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

1,650 篇 会议
71 篇 期刊文献

馆藏范围

1,721 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

1,438 篇 工学
- 814 篇 电气工程
- 447 篇 计算机科学与技术...
- 175 篇 测绘科学与技术
- 163 篇 电子科学与技术（可...
- 152 篇 仪器科学与技术
- 130 篇 材料科学与工程（可...
- 94 篇 航空宇航科学与技...
- 82 篇 生物医学工程（可授...
- 78 篇 软件工程
- 67 篇 信息与通信工程
- 60 篇 控制科学与工程
- 25 篇 机械工程
- 15 篇 光学工程
- 6 篇 交通运输工程
- 5 篇 环境科学与工程（可...
- 5 篇 安全科学与工程
- 4 篇 力学（可授工学、理...
- 4 篇 土木工程
1,370 篇 理学
- 1,321 篇 物理学
- 161 篇 数学
- 29 篇 化学
- 15 篇 天文学
- 14 篇 大气科学
- 11 篇 生物学
- 5 篇 统计学（可授理学、...
- 4 篇 海洋科学
543 篇 医学
- 439 篇 临床医学
- 106 篇 特种医学
- 22 篇 基础医学(可授医学...
11 篇 管理学
- 10 篇 管理科学与工程(可...
5 篇 农学
2 篇 法学
2 篇 军事学
1 篇 教育学

主题

1,721 篇 detection and tr...
638 篇 sensors
475 篇 image processing
428 篇 algorithm develo...
327 篇 target detection
293 篇 image segmentati...
248 篇 data modeling
182 篇 error analysis
179 篇 cameras
170 篇 feature extracti...
168 篇 visualization
163 篇 image filtering
162 篇 signal processin...
161 篇 neural networks
144 篇 signal to noise ...
142 篇 video
133 篇 databases
132 篇 computer simulat...
129 篇 binary data
121 篇 radar

机构

13 篇 carnegie mellon ...
9 篇 univ chicago dep...
9 篇 lockheed martin ...
8 篇 naval surface wa...
8 篇 nichols research...
8 篇 univ connecticut...
7 篇 jet propulsion l...
6 篇 univ new orleans...
6 篇 suny/buffalo
6 篇 univ. of califor...
6 篇 us army res lab ...
6 篇 air force wright...
5 篇 harvard univ.
5 篇 environm res ins...
5 篇 colorado state u...
5 篇 naval research l...
5 篇 texas instrument...
5 篇 hughes aircraft ...
5 篇 wright state uni...
5 篇 res lab adelphi ...

作者

15 篇 mahalanobis a
15 篇 casasent d
13 篇 bar-shalom yaako...
8 篇 willett peter
8 篇 healey g
8 篇 mahler r
7 篇 ranney k
7 篇 bar-shalom y
7 篇 blair wd
6 篇 ravichandran g
6 篇 gader pd
6 篇 chen xinjia
6 篇 nasrabadi nasser...
5 篇 shen zk
5 篇 zurbrick l
5 篇 pan xiaochuan
5 篇 meola joseph
5 篇 romeo kevin
5 篇 nguyen l
5 篇 frigui hichem

语言

1,702 篇 英文
19 篇 其他

检索条件"主题词=Detection and tracking algorithms"

