particle-imaging
particle-imaging


Author Comment Last activity Moderation
amirberAgain "Another ask /suggestion : place particles on a polarized film sheet illuminated from below, image with a cross polarizer to remove the background. " | Read more » about 6 years ago
warren "Got some good feedback from @maxliboiron from Newfoundland and http://civiclaboratory.nl -- @maxliboirox: You can't. Not with any accuracy. A few ..." | Read more » about 6 years ago
tech4gt " More info here " | Read more » about 6 years ago
amirberAgain "Another ask/ suggestion would be to image using black/uv light, most plastics would show strong signs of fluorescence which might help descriminati..." | Read more » about 6 years ago
jlev "Thanks @amirberAgain. I've contacted my friend at Greenpeace and asked him for some more images with less overlap and a wider array of lighting con..." | Read more » about 6 years ago
amirberAgain "Code: https://drive.google.com/file/d/1HDekiO0l9DEmSBmbWBVOEEPvSkys6AUa/view?usp=sharing " | Read more » about 6 years ago
amirberAgain "I tried to apply the same simplistic approach as was in the particle image. Not sure why, but Sobel didn't work, but Canny did. Other than that - t..." | Read more » about 6 years ago
amirberAgain "Could you upload a few more image samples? Is it possible to ask that the samples be illuminated from a wide light source such that shade will be k..." | Read more » about 6 years ago
warren "@amirberAgain - a friend just posted this question, and I'm curious if you think any of the steps you wrote out are applicable to that kind of anal..." | Read more » about 6 years ago
warren "What might be the processing steps, to try to break this down? Could they look like some of the steps @SimonPyle, @AmberWise, @damarquis and @amirb..." | Read more » about 6 years ago
warren "Ooh! @maxliboiron maybe you know something about this? I have to dig through some old emails to find someone else who's mentioned this to me too. " | Read more » about 6 years ago
amirberAgain "For now, my code and iamge excerpt can be found here, just untill I figure out how to have two git users on my machine, https://drive.google.com/dr..." | Read more » about 6 years ago
warren "Oh yes please -- maybe make a new repository for now? Or use http://gist.github.com if it's just a few files. Could you link to it from here? I th..." | Read more » about 6 years ago
amirberAgain "In the comment section of the post linked below there is a link to a large cohort of images, thou I'm not sure if they represent airborne dust part..." | Read more » about 6 years ago
warren "Hi, I'm trying to think how we can support and connect this work to the microscope team more -- could we post a call for images to try to run throu..." | Read more » about 6 years ago
amirberAgain "This sounds very interesting, but I don't have any raw data. Maybe join the Tue. open call? I think this can be a great study case for ML/DL. Googl..." | Read more » about 6 years ago
dakoller "Hi, some days ago I talked about this topic with a friend of mine... the usecase is ongoing pollen analysis. Do you know whether there are pollen ..." | Read more » about 6 years ago
Tinashe "You don't state what happens with the 40 images taken. Are they stacked together for analysis or they are analysed individually. " | Read more » almost 7 years ago
richardbowman "Hello, "Cambridge" here (though I've actually moved now). You're right, a laser diode would certainly get rid of the chromatic issues. I suspect ..." | Read more » almost 7 years ago
mathew "That is an interesting question. I think the laser would get rid of chromatic aberration-- its a single frequency of light-- but I'm not sure that..." | Read more » about 7 years ago
marlokeno "Hi, @mathew and @SimonPyle - Terrific work! After seeing the demonstration mathew gave at the barnraising in November '16, and then looking at Ca..." | Read more » about 7 years ago
SimonPyle "@warren: The link above was the most recent version, though I just added a GNU GPLv3 license and created a github repository: https://github.com/si..." | Read more » about 7 years ago
mathew "There is a large folder of sample image sets avaialble. I put a smaller set together here: https://publiclab.org/notes/mathew/10-07-2016/sizing-ima..." | Read more » about 7 years ago
warren "Is there any sample input/output sets from going through this process, manually or automatically? I was thinking that a good test/spec might inclu..." | Read more » about 7 years ago