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2010 International Conference on Life system Modeling and Simulation, LSMS 2010 and the 2010 International Conference on Intelligent Computing for Sustainable Energy and Environment, ICSEE 2010

作者： Guanghua, Chen Anqi, Wang Dengji, Hu Shiwei, Ma Weimin, Zeng School of Mechatronics Engineering and Automation Shanghai Key Laboratory of Power Station Automation Technology Shanghai University Shanghai 200072 China Key Laboratory of Advanced Display and System Applications Microelectronic Research and Development Center Shanghai University Shanghai 200072 China

Interpolation is the main bottleneck in AVS real-time high definition video encoder for its high memory bandwidth and large calculation complexity caused by the new coding features of variable block size and 4-tap filter. In this paper, a high performance VLSI architecture of interpolation supporting AVS Baseline@L4 is presented. Vertical redundant data reuse, horizontal redundant data reuse and sub-pixel data reuse schemes are presented to reduce memory bandwidth and processing cycle. The separated 1-D interpolation filters are used to improve throughput and hardware utilization. The proposed design is implemented on FPGA with operating frequency of 150MHz and can support 1080p (1920x1080)/30fps AVS real-time encoder. It is a useful intellectual property design for real-time high definition video application. © 2010 Springer-Verlag.

关键词： Pixels

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The Effect of Functionalized Silver on Rheological and Electrical Properties of Conductive Adhesives

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ECS Transactions 2011年第1期34卷

作者： Qiong Fan Huiwang Cui Chune Fu Dongsheng Li Xin Tang Zhichao Yuan Lilei Ye Johan Liu Ministry of Education and SMIT Center Shanghai University Key Laboratory of Advanced Display and System Applications Ministry of Education and SMIT Center Shanghai University Key Laboratory of Advanced Display and System Applications Ministry of Education and SMIT Center Shanghai University No.149 Yanchang Road Shanghai Shanghai 200072 China Shang Da Rui Hu Microsystem Integration Technology Co.Ltd Shanghai University SHT Smart High Tech AB Shanghai University SE-412 96 Gothenburg Gothenburg 41296 Sweden

This research used low molecular surface modifiers, and observed that chemisorptions took place through the formation of a bond between silver surface and an adsorbed molecule, which improved the dispersion of silver flakes in the organic resin. Several different functionalizers, such as thioglycolic acid, silane and di-acid, were used to functionalize the silver surface. Results of shear viscosity, bulk resistivity etc. showed that by using these low molecular organic functionalizers, isotropic conductive adhesives (ICAs) with lower shear viscosity and better electrical conductivity at high silver fillers content were obtained. The adipic acid had the greatest effect on the rheological and electrical property of ICAs, so its weight percentage in silver flakes was also optimized; ICAs displayed the maximum electrical conductivity when there was 0.5 wt% of silver flakes.

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An Efficient Deblocking Filter Algorithm in Multi-view Video Coding

An Efficient Deblocking Filter Algorithm in Multi-view Video...

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2010 International Conference on Audio,Language and Image Processing(2010年音频、语言与图像处理国际会议 ICALIP 2010)

作者： Ying Fu Yongfang Wang Zhaoyang Zhang School of Communication and Information Engineering Shanghai University Shanghai 200072 China Key Laboratory of Advanced Display and System Application Ministry of Education Shanghai 200072 China

ISBN: (纸本)9781424458653

Image and video coding in block-based image coding can cause blocking artifacts, which severely degrade visual quality in the compressed sequences. Loop deblocking filter method can reduce these artifacts and improve the video objective and subjective quality obviously. In this paper, we propose an efficient deblocking filtering method for multiview video coding, which considers the color bleeding distortion. Experimental results show that this proposed algorithm outperforms the traditional deblocking algorithm in terms of PSNR and subjective visual quality when QP value is relatively high.

