Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1117/12.2016790 |
Comparison of Broad-band and Hyperspectral Thermal Infrared Imaging of Buried Threat Objects | |
McFee, John E.; Achal, Stephen B.; Diaz, Alejandra U.; Faust, Anthony A. | |
通讯作者 | McFee, John E. |
会议名称 | Conference on Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XVIII |
会议日期 | APR 29-MAY 02, 2013 |
会议地点 | Baltimore, MD |
英文摘要 | Previous research by many groups has shown that broad-band thermal infrared (TIR) imagers can detect buried explosive threat devices, such as unexploded ordnance (UXO), landmines and improvised explosive devices (IEDs). Broad-band detection measures the apparent temperature - an average over the wave band of the product of the true soil surface temperature and the emissivity. Broad-band detection suffers from inconsistent performance (low signal, high clutter rates), due in part to diurnal variations, environmental and meteorological conditions, and soil surface effects. It has been suggested that hyperspectral TIR imaging might have improved performance since it can, in principle, allow extraction of the wavelength-dependent emissivity and the true soil surface temperature. This would allow the surface disturbance effects to be separated from the soil column (bulk) effects. A significant, and as yet unanswered, question is whether hyperspectral TIR images provide better detection capability (higher probability of detection and/or lower false alarm rate) than do broad-band thermal images. TIR hyperspectral image data of threat objects, buried and surface-laid in bare soil, were obtained in arid, desert-like conditions over full diurnal cycles for several days. Regions of interest containing threat objects and backgrounds were extracted throughout the time period. Simulated broad-band images were derived from the hyperspectral images. The diurnal variation of the images was studied. Hyperspectral was found to provide some advantage over broad-band imaging in detection of buried threat objects for the limited data set studied. |
英文关键词 | landmine improvised explosive devices detection hyperspectral imaging thermal infrared broad-band |
来源出版物 | DETECTION AND SENSING OF MINES, EXPLOSIVE OBJECTS, AND OBSCURED TARGETS XVIII |
ISSN | 0277-786X |
EISSN | 1996-756X |
出版年 | 2013 |
卷号 | 8709 |
EISBN | 978-0-8194-9500-6 |
出版者 | SPIE-INT SOC OPTICAL ENGINEERING |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Canada |
收录类别 | CPCI-S |
WOS记录号 | WOS:000323561500034 |
WOS类目 | Engineering, Electrical & Electronic ; Remote Sensing ; Optics |
WOS研究方向 | Engineering ; Remote Sensing ; Optics |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/302209 |
作者单位 | Def R&D Canada Suffield, Stn Main, Medicine Hat, AB T1A 8K6, Canada |
推荐引用方式 GB/T 7714 | McFee, John E.,Achal, Stephen B.,Diaz, Alejandra U.,et al. Comparison of Broad-band and Hyperspectral Thermal Infrared Imaging of Buried Threat Objects[C]:SPIE-INT SOC OPTICAL ENGINEERING,2013. |
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