检索结果-内蒙古大学图书馆

Advances in 3D fusion of multimodal medical images: 3D reconstruction of bone, muscle, and ligament structures under load from radiographs and magnetic resonance imaging

引用

Research on Biomedical Engineering 2025年第1期41卷 1-35页

作者： da Silva, Daniel S. Astolfi, Rodrigo S. Jagatheesaperumal, Senthil K. Selvaraj, Priyadharsini Russel, Newlin Shebiah de Albuquerque, Victor Hugo C. Post-Graduation Program of Medical Surgical Sciences Federal University of Ceara CE Fortaleza60455-970 Brazil Department of Teleinformatics Engineering Federal University of Ceara CE Fortaleza60455-970 Brazil Department of Electronics and Communication Engineering Mepco Schlenk Engineering College TN Sivakasi626005 India Department of Computer Science and Engineering Mepco Schlenk Engineering College TN Sivakasi626005 India

Purpose: Foot and ankle pathologies are among the most prevalent conditions within the human locomotor system. Imaging examinations are crucial for diagnosing, treating, and achieving satisfactory functional outcomes for these conditions. However, conventional imaging exams often fail to capture all the necessary details for precise analysis, necessitating the use of multiple imaging modalities to evaluate bones, ligaments, cartilage, and other structures. Objective: This research aims to explore computational technologies and algorithms for 3D reconstruction and fusion of foot and ankle images, alongside the analysis, segmentation, classification, and evaluation techniques applied to these images. Methods: The study investigates different computational approaches for 3D reconstruction and multimodal image fusion, integrating X-ray and MRI data. Advanced segmentation and classification techniques are applied to enhance the precision of structural assessment. Additionally, we assess the availability and quality of databases for training and validating these models. Results: Our findings highlight a significant gap in research concerning these specific applications, as well as a shortage of suitable databases for 3D reconstruction and fusion of images from X-rays and MRI. Conclusion: The study emphasizes the need for dedicated datasets and further research to develop effective computational solutions for multimodal foot and ankle imaging. © The Author(s), under exclusive licence to The Brazilian Society of Biomedical Engineering 2025.

关键词： Magnetic resonance imaging

来源：评论

学校读者我要写书评

暂无评论

A framework to radio layer operation in cognitive networks

A framework to radio layer operation in cognitive networks

引用

6th International Conference on Networking and Services, ICNS 2010, Includes LMPCNA 2010;INTENSIVE 2010

作者： De Souza Mendes, Rafael Becker Westphall, Carlos Rodrigues Garcia, Everton Computer Science Post-graduation Program Federal University of Santa Catarina Florianopólis Brazil

ISBN: (纸本)9780769539690

In this work, we present a schema to classify the signal sensed as well as to classify the spectrum band occupation according to signals sensed. We also present a list of functionalities that ensure information and operations need to upper layers perform interference avoidance, power allocation, sensing control, spectrum characterization, spectrum selection and reconfiguration. With this list, we highlight the radio configuration features that are relevant to achieve cognitive network goals. Finally, we evaluate the expressivity of proposed schema to hit the main cognitive network goals and we conclude that our propose is relevant to cognitive radio research once it define de minimum behavior and responsibilities to cognitive radio layer. © 2010 IEEE.

关键词： Cognitive radio

来源：评论

学校读者我要写书评

暂无评论

Partitioning and dynamic mapping evaluation for energy consumption minimization on NoC-based MPSoC

Partitioning and dynamic mapping evaluation for energy consu...

引用

13th International Symposium on Quality Electronic Design, ISQED 2012

作者： Antunes, Eduardo Soares, Matheus Aguiar, Alexandra Johann, F. Sergio Sartori, Marcos Hessel, Fabiano Marcon, César PPGCC - Post-Graduation Program in Computer Science PUCRS - Pontifical University Catholic of Rio Grande Do Sul Brazil

ISBN: (纸本)9781467310369

Software complexity has increased considerably over recent years, needing special target architectures as NoC-based MPSoCs to fulfill the heavy storage, communication and computation requirements. The design of these systems requires efficient methodologies aggregating partitioning and mapping. In these sense, this paper explores partitioning and mapping influence on energy consumption of homogeneous NoC-Based MPSoC. In addition, it compares two strategies to achieve efficient dynamic mappings: one that map tasks directly onto processors and another one that applies a previous static task-partitioning and uses this information to choose the dynamic task mapping. Experiments with various synthetic and four embedded applications show the efficiency of the second strategy that minimizes an average of 23.5% on energy consumption. © 2012 IEEE.

关键词： Mapping

来源：评论

学校读者我要写书评

暂无评论

Aperture-Coupled Koch Fractal on-Chip Antennas for 60 GHz ISM Band 2

Aperture-Coupled Koch Fractal on-Chip Antennas for 60 GHz IS...

