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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

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Laser Bonding system for Semiconductor Device and MEMS Encapsulation

Laser Bonding System for Semiconductor Device and MEMS Encap...

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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： Yuneng Lai Jianhua Zhang Yuanhao Huang Maoyu Li Zunmiao Chen Key Laboratory of Advanced Display and System Applications (Shanghai University) Ministry of Educat Key Laboratory of Advanced Display and System Applications (Shanghai University) Ministry of Educat

A semi-automatic laser bonding system is developed to provide a localized heating manner for semiconductor device and MEMS encapsulation, especially for devices which have thermal-sensitive materials inside. This system consists of five modules, including laser module, motion module, fixture module, monitoring module and control module. Several bonding tests are carried out using this system with different sets of system parameters, including laser power, laser beam radius and laser moving velocity. Good bonding results are achieved with proper combinations of the system parameters, which also certifies this system is workable.

关键词： Laser beams Power lasers Bonding Semiconductor lasers Glass Laser modes Encapsulation

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The Design of Synchronous Module in AM-OLED display Controller

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

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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

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Three-dimensional MXene/carbon nanotube composite electrodes in flexible 64-channel arrays for noninvasive electromyography signal acquisition

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Science China Materials 2024年第9期67卷 2977-2984页

作者： Lian Cheng Aiying Guo Jun Li Mengjiao Li Qiang Lei Wen Xu Xiaolin Guo Jianhua Zhang School of Microelectronics Shanghai UniversityShanghai201800China Key Laboratory of Advanced Display and System Applications Ministry of EducationShanghai UniversityShanghai200072China

Non-invasive surface electromyography(sEMG)electrodes have vast potential in fields such as healthcare,human-computer interaction,and entertainment,providing diverse information related to electromyographic ***-invasive sEMG electrodes reduce user risks but gather sEMG signals of lower quality compared to invasive ***,various advanced electrode materials have been developed for detecting physiological electrical signals,but the majority of them are single channel ***,we report 64-channel three-dimensional(3D)Ti_(3)C_(2)MXene/CNT composite electrodes fabricated using bonding-driven self-assembly *** electrodes are characterized by low skin-electrode contact impedance and a high signal-to-noise ratio(SNR)for collection of EMG *** electrode arrays exhibit remarkable flexibility,conforming seamlessly to the skin’s ***,the skin-electrode contact impedance of 3D Ti_(3)C_(2)MXene/CNT electrodes decreases by 10-fold compared to Ag/AgCl gel electrodes at a frequency of 100 ***,when collecting sEMG signals from the arm,the prepared Ti_(3)C_(2)MXene/CNT electrodes exhibit lower baseline noise and higher SNR compared to Ag/AgCl gel ***,Ti_(3)C_(2)MXene/CNT electrodes can collect sEMG signals of different hand gestures,while maintaining a high SNR(∼25 dB).By combining machine learning,sEMG signals from different gestures can be identified with a recognition rate exceeding 90%.The exceptional performance and scalability of these 3D Ti_(3)C_(2)MXene/CNT electrodes indicate a promising future for shaping electronic skin and wearable device technologies.

关键词： electrodes surface electromyography skin-contact impedance Ti_(3)C_(2)MXenes CNTs

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Oxide Semiconductor Thin-Film Transistors with High Mobility and Stability

Oxide Semiconductor Thin-Film Transistors with High Mobility...

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International Conference on display Technology, 2024

作者： Yan, Guowen Wang, Dejian Sun, Xiaoqi Wen, Pan Peng, Cong Xu, Lin Ding, Lidong Chen, Fa-Hsyang Li, Xifeng Xi, Wangfeng Xing, Rubo Li, Junfeng Hefei Visionox Technology Co. Ltd Anhui Hefei230000 China Kunshan Govisionox Optoelectronics Co. Ltd Jiangsu Suzhou215301 China Key Laboratory of Advanced Display and System Application Ministry of Education Shanghai University Shanghai200072 China

