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

606 篇 会议
17 篇 期刊文献

馆藏范围

623 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

361 篇 工学
- 188 篇 计算机科学与技术...
- 110 篇 电气工程
- 89 篇 软件工程
- 53 篇 生物医学工程（可授...
- 41 篇 光学工程
- 40 篇 测绘科学与技术
- 36 篇 仪器科学与技术
- 36 篇 信息与通信工程
- 27 篇 控制科学与工程
- 21 篇 核科学与技术
- 20 篇 电子科学与技术（可...
- 20 篇 生物工程
- 18 篇 机械工程
- 8 篇 材料科学与工程（可...
- 5 篇 土木工程
- 4 篇 建筑学
- 4 篇 航空宇航科学与技...
242 篇 理学
- 198 篇 物理学
- 44 篇 数学
- 25 篇 生物学
- 12 篇 统计学（可授理学、...
- 6 篇 化学
- 5 篇 系统科学
- 4 篇 大气科学
220 篇 医学
- 180 篇 临床医学
- 79 篇 特种医学
- 13 篇 医学技术（可授医学...
- 6 篇 基础医学(可授医学...
13 篇 管理学
- 11 篇 管理科学与工程(可...
8 篇 农学
- 5 篇 作物学
1 篇 文学
1 篇 军事学

主题

259 篇 image reconstruc...
37 篇 computed tomogra...
33 篇 three-dimensiona...
30 篇 reconstruction a...
25 篇 training
24 篇 image segmentati...
24 篇 cameras
23 篇 solid modeling
23 篇 surface reconstr...
22 篇 image restoratio...
22 篇 tomography
22 篇 image processing
21 篇 compressed sensi...
21 篇 shape
21 篇 image quality
18 篇 magnetic resonan...
17 篇 deep learning
17 篇 image resolution
16 篇 biomedical imagi...
16 篇 image registrati...

机构

8 篇 univ canterbury ...
6 篇 univ canterbury ...
4 篇 dartmouth coll t...
3 篇 univ rochester i...
3 篇 univ n carolina ...
3 篇 departamento de ...
3 篇 hosp gen univ gr...
2 篇 department of ra...
2 篇 linkoping univ d...
2 篇 peking univ peop...
2 篇 department of ra...
2 篇 laboratoire des ...
2 篇 univ chinese aca...
2 篇 siemens srl bras...
2 篇 school of comput...
2 篇 department of en...
2 篇 unidad de medici...
2 篇 washington univ ...
2 篇 the technical un...
2 篇 tsinghua univ de...

作者

8 篇 millane rp
7 篇 desco m.
7 篇 anastasio mark a...
5 篇 doerschuk peter ...
5 篇 lambert a
5 篇 fraser d
4 篇 kudo hiroyuki
4 篇 vaquero j. j.
4 篇 millane r. p.
4 篇 bouman ca
4 篇 fiddy michael a.
4 篇 bones philip j.
4 篇 millane rick p.
4 篇 tahtali murat
4 篇 abella m.
4 篇 zheng yili
4 篇 andrew j. reader
4 篇 reader andrew j.
4 篇 m. desco
4 篇 testorf markus e...

语言

622 篇 英文
1 篇 其他

检索条件"任意字段=Conference on Image Reconstruction from Incomplete Data III"

共 623 条记录，以下是351-360 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：

Weighted Total Variation Constrained reconstruction for Reduction of Metal Artifact in CT

Weighted Total Variation Constrained Reconstruction for Redu...

引用

IEEE Nuclear Science Symposium (NSS)/Medical Imaging conference (MIC)/17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors

作者： Zhang, Yanbo Mou, Xuanqin Yan, Hao Xi An Jiao Tong Univ Inst Image Proc & Pattern Recognit Xian 710049 Shaanxi Peoples R China

ISBN: (纸本)9781424491063

TV constrained reconstruction could obtain perfect results from incomplete data, and has been applied to reduce metal artifact by assuming that the projection contaminated by metal is missing. In TV constrained reconstruction, the selection of a proper step parameter for TV minimization procedure is a key point. However, this parameter is usually selected empirically, and it is a constant for all pixels in the whole image domain, regardless of the difference of missing projection quantity at different pixels. By analyzing the relationship between the missing projections and pixels position, a Weighted Total Variation (WTV) constrained reconstruction method is proposed to reduce metal artifact in this paper. For WTV constrained method, the parameters are no longer the same, but vary over image domain as the introduced information miss rate. The simulation results show that the proposed method is more effective than current TV constraint to reduce metal artifact. Moreover, WTV constrained method is extended to other incomplete projection problems.

