期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2007
卷号：XXXVI-3/W49B
页码：125-130
出版社：Copernicus Publications
摘要：The present contribution demonstrates the feasibility and explores the limits of a new method for estimating the velocity and direction of moving targets using a single VHR satellite dataset. The method is based on the fact that there is a time lag between the data collection of the panchromatic (PAN) and multi-spectral (MS) sensors in the same VHR platform. Consequently, it is developed around three main steps: i) accurate image-to-image registration between MS and PAN images with a sub-pixel displacement error, ii) precise location of barycentre of targets by mathematical morphology-based image transforms, and iii) estimation of the targets ground velocity and direction using the MS-PAN spatial displacement, the known time lag, and an image-to-ground transformation taking into account the interior and exterior orientation of the sensors and a terrain height reference. An evaluation of the reliability and limits of the proposed method based on the observation of the results regarding manually-selected moving and non-moving targets is included
关键词：Fast moving target detection; satellite imagery; optical very high resolution (VHR) sensors
