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| 1 | Automatic Feature Point Detection and Tracking of Human Actions in Time-of-flight Videos显示文摘Detecting feature points on the human body in video frames is a key step for tracking human movements. There have been methods developed that leverage models of human pose and classification of pixels of the body image. Yet, occlusion and robustness are still open challenges. In this paper, we present an automatic, model-free feature point detection and action tracking method using a time-of-flight camera. Our method automatically detects feature points for movement abstraction. To overcome errors caused by miss-detection and occlusion, a refinement method is devised that uses the trajectory of the feature points to correct the erroneous detections. Experiments were conducted using videos acquired with a Microsoft Kinect camera and a publicly available video set and comparisons were conducted with the state-of-the-art methods. The results demonstrated that our proposed method delivered improved and reliable performance with an average accuracy in the range of 90 %.The trajectorybased refinement also demonstrated satisfactory effectiveness that recovers the detection with a success rate of 93.7 %. Our method processed a frame in an average time of 71.1 ms. | Xiaohui Yuan Longbo Kong Dengchao Feng Zhenchun Wei | 2017 | IEEE/CAA Journal of Automatica Sinica2017,4,4: | 8 |
| 2 | Common reflection surface stack using dip decomposition for rugged surface topography显示文摘我们在场为任意的最高的表面地形学提供支持的普通思考表面(CRS ) 栈的扩展。没有对任何举起静电干扰的需要,叠的 CRS 能被用于原来的 prestack 数据。叠 CRS 的零偏移量的节能被改正(redatumed ) 到由运动学的波浪的给定的平面水平,地归因。地震处理结果显示 CRS 叠了节因为崎岖表面地形学比对 S/N 比率和思考事件的更好的连续性的常规叠的节好。就零偏移量的光线的多重路径而言,方法处理来自不同剧降的思考信息并且用剧降分解的方法执行栈,它改进 CRS 的运动学、动态的字符叠的节。 | Sun Xiaodong Li Zhenchun Teng Houhua | 2007 | Applied Geophysics2007,4,1: | 6 |
| 3 | EXPERIMENTAL STUDY ON OPEN-DIE COLD EXTRUSION FORMING TECHNIQUE FOR INVOLUTESPLINE SHAFTS显示文摘EXPERIMENTALSTUDYONOPEN-DIECOLDEXTRUSIONFORMINGTECHNIQUEFORINVOLUTESPLINESHAFTSEXPERIMENTALSTUDYONOPEN-DIECOLDEXTRUSIONFORMIN... | Zhang Zhenchun Li Jun Zhou Lihua Men Liantong ( Tianjin University) | 1996 | Chinese Journal of Mechanical Engineering1996,9,1: | 5 |
| 4 | Beamlet prestack depth migration and illumination: A test based on the Marmousi model显示文摘Beamlet 来源容易让强壮的本地、方向性的人物和罐头完成本地照明和移植。而且,他们比常规迁居方法提供更好的迁居结果。我们介绍让的横梁的基本原则包括窗口的 Fourier 变换和框架理论的 prestack 深度移植。我们基于 Gaussian 功能解释 Gabor-Daubechies (G-D ) 框架。Beamlet 分解在波浪地的本地空格和方向提供信息。我们综合横梁让来源和横梁在使用矩形和 Gaussian 窗口的小浪域让记录然后外推有一个 Fourier 有限差别的操作符的综合数据。我们用标准 Marmousi 模型测试方法。由比较并且分析让并且微笑的方向性的横梁与不同窗户和方向让的单身者的迁居结果,我们证明有 Gaussian 横梁的 prestack 深度迁居的有效性让方法。 | Ye Yueming Li Zhenchun Han Wengong Liu Qingmin | 2006 | Applied Geophysics2006,3,4: | 5 |
| 5 | Reverse Time Migration with Elastodynamic Gaussian Beams显示文摘Elastic migration has been widely paid attention by employing the vector processing of multicomponent seismic data.Ray based elastic Kirchhoff migration has such properties as high flexibility and high efficiency.However,it has failed to solve many problems caused by multipath.On the other hand,elastic reverse-time migration(RTM)based on the two-way wave equation is known to be capable of dealing with these problems,but it is extremely expensive when applied in 3D cases and velocity model building.Based on the elastic Kirchhoff-Helmholtz integral,we calculate decoupled backward-continued wavefields by introducing elastic Green functions for P-and S-waves,which is expressed by a summation of elastodynamic Gaussian beams.The PP and polarity-corrected PS images are obtained by calculating the correlation between downward and decoupled backward-continued vector wavefields,where polarity correction is performed by analyzing the relation between the polarization direction of converted PS waves and incident angle on the interface.To a large extent,our method combines the high efficiency of ray-based migration with the high accuracy of wave-equation based reverse-time migration.Application of this method to multicomponent synthetic datasets from the fault model and Marmousi 2 model demonstrates the validity,flexibility and accuracy of the new method. | Jianping Huang Maolin Yuan Qing Zhang Lingxiao Jia Zhenchun Li Jiguang Li Shengtian Zhao | 2017 | Journal of Earth Science2017,28,4: | 4 |