关键词： Pixels

来源：评论

学校读者我要写书评

暂无评论

Multiple image reconstruction for high-resolution optical imaging using structured illumination

Multiple image reconstruction for high-resolution optical im...

引用

conference on image reconstruction from incomplete data VI

作者： Usuki, S. Kudo, R. Takahashi, S. Takamasu, K. Shizuoka Univ Div Global Res Leaders 3-5-1 Johoku Hamamatsu Shizuoka 4328561 Japan Univ Tokyo Dept Precis Engn Tokyo 1138656 Japan

ISBN: (纸本)9780819482969

The resolving power in optical imaging is limited not only by optical diffraction but also by the sampling size, which in turn is determined by the optical magnification and pixel size of the imaging devices such as CCD or CMOS. In order to exceed these limits, we propose a method for improving the optical resolving power by using structured illumination shift and multiple image reconstruction. Theoretical and experimental verifications reveal that the use of structured light illumination together with successive approximation (which provides the extrapolation effect) causes the resolving power of the proposed method to exceed the optical diffraction limit. Furthermore, we focused on subpixel sampling using the structured illumination shift method. Subpixel image processing can improve the resolving power without narrowing the visual field of the imaging optics. In addition, the proposed method can provide subpixel resolving power without necessitating the mechanical displacement of the CCD camera. We investigated the relationship between the CCD pixel size and the resolving power provided by the proposed method. We found that the subpixel spatial shift of the structured illumination not only improves the optical resolving power but also enables sub-pixel sampling for optical imaging.

关键词： optical imaging image reconstruction structured illumination super-resolution

来源：评论

学校读者我要写书评

暂无评论

Graphics Processing Unit restoration of non-uniformly warped images using a typical frame as prototype

Graphics Processing Unit restoration of non-uniformly warped...

引用

conference on image reconstruction from incomplete data VI

作者： Tahtali, Murat Lambert, Andrew J. Fraser, Donald Univ New S Wales Australian Def Force Acad Sch Engn & Informat Technol Canberra ACT 2600 Australia

ISBN: (纸本)9780819482969

When imaging through the atmosphere, the resulting image contains not only the desired scene, but also the adverse effects of all the turbulent air mass between the camera and the scene. These effects are viewed as a combination of non-uniform blurring and random shifting of each point in the received short-exposure image. Corrections for both aspects of this combined distortion have been tackled reasonably successfully by previous efforts. We presented in an earlier paper a more robust method of restoring the geometry by redefining the place of the prototype frame and by reducing the adverse effect of averaging in the processing sequence. We present here a variant of this method using a Minimum Sum of Squared Differences (MSSD) cross-correlation registration algorithm implemented on a Graphics Processing Unit (GPU). The raw speed-up achieved using GPU code is in the order of x1000. Two orders of magnitude speed-up on the complete algorithm will allow for better fine tuning of this method and for experimentation with various registration algorithms.

关键词： image registration shiftmaps atmospheric warp image restoration GPU computing CUDA

来源：评论

学校读者我要写书评

暂无评论

Ill-posedness of space-variant image deconvolution

Ill-posedness of space-variant image deconvolution

引用

conference on image reconstruction from incomplete data VI

作者： Kieweg, Michael Gross, Herbert Sievers, Torsten Mueller, Lothar Carl Zeiss Corp Res & Technol D-73446 Oberkochen Germany Carl Zeiss Corp Res & Technol D-07745 Jena Germany

ISBN: (纸本)9780819482969

In optical systems with quite good correction, the field-dependence of aberrations often can be neglected. In low performance systems, for the application of deconvolution methods the field-dependence of the point spread function must be taken into account. However, the number of publications dealing with the topic of space-variant deconvolution in order to compensate system aberrations is quite low. In this contribution, we investigate the fundamental difficulty accompanied by space-variant deconvolution, which makes the problem ill-posed, even in the case of non-vanishing modular transfer functions and the assumption of noise-free imaging. The spatial frequencies of the image spectrum are mixed depending on the field-dependencies of the optical aberrations. In general, it is therefore not possible to reconstruct the individual frequencies exactly. Some discrete examples with a non unique solution are presented. For the 2D case, we will show and investigate how the most popular algorithms deal with this fundamental problem for different typical types of optical aberrations. Depending on the aberration, the computational results for those algorithms differ from very good results to images with artifacts. The Lucy Richardson method, which is often recommended in the case of space-invariant image reconstruction since it may even reconstruct frequencies above the cut off frequency, provides poor results for unsymmetrical space-variant aberrations like Coma or a simple Tilt. However, we will show that a simpler method like the Landweber algorithm is better suited to deal with those kinds of aberrations.

