pi-calibration
pi-calibration


Author Comment Last activity Moderation
stoft "Ok, the project concepts are taking shape which always prompts more thoughts. 1) By 2D mapping the light spectrum and relative intensity, you will..." | Read more » over 5 years ago
warren "Hi! I think the question of rolling shutter might deserve it's own question posted, to really dig into - it's a great question! One thought I had w..." | Read more » over 5 years ago
jenjimah "I was just reading on the pi website about the rolling shutter and I was wrong about the global shutter (it said only cameras with physical shutter..." | Read more » over 5 years ago
jenjimah "So I was reading about minimum exposure time of the Pi cameras and learned that it uses something called a "rolling shutter", which means it reads ..." | Read more » over 5 years ago
jenjimah " Yes that's exactly what I intend to do with the sun. Given sensor stability, and no shifts or changes in the spectrometer's build, calibration wou..." | Read more » over 5 years ago
stoft "A few more thoughts... On absolute 'average' intensity - You could use a Solux source (at fixed distance and known orientation) as a transfer stan..." | Read more » over 5 years ago
stoft " Ah, I've seen the curve on the web but it was not attributed to the specific sensor. It's helpful to now have that information. It looks like the ..." | Read more » over 5 years ago
jenjimah " Hi Dave, I just heard back from Sony regarding the IMX219 Sensor response. Here's the pdf and a screenshot: IMX219_Spectrum.pdf Although it doe..." | Read more » over 5 years ago
stoft " Jasmin, glad my previous notes were helpful. I did find one plot for the IMX219, but it was not from Sony and only covered to 700nm. The IMX265 c..." | Read more » over 5 years ago
jenjimah " Hi Dave, I looked at some of your posts before writing this one, actually! Your work is super helpful. I also couldn't find IR data from the Sony..." | Read more » over 5 years ago
stoft "Interesting project. I did not readily find spectral response curves from Sony on the IMX219 sensor though others in that family of devices appear..." | Read more » over 5 years ago
jenjimah "Hi Warren, thanks! I'll definitely try to document my process well as it comes along. I have a lot of motivation to get this going because I want t..." | Read more » over 5 years ago
warren " This is really cool! We'd love to see build photos as you go. We're also really interested in lighting setups and would love to see more documenta..." | Read more » over 5 years ago
xose "@xose awards a barnstar to MaggPi for their awesome contribution! " | Read more » over 6 years ago
xose "Awesome!! " | Read more » over 6 years ago
icarito "Hi @jywarren ! The documentation you are looking for is at here. The actual build script is at https://github.com/publiclab/image-builder-rpi/ I..." | Read more » over 6 years ago
jywarren "Very cool!!!  Hi @icarito, would you be able to point maggpi at the instructions for generating a virtual-pi image for this setup? On Wed, Aug 8,..." | Read more » over 6 years ago