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GIS
2007
ACM
14 years 11 months ago
Multilevel object-oriented classification of quickbird images for urban population estimates
This paper is committed to explore object-oriented methods for the classification of Quickbird images, aiming to support future urban population estimates. The study area concerns...
Carolina M. D. Pinho, Cláudia Maria de Alme...
ICASSP
2011
IEEE
13 years 1 months ago
A new data hiding method using angle quantization index modulation in gradient domain
A robust data hiding scheme that embeds the watermark bits by quantizing the gradient directions of an image is proposed. By embedding the watermark in the angle, the watermark be...
Ehsan Nezhadarya, Z. Jane Wang, Rabab K. Ward
ICIP
2006
IEEE
14 years 11 months ago
Fast Video Shot Retrieval with Luminance Field Trace Indexing and Geometry Matching
Efficient indexing is a key in content-based video retrieval solutions. In this paper we represent video sequences as traces in an appropriate low dimensional space via luminance ...
Li Gao, Zhu Li, Aggelos K. Katsaggelos
CVPR
2005
IEEE
14 years 12 months ago
Indexing with Unknown Illumination and Pose
The task of identifying 3D objects in 2D images is difficult due to variation in objects' appearance with changes in pose and lighting. The task is further complicated by the...
Ira Kemelmacher, Ronen Basri
CIVR
2003
Springer
269views Image Analysis» more  CIVR 2003»
14 years 3 months ago
HPAT Indexing for Fast Object/Scene Recognition Based on Local Appearance
Abstract. The paper describes a fast system for appearance based image recognition . It uses local invariant descriptors and efficient nearest neighbor search. First, local affine ...
Hao Shao, Tomás Svoboda, Tinne Tuytelaars, ...