360度自转三维异形物体影像投射系统的研究与实现
发布时间：2018-08-11 19:27
【摘要】：三维影像投射技术的英文是3D projection mapping,中文有人翻译为三维影装,指运用影像边缘融合算法,开发一种将预先制作好的或实时生成的静态或动态影像,通过单台或多台投影仪投射在三维静态或动态物体上的技术。作为结果,在这些被投射物体上产生了动态的视觉应用和神奇的影像艺术效果。运用这一影像投影技术,可以在科学普及、科学与艺术结合的展示领域,形成具有强烈艺术感染力的动态的三维投影效果和作品。目前的三维影像投射方式分为四类:第一类将动态的影像内容投射在具有一定进深的二维为主的物体上,对物体的形态和边缘进行影像创意。这种投射可以使用单台投影仪对物体进行投射,也可以是多台投影仪运用影像边缘融合技术对此类物体进行影像创意投射。第二类则是将动态的视频内容投射在静态的、规范的三维几何形体上,同样的,这种投射可以是一台投影仪也可以是多台投影仪投射,但是所投射的影像多为硬拼接,不需要使用影像边缘融合技术进行投射。第三类是第一类和第二类的结合,即将事先制作好的、或实时生成的动态视频内容投射到异形三维立体上,但一定是多台投影仪并且是运用影像边缘融合技术实施的投射。第四类是第三类的发展,使用多台投影仪运用影像边缘实时融合技术,在绕轴进行360度自转的异形三维物体上,进行动态、实时影像内容的投射。本文的研究结果是第四类三维影像投射技术,此类技术目前在国内尚属空白,本文通过进一步研究虚拟空间和现实空间的关系,完成两者的同步,保证虚拟空间和现实空间的一致,利用虚拟摄像机代替投影仪位置,虚拟摄像机拍摄到的内容即是投影仪需要显示的内容。最终达到虚拟空间物体与现实空间物体同步转动,同时实时渲染输出图像,使得现实空间中物体不断转动时,也能保证实时覆盖被投影物体。为了达成这一目标,首先需要建立物体的三维模型,保证虚拟空间和现实空间的一致,其中需要通过三维扫描技术,将模型的精确点云扫描到计算机中,通过3DMAX或者MAYA软件对物体进行拓扑建模,再使用实时渲染技术,保证虚拟空间的实时动态性。完成基本环境搭建后,需要使虚拟空间和现实空间同步,使用一些传感器等设备,实时获取现实空间的数据,反馈到虚拟空间中,完成同步。最后,物体投影的内容需要进行设计,根据不同物体做不同的设计,让艺术的影像内容真正可以动态的、实时的投射到360度绕轴进行运动的、异形的物体上。应用这一套系统,可以对任何静态或动态的、规则的或者异形的三维物体进行动态影像和360度绕轴旋转移动的动态三维物体进行实时动态影像投射,从而在科学普及、科学与艺术结合的展示领域,形成具有强烈艺术感染力的三维动态影像投影效果和作品。
[Abstract]:Three-dimensional image projection mapping is a three-dimensional projection mapping technology. Some Chinese translators translate it into three-dimensional image costume. It refers to the application of image edge fusion algorithm to develop a technique for projecting pre-made or real-time static or dynamic images onto three-dimensional static or dynamic objects through one or more projectors. Some projected objects produce dynamic visual applications and magical image artistic effects. Using this image projection technology, we can form dynamic three-dimensional projection effects and works with strong artistic appeal in the field of science popularization and the combination of science and art. Class 2 projects dynamic image content onto a two-dimensional object with a certain depth, and creates images of the shape and edge of the object. This kind of projection can use a single projector to project the object, or multiple projectors can use image edge fusion technology to create images of such objects. In the same way, it can be projected by one projector or more than one projector, but the projected images are mostly hard stitching and do not require the use of image edge fusion technology. Prefabricated or real-time generated dynamic video content is projected onto a three-dimensional profile, but it must be multiple projectors and implemented using image edge fusion technology. The fourth category is the development of the third category, using multiple projectors to use real-time image edge fusion technology, rotating 360 degrees around the axis of a three-dimensional profile. The research result of this paper is the fourth kind of three-dimensional image projection technology. This kind of technology is still blank in our country at present. Through further studying the relationship between the virtual space and the real space, this paper completes the synchronization of the two, guarantees the consistency of the virtual space and the real space, and makes use of the virtual camera. Instead of the projector position, the content captured by the virtual camera is what the projector needs to display. Finally, the virtual space object rotates synchronously with the real space object. At the same time, the output image is rendered in real-time, so that the real-time coverage of the projected object can be guaranteed when the object in the real space rotates continuously. Firstly, it is necessary to establish the 3D model of the object to ensure the consistency between the virtual space and the real space, in which the exact point cloud of the model is scanned into the computer by the 3D scanning technology, the object is modeled by the 3D MAX or MAYA software, and then the real-time rendering technology is used to ensure the real-time dynamic of the virtual space. After setting up the environment, it is necessary to synchronize the virtual space with the real space. Some sensors and other devices are used to acquire the real-time data of the real space and feedback them to the virtual space to complete the synchronization. Projected to a 360-degree axis moving, abnormal object. With this system, any static or dynamic, regular or abnormal three-dimensional object can be dynamically imaged and the 360-degree axis rotating dynamic three-dimensional object can be real-time dynamically imaged. Thus, the popularity of science, science and art combined display. Field, forming three-dimensional dynamic image projection effect and works with strong artistic appeal.
