Application of Geospatial knowledge, skills &Technology (GPS, GIS, RS) to the resolution of real-world social, economic & environmental problems
Piqiang Fault
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Satellite image of the Piqiang Fault, a northwest trending left-lateral strike-slip fault in the Taklamakan Desert south of the Tian Shan Mountains, China (40.3°N, 77.7°E). (credit: NASA Earth Observatory images)
Filtering in Remote Sensing. Convolution. Edge enhancement. Low pass filter and High-pass filter Spatial filtering is a technique used in remote sensing to enhance the spatial resolution of an image. This is typically done by using a mathematical algorithm to process the raw data collected by the remote sensing instrument, with the goal of reducing noise and improving the overall quality of the image. Spatial frequency in remote sensing refers to the density of spatial details or features in an image. It is a measure of how quickly the intensity or brightness of an image changes over a given distance. High spatial frequency indicates a high density of fine details or edges in an image, while low spatial frequency indicates a low density of fine details or edges. Spatial frequency is an important concept in remote sensing because it can affect the ability to detect and interpret features in an image. It can also be used to evaluate the quality and usefulness of an image for certain type...
Edge detection is a common technique used in remote sensing to identify and extract the boundaries or edges of objects in an image. This can be useful for identifying changes in land cover, detecting features such as roads or buildings, and improving the overall interpretation and classification of an image. Edge detection algorithms typically use mathematical techniques to identify abrupt changes in pixel values within an image. These changes may indicate the presence of an edge or boundary between two distinct objects or areas. Edge detection is an important tool in remote sensing for a number of reasons. It can be used to identify objects or features in an image, such as roads, buildings, or vegetation. It can also be used to improve image classification by highlighting important features that may not be easily visible in the raw data. Additionally, edge detection can be used to improve image registration and mosaicking, by providing a common reference point for aligning multiple im...
International oceanographic program Intergovernmental Oceanographic Commission , UNESCO International Council for the Exploration of the Sea International Hydrographic Organization International Ocean Discovery Program , formerly called the Integrated Ocean Drilling Program . InterRidge , an international research collaboration on oceanic seafloor spreading zones. North Pacific Marine Science Organization (PICES) Scientific Committee on Oceanic Research , part of the International Science Council . By American Geophysical Union Association for the Sciences of Limnology and Oceanography Coastal and Estuarine Research Federation European Geosciences Union The Oceanography Society India Center for Marine Living Resources in Kerala, under the Ministry of Earth Sciences . CMLRE Central Marine Fisheries Research Institute, Kochi, Kerala, under the Indian Council of Agricultural Research . CMFRI National Centre for Ocean Information Services in Pragathi Nagar, Hyderabad. ESSO-INCOI...
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