关键词： Video coding Filtering algorithms Peak signal-to-noise ratio image coding Image images block effect Artifacts model based image coding

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Moving object segmentation based on new likelihood functions

Moving object segmentation based on new likelihood functions

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

作者： Xiang Zhang Zhi Liu Jie Yang Institute of Image Processing and Patter Recognition Shanghai Jiaotong University China Key Laboratory of Advanced Display and System Application Ministry of Education Shanghai University China

Accurate segmentation of moving objects from a video sequence is still a difficult task. A moving object segmentation method is proposed in this paper to deal with the segmentation splits and defects. First, it is claimed that the confusion point is one reason for the segmentation inaccuracy, and corresponding solution is also presented. According to the solution, new likelihood functions are proposed to compute membership probabilities, which are then used for final segmentation within an energy minimization framework. Unlike related algorithms which compute membership probabilities using kernel density estimation, the proposed method models the membership probabilities as functions with kernel density estimation as the independent variable. Experiments show that improved results are generated by the proposed likelihood functions.

关键词： Radio access networks

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Improved Delay Fault Coverage in SoC Using Controllable Multi-Scan-Enable

Improved Delay Fault Coverage in SoC Using Controllable Mult...

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2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology(第十届固态和集成电路技术国际会议 ICSICT-2010)

作者： Jin-yi ZHANG Xu-hui HUANG Wan-lin CAI Han-yi WENG Key Laboratory of Advanced Displays and system Application Ministry of Education Shanghai Universi Microelectronic Research & Development Center Shanghai University Key aboratory of Advanced Displays and system Application Ministry of Education Shanghai Universit

ISBN: (纸本)9781424457977

This paper presents a method of multi-Scan-Enable DFT design for at-speed scan testing to improve transition fault coverage. Base on the method, we build a novel TR-TC (Test Resources-Test Coverage) associated test cost mathematical model to effectively control the complexity of at-speed DFT design and establish the optimization number of ScanEnable, which provides a reliable target control value in multi-Scan-Enable DFT design for at-speed scan testing. Experiment results for transition fault coverage improvement on three industrial SoC circuits and the upper limit of the number of Scan-Enable are presented.

关键词： sweep test scanning fault latency controlling value fault coverage discrete Fourier transform Coverage test coverage Mathematical Model

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Local fractional Fourier's transform based on the local fractional calculus

Local fractional Fourier's transform based on the local frac...

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International Conference on Electrical and Control Engineering, ICECE 2010

作者： Yang, Xiaojun Kang, Zongxm Liu, Changhe Shanghai TAYEE Electric Co. Ltd. Beimin Road 101 Chedun Town Songjiang District Shanghai 201611 China School of Mechanics and Civil Engineering China University of Mining and Technology Xuzhou Jiangsu 221116 China Key Laboratory of Advanced Display and System Application Ministry of Education Shanghai University Shanghai 200072 China

A new modeling for the local fractional Fourier's transform containing the local fractional calculus is investigated in fractional space. The properties of the local fractional Fourier's transform are obtained... 详细信息

ISBN: (纸本)9780769540313

关键词： Fourier transforms

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Effects of surface chemical treatment and annealing on p-GaN/ZnO:Ga contact

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Faguang Xuebao/Chinese Journal of Luminescence 2010年第6期31卷 848-853页

作者： Wang, Shu-Fang Li, Xi-Feng Zhang, Jian-Hua Key Laboratory of Advanced Display and System Applications Shanghai University Shanghai 200072 China School of Mechanical and Electronic Engineering and Automation Shanghai University Shanghai 200072 China

ZnO:Ga (GZO) transparent conductive thin film was deposited on p-GaN acting as the current spreading layer, but it leads to a large contact barrier because of the formation of Schottky contact. However, ohmic contact is of great importance to powered LED. In order to decrease the contact barrier, HCl and NaOH treatment of the p-GaN surface and annealing were employed in this work. The effects of different chemical treatment and annealing on p-GaN/GZO contact property were studied. It is obvious that solutions of alkaline treatment of p-GaN surface can decrease the interfacial barrier, which led to ohmic contact, and the barrier can be lightly increased by annealing.

