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CVPR
2008
IEEE
14 years 9 months ago
Spatio-temporal Saliency detection using phase spectrum of quaternion fourier transform
Salient areas in natural scenes are generally regarded as the candidates of attention focus in human eyes, which is the key stage in object detection. In computer vision, many mod...
Chenlei Guo, Qi Ma, Liming Zhang
TCSV
2010
13 years 2 months ago
New Fourier-Statistical Features in RGB Space for Video Text Detection
In this paper, we propose new Fourier-Statistical Features (FSF) in RGB space for detecting text in video frames of unconstrained background, different fonts, different scripts and...
Palaiahnakote Shivakumara, Trung Quy Phan, Chew Li...
BMCBI
2008
139views more  BMCBI 2008»
13 years 7 months ago
Hierarchical structure of cascade of primary and secondary periodicities in Fourier power spectrum of alphoid higher order repea
Background: Identification of approximate tandem repeats is an important task of broad significance and still remains a challenging problem of computational genomics. Often there ...
Vladimir Paar, Nenad Pavin, Ivan Basar, Marija Ros...
IROS
2009
IEEE
184views Robotics» more  IROS 2009»
14 years 2 months ago
Fast and robust photomapping with an Unmanned Aerial Vehicle (UAV)
— A fast and robust method for visual odometry based on the Fourier-Mellin Invariant (FMI) descriptor is presented. It extends previous FMI based approaches in two ways. First, a...
Heikow Bülow, Andreas Birk
CVPR
2003
IEEE
14 years 9 months ago
Direct 3D-Rotation Estimation from Spherical Images via a Generalized Shift Theorem
Omnidirectional images arising from 3D-motion of a camera contain persistent structures over a large variation of motions because of their large field of view. This persistence ma...
Ameesh Makadia, Kostas Daniilidis