37 search results - page 6 / 8 » Distortion Estimation Techniques in Solving Visual CAPTCHAs |
3DPVT
2006
IEEE
14 years 1 months ago
2006
IEEE
Vanishing points are valuable in many vision tasks such as orientation estimation, pose recovery and 3D reconstruction from a single image. Many methods have been proposed to addr...
BC
1998
13 years 7 months ago
1998
Abstract. In a stereoscopic system, both eyes or cameras have a slightly dierent view. As a consequence, small variations between the projected images exist (`disparities') ...
3DPVT
2006
IEEE
14 years 1 months ago
2006
IEEE
In this paper we address the problem of recovering structure and motion from a large number of intrinsically calibrated perspective cameras. We describe a method that combines (1)...
VISSYM
2007
13 years 9 months ago
2007
One of the most common visualization tasks is the extraction of significant boundaries, often performed with isosurfaces or level set segmentation. Isosurface extraction is simple...
ECCV
2006
Springer
14 years 9 months ago
2006
Springer
In recent years, nonlinear dimensionality reduction (NLDR) techniques have attracted much attention in visual perception and many other areas of science. We propose an efficient al...