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

3,867 篇 会议
193 篇 期刊文献
23 册 图书
2 篇 学位论文

馆藏范围

4,086 篇 电子文献
10 种 纸本馆藏

日期分布

学科分类号

2,839 篇 工学
- 1,388 篇 电气工程
- 1,379 篇 计算机科学与技术...
- 570 篇 软件工程
- 465 篇 信息与通信工程
- 280 篇 测绘科学与技术
- 206 篇 生物医学工程（可授...
- 200 篇 仪器科学与技术
- 184 篇 电子科学与技术（可...
- 181 篇 光学工程
- 99 篇 机械工程
- 86 篇 控制科学与工程
- 69 篇 材料科学与工程（可...
- 59 篇 航空宇航科学与技...
- 49 篇 生物工程
- 24 篇 化学工程与技术
- 20 篇 核科学与技术
- 17 篇 动力工程及工程热...
2,101 篇 理学
- 1,687 篇 物理学
- 504 篇 数学
- 65 篇 生物学
- 45 篇 系统科学
- 43 篇 统计学（可授理学、...
- 42 篇 化学
1,281 篇 医学
- 1,181 篇 临床医学
- 128 篇 特种医学
- 39 篇 基础医学(可授医学...
- 27 篇 药学(可授医学、理...
- 15 篇 公共卫生与预防医...
70 篇 管理学
- 46 篇 管理科学与工程(可...
- 25 篇 图书情报与档案管...
12 篇 法学
8 篇 军事学
6 篇 农学
5 篇 教育学
5 篇 文学
5 篇 艺术学
4 篇 经济学

主题

580 篇 image processing
499 篇 wavelets
353 篇 signal processin...
205 篇 image compressio...
192 篇 wavelet transfor...
177 篇 image segmentati...
147 篇 image coding
132 篇 image reconstruc...
125 篇 signal to noise ...
125 篇 feature extracti...
106 篇 image enhancemen...
105 篇 sensors
101 篇 visualization
98 篇 image quality
92 篇 image analysis
86 篇 denoising
85 篇 digital signal p...
82 篇 image filtering
75 篇 signal processin...
75 篇 image resolution

机构

11 篇 rice univ dept e...
11 篇 ecole polytech f...
10 篇 chelyabinsk stat...
9 篇 ecole polytech f...
9 篇 tampere univ tec...
8 篇 cicese dept comp...
7 篇 ecole polytech f...
7 篇 univ illinois de...
7 篇 ohu univ sch pha...
7 篇 don state tech u...
7 篇 rice univ dept e...
6 篇 ecole polytech f...
6 篇 univ southern ca...
6 篇 swiss fed inst t...
6 篇 univ maryland de...
6 篇 swiss fed inst t...
5 篇 rice univ dept m...
5 篇 mks imaging tech...
5 篇 univ houston dep...
5 篇 cicese dept comp...

作者

45 篇 ebrahimi touradj
17 篇 kober vitaly
17 篇 agaian sos s.
17 篇 unser m
13 篇 richter thomas
12 篇 schelkens peter
12 篇 ebrahimi t
10 篇 blu t
10 篇 upenik evgeniy
10 篇 ramchandran k
10 篇 baraniuk r
9 篇 astola j
9 篇 philips wilfried
8 篇 vetterli m
8 篇 jones kj
8 篇 alparone l
8 篇 cohen l
8 篇 pizurica aleksan...
8 篇 choi h
8 篇 testolina michel...

语言

3,983 篇 英文
57 篇 其他
26 篇 土耳其文
20 篇 中文

检索条件"任意字段=Wavelets - Applications in Signal and Image Processing X Conference"

共 4086 条记录，以下是921-930 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：

Flexible scintillator autoradiography for tumor margin inspection using ¹⁸F-FDG 4

Flexible scintillator autoradiography for tumor margin inspe...

