Landslides are catastrophic geological risks that unexpected. This study aims to develop a Landslide Vulnerability Map of Barangay Fatima, Pantabangan, Nueva Ecija. Mapping has been developed mitigate the adverse effect landslide. interprets and integrate landslide factors; elevation, slope, rainfall, soil classification, land cover, proximity road fault lines generate vulnerability map. The ei...

Some applications such as the autonomous navigation in natural terrain and the automation of map making process require highlevel scene descriptions as well as geometrical representation of the natural terrain environments. In this paper, we present methods for building high level terrain descriptions, referred to as topographic maps, by extracting terrain features like “peaks,” “pits,” “ridges...

A system for enhancing the situational awareness in an outdoor scenario by Augmented Reality (AR) techniques can utilize visual clues for improving registration precision. If visible, terrain silhouettes provide unique features to be matched with digital elevation map (DEM) data. The best match of a visually extracted silhouette with the DEM silhouette provides camera/observer orientation (elev...

Spatial data uncertainty models (SDUM) are necessary tools that quantify the reliability of results from geographic information system (GIS) applications. One technique used by SDUM is Monte Carlo simulation, a technique that quantifies spatial data and application uncertainty by determining the possible range of application results. A complete Monte Carlo SDUM for generalized continuous surfac...

PURPOSE To compare the changes in posterior corneal curvature using scanning slit topography (Orbscan II) and Scheimpflug imaging (Pentacam) before and after Epi-laser in situ keratomileusis (LASIK) for myopia. METHODS In a prospective observational case-series study, 20 myopic patients having undergone Epi-LASIK were examined serially with two different devices, Orbscan II and Pentacam, preo...

In this paper we describe a procedure for generating building models from large scale vector maps and laser altimeter data. In contrast to other approaches the map information is not used to form hypotheses about the roofs. Our approach permits the recognition of additional structures as superstructures which can not be derived from building outlines shown in the map. First the vector map is an...

The identification of valley networks and channels is an essential tool for geomorphological interpretations of the fluvial, glacial and volcanic history of Mars. While the creation of valley networks by erosion is an accepted hypothesis, the flow of water as the sole cause has recently been put into question [1]. To investigate the origin of the networks, their detailed properties have to be m...

In this paper a new on-Mars calibration procedure of a planetary lander vision system is presented. It is based on recent developments in computer vision. The calibration is retrieved from the images of the Mars terrain (the same images from which the 3D measurements of the terrain are obtained). The procedure is based on the relations between multiple views of the same scene. The main advantag...