Research on Three-Dimensional Measurement Using Color-Coding Structured Light

This paper presents a color structured light technique for recovering object shape from images. Coding strategy is one of the most important techniques because it effects the measure precision and efficiency directly. Unlike traditional encoding methods, we design new coloured stripe patterns in order to locate both intensity peaks and edges. Then edge detection method with sub-pixel accuracy is performed and the detected stripes centres and the edges between adjacent stripes are matched with the projected pattern. The experimental results show that our methods are very powerful in terms of accuracy and resolution.