检索结果-内蒙古大学图书馆

3DV quality model based depth maps for view synthesis in FTV system

Journal of Shanghai University(English Edition) 2011年第4期15卷 335-341页

作者：张秋闻安平张艳张兆杨王元庆 Key Laboratory of Advanced Display and System Application (Shanghai University) Ministry of EducationShanghai 200072P.R.China School of Communication and Information Engineering Shanghai University Department of Computer Science and Technology Anhui University of Finance and EconomicsBengbu 230030AuhuiP.R.China Department of Electronics Science and Engineering Nanjing University

Depth maps are used for synthesis virtual view in free-viewpoint television （FTV） systems. When depth maps are derived using existing depth estimation methods, the depth distortions will cause undesirable artifacts in the synthesized views. To solve this problem, a 3D video quality model base depth maps （D-3DV） for virtual view synthesis and depth map coding in the FTV applications is proposed. First, the relationships between distortions in coded depth map and rendered view are derived. Then, a precisely 3DV quality model based depth characteristics is develop for the synthesized virtual views. Finally, based on D-3DV model, a multilateral filtering is applied as a pre-processed filter to reduce rendering artifacts. The experimental results evaluated by objective and subjective methods indicate that the proposed D-3DV model can reduce bit-rate of depth coding and achieve better rendering quality.

关键词： free-viewpoint television （FTV） 3D video quality model base depth maps （D-3DV） view synthesis

来源：评论

学校读者我要写书评

暂无评论

Diagnosis design based on KWP2000 in body control module

Diagnosis design based on KWP2000 in body control module

引用

International Conference on Measuring technology and Mechatronics Automation

作者： Sun, Bin Hu, Yue-Li Wang, Kun Key Laboratory of Advanced Display and System Applications Ministry of Education Shanghai University Shanghai 700072 China College of Mechanical and Electronic Engineering and Automation Shanghai Key Laboratory of Power Station Automation Technology Shanghai 700072 China

ISBN: (纸本)9780769542966

This article describes the KWP2000 protocol interface design in the body control module and the related information acquisition mode in vehicle body control module, using the MC33972 chip to multi-sample analog signal. The fault diagnosis will be known through KWP2000 bus according the sampling data after MCU judge error. The technology described in this article can be widely used in the design of vehicle electrical equipment.

关键词： Fault detection

来源：评论

学校读者我要写书评

暂无评论

Interactive object segmentation using iterative adjustable graph cut

Interactive object segmentation using iterative adjustable g...

引用

2011 IEEE Visual Communications and Image Processing, VCIP 2011

作者： Shi, Ran Liu, Zhi Xue, Yinzhu Zhang, Xiang School of Communication and Information Engineering Shanghai University Shanghai 200072 China Key Laboratory of Advanced Display and System Application Shanghai University Ministry of Education Shanghai 200072 China Institute of Image Processing and Pattern Recognition Shanghai Jiaotong University Shanghai 200240 China

ISBN: (纸本)9781457713200

Interactive object segmentation is widely used for extracting any user-interested objects from natural images. A common problem with many interactive segmentation approaches is that the object segmentation quality is degraded due to inaccurate object/background seeds provided by the user. This paper proposes an iterative adjustable graph cut to efficiently solve this problem. First, object/background seeds are initialized based on the object segmentation result obtained with the user-specified scribbles as the interactive input. Then, an iterative seed adjustment scheme is exploited to correct inaccurate seeds and extract new suitable seeds via graph cut, in which the balancing weight between energy terms are adaptively updated to protect stable seeds and speedup the iteration process. Finally, suitable seeds are obtained and graph cut is used to segment the objects. Experimental results demonstrate the better segmentation performance of our approach even if user provides rather rough seeds. © 2011 IEEE.

关键词： Image segmentation

来源：评论

学校读者我要写书评

暂无评论

The Design of Synchronous Module in AM-OLED display Controller

The Design of Synchronous Module in AM-OLED Display Controll...

