检索结果-内蒙古大学图书馆

Non-reference virtual view quality evaluation of MVD

Journal of Shanghai University(English Edition) 2011年第4期15卷 342-346页

作者：张艳安平张秋闻王元庆张兆杨 School of Communication and Information Engineering Shanghai University Department of Computer Science and Technology Anhui University of Finance and EconomicsBengbu 230030AnhuiP.R.China Key Laboratory of Advanced Display and System Application (shanghai University) Ministry of Education Department of Electronics Science and Engineering Nanjing University

The quality of virtual view based on multi-view video （MVD） plus depth format is often evaluated by PSNR or subjectively judged. However, due to synthesizing arbitrary view images, the virtual view images mostly have no reference images and are only assessed using non-reference. Virtual view images synthesized by depth estimation reference software （DERS） and view synthesis reference software （VSRS） often accompanied with blockiness and other distortions on the edge. In addition, matching level for the depth map and the corresponding texture maps of left and right views also affects the quality of the virtual view. This paper compares the edge similarity of the depth and the corresponding texture maps which generate the intermediate virtual view and combined with the virtual view＇s blockiness which causing blur to evaluate the quality of the virtual view. Experiment results show that the proposed method can reflect the quality of the virtual view better.

关键词： non-reference quality evaluation virtual view multi-view video （MVD） plus depth free viewpoint television （FTV）

来源：评论

学校读者我要写书评

暂无评论

Analysis of Relationships Between Amount of Physical Activity of Patients in Rehabilitation and Their ADL Scores Using Multidimensional PCA

Analysis of Relationships Between Amount of Physical Activit...

引用

International Conference on Mechatronics and Intelligent Robotics, ICMIR 2017

作者： Ishida, Akio Kawakami, Keito Furushima, Daisuke Yamamoto, Naoki Murakami, Jun Faculty of Liberal Studies Kumamoto College National Institute of Technology Kumamoto Japan Advanced Course of Electronics and Information Systems Engineering Kumamoto College National Institute of Technology Kumamoto Japan Division of Health Sciences Graduate School of Medicine Osaka University Osaka Japan Department of Human-Oriented Information Systems Engineering Kumamoto College National Institute of Technology Kumamoto Japan

ISBN: (纸本)9783319659770

This paper investigates relationships between the ADL evaluations of convalescent stroke patients in rehabilitation and their physical activity amounts measured by an accelerometer. A previous study performed a correlation analysis between the activity amount and two FIM items (i.e., motor FIM and cognitive FIM), which is one of the ADL evaluations, and showed the existence of a significant correlation between both of them. In this paper, we performed a correlation analysis and also did a multidimensional PCA (MPCA) of data matrix and tensors, respectively, constructed from more detailed FIM items than above. As the results of the correlation analysis, we showed that the correlation coefficients of the activity amount of walking when compared the motor and cognitive FIM were relatively large, and that the similar tendency to the result of the previous study was obtained. By considering the detailed FIM items, we noticed that correlation coefficients of the locomotion subscale of FIM compared with the walking calories and the number of walking steps were the largest. Furthermore, from the results of performing MPCA, we found several pairs of principal component scores with higher correlation coefficients. The above-mentioned results suggest that the use of accelerometer is considered to be effective in grasping patients’ FIM scores. © 2018, Springer International Publishing AG.

关键词： Accelerometers

来源：评论

学校读者我要写书评

暂无评论

MICROWAVE IMAGING FOR DIELECTRIC OBJECTS UNDER THE BORN APPROXIMATION BASED ON PROJECTION

引用

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS 1992年第4期5卷 194-198页

作者： SUH, KW KIM, SG KIM, SY RA, JW 1Transmission System Development Group Information Systems Business SAMSUNG Electronics P.O. Box 105 Suwon Kyungi-Do Korea2Department of Electrical Engineering Korea Advanced Institute of Science and Technology P.O. Box 150 Cheongyang Seoul Korea3Applied Electronics Laboratory Korea Institute of Science and Technology P.O. Box 131 Cheongyang Seoul Korea4Department of Electrical Engineering Korea Advanced Institute of Science and Technology P.O. Box 150 Cheongyang Seoul Korea

Microwave imaging for dielectric objects under the Born approximation is suggested by using the computerized tomography based on projection. Limiting factors of degradation in reconstructed images are identified and explored in terms of projection function and necessary condition on the first-order Born approximation. To illustrate the usefulness of the presented method, simulation and experiment are performed in this article.

