Images on Google Earth
Google Earth is a software that provides the user with a number of images like the images of the huge 3D buildings, Highways, roads, terrains, roads, streets, International borders, etc. Thus one can imagine the amount of data that is available with the Google Earth. But one may think of where this data comes from? How it is loaded on the Google Earth? Where do these images come from? How old are they? How are they processed? Etc etc..
There are a number of people who feel that the images of Google Earth come from the satellites. It is not only the satellite images that are used as a source for Google Earth. It is not only the satellite images but when there is a need to get a precise image of a particular location they take the air plane or hot air balloons to capture the view. They also take images from the kites. When images are captured through the air plane they are captured by attaching the cameras in the belly of the air plane.
The images are taken from a height of 15,000 to 30,000 feet above the surface of the earth. There are times when overlapped images are taken. The overlapped images are of great importance in Google Earth. This is because a single image sometimes does not make much sense. The overlapped images taken in parallel to the same plane can resolve some hidden queries about the location. The information if lost in one of the images are recovered from the overlapped image of the same area. Due to many overlapped images the quality of final image is improved.
There are a number of there are some limitations while taking images from the earth. This is because the surface of the earth is not even. There are a number of ups an downs thus when image is taken from over a height then the exact image is never obtained. In this case the overlapped images can help to resolve the complications.
To obtain the images is not the only work of Google Earth. The images that are obtained from a number of sources are to be processed properly. The process is improved only obtaining the images from different sources is not sufficient. They are to be processed further.
There are a number of images that are taken out of these the best are separated. After that they are processed for improving the quality further. Out of the many images every image is studied and information from all the images is gathered. The final images are of a good quality. The images from the satellites are scanned from the scanner. The scanned images are in the digital form. They are furthered processed for quality like color balancing; warping, etc. At this time the resolution of the scanner is 1800 dots per inch.
After the images are made the other part is of information gathering. The data is collected from multiple sources. These sources include commercial providers, local government agencies, public domain collections, and private individuals, national and international governments. All this data is then uploaded on the Google Earth. Apart from all this Google Earth also helps the user by creating the history of events like the earthquake, volcanoes, etc. It also helps in showing the details such as the spread of diseases, epidemics, etc. The researchers can also get the required information from Google earth. Google Earth initially was considered only for enthusiasm but today Google Earth is considered as a source of information for all the scientists, researchers, etc.
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Tags: Google Earth Tricks
