- 2 replies
- 1,736 views
- Add Reply
- 1 reply
- 1,275 views
- Add Reply
- 0 replies
- 1,507 views
- Add Reply
- 1 reply
- 1,325 views
- Add Reply
- 0 replies
- 9,003 views
- Add Reply
Spectrometer in the fields - how to use it?
By mettus,
Hi!
I have partable usb-spectrometer with optical fiber (similar like ocean optics device) and plan to use it in the fields for getting soil and vegetation spectra.
I am planning to build spectral library with my area of intarest typical spectras and use it for hyperspectral data analysis (hyperion).
Please advice me, how to use it in the fields right way?
I have try to get spectras using 15x15cm white teflon card as reflectance reference (near 100% reflectance), but I see there is di
New satellite images for Agriculture research & applications
By Arhanghelul,
Good news for those who are interested in Agriculture research and applications.
Another constelation of small satellites will be lauch, starting 2016.
More detail here:
http://spacenews.com/silicon-valley-firms-join-forces-on-agricultural-imagery-venture/
how to get the probability value of a pixel during maximum likelihood classification in ERDAS imagine ?
By LAKSHMI,
I'm trying to do a fuzzy land cover classification using maximum likelihood classification. I need to get the probability of each pixel to fall in a particular class. Some equations have been formed based on gaussian distribution to calculate the fuzzy membership value corresponding to each pixel. To calculate this value each pixels are to be considered individually and substituted in the following equation: D = (X-M)^T * (cov)^-1 * (X-M) where X is a 4*1 matrix representing the DN for a particu
hyperspectral radiometric correction
By ahmed omar abd el aziz,
Dears Could any one help me to get radiometric correction parameter for hyperspectral images EO1 Hyperion ?
(SCAI) seed cell area index
By mahfoud,
Hello everyone,
I am working on risk. I have used an heuristic aproach and i've generated a susceptibility map of risk and i want to validate my map by comparing with the inventoried traininig sites. does anyone know how to use the (SCAI) seed cell area index or any other alternative?
Thanks
-
Forum Statistics
8.7k
Total Topics43.4k
Total Posts