检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

132 篇 会议
29 篇 期刊文献
23 册 图书
6 篇 学位论文

馆藏范围

190 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

142 篇 工学
- 91 篇 计算机科学与技术...
- 80 篇 软件工程
- 48 篇 电气工程
- 16 篇 光学工程
- 6 篇 机械工程
- 5 篇 控制科学与工程
- 4 篇 电子科学与技术（可...
- 3 篇 生物医学工程（可授...
- 3 篇 生物工程
- 2 篇 仪器科学与技术
- 2 篇 材料科学与工程（可...
- 1 篇 力学（可授工学、理...
- 1 篇 动力工程及工程热...
- 1 篇 信息与通信工程
- 1 篇 建筑学
- 1 篇 土木工程
- 1 篇 化学工程与技术
- 1 篇 石油与天然气工程
- 1 篇 交通运输工程
102 篇 理学
- 64 篇 数学
- 63 篇 物理学
- 4 篇 生物学
- 2 篇 化学
- 2 篇 地球物理学
- 1 篇 系统科学
- 1 篇 统计学（可授理学、...
14 篇 医学
- 14 篇 临床医学
7 篇 管理学
- 5 篇 管理科学与工程(可...
- 2 篇 图书情报与档案管...
1 篇 教育学
- 1 篇 心理学(可授教育学...
1 篇 艺术学

主题

85 篇 computer graphic...
34 篇 machine vision
34 篇 computer vision ...
34 篇 visualization
17 篇 computer vision
16 篇 image segmentati...
12 篇 image processing...
10 篇 computer imaging...
9 篇 three dimensiona...
9 篇 image processing
8 篇 discrete mathema...
8 篇 visual process m...
7 篇 computer science
7 篇 application soft...
7 篇 pattern recognit...
7 篇 computer-aided e...
6 篇 simulation and m...
6 篇 algorithm develo...
6 篇 curve fitting
5 篇 computational ge...

机构

5 篇 rice univ.
4 篇 texas a&m univ.
4 篇 univ. of waterlo...
3 篇 purdue univ.
3 篇 department of ma...
2 篇 inria
2 篇 florida state un...
2 篇 univ utah sci co...
2 篇 mathematics depa...
2 篇 department of in...
2 篇 univ of southern...
2 篇 cnr imati genoa
2 篇 george washingto...
2 篇 laboratoire ljk ...
2 篇 university of to...
2 篇 stony brook univ...
1 篇 mpi informat d-6...
1 篇 dept. of compute...
1 篇 naval undersea w...
1 篇 estrada dona cas...

作者

4 篇 tom lyche
3 篇 knut mørken
3 篇 larry l. schumak...
3 篇 chui ck
3 篇 chan ak
3 篇 marie-laurence m...
3 篇 michael floater
3 篇 ponce jean
3 篇 kriegman david j...
2 篇 jake k. aggarwal
2 篇 livesu marco
2 篇 theodoracatos va...
2 篇 liu q
2 篇 pottmann h
2 篇 zha j
2 篇 loew mh
2 篇 wang sen
2 篇 warren j
2 篇 bartels rh
2 篇 defigueiredo rjp

语言

177 篇 英文
8 篇 其他
5 篇 中文

检索条件"任意字段=Curves and Surfaces in Computer Vision and Graphics III"

共 190 条记录，以下是121-130 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

FAST APPROXIMATE FACTOR-ANALYSIS 2

FAST APPROXIMATE FACTOR-ANALYSIS

引用

CONF ON curves AND surfaces IN computer vision AND graphics 2

作者： WICKERHAUSER, MV Washington Univ. (United States)

ISBN: (纸本)081940747X

The principal orthogonal factor analysis or Karhunen-Loeve algorithm may be sped up by a low-complexity preprocessing step. A fast transform is selected from a large library of wavelet-like orthonormal bases, so as to maximize transform coding gain for an ensemble of vectors. Only the top few coefficients in the new basis, in order of variance across the ensemble, are then decorrelated by diagonalizing the autocovariance matrix. The method has computational complexity O(d2 log d + d'3) and O(d log d + d'2) respectively for training and classifying a d-dimensional system, where d' << d. One application is described, the reduction of an ensemble of 16,384 pixel face images to a 10 parameter space using a desktop computer, retaining 90% of the variance of the ensemble.

