Results 261 to 270 of about 137,229 (305)

Stable estimation of image orientation

Proceedings of 1st International Conference on Image Processing, 2002
We examine the performance of phase-based and energy-based techniques for estimating image orientation, emphasizing measurement stability under deformations that commonly occur in natural images. We also present a new energy-based technique for estimating multiple orientations in a neighbourhood and for reliably extracting multiple orientations from ...
Leif Haglund, David J. Fleet
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Orientation-Aware Regression for Oriented Bounding Box Estimation

2018 15th IEEE International Conference on Advanced Video and Signal Based Surveillance (AVSS), 2018
Oriented bounding box estimation is an essential element for object detection since objects in real images consist of multiple orientations. State-of-the-art bounding box regression utilize linear layers and ReLU activations with an oriented feature as input, however these methods do not directly use the feature orientation.
Ryusuke Nosaka, Hidenori Ujiie, Takaharu Kurokawa   +2 more
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Autocorrelation fitting for texture orientation estimation

Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429), 2004
The problem of short-term texture orientation is dealt with in this paper through autocorrelation fitting. Actually, the computation of the estimated autocorrelation sequence from a textured oriented image brings about the apparition of an oriented pattern.
Sourice, Anthony, Plantier, Guy, Saumet, Jean Louis   +2 more
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Orientation estimation of 3D surface Patches

Computer Vision, Graphics, and Image Processing, 1990
Abstract Orientation estimation of a surface patch is an essential step in an automatic inspection job or a 3D template matching scheme for object recognition. Two main problems of the estimation are non-uniform surface sampling and self-occlusion. To solve these problems, we propose to use a 3D spherical window to extract the correct patch and to ...
Hung-Tat Tsui, Ming-Hong Chan, Kin-Cheong Chu, Shao-Hua Kong   +3 more
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On an estimation oriented routing protocol

Proceedings of the 2010 American Control Conference, 2010
Consider the problem of estimation of a linear time-invariant process across a communication channel such that the sensor data is delayed by a stochastic time-varying delay that can potentially be infinite. Thus, the data may arrive at the receiver delayed and out of order, or may simply be lost. There are two main contributions of this work.
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Polarization orientation estimation and applications: a review

IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477), 2004
We review estimation algorithms and applications of polarization orientation angle shifts induced by terrain slopes. We develop a unified analysis of estimation algorithms based on circular polarization covariance matrix. The effect of radar frequency, scattering media, and polarimetric calibration will also be discussed. Applications to DEM generation,
Jong-Sen Lee, Dale L. Schuler, Thomas L. Ainsworth, Wolfgang-Martin Boerner   +3 more
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Estimation of the k-Orientability Threshold

2008 The 9th International Conference for Young Computer Scientists, 2008
Let G(n,m) be an undirected random graph with n vertices and m multiedges that may include loops, where each edge is realized by choosing its two vertices independently and uniformly at random with replacement from the set of all n vertices. The random graph G(n,m) is said to be k-orientable, where k ges 2 is an integer, if there exists an orientation ...
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Lower bounds for the divergence of orientational estimators

IEEE Transactions on Information Theory, 2001
Summary: This paper is concerned with the properties of estimators in \(O(n,p)\), the \(n\times p\) orthogonal matrices. It is shown that it is natural to introduce the notion of a parallel estimator where the expected value of the estimator must lie in the normal space (orthogonal complement of the tangent space) of \(O(n,p)\) at the true value.
Robert J. Valkenburg, Ramakrishna Kakarala   +1 more
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Object-oriented Software Estimation

Proceedings. Technology of Object-Oriented Languages. TOOLS 26 (Cat. No.98EX176), 2005
Jerry Smith is the Chief Technical Officer (CTO) of a global consulting and training company that specializes in object-oriented technology. He has specialized in software development, objectoriented technology, and management for over 15 years. He is the principle scientist for a long-term, multiproject research effort focusing on the best-practice ...
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Visual Gyroscope for Accurate Orientation Estimation

2015 IEEE Winter Conference on Applications of Computer Vision, 2015
A visual gyroscope is a device which estimates camera 3D rotation using image input, in our case a monocular video. Contrary to traditional Structure-From-Motion (SFM) or visual SLAM, we address the case where only the rotation must be found, whereas no translation estimate is desired. That case can be solved without computing an explicit 3D map of the
Wilfried Hartmann, Michal Havlena, Konrad Schindler   +2 more
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