256 search results - page 33 / 52 » Camera Calibration from Two Shadow Trajectories |
PG
2002
IEEE
14 years 21 days ago
2002
IEEE
We present a new method for the detection and estimation of multiple directional illuminants, using a single image of any object with known geometry and Lambertian reflectance. W...
ECCV
2010
Springer
13 years 10 months ago
2010
Springer
In practice, rigid objects often move on a plane. The object then rotates around a fixed axis and translates in a plane orthogonal to this axis. For a concrete example, think of a...
ICMCS
1999
IEEE
14 years 2 days ago
1999
IEEE
We address the problem of recovering 3D models from uncalibrated images of architectural scenes. We propose a simple, geometrically intuitive method which exploits the strong rigi...
ICCV
2001
IEEE
14 years 9 months ago
2001
IEEE
General SFM methods give poor results for images captured by constrained motions such as planar motion of concentric mosaics (CM). In this paper, we propose new SFM algorithms for...
CVPR
2012
IEEE
11 years 10 months ago
2012
IEEE
This paper investigates the role that nonlinear camera response functions (CRFs) have on image deblurring. In particular, we show how nonlinear CRFs can cause a spatially invarian...