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Automated Image Registration Using Morphological Region of Interest Feature ExtractionWith the recent explosion in the amount of remotely sensed imagery and the corresponding interest in temporal change detection and modeling, image registration has become increasingly important as a necessary first step in the integration of multi-temporal and multi-sensor data for applications such as the analysis of seasonal and annual global climate changes, as well as land use/cover changes. The task of image registration can be divided into two major components: (1) the extraction of control points or features from images; and (2) the search among the extracted features for the matching pairs that represent the same feature in the images to be matched. Manual control feature extraction can be subjective and extremely time consuming, and often results in few usable points. Automated feature extraction is a solution to this problem, where desired target features are invariant, and represent evenly distributed landmarks such as edges, corners and line intersections. In this paper, we develop a novel automated registration approach based on the following steps. First, a mathematical morphology (MM)-based method is used to obtain a scale-orientation morphological profile at each image pixel. Next, a spectral dissimilarity metric such as the spectral information divergence is applied for automated extraction of landmark chips, followed by an initial approximate matching. This initial condition is then refined using a hierarchical robust feature matching (RFM) procedure. Experimental results reveal that the proposed registration technique offers a robust solution in the presence of seasonal changes and other interfering factors. Keywords-Automated image registration, multi-temporal imagery, mathematical morphology, robust feature matching.
Document ID
20050180305
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Plaza, Antonio
(Extremadura Univ. Caceres, Spain)
LeMoigne, Jacqueline
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Netanyahu, Nathan S.
(Bar-Ilan Univ. Ramat-Gan, Israel)
Date Acquired
September 7, 2013
Publication Date
January 1, 2005
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: Multi Temp 2005 Conference
Location: Biloxi, MS
Country: United States
Start Date: May 16, 2005
End Date: May 18, 2005
Distribution Limits
Public
Copyright
Public Use Permitted.
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