The Build lens node can be used to construct a lens model from multiple images of a calibration grid, such as a checker-board pattern, taken at different camera focal lengths.
构建透镜节点可以用来构造一个透镜模型从多个图像的校准网格，如棋盘式格局，取不同的相机焦距。
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The utility model discloses a bow lens rim, the color of which can be changed. The bow lens rim comprises a hollow bow lens rim and plastic stoppers stuffed at multiple openings of the bow lens rim.