关键词： Space-variant deconvolution image restoration optical aberrations

来源：评论

学校读者我要写书评

暂无评论

Classification of cryo electron microscopy images, noisy tomographic images recorded with unknown projection directions, by simultaneously estimating reconstructions and application to an assembly mutant of Cowpea Chlorotic Mottle Virus and portals of the bacteriophage P22

Classification of cryo electron microscopy images, noisy tom...

引用

conference on image reconstruction from incomplete data VI

作者： Lee, Junghoon Zheng, Yili Yin, Zhye Doerschuk, Peter C. Johnson, John E. Johns Hopkins Univ Elect & Comp Engn Baltimore MD 21218 USA Lawrence Berkeley Natl Lab Computat Res Div Berkeley CA 94720 USA Gen Elect Global Res Niskayuna 12309 NY USA Scripps Res Inst Dept Mol Biol La Jolla CA 92037 USA

ISBN: (纸本)9780819482969

Cryo electron microscopy is frequently used on biological specimens that show a mixture of different types of object. Because the electron beam rapidly destroys the specimen, the beam current is minimized which leads to noisy images (SNR substantially less than 1) and only one projection image per object (with an unknown projection direction) is collected. For situations where the objects can reasonably be described as coming from a finite set of classes, an approach based on joint maximum likelihood estimation of the reconstruction of each class and then use of the reconstructions to label the class of each image is described and demonstrated on two challenging problems: an assembly mutant of Cowpea Chlorotic Mottle Virus and portals of the bacteriophage P22.

关键词： statistical image classification statistical inverse problem statistical signal reconstruction tomography cryo electron microscopy virus structure Cowpea Chlorotic Mottle Virus portal of Bacteriophage P22

来源：评论

学校读者我要写书评

暂无评论

Imposing spatio-temporal support in magnetic resonance angiographic imaging

Imposing spatio-temporal support in magnetic resonance angio...

引用

conference on image reconstruction from incomplete data VI

作者： Bones, Philip J. Vafadar, Bahareh Watts, Richard Wu, Bing Univ Canterbury Dept Elect & Comp Engn Computat Imaging Grp Christchurch New Zealand Univ Canterbury Dept Phys & Astron Christchurch New Zealand Duke Univ Brain Imaging & Analysis Ctr Sch Med Durham NC 27708 USA

ISBN: (纸本)9780819482969

A method to improve time resolution in 3D contrast-enhanced magnetic resonance angiography (CE-MRA) is proposed. A temporal basis based on prior knowledge of the contrast flow dynamics is applied to a sequence of image reconstructions. In CE-MRA a contrast agent (gadolinium) is injected into a peripheral vein and MR data is acquired as the agent arrives in the arteries and then the veins of the region of clinical interest. The acquisition extends over several minutes. Information is effectively measured in 3D k-space (spatial frequency space) one line at-a-time. That line may be along a Cartesian grid line in k-space, a radial line or a spiral trajectory. A complete acquisition comprises many such lines but in order to improve temporal resolution, reconstructions are made from only partial sets of k-space data. By imposing a basis for the temporal changes, based on prior expectation of the smoothness of the changes in contrast concentration with time, it is demonstrated that a significant reduction in artifacts caused by the under-sampling of k-space can be achieved. The basis is formed from a set of gamma variate functions. Results are presented for a simulated set of 2D spiral-sampled CE-MRA data.

关键词： Magnetic resonance imaging data acquisition Arteries Temporal resolution Angiography Signal to noise ratio Gadolinium image quality Veins Magnetism

来源：评论

学校读者我要写书评

暂无评论

Research of the image reconstruction from incomplete Projection data Based on the Homotopy Mapping

Research of the Image Reconstruction from Incomplete Project...

引用

2nd International Asia conference on Informatics in Control, Automation and Robotics (CAR)

作者： Li Fei Pan Jin-Xiao North Univ China Coll Sci Dept Math Taiyuan Peoples R China North Univ China Natl Key Lab Elect Measurement Technol Taiyuan Peoples R China

ISBN: (纸本)9781424451944

Multi-objective optimization reconstruction algorithm is one of the main methods to solve the limited angle image reconstruction. However we have great difficulty in selecting the right parameter reasonably because there is not only one objective function. So we give a new method to choose the parameter which was called homotopy parameter based on the theory of homotopy in this paper. Finally, the simulations were carried out to verify the proposed strategy, and the simulation results show that this algorithm is superior to the conventional multi-objective optimization methods in many aspects, such as less reconstruction errors, higher smoothness and gray value resolution.

