浙江大学 博士后研究工作报告

分类号TP391密级UDC编号浙江大学博士后研究工作报告交互式虚拟产品展示技术的研究陈田工作完成日期：2003年12月提交报告日期：2004年01月浙江大学（浙江）2004年01月中文题名交互式虚拟产品展示技术的研究英文题名ResearchonInteractiveVirtualPresentationanditsKeyTechniques博士后姓名陈田流动站（一级学科）名称计算机科学与技术专业（二级学科）名称计算机应用合作教授潘志庚研究工作起始时间2001年7月研究工作期满时间2003年12月提交报告日期2004年01月本文得到国家教委优秀青年教师教学科研奖励计划“基于因特网的虚拟现实和电子商务集成技术”(2001-2005)的资助。摘要I摘要本文主要研究交互式的虚拟产品展示及其关键技术。本科研工作的主要目的在于：基于如何应用VR技术，提供逼真、智能化的、具有可交互性的三维可视环境，更好地展示商品，以方便用户对商品进行选择、购买、评估、甚至根据自己的个人审美观念、个性化需求进行定制。所研究的内容主要集中在两个方面：一方面是结合VR与3D图形学技术，构建网上虚拟商城，应用智能Agent技术，根据用户的历次购物经历，并参考整个商城的购物情况为用户提供具有智能导购等功能的个性化服务的电子商务平台；另一方面是构建虚拟人参与的商品展示、评估与定制虚拟平台，即通过构建现实生活中实际商品的通常使用环境，特别是在该环境下通过用户行为驱动虚拟人操作虚拟产品，让用户直观地感受真实商品的使用境界，方便商品的选择、评估，同时系统支持用户根据自己的喜好对商品进行再设计、定制等。全文的主要内容如下：z提出并构建了基于VRML的虚拟电子商城EasyMall，分析了EasyMall开发中力求实现个性推荐服务和适宜的营销决策机制的实施策略；重点论述了如何应用数据挖掘与统计学的方法，在购物活动中，基于产品、客户的合理分群，通过产品域匹配和客户域匹配来实现智能导购服务；z开发了手机的定制系统，分析了各功能模块的组成及整个系统为用户提供的定制流程；通过选取三种手机、四种评估环境进行实验，结果说明应用VR评估虚拟产品的感性属性是可行的；z提出了虚拟产品的展示流程；重点分析了基于三维模型的由虚拟手操作的与基于图象的由用户手操作的两种不同的虚拟展示环境的构建方式、组成要素及其实施策略；z探讨了应用智能Agent技术实现商品的智能搜索与个性化推荐的实施方法；进一步讨论了在虚拟产品展示环境中如何应用虚拟Agent技术通过虚拟人动画以及用户手运动图像的捕捉以更自然、有效的方式展示产品。关键词商品展示虚拟产品交互式虚拟现实虚拟环境浙江大学博士后出站报告IIAbstractInthispaper,theinteractiveproductpresentationanditskeytechniquesarediscussed.Themainpurposeofourresearchworkistoprovidecustomerswithrealistic,intelligentandfriendlyinteractive3DenvironmentbyapplyingVRtechnique,inorderthatproductsarepresentedinabetterwayandcustomersareabletochoose,purchase,evaluate,andcustomizeproductsaccordingtotheirtasteandpersonalrequirements.Thispaperfocusesontwoparts.Thefirstpartistoestablishnetwork-basedvirtualshoppingmallthroughcombiningVRand3Dgraphicstechnologies,inwhichIntelligentAgent(IA)techniqueisadoptedforofferingcustomersanindividual-orientedserviceplatformwithintelligentguidethatisbasedonthepurchasehistoryofcustomers.Thesecondpartistobuildavirtualplatformwhichisbeneficialcustomerstoexhibit,evaluateandcustomizeproductswithvirtualhuman’shelp.Especially,bytheoperativebehaviorofthevirtualhumandrivenbycustomers,customersmayexamandexperiencethevirtualshoppingmalljustlikeintherealenvironment,andmayalsochooseandevaluateexhibitedproducts.Inthemeanwhile,customersmayredesignandre-customizetheirfavoriteproductswiththesupportofthesystem.•ProposeandestablishaVRML-basedvirtualelectronicshoppingmall,namedEasyMall.Also,thestrategyforrealizingindividualrecommendationserviceandpropermarketingmechanismisanalyzed.Furthermore,thispaperdiscusseshowtoclassifydifferentgroupsofcustomersbyusingdataminingandstatisticsmethodandbymatchingproductsdomainandcustomers’domain.•Developthecustomizationsystemformobilephone,andanalyzetheingredientofeachmoduleandthecustomizingflow.TheexperimentwiththreetypesofmobilephonesandfourkindsofenvironmentsshowsthatevaluatingtheKanseipropertiesofvirtualproductswhichareoperatedby3Dvirtualhandorimage-basedhandisfeasible.•Putforwardtheexhibitionflowforvirtualproduct.Mainlydiscussbuildingmethods,componentsandstrategyforthetwokindsofvirtualexhibitionenvironmentsrespectively;oneis3Dvirtualhandbased,anotherisuserhandimagebased.•ExploretherealizingmethodforintelligentlysearchingandindividualrecommendingproductsbyusingIAtechnique;Andfurtherdiscusshowtogetmorenaturalandeffectivewaysinexhibitingproductsbyeithervirtualhumananimationormotiontracking.KeyWordsProductPresentation,VirtualProduct,Interactive,VirtualReality,VirtualEnvironment.Abstracti目录摘要Abstract第一章绪论············································································································11.1虚拟产品及其相关的计算机技术·······································································11.1.1立体图像的显示原理················································································11.1.2输入装置····································································································31.1.3视觉输出····································································································31.1.4虚拟现实建模语言VRML·······································································41.2虚拟展示环境·······································································································51.2.1虚拟展示环境类型····················································································51.2.2虚拟智能Agent的研究现状····································································51.3本文主要研究内容及组织···················································································7第二章用于商品展示的网上虚拟商城的构建····················································82.1E-Commerce与VR的结合····················································································82.1.1消费者行为的影响因素············································································92.1.2运用电子商务进行产品展示····································································92.1.3虚拟现实与交互式的虚拟经历······························································102.1.4集成电子商务与虚拟现实······································································102.2产品展示方法的比较·························································································132.3网上虚拟商城的总体结构··········