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1.
微机立体动画研究及体视误差分析   总被引:2,自引:0,他引:2  
非交互式虚拟现实主要是在视觉上达到三维逼真视感,本文分析了时分隔式立体动画对计算机系统的要求以及当前在微机上实现的可能性,提出了一种利用3DS动画软件在微机上生成时分隔式立体动画片的方法,推导了这种立体显示方式的数学模型,并以此对其体视误差作了分析。  相似文献   

2.
应用软件的封面美观新颖已越来越重要,本文阐述了3DS概貌和立体动画制作的基本原理,结合一个实例说明了为应用软件制作立体动画封面的过程。  相似文献   

3.
本作是由高人气的动画《进击的巨人》改编而成的动作游戏,玩家将通过艾伦、三笠与阿尔敏视角去体验原作故事,游戏还原了动画中的立体机动装置与超硬质双刃等装备。  相似文献   

4.
本文论述了在编制机械设计多媒体CAI软件中利用3DS制作立体动画的方法,并介绍了笔者摸索得到的3DS应用技巧。  相似文献   

5.
特色与亮点
  本电子书最大化地实现了以学生为主体、教师为辅助的数字教学模式,提升了学生的学习兴趣,逐层降低了学习难度,最大化地提高了学习效率。书中集成了大量的视频、动画、图形,形象,直观地将平面知识以立体动画的形式呈现,很好地解决了本课的教学重难点。  相似文献   

6.
利用Android的Google相机软件和在线的图像处理服务,我们可以快速制作出一张围绕拍摄主题小范围移动的立体动画照片。下面CHIP将为大家介绍这种制作立体动画照片的方法.  相似文献   

7.
本文针对制作多媒体辅助教学软件中有关动画演示的问题进行了探讨,其中涉及到立体建模、材质处理、播放动画等一系列问题。  相似文献   

8.
本文论述了在编制机械设计多媒体CAI软件中利用3DS制作了立体动画的方法,并介绍笔者摸索得到的3DS应用技巧。  相似文献   

9.
本文研究点阵汉字的坐标化、立体化及其三维变换,提出了汉字立体动画旋转的方法,并在24×24的点阵汉字上给予实现。结果表明这一方法是实用可行的。  相似文献   

10.
为了增强影视作品的视觉效果,提升影视作品的整体品质,引入三维影像处理技术研究影视后期制作方法。文章首先基于计算得到的人眼视差结果,修正三维影像水平、垂直视差,其次确定摄像机间距,生成有效立体成像区域,最后利用三维影像处理技术,完成立体计算机动画(Computer Graphics,CG)渲染与立体优化,实现对三维立体画面的合成与制作优化。对比实验结果证明,设计的制作方法可以有效增强视频图像的视觉效果,提升影视后期制作作品品质。  相似文献   

11.
基于为高校三维动漫教学提供良好的教学技术和实验平台,研究了三维动漫制作与虚拟现实技术相结合的方法,采用三维计算机图形技术CG(Computer Graphics)、影像技术和运动捕捉系统,实现高质量高效率的三维动漫制作。介绍了将动漫技术、虚拟现实VR(Virtual Reality)设备和网络技术相整合的交互动漫虚拟环境建设方案。  相似文献   

12.
基于计算网格的图像三维重建系统的设计   总被引:1,自引:0,他引:1  
在计算机视觉处理领域中,三维重建是一种将二维图像恢复成三维信息的方法。目前,由于图像的三维重建过程涉及到大量的数据,重建速度较慢。为了提高三维重建的性能,构建了基于计算网格的图像三维重建系统。利用该系统提供的Web方式,用户可以实现作业提交、作业运行状态查询和图像三维重建服务部署的功能。最后,对所构建的计算网格三维重建系统进行了测试和分析。  相似文献   

13.
《Pattern recognition》1998,31(3):333-344
Three-dimensional (3D) motion estimation is a very important topic in machine vision. However, reliability of the estimated 3D motion seems to be the most challenging problem, especially to the linear algorithms developed for solving a general 3D motion problem (six degrees of freedom). In real applications such as the traffic surveillance and auto-vehicle systems, the observed 3D motion has only three degrees of freedom because of the ground plane constraint (GPC). In this paper, a new iterative method is proposed for solving the above problem. Our method has several advantages: (1) It can handle both the point and line features as its input image data. (2) It is very suitable for parallel processing. (3) Its cost function is so well-conditioned that the final 3D motion estimation is robust and insensitive to noise, which is proved by experiments. (4) It can handle the case of missing data to a certain degree. The above benefits make our method suitable for a real application. Experiments including simulated and real-world images show satisfactory results.  相似文献   