引用

The 2011 International Conference on Electric and Electronics (EEIC 2011)

作者： Junwei-Ma Feng Ran School of Mechatronical Engineering and Automation Shanghai University Key Laboratory of advanced Display and System Application Ministry of Education Shanghai University

On the basis of the analysis to the framework of AM-OLED display controllers, a key module — synchronous module is studied. In this paper, a FIFO circuit（first in first out） is designed using Gray convert technology and dual-port ram, which realizing scatheless transmit between different clock domain. The working principle of FIFO is analyzed, and the optimized FIFO circuit structure was put forward to improve the working stability of the FIFO. The synchronous module circuit was implemented by Verilog HDL language simulated through VCS（Verilog compiled simulator）. The design had been applied successfully to a type of full colour TFTLED panel driver controller with gray levels 256, frame scanning frequency 60 Hz ~ 100 Hz. The testing results showed that this controller worked well with a stable and vivid display.

关键词： AM-OLED,display controller,synchronous module,FIFO

来源：评论

学校读者我要写书评

暂无评论

Fast seam carving based on direction map

Fast seam carving based on direction map

引用

IET International Communication Conference on Wireless Mobile and Computing (CCWMC 2011)

作者： Huan Du Zhi Liu Yinzhu Xue Ran Shi School of Communication and Information Engineering Shanghai University China Key Laboratory of Advanced Display and System Application Ministry of Education China

ISBN: (纸本)9781618399571

Seam carving is a new image retargeting method, which can alleviate the distortion on the main content of the image compared to the traditional scaling method. However, the original seam carving method uses the gradient amplitudes of pixels to construct the energy map, but neglects the gradient directions of pixels. Actually, the gradient direction refers to the direction where the pixel has the maximum rate of change. We can use the gradient direction of pixels to construct the direction map, and then naturally generate multiple seams from top to bottom based on the direction map. In addition, we use the priority windows to avoid intersecting seams. Experimental results show that our method can accelerate the speed of seam carving about 98 times while maintaining the quality of the image retargeting result.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Depth estimation system suitable for hardware design

引用

Journal of Shanghai University(English Edition) 2011年第4期15卷 325-330页

作者：李贺建左一帆杨高波安平王建伟滕国伟 Key Laboratory of Advanced (Shanghai University) Display and System Application Ministry of EducationShanghai 200072P.R.China College of Computer and Communication Hunan UniversityChangsha 410082P.R.China School of Communication and Information Engineering Shanghai UniversityShanghai 200072P.R.China

Depth estimation is an active research area with the developing of stereo vision in recent years. It is one of the key technologies to resolve the large data of stereo vision communication. Now depth estimation still has some problems, such as occlusion, fuzzy edge, real-time processing, etc. Many algorithms have been proposed base on software, however the performance of the computer configurations limits the software processing speed. The other resolution is hardware design and the great developments of the digital signal processor （DSP）, and application specific integrated circuit （ASIC） and field programmable gate array （FPGA） provide the opportunity of flexible applications. In this work, by analyzing the procedures of depth estimation, the proper algorithms which can be used in hardware design to execute real-time depth estimation are proposed. The different methods of calibration, matching and post-processing are analyzed based on the hardware design requirements. At last some tests for the algorithm have been analyzed. The results show that the algorithms proposed for hardware design can provide credited depth map for further view synthesis and are suitable for hardware design.

关键词： 3-D TV （3DTV） depth estimation hardware design rank transform census transform

来源：评论

学校读者我要写书评

暂无评论

Label-free DNA sensors based on pentacene thin-film transistors

Label-free DNA sensors based on pentacene thin-film transist...

引用

第七届全国暨华人有机分子和聚合物发光与光电特性学术会议

作者： Jun Wang Key Laboratory of Advanced Display and System Application (Shanghai University) Ministry of Education.Shanghai 200072 People ''s Republic of China

来源：评论

学校读者我要写书评

暂无评论

The influence of the Si02 gate insulator thickness to the performance and Bias-voltage stress stability of ZnO thin-film-transistors

The influence of the Si02 gate insulator thickness to the pe...

