High Quality Ortho-image Production Using the High Resolution DMCII Aerial Image

Abstract

An Ortho-image is the production of removed geometrical displacement, which is generated the aerial image distortion and the relief displacement, etc., using the DSM (Digital Surface Model). Accordingly, the resolution of raw image and the accuracy of DSM will has significant impacts on the ortho-image accuracy. Since the latest DMCⅡ250 aerial camera delivers the high resolution images with five centimeters Ground Sampling Distance(GSD), it expects to generate the high density point clouds and the high quality ortho-images. Therefore, this research has planned for reviewing the potentiality and accuracy of high quality ortho-image production. Following to proceed the research, DSM has been produced through the high density point cloud extracted from DMCⅡ250 aerial image to supply of high density DSM by creation of ortho-image. The research results has been identified that images with the DSM brought out higher degrees in positional accuracy and quality of ortho-image, compared with the ortho-image, produced from the existing digital terrain map or DSM data. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http:// creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Construction of 3D Digitizing Data Using Aerial Photographs Acquired by UAV

“…The domestic UAV market, with the global growth of the commercial UAV market, is rapidly growing at more than three times the rate of the previous year [10][11][12]. UAVs in the field of spatial information have attracted much attention in terms of the speed and economics of data acquisition, and various studies have been conducted [13][14][15]. Acquiring 3D geospatial information such as point cloud data, Digital Elevation Models (DEM), and ortho images from images taken from a UAV, GPS surveying performance and comparative analysis were performed to analyze the accuracy of acquired data.…”