CVPR
2012
IEEE
12 years 2 months ago
2012
IEEE
We present a real-time approach for image-based localization within large scenes that have been reconstructed offline using structure from motion (Sfm). From monocular video, our...
BCS
2008
14 years 1 months ago
2008
: The SIFT algorithm (Scale Invariant Feature Transform) proposed by Lowe [1] is an approach for extracting distinctive invariant features from images. It has been successfully app...
CIVR
2005
Springer
14 years 6 months ago
2005
Springer
Abstract. We introduce a view–point invariant representation of moving object trajectories that can be used in video database applications. It is assumed that trajectories lie on...
ICMCS
2006
IEEE
14 years 6 months ago
2006
IEEE
In this paper, we developed a family of 2D and 3D invariant features with applications to 3D human faces recognition. The main contributions of this paper are: (a) systematically ...
GI
2007
Springer
14 years 6 months ago
2007
Springer
Abstract: Some surfaces, like metallic and varnished ones, can only be properly controlled, if they are inspected under different illumination directions. This requires a three-dim...
ICDAR
2007
IEEE
14 years 6 months ago
2007
IEEE
We describe an unsupervised learning algorithm for extracting sparse and locally shift-invariant features. We also devise a principled procedure for learning hierarchies of invari...
ICPR
2006
IEEE
15 years 1 months ago
2006
IEEE
Due to the increasing amount of 3D data for various applications there is a growing need for classification and search in such databases. As the representation of 3D objects is no...
ICIP
2004
IEEE
15 years 2 months ago
2004
IEEE
In this paper we propose an image retrieval scheme based on projectively invariant features. Since cross-ratio is the fundamental invariant feature under projective transformation...
ICCV
1998
IEEE
15 years 2 months ago
1998
IEEE
`Invariant regions' are image patches that automatically deform with changing viewpoint as to keep on covering identical physical parts of a scene. Such regions are then desc...
CVPR
2004
IEEE
15 years 2 months ago
2004
IEEE
Invariant features or operators are often used to shield the recognition process from the effect of "nuisance" parameters, such as rotations, foreshortening, or illumina...