Performing stand counts using multispectral data and index thresholding in QGIS

[@hesamossanloo]

Thank you a lot. That was very informative and helpful. Please do more tutorials about using deep learning to count trees and identify species, height, etc.

[@appymp]

This was a great tutorial, thank you! I wonder if the automated workflow you spoke about in the end of the video has been released yet?

[@amroal-zoubi2804]

Great explanation! Very helpful. Thanks!

[@edujacque]

Great video! May be a little faster but super usefuly. Still wondering about your raster calculation in min 4:50 of the video. ¿?

[@MicaSense]

Hi Eduardo, what is your specific question? Please send us an email to [e-mail] so we can further assist you :)

[@braddock149]

Well done!

[@lukasspeckhardt1524]

Great video! Super helpful and well explained. From where did you source your data? Thanks!

[@MicaSense]

Hi Lukas, We used a data set we captured with one of our sensors for this video tutorial. If you are looking for sample data sets to use in QGIS, I suggest you visit our website, and under products, you'll find an option for Sample Datasets; pick the one from the sensor you would like to test out. micasense.com/ If you have any further questions, please get in touch with our support team at [e-mail]

[@dalerobberts6793]

Hi Lukas, when I try and apply the filtered layer using sieve and a threshold of 5 I just get a white box with a black border. The entire area where the fine filtered area is just turns to a white block. I have copied your methods completely and tried it a number of times. Any idea why it is doing this. QGIS vs 2.4.1

[@shalen5256]

What are the specs of your computer? The processes seem very fast for such large rasters.

[@GuterWaldschrat]

4:50 What character is placed between the brackets? (NIR >= 6000) ??? (osavi > 0.88) != 0 = 1 Thanks for help 😊

[@avexdronesagricolas3549]

It's *

[@zj7611]

Hi, I have raw datas of micasense camera and get them processed using pix4d mapper, using your method which data should I use? I have blue, green, ndvi, nir, red & red edge here.

[@larsejderud4937]

Would this methodology work to distinguish different tree spiecies from each other in a more dense stand?

[@MicaSense]

Yes, it would

[@dalerobberts6793]

Hi @Micasense when I try and apply the filtered layer using sieve and a threshold of 5 I just get a white box with a black border. The entire area where the fine filtered area is just turns to a white block. I have copied your methods completely and tried it a number of times. Any idea why it is doing this. QGIS vs 2.4.1

[@MicaSense]

Hi Dale! Thanks for reaching out with your concern about filtered layers not working properly. Please get in touch with our support team so we can take a closer look at your situation. They can be reached here: support.micasense.com/hc/en-us/requests/new

[@soundoftensuns9802]

Hi, try seting your min =0 and max =1 to your sieve after creating it

[@dalerobberts6793]

@@soundoftensuns9802 Hi, happy new year. Many thanks, will give that a try and see how it goes. Appreciate your feedback.

[@markus10882]

Can you please share the formula you've used? eg. osavi etc...

[@MicaSense]

We used the typical osavi formula: (NIR - red) / (NIR + red + L) * (1 + L) L = 0.16

[@bvegas]

@@MicaSense Actually that formula was not used to compute OSAVI in this demo. Only (NIR - R)/(NIR + R) was used.

[@marlonfgj]

Genial 👍👍