共 1721 条记录，以下是261-270 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：

DISCRIMINATION OF HANDWRITTEN FROM MACHINE-PRINTED TEXT 4

DISCRIMINATION OF HANDWRITTEN FROM MACHINE-PRINTED TEXT

引用

4th Conference on Hybrid Image and Signal Processing

作者： CHAHAL, S GRUMMAN DATA SYST CORP CHANTILLYVA 22021

ISBN: (纸本)0819415421

The problem of discriminating handwritten from machine-printed text is important for character recognition applications because most recognition algorithms for handwritten text differ considerably from those for machine-printed text. Therefore, an efficient segregation of the two streams is necessary prior to recognition in order to minimize systems cost and complexity. Several techniques have been proposed based on character connectivity and heuristics; but very few achieve results at the 99% level. The technique described in this paper has been proven to yield performance figures in the high 99% on tens of thousands of IRS tax forms and postal envelopes. The technique proposed is based on the use of density of black to white for a given binary field and the overall density of pixels for a gray-scale field as a main discrimination feature. First, the given field is boxed very closely and its boundaries are isolated in space. A horizontal histogram is extracted for this field, and the total number of black pixels is computed. The amount of black pixels per unit area is generated for binary text, and the sum of all pixels is generated for gray-level text. When tested on a large number of samples, these densities cluster following distinct normal distributions for handwritten and machine-printed text respectively. Fuzzy thresholds are set where the two normal curves cross with a confidence interval of 99%. The samples whose densities fall below the threshold are considered handwritten and the samples whose densities fall above the threshold are considered machine-printed.

关键词： Binary data Image processing Statistical analysis Image analysis Fuzzy logic Image segmentation Infrared imaging detection and tracking algorithms Image resolution Optical character recognition

来源：评论

学校读者我要写书评

暂无评论

H-PMHT for Correlated Targets

H-PMHT for Correlated Targets

引用

Conference on Signal and Data Processing of Small Targets

作者： Davey, Samuel J. Wieneke, Monika Gordon, Neil J. Defence Science and Technology Organisation (Australia) Univ. of Bonn (Germany)

ISBN: (纸本)9780819490711

The Histogram Probabilistic Multi-Hypothesis Tracker (H-PMHT) is a parametric track-before-detect algorithm that has been shown to give good performance at a relatively low computation cost. Recent research has extended the algorithm to allow it to estimate the signature of targets in the sensor image. This paper shows how this approach can be adapted to address the problem of group target tracking where the motion of several targets is correlated. The group structure is treated as the target signature, resulting in a two-tiered estimator for the group bulk-state and group element relative position.

关键词： Image sensors detection and tracking algorithms Sensors Motion models Expectation maximization algorithms Image processing Process modeling Statistical analysis Image segmentation Motion estimation

来源：评论

学校读者我要写书评

暂无评论

Joint Segmentation and Spiculation detection for Ill-defined and Spiculated Mammographic Masses

Joint Segmentation and Spiculation Detection for Ill-defined...

引用

Conference on Medical Imaging 2010 - Computer-Aided Diagnosis

作者： Tao, Yimo Lo, Shih-Chung B. Freedman, Matthew T. Xuan, Jianhua Virginia Tech Dept Elect & Comp Engn Arlington VA 22203 USA Georgetown Univ Med Ctr Dept Radiol Washington DC 20007 USA Georgetown Univ Med Ctr Dept Oncol Washington DC 20057 USA

ISBN: (纸本)9780819480255

A learning-based approach integrating the use of pixel level statistical modeling and spiculation detection is presented for the segmentation of mammographic masses with ill-defined margins and spiculations. The algorithm involves a multi-phase pixel-level classification, using a comprehensive group of regional features, to generate a pixel level mass-conditional probability map (PM). Then, mass candidate along with background clutters are extracted from the PM by integrating the prior knowledge of shape and location of masses. A multi-scale steerable ridge detection algorithm is employed to detect spiculations. Finally, all the object level findings, including mass candidate, detected spiculations, and clutters, along with the PM are integrated by graph cuts to generate the final segmentation mask. The method was tested on 54 masses (51 malignant and 3 benign), all with ill-defined margins and irregular shape or spiculations. The ground truth delineations were provided by five experienced radiologists. Area overlap ratio of 0.766 (+/- 0.144) and 0.642 (+/- 0.173) were obtained for segmenting the whole mass and only the margin portion, respectively. Williams index of area and contour based measurements indicated that segmentation results of the algorithm well agreed with the radiologists' delineation. Most importantly, the proposed approach is capable of including mass margin and its extension which are considered as key features for breast lesion analyses.

