funkycbj 0 research notes and 0 wiki edits | Joined about 6 years ago

I'm interested in PL because it facilitates development of low-cost alternatives for applied research. I am conducting agricultural research for assessing crop nutrient status and light-use efficiency.

I have experience using leaf biochemistry and canopy radiative transfer models (ProSAIL), radiometric field equipment (i.e. spectroradiometers, line and point quantum sensors, etc.), active multispectral sensors (i.e. CropCircle), passive multispectral sensors (i.e. TetraCam), and mapping/remote sensing software. A lot of the research I am doing involves the development of vegetation indices, crop area estimation, and aspects of how EMR can be used to study crop physiology. MSc: GIS PhD: Geography Post-Doc: USDA Research Service

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"I just used a StellarNet spectrometer to find the transmittance of hot filters from the Canon A2200 & A2500. Both hot filters rapidly fall off ..." | Read more » about 4 years ago
"A blue filter will give better results if red or yellow flowers are present because the flower reflectance mixes with the leaf reflectance and defl..." | Read more » about 5 years ago
"Just so you know, 720nm is in the "red edge" region so you're not computing NDVI. You are computing the Normalized Difference Red Edge Index (NDRE). " | Read more » over 5 years ago
"Light is transmitted but it is diffusely scattered past a certain depth, which seems to be ~7mm. The minimum thickness increases with the size of ..." | Read more » over 5 years ago
"Krylon extra flat black spray paint is diffuse and spectrally flat across the vis-nir. A small sheet of teflon isn't too expensive and works great ..." | Read more » over 5 years ago
"You want to capture enough spectral variation between different surface features. If you only have 2 bands but have several classes then you may ge..." | Read more » over 5 years ago
"If you take pictures at higher angles (more perpendicular and less oblique) you may achieve a more Lambertian response. Dealing more directly with ..." | Read more » over 5 years ago
"I noticed that you are capturing your test images from an oblique angle. Bidirectional reflectance at that angle may be creating "hot spots" in you..." | Read more » over 5 years ago
"A blue filter should be an acceptable alternative to a red filter when measuring vegetation if the spectral response of the blue filter is sensitiv..." | Read more » over 5 years ago


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