Rene H.J. Heim

4 Questions 9 Answers 0 Followers

Questions related from Rene H.J. Heim

How to sample maize leaves and transporting them for specific leaf area measurements?

Dear RG community, I would like to sample (cut-off) maize leaves in the field and transport them to the lab for SLA (specific leaf area) measurements. After a brief literature review, I could not...

19 August 2020 6,230 4 View

How to find and extract a homogenous (uniform) area of pixel values in an image?

Dear RG Community, I am currently working with thermal images of natural scenes. Throughout the scene I positioned large artificial targets that are painted black, grey and white. I would like...

13 November 2019 3,903 13 View

Always OOB sampling in R caret package when using random forests?

Dear RG-community, I am curious how exactly the training process for a random forest model works when using the caret package in R. For the training process (trainControl()) we got the option to...

29 May 2018 6,726 4 View

How to handle zero offset in spectral reflectance data?

Dear RG-Community, for my PhD, I asked a drone company to capture multispectral imagery from a lemon myrtle plantation. Based on this imagery I defined different vegetation classes (Treated,...

22 May 2018 7,562 1 View