HW6

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To Use

• Run q1.py to see the results of calibrated photometric stereo
  • Simulation of a Lambertian sphere in an orthographic camera with changing light directions
  • Estimation of albedos and normals of a human face given 7 images of the face lit from different directions
  • Estimation of the shape of the face by applying the Frankot-Chellappa algorithm to the normals
• Run q2.py to see the results of uncalibrated photometric stereo
  • Factorization of the pseudo-normals and the lighting directions with a rank-3 approximation
  • Investigation and solution of the ambiguity by enforcing integrability of the pseudo-normals
  • Investigation of the generalized bas-relief ambiguity,

Results

• Simulation of a Lambertian sphere with changing light directions

• Data

• Calibrated Photometric Stereo

• Generalized Bas-Relief Ambiguity