Weather and drones

Theremino NDVI

Theremino NDVIImages NDVI (Normalized Difference Vegetation Index), show the health of vegetation in a false-color scale. Healthy vegetation reflects more infrared dry vegetation or ill. Why do you use a camera modified and then you process images with the application Theremino NDVI.

There are also commercial applications that perform this conversion, but they are costly and complex. Alternatively you could use Infragram, but it is only usable on the Web and inflexible.


Modify a camera

Some cameras are more suitable than others, but typically all business digital cameras can fit. L ’ the operation more difficult is to remove the infrared filter, located in the Interior of ’ goal. Then you add a blue filter in front of the camera, or on the inside, and the transformation is over.

I normally use a blue filter that lets even infrared and you get images that contain infra-red and blue. Infrared are stored in the red channel, the blue in the blue channel and the Green is not used.

According to our tests a good filter is on “Rosco Night Blue # 74”, that is a cheap filter jelly and has a good answer. But there are many other filters, Some even very expensive. Some authors prefer Red filters.

The details of these changes are discussed in many articles in Internet. Search “NDVI room”, “Infrablue filters”, “Rosco infrared”, “NDVI filters” etc…

The following links are some examples, among the many sites on cameras
http://diydrones.com/profiles/blogs/photosynthesis-assessments
http://www.instructables.com/id/Turn-to-Canon-camera-into-a-Plant-Health-Analyzer-u
https://publiclab.org/notes/cfastie/04-26-2014/mobius-ndvi

And these are sites that speak of the filters
https://www.rosco.com/filters/supergel.cfm
http://purposefulscience.blogspot.it/2014/09/comparing-rosco-infrablue-filters-2007.html
https://publiclab.org/notes/nedhorning/10-30-2013/red-vs-blue-filters-for-ndvi
https://publiclab.org/notes/nedhorning/11-01-2013/why-a-red-filter-should-work-well-for-ndvi


Features of Theremino NDVI

  • With the Min and Max controls adapts the operation even for images with incorrect white balance or taken in non-optimal lighting conditions.
  • The function “Histogram” helps you find the best setting.
  • By double clicking on the ’ histogram automatically adjust Min and Max.
  • By double clicking on the images you send to the default image program.
  • With button “Multiple NDVI” You can process all the images in a folder and its subfolders.
  • With the colour button you can use both the classic blue filters, Red filters.
  • Choosing between a dozen false colour scales, You can enhance the best features of the vegetation.
  • You can create new false-colour images with any editing program (such as Paint). False-color images must be in the folder “FalseColors_Scales” and normally they are PNG from 256 x 32 pixels (Theremino NDVI accepts them in other formats).

Notes for versions
Version 1.5:
First published version.
Version 1.6: Fixed an error in converting NDVI with width of image other than a multiple of four. Correct the TrackBar to work even with the new mouse, with micrometric wheel (without shots).
Version 2.4: Added l ’ histogram and many other functions. Read the “Features” above.
Version 2.5: Now the images are converted to 24 bit with horizontal size not a multiple of 4.

Download Theremino NDVI – Version 2.5
Theremino_NDVI_V 2.5
2.4 Theremino_NDVI_V _WithSources (complete design for programmers)
Version for all Windows in 32 and 64 bit. For Raspberry Pi, Linux, Android and OSX, read the installation notes.

 

Theremino drone pilot Log (Uav Pilot Log)

Theremino Uav Pilot Log

UAV logs (Unmanned Aerial Vehicles) are lengthy or complex file. These files are produced by Open Source software DroneCode or other commercial software. Some log lines, scattered among thousands of other information, contain the data that the professional driver must copy in his “Logbook” After every flight. Doing this manually is difficult and slow because some of the data is coded and almost impossible to read for a human being.

With the application Theremino UavPilotLog update the pilot staff Loogbook becomes a quick and simple operation.

The data that is extracted and added to the Logbook staff are:

  • Year month and day
  • Type of UAV
  • Serial number
  • Coordinates of takeoff
  • Departure time
  • Landing coordinates
  • Time of landing
  • Pilot's name
  • Annotations
  • Type of mission
  • Minutes and seconds of flight

If the Log contains more flights are added multiple rows to the Logbook.


Maps

With a click of the mouse you can also view the location on Google Maps or Google Earth. If the Log contains more flights you can choose the coordinates by clicking with the mouse on the lines of Latitude and Longitude of each flight.

