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Frame-layer bit allocation for multi-view video coding based on frame complexity estimation

Journal of Shanghai University(English Edition) 2010年第1期14卷 50-54页

作者：严涛安平沈礼权李振纲王贺张兆杨 School of Communication and Information Engineering Shanghai University Key Laboratory of Advanced Displays and System Application

Current multi-view video coding （MVC） reference model in joint video team （JVT） does not provide efficient rate control schemes. This paper presents a rate control algorithm for MVC by improving the quadratic rate-distortion （R-D） model. We reasonably allocate bit-rate among views based on the correlation analysisl The proposed algorithm consists of three levels to control the rate bits more accurately, of which the frame layer allocates bits according to the frame complexity and the temporal activity. Extensive experiments show that the proposed algorithm can control the bit rate efficiently.

关键词： multi-view video coding （MVC） rate control bit-allocation rate-distortion model correlation analysis frame complexity

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A 2.4GHz high efficient monolithic class E power amplifier

A 2.4GHz high efficient monolithic class E power amplifier

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Asia Pacific Conference on Postgraduate Research in Microelectronics & Electronics (PrimeAsia)

作者： Su, Jie Zhang, Shulin Chen, Lei Tian, Liang Zhou, Jin Ruan, Ying Ran, Feng Lai, Zongsheng Institute of Microelectronics Circuit and System East China Normal University Shanghai 20062 China Key Laboratory of Advanced Display and System Application ShangHai University Shanghai 20062 China

ISBN: (纸本)9781424467372

This paper presents a 2.4GHz monolithic Class E power amplifier based on Grace 0.18um SiGe BiCMOS technology. It has a two-stage structure and adopts small DC feed inductors and on-chip matching networks. Without any off-chip components, the power amplifier achieves maximum output power of 22.4dBm. and the PAE is 33% with 2V supply. After optimizing the component parameter, the input and output terminals are both well matched to baseband and antenna respectively. With EER or ET technology this switch-mode amplifier can realize linear amplification, resulting in impressive high efficient in future communication system.

关键词： Power amplifiers

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Unequal decoding power allocation for efficient video transmission

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Journal of Shanghai University(English Edition) 2010年第1期14卷 60-65页

作者：王永芳余松煜杨小康张兆杨 Key Laboratory of Advanced Display and System Application School of Communication and Information Engineering Shanghai University Institute of Image Communication and Information Processing Research Shanghai Jiao Tong University

We present an unequal decoding power allocation （UDPA） approach for minimization of the receiver power consumption subject to a given quality of service （QoS）, by exploiting data partitioning and turbo decoding. We assign unequal decoding power of forward error correction （FEC） to data partitions with different priority by jointly considering the source coding, channel coding and receiver power consumption. The proposed scheme is applied to H.264 video over additive white Gaussion noise （AWGN） channel, and achieves excellent tradeoff between video delivery quality and power consumption, and yields significant power saving compared with the conventional equal decoding power allocation （EDPA） approach in wireless video transmission.

关键词： power allocation turbo code data partition joint source and channel code

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New Permeation Rate Measurement for Thin Film Encapsulation of Organic Light Emitting Diodes

New Permeation Rate Measurement for Thin Film Encapsulation ...

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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： Hao zhang Jianhua Zhang Bin Wei Minyan Zhang Li Long Renzheng Sang Tao Feng School of Mechanical & Electronic Engineering and Automation Shanghai University Shanghai 200072 Key Laboratory of Advanced Display and System Applications Ministry of Education Shanghai Universi School of Mechanical & Electronic Engineering and Automation Shanghai University Shanghai 200072 The Linde Group Carl-von-Linde-Strasse 2585716 Unterchleissheim Germany

We have developed a new method to measure the water vapor transmission ratio (WVTR) for thin film encapsulation (TFE) of organic light emitting diodes (OLEDs). It is a nondestructive method to measure WVTR by investigating the change of photoluminescent spectra of organic material. This method can be realized easily by online test. By calibrating the evolution curve (the photoluminescent intensity versus time), we have figured out the relative water transmission which was responded by organic materials. The WVTR of TFE devices is estimated to be about 2.0×10-2gm-2day-1 in a controlled environment of 85% relative humidity (RH) at 38℃. Novel thin film encapsulation devices have also been presented.

关键词： Organic light emitting diodes Encapsulation Films Organic materials Chemical vapor deposition Substrates Equations

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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, ICALIP 2010

作者： Fu, Ying Wang, Yongfang Zhang, Zhaoyang 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. ©2010 IEEE.

