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Full Body Performance Capture under Uncontrolled and Varying Illumination: A Shading-Based Approach

  • Chenglei Wu
  • Kiran Varanasi
  • Christian Theobalt
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7575)

Abstract

This paper presents a marker-less method for full body human performance capture by analyzing shading information from a sequence of multi-view images, which are recorded under uncontrolled and changing lighting conditions. Both the articulated motion of the limbs and then the fine-scale surface detail are estimated in a temporally coherent manner. In a temporal framework, differential 3D human pose-changes from the previous time-step are expressed in terms of constraints on the visible image displacements derived from shading cues, estimated albedo and estimated scene illumination. The incident illumination at each frame are estimated jointly with pose, by assuming the Lambertian model of reflectance. The proposed method is independent of image silhouettes and training data, and is thus applicable in cases where background segmentation cannot be performed or a set of training poses is unavailable. We show results on challenging cases for pose-tracking such as changing backgrounds, occlusions and changing lighting conditions.

Keywords

Spherical Harmonic Surface Albedo Motion Capture Photometric Stereo Dual Quaternion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Chenglei Wu
    • 1
    • 2
  • Kiran Varanasi
    • 1
  • Christian Theobalt
    • 1
  1. 1.Max Planck Institute for InformatikGermany
  2. 2.Intel Visual Computing InstituteGermany

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