关键词： MICROWAVE IMAGING COMPUTERIZED TOMOGRAPHY PROJECTION INVERSE SCATTERING CONVOLUTION BACK PROJECTION

来源：评论

学校读者我要写书评

暂无评论

Measurement of Absorption Current of Polyester Coated Enameled Wires with Q(t) meter

Measurement of Absorption Current of Polyester Coated Enamel...

引用

2023 International Symposium on Electrical Insulating Materials, ISEIM 2023

作者： Watanabe, Akinao Fukuma, Masumi Sekiguchi, Yoitsu Advanced Electronic and Information Systems Course National Institute of Technology Matsue College Matsue Japan Department of Electrical Engineering and Computer Science National Institute of Technology Matsue College Matsue Japan Energy and Electronics Materials R&D Laboratories Sumitomo Electric Industries Osaka Japan

ISBN: (纸本)9784886864376

A Q(t) meter is used to measure electrical properties in insulating materials. Here, Q(t) is the integral value of circuit current with time t. It is possible to measure the Q(t) of the insulation material of a capacitor and a cable by using Q(t) meter. The current through an insulating material is divided into an instantaneous charging current, an absorption current and an equilibrium leakage current. It is considered that the absorption current is related to charge accumulation in the insulating materials. In this paper, an enameled wire (1.6 PEW) is used to prepare a cable sample, the Q(t) of the coated polyester (PEs) is measured, and extraction of absorption current components from measured Q(t) are reported. © 2023 The Institute of Electrical Engineers of Japan.

关键词： Insulating materials

来源：评论

学校读者我要写书评

暂无评论

Affecting the accuracy of an active vision head 2nd

引用

2nd Hellenic Conference on Artificial Intelligence, SETN 2002

作者： Gasteratos, Antonios Sandini, Giulio Laboratory of Electronics Section of Electronics and Information Systems Technology Department of Electrical and Computer Engineering Democritus University of Thrace XanthiGR-671 00 Greece Laboratory for Integrated Advanced Robotics Department of Communication Computer and System Sciences University of Genoa Viale Causa 13 GenoaI-16145 Italy

ISBN: (纸本)3540434720

In any measuring system the categorization of the error generation factors leads to simplification of complex error problems and to higher suppression of the error. In this paper we categorize, quantify and analyze the errors that affect a binocular active vision head. Simulations have been made and experimental results on a high resolution pan-tilt-vergence mechanism are also proposed. As a conclusion it can be said that the system performs optimal when it is initialized so that the two cameras are perfectly aligned and perpendicular to the baseline. Small variations in the vergence angle or small horizontal deviations of the principal point alters the measurement dramatically. On the other hand, variations in pan and tilt and vertical deviations of the principal point, affect the measurement insignificantly. © Springer-Verlag Berlin Heidelberg 2002.

关键词： Errors

来源：评论

学校读者我要写书评

暂无评论

3D Map Generation for Decommissioning Work

3D Map Generation for Decommissioning Work

引用

International Conference on Intelligent Autonomous systems (ICoIAS)

作者： Ryoma Hanabusa Yasuto Nagase Satoshi Mitsui Toshifumi Satake Naoki Igo Advanced Course of Production System Engineering National Institute of Technology Asahikawa College Asahikawa Japan Control and Information Engineering National Institute of Technology Asahikawa College Asahikawa Japan

