二维弥散介质温度场的快速重建  

Fast reconstruction of two-dimensional temperature distribution in participating medium

作　　者：刘冬[1] 王飞[1] 黄群星[1] 严建华[1] 池涌[1] 岑可法[1] 

机构地区：[1]浙江大学能源清洁利用国家重点实验室,杭州310027

出　　处：《物理学报》2008年第8期4812-4816,共5页Acta Physica Sinica

基　　金：国家自然科学基金重点项目(批准号:60534030);教育部长江学者和创新团队发展计划(批准号:IRT0434)资助的课题~~

摘　　要：提出了一种利用电荷耦合器件摄像机获取的辐射信息进行二维弥散介质温度场快速重建的新模型.与现有的温度场重建模型相比,该模型是以逆向Monte Carlo方法为基础,重建速度更快、效率更高,能更好地描述散射介质.采用了一个精确的二维温度场作为重建对象,结果表明,即使在存在测量误差的情况下,利用此模型重建出的温度场仍能重现原有精确温度场的特征.An original model was presented for fast reconstruction of two-dimensional temperature distribution in participating medium using radiative information captured by charge-coupled device cameras.Compared with present models for temperature reconstruction,the model developed here is based on backward Monte Carlo method and reconstruction speed is faster,it is more efficient and can describe the scattering medium better.An exact two-dimensional temperature was assumed to be the reconstruction object and results show that even if there are measurement errors,the reconstructed temperature distribution can reproduce the original temperature distribution.

关 键 词：温度场重建 逆向Monte Carlo 电荷耦合器件摄像机 反问题 

分 类 号：TN948.41[电子电信—信号与信息处理]