关键词： Wavelets computer vision technology Factor analysis Machine vision computer graphics Visualization Digital filtering Computing systems Distance measurement Mirrors

来源：评论

学校读者我要写书评

暂无评论

QUALITATIVE DESCRIPTORS FOR DIGITAL CONTOUR SEGMENTS 2

QUALITATIVE DESCRIPTORS FOR DIGITAL CONTOUR SEGMENTS

引用

CONF ON curves AND surfaces IN computer vision AND graphics 2

作者： BAUMMER, KS EOM, KB LOEW, MH George Washington Univ. (United States)

ISBN: (纸本)081940747X

Earlier studies of the human vision system suggest that a complex object may be recognized from the qualitative features associated with its boundary. Since the human vision system uses qualitative features for object recognition, it is extremely robust to deformation caused by noise, obstruction, scale change, or optical distortion. We considered various qualitative descriptors for digital images. The descriptors developed in this research are based on the estimated curvature function from digital boundaries and can discriminate features such as straightness of a contour segment, perpendicularity of two contour segments, parallelness of two straight contour segments, parallelness of two curved contour segments in a global sense, and the direction of convergence if two straight contour segments are not parallel. We demonstrated that the qualitative descriptors developed in this paper can be applied for identification of elementary shapes, such as cylinders, bricks, cones, etc. We also discussed the recognition of more complex shapes after decomposing them into simpler components.

关键词： Image segmentation computer vision technology Machine vision Visualization computer graphics Visual process modeling Algorithm development Human vision and color perception Statistical analysis Error analysis

来源：评论

学校读者我要写书评

暂无评论

RANGE IMAGE SEGMENTATION BY CONTROLLED-CONTINUITY SPLINE APPROXIMATION FOR PARALLEL COMPUTATION 2

RANGE IMAGE SEGMENTATION BY CONTROLLED-CONTINUITY SPLINE APP...

引用

CONF ON curves AND surfaces IN computer vision AND graphics 2

作者： MAITRE, G HUGLI, H Univ. de Neuchatel (Switzerland)

ISBN: (纸本)081940747X

A classical approach formulates surface reconstruction in terms of a variational problem by using two-dimensional surfaces defined by generalized spline functions. We present such an approach in the case of range image segmentation. The distinction of our approach lies in the way the discontinuities are detected. The spline is constrained to stay within a certain maximal distance to the discrete measured data, but is free as long as the maximum distance is not reached. Discontinuity emerges on points where the maximum distance constrains the spline. This method leads to a relaxation algorithm that solves the segmentation iteratively, by locally applying a relation that is close to the diffusion equation in the case of the membrane spline. Being iterative and local, the algorithm is suited for parallelism. We applied the method to range data from laser scanners using two different surface models: the membrane spline (more adequate for polyhedric objects), and the thin plate spline (more adequate for curved objects). The results illustrate the practical performance of this method which is simple, parallel, and controlled by few parameters.

关键词： Image segmentation Machine vision computer graphics computer vision technology Visualization Data modeling Signal processing Nanoimprint lithography Image processing Interference (communication)

来源：评论

学校读者我要写书评

暂无评论

PERFORMANCE IN NOISE OF A DIFFUSION-BASED SHAPE DESCRIPTOR 2

PERFORMANCE IN NOISE OF A DIFFUSION-BASED SHAPE DESCRIPTOR

引用

CONF ON curves AND surfaces IN computer vision AND graphics 2

作者： LOEW, MH HWANG, SY George Washington Univ. (United States)

ISBN: (纸本)081940747X

A diffusion-like process, analogous to the thermodynamic diffusion of heat or of gas molecules, is used to describe the shape of two- or three-dimensional objects. It is effective at identifying extrema of curvature as would be used to segment the boundary, and also at characterizing the types of line segments that lie between the extrema. Both of those operations are essential for qualitative descriptions of images, as would be required by an approach based on geometrical icons (geons). The region need not be convex. The descriptor is invariant to several common transformations, including rotation. It can be implemented easily on parallel machines, does not pose problems with the definition of slope, and appears to be capable of dealing with the matching of partially occluded objects. The descriptor's performance is essentially independent of user-supplied parameters. It is shown that noise does not affect the accuracy of identification of the extrema -- a simple stopping rule for the process ensures that the structural parts of the boundary are preserved while the noise is suppressed. The procedure is compared and contrasted to scale-based boundary-description methods.

关键词： Diffusion Particles Image segmentation Visualization Shape analysis computer graphics computer simulations computer vision technology Machine vision Thermodynamics

来源：评论

学校读者我要写书评

暂无评论

KINEMATICS OF INTERFACE EVOLUTION WITH APPLICATION TO ACTIVE CONTOUR MODELS 2

KINEMATICS OF INTERFACE EVOLUTION WITH APPLICATION TO ACTIVE...

