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Remote Sensing
Remote Sensing
Remote Sensing is the process of detecting and
monitoring the physical characteristics of an area by measuring its reflected
and emitted radiation at a distance from the targeted area. Special cameras
collect remotely sensed images of the Earth, which help researchers "sense"
things about the Earth. Some examples are Cameras on satellites and airplanes
take images of large areas on the Earth's surface, allowing us to see much more
than we can stand on the ground. Sonar systems on ships can be used to create
images of the ocean floor without needing to travel to the bottom of the ocean.
Cameras on satellites can be used to make images of temperature changes in the
oceans.
Remote sensors collect data by detecting the
energy that is reflected from Earth. These sensors can be on satellites or
mounted on aircraft. Remote sensors can be either passive or active. Passive
sensors respond to external stimuli. They record natural energy that is
reflected or emitted from the Earth's surface. The most common source of
radiation detected by passive sensors is reflected sunlight. In contrast,
active sensors use internal stimuli to collect data about Earth. For example, a
laser-beam remote sensing system projects a laser onto the surface of Earth and
measures the time that it takes for the laser to reflect back to its sensor.
Dr. Md. Altaf Hossain is is presenting oral Presentation on Remote Sensing & GIS Applications in Earth Sciences.
Mrs.
Yelena Gambarova is presenting Poster Presentation on Remote Sensing & GIS
Applications in Earth Sciences.
Remote
Sensing applications perform many features including: Change Detection is determining
the changes from images taken at different times of the same area.
Orthorectification is Warp an image to its location on the earth. Spectral
Analysis is For example, using non-visible parts of the electromagnetic
spectrum to determine if a forest is healthy. Image Classification is Categorization
of pixels based on reflectance into different land cover classes (e.g.
supervised classification, unsupervised classification and Object Oriented
Classification)
We would
like to formally invite you to be a participant in the upcoming “International
Congress & Expo on Earth Science & Geo Science Theme of the conference
is focused on Stimulating and Analyzing the Changes of Earth & Climate
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