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Multi-view Video Coding Based on Sequence Correlation

Multi-view Video Coding Based on Sequence Correlation

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： Feng Lu Ping An Zhaoyang Zhang Liquan Shen School of Communication and Information Engineering Shanghai University Shanghai 200072 China Key Laboratory of Advanced Displays and System Application Ministry of Education Shanghai 200072 China

ISBN: (纸本)9781424458561

Traditional coding method used the same prediction structure to encode the multi-view sequences whose correlation are distinctly different. This method eliminated the temporal and spatial redundancy by using multi-references blindly. Although the traditional prediction structures have quite good coding efficiency, it results in the problem of high complexity. So by analyzing the characteristic of the multiview video data itself, we designed a correlation testing structure and depending on the correlation intensity on both the temporal and spatial direction, a method of multiple prediction structures coding jointly is proposed. Experimental results show that the proposed method can reduce the coding complexity while maintaining high coding efficiency, and to the sequences whose spatial correlation is quite strong, the method given can not only raise the PSNR, but reduce the bitrate as well.

关键词： Correlation Encoding Video sequences Complexity theory Redundancy Cameras PSNR

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Genetic algorithm optimization in TFT-LCD drive system

Genetic algorithm optimization in TFT-LCD drive system

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International Conference on (ICEPT) Electronic Packaging Technology

作者： Zhi-Jie Tang Ran Feng Mei-Hua Xu Key Laboratory of Advanced Displays and System Application Ministry of Education Shanghai University Shanghai China Microelectronic Research & Development Center Shanghai University Shanghai China

This paper describes a novel TFT-LCD drive method for high gray scale display based on Genetic Algorithm optimization. The method can optimize scanning drive topology structure and improve the efficiency of scanning. This method uses the traditional DAC to drive the low-bit gray scale while the high-bit gray scale is generated by applying the new topology structure. This method is applied to a 1280*1024 dots RGB TFT-LCD panel which can display 256-level gray scale with 6-bit DAC source driver.

关键词： Gray-scale Optimization Genetic algorithms Thin film transistors Hafnium Driver circuits Integrated circuits

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Interactive object segmentation using iterative adjustable graph cut

Interactive object segmentation using iterative adjustable g...

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IEEE Visual Communications and Image Processing (VCIP)

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

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.

关键词： Object segmentation Image segmentation Reliability Iterative methods Educational institutions Image color analysis Error analysis

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Time-sequential color code division multiplexing holographic display with metasurface

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Opto-Electronic Advances 2023年第8期6卷 8-16页

作者： Xin Li Qinmiao Chen Xue Zhang Ruizhe Zhao Shumin Xiao Yongtian Wang Lingling Huang Beijing Engineering Research Center of Mixed Reality and Advanced Display School of Optics and PhotonicsBeijing Institute of TechnologyBeijing 100081China MoE Key Laboratory of Photoelectronic Imaging Technology and System and MIIT Key Laboratory of Photonics Information TechnologySchool of Optics and PhotonicsBeijing Institute of TechnologyBeijing 100081China State Key Laboratory on Tunable Laser Technology Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information SystemHarbin Institute of Technology(Shenzhen)Shenzhen 518055China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150080China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China

Color metasurface holograms are powerful and versatile platforms for modulating the amplitude,phase,polarization,and other properties of light at multiple operating ***,the current color metasurface holography can only realize static *** this study,we propose and demonstrate a multiplexing metasurface technique combined with multiwavelength code-division multiplexing(CDM)to realize dynamic *** code references are utilized to record information within a single metasurface and increase the information capacity and security for anticracks.A total of 48 monochrome images consisting of pure color characters and multilevel color video frames were reconstructed in dual polarization channels of the birefringent metasurface to exhibit high information density,and a video was displayed via sequential illumination of the corresponding code patterns to verify the ability of dynamic *** approach demonstrates significant application potential in optical data storage,optical encryption,multiwavelengthversatile diffractive optical elements,and stimulated emission depletion microscopy.

关键词： metasurface color holography dynamic display code division multiplexing

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Image Mosaic Based View Synthesis for Interactive Stereoscopic display

Image Mosaic Based View Synthesis for Interactive Stereoscop...

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2007亚洲显示国际会议

作者： Giuyan Guo Key Laboratory of Advanced Displays and System Application Ministry of EducationShanghai 200072China School of Communication and Information EngineeringShanghai UniversityShanghai 200072China

In stereoscopic display,view synthesis is a key technology to realize interactivity what is the ability to look around with- in a three dimensional(3D)scene by freely choosing a *** paper presents an intermediate view synthesis al- gorithm,combining view interpolation with view morphing based on image ***,the original stereo image pairs are ***,the disparity of only object area is estimated by a predict recursion method to improve the matching speed and ***,credible areas in left and right views should be determined and chosen to create a transi- tional *** last,a method combining view interpolation and morphing is used to synthesis the intermediate view from the transitional *** results show that the edge of created intermediate view object is clear and smooth,and the processing speed of view synthesis is obviously *** algorithm can be used in interactive stereoscopic dis- play in varius 3D video application which an arbitrary view needs to be rendered in real-time.

关键词： View Synthesis View Morphing Image Mosaic Transitional View

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Architecture research and IC design for embedded ultra-micro processor

Architecture research and IC design for embedded ultra-micro...