引用

2nd IEEE MTT-S Latin America Microwave Conference, LAMC 2018

作者： Morais, Samuel Medeiros Araújo Serres, Alexandre Jean Rene Guarany, Ivana Soares Da Silverio Freire, Raimundo Carlos Da Silva, Paulo Fernandes Santana, Ewaldo Elder Carvalho Da Fonseca Silva, Paulo Henrique Post-Graduation Program in Electrical Engineering Federal University of Campina Grande Campina Grande Brazil Post-Graduation Program in Computer Engineering and Systems State University of Maranhão São Luis Brazil Post-Graduation Program in Electrical Engineering Federal Institute of Education Science and Technology of Paraíba João Pessoa Brazil

ISBN: (纸本)9781538673331

This paper presents Koch fractal aperture-coupled patch antennas operating in industrial scientific and medical band at 60 GHz (57 GHz to 64 GHz), for on-chip application. This work is the continuation of the development of aperture-coupled antennas with aperture and patch element built in 2 μm-thick aluminum lying on two layers of silicon with a height of 200 μm. The use of Koch fractal allowed the development of aperture-coupled antennas of greater perimeter with more metal in the patch elements, which promoted an increase in the gain. The observed gain for Koch fractal level 2 was of 10.55 dBi, with a bandwidth of 7.23 GHz, covering the ISM 60 GHz Band, and an increase of less than 10% in total patch dimension. For Koch fractal levels 0 (square), a polarization close to circular was achieved, with an axial ratio less than 6 at resonant frequencies. © 2018 IEEE.

关键词： Natural frequencies

来源：评论

学校读者我要写书评

暂无评论

A Differential Evolution Algorithm for Contrast Optimization 9th

A Differential Evolution Algorithm for Contrast Optimization

引用

9th Brazilian Conference on Intelligent Systems, BRACIS 2020

作者： da Costa Oliveira, Artur Leandro Britto, André Post-Graduation Program in Computer Science Federal University of Sergipe Sergipe Brazil Departament of Computing Federal University of Sergipe Sergipe Brazil

ISBN: (纸本)9783030613761

Image Enhancement is one of the most important phases of the image processing system. Contrast Enhancement plays a key role in this step. Histogram Equalization (HE) is one of the main tools used to improve the contrast of an image. However, the use of HE causes an increase in the natural brightness of the image, which is not desirable in many types of applications such as consumer electronics products. To solve these limitations, it is proposed in this paper a variation of the Differential Evolution metaheuristic algorithm for Contrast Optimization called DECO. The results obtained were statistically compared with other techniques and metaheuristic algorithms. The results showed that DECO is competitive compared with other techniques. © 2020, Springer Nature Switzerland AG.

关键词： Optimization

来源：评论

学校读者我要写书评

暂无评论

Partitioning and mapping on NoC-based MPSoC: An energy consumption saving approach

Partitioning and mapping on NoC-based MPSoC: An energy consu...

引用

4th International Workshop on Network on Chip Architectures, NoCArc 2011, in Conjunction with the 44th Annual IEEE/ACM International Symposium on Microarchitecture, MICRO44

作者： Antunes, Eduardo Aguiar, Alexandra Johann, F. Sergio Sartori, Marcos Hessel, Fabiano Marcon, César PPGCC - Post-Graduation Program in Computer Science PUCRS - Pontifical University Catholic of Rio Grande Do Sul Porto Alegre Brazil

ISBN: (纸本)9781450309479

Software complexity has increased considerably over recent years, needing special target architectures as MPSoCs to fulfill the heavy memory, communication and computation requirements. Nevertheless, the use of MPSoCs has brought attention to the need for effective methods and tools for parallel software development. Methodologies aggregating partitioning and mapping are normally employed to fulfill the heavy requirements of such systems. This paper explores task-partitioning and processor-mapping methods on homogeneous NoC-Based MPSoC. The effect of both on application's energy consumption is explored alone and jointly. Experiments with several synthetic and four real applications show that the energy consumption is reduced up to 18%, 31.8% or 38.1% when applying partitioning, mapping or both, respectively. © 2011 ACM.

关键词： Mapping

来源：评论

学校读者我要写书评

暂无评论

Porantim-opt: Optimizing the combined selection of model-based testing techniques

Porantim-opt: Optimizing the combined selection of model-bas...

