Results 221 to 230 of about 262,719 (263)

Graph embedding via multi-scale graph representations

Information Sciences, 2021
Abstract Graph embedding provides an effective way to encode graph nodes as continuous vector representations in a low-dimensional space. The high-order proximities based graph embedding methods can preserve global structures, but the high-order proximities based objectives typically imply non-convex optimization and high computational ...
Yu Xie 0009, Cheng Chen, Maoguo Gong, Deyu Li, A. K. Qin 0001   +4 more
openaire   +2 more sources

A Seamless Representation of Multi-scale Clouds

2009 Fifth International Joint Conference on INC, IMS and IDC, 2009
In digital earth based virtual environments representation of clouds from earth scale to small regional scale is characteristic but not addressed yet. Our methods integrate clouds of different scales and achieve seamless switch between them when view position changes. The paper uses an interactive physical based method to calculate density distribution
Jiangbin Xu, Hanchen Song, Lingda Wu, Chao Yang   +3 more
openaire   +1 more source

Representation of image content with multi-scale segmentation

2013 International Conference on Machine Learning and Cybernetics, 2013
Representation of image content is an important part of image annotation and retrieval, which has become a hot topic in computer vision recently. In order to represent image content more efficiently and accurately, grid based methods such as bag-of-words, were proposed and attracted more attention.
Jing Zhang 0041, Ya-Xin Zhao, Da Li, Zhihua Chen, Yubo Yuan 0001   +4 more
openaire   +1 more source

Multi-scale Representation and Persistency for Shape Description

2008
Extraction, organization and exploitation of topological features are emerging topics in computer vision and graphics. However, such kind of features often exhibits weak robustness with respect to small perturbations and it is often unclear how to distinguish truly topological features from topological noise.
Moroni D, Salvetti M, Salvetti O
openaire   +3 more sources

Multi-scale representation of tribological surfaces

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2002
Many numerical surface topography analysis methods exist today. However, even for the moderately complicated topography of a tribological surface these methods can provide only limited information. The reason is that tribological surfaces often exhibit a non-stationary and multi-scale nature while the numerical methods currently used work well with ...
P Podsiadlo, G. W. Stachowiak
openaire   +1 more source

Multi-Scale Representation of a Digital Line

Cartography and Geographic Information Systems, 1996
A scheme for multi-scale geometrical representation of a digital line is proposed. A digital line is represented as a structured object in which lines at different levels of resolution are represented as lists, quadcodes are used as control mechanism for guiding line simplification at multiple scales of a pyramid, and operators for simplification and ...
Benjamin F. Zhan, Barbara P. Buttenfield
openaire   +1 more source

Multi-scale representations of the motion trajectory

SPIE Proceedings, 2007
At present, mobile computation is developing rapidly for location-based services. For the online GIS or cartography of moving objects, the techniques of progressively refined details greatly reduce the overhead of storage, computation, display, and communication resources.
Hong Shu, Jun Pang, Cuihong Qi
openaire   +1 more source

Multi-scale pyramid pooling for deep convolutional representation

2015 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2015
Compared to image representation based on low-level local descriptors, deep neural activations of Convolutional Neural Networks (CNNs) are richer in mid-level representation, but poorer in geometric invariance properties. In this paper, we present a straightforward framework for better image representation by combining the two approaches.
Donggeun Yoo, Sunggyun Park, Joon-Young Lee, In So Kweon   +3 more
openaire   +1 more source

A Novel Multi-scale Representation for 2-D Shapes

2007
We present an original approach for 2-D shapes description. Based on a multi-scale analysis of closed contours, this method deals with the differential turning angle. The input contour is progressively low-pass filtered by decreasing the filter bandwidth. The output contour thus becomes increasingly smooth. At each iteration of the filtering we extract
Kpalma, Kidiyo, Ronsin, Joseph
openaire   +2 more sources

A new texture representation with multi-scale wavelet feature

SPIE Proceedings, 2006
The existing methods for texture modeling include co-occurrence statistics, filter banks and random fields. However most of these methods lack of capability to characterize the different scale of texture effectively. In this paper, we propose a texture representation which combines local scale feature, amplitude and phase of wavelet modules in multi ...
Sheng Yi, Hanqiang Cao, Xutao Li, Miao Liu   +3 more
openaire   +1 more source