DMCA
A New Approach for Extraction of Information from Unoverlapped Photographed Area of a Stereo-pair
BibTeX
@MISC{Ragab_anew,
author = {Ayman F. Ragab},
title = {A New Approach for Extraction of Information from Unoverlapped Photographed Area of a Stereo-pair},
year = {}
}
Share
 |
 |
 |
 |
||
OpenURL
Abstract
Abstract: Most of conventional photogrammetric tasks in reconstructing the 3D object space have been mainly relying on distinct discrete points, to be totally associated with all underlying operations, just only in the overlapping region between photos. Nowadays, with the advent of digital photogrammetry, the used digital imagery has facilitated the opportunity to implement linear features, in addition to points, in various photogrammetric activities. The discriptive power of lines for 3D object reconstruction has been motivated by the major advantages of dealing with these straight lines (directions), especially with its great ability of automatically and reliably extracting these linear features from the input imagery. Also, linear features can be used to increase redundancy and improve the geometric strength of photogrammetric applications. This paper makes use of the benefits of these straight linear features or directions in determining the 3D ground coordinates of some object points, which are not presented in the overlap area of a certain stereo-pair. The developed approach deals with the image of the interest point in the first photo only, along with a specified direction, on which this point lies in the second photo. This approach gives a comparable results in 3D positionong, with the traditional concept of overlapping points, but with the possibility of decreasing the required overlap between photos, in order to cover a great extent of a certain area in less time and effort. Key words: New approach for extraction Stereo-pair Egypt
Keyphrases
new approach linear feature unoverlapped photographed area geometric strength first photo various photogrammetric activity photogrammetric application straight linear feature specified direction overlap area distinct discrete point great extent comparable result object space certain area great ability interest point extraction stereo-pair egypt developed approach deal conventional photogrammetric task input imagery object point ground coordinate certain stereo-pair digital photogrammetry object reconstruction required overlap major advantage straight line key word second photo discriptive power traditional concept used digital imagery