| 6 | The design of automatic loading-and-unloading material manipulator for telescopic punch显示文摘To reduce the amount of labor in the sheet metal stamping industry, improve the processing efficiency and safety factor and realize the automatic production of stamping, this paper designs a new type of overall plan about automatic loading and unloading material manipulator for telescopic punch which can realize the telescopic movements with two degrees. The mechanical structure of the manipulator includes a lifting device and a telescopic device. Using PLC control program, the control system can automatically achieve continuous beat actions of drawing and stacking for the processing raw materials. According to the mechanical structure, the paper analyzes the working principle and control strategy of each component in the loading-and-unloading material manipulator systems. | Luo Lei Wei Zhenchun Jin Aimin Wang Jinbo Zhang Li | 2016 | Computer Aided Drafting,Design and Manufacturing2016,26,2: | 3 |
| 7 | Analysis for dy- namics performance indices of 4 - RR (RR) R parallel mechanism显示文摘 | Guo Xijuan Liu Shuang Wang Zhenchun | 2006 | International Journal of Innovative Compu- ting Information and control2006,2,4: | 1 |
| 8 | Anlysis for Dynamics Performance Indices of 4--RR(RR)R Parallel Mechanism显示文摘 | Guo Xijuan Liu Shuang Wang Zhenchun | 2006 | International Journal of In- novative Computing Information and Control2006,2,4: | 1 |
| 9 | Division-based rainfall-runoff simulations with BP neural networks and Xinanjiang models 显示文摘 | Ju Qin Yu Zhongbo Hao Zhenchun | 2009 | Neurocomputing2009,72,: | 1 |
| 10 | Impact of air staging along furnace height on NOx emissions from pulverized coal combustion显示文摘 | Fan Weidong Lin Zhenchun Kuang Jinguo | 2010 | Fuel Processing Technology2010,91,6: | 1 |
| 11 | Impact offuture climate change on runoff in the head region of theYellow River显示文摘 | LI Li HAO Zhenchun WANG Jiahu | 2008 | J Hydrologic Engrg2008,13,: | 1 |
| 12 | Building data infrastructure for geo-computation by spatial information grid显示文摘 | ZhenChun Huang : GuoQing Li Yi Zeng | 2007 | The sixth International Conference on Grid and Cooperative Computing2007,,: | 1 |
| 13 | Study on rainfall-runoff simulation based on artificial neural networks显示文摘 | Ju Qin Hao Zhenchun Yu Zhongbo | 2007 | Joumal of Liaoning Technical University:Natural Science2007,26,6: | 1 |
| 14 | Effect of Air-Staging on Anthracite Combustion and NOx Formation 显示文摘 | FAN Weidong LIN Zhenchun LI Youyi | 2009 | Energy & Fuels2009,23,1: | 1 |
| 15 | Division - based rainfall - runoff simulations with BP neural networks and Xinanjiang model 显示文摘 | JU Qin YU Zhongbo HAO Zhenchun | 2009 | Neural computing2009,72,: | 1 |
| 16 | Division - based Rainfall- runoff Simulations with BP Neural Net -works and Xingjiang Model显示文摘 | Ju Qin Yu Zhongdo Hao Zhenchun | 2009 | Neurocomputing2009,,72: | 1 |
| 17 | Effects of Vegetation Cover on Hydrological Processes in a Large Region: Huaihe River Basin, China显示文摘 | Chuanguo Yang Zhongbo Yu Zhenchun Hao Zhaohui Lin Huimin Wang | 2013 | Journal of Hydrologic Engineering2013,,11: | 1 |
| 18 | Regional frequency analysis and spatial-temporal pattern characterization of rainfall ex- tremes in the Pearl river basin, China 显示文摘 | Tao YANG Quanxi SHAO Zhenchun HAO | 2010 | Journal of Hydrology2010,380,34: | 1 |
| 19 | Division-based rainfall-runoff simulations with BP neural networks and Xinanjiang model显示文摘 | Qin Ju Zhongbo Yu Zhenchun Hao Gengxin Ou Jian Zhao Dedong Liu | 2009 | Neurocomputing2009,,13: | 1 |
| 20 | An experimental study on variable air volume operation of ductedair-conditioning with digital scroll compressor and conventionalscroll compressor 显示文摘 | Huang Hu Li Qihe Yuan Dongxue Qin Zhenchun Zhang Zhongbin | 2008 | Applied Thermal Engineering2008,28,7: | 1 |