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visits member for 2 years, 2 months
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I am first and foremost an ecologist working to promote the integrity, stability and beauty of the biotic community. I enjoy finding solutions to problems on this site that I otherwise would not have exposure to in my day-to-day work.

Specialties: Remote sensing, GIS, spatial statistics, big data, wildlife conservation, and landscape ecology. My work focuses mainly on multispectral and Lidar remote sensing for assessing vegetation structure and composition.

"The feed-forward back-propagation multi-layer perceptron (MLP) is the type of neural network most commonly encountered in remote sensing..." Atkinson and Tatnall, 2010 International Journal of Remote Sensing


15h
comment Automatic Lineament Extraction from satellite images using ENVI?
Welcome to the site. There is a lot of potential in this question, however, you need to add more details to help make your question a good fit for this forum. Please use the help center as a guide to asking good questions: gis.stackexchange.com/help/how-to-ask
16h
reviewed Approve suggested edit on Use Dojo to load modularized widget config files
16h
reviewed No Action Needed Rename LAS Files - Python
16h
reviewed Approve suggested edit on Proxy.cgi for OpenLayers reading from GeoRSS but not from WFS
16h
reviewed Leave Closed How to convert LAS file to ASCII for DSM in SAGA GIS?
16h
reviewed Leave Open Rename LAS Files - Python
22h
reviewed Leave Closed How to open a url by clicking on map?
22h
answered Is it possible, and if so how, to effectively classify vegetation types using false near infra red imagery?
23h
revised Is it possible, and if so how, to effectively classify vegetation types using false near infra red imagery?
Added a few helpful tags
23h
comment Comparing data from two different time periods
You can also accomplish this in the open-source QGIS using the heatmap plugin: docs.qgis.org/2.0/en/docs/user_manual/plugins/…
23h
comment Is it possible, and if so how, to effectively classify vegetation types using false near infra red imagery?
What type of imagery are you using (i.e. sensor & platform)? Also what specific bands & wavelengths are you working with?
1d
comment Cloud Removal from Landsat Data
Are you aware of the Landsat 8 Quality Assessment Band? landsat.usgs.gov/L8QualityAssessmentBand.php
1d
revised Cloud Removal from Landsat Data
edited tags
1d
reviewed Leave Open Create circles around a point on a map measuring the radius in hours
1d
reviewed No Action Needed Using QGIS to create a table of correspondence between two area layers
1d
reviewed Approve suggested edit on Loading SQLite extensions in QGIS
1d
reviewed No Action Needed Error getting ESRI Shapefile driver OGR in C++
1d
comment Raster diff: how to check if images have identical values?
@whuber Regarding the NoData handling, RasterToNumPyArray assigns by default the input raster's NoData value to the array. The user can specify a different value, although that would not apply in Matt's case. Regarding the speed, It took 4.5 seconds for the script to compare 2 4-bit rasters with 6210 columns and 7650 rows (DOQQ extent). I have not compared the method to any zonal summaries.
1d
revised Raster diff: how to check if images have identical values?
Changed code
1d
comment Raster diff: how to check if images have identical values?
Good points @whuber. I made a quick adjustment to the script that should take into account the shape and elements. I will check the points you brought up and report the findings.