When we think of works by Van Gogh and Rembrandt, most of us remember a picture, but we aren’t accustomed to seeing the actual painting. [Tim Zaman], a scientist at Delft University of Technology in the Netherlands, realized that the material presence of the paint conveys meaning as well. He wanted to create a lifelike reproduction in full dimension and color. While a common laser-based technique could have been used for depth mapping, resolution is dependent on the width of the line or dot, and the camera cannot capture color data simultaneously with this method.
In his thesis, [Tim] goes into great detail on a hybrid imaging technique involving two cameras and a projector. He and his team eventually used two 40-megapixel Nikon cameras in conjunction with a fringe projector to capture a topographical map with in-plane resolution of 50 μm, and depth resolution of 9.2 μm.
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