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Ｒａｉｎｂｏｗ 三维摄像机是一种基于光谱分析的快速三维信息获取方法。该方法利用连续变化的彩色光谱照射景物，彩色ＣＣＤ 摄像机摄取的景物图象将呈现有规律的颜色变化，而且不同的颜色（波长）构成了不同的空间颜色面。通过标定这些颜色面和摄像机成象模型，即可计算出图象中各点的三维坐标。该文重点讨论实现该方法的标定技术和颜色分类技术，最后给出实验结果。
Rainbow 3D camera is a fast 3D information acquisition method based on spectral analysis. The method uses continuously changing color spectrum to illuminate the scene. The scene images taken by the color CCD camera will exhibit regular color changes, and different colors (wavelengths) form different spatial color planes. By calibrating these color planes and camera imaging models, the three-dimensional coordinates of the points in the image can be calculated. This article focuses on the calibration techniques and color classification techniques to achieve this method, and finally gives the experimental results.