引用

conference on Molecular-Guided Surgery - Molecules, Devices, and applications IV

作者： Vyas, K. N. Grootendorst, M. Mertzanidou, T. Macholl, S. Stoyanov, D. Arridge, S. R. Tuch, D. S. Lightpoint Med Ltd Misbourne Works Waterside HP5 1PE Chesham England UCL Ctr Med Image Comp Gower St London WC1E 6BT England Queen Mary Univ London Barts Canc Inst Invicro London England

ISBN: (数字)9781510614420

ISBN: (纸本)9781510614420

Autoradiography potentially offers high molecular sensitivity and spatial resolution for tumor margin estimation. However, conventional autoradiography requires sectioning the sample which is destructive and labor-intensive. Here we describe a novel autoradiography technique that uses a flexible ultra-thin scintillator which conforms to the sample surface. Imaging with the flexible scintillator enables direct, high-resolution and high-sensitivity imaging of beta particle emissions from targeted radiotracers. The technique has the potential to identify positive tumor margins in fresh unsectioned samples during surgery, eliminating the processing time demands of conventional autoradiography. We demonstrate the feasibility of the flexible autoradiography approach to directly image the beta emissions from radiopharmaceuticals using lab experiments and GEANT-4 simulations to determine i) the specificity for F-18 compared to Tc-99m-labeled tracers ii) the sensitivity to detect signal from various depths within the tissue. We found that an image resolution of 1.5 mm was achievable with a scattering background and we estimate a minimum detectable activity concentration of 0.9 kBq/ml for F-18. We show that the flexible autoradiography approach has high potential as a technique for molecular imaging of tumor margins using F-18-FDG in a tumor xenograft mouse model imaged with a radiation-shielded EMCCD camera. Due to the advantage of conforming to the specimen, the flexible scintillator showed significantly better image quality in terms of tumor signal to whole-body background noise compared to rigid and optimally thick CaF2:Eu and BC400. The sensitivity of the technique means it is suitable for clinical translation.

关键词： 18F-FDG Surgical imaging Flexible scintillator Tumor margin assessment Breast Cancer Molecular imaging

来源：评论

学校读者我要写书评

暂无评论

Digital signal processing : theory and practice /

引用

2018年

作者： Rao K. Deergha

来源：内蒙古大学图书馆图书评论

学校读者我要写书评

暂无评论

A Review on Recent Improved image Fusion Techniques 2

A Review on Recent Improved Image Fusion Techniques

引用

2nd IEEE International conference on Wireless Communications, signal processing and Networking (WiSPNET)

作者： Rajini, K. C. Roopa, S. Siddaganga Inst Technol Dept Elect & Commun Tumakuru 572103 Karnataka India

ISBN: (纸本)9781509044429

An image fusion is a process used to increase the visual interpretation of images in various applications. It integrates the necessary features of two or more images into a single image without introducing artifacts. The traditional image fusion methods are generally successful at inserting spatial detail into the multispectral imagery despite the color information in the mechanism is distorted. The significant amount of research has been conducted over the past decade related to the application of wavelet transforms in image fusion. wavelets have gained a lot of importance due to its energy compaction and multiresolution properties. This paper presents the overview of image fusion technique and the results from a number of wavelet-based image fusion schemes are compared.

关键词： image fusion multispectral multiresolution wavelet transform

来源：评论

学校读者我要写书评

暂无评论

Compressed Sensing and Finite Isotropic wavelets for the STIx Reconstruction Problem 12

Compressed Sensing and Finite Isotropic Wavelets for the STI...

引用

12th International conference on Sampling Theory and applications (SAMPTA)

作者： Duval-Poo, Miguel A. Massone, Anna Maria Piana, Michele Univ Genoa Dipartimento Matemat Via Dodecaneso 35 I-16146 Genoa Italy CNR SPIN Via Dodecaneso 33 I-16146 Genoa Italy

ISBN: (纸本)9781538615652

STIx is a x-ray imaging spectroscopy device to be mounted as part of the Solar Orbiter cluster. Its goal is to provide images and spectra of solar flaring regions. The device provides 30 measurements of the incoming photon flux which can be interpreted as spatial Fourier samples. In this paper we present a method for reconstructing the intensity image from the few provided measurements. The proposed algorithm is based on compressed sensing theory. In order to provide the needed sparsity, we build an isotropic wavelet transform which is very appropriate for the STIx measurements. The evaluation on two simulated solar flares shows the potential of the algorithm in reconstructing hard x-ray maps from STIx measurements.

关键词： Estimation Field programmable gate arrays OFDM Modulation Filtration Clocks signal processing algorithms

来源：评论

学校读者我要写书评

暂无评论

Methane leak near real time quantification with a hyperspectral infrared camera 40

Methane leak near real time quantification with a hyperspect...

