Hernandez, C; Vogiatzis, G; Brostow, GJ; Stenger, B; Cipolla, R; (2007) Non-rigid photometric stereo with colored lights. In: 2007 IEEE 11TH INTERNATIONAL CONFERENCE ON COMPUTER VISION, VOLS 1-6. (pp. 873 - 880). IEEE
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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 un-textured 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:||Non-rigid photometric stereo with colored lights|
|Event:||11th IEEE International Conference on Computer Vision|
|Location:||Rio de Janeiro, BRAZIL|
|Dates:||2007-10-14 - 2007-10-21|
|Keywords:||CAPTURE, SHAPE, RECONSTRUCTION, EXAMPLE, MOTION|
|UCL classification:||UCL > School of BEAMS > Faculty of Engineering Science > Computer Science|
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