نتایج جستجو برای: lineaments
تعداد نتایج: 427 فیلتر نتایج به سال:
lineaments are the most important phenomena of geological exploration of hydrocarbon reservoirs . concepts in order to map the contours of land need so much time and money. one of the most famous methods in lineaments extraction is satellite image processing. in this paper, an overview of lineament extraction methods and a new method based on canny edge detection algorithm is raised. the result...
Geological structures, such as faults and fractures, appear as image discontinuities or lineaments in remote sensing data. Geologic lineament mapping is a very important issue in geo-engineering, especially for construction site selection, seismic, and risk assessment, mineral exploration and hydrogeological research. Classical methods of lineaments extraction are based on semi-automated (or vi...
The objective of this investigation was to determine the feasibility of mapping lineaments on Landsat images of ElRouge, and Al-Ghab depressions, north-west of Syria, and to determine the tectonic significance of these lineaments in order to evaluate the capabilities and limitations of spaceborne data to prove that El-Rouge depression is the extension of Al-Ghab depression and both of them in l...
We describe several segmented lineaments on Europa’s surface. These lineaments are extensive, stretching for 100s–1000s of km, and have ridge complex or bright band morphologies. The geometries of the segmented portions of these features are diagnostic of the remote normal and shear stress environment in which they formed and, therefore, constrain ridge complex and bright band formation mechani...
Process algebra has been successful in many ways; but we don’t yet see the lineaments of a fundamental theory. Some fleeting glimpses are sought from Petri Nets, physics and geometry.
The Voyager and Galileo images of Europa and the Viking Orbiter images of Phobos revealed the surface cracking and fracture systems of the satellites of Jupiter and Mars. The complex system of lineaments and grooves cover the whole surface of these satellites. Based on earlier studies we compared the main characteristics of these structures and propose a joint model of the layered structure (Ph...
Abstract Remote sensing (RS) applications have become an important tool for the rapid evaluation of water resources. This paper deals with the utilization of RS data as the main input in an integrated approach for groundwater targeting. The Mulug Taluk, with an areal extent of 3200 km, is one of the poor taluks in the Warangal District, Andhra Pradesh, India. A hydrogeomorphological study based...
Comprehensive Strip Based Lineament Detection (COSBALID) is a new method that detects lineaments from pointlike features. It is based on the strip concept and composed of various steps, which apply filtering techniques in order to increase the accuracy and linearity of detected lineaments. The structure of the method is so robust that its parameters and variables are partially data driven givin...
This paper presents a new method of automatic lineament extraction which includes the removal of the ‘artefacts effect’ which is associated with the process of raster based analysis. The core of the proposed Multi-Hillshade Hierarchic Clustering (MHHC) method incorporates a set of variously illuminated and rotated hillshades in combination with hierarchic clustering of derived ‘protolineaments’...
Comparison of the distributions of Martian and lunar crater diameters indicates that the visible surface of Mars is 2.2 to 3 x 10(9) years old. This result implies that in the early history of Mars large-scale subaerial erosion occurred. Of 69 Martian craters with diameters greater than 10 kilometers, 13 percent have central peaks. This compares favorably with the frequency (11.7 percent) of ce...
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