ISBN: (数字)9781728160788

ISBN: (纸本)9781728160795

At the Fukushima Daiichi Nuclear Power Station (NPS), robots are used to propel the decommissioning work. Creating a 3D map of the internal environment of the decommissioning work is a necessary technology for improving the working efficiency of a decommissioning robot. The purpose of this research is to realize a 3D map creating a system using a camera by operating the humanoid general-purpose robot Pepper using the Robot Operating system (ROS) and implementing and executing Visual SLAM. The system aims to be applied to a decommissioning robot in the future. In this study, we implemented Visual SLAM methods R-tab Map, which is a method for constructing 3D maps in real-time, and Large-Scale Direct SLAM, which is method that generates a map using luminance with a large gradient between frames without using features for map generation. We also compared and evaluated the effectiveness of the generated maps. Besides, the robot was manually operated using nao_teleop, which can operate Pepper from the ROS library with the PS3 controller, the visualization software rviz, and the point cloud visualization library PointCloudViewer. Using two Visual SLAM's methods, we implemented the experiment. During the experiment, a chair was placed in front of Pepper as an obstacle. In this environment, Pepper was rotated 360 [deg] by manual operation. However, nao_teleop and Visual SLAM methods caused a conflict between the manual operation of Pepper and the 3D map generation process, and both processes stopped. Therefore, the 3D map wasn't generated. To resolve the conflict with operation, Pepper was moved by human and the experiment was again. As a result, the camera image obtained from Pepper was distorted, the map could not be optimized. Therefore, the part of 3D map was only generated. For this reason, to realize a 3D map generation system, it was important to properly calibrate the camera that could acquire a flat image without distortion.

关键词： Three-dimensional displays Cameras Libraries Robot vision systems

来源：评论

学校读者我要写书评

暂无评论

Design of an Arc-shaped Balanced CRLH Waveguide for a Microwave Snow Melting system

Design of an Arc-shaped Balanced CRLH Waveguide for a Microw...

引用

Asia-Pacific Conference on Microwave

作者： Keto Togawa Takeo Kobashi Tsunayuki Yamamoto Advanced Electronics and Information System Engineering Course National Institute of Technology Tsuyama College Tsuyama-shi Japan Department of Integrated Science and Technology National Institute of Technology Tsuyama College Tsuyama-shi Japan

In this paper, an arc-shaped balanced CRLH waveguide for a microwave snow melting system is designed and simulated by an electromagnetic simulator. A balanced frequency of the waveguide is obtained at 2.45 GHz. The frequency is selected as an operating frequency of a snow melting system. Designed arc-shaped balanced CRLH waveguide is sandwiched with two straight-shaped balanced CRLH waveguides, and an electric field distribution in the waveguides is simulated. Observed E-field shows a propagating electromagnetic wave with very long wavelength, and zeroth-order resonance or quasi zeroth-order resonance phenomenon can be obtained at 2.45 GHz.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Effect of light irradiation on electric-field-induced resistance switching phenomenon in planar VO2/C-Al2O3 structure

Effect of light irradiation on electric-field-induced resist...

引用

作者： Mohamad, Nurul Ezreena Okimura, Kunio Sakai, Joe Graduate School of Engineering Electric and Electronic System Engineering Course Tokai University 1117 Hiratsuka Kitakaname Kanagawa 259-1292 Japan Department of Information Telecommunication and Electronics Tokai University 1117 Kitakaname Hiratsuka Kanagawa 259-1292 Japan UMR 6157 CNRS/CEA Universite Francois Rabelais Parc de Granmont 37200 Tours France

A simple device of VO2 film with two terminal electrodes revealed current jump phenomena at certain applied voltage. In this study, we investigated the effect of light irradiation on the electric field-induced resistance switching phenomenon. Based on changes of currentvoltage characteristics under light irradiation, we discussed the effect of light irradiation on this device. © 2009 World Scientific Publishing Company.

关键词： Vanadium dioxide

来源：评论

学校读者我要写书评

暂无评论

Facial Expression Recognition system Using DNN Accelerator with Multi-threading on FPGA

Facial Expression Recognition System Using DNN Accelerator w...

