Subgrid scale formulation of optical flow for the study of turbulent flow
文献类型：期刊论文
| 作者 | Cassisa, C.1; Simoens, S.2; Prinet, V.3; Shao, L.2
|
| 刊名 | EXPERIMENTS IN FLUIDS
 |
| 出版日期 | 2011-12-01 |
| 卷号 | 51期号:6页码:1739-1754 |
| 英文摘要 | We propose a new formulation of optical flow in the case of passive scalar or solid particles spreading in turbulent flows. The flow equation is defined from the scalar transport equation and a decomposition of our physical quantities (velocity and concentration fields) into two contributions, large and small scales, to account for the lack of spatial resolution in processed images. A subgrid scale model is introduced to model the small scale contribution. Comparisons are made with existing optical flow methods and Particle Image Velocimetry on synthetic and real sequences. The improvement of the estimation of velocity field by the proposed formulation is discussed in the case of a scalar turbulent propagation. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Mechanical ; Mechanics |
| 研究领域[WOS] | Engineering ; Mechanics |
| 关键词[WOS] | IMAGING VELOCIMETRY MEASUREMENTS ; GRADIENT TENSOR FIELD ; ROBUST ESTIMATION ; BOUNDARY-LAYER ; VARIABLE WIDTH ; STREET CANYON ; LINE SOURCE ; COMPUTATION ; SIMULATION ; DISPERSION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000297167400019 |
| 公开日期 | 2015-12-24 |
| 源URL | [http://ir.ia.ac.cn/handle/173211/9973]  |
| 专题 | 自动化研究所_模式识别国家重点实验室_多媒体计算与图形学团队 |
| 作者单位 | 1.Tsinghua Univ, Lab Turbulence, Beijing 100084, Peoples R China 2.Ecole Cent Lyon, CNRS, Lab Fluid Mech & Acoust, UMR 5509, Ecully, France 3.Chinese Acad Sci, Natl Lab Pattern Recognit, Inst Automat, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cassisa, C.,Simoens, S.,Prinet, V.,et al. Subgrid scale formulation of optical flow for the study of turbulent flow[J]. EXPERIMENTS IN FLUIDS,2011,51(6):1739-1754. |
| APA | Cassisa, C.,Simoens, S.,Prinet, V.,&Shao, L..(2011).Subgrid scale formulation of optical flow for the study of turbulent flow.EXPERIMENTS IN FLUIDS,51(6),1739-1754. |
| MLA | Cassisa, C.,et al."Subgrid scale formulation of optical flow for the study of turbulent flow".EXPERIMENTS IN FLUIDS 51.6(2011):1739-1754. |
入库方式： OAI收割
来源：自动化研究所
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