关键词： Image segmentation Phase modulation Image processing algorithms and systems Tissues detection and tracking algorithms Image enhancement Ridge detection Expectation maximization algorithms Binary data Breast

来源：评论

学校读者我要写书评

暂无评论

Fringe tracking and spatial filtering: phase jumps and dropouts

Fringe tracking and spatial filtering: phase jumps and dropo...

引用

Conference on Optical and Infrared Interferometry

作者： Buscher, David F. Young, John S. Baron, Fabien Haniff, Christopher A. Cavendish Lab Cambridge CB3 0HE England

ISBN: (纸本)9780819472236

Fringe tracking in interferometers is typically analyzed with the implicit assumption that there is single phase associated with each telescope in the array. If the telescopes have apertures significantly larger that T-0 and only partial adaptive optics correction, then the phase measured by a fringe sensor may differ significantly from the "piston" component of the aperture phase. In some cases, speckel noise will cause "branch points" in the measured phase as a function of a time, causing large and sudden jumps in the phase. We present simulations showing these effects in order to understand their implications for the design of fringe tracking algorithms.

关键词： Phase measurement Adaptive optics Spatial filters Wavefronts Interferometers Speckle Telescopes Fringe analysis Sensors detection and tracking algorithms

来源：评论

学校读者我要写书评

暂无评论

Modeling the internal and external constraints of a flexible endoscope for calculating its workspace: Application in transbronchial needle aspiration guidance

Modeling the internal and external constraints of a flexible...

引用

Medical Imaging 2002 Conference

作者： Kukuk, M Siemens Corp Res Princeton NJ USA

ISBN: (纸本)081944426X

In robotics, the term "workspace" denotes that volume of space which the end-effector of a robot call reach. Similarly we denote the workspace of a flexible endoscope as the volume of space that can be occupied by the entire endoscope. From the endoscope's perspective, the workspace is determined by its internal (mechanical) constraints, as well by it's external constraints, like organ geometry and gravity. In this paper we show how to calculate the workspace of a given endoscope under insertion into a patient specific or-an model. We propose a model of an endoscope that takes the internal constraints into account. We also propose an algorithm which simulates the insertion of an endoscope into an organ. This algorithm calculates the workspace by recursively building a spatial tree whose growth is constrained by a series of filter functions. As Kukuk et. at.(1) showed, knowing a real endoscope's workspace can be used to significantly increase the success rate of a "blind" biopsy. We have built an experimental setup (lung phantom) that allows us to assess the accuracy of our model by comparing it to a real endoscope.

关键词： Endoscopes Biopsy Computer simulations Lung Surgery Head detection and tracking algorithms 3D modeling Motion models Robotics

来源：评论

学校读者我要写书评

暂无评论

CONSTANT TIME DIGITAL GEOMETRY algorithms ON THE SCAN MODEL OF PARALLEL COMPUTATION

CONSTANT TIME DIGITAL GEOMETRY ALGORITHMS ON THE SCAN MODEL ...

引用

CONF ON VISION GEOMETRY

作者： DJOKIC, B STOJMENOVIC, I Univ. of Miami (United States) Univ. of Ottawa (Canada)

Assume that a black/white n X n image is stored one per element of a vector of length n2. We consider determining some characteristics of such images using the scan model of parallel computation. The scan model is int... 详细信息

