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1.
随着我国动漫事业的发展,三维动漫制作已经成为电视动漫的新宠,市场对三维动漫制作技术的要求也越来越高。本文主要结合当前三维动漫制作的现状,对三维动漫制作和虚拟现实技术的结合、尤其是三维动漫的制作技术和VR技术与3D技术的结合进行了探讨,以期对3D动漫技术的提高有所帮助。  相似文献   

2.
本文在阐述三维人机交互技术的概念和三维几何变换、坐标变换及三维观察的虚拟三维实体操纵图形学原理基础上,分析了虚拟培训系统中三维物体选择和操纵技术、漫游技术,设计并实现了燃气热水锅炉虚拟培训演练交互系统.  相似文献   

3.
在现代社会中,激光扫描是一门新兴的技术,它的主要功能是进行测绘和测量,三维激光扫描技术的产生使得激光扫描技术的发展出现了重大突破.三维激光的扫描技术能够把现实中的各种场景复制成三维的场景,而且还能在很短的时间里高效、精确地展现建筑物三维空间的具体情况和位置,其应用范围非常广泛.本文介绍了三维激光技术的特点,并着重探讨了三维激光扫描技术在数字化矿山中应用的技术依据和发展前景.  相似文献   

4.
敦煌莫高窟石窟三维数字化技术研究   总被引:5,自引:0,他引:5  
刘刚  张俊  刁常宇 《家教指南》2005,(4):104-109
近年来,计算机虚拟现实技术得到了快速的发展,并日趋成熟.各种三维扫描技术的诞生和应用,加之个人计算机在速度和性能上不断突破,大容量存储技术得以广泛的应用,大大促进了文物信息数字化的研究和应用.文物的三维数字化包括:三维信息获取、三维建模和纹理绑定等.目前适用的石窟文物三维数字化技术概括起来有:数字摄影测量、结构光获取和三维激光扫描等3大类.本文结合近期所作的敦煌莫高窟石窟三维数字化工作实践,简述石窟三维数字化技术方法和应用.  相似文献   

5.
三维可视技术是地理信息系统发展的一个新方向,文章介绍了三维可视化技术在城市景观规划领域的应用前景,并以福州滨江三维景观规划为例,讨论了三维可视化城市景观规划的应用过程.  相似文献   

6.
对三维模型水印技术的研究现状及评价标准进行了系统阐述。首先阐述了三维模型的特点、数字水印的嵌入和提取过程,然后详细分析了三维模型水印技术的研究现状、空间域和变换域两大类水印方法的发展以及三维模型水印技术的评价标准。最后,对三维模型水印技术的研究现状和未来发展方向进行了总结和展望。  相似文献   

7.
三维地形可视化仿真技术是虚拟现实的重要手段之一,主要研究真实感三维地形建模和三维地形可视化的实时绘制.本文对光照模型、纹理映射技术、阴影、场景的特效生成、实时消隐技术、层次细节简化技术等三维地形可视化仿真关键技术进行了分析.  相似文献   

8.
回顾三维运动捕捉技术的历史和原理,同时结合三维运动捕捉技术的要求,提供建立合理、经济的三维运动捕捉实验室的基本构成.  相似文献   

9.
非接触式三维人体扫描技术的综述   总被引:1,自引:0,他引:1  
回顾了非接触式三维人体扫描技术的发展,重点阐述五种典型的三维人体扫描技术的工作原理及现有品牌三维人体测量仪的基本结构,并提出三维扫描技术需要解决的若干问题,为三维人体测量研究者及客户选型提供可靠的系统依据。  相似文献   

10.
根据高等职业技术教育的特点,结合高等职业技术教育的专业目标岗位操作性特征,提出职业技术教育内容体系的三维模型,三维分别是职业技术教育目标岗位定位的层次,职业技术教育的专业操作性和职业技术教育的课程结构,并对三维模型的特点和存在的问题进行了探讨。  相似文献   

11.
INTRODUCTION The visualization of roadside buildings in virtual space using synthetic photorealistic view is one of the common methods for representing the background scene of Car Navigation Systems (CNS) and Internet map services. Since most of these background scenes are implemented by two-dimensional (2D) images, they may give somewhat monotonous impression due to fixed viewpoint position and orientation. For more interactive visualizations that enable arbitrary ad- justment of the …  相似文献   

12.
基于IMAGIS的校园房产三维可视化应用研究   总被引:1,自引:0,他引:1  
运用GIS三维可视化软件IMAGIS的三维建模功能,以校园的二维数字线划图为基础,进行校园房产建筑物三维模型的构建,通过模型的生成、纹理映射及3DGIS虚拟漫游,实现校园房产的三维可视化.  相似文献   

13.
在分析国内外任意三维曲面激光打标现状的基础上,通过介绍基于三维激光振镜系统自动变焦原理和面向三维激光打标加工的三维纹理数学模型的生成过程,研究了产品三维stl面展开的纹理映射算法,实现了产品三维曲面无尺寸变形和形状扭曲的激光打标方法。  相似文献   

