基于图像的燃烧火焰物理参数重建研究

项目名称： 基于图像的燃烧火焰物理参数重建研究

项目编号： No.61300066

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 自动化技术、计算机技术

项目作者： 王旭光

作者单位： 北京航空航天大学

项目金额： 25万元

中文摘要： 火焰的真实物理参数对有很强真实感要求的火焰模拟具有特殊的应用价值，这是因为基于真实物理参数的火焰模拟能表现出燃烧火焰在真实环境中整体规律性强而局部复杂无序的行为。与传统火焰模拟方法相比基于物理参数的火焰模拟方法在真实感方面有明显优势。目前基于物理参数的火焰模拟方法还很少，其主要原因是火焰物理机制复杂、运动变化随机，很难通过直接测量得到准确的物理参数，图像获取技术的发展为火焰物理参数重建提供了新途径。已有的基于图像的火焰物理参数重建算法通常对火焰物理特性做过多简化，基于这些算法的火焰模拟效果不能满足真实感的要求，因而需要对基于图像的火焰物理参数重建问题做专门研究。本研究旨在提出高精度、低成本的基于图像的火焰物理参数重建算法，研究火焰图像的精确获取，研究火焰物理参数的求解模型以及多参数的联合重建，从理论与实验两方面，分析算法的鲁棒性，明确算法的局限性与适用范围，为实际应用提供理论根据。

中文关键词： 火焰模拟；物理参数；重建；真实感；HDR摄像机

英文摘要： Compared with traditional flame simulation methods, physical parameters based one possesses an apparent advantage in terms of reality. Physical parameters based flame simulation plays a particularly important role in practice, for it is able to show the special behaviors of combustion flame, i.e. the physically plausible look as a whole, but complex and chaotic behaviors in part. So far, few physical parameters based flame simulation methods are proposed. Due to complex physical mechanism and random behaviors of the flame, it is difficult to measure the physical parameters directly. Image acquisition technology offers a new way for flame physical parameters reconstruction fortunately, but too much physical mechanisms of the flame are simplified in the very way, which leads to unsatisfactory accuracy of the reconstructed physical parameters and visual effect of the flame simulated based on those physical parameters. So it is necessary to do an in-depth study on the reconstruction of the flame physical parameters. This project aims to put forward a high-accuracy and low-cost flame physical parameters reconstruction algorithm. In this project we will study the accuracy flame image acquisition, physical parameters modeling as well as reconstruction of multiply physical parameter at the same time. Also we will analys

英文关键词： Flame simulation；Physical parameter；Reconstruction；Reality；HDR camera