关键词： Zinc oxide

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Warpage simulation for LCD interconnected by NCF

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Cailiao Kexue yu Gongyi/Material Science and Technology 2010年第6期18卷 857-861页

作者： Zhang, Jian-Hua Yuan, Fang Zhang, Jin-Song Key Laboratory of Advanced Display and System Applications of Ministry of Education Shanghai University Shanghai 200072 China College of Mechatronics Engineering and Automation Shanghai University Shanghai 200072 China

To study the reliability of the Chip-on-Glass (COG) module interconnected by Non-Conductive-Adhesive (NCF), this paper applied finite element method (FEM) to simulate the fields of temperature and stress in COG. A 3D model of the COG module had been established and a sequence coupled field had been done to calculate the warpage and inner stress. In the thermalcompression bonding stage, the thermal process was a steady state, which produced a low temperature difference in the COG module, while the NCF absorbed and relaxed the thermal stress and strain to weaken warpage. In the cooling stage, the process was non-steady and a significant temperature difference between the interfaces of bump/NCF and NCF/substrate was induced at the beginning. This generated a high thermal stress difference to yield a large warpage. The residual stress and warpage were proportional to the decrease of the mechanical loading in the thermal compression bonding stage and the temperature difference in the cooling stage.

关键词： Glass

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Effects of Surface Pretreatments on p-GaN/GZO Contact by rf Magnetron Sputter

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ECS Transactions 2011年第1期34卷

作者： Wanjing Wang Xifeng Li Jinsong Zhang Jianhua Zhang School of Mechatronics Engineering and Automation Shanghai University No. 149 Rd Yanchang Shanghai Shanghai 200072 China Shanghai University Key Laboratory of Advanced Display and System Applications of Ministry of Education & School of Mechatronics Engineering and Automation Shanghai University No 149 Rd Yanchang Shanghai Shanghai 200072 China

The Effects of surface pretreatments of p-GaN using H2SO4, HF, KOH solution on the optical and electrical properties of GZO/p-GaN contacts have been investigated using a rf magnetron sputter deposition. The current-voltage characteristics of GZO/p-GaN contact is slightly improved using KOH solution treatment. Contact barrier of GZO/p-GaN can be considerably reduced on annealing at 530 °C for 15 min in N2 ambient and the ohmic contact is almost achieved for with KOH-treated sample. the light luminance of 86.7 cd/m2 at current of 20 mA is obtained for GZO electrodes of LEDs with KOH pretreatment.

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Uncalibrated Camera Vision Pointing Recognition for HCI

Uncalibrated Camera Vision Pointing Recognition for HCI

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IEEE International Conference on Computational Science and Engineering, CSE

作者： Ye-Peng Guan School of Communication and Information Engineering Shanghai University China Key Laboratory of Advanced Displays and System Application Ministry of Education Shanghai China

Among gestures in non-verbal communication, pointing gesture can be taken as one of natural human computer interfaces. Vision based hand pointing is an optimal model for human-computer interaction (HCI). One of key problems among the vision based pointing gesture is how to recognize the pointing. Aiming at some limits existing in the literature, a novel method is developed to estimate pointing gestures based on some non-calibrated cameras. Multiple un-calibrated cameras are adopted to determine the pointing target based on pointing features extracted from multiple cameras and support vector machine (SVM) classifier. No explicit constraints are set on the cameras placement. Pointing user can move freely inside a wider interaction environment while pointing at some targets. The mentioned approach does not constrain the pointing surface whether is flat or not, or the target is visible by the cameras. Edge detection based on multi-scale wavelet transformation is used to extract pointing objects from a clutter background. Experiments have shown that the developed approach is efficient for pointing recognition by comparisons.

关键词： Cameras Support vector machines Image segmentation Human computer interaction Kernel Feature extraction Training

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