148 search results - page 8 / 30 » Estimating Natural Illumination from a Single Outdoor Image |
ECCV
2002
Springer
14 years 9 months ago
2002
Springer
We present a completely automatic method for obtaining the approximate calibration of a camera (alignment to a world frame and focal length) from a single image of an unknown scene...
ICPR
2006
IEEE
14 years 9 months ago
2006
IEEE
In cast-shadow analysis one merely draws a line between each occluder and its associated shadow cast onto a different surface, possibly with wedges indicating precision. In some c...
CVPR
2009
IEEE
15 years 3 months ago
2009
IEEE
In this paper, we propose a method for estimating the
optical center of a camera given only a single image with
vignetting. This is accomplished by identifying the center
of the...
CVPR
2012
IEEE
11 years 10 months ago
2012
IEEE
Estimating the reflectance and illumination from a single image becomes particularly challenging when the object surface consists of multiple materials. The key difficulty lies ...
ECCV
2010
Springer
14 years 25 days ago
2010
Springer
Detecting shadows from images can significantly improve the performance of several vision tasks such as object detection and tracking. Recent approaches have mainly used illuminat...