引用

CONF ON curves AND surfaces IN computer vision AND graphics 2

作者： ROUGON, N Telecom Paris and Labs. d'Electronique Philips (France)

ISBN: (纸本)081940747X

In physics, a large class of problems, such as crystal growth or flame fronts propagation, are concerned with the motion of a deformable boundary separating time-dependent domains in which the interface itself satisfies an equation of motion. Recently, similar questions have been introduced in image processing through the concept of physically based active contour models or snakes. In snake modeling, a deformable boundary endowed with elastic properties interacts with a constant external field derived from image properties. In the most general case, the interfacial motion is governed by a set of partial differential equations that nonlinearily couple interface intrinsics and external fields. In this paper, we present a general study of the kinematics of deformable regular (d-1)-dimensional interfaces evolving according to a first- order dynamic in a d-dimensional (d >= 2) space, in terms of their intrinsic geometric properties. We formulate local equations of motion and derive evolution theorems. These results are then applied to the kinematical study of a specific 2-dimensional active contour model when its optimization is performed via a first-order deformation process. This provides a significant insight in the instantaneous behavior of snake-like models as well as the nature of their steady-states.

关键词： Kinematics computer vision technology Machine vision computer graphics Interfaces Motion models Visualization Mathematical modeling Physics Crystals

来源：评论

学校读者我要写书评

暂无评论

VECTOR FIELD INTERPOLATION USING ROBUST STATISTICS 2

VECTOR FIELD INTERPOLATION USING ROBUST STATISTICS

引用

CONF ON curves AND surfaces IN computer vision AND graphics 2

作者： ZHONG, JL WENG, JY HUANG, TS Univ. of Illinois/Urbana-Champaign (United States)

ISBN: (纸本)081940747X

This paper investigates the problem of interpolating, under physical constraints, 3-D vector fields from sample vectors at irregular positions. This problem arises from analysis of fluid motion, but our results can also be used in such areas as geometric modeling, data approximation, and the analysis of other types of nonrigid motion. The algorithm proposed in this paper combines the generalized multivariate quadratic interpolation and physical constraints into one step to form an over-determined linear equation system. The least squares solution of this system gives the coefficients of interpolation. Since the interpolation is done in one step and is noniterative, it is computationally efficient. We utilize the methods in robust statistics to detect outliers in the sample data so that the result remains stable in the presence of gross errors. Another merit of our scheme is that by incorporating physical constraints into linear equation system, the algorithm takes into account the characteristics of vector field and is much less sensitive to noise. The algorithm is applied to both synthesized and real data representing 3-D fluid vector field. With the application to 3-D fluid flow in mind, we study the applicability of physical constraints in fluid kinematics and analyze the sources of noise from the real data acquisition. A comparison between our algorithm with previous work shows the robustness of our algorithm. The results of interpolating real flow data are presented.

关键词： Error analysis Particles Statistical analysis computer vision technology Machine vision computer graphics Visualization Detection and tracking algorithms Velocity measurements Velocimetry

来源：评论

学校读者我要写书评

暂无评论

MEASUREMENT OF BRAIN COMPARTMENT VOLUMES FROM MRI DATA USING REGION GROWING AND MIXED VOLUME METHODS 2

MEASUREMENT OF BRAIN COMPARTMENT VOLUMES FROM MRI DATA USING...

引用

CONF ON curves AND surfaces IN computer vision AND graphics 2

作者： HILLMAN, GR KENT, TA AGRIS, JM Univ. of Texas/Galveston and Rice Univ. (United States)

ISBN: (纸本)081940747X

MRI data were collected from normal control subjects and from patients having AIDS or closed head injury (CHI). Both T1-weighted and T2-weighted images were collected; in some cases transverse images were made, while in others coronal images were collected. The images were analyzed in three ways, each of which determined white matter (WM), gray matter (GM), and CSF volume, and the results were compared. Segmentation by interactive threshold selection or manual outlining is still the most commonly used method for compartment volume analysis. This method was applied to the control and AIDS brains, with repetition by two trained observers. These results were compared with those from a second method in which each voxel is viewed statistically as a mixture of whichever two compartments are closest at that anatomical location. Automatic thresholding, followed by regional skeletonization, is used to identify a small set of pixels in each slice that represent the central portion of each of the three regions of interest. All pixels in the slice are then subjected to an interpolation procedure in which their fractional composition is determined from these three intensity values. The intensities from the T1-weighted images show contrast between GM, WM, and CSF, and these are used for the volume computation. Geometric information from the T2-weighted image is used for the location of the authentic compartment locations, as these images show strong contrast between the CSF and the skull. The third method studied is based on a three-dimensional region-growing algorithm that estimates each volume compartment by growing a volume from a seed point, limiting the growth based on spatial and feature criteria. The feature bounds are set restrictively so that GM, WM, and CSF regions are not contiguous, leaving a volume of mixed voxels between the regions. The distributions of intensities in each region are then used to interpolate the most likely composition of the unassigned voxels, so