引用

International Symposium on Computing and Networking Workshops (CANDARW)

作者： Takuto Ando Yusuke Inoue Electrical Electronics Information Engineering Major National Institute of Technology Oita College Advanced Course Oita Japan Department of Information Engineering National Institute of Technology Oita College Oita Japan

ISBN: (数字)9798331505349

ISBN: (纸本)9798331505356

In this paper, we implement a stand-alone facial expression recognition system on an SoC FPGA with multi-threading using a Deep learning Processor Unit (DPU). The system consists of two steps: one for face detection step and one for facial expression recognition. In the previous work, the Haar Cascade detector was run on a CPU in the face detection step due to FPGA resource limitations, but this detector is less accurate for profile and variable illumination condition images. Moreover, the previous work used a dedicated circuit accelerator, so running a second DNN inference for face detection on the FPGA would require the addition of a new accelerator. As an alternative to this approach, we run the two inferences by DNN on a DPU, which is a general-purpose CNN accelerator of the systolic array type. Our method for face detection using DenseBox and facial expression recognition using CNN on the same DPU enables the efficient use of FPGA resources while maintaining a small circuit size. We also developed a multi-threading technique that improves the overall throughput while increasing the DPU utilization efficiency. With this approach, we achieved an overall system throughput of 25 FPS and a throughput per power consumption of 2.4 times.

关键词： Power demand Accuracy Image recognition Program processors Face recognition Detectors Throughput Systolic arrays Face detection Field programmable gate arrays

来源：评论

学校读者我要写书评

暂无评论

Fabrication of diamond nanopit arrays by room-temperature curing nanoimprint lithography using glass-like carbon molds

Fabrication of diamond nanopit arrays by room-temperature cu...

引用

2011 MRS Fall Meeting

作者： Kiyohara, Shuji Ito, Chigaya Ishikawa, Ippei Takikawa, Hirofumi Taguchi, Yoshio Sugiyama, Yoshinari Omata, Yukiko Kurashima, Yuichi Electric and Control System Engineering Course Faculty of Advanced Engineering Maizuru National College of Technology 234 Aza Shiroya Maizuru Kyoto 625-8511 Japan Department of Electrical and Electronic Information Engineering Toyohashi University of Technology Toyohashi Aichi 441-8580 Japan Application and Technical Section Elionix Inc. 3-7-6 Motoyokoyama Hachioji Tokyo 192-0063 Japan Department of Mechanical System Engineering University of Yamanashi 4-3-11 Takeda Kofu Yamanashi 400-8511 Japan

ISBN: (纸本)9781605113722

We have proposed the use of glass-like carbon (GC), as mold material because the 27-maximum etching selectivity of polysiloxane film against GC, which was approximately six times larger than that of polysiloxane film against chemical vapor deposited (CVD) diamond film. We have investigated the fabrication of diamond nanopit arrays by room-temperature curing nanoimprint lithography (RTC-NIL) using GC mold, as applications to the emitter and the micro-gear. The polysiloxane has in the state of sticky liquid at room-temperature and negative-exposure characteristic. Therefore, the polysiloxane was used as RTC-imprint resist material, and also used as electron beam (EB) resist (oxide mask) material in EB lithography. We have fabricated the cylindrical GC nanodot mold with 500 nm-diameter, 600 nm-height and 2 μm-pitch. We carried out RTC-NIL using GC mold under the following optimum conditions: time from spin-coating to imprint of 1 min, imprinting pressure of 0.5 MPa and imprinting time of 5 min. Then, we have processed the diamond film with an electron cyclotron resonance (ECR) oxygen ion shower. We have fabricated diamond nanopit array with 250 nm-depth and 500 nm-diameter. The diameter of diamond nanopit pattern was in good agreement with that of GC mold. Moreover, the depth of the diamond nanopit patterns fabricated by RTC-NIL using cylindrical GC mold was three times larger than that using conical diamond mold. © 2012 Materials Research Society.

关键词： Chemical vapor deposition

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：