搜索结果: 1-15 共查到“信息与通信工程 Representation”相关记录15条 . 查询时间(0.093 秒)
Multi-Representation Geographic Data Organization Method Dedicated for Vector-Based WebGIS
Multi-Representation Data Structure Vector Data Zoom Quadtree Vector Pyramid WebGIS WFS
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2015/12/17
The paper proposed a Quadtree-based vector data structure which supports multi-representation of geographic data: Zoom Quadtree, it aims to meet the requirement of vector-based WebGIS in efficient ret...
Dynamic Cartographic Representation of Spatio-Temporal Data
Spatio-temporal Database Spatio-temporal Change Pattern Dynamic symbol base
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2015/12/1
As efforts grow to develop spatio-temporal database systems and temporal geographic information systems that are capable of conveying how geographic phenomena change, it is important to associate the ...
Monoscale Ridgelets for the Representation of Images with Edges
Edges Partitioning Local Fourier Transform (JPEG) Ridge functions Ridgelets Radon transform Nonlinear approximation
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2015/6/17
In a previous paper [1], the author introduced a new system for representing multivariate functions, namely, the ridgelets. In a following article [3], ridgelets were shown to be optimal for represent...
Curvelets–A Surprisingly Effective Nonadaptive Representation For Objects with Edges
Curvelets Nonadaptive Representation Objects with Edges
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2015/6/17
It is widely believed that to efficiently represent an otherwise smooth object with discontinuities along edges, one must use an adaptive representation that in some sense ‘tracks’ the shape of the di...
Ridgelets and Their Derivatives:Representation of Images with Edges
Ridgelets Derivatives Images with Edges
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2015/6/17
This paper reviews the development of several recent tools from computational harmonic analysis. These new systems are presented under a coherent perspective, namely, the representation of bivariate f...
Curvelets,Multiresolution Representation, and Scaling Laws
Edges Partitioning Subband Filtering Local Fourier Transform Ridge functions Ridgelets Multiscale ridgelets Pyramids
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2015/6/17
Curvelets provide a new multiresolution representation with several features that set them apart from existing representations such as wavelets, multiwavelets, steerable pyramids, and so on. They are ...
Astronomical Image Representation by the Curvelet Transform
methods Data Analysis-techniques Image Processing
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2015/6/17
We outline digital implementations of two newly developed multiscale representation systems, namely, the ridgelet and curvelet transforms. We apply these digital transforms to the problem of restoring...
HAND-HELD COGNITION: DOES LEARNING SUFFER WHEN AN EXTERNAL REPRESENTATION INTERFACE STYLE IS USED?
information facilitates certain trials
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2015/5/27
Previous research has shown that external representation of information facilitates cognitive processing by requiring less recall and reducing the need for working memory. The assumption is that all t...
Discrete Array Representation of Continuous Space-time Source Distributions
slant stack transform ultra-wide band short-pulse signals continuous space-time source distribution
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2009/7/28
We consider the realization of a continuous space-time source distributions using a sparse non-uniform point-source array. The construction determines the largest possible cells corresponding to the l...
V-LGBP: Volume Based Local Gabor Binary Patterns for Face Representation and Recognition
V-LGBP Gabor Binary Patterns Face Representation
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2010/12/17
In this paper, we propose volume based local Gabor binary patterns (V-LGBP) for face
representation and recognition. In our method, the Gabor feature set of each gray image is regarded as a three dim...
A Scene Representation Application implementing LASeR Using Object-Based Timing Model
LASeR rich-media scene description interactive
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2010/12/17
In this paper, we present a multimedia scene representation application implementing MPEG4-Part 20 Lightweight Application Scene Representation standard (LASeR). In an interactive multimedia scene, we...
Spatial relationship representation for visual object searching
Spatial relationship representation visual object searching
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2010/12/17
Image representation has been a key issue in vision research for many years. In order to represent various local image patterns or objects effectively, it is important to study the spatial relationshi...
Scalable Wyner-Ziv Video Coding with Adaptive Bit-Plane Representation
Scalable Wyner-Ziv Video Coding Adaptive Bit-Plane Representation
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2010/12/20
Scalable Wyner-Ziv video coding is desirable, especially for mobile devices with limited computational resources and bandwidth. However, the conventional bit-plane representation used in hybrid video ...
A Web Site Mining Algorithm Using the Multiscale Tree Representation Model
Web Site Mining Algorithm the Multiscale Tree Representation Model
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2010/12/14
Web site mining, which aims at automatically discovering and classifying topic-specific web sites from the World
Wide Web, has attracted increasing attention as indicated by the exponential growth of...
A Web Site Mining Algorithm Using the Multiscale Tree Representation Model
Web Site Mining Algorithm the Multiscale Tree Representation Model
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2010/12/14
A Web Site Mining Algorithm Using the Multiscale Tree Representation Model.