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International Symposium on High Density Packaging and Microsystem Integration 2007, HDP'07

作者： Chen, Zhang-Jin Jin, Zhe-Ming Xu, Mei-Hua Ran, Feng Computer Center Shanghai University 149 Yanchang Rd. Shanghai 200072 China Microelectronic Research and Development Center Shanghai University 149 Yanchang Rd. Shanghai 200072 China Key Laboratory of Advanced Displays and System Application Ministry of Education Shanghai University 149 Yanchang Rd. Shanghai 200072 China

ISBN: (纸本)1424412536

In an embedded system design, the mere serial function of a processor is generally used to improve its correctness and decrease the design period without making use of the entire functions of the processor. To reduce the area and the loss of cost-effectiveness brought about by the general processor, a new embedded ultra-micro processor circuit is proposed. It lies between the simplex parallel logic and a general processor. The processor can be easily tailored or expanded according to the design goals and whereby the flexibility and cost performance of the entire system are achieved. © 2007 IEEE.

关键词： Embedded systems

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Optimizing design and FPGA implementation for CABAC decoder

Optimizing design and FPGA implementation for CABAC decoder

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International Symposium on High Density Packaging and Microsystem Integration 2007, HDP'07

作者： Xu, Mei-Hua Cheng, Yu-Lan Ran, Feng Chen, Zhang-Jin Key Laboratory of Advanced Displays and System Application Ministry of Education Shanghai University 149 Yanchang Rd. Shanghai 200072 China School of Mechatronical Engineering and Automation Shanghai University 149 Yanchang Rd. Shanghai 200072 China Microelectronic Research and Development Center Shanghai University Shanghai Shanghai 200072 China

ISBN: (纸本)1424412536

Based on the research of CABAC arithmetic and the decoding flow, the paper indicates the bottleneck in CABAC decoding process and presents a novel architecture of CABAC decoder which takes optimization design for main function modules. Detail design for its architecture and function modules is described in the paper. Simulation and FPGA verification are implemented, and the results show that the decoder can increase the decoding speed efficiently and meet the demand of real-time high level video communication. © 2007 IEEE.

关键词： Field programmable gate arrays (FPGA)

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A remote medical monitoring system based on GSM network

A remote medical monitoring system based on GSM network

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Institution of Engineering and Technology International Communication Conference on Wireless Mobile and Computing

作者： Meihua, Xu Yu, Fei Fangjie, Zhao Qian, Zhu Microelectronic Research and Development Center Shanghai University 149 Yanchang Rd. Shanghai China School of Mechatronical Engineering and Automation Shanghai University 149 Yanchang Rd. Shanghai China Key Laboratory of Advanced Displays and system Application Ministry of Education Shanghai University 149 Yanchang Rd. Shanghai China

ISBN: (纸本)9781849191388

This paper presents a remote medical monitoring system based on GSM (Global system for Mobile communications) network. It is a kind of family medical network system. Firstly, the system structure of the monitoring system is proposed, and then the design of each module is introduced. This system takes advantage of the powerful GSM network to implement remote communication in the form of short messages and uses FPGA as the control center to realize the family medical monitoring network.

关键词： Field programmable gate arrays (FPGA)

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Dynamical analysis of fractional-order financial system with delay 5

Dynamical analysis of fractional-order financial system with...

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5th International Workshop on advanced Computational Intelligence and Intelligent Informatics, IWACIII 2017

作者： Zhang, Zhe Liu, Feng Zhang, Jin Sun, Fenglan Ren, Jie School of Automation China University of Geosciences Wuhan430074 China Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Wuhan430074 China College of Electrical and Information Engineering Hunan University Hunan410082 China Research Center of System Theory and Application Chongqing University of Posts and Telecommunications Chongqing400065 China

This paper we investigates the problem of stability and bifurcation of fractional-order financial system time-delay via the Lyapunov stability judgment method and application of impulse control method. Finally, a numerical simulation example is provided to verify the effectiveness and the benefit of the proposed stability and bifurcation criterion.

关键词： Bifurcation (mathematics)

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Bifurcation and stability analysis of a delayed fractional-order gene regulation networks with uncertain order 8

Bifurcation and stability analysis of a delayed fractional-o...

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8th International Symposium on Computational Intelligence and Industrial applications and 12th China-Japan International Workshop on Information Technology and Control applications, ISCIIA and ITCA 2018

作者： Liu, Feng Dong, Ting Sun, Fenglan Ling, Guang School of Automation China University of Geosciences Wuhan430074 China Hubei key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Wuhan430074 China Research Center of System Theory and Application Chongqing University of Posts and Telecommunications Chongqing400065 China School of Science Wuhan University of Technology Wuhan430070 China

Bifurcation and stability analysis for a fractional-order gene regulatory networks with time delay is researched. Firstly, taking time delay as the bifurcation parameter, the Hopf bifurcation and stability conditions are established. Finally, a numerical example verifies the theoretical conclusion. It is showed that time delay can heavily effect the dynamics of the system and each order has a major influence on the creation of bifurcation simultaneously. © ISCIIA and ITCA 2018 - 8th International Symposium on Computational Intelligence and Industrial applications and 12th China-Japan International Workshop on Information Technology and Control application.

关键词： Time delay

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