Theremino UavPilotLog Google Map Theremino UavPilotLog Google Earth


Versions and downloads

Notes for versions
Version 1.6:
First published version.

Download Theremino UavPilotLog – Version 1.6
Theremino_UavPilotLog_V 1.6
Theremino_UavPilotLog_V 1.6 _WithSources (complete design for programmers)
Version for all Windows in 32 and 64 bit. For Raspberry Pi, Linux, Android and OSX, read the installation notes.


Get the system modules

The theremino team only deals with research and does not sell hardware. The system is completely "Freeware", "Open Source", "Not for Profit" and "DIY", but there are manufacturers who can provide modules assembled and tested at a great price. One could hardly self-build them spending less. A list of manufacturers on this page: www.theremino.com/contacts/producers


Donations

The source code of our software does not contain copyright notices, author names and links to our site, so you can make every use, without limitation of any kind. We do not require you to specify the original source or our site but if you are happy with our software remember us and make known this site to your friends. Any donations, even small, are very welcome and can help us to maintain the software “free” and to produce always new applications.


Legal notice

ITALIANO – HARDWARE: NEI LIMITI PREVISTI DALLA LEGGE il sistema Theremino VIENE FORNITO “COSÌ COM’È”, E NON RILASCIA GARANZIA ESPLICITA O IMPLICITA, RISPETTO ALLA SUA FUNZIONALITA’, OPERATIVITA’, O USO, INCLUSE, SENZA LIMITAZIONE, LE GARANZIE IMPLICITE DI COMMERCIABILITÀ, IDONEITÀ PER UNO SCOPO PARTICOLARE O VIOLAZIONE. SI DECLINANO ESPRESSAMENTE OGNI RESPONSABILITÀ PER DANNI DIRETTI, INDIRETTI, CONSEQUENZIALI, INCIDENTALI O SPECIALI, INCLUSI, SENZA LIMITAZIONI, MANCATI GUADAGNI, PERDITE DI PROFITTI, PERDITE DERIVANTI DA INTERRUZIONE DI ATTIVITA’ O PERDITE DI DATI, INDIPENDENTEMENTE DALLA FORMA DI AZIONE O TEORIA LEGALE SOTTO CUI LA RESPONSABILITA’ VIENE ASSERITA, ANCHE SE NON INFORMATI DELLA POSSIBILITA’ O RISCHIO DI TALI DANNI.
ITALIANO – SOFTWARE: IL SOFTWARE del sistema Theremino E’ UN SOFTWARE LIBERO: E’ POSSIBILE RIDISTRIBUIRLO E/O MODIFICARLO SECONDO I TERMINI DELLA LICENZA “GNU General Public License” COME PUBBLICATA DALLA “Free Software Foundation”, NELLA VERSIONE 3, O QUALSIASI VERSIONE SUCCESSIVA. È POSSIBILE OTTENERE UNA COPIA DELLA LICENZA “GNU General Public License” DA: http://www.gnu.org/licenses
ENGLISH – HARDWARE: THE PRODUCT Theremino System IS PROVIDED TO YOU “AS IT IS”, AND WE MAKE NO EXPRESS OR IMPLIED WARRANTIES WHATSOEVER WITH RESPECT TO ITS FUNCTIONALITY, OPERABILITY, OR USE, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR INFRINGEMENT. WE EXPRESSLY DISCLAIM ANY LIABILITY WHATSOEVER FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST REVENUES, LOST PROFITS, LOSSES RESULTING FROM BUSINESS INTERRUPTION OR LOSS OF DATA, REGARDLESS OF THE FORM OF ACTION OR LEGAL THEORY UNDER WHICH THE LIABILITY MAY BE ASSERTED, EVEN IF NOT ADVISED OF THE POSSIBILITY OR LIKELIHOOD OF SUCH DAMAGES.
ENGLISH – SOFTWARE: THE Theremino System SOFTWARE IS FREE SOFTWARE: YOU CAN REDISTRIBUTE IT AND/OR MODIFY IT UNDER THE TERMS OF THE “GNU General Public License” AS PUBLISHED BY THE “Free Software Foundation”, EITHER VERSION 3 OF THE LICENSE, OR ANY LATER VERSION. YOU CAN GET A COPY OF THE “GNU General Public License” FROM: http://www.gnu.org/licenses

Comments are closed.