引用

Workshop on Requirements and Validation, Verification, and Testing

作者： Neto, Arilo Claudio Dias De Freitas Rodrigues, Rosiane Travassos, Guilherme Horta Post-graduation Program In Informatics Computer Science Department Federal University of Amazonas Manaus AM Brazil Systems Engineering and Computer Science Program COPPE Federal University of Rio De Janeiro Rio De Janeiro RJ Brazil

ISBN: (纸本)9780769543451

The combination of testing techniques is considered an effective strategy to evaluate a software product. However, the selection of which techniques to combine in a software project has been an interesting challenge in the Software Engineering field. This paper presents a proposal extending an approach developed to support the combined selection of model-based testing (MBT) techniques, named Porantim, applying Multiobjective Combinatorial Optimization strategy by determining the smallest dominating set in a bipartite and weighted graph. Thus, a local search strategy algorithm is proposed generating solutions aiming at maximizing the coverage of software project characteristics and skills required by the testing team to use the techniques and minimizing the eventual effort to construct models used for test cases generation. A preliminary evaluation analyzes this new approach when compared to the Porantim's original version, and the results indicate improvements in the MBT techniques selection. © 2011 IEEE.

关键词： Software testing

来源：评论

学校读者我要写书评

暂无评论

An object oriented framework for task scheduling

An object oriented framework for task scheduling

引用

Technology of Object-Oriented Languages and Systems (TOOLS)

作者： I.M.S. Gimenes S.A. Tanaka J.P.M. de Oliveira Department of Informatics Joint supervisor of the PPGC UFRGS Universidade Estatual de Maringá Department of Informatics PPGC UFRGS CESULON Program of Post Graduation in Computer Science PPGC Institute of Informatics-UFRGS

This paper presents an object oriented framework for task scheduling. This framework can be used in domains such as process-centred software engineering environments, workflow management systems or project management systems. The framework was conceived based on both current methods for the development of frameworks and an existing architectural pattern for process managers. A prototype of the framework was developed using the Java language. The lessons learnt show the experience of extracting a framework from well-known applications that can be reused in practical domains. Thus, this work contributes not only in the production of a framework but also giving insights in the application of novel techniques to the development of frameworks.

关键词： Application software Informatics Environmental management Engineering management Software engineering Processor scheduling Electrical capacitance tomography Production Software quality Automation

来源：评论

学校读者我要写书评

暂无评论

RJSSim: A reconfigurable job scheduling simulator for parallel processing learning 33

RJSSim: A reconfigurable job scheduling simulator for parall...

引用

33rd Annual Frontiers in Education, FIE 2003

作者： Góes, Luís F.W. Martins, Carlos A.P.S. Pontifical Catholic University of Minas Gerais Post-Graduation Program in Electrical Engineering Computational and Digital Systems Laboratory Belo HorizonteMG Brazil Pontifical Catholic University of Minas Gerais Computer Science Department Post-Graduation Program in Electrical Engineering Computational and Digital Systems Laboratory Belo HorizonteMG Brazil

ISBN: (纸本)0780379616

In this work, we present and analyze the use of a reconfigurable job scheduling simulator called RJSSim as an aid tool for parallel processing learning. This software is a functional and performance Java-based simulator of job scheduling policies. Our objectives are: to present RJSSim;to show the use of RJSSim and reconfigurability concepts for parallel processing learning. First, we present a prototype of RJSSim and the reconfigurability concept. Then we describe two case studies remarking the main parallel processing concepts and skills students can learn. In the first case study, we analyze two parallel algorithm models. In the second, we do some performance tests among parallel (reconfigurable) scheduling policies and architectures. Then, we analyze the performance through some metrics like response time, idle time etc. Finally we discuss and analyze the use of RJSSim for parallel processing learning. Our main contribution is: an implementation of RJSSim for parallel processing learning. © 2003 IEEE.

关键词： Parallel algorithms

来源：评论

学校读者我要写书评

暂无评论

Lateral Representation Learning in Convolutional Neural Networks

Lateral Representation Learning in Convolutional Neural Netw...

引用

International Joint Conference on Neural Networks

作者： Pedro Ballester Ulisses Brisolara Correa Ricardo Matsumura Araujo Center for Technological Development Federal University of Pelotas Graduation Program in Computer Science (PPGC) Pelotas RS Brazil

We explore a type of transfer learning in Convolutional Neural Networks where a network trained on a primary representation of examples (e.g. photographs) is capable of generalizing to a secondary representation (e.g. sketches) without fully training on the latter. We show that the network is able to improve classification on classes for which no examples in the secondary representation were provided, an evidence that the model is exploiting and generalizing concepts learned from examples in the primary representation. We measure this lateral representation learning on a CNN trained on the ImageNet dataset and use overlapping classes in the TU-Berlin and Caltech-256 datasets as secondary representations, showing that the effect can't be fully explained by the network learning newly specialized kernels. This phenomenon can potentially be used to train classes in domain adaptation tasks for which few examples in a target representation are available.

关键词： Training Task analysis Feature extraction Convolutional neural networks Kernel Semantics

来源：评论

学校读者我要写书评

暂无评论

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：

请选择收藏分类：

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

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：