Tuesday, July 27, 2010

Week 5: LIDAR Image of Pensacola, FL

Below is a re-worked LIDAR image of an area in Pensacola, FL.

Saturday, July 17, 2010

Week 4: Remote Sensing - Classification

Attached are two maps of the Germantown, MD images after recoding and reclassification from an original image provided by Ms. Trisha Holtzclaw. Histogram values that resulted from the reclassification step are included in the images' legends.





Below is an explanation of the reason that there are two submitted maps. One presents the appropriate RGB 5,4,3 color code...the other shows the classes grouped based on similarity (i.e. all urban/residential grouped as one)...however, the colors were manually altered because the RGB 5,4,3 was not informative and did not distinguish dissimilar land characteristics.

Monday, July 12, 2010

Week 3: Remote Sensing (Orthorectification)

This week's map presents an orthorectified image of Pensacola, Florida. The process of orthorectification was based off of the coordinates of a USGS Quad topo map of Pensacola. Included is a copy of the table that shows the RMSE (root mean square error) associated with this calibration. The total RMSE was 0.54 pixels.

ERDAS is a ridiculously cryptic software...there is NO support for the user of the software, and for those who do not have the most current operating system, XPS is not a user-friendly file format.




Total RMSE = 0.54 pixels

Sunday, July 4, 2010

Week 2: Remote Sensing (Bands Analysis)

The Week 2 laboratory assignment involved further investigation of the tools of band analysis and selection. Three maps were generated that related to specific pixel values. In this case they corresponded to a lake, a limestone quarry, and an estuary. Click the links to view these maps.

Map of lake

Map of limestone quarry filled with water

Map of shallow estuary showing basin bottom

Thursday, July 1, 2010

Week 1: Remote Sensing - Intro to ERDAS

Attached is a link to a map of the runways at the Air Force Base in Pensacola, Florida. The map was produced using the ERDAS Imagine 2010 software.

Click here to view map