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| 1 | Color 3D Reverse Engineering显示文摘This paper presents a principle and a method of col or 3D laser scanning measurement. Based on the fundamental monochrome 3D measureme nt study, color information capture, color texture mapping, coordinate computati on and other techniques are performed to achieve color 3D measurement. The syste m is designed and composed of a line laser light emitter, one color CCD camera, a motor-driven rotary filter, a circuit card and a computer. Two steps in captu ring object’s images in the measurement process: First, the color CCD camera ta kes the color picture of the object to be used for texture mapping in post proce ssing. Secondly, the monochrome data of the object is taken. The laser light emi tter is started; the light plane and the surface of the object intersect to form an undulate line, which forms an image on the CCD sensor. After the optic- electronics transformation, the electronic signals are captured and send to the computer. A new color 3D measurement model was derived, and a rapid calibra ting method to measure the system parameters was proposed--optical plane equat ion calibrating method. A calibrating drone was designed and built. 3D color sca nning system not only provides an object’s individual point information in the 3D coordinate, in the mean time, it provides the color information of each indiv idual point. This paper also advances a multi-frame auto-merging method, i.e. several frames of color 3D digital images measured are merged quickly according to their curvature characteristics and RGB information. Initial matching and fin e tune of the registration are completely performed by the computer; initial mat ching is via user interface in helping computer to find the transformation matri x. The transformation matrix is found according to the geometric characteristics chosen by hand. After the initial transformation matrix is found, fine tune of the registration is preformed to do the optimum adjustment to achieve a complete color textured 3D model. The system can be broadly used in the fields of produc t design, mold manufacture, multimedia, game development, animation, medical eng ineering, antique digitization, etc. | XU Zhi-qin 1, YE Sheng-hua 1, FAN Guang-zhao 2 (1. School of Precision Instrument and Opto-electronics Engineering, N ational Key Lab of Measurement Technology and Instrument, EMC, Tianjin University, Tianjin, China 2. Department of Mechanical Engineering, National Taiwan University, Taiwan, Chi na) | 2002 | 厦门大学学报(自然科学版)2002,41,S1: | 3 |
| 2 | 猪圆环病毒2型病毒样颗粒的制备及其在疫苗研制中的应用显示文摘猪圆环病毒2型(PCV2)是引起猪圆环病毒相关疾病(PCVAD)的主要病原体。病毒衣壳唯一的结构蛋白Cap是PCV2亚单位疫苗的主要靶点。本研究旨在利用重组伪狂犬病病毒(PRV)gE基因缺失株来表达PCV2的Cap,该缺失株在PRV标记疫苗中被广泛使用。试验使用同源重组技术构建了重组PRV病毒株gE(-)/PCV2cap(+)PRV,其中PRV病毒株gE基因上游被PCV2的Cap基因替代。通过免疫荧光技术和Western blotting方法证实重组病毒复制过程中可表达Cap蛋白。电子显微镜结果显示,所表达的Cap蛋白能组装成病毒样颗粒(VLP)。用纯化的VLPs免疫小鼠和豚鼠可产生针对PCV2Cap的特异性免疫应答。这些结果提供了一种基于VLP构建PCV2亚单位疫苗的方法。 | Chi J N 谢冰 | 2014 | 中国畜牧兽医2014,41,6: | 3 |
| 3 | Antecedents and outcomes of employees'trust in Chinese joint ventures显示文摘 | WONG Y T HANG Y N CHI S W | 2003 | Asia Pacific Journal of Management2003,20,4: | 1 |
| 4 | Enhanced inulinase production in solid state fermentation by a mutant of the marine yeast Pichia guillierrnondii using surface response methodology and inulin hydrolysis 显示文摘 | Guo N Gong F Chi Z | 2009 | Microbiol Biotechnol2009,36,4: | 1 |