关键词： Bandpass filters

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A new scheme of layered coding of stereoscopic video

A new scheme of layered coding of stereoscopic video

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2010 International Conference on Audio, Language and Image Processing, ICALIP 2010

作者： Liao, Xiaotong Ma, Ran An, Ping Zhang, Zhaoyang 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

A new scheme of layered coding of stereoscopic video based on the correlation of motion vector fields (MV fields) is proposed in this paper, in which the bit streams robustness is improved to error channel and the coding efficiency is not reduced evidently. In our proposed scheme, the stereoscopic video is classified into one base layer and two enhancement layers. First, left-view video is encoded as Base Layer to ensure the basic quality of two-dimensional video. Then, the disparity vectors(DVs) of right-view video are encoded as Enhancement Layer *** lower bit rates further and reduce the network load, the strong correlation of the motion vectors(MVs) for two views video sequence are tested. Based on the correlation of MVs between views, the MVs of right-view are transmitted as Enhancement Layer 2 only if the correlation between left and right view is less than some threshold. Experimental results are demonstrated to testify the efficiency of our proposed scheme. ©2010 IEEE.

关键词： Efficiency

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Low-voltage and high-stability p-type doped blue organic light-emitting diodes with bilayer hole injection layers

Low-voltage and high-stability p-type doped blue organic lig...

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2010 8th International Vacuum Electron Sources Conference and NANOcarbon(第八届真空电子源和纳米碳国际会议)

作者： F.F.Yu H.Zhang J.N.Yu L.Long L.Lu J.H.Zhang B.Wei Key Laboratory of Advanced Display and System Application Ministry of EducationShanghai University Key Laboratory of Advanced Display and System Application Ministry of Education Shanghai Universit

@@In recent years, organic light-emitting diodes (OLEDs) for the application of flat panel displays (FPDs) have been attracting many researchers. Blue OLEDs are the potential light source to make full color FPDs by color conversion method. However, due to a large energy bandgap of blue emission materials, blue OLEDs were widely reported to have relatively low luminance efficiencies and high operation voltage, compared to the devices with low energy emission wavelength.

关键词： Indium tin oxide

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Compressed sensing based channel estimation for fast fading OFDM systems

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Journal of systems Engineering and Electronics 2010年第4期21卷 550-556页

作者： Xiaoping Zhou Yong Fang Min Wang Key Laboratory of Specialty Fiber Optics and Optical Access Networks School of Communication and Information Engineering Shanghai University Shanghai 200072 P. R. China Key Laboratory of Advanced Display and System Applications Shanghai 200072 P. R. China

A compressed sensing（CS） based channel estimation algorithm is proposed by using the delay-Doppler sparsity of the fast fading channel.A compressive basis expansion channel model with sparsity in both time and frequency domains is *** pilots in accordance with a novel random pilot matrix in both time and frequency domains are sent to measure the delay-Doppler sparsity *** relatively nonzero channel coefficients are tracked by random pilots at a sampling rate significantly below the Nyquist *** sparsity channels are estimated from a very limited number of channel measurements by the basis pursuit *** proposed algorithm can effectively improve the channel estimation performance when the number of pilot symbols is reduced with improvement of throughput efficiency.

关键词： compressed sensing sparse channel channel estimation fast fading.

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Recent Progress in The Studies of Low Melting Sn-Based Pb-Free Solders

Recent Progress in The Studies of Low Melting Sn-Based Pb-Fr...

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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： Yang Lin Luqiao Yin Xicheng Wei Key Laboratory of Advanced Display and System Applications Shanghai University Ministry of Educati School of Mechatronics and Automation Shanghai University P.O.B.143 149 Yanchang Rd. Shanghai 20 School of Mechatronics and Automation Shanghai University P.O.B.143 149 Yanchang Rd. Shanghai 20

Limited by the toxicity of Pb and Pb-containing compounds and the implementation of the mandatory legislations, such as WEEE and RoHS, the Pb-containing solders have been banned and accordingly the Pb-free solders have become popular in electronic industry. However, the novel developed Pb-free solders could cause a series of packaging defects such as delamination, cracking, and charring etc. due to the relatively high melting temperatures of these Pb-free substitutes compared to the former Sn-Pb

关键词： Nanoparticles Compounds Lead Packaging Gallium

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Dynamic color temperature white lighting source based on red green and blue light emitting diode

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Guangxue Xuebao/Acta Optica Sinica 2011年第5期31卷

作者： Yin, Luqiao Yang, Weiqiao Li, Shuzhi Cheng, Bei Zhang, Jianhua School of Mechanical Engineering and Automation Shanghai University Shanghai 200072 China Key Laboratory of Advanced Display and System Applications Shanghai University Shanghai 200072 China Shanghai Research Center of Engineering and Technology for Semiconductor Lighting Shanghai 201203 China

More and more attentions have been focused on the lighting source as it plays an important role to people's health. The light emitting efficiency of light emitting diode has been broken through year by year and now it has been surpassed that of the traditional lighting source. In order to improve the lighting quality by a lighting source with flexible color temperature, a data base is created with different color temperature by mixing different proportion luminous flux of red, green and blue light emitting diode based on theoretical calculations. The data base is embedded into the control program and it can run different proportion to realize light source variation with color temperature at different time. The experimental results show that the lighting source can realize correlated color temperature from 2300-7000 K, real color temperature is in accordance with that of theoretical calculation. Thus a sunlight-style lighting device is realized fundamentally.

关键词： Light emitting diodes

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