369 search results - page 4 / 74 » Recovering Illumination and Texture Using Ratio Images |
PR
2002
13 years 5 months ago
2002
Search by Object Model -- finding an object inside a target image -- is a desirable and yet difficult mechanism for querying multimedia data. An added difficulty is that objects c...
ICPR
2004
IEEE
14 years 6 months ago
2004
IEEE
The bidirectional texture function (BTF) describes texture appearance variations due to varying illumination and viewing conditions. This function is acquired by large number of m...
FGR
2004
IEEE
13 years 9 months ago
2004
IEEE
The performances of face recognition systems are heavily subject to the variations in lighting. We propose a novel approach for face recognition under generic illumination conditi...
ICIP
2003
IEEE
14 years 7 months ago
2003
IEEE
Changes in the angle of illumination incident upon a 3D surface texture can significantly alter its appearance, implying variations in the image texture. These texture variations ...
DPHOTO
2009
13 years 3 months ago
2009
Digital camera sensors are sensitive to wavelengths ranging from the ultraviolet (200-400nm) to the near-infrared (700-100nm) bands. This range is, however, reduced because the ai...