test data can be greatly enhanced by weighted accumulative addition, reciprocal transformation and so on, which raises the precision of the prediction in time series.
经过CCD摄像机像面和光切平面之间的空间映射变换及图象处理后，可一次获得被测物的某一个截面的二维轮廓信息。
D figure information of any section was also attained after spatial mapping transformation between CCD image plane and light-section plane.
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