引用

conference on Thermosense - Thermal Infrared applications xL

作者： Doz, S. Foucher, P. Y. Watremez, x. Off Natl Etud & Rech Aerosp French Aerosp Lab 2 Ave Edouard Belin F-31400 Toulouse France Total France CSTJF Ave Larribau F-64000 Pau France

ISBN: (数字)9781510618343

ISBN: (纸本)9781510618343

In the case of accidental methane leakage on a gas production industrial site, it is essential that the risks associated with an explosion of escaped clouds are assessed. By combining spectral and spatial information, hyperspectral technology is an attractive solution for the detection of such a cloud and for the quantification of its concentration. Total has started in 2014 a research program in partnership with Onera, called NAOMI (New Advanced Observation Methods Integration) to develop new tools for remote characterization of accidental methane plumes, especially over areas inaccessible to the personnel. From one of the results of this partnership, Onera is developing an algorithm, IMGSPEC, especially designed for this purpose, using hyperspectral acquisitions in the LWIR domain The principle of IMGSPEC consists of estimating the spectral transmission of the gas cloud using an image of the background. An acquisition image of the same scene without gas is not necessarily available however. The strong point of the algorithm is its ability to recover the signal of the background. The integrated concentration is subsequently estimated pixel by pixel constituting a ppm.m concentration map. Finally, the flow rate of the leak is calculated considering the mass of the cloud, combining concentration estimation and methane density, and the wind speed which is measured with a meteo -station for instance. This algorithm was tested in June during a specific test campaign on the Lacq platform, a Total R&D industrial site. Methane leaks have been performed regulating the following flow rates: 1 g/s, 10 g/s and 100g/s. Flow rate was estimated by IMGSPEC in near real-time following hyperspectral datacube acquisitions. Acquisition and processing times were both 4s, constituting a global flow rate estimation time below 10s.

关键词： infrared hyperspectral gas plume quantification flowrate estimation methane validation campaign

来源：评论

学校读者我要写书评

暂无评论

Application of neural networks to model the signal-dependent noise of a digital breast tomosynthesis unit

Application of neural networks to model the signal-dependent...

引用

conference on Medical Imaging - Physics of Medical Imaging

作者： Brito, Fabricio A. Borges, Lucas R. Guerrero, Igor Bakic, Predrag R. Maidment, Andrew D. A. Vieira, Marcelo A. C. Univ Sao Paulo Dept Elect & Comp Engn Sao Carlos SP Brazil Univ Penn Dept Radiol Philadelphia PA 19104 USA

ISBN: (数字)9781510616363

ISBN: (纸本)9781510616363

This work presents a practical method for estimating the spatially-varying gain of the signal-dependent portion of the noise from a digital breast tomosynthesis (DBT) system. A number of image processing algorithms require previous knowledge of the noise properties of a DBT unit. However, this information is not easily available and thus must be estimated. The estimation of such parameters requires a large number of calibration images, as it often changes with acquisition angle, spatial position and radiographic factors. This could represent a barrier in the algorithm's deployment, mainly for clinical applications. Thus, we modeled the gain of the Poisson noise of a commercially available DBT unit as a function of the radiographic factors, acquisition angle, and pixel position. First, we measured the noise parameters of a clinical DBT unit by acquiring 36 sets of calibration images (raw projections) using uniform phantoms of different thicknesses, within a range of radiographic factors commonly used in clinical practice. With this information, we trained a multilayer perceptron artificial neural network (MLP-ANN) to predict the gain of the Poisson noise automatically as a function of the acquisition setup. Furthermore, we varied the number of calibration images in the learning step of the MLP-ANN to determine the minimum number of images necessary to obtain an accurate model. Results show that the MLP-ANN was able to yield the desired parameters with average error of less than 2%, using a learning dataset limited to only seven sets of calibration images. The accuracy of the model, along with its computational efficiency, makes this method an attractive tool for clinical image-based applications.

关键词： Digital breast tomosynthesis Poisson noise Gaussian noise noise modeling multilayer perceptron neural network

来源：评论

学校读者我要写书评

暂无评论

Point cloud subjective evaluation methodology based on reconstructed surfaces 41

Point cloud subjective evaluation methodology based on recon...