【学位授予单位】：北京工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP391.41
，
本文编号：2178011
[Abstract]:Three-dimensional image projection mapping is a three-dimensional projection mapping technology. Some Chinese translators translate it into three-dimensional image costume. It refers to the application of image edge fusion algorithm to develop a technique for projecting pre-made or real-time static or dynamic images onto three-dimensional static or dynamic objects through one or more projectors. Some projected objects produce dynamic visual applications and magical image artistic effects. Using this image projection technology, we can form dynamic three-dimensional projection effects and works with strong artistic appeal in the field of science popularization and the combination of science and art. Class 2 projects dynamic image content onto a two-dimensional object with a certain depth, and creates images of the shape and edge of the object. This kind of projection can use a single projector to project the object, or multiple projectors can use image edge fusion technology to create images of such objects. In the same way, it can be projected by one projector or more than one projector, but the projected images are mostly hard stitching and do not require the use of image edge fusion technology. Prefabricated or real-time generated dynamic video content is projected onto a three-dimensional profile, but it must be multiple projectors and implemented using image edge fusion technology. The fourth category is the development of the third category, using multiple projectors to use real-time image edge fusion technology, rotating 360 degrees around the axis of a three-dimensional profile. The research result of this paper is the fourth kind of three-dimensional image projection technology. This kind of technology is still blank in our country at present. Through further studying the relationship between the virtual space and the real space, this paper completes the synchronization of the two, guarantees the consistency of the virtual space and the real space, and makes use of the virtual camera. Instead of the projector position, the content captured by the virtual camera is what the projector needs to display. Finally, the virtual space object rotates synchronously with the real space object. At the same time, the output image is rendered in real-time, so that the real-time coverage of the projected object can be guaranteed when the object in the real space rotates continuously. Firstly, it is necessary to establish the 3D model of the object to ensure the consistency between the virtual space and the real space, in which the exact point cloud of the model is scanned into the computer by the 3D scanning technology, the object is modeled by the 3D MAX or MAYA software, and then the real-time rendering technology is used to ensure the real-time dynamic of the virtual space. After setting up the environment, it is necessary to synchronize the virtual space with the real space. Some sensors and other devices are used to acquire the real-time data of the real space and feedback them to the virtual space to complete the synchronization. Projected to a 360-degree axis moving, abnormal object. With this system, any static or dynamic, regular or abnormal three-dimensional object can be dynamically imaged and the 360-degree axis rotating dynamic three-dimensional object can be real-time dynamically imaged. Thus, the popularity of science, science and art combined display. Field, forming three-dimensional dynamic image projection effect and works with strong artistic appeal.
【学位授予单位】：北京工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP391.41
，
本文编号：2178011
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