从飞机图像测量气象距离的频域

Proceedings of the IEEE Southwest Symposium on Image Analysis and Interpretation Pub Date : 1994-04-21 DOI:10.1109/IAI.1994.336684

J. Barrios, D. Williams, J. Cogan, J. Smith

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引用次数: 3

摘要

理论研究表明，气象距离(能见度的标准度量)可能与场景空间域对比度的变化及其频率响应的非零频率的变化有关。本研究使用飞机拍摄的山景图像来显示非零频率能量的变化可以追踪到一条衰减的指数曲线，其对数斜率描述了该特定场景的气象范围

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Frequency domain measurement of meteorological range from aircraft images

Theoretical work has shown that meteorological range, a standard measure of visibility, can be related to changes in contrast in the spatial domain of a scene, and changes in the non-zero frequencies of its frequency response. The present work employs aircraft images of mountain scenes to show that changes in the energy of non-zero frequencies trace a decaying exponential curve whose logarithmic slope describes the meteorological range for that particular scene.<>

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Proceedings of the IEEE Southwest Symposium on Image Analysis and Interpretation

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