关键词： multi-objective optimization limited angle image reconstruction homotopy parameter

来源：评论

学校读者我要写书评

暂无评论

Rethinking image Registration on Customizable Hardware

Rethinking Image Registration on Customizable Hardware

引用

conference on image reconstruction from incomplete data VI

作者： Bowman, David Tahtali, Murat Lambert, Andrew UNSW ADFA Sch Engn & IT Canberra ACT 2600 Australia

ISBN: (纸本)9780819482969

image registration is one of the most important tasks in image processing and is frequently one of the most computationally intensive. In cases where there is a high likelihood of finding the exact template in the search image, correlation-based methods predominate. Presumably this is because the computational complexity of a correlation operation can be reduced substantially by transforming the task into the frequency domain. Alternative methods such as minimum Sum of Squared Differences (minSSD) are not so tractable and are normally disfavored. This bias is justified when dealing with conventional computer processors since the operations must be conducted in an essentially sequential manner however we demonstrate it is normally unjustified when the processing is undertaken on customizable hardware such as FPGAs where tasks can be temporally and/or spatially parallelized. This is because the gate-based logic of an FPGA is better suited to the tasks of minSSD i.e. signed-addition hardware can be very cheaply implemented in FPGA fabric, and square operations are easily implemented via a look-up table. In contrast, correlation-based methods require extensive use of multiplier hardware which cannot be so cheaply implemented in the device. Even with modern DSP-oriented FPGAs which contain many "hard" multipliers we experience at least an order of magnitude increase in the number of minSSD hardware modules we can implement compared to cross-correlation modules. We demonstrate successful use and comparison of techniques within an FPGA for registration and correction of turbulence degraded images.

关键词： image Registration FPGA Cross Correlation Minimum Sum of Squared Differences

来源：评论

学校读者我要写书评

暂无评论

The ATST Visible Broadband imager: A Case Study For Real-time image reconstruction and Optimal data Handling

The ATST Visible Broadband Imager: A Case Study For Real-tim...

引用

conference on Ground-based and Airborne Instrumentation for Astronomy iii

作者： Woeger, Friedrich Uitenbroek, Han Tritschler, Alexandra McBride, William Elmore, David Rimmele, Thomas Cowan, Bruce Wampler, Steve Goodrich, Bret Natl Solar Observ Sunspot NM 88349 USA

ISBN: (纸本)9780819482259

At future telescopes, adaptive optics systems will play a role beyond the correction of Earth's atmosphere. These systems are capable of delivering information that is useful for instrumentation, e. g. if reconstruction algorithms are employed to increase the spatial resolution of the scientific data. For the 4 m aperture Advanced Technology Solar Telescope (ATST), a new generation of state-of-the-art instrumentation is developed that will deliver observations of the solar surface at unsurpassed high spatial resolution. The planned Visual Broadband imager (VBI) is one of those instruments. It will be able to record images at an extremely high rate and compute reconstructed images close to the telescope's theoretical diffraction limit using a speckle interferometry algorithm in near real-time. This algorithm has been refined to take data delivered by the adaptive optics system into account during reconstruction. The acquisition and reconstruction process requires the use of a high-speed data handling infrastructure to retrieve the necessary data from both adaptive optics system and instrument cameras. We present the current design of this infrastructure for the ATST together with a feasibility analysis of the underlying algorithms.

关键词： Instrumentation data Handling Adaptive Optics image reconstruction

来源：评论

学校读者我要写书评

暂无评论

Rotation-Invariant DAISY Descriptor for Keypoint Matching and Its Application in 3D reconstruction

Rotation-Invariant DAISY Descriptor for Keypoint Matching an...

引用

IEEE 10th International conference on Signal Processing

作者： Guo, Yin Zeng, Hui Mu, Zhi-Chun Zhang, Feng Univ Sci & Technol Beijing Sch Informat Engn Beijing 100083 Peoples R China

ISBN: (纸本)9781424458981

In this paper, we introduce an improved version of DAISY descriptor algorithm, which is used for high-quality image keypoint matching. Since DAISY descriptor algorithm has many prominent advantages but lacks the ability of handling large in-plane rotation, we thus construct our Rotation-Invariant DAISY descriptor to effectively settle this shortcoming. The matching results of our scheme can be also used into 3D reconstruction task. After camera parameters are estimated by self-calibration, we compute corresponding 3D data using structure from motion (SFM) technique. Our experimental results demonstrate that Rotation-Invariant DAISY descriptor algorithm has better performance in various image distortions, and it can be effectively applied to the framework of 3D reconstruction.

关键词： 3D reconstruction calibration camera parameters cameras image distortions image keypoint matching image matching image reconstruction rotation-invariant DAISY descriptor self-calibration structure from motion

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63页 << < 32 33 34 35 36 37 38 39 40 41 > >>

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：