We present an algorithm and the associated capture methodology to acquire and track the detailed 3D shape, bends, and wrinkles of deforming surfaces. Moving 3D data has been difficult to obtain by methods that rely on known surface features, structured light, or silhouettes. Multispectral photometric stereo is an attractive alternative because it can recover a dense normal field from an un-textured surface. We show how to capture such data and register it over time to generate a single deforming surface. Experiments were performed on video sequences of untextured cloth, filmed under spatially separated red, green, and blue light sources. Our first finding is that using zero-depth-silhouettes as the initial boundary condition already produces rather smoothly varying per-frame reconstructions with high detail. Second, when these 3D reconstructions are augmented with 2D optical flow, one can register the first frame's reconstruction to every subsequent frame.
|Title of host publication||2007 IEEE 11th International Conference on Computer Vision|
|Publication status||Published - 26 Dec 2007|
|Event||2007 IEEE 11th International Conference on Computer Vision, ICCV - Rio de Janeiro, Brazil|
Duration: 14 Oct 2007 → 21 Oct 2007
|Conference||2007 IEEE 11th International Conference on Computer Vision, ICCV|
|City||Rio de Janeiro|
|Period||14/10/07 → 21/10/07|