引用

第七届全国暨华人有机分子和聚合物发光与光电特性学术会议

作者： Fan Zhou Huaping Lin Jun Li X.Y.Jiang Z.L.Zhang Jianhua Zhang School of Materials Science and Engineering Shanghai University Shanghai 200072 China School of Materials Science and Engineering Shanghai University Shanghai 200072 China Key Laboratory of Advanced Display and System Application Ministry of Education Shanghai University 200072China Key Laboratory of Advanced Display and System Application Ministry of Education Shanghai University 200072China

来源：评论

学校读者我要写书评

暂无评论

Study into High Temperature Reliability of Isotropic Conductive Adhesive

Study into High Temperature Reliability of Isotropic Conduct...

引用

2011 12th International Conference on Electronic Packaging technology & High Density Packaging(2011 电子封装技术与高密度封装国际会议)

作者： Wenhui Du Huiwang Cui Si Chen Zhichao Yuan Lilei Ye Johan Liu Key Laboratory of Advanced Display and System Applications Ministry of Education and SMIT Center S Key Laboratory of Advanced Display and System Applications Ministry of Education and SMIT Center S Shangda Rui Hu Microsystem Integration Technology Co.Ltd Room 101 Science &Technology Building Sh Smart High Tech AB Fysikgrand 3 41296 Gothenburg SWEDEN Key Laboratory of Advanced Display and System Applications Ministry of Education and SMIT Center S

With the rapid development of technologies for high density assembly and packaging in electronic industry, isotropic conductive adhesive (ICA) has been paid more and more attention as a potential substitute for solder, due to its advantages of low processing temperature, simple processing conditions and good manufacturability. However, studies into the reliability of ICA are not as abundant as those of solder. As a composite material, the failure feasibility of ICA not only depends not only on the variation in performance of different constituent parts, such as high temperature aging of the polymer, aging due to moisture absorption and oxidization of filler particles, but also on interface changes. Thus, the failure mechanism of ICA seems to be complicated and studies into the reliability of ICA are also necessary. Reliability in humidity and heat has been investigated in previous works, and in this paper high temperature reliability will be studied as a comparison. Some reliability tests and results will be given and some failure mechanisms discussed. Finally, we present some discussion about the further optimization of reliability for follow-up studies.

关键词： Aging Reliability Conductivity Conductive adhesives Materials Packaging Temperature

来源：评论

学校读者我要写书评

暂无评论

Study on the Reliability of High-power LEDs under Temperature Cycle

Study on the Reliability of High-power LEDs under Temperatur...

引用

2011 12th International Conference on Electronic Packaging technology & High Density Packaging(2011 电子封装技术与高密度封装国际会议)

作者： Fan Huang Luqiao Yin Shuzhi Li Guangming Xu Huafeng Yan Yu Chen Jianhua Zhang Lianqiao Yang Key Laboratory of Advanced Display and System Applications (Shanghai University) School of Mechatron Key Laboratory of Advanced Display and System Applications (Shanghai University Shanghai Research Center of Eengineering and Technology for Semiconductor Lighting Shanghai Yaming Lighting co. Ltd.Ministry of Education.P.O.B 143 149 Yanchang Rd. Shanghai Univer Key Laboratory of Advanced Display and System Applications (Shanghai University) School of Mechatron

High-power LEDs have been widely used and have a big potential market due to the many advantages compared to conventional light sources. Reliability is one of the most important issues for the application of LEDs. In order to study the degradation mechanism and the stability of LED withstanding cyclical exposures to temperature variations, life test was carried out under temperature cycle testing. The experiment was designed basing on the EIAJ ED-4701/100. Four groups of 1 W high power LEDs adopting different material and structures were utilized. The temperature cycle accelerated life test under the condition of -25℃/125℃. After the accelerated test, the optical performance of the four kinds of devices were compared and analyzed, and the thermal performance of the LEDs was also tested, analyzed and discussed. At last, the reliability differences of high-power LEDs were analyzed and degradation mechanism of high power LEDs under temperature cycling was discussed.

关键词： Light emitting diodes Life estimation Reliability Thermal analysis Degradation Junctions Electronic packaging thermal management

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：