14.
The MagneBike inspection robot is a climbing robot equipped with magnetic wheels. The robot is designed to drive on three‐dimensional (3D) complexly shaped pipe structures; therefore it is necessary to provide 3D visualization tools for the user, who remotely controls the robot out of sight. The localization system is required to provide a 3D map of the unknown environment and the 3D location of the robot in the environment's map. The localization strategy proposed in this paper consists of combining 3D odometry with 3D scan registration. The odometry model is based on wheel encoders and a three‐axis accelerometer. Odometry enables the tracking of the robot trajectory between consecutive 3D scans and is used as a prior for the scan matching algorithm. The 3D scan registration facilitates the construction of a 3D map of the environment and refines the robot position computed with odometry. This paper describes in detail the implementation of the localization concept. It presents the lightweight, small‐sized 3D range finder that has been developed for the MagneBike. It also proposes an innovative 3D odometry model that estimates the local surface curvature to compensate for the absence of angular velocity inputs. The different tools are characterized in detail based on laboratory and field experiments. They show that the localization concepts reliably track the robot moving in the specific application environment. We also describe various techniques to optimize the 3D scanning process, which is time consuming, and to compensate for the identified limitations. These techniques are useful inputs for the future automatization of the robot's control and optimization of its localization process. © 2010 Wiley Periodicals, Inc.  相似文献   

15.
Along with the improvement of eye-tracking technology, more and more distinct field of researches have introduced movements of the eye in relation to the head to understand user behavior. Most of current researches focus on the perception process of single 2-dimensional images by fixed eye-tracking devices or the head-mount devices. A method of applying eye-tracking on the analysis of the interaction between users and objects in 3D navigational space is proposed in this article. It aims to understand the visual stimulation of 3D objects and the user’s spatial navigational reactions while receiving the stimulation, and proposes the concept of 3D object attention heat map. It also proposes to construct a computational visual attention model for different geometric featured 3D objects by applying the method of feature curves. The VR results of this study also provide future assistance in the incoming immersive world. This study sets to promote eye-tracking from the mainstream of 2D field to 3D spaces and points to a deeper understanding between human and artificial product or natural objects. It would also serve an important role in the field of human-computer interaction, product usability, aids devices for cognition degenerative individuals, and even the field of visual recognition of daily human behavior.  相似文献   

16.
17.
It is shown that a topographic product P, first introduced in nonlinear dynamics, is an appropriate measure of the preservation or violation of neighborhood relations. It is sensitive to large-scale violations of the neighborhood ordering, but does not account for neighborhood ordering distortions caused by varying areal magnification factors. A vanishing value of the topographic product indicates a perfect neighborhood preservation; negative (positive) values indicate a too small (too large) output space dimensionality. In a simple example of maps from a 2D input space onto 1D, 2D, and 3D output spaces, it is demonstrated how the topographic product picks the correct output space dimensionality. In a second example, 19D speech data are mapped onto various output spaces and it is found that a 3D output space (instead of 2D) seems to be optimally suited to the data. This is an agreement with a recent speech recognition experiment on the same data set.  相似文献   

18.
针对三维组态软件三维监控场景组态困难以及人机交互复杂的问题,提出一种基于本体的三维场景快速组态方法以及分层三维交互模型。在三维组态软件设计中给监控设备模型加入语义信息,使组态过程智能化,从而使监控场景的组态更加简便,人机交互更加自然。采用分层的人机交互模型,实现了高层交互的设备无关性,有利于系统的扩展。采用以上方法增强了三维组态软件开发及使用的有效性。  相似文献   

19.
一种基于部件空间分布的三维模型检索方法   总被引:4,自引:0,他引:4  
万丽莉  赵沁平  郝爱民 《软件学报》2007,18(11):2902-2913
三维形状分析是三维模型检索的关键问题.提出一种基于三维模型部件空间分布的形状特征描述方法.此方法的主要思想是依据认知心理学的理论,在描述对象形状时强调它的结构属性.首先将三维模型分割为若干个组成部件,每个部件用一个曲面片表示,然后采用曲面片的质心位置、面积占总面积的百分比的组合作为部件特征,最后将满足指定条件的部件特征的集合作为三维模型的形状特征.基于这一特征表示,给出了一种三维模型检索方法.该方法具有受模型精度和连通性影响较小、相似性度量的计算速度较快的优点.实验结果验证了该检索方法的有效性.  相似文献   

20.
三维相机用于移动机器人环境感知,可以实时、可靠、较高精度地获取未知环境三维信息,提出了灰度信息和三维信息相结合提取突起障碍物的方法,通过提取障碍物的特征,识别未知地形的可通行区域.实验表明:该方法即使在障碍物与周围环境灰度值几乎一致的情况下,也有较好的识别效果.  相似文献   

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