I think this process would greatly be simplified if the laser lines were actually aimed vertically at the top and bottom of the book, because this is exactly what Steve and I are doing in the end. My 3D projection maps the 2D laser lines onto a 3D mesh, projects it onto a plane, and then scales it by sqrt(2) due to the perspective distortion.
When I drew the data points onto the image of the book, they (almost exactly) traced the top and bottom of the book. I think if the top and bottom were to be highlighted with lasers (as close as possible), then the dewarping would be faster and more accurate.
daniel_reetz wrote:L0gicm0del, that's a great find. Is it the part of the protractor you are shining through cylindrical, or half-cylindrical in shape?
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