14.
Three-dimensional (3D) or volumetric visualization is a useful resource for learning about the anatomy of the human brain. However, the effectiveness of 3D spatial visualization has not yet been assessed systematically. This report analyzes whether 3D volumetric visualization helps learners to identify and locate subcortical structures more precisely than classical cross-sectional images based on a two dimensional (2D) approach. Eighty participants were assigned to each experimental condition: 2D cross-sectional visualization vs. 3D volumetric visualization. Both groups were matched for age, gender, visual-spatial ability, and previous knowledge of neuroanatomy. Accuracy in identifying brain structures, execution time, and level of confidence in the response were taken as outcome measures. Moreover, interactive effects between the experimental conditions (2D vs. 3D) and factors such as level of competence (novice vs. expert), image modality (morphological and functional), and difficulty of the structures were analyzed. The percentage of correct answers (hit rate) and level of confidence in responses were significantly higher in the 3D visualization condition than in the 2D. In addition, the response time was significantly lower for the 3D visualization condition in comparison with the 2D. The interaction between the experimental condition (2D vs. 3D) and difficulty was significant, and the 3D condition facilitated the location of difficult images more than the 2D condition. 3D volumetric visualization helps to identify brain structures such as the hippocampus and amygdala, more accurately and rapidly than conventional 2D visualization. This paper discusses the implications of these results with regards to the learning process involved in neuroimaging interpretation.  相似文献   

15.
工业工程实验室经济型VR/3D改造方案探究   总被引:1,自引:0,他引:1  
将虚拟现实中的三维立体视觉总结归纳为色分法、振分法、时分法、空分法及真三维,分析了其各自内涵及设备特点.在此基础上,提出了工业工程实验室的经济型VR-3D改造方案,具体包括“三维信息获取”、“三维信息处理”、“三维信息发布”与“三维信息接收”4个环节,对各个环节的软硬件进行选型,并对系统的工作流程进行了全面的描述.整个系统改造方案具有高质量、低成本、易实现及可扩充的优点.  相似文献   

16.
Three‐dimensional (3D) digital animations were used to teach the human musculoskeletal system to first year kinesiology students. The purpose of this study was to assess the effectiveness of this method by comparing two groups from two different academic years during two of their official required anatomy examinations (trunk and upper limb assessments). During the upper limb section, the teacher used two‐dimensional (2D) drawings embedded into PowerPoint® slides and 3D digital animations for the first group (2D group) and the second (3D group), respectively. The same 3D digital animations were used for both groups during the trunk section. The only difference between the two was the multimedia used to present the information during the upper limb section. The 2D group surprisingly outperformed the 3D group on the trunk assessment. On the upper limb assessment no difference in the scores on the overall anatomy examination was found. However, the 3D group outperformed the 2D group in questions requiring spatial ability. Data supported that 3D digital animations were effective instructional multimedia material tools in teaching human anatomy especially in recalling anatomical knowledge requiring spatial ability. The importance of evaluating the effectiveness of a new instructional material outside laboratory environment (e.g., after a complete semester and on official examinations) was discussed. Anat Sci Educ 7: 430–437. © 2014 American Association of Anatomists.  相似文献   

17.
Results of a study designed to determine the effectiveness of implementing three-dimensional (3D) stereo images of a human skull in an undergraduate human anatomy online laboratory were gathered and analysed. Mental model theory and its applications to 3D relationships are discussed along with the research results. Quantitative results on 62 pairs were analysed using a doubly-multivariate analysis of variance repeated measures design. Results revealed statistically significant differences in group means for the main effect of treatment groups 2D and 3D and for the variables of Identification and Relationship with the 3D group outperforming the 2D group on both dependent variables.  相似文献   

18.
应用Web3D引擎开发的计算机仿真系统或虚拟现实系统均需在Web浏览器上运行,需要其能快速下载和运行,并且尽量不需下载特定插件。采用基于JAVA技术的开源Web3D引擎开发的三维系统可以满足上述要求,开发的展示系统可以实现三维图形的旋转、缩放等交互功能。此外,在系统开发过程中对引擎中不完善的部分进行了必要的修正。  相似文献   

19.
Web3D技术的教学应用研究   总被引:14,自引:0,他引:14  
该文主要研究了Web3D技术的基本概念、Web3D技术的实现方法、典型的Web3D技术及Web3D技术在教育教学领域的实际应用,并以实际案例对Web3D技术的教学应用进行了验证性研究。可以预见,在将来的网络教学资源设计和开发研究应用中,Web3D技术一定会具有强大的应用潜力。  相似文献   

20.
高深 《教育教学论坛》2020,(10):176-177
目前国内的三维动画课程教学均以软件操作学习为主,过于重视三维技术的学习,忽略了对学生创造性思维的培养。所以,动画专业的课程教学需要进行有针对性的改革,并培养学生的艺术素养、激发学生的自我思考能力和三维图形思维拓展能力。文章通过对三维图形思维拓展概念的解读和三维课程课堂教学改革的初步探索,创造了三维图形思维拓展教学改革"三步走"的方法,分析了基于三维图形思维拓展的实践过程和效果,从而奠定了课堂改革的基础,确定了三维动画教学改革的方向。  相似文献   

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