ISBN: (纸本)0819410330

Assume that a black/white n X n image is stored one per element of a vector of length n². We consider determining some characteristics of such images using the scan model of parallel computation. The scan model is introduced by G.E. Blelloch and is a single instruction multiple data (SIMD) vector model of computation. The primitive operation of the model work on vectors (one dimensional arrays) of values, with three types of primitive operations: elementwise arithmetic and logical operations, permutation operation, and scan operation, a type of prefix computation (a scan operation takes a binary associative operator (direct product) and a vector [a₁, ..., a_n] and returns the vector [a₁, a₁(direct product)a₂, ..., a₁(direct product)a₂(direct product) ... (direct product)a_n]). We show that many important characteristics of binary images can be determined in constant time on the scan model of parallel computation. These include the convex hull construction, diameter, width, smallest enclosing box, perimeter, area, detecting digital convexity, parallel and point visibility (determining for each pixel of the image the portion that is visible, i.e. not obstructed by any black pixel, in given direction from infinity or from given point, respectively) of an image, smallest, largest and Hausdorff distances between two images, linear separability of two images, and the recognition of digital lines, rectangles and arcs.

关键词： Binary data Digital imaging Image processing Visibility Vision geometry detection and tracking algorithms Visual process modeling Image segmentation Data modeling Information operations

来源：评论

学校读者我要写书评

暂无评论

HIGH-RESOLUTION ANISOTROPIC 3D EDGE DETECTOR FOR MEDICAL IMAGES

HIGH-RESOLUTION ANISOTROPIC 3D EDGE DETECTOR FOR MEDICAL IMA...

引用

Conference on Image Processing

作者： LIOU, SP SINGH, A SIEMENS CORP RES INC DEPT IMAGINGPRINCETONNJ 08540

ISBN: (纸本)081941462X

Advances in sensor and computer technology are resulting in an increased use of three-dimensional images in medical diagnosis. Three dimensional edge detection provides 3D anatomical representation that aids in planning and executing certain surgical procedures as well as in registering images of different modalities. Existing 3D edge detectors are 3D generalizations of 2D edge detectors. Most have limited resolution in boundary representation (subject to the resolution of imaging modality) and limited ability to directly deal with anisotropic sampling which occurs frequently in medical images. This paper presents a formal formulation of the 3D edge detection problem for anisotropically sampled images. Our approach differs from the previous approaches in the following ways: (1) a 3D edge detector is developed for data on anisotropic grids, (2) a modified version of the marching cube algorithm is used to locate the zero-crossings of the second-order derivatives, and (3) a connected component algorithm is developed for grouping zero- crossing surfaces into a set of disjoint surfaces. We show experimental results on many clinically acquired CT and MR images.

关键词： 3D image processing Sensors Algorithm development Edge detection detection and tracking algorithms Image processing Medical imaging Image resolution Computed tomography Image sensors

来源：评论

学校读者我要写书评

暂无评论

A Super-resolution Algorithm for Enhancement of FLASH LIDAR Data: Flight Test Results

A Super-resolution Algorithm for Enhancement of FLASH LIDAR ...

引用

Conference on Computational Imaging XII

作者： Bulyshev, Alexander Amzajerdian, Farzin Roback, Eric Reisse, Robert Analyt Mech Associates Inc Hampton VA 23666 USA NASA Langley Res Ctr Hampton VA 23681 USA

ISBN: (纸本)9780819499370

This paper describes the results of a 3D super-resolution algorithm applied to the range data obtained from a recent Flash Lidar helicopter flight test. The flight test was conducted by the NASA's Autonomous Landing and Hazard Avoidance Technology (ALHAT) project over a simulated lunar terrain facility at NASA Kennedy Space Center. ALHAT is developing the technology for safe autonomous landing on the surface of celestial bodies: Moon, Mars, asteroids. One of the test objectives was to verify the ability of 3D super-resolution technique to generate high resolution digital elevation models (DEMs) and to determine time resolved relative positions and orientations of the vehicle. 3D super-resolution algorithm was developed earlier and tested in computational modeling, and laboratory experiments, and in a few dynamic experiments using a moving truck. Prior to the helicopter flight test campaign, a 100mX100m hazard field was constructed having most of the relevant extraterrestrial hazard: slopes, rocks, and craters with different sizes. Data were collected during the flight and then processed by the super-resolution code. The detailed DEM of the hazard field was constructed using independent measurement to be used for comparison. ALHAT navigation system data were used to verify abilities of super-resolution method to provide accurate relative navigation information. Namely, the 6 degree of freedom state vector of the instrument as a function of time was restored from super-resolution data. The results of comparisons show that the super-resolution method can construct high quality DEMs and allows for identifying hazards like rocks and craters within the accordance of ALHAT requirements.

