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Depth map upsampling using segmentation and edge information 1

8th International Conference on Image and Graphics, ICIG 2015

作者： Zheng, Shuai An, Ping Zuo, Yifan Zou, Xuemei Wang, Jianxin School of Communication and Information Engineering Shanghai University Shanghai200072 China Key Laboratory of Advanced Display and System Application of the Ministry of Education Shanghai200072 China

ISBN: (数字)9783319219639

ISBN: (纸本)9783319219622

A depth upsampling method based on Markov Random Field is proposed, considering the depth and color information. First, the initial interpolated depth map is inaccurate and oversmooth, we use a rectangle window centered on every pixel to search the maximum and minimum depth value of the depth map to find out the edge pixels. Then, we use the depth information to guide the segmentation of the color image and build different data terms and smoothness terms for the edge and non-edge pixels. The result depth map is piecewise smooth and the edge is sharp. In the meanwhile, the result is good where the color information is consistent while the depth is not or where the depth information is consistent while the color is not. Experiments show that the proposed method performs better than other upsampling methods in terms of mean absolute difference (MAD). © Springer International Publishing Switzerland 2015.

关键词： Color

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A new hybrid error concealment for multi-view video

A new hybrid error concealment for multi-view video

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IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2015

作者： Yu, Hou Ran, Ma Panpan, Li Ping, An Chao, Yang School of Communication and Information Engineering Shanghai University Shanghai200072 China Key Laboratory of Advanced Display and System Application of the Ministry of Education Shanghai200072 China

ISBN: (纸本)9781479919482

The paper proposes a new hybrid error concealment for the multi-view video (MVV). Firstly, the lost macroblocks (MBs) are classified into the static MBs and the motive MBs by the motion information. Then the static MBs are repaired by image inpainting, which is improved to apply to inter and inter-view frame. The motive MBs are fixed by outer boundary matching algorithm (OBMA), in which candidate motion vector (MV) set is also expanded to inter and interview frame. The experimental results show that the hybrid algorithm can conceal the lost MBs with lower complexity and improve the subjective and objective quality, compared with traditional concealment algorithm. © 2015 IEEE.

关键词： Image enhancement

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LEDs: High‐Efficiency and Stable Quantum Dot Light‐Emitting Diodes Enabled by a Solution‐Processed Metal‐Doped Nickel Oxide Hole Injection Interfacial Layer (Adv. Funct. Mater. 42/2017)

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advanced Functional Materials 2017年第42期27卷

作者： Fan Cao Haoran Wang Piaoyang Shen Xiaomin Li Yanqiong Zheng Yuequn Shang Jianhua Zhang Zhijun Ning Xuyong Yang Key Laboratory of Advanced Display and System Applications Education of Ministry Shanghai University 149 Yanchang Road 200072 China School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road Pudong Shanghai 201210 China

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Hole transporting material 5,10,15-tribenzyl-5Hdiindolo[3,2-a:3',2'-c]-carbazole for efficient optoelectronic applications as an active layer

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Chinese Physics B 2015年第2期24卷 428-431页

作者：郑燕琼 William J.Potscavage Jr 张建华魏斌黄荣娟 Key Laboratory of Advanced Display and System Applications Ministry of EducationShanghai University Center for Organic Photonics and Electronics Research(OPERA) and International Institute for Carbon Neutral Energy Research(WPI-I2CNER) Kyushu University