This paper presents a oxide thin film transistors with high mobility by a new fabricate method. The high mobility TFT with ultra-high mobility of 55cm2/Vs has been obtained, and the PBTS and NBTS has also been optimiz... 详细信息

关键词： Thin film transistors

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Salient object segmentation based on graph cut

Salient object segmentation based on graph cut

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IEEE International Symposium on Intelligent Signal Processing and Communication systems (ISPACS)

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

Salient object segmentation is an important technique for many content based applications. This paper presents an unsupervised salient object segmentation method under the graph cut optimization framework. First, we exploit a kernel density estimation based saliency model to generate the saliency map, which provides the useful cues for object segmentation. Then we exploit the saliency map to adaptively define the region cost term, the boundary cost term and their balancing weight in the cost function, which is minimized using graph cut to obtain a binary segmentation of salient objects. Experimental results on a variety of images demonstrate the better segmentation performance of our approach.

关键词： Image segmentation

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Fast seam carving based on direction map

Fast seam carving based on direction map

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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.

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Diagnosis design based on KWP2000 in body control module

Diagnosis design based on KWP2000 in body control module

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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

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Photothermy-strengthened photocatalytic activity of polydopamine-modified metal-organic frameworks for rapid therapy of bacteria-infected wounds

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Journal of Materials Science & Technology 2021年第3期62卷 83-95页

作者： Donglin Han Yuan Li Xiangmei Liu Kelvin Wai Kwok Yeung Yufeng Zheng Zhenduo Cui Yanqin Liang Zhaoyang Li Shengli Zhu Xianbao Wang Shuilin Wu School of Materials Science&Engineering The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of ChinaTianjin UniversityTianjin 300072China Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional MaterialsHubei Key Laboratory of Polymer MaterialsSchool of Materials Science&EngineeringHubei UniversityWuhan 430062China Department of Orthopaedics&Traumatology Li Ka Shing Faculty of MedicineThe University of Hong KongPokfulamHong Kong 999077China State Key Laboratory for Turbulence and Complex System and Department of Materials Science and Engineering College of EngineeringPeking UniversityBeijing 100871China

Herein,a metal-organic framework(MOF)was modified using polydopamine(PDA)to develop the MOFPDA as a photoresponsive bacteria-killing agent under 660 nm light *** modification using PDA led to the production of not only more heat,but also much more~1O_(2).This is because the PDA could interact with the porphyrin ring of the MOF throughπ-πinteraction and the charge transfer between PDA and the MOFs decreases the ene rgy of the band of hybrid *** addition,greater levels of hyperthermia induced by PDA modification accelerated the charge trans fe r,which significantly strengthened the photocatalytic perfo rmance of MO ***,after modification,the light abso rbance and water dispersibility of nanoparticles were both enhanced;both are important for the improvement of photocatalytic and photothermal ***,MOF-PDA exhibited the highly effective antibacterial efficacy of 99.62%and 99.97%against Staphylococcus aureus and Escherichia coli,respectively,under 20 min 660 nm light irradiation.

关键词： Metal-organic framework Photosensitizer Antibacterial Photothermal Wound healing

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Nonparametric saliency detection using kernel density estimation

Nonparametric saliency detection using kernel density estima...

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IEEE International Conference on Image Processing

作者： Zhi Liu Yinzhu Xue Liquan Shen Zhaoyang Zhang School of Communication and Information Engineering Shanghai University China Key Laboratory of Advanced Display and System Application Ministry of Education China

This paper proposes a nonparametric saliency model based on kernel density estimation (KDE) mainly aiming at content-based applications such as salient object segmentation. A set of KDE models are constructed on the basis of regions segmented using the mean shift algorithm. For each pixel, a set of color likelihood measures to all KDE models are calculated, and then the color saliency and spatial saliency of each KDE model are evaluated based on its color distinctiveness and spatial distribution. The final saliency map is generated by combining saliency measures of KDE models and color likelihood measures of pixels. Experimental results demonstrate the better saliency detection performance of our saliency model.

关键词： Image color analysis Mathematical model Pixel Kernel Computational modeling Image segmentation Estimation

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