Title
Usage of needle maps and shadows to overcome depth edges in depth map reconstruction
Abstract
Photometric stereo is a method of recovering surface normals (needle map) from images. The surface inte- gral of surface normals is used to reconstruct a depth map; however, the depth edges, which are discontinuous boundaries of the depth map, pose a problem for pho- tometric stereo. When the surface of objects includes depth edges, the reconstructed depth map may contain errors. To solve this problem, we detect depth edges using shadows and compute a relative depth between two distant points using the widths of the correspond- ing shadows. We define an error function and recon- struct the depth map by minimizing the error function. Experimental results with synthetic and with real image data demonstrate the effectiveness of our approach.
Year
DOI
Venue
2008
10.1109/ICPR.2008.4761015
Tampa, FL
Keywords
Field
DocType
cartography,image reconstruction,stereo image processing,depth edges,depth map reconstruction,needle maps,photometric stereo
Iterative reconstruction,Surface reconstruction,Computer vision,Error function,Computer graphics (images),Computer science,Surface integral,Pixel,Artificial intelligence,Depth map,Real image,Photometric stereo
Conference
ISSN
ISBN
Citations 
1051-4651 E-ISBN : 978-1-4244-2175-6
978-1-4244-2175-6
2
PageRank 
References 
Authors
0.37
7
4
Name
Order
Citations
PageRank
Masaaki Iiyama11714.23
Koki Hamada220.37
koh kakusho3112.85
Michihiko Minoh434958.69