关键词： Brain Tissues Image segmentation Neuroimaging Visualization computer graphics computer vision technology Machine vision Skull Magnetic resonance imaging

来源：评论

学校读者我要写书评

暂无评论

BOUNDARY DESCRIPTION AND MEASUREMENT WITH SUB-PIXEL-VOXEL ACCURACY 11

BOUNDARY DESCRIPTION AND MEASUREMENT WITH SUB-PIXEL-VOXEL AC...

引用

Conference C: Image, Speech, and Signal Analysis, at the 11th IAPR International Conference on Pattern Recognition

作者： MULLIKIN, JC DELFT UNIV TECHNOL FAC APPL PHYSPATTERN RECOGNIT GRP2600 GA DELFTNETHERLANDS

ISBN: (纸本)0818629207

A sub-image-element (imel) model is developed for boundary-based measurements. Using Laplacian-Of-Gaussian operators in combination with a facet model, boundary points in an image are detected with sub-imel accuracy. A boundary trace of these points is inferred using the methods of curvature consistency. From the boundary trace, separate boundaries are identified and analyzed. Types of measurements extracted include whether a boundary is open or closed, its length (area in 3-D), average curvature and bending energy. For display, boundaries are modeled with Bezier curves/surfaces and plotted/rendered with graphics tools. This method is also designed to directly process anisotropically sampled images. © 1992 IEEE.

关键词： computer vision

来源：评论

学校读者我要写书评

暂无评论

Geometric modelling for computer vision 2

Geometric modelling for computer vision

引用

curves and surfaces in computer vision and graphics II 1991

作者： Kriegman, David J. Ponce, Jean Center for Systems Science Department of Electrical Engineering Yale University New HavenCT06520-1968 United States Beckman Institute Department of Computer Science University of Illinois UrbanaIL61801 United States

computer vision faces the challenge of exploiting the CAD models available for many manufactured objects. Recently, a variety of new algorithms have been developed that rely on symbolic object representations for recognizing curved three-dimensional objects from images. This paper presents a modelling system for constructing these representations from parametric and implicit algebraic surface specifications. A combination of homotopy continuation and curve tracing is used to compute set operations. Specifically, an algorithm for tracing curves defined implicitly in IRn+1 by n polynomial equations in n + 1 variables is presented which correctly characterizes the topology of the intersection curves and respects singular points. The curve tracing algorithm is also used to render line drawings for which parametric representations of occluding contours are unavailable. Hidden lines are easily removed by explicitly constructing an image structure graph of the smooth curve branches and singular points;it is then sufficient to trace a ray at a single point on each curve branch. A preliminary parallel implementation, distributed over a network of SPARC stations, appears promising. For objects modeled by this system, algorithms for constructing their aspect graph, computing their stable poses and recognizing them in different types of images have been developed. © 1992 SPIE. All rights reserved.

关键词： computer vision

来源：评论

学校读者我要写书评

暂无评论

Boundary description and measurement with sub-pixel/-voxel accuracy

Boundary description and measurement with sub-pixel/-voxel a...

引用

International Conference on Pattern Recognition

作者： J.C. Mullikin Pattern Recognition Group Faculty of Applied Physics Delft University of Technnology Delft Netherlands

A sub-image element (imel) model is developed for boundary-based measurements. Using Laplacian-Of-Gaussian operators in combination with a facet model, boundary points in an image are detected with sub-imel accuracy. A boundary trace of these points is inferred using the methods of curvature consistency. From the boundary trace, separate boundaries are identified and analyzed. Types of measurements extracted include whether a boundary is open or closed, its length (area in 3-D), average curvature and bending energy. For display, boundaries are modeled with Bezier curves/surfaces and plotted/rendered with graphics tools. This method is also designed to directly process anisotropically sampled images.< >

关键词： Face detection Area measurement Energy measurement Length measurement Displays Rendering (computer graphics) graphics Design methodology Process design Anisotropic magnetoresistance

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共19页 << < 9 10 11 12 13 14 15 16 17 18 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：