关键词： LIDAR Super resolution 3D image processing Algorithm development Image processing 3D modeling detection and tracking algorithms Spatial resolution Navigation systems Pulsed laser operation

来源：评论

学校读者我要写书评

暂无评论

ESTIMATION OF TARGET SCATTERING CENTERS USING NEURAL NETWORK LEARNING algorithms

ESTIMATION OF TARGET SCATTERING CENTERS USING NEURAL NETWORK...

引用

2ND INTERNATIONAL CONF ON AUTOMATIC OBJECT RECOGNITION

作者： JOUNY, I Lafayette College (United States)

ISBN: (纸本)0819408654

An adaptive neural network learning algorithm is used to estimate the location of radar targets scattering centers. The performance of the implemented spectral estimation scheme depends on learning rate, number of training vectors, and the length of each training vector. The neural network learning spectral estimation algorithms used in this study is an attractive alternative to traditional high resolution spectral estimation schemes because the number of spectral peaks depends not only on a model order assigned a priori, but also on the level of training, learning rate, and convergence. Also, neural networks are adaptive to changes in data, fault tolerant, and may be implemented using analog circuitry. Scattering features extracted using neural networks are used for target classification. The performance of the proposed target recognition scheme is compared with that of nearest neighbor based classifier.

关键词： Neural networks Scattering detection and tracking algorithms Evolutionary algorithms Radar Fourier transforms Target recognition Object recognition Signal to noise ratio Data modeling

来源：评论

学校读者我要写书评

暂无评论

Enhancing the applications space of diffraction based overlay metrology by increasing throughput and target pitch flexibility 34

Enhancing the applications space of diffraction based overla...

引用

Conference on Metrology, Inspection, and Process Control for Microlithography XXXIV

作者： Mathijssen, Simon Heijmerikx, Herman Farhadzadeh, Farzad Noot, Marc van der Sneppen, Lineke Shen, Longfei Jia, Fei Xu, Jolly Qin, Huajun den Boef, Arie Mc Namara, Elliott Bhattacharyya, Kaustuve Fang, Chao Feng, Yaobin ASML Veldhoven Netherlands YMTC Wuhan Hubei Peoples R China

ISBN: (数字)9781510634183

ISBN: (纸本)9781510634183

Metrology requirements at advanced nodes are not only tightening on specifications but also broadening in terms of flexibility needed to cover variety of product stacks. Metrology targets need to be process compatible and at the same time these targets should also be readable by the metrology system. In some cases, process conditions require a target pitch that is large compared to the wavelength used by the metrology system. Examples of these situations include for instance topography transfer or stacks with thick resist (for e.g. 3D-NAND). Traditionally overlay is extracted from the asymmetry in the positive and negative first diffraction order generated from mu DBO targets. However, when the pitch is large, the targets generate multiple higher diffraction orders. Current state-of-the-art diffraction based overlay systems do not take into account the effect of these higher diffraction orders and typically only select the first diffraction order. This is done by reducing the pitch of the target, tuning the wavelength or by changing the angle of incidence of the illumination light. To address wavelength over pitch flexibility an advanced algorithm was introduced on a new metrology system in the fab, providing full flexibility in the selection of measurement wavelength and pitch. To obey the specifications on accuracy and throughput, we will present a new metrology system that is, compared to its predecessor, about 2x faster and able to measure more accurately because of the ability to measure multiple wavelengths within the same time frame.

关键词： Diffraction Metrology Overlay metrology Diffraction gratings Semiconducting wafers Polarization Silicon detection and tracking algorithms

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173页 << < 23 24 25 26 27 28 29 30 31 32 > >>

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：