In order to explore the novel application of the transparent hole-transporting material 5,10,15-tribenzyl-5Hdiindolo[3,2-a：3＇,2＇-c]-carbazole（TBDI）,in this article TBDI is used as an active layer but not a buffer layer in a photodetector（PD）,organic light-emitting diode（OLED）,and organic photovoltaic cell（OPV） for the first ***,the absorption and emission spectra of a blend layer comprised of TBDI and electron-transporting material bis-（2-methyl-8-quinolinate） 4-phenylphenolate（BAlq） are *** on the absorption properties,an organic PD with a peak absorption at 320 nm is fabricated,and a relatively-high detectivity of 2.44×10^（11） cm· Hz^（1/2）/W under 320-nm illumination is *** TBDI/tris（8-hydroxyquinoline） aluminum（Alq_3） OLED device exhibits a comparable external quantum efficiency and current efficiency to a traditional 4,4-bis[N-（l-naphthyl）-N-phenyl-amino]biphenyl（α-NPD）/Alq_3 OLED.A C_（70）-based Schottky junction with 5 wt%-TBDI yields a power conversion efficiency of 5.0%,which is much higher than 1.7%for an α-NPD-based junction in the same *** results suggest that TBDI has some promising properties which are in favor of the hole-transporting in Schottky junctions with a low-concentration donor.

关键词： 5 10 15-tribenzyl-5H-diindolo[3 2-a：3＇ 2＇-c]-carbazole photodetector organic light-emitting diode Schottky junction

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An analysis on damage of light-emitting diodes reliability induced by electronic static discharge

An analysis on damage of light-emitting diodes reliability i...

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International Conference on Electronic Packaging Technology

作者： Tingting Nan Piaopiao He Luqiao Yin Jianhua Zhang School of Materials Science and Engineering Shanghai University Key Laboratory of Advanced Display and System Applications Shanghai University Ministry of Education

ISBN: (纸本)9781509013975

The influence of different degrees of high reverse-bias stress on high power light-emitting diodes (LEDs) was investigated based on the aging of LED devices under the stress of 85℃/85% RH. GaN-based blue LEDs were respectively tested by negative Human-Body-Mode (HBM) electronic static discharge (ESD) at -1000 V, -2000 V, -3000 V, -4000 V and -5000 V. The electrical performances and optical performances of samples were measured before and after ESD test. The LEDs stressed at -1000 V, -2000 V and -3000 V showed a soft breakdown due to the generation of defect inside the chip and LEDs stressed at -4000V and -5000V showed a thermal breakdown. The thermal breakdown made temperature rise rapidly and formed a melting channel, which caused the damage of the LED. Though the electrical performances and optical performances of LEDs stressed at -1000 V, -2000 V and -3000 V did not show conspicuous degradation, the damage induced by ESD affect the reliability of LEDs.

关键词： LED ESD Aging Reliability

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High-efficiency red phosphorescent emitter and its application in color-tunable white organic light-emitting diodes

High-efficiency red phosphorescent emitter and its applicati...

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作者： Zhang, Qi Guo, Kun Ping Zhang, Jing Wei, Bin School of Materials Science and Engineering Shanghai University Shanghai China Key Laboratory of Advanced Display and System Applications Ministry of Education Shanghai University Shanghai China

We report high-efficiency red organic light-emitting diodes (OLEDs) and color-tunable white OLEDs using a novel red phosphorescent material. The transient PL decay measurement indicates that this red emitter exhibits a very-short lifetime, which is dependent on dopant concentration. Based on an optimized dopant concentration, we have fabricated a high-efficiency red electroluminescent device with a maximum external quantum efficiency (EQE) up to ηEQE= 22.6%. Furthermore, the color-tunable white organic light-emitting diodes by introducing this red dopant have been fabricated, in which CIE chromaticity coordinates follows the Planckian locus in warmer-color regions. Copyright © 2015 American Scientific Publishers All rights reserved.

关键词： Luminescent devices

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Comparison of smoothing methods for the analysis of transient thermal resistance

Comparison of smoothing methods for the analysis of transien...

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International Conference on (ICEPT) Electronic Packaging Technology

作者： Yanan Liu Zhangfu Chen Jianhua Zhang Lianqiao Yang The School of Materials Science and Engineering Shanghai University Shanghai China Ministry of Education Key Laboratory of Advanced Display and System Applications (Shanghai University) The School of Mechanical & Electronic Engineering and Automation Shanghai University Shanghai China Shanghai University Shanghai P.R.China

ISBN: (纸本)9781509013975

In this paper, the analysis of transient thermal resistance is carried out on the basis of the regularization smoothing method and the Fourier series expansion method. These two methods are used to smooth cooling curve under the hypothetical model, and their result of smoothing and derivation are contrasted to the move average smoothing method under the actual model measured by T3ster. From theoretical model analysis and actual measured data analysis and application, it can be seen that the methods proposed have good effect on the analysis of transient thermal resistance.

