Wil Blouin's Advanced Remote Sensing Portfolio

Goals and background: The goal of this lab was to familiarize students with specific procedures associated with radar remote sensing images. The specific functions that were practiced were noise reduction (salt and pepper effect reduction) through speckle filtering, spectral and spatial enhancement, multi-sensor fusion, texture analysis, polarimetric processing, slant-range to ground-range conversion. Methods: Part 1 Section 1: Speckle suppression 25 m spatial resolution satellite (microwave) L-band remotely sensed images from the Shuttle Imaging Radar (SIR-A) experiment of the Lop Nor Lake in the Xinjiang Province of China were brought into ERDAS Imagine. The area includes a former lake bed with a basin area and also a cliff overlooking that basin. Figure 1 shows a regular oblique aerial image of the area found on Wikipedia. Figure 1: Oblique aerial imagery of Lop Nor Lake Speckle reduction was used to improve clarity of this image, this was found in the Utilities folder...

Goals and Background: In this lab hyperspectral data was introduced. The goal of the lab was to become familiar with various functions and procedures associated with this type of data. Hyperspectral data was atmospherically corrected using the FLAASH radiative transfer code method, hyperspectral signatures were plotted and compared to sample signatures, hyperspectral data was animated to show all bands, hyperspectral data was used in combination with various indecies to produce vegetation analysis data, and hyperspectral data was corrected for noise. Methods: Part 1 Section 1: Plotting hyperspectral signatures  An JPL-calibrated AVIRIS image including 50 bands from 1.99 to 2.48 µm was brought into ENVI, and provided regions of interest of different minerals were opened after displaying the 183, 193, and 207 bands in RGB. Histograms for these ROIs were then opened and compared, paying special attention to features of the plots that could be used to identify one mineral from ...