Name
Title | ||
|---|---|---|
Toward Reconstructing Surfaces With Arbitrary Isotropic Reflectance : A Stratified Photometric Stereo Approach |
Abstract | ||
|---|---|---|
We consider the problem of reconstructing the shape of a surface with an arbitrary, spatially varying isotropic bidi- rectional reflectance distribution function (BRDF), and in- troduce a novel, stratified photometric stereo method. By using a particular configuration of lights, it is possible to use symmetry in the image measurements resulting from BRDF isotropy to estimate at each point a plane contain- ing the surface normal. For differentiable surfaces, this al- lows us to recover the isocontours of the depth map, but not the actual depth associated with each contour. The isocon- tour structure provides topological information about the surface (critical points, Reeb graph, etc.). By using addi- tional cues in the image data or imposing additional con- straints on the surface (e.g., shadows, specular highlights, Helmholtz Reciprocity, uniform BRDF), the unknown height of each isocontour can be estimated and the metric structure is resolved. We validate this technique on real and synthetic data by successfully recovering the isocontours of the depth map from images. |
Year | DOI | Venue |
|---|---|---|
2007 | 10.1109/ICCV.2007.4408881 | Rio de Janeiro |
Keywords | Field | DocType |
image reconstruction,stereo image processing,topology,BRDF isotropy,image data,image measurements,isocontour structure,isocontours,isotropic bidirectional reflectance distribution function,isotropic reflectance,stratified photometric stereo approach,surface reconstruction,topological information | Helmholtz reciprocity,Bidirectional reflectance distribution function,Specular highlight,Surface reconstruction,Computer vision,Computer science,Artificial intelligence,Depth map,Photometric stereo,Normal,Reeb graph | Conference |
Volume | Issue | ISSN |
2007 | 1 | 1550-5499 E-ISBN : 978-1-4244-1631-8 |
ISBN | Citations | PageRank |
978-1-4244-1631-8 | 39 | 1.41 |
References | Authors | |
18 | 2 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Neil G. Alldrin | 1 | 270 | 8.45 |
| David Kriegman | 2 | 7693 | 451.96 |