| 5 | Metal contamina-tion of vineyard soils in wet subtropics (Southern Brazil) 显示文摘 | MIRLEAN N ROISENBERG A CHIES J O | 2007 | Environmental Pollution2007,149,1: | 1 |
| 6 | Efficacy and safety of early dexmedetomidine during noninvasive ventilation for patients with acute respiratory failure: a randomized, double- blind, placebo-controlled pilot study显示文摘 | Devlin J W A1-Qadheeb N S Chi A | 2014 | Chest2014,145,6: | 1 |
| 7 | Comparison of heart failure in children with enterovirus 71 rhombencephalitis and cats with norepinephrine cardiotoxicity显示文摘 | FU Y C CHI C S LIN N N | | 0,,07: | 1 |
| 8 | Exploring the linkages between formal ownership and psychological ownership for the organization : The mediating role of organizational jus- tice 显示文摘 | Chi N W Han T S | 2008 | Journal of Occupational and Organizational Psychology2008,81,4: | 1 |
| 9 | Comparison of switching properties be- tween 10Gb/s RZ and NRZ signal format utilizing 4x 4 optical crosspoint switch matrix 显示文摘 | WANG Z R CHI N YU S Y | 2007 | Microwave And Optical Technology Letters2007,49,1: | 1 |
| 10 | The performance of iodine on the removal of elemental mercury from the simulated coal- fired flue gas 显示文摘 | Chi Y Yan N Q Qu Z | 2009 | Journal of Hazardous Materials2009,166,23: | 1 |
| 11 | Genetic and physiologic dissection of the vertebrate cardiac conduction system显示文摘 | Chi N C Shaw R M Jungblut B Huisken J Ferrer T Arnaout R | 2008 | PLoS Biol2008,6,: | 1 |
| 12 | Efficacy and safety of early dexmedetomidine during noninvasive ventilation for patients with acute respiratory failure: a randomized, double- blind, placebo-controlled pilot study显示文摘 | Devlin J W AI-Qadheeb N S Chi A | 2014 | Chest2014,145,6: | 1 |
| 13 | Relationship between lipid composi- tion, frequency of ethanol-induced respiratory deficient mutants, and ethanol tolerance in Saccharomyces cerevisiae 显示文摘 | Chi Z Arneborg N | 1999 | Journal of Applied Microbiology1999,86,6: | 1 |
| 14 | An oral controlled release system for ambroxol hydrochloride containing a wax and a water insoluble polymer显示文摘 | Chi N Guo JH Zhang Y | 2010 | Pharmaceutical development and technology2010,15,1: | 1 |
| 15 | Knock-down of the cytoprotective gene,clusterin,to enhance hormone and chemosensitivity in prostate and other cancers显示文摘 | GLEAVE M CHI K N | 2005 | Ann N Y Acad Sci2005,1058,: | 1 |
| 16 | Demonstration of 575- Mbit/s downlink and 225-Mbit/s upiink bi-directional SOM-WDM visible light communication using RGB LED and phosphor-based LED 显示文摘 | Wang Y Wang Y Chi N | 2013 | Optics Express2013,21,1: | 1 |
| 17 | Genomewide view of gene ailencing by small interfering RNAs显示文摘 | CHANG H Y WANG N N | 2003 | Proc Natl Aced Sci2003,100,11: | 1 |
| 18 | Application of frequency-domain blind deconvolution in mechanical fault detection显示文摘 | PAN N WU X CHI Y L | 2011 | Applied Mechanics and Materials2011,134,: | 1 |
| 19 | The neuron protective effects of phytoestrogens on amyloid beta protein induced toxicity are mediated by abrogating the activation of caspase cascade in rat cortical neurons显示文摘 | WANG C N CHI C W LIN Y L CHEN C F SHIAO Y J | 2001 | Journal of Biological Chemistry2001,276,7: | 1 |
| 20 | Human gait recognition based on matching of body components 显示文摘 | BOULGOURIS N V CHI Z X | 2006 | Pattern Recognition2006,40,6: | 1 |