项目名称: 基于图片的交互式建筑物建模
项目编号: No.61202221
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 计算机科学学科
项目作者: 李扬彦
作者单位: 中国科学院深圳先进技术研究院
项目金额: 25万元
中文摘要: 随着各种可拍照设备的普及,图片获取已非常容易,如何用图片快速重建现实世界三维模型仍然是计算机图形学和视觉领域的热点和难点研究问题。建筑作为城市场景中最重要的组成部分,其三维模型的构建受到学术界和产业界的广泛关注。现有基于图片的建筑建模中,自动化方法建模效果欠佳且对输入图片数量和拍摄角度要求较高;而交互式方法需要用户通过大量勾画形成完整几何结构,效率低。本项目主要研究如何结合建筑先验分析图片线段空间关系,自动地推测及扩展建筑几何结构,并主动呈现自动分析的不确定性以启发用户纠正和引导系统进行三维重建,实现自动分析与用户交互有机结合,从而改善用户体验,提高建模效率与鲁棒性。拟解决关键科学问题包括几何结构的自动推测与扩展、主动启发式呈现及用户交互规律挖掘与运用。项目拟提出有效融合建筑图片信息、建筑先验知识及用户交互求解几何结构的计算框架,旨在发展新的交互式建筑建模技术,实现简便高效的建筑建模。
中文关键词: 三维重建;形状检索;联合嵌入;场景合成;形变事件
英文摘要: As the wide spread of various camera equipment, image becomes easy to be acquired, yet the research on how to quickly reconstruct 3D model of real world from images is still a hot topic and hard topic in both Computer Graphics and Computer Vision field. The 3D model reconstruction of architectures, as the most important part of the urban scene, attracts wide attention from both academia and industry. Among existing image-based architecture modeling methods, automated approach can hardly provide plausible results while poses limitations on image number and shooting angle; interactive approach demands large amount of user sketches to form a complete geometry, which is inefficient. In order to effectively combine automatic analysis and user interaction thereby improving the user experience and modeling efficiency and robustness, this project studies integrating architecture priories into the analysis of image segments, automatic speculating and propagating of architecture geometry and initiative visualization of the uncertainties arisen therein to inspire users' correction and guidance. Three key scientific issues are to be addressed in this project: automatic geometry speculating and propagating, initiative heuristic visualization and user interaction law mining and utilization. This project proposes a computation
英文关键词: 3D Reconstruction;Shape Retrieval;Joint Embedding;Scene Synthesis;Morphological Event