Name
Abstract | ||
|---|---|---|
In this paper, we show how to speed up the table lookup step in gauge-based multi-image photometric stereo. In that step, one must find a pixel of a gauge object, of known shape and color, whose appearance under m different illumination fields is similar to that of a given scene pixel. This search reduces to finding the closest match to a given mvector in a table with a thousand or more m-vectors. Our speed-up method exploits the fact that the table is in fact a fairly flat two-dimensional manifold in m-dimensional space, so that the search can be efficiently solved with a two-dimensional bucket grid structure. |
Year | DOI | Venue |
|---|---|---|
2007 | 10.1109/SIBGRAPI.2007.2 | SIBGRAPI |
Keywords | Field | DocType |
photometric stereo,grid computing | Computer vision,Grid computing,Computer graphics (images),Computer science,Pixel,Artificial intelligence,Gauge (firearms),Photometric stereo,Grid,Manifold,Speedup | Conference |
ISBN | Citations | PageRank |
0-7695-2996-8 | 2 | 0.38 |
References | Authors | |
9 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Helena Cristina Da Gama Leitão | 1 | 98 | 7.70 |
| Rafael F. V. Saracchini | 2 | 20 | 3.39 |
| Jorge Stolfi | 3 | 1559 | 296.06 |