干旱区生态环境知识资源中心(Arid): Depth from Optical Turbulence.

Arid

报告编号	ADA559909
	Depth from Optical Turbulence.
	Tian, Y; Narasimhan, S. G; Vannevel, A. J.
英文摘要	Turbulence near hot surfaces such as desert terrains and roads during the summer, causes shimmering, distortion and blurring in images. While recent works have focused on image restoration, this paper explores what information about the scene can be extracted from the distortion caused by turbulence. Based on the physical model of wave propagation,we first study the relationship between the scene depth and the amount of distortion caused by homogenous turbulence. We then extend this relationship to more practical scenarios such as finite extent and height-varying turbulence and present simple algorithms to estimate depth ordering, depth discontinuity and relative depth, from a sequence of short exposure images. In the case of general non- homogenous turbulence, we show that a statistical property of turbulence can be used to improve long-range structure-from-motion (or stereo). We demonstrate the accuracy of our methods in both laboratory and outdoor settings and conclude that turbulence (when present) can be a strong and useful depth cue.
英文关键词	Clear air turbulence Algorithms Distortion High temperature Images Optical properties Outdoor Symposia
出版年	2012
语种	英语
来源学科分类	55C - Meteorological Data Collection, Analysis, & Weather Forecasting ; 46C - Optics & Lasers ; 68A - Air Pollution & Control ; 85H - Road Transportation
URL	http://r.cnki.net/KCMS/detail/detail.aspx?DbCode=KJBG&dbname=KJBGW&filename=59fb0da831c97d1d549e5f00
来源机构	Non Paid ADAS
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/273842
推荐引用方式 GB/T 7714	Tian, Y,Narasimhan, S. G,Vannevel, A. J.. Depth from Optical Turbulence.,2012.