关键词： Resistance Performance evaluation Heating

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A dynamic interactive pooling based human-computer interaction

International Journal of Multimedia and Ubiquitous Engineeri...

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International Journal of Multimedia and Ubiquitous Engineering 2015年第8期10卷 125-138页

作者： Li, Yulong Guan, Yepeng Ma, Jinfeng School of Communication and Information Engineering Shanghai University China Key Laboratory of Advanced Displays and System Application Ministry of Education China

Human-computer interaction (HCI) has great potential for applications in many fields. A HCI method has been developed based on audio-visual perceptive features and dynamic interactive pooling. A mode analysis based fusion strategy is proposed to fuse the interactive responses from audio-visual modalities especially for the case there are deviations from the modalities at the same time. The developed approach can be applied with a better performance even in single modal with multiple interactive users in the scenario. The users in the scenario are endowed with a fair chance to perform HCI by their interactive priorities no matter how many modalities used, and the interactive authority and priority are updated dynamically according to the variation of HCI content. The scenario and multiple users altogether are regarded as a dynamic HCI pooling. The diversity of interactive habits among multiple users is considered in an ordinary hardware from a crowded scene without any hypothesis for the scenario contents in advance. The pooling is updated dynamically to meet the user demands with the most intentions preferentially. Comparative study with state-of-the-arts has indicated the superior performance of the proposed method. © 2015 SERSC.

关键词： Human computer interaction

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Theoretical and experimental studies on microcavity organic light-emitting diodes with different emitters

Theoretical and experimental studies on microcavity organic ...

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16th Annual Conference and 5th International Conference on Chinese Society of Micro-Nano Technology, CSMNT 2014

作者： Peng, Cuiyun Wei, Mengjie Huang, Rongjuan Guo, Kunping Jing, Yuelin Xu, Tao Wei, Bin School of Mechanical Engineering and Automation Shanghai University 149 Yanchang Road Shanghai200072 China Key Laboratory of Advanced Display and System Applications Ministry of Education Shanghai University 149 Yanchang Road Shanghai200072 China

ISBN: (纸本)9783038354628

We have theoretically and experimentally investigated the microcavity organic light-emitting diodes (MOLEDs) that enhanced the emission intensity and narrowed the spectra simultaneously. In this work, MOLEDs with the reflectivities of 70% and 90% have been successfully fabricated. Comparing to non-cavity OLEDs, the maximum forward electroluminescence intensity and the peak luminescence can be improved by 6.8 times and 2.2 times, respectively. The full width at half maximum could be sharply narrowed to 10 nm. The different configurations of MOLEDs with varied emitting layers have also been evaluated which fitted well with the experimental results. © (2015) Trans Tech Publications, Switzerland.

关键词： Reflection

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A novel solution-based self-assembly approach to preparing ultralong titanyl phthalocyanine sub-micron wires

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Chinese Physics B 2014年第7期23卷 655-660页

作者：朱宗鹏魏斌张建华王军 School of Materials Science and Engineering Shanghai University Key Laboratory of Advanced Display and System Applications Ministry of EducationShanghai University

Ultralong titanyl phthalocyanine （TiOPc） sub-micron wires have been synthesized by a novel solution-based self- assembly method. By using different solvents, changing the mass concentration and the solvent vapor pressure, the length and the shape of the wires can be adjusted. The mixed-phase properties of the TiOPc sub-micron wires were investigated by the ultraviolet-visible （UV-vis） absorption spectrum and X-ray diffraction. Organic transistors based on these wires were studied, which show the typical p-channel characteristics.

关键词： titanyl phthalocyanine sub-micron wire transistor solution method

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