面向移动网络终端的三维模型渐进传输研究

项目名称： 面向移动网络终端的三维模型渐进传输研究

项目编号： No.61272430

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 自动化技术、计算机技术

项目作者： 李晋江

作者单位： 山东工商学院

项目金额： 80万元

中文摘要： 随着移动终端的迅猛增长及移动网络规模的扩大，特别是近年来3G网络建设的如火如荼的开展，在移动终端上进行三维模型的绘制和交互是一个重要的课题，在很多应用中都表现出显著的优势和发展潜力。针对移动设备计算能力有限、屏幕分辨率小，无线网络带宽受限等特点，研究三维模型在移动终端上的渐进传输具有十分重要的意义。鉴于此，本项目旨在研究保持视觉重要特征的三维模型多分辨率传输。提出了基于Surfacelet的特征提取算法，能够进行方向滤波，可更好地进行边缘、轮廓定位。提出一种任意的三角网格连续的多变分辨率的表示方法，对简化误差进行控制，提高了简化的精度。构建一种有效的分组机制来减少报文之间的依赖关系。考虑了纹理形变量的影响，对模型的重要特征部分进行预判，不需要复杂计算也可很好地保留模型的纹理边界，适用于移动平台。本课题还将在实际的无线网络环境中进行实验验证并分析算法的效果。

中文关键词： 移动网络；三维模型；多分辨率；渐进传输；

英文摘要： With the rapid growth of the mobile terminal and the expansion of mobile networks, especially the construction of 3G networks in recent years to carry out in full swing, 3D model rendering and interaction in the mobile terminal is an important issue, which has shown significant advantages and development potential in many applications. Taking into account the limited computing power of mobile devices, small screen resolution, wireless network bandwidth is limited, progressive transmission of three-dimensional model on the mobile terminal has a great significance. In view of this, the project aims to study the three-dimensional model multi-resolution transmission maintaining a visually important feature. Surfacelet-based feature extraction algorithm is proposed, with directional filtering, better contour orientation. The project proposes an arbitrary triangular mesh continuously changing resolution representation, which simplified error control and improve the accuracy of simplification. An effective grouping mechanism is build to reduce the dependencies between packets. Consider the impact of texture deformation, an important feature of the model is anticipation, and it can be good to retain the texture of the model boundary without requiring complex calculations, which apply to the mobile platform. The project

英文关键词： mobile network；3D model；multi-resolution；progressive transmission；