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Showing posts from December, 2017

Lab 8: Spectral Signature Analysis and Resource Monitoring

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Goals: The goal for this lab is to become familiar with measuring, collecting, and interpreting spectral reluctance and signatures. The other goal for this lab is to learn how to monitor resources with NDVI and ferrous mineral monitoring. Methods: Part 1: The first part of this lab deals with spectral signatures. The first thing that is done, after a photo is loaded in to program, is to collect the spectral signatures for various land covers. This is done by identifying the land cover type desired in the image and creating a polygon around it. Next, select the supervised drop down and click the signature editor. Once this is open, the spectral signature for the area inside the polygon can be found. These step can then be repeated until all the desired land cover spectral signatures are found. Part 2: Section 1: The first section of the second part of this lab deals with calculating vegetation density using satellite images. This is done by using the desire satellite image...

Lab 7: Photogrammetry

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Goal: The goal for this lab was to become familiar with preforming photogrammetric tasks. Also, this lab is meant to understand the mathematics behind photogrammetry. The topics that this lab covers are scale calculation, relief displacement calculations, measuring features, to create stereoscopic images, and to preform rectification on satellite images. Methods: Part 1: Section 1: The first section of the first part of this lab is about finding the scale of the satellite image. For this section, an image was provided with two points marked on it. The real world distance between the points was given and the distance between the points needs to be found. Once this number is found, the real world distance and the distance on the image need to be converted to the same units. Then divide the screen distance by the real world distance. This is the scale of the image, 1 to the result. The second images scale needs to be calculated from the the focal length and the aircraft altitu...