引用

conference on applications of Digital image processing xLI

作者： Alexiou, Evangelos Pinheiro, Antonio M. G. Duarte, Carlos Matkovic, Dragan Dumic, Emil da Silva Cruz, Luis A. Dmitrovic, Lovorka Gotal Bernardo, Marco V. Pereira, Manuela Ebrahimi, Touradj Ecole Polytech Fed Lausanne Multimedia Signal Proc Grp Lausanne Switzerland Univ Beira Interior Inst Telecommun Covilha Portugal Univ Coimbra Dept Elect & Comp Engn Coimbra Portugal Inst Telecommun Lisbon Portugal Univ North Dept Elect Engn Koprivnica Croatia

ISBN: (数字)9781510620766

ISBN: (纸本)9781510620766

Point clouds have been gaining importance as a solution to the problem of efficient representation of 3D geometric and visual information. They are commonly represented by large amounts of data, and compression schemes are important for their manipulation transmission and storing. However, the selection of appropriate compression schemes requires effective quality evaluation. In this work a subjective quality evaluation of point clouds using a surface representation is analyzed. Using a set of point cloud data objects encoded with the popular octree pruning method with different qualities, a subjective evaluation was designed. The point cloud geometry was presented to observers in the form of a movie showing the 3D Poisson reconstructed surface without textural information with the point of view changing in time. Subjective evaluations were performed in three different laboratories. Scores obtained from each test were correlated and no statistical differences were observed. Scores were also correlated with previous subjective tests and a good correlation was obtained when compared with mesh rendering in 2D monitors. Moreover, the results were correlated with state of the art point cloud objective metrics revealing poor correlation. Likewise, the correlation with a subjective test using a different representation of the point cloud data also showed poor correlation. These results suggest the need for more reliable objective quality metrics and further studies on adequate point cloud data representations.

关键词： Subjective Quality Assessment Point Cloud Quality Metrics

来源：评论

学校读者我要写书评

暂无评论

Multilevel DTCWT for Feature Extraction and SVD image Registration for Micro Air Vehicle Autonomous Navigation 2

Multilevel DTCWT for Feature Extraction and SVD Image Regist...

引用

2nd IEEE International conference on Wireless Communications, signal processing and Networking (WiSPNET)

作者： Venkateshappa Raj, P. Cyril Prasanna MS Engn Coll Dept ECE Bengaluru 562110 India

ISBN: (纸本)9781509044429

In this paper, image registration of aerial image with reference satellite image is carried out by computing multi-level sub bands using dual tree complex wavelets. Features are extracted from sub bands and the corresponding features are mapped for similarity by SVD methods. The registered images are evaluated for their performance metrics and the improvements in registration process in terms of transformational parameters are evaluated. The registration process proposed is accurate as it identifies the features with six orientations and thus compares the features and performs orientations foe perfect registration. The algorithm is designed to be faster by eliminating false features thus making it suitable for real time applications.

关键词： Dual tree CWT image registration feature extraction SVD autonomous navigation

来源：评论

学校读者我要写书评

暂无评论

A robust image hashing based on discrete wavelet transform 5

A robust image hashing based on discrete wavelet transform

引用

IEEE International conference on signal and image processing applications (ICSIPA)

作者： Singh, Satendra Pal Bhatnagar, Gaurav Indian Inst Technol Jodhpur Dept Math Jodhpur Rajasthan India

ISBN: (纸本)9781509055593

In this paper, a robust image hashing framework is proposed using image normalization, discrete wavelet transform and singular value decomposition. The stressed motive of the proposed scheme is to obtain a randomize hash sequence which can be used for image authentication and database search. For this purpose, the image is first normalized followed by hash generation in the wavelet domain utilizing the properties of singular value decomposition (SVD). Experimental evaluations demonstrate that the proposed scheme is providing the better robustness and security.

关键词： Discrete wavelet transforms Shearing Robustness Hamming distance Authentication image processing

来源：评论

学校读者我要写书评

暂无评论

Trade-off between Mean Brightness and Contrast in Histogram Equalization Technique for image Enhancement 5

Trade-off between Mean Brightness and Contrast in Histogram ...

引用

IEEE International conference on signal and image processing applications (ICSIPA)

作者： Kansal, Shubhi Purwar, Shikha Tripathi, Rajiv Kumar Natl Inst Technol Dept Elect & Commun Engn Delhi 110040 India

ISBN: (纸本)9781509055593

Histogram equalization is the simplest method of image enhancement. Mean brightness and contrast are important parameters of an image. Artifacts are generated if the original mean brightness of an image is not preserved. A high contrast provides good visual quality. Contrast can be increased by increasing entropy of the image. Entropy can be maximized by making the image histogram as flat as possible. In this paper, the trade-off between mean brightness and maximum entropy performed to achieve high contrast image with conserved mean brightness.

关键词： Histogram equalization Entropy Contrast Enhancement Mean Absolute Error

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409页 << < 89 90 91 92 93 94 95 96 97 98 > >>

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：