This presentation is based on remote sensing, its various types and the methods used in different fields. The presentation begins with the definition of remote sensing, its types including advantages and disadvantages of each type. It then shifts to an explanation of optical and infrared remote sensing, microwave remote sensing and images. The next topic includes the major components of remote sensing systems. And finally the concluding points will define it's uses and applications in the IT industry.
[...] How is remote sensing useful? It provides a unique perspective from which to observe large regions. Sensors can measure energy at wavelengths which are beyond the range of human vision (ultra-violet, infrared, microwave). Global monitoring is possible from nearly any site on earth. Remote sensing can be used for applications in several different areas, including: Geology and Mineral exploration Hazard assessment Oceanography Agriculture and forestry Land degradation Environmental monitoring, Applications of IT Use of computers to create image:All higher resolution satellite and specialized airborne images are created using computers. [...]
[...] It is not cost-effective to map a large area using an airborne remote sensing system. Airborne remote sensing missions are often carried out as one-time operations, whereas earth observation satellites offer the possibility of continuous monitoring of the earth. Satellite Remote Sensing with Passive sensors Many remote sensing images around Asia acquired by earth observation satellites. These remote sensing satellites are equipped with sensors looking down to the earth. They are the "eyes in the sky" constantly observing the earth as they go round in predictable orbits. [...]
[...] Canada continues to do research in remote sensing image interpretation. Use of computer to process image: Bibliography Introduction to Remote Sensing by James B. Campbell. Remote Sensing and GIS by Bhatta B. Introduction to remote sensing by Cracknell P. Cracknell and Arthur P. Cracknell Introduction To Remote Sensing by Arthur P. Cracknell REMOTE SENSING Definition Remote sensing is the science or art of acquiring information about the Earth's surface without actually being in contact with it. This is done by sensing and recording reflected or emitted energy and processing, analyzing, and applying that information." Generally, Remote sensing refers to the activities of recording/observing/perceiving (sensing) objects or events at far away (remote) places. [...]
[...] Use of computer to process image: Default Design REMOTE SENSING Definition Remote sensing is the science or art of acquiring information about the Earth's surface without actually being in contact with it. This is done by sensing and recording reflected or emitted energy and processing, analyzing, and applying that information." Generally, Remote sensing refers to the activities of recording/observing/perceiving (sensing) objects or events at far away (remote) places. In remote sensing, the sensors are not in direct contact with the objects or events being observed. [...]
[...] Although the atmosphere is practically transparent to x-rays and gamma rays, these radiations are not normally used in remote sensing of the earth. Optical and Infrared Remote Sensing In Optical Remote Sensing, optical sensors detect solar radiation reflected or scattered from the earth, forming images resembling photographs taken by a camera high up in space. The wavelength region usually extends from the visible and near infrared (commonly abbreviated as VNIR) to the short-wave infrared (SWIR). Different materials such as water, soil, vegetation, buildings and roads reflect visible and infrared light in different ways. [...]
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