| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| bgamari | "Jeff, it seems to me that real-time curvature correction shouldn't be so hard. Estimation of the observed curvature only needs to happen periodical..." | Read more » | over 10 years ago | |||
| warren | "Chrome camera switching partially working; need to debug on Chrome for Android though. Can you try it out? https://github.com/jywarren/spectral-wor..." | Read more » | over 10 years ago | |||
| stoft | "Jeff, I constructed a few more slotted filters which just bend a bit and fit in front of the smartphone slit. The camera focus difficulty limits th..." | Read more » | over 10 years ago | |||
| warren | "Huh, very strange that the comment is gone! No worries though... trying to make more time to code in the next week or so too. GSoC is energizing an..." | Read more » | over 10 years ago | |||
| stoft | "Yes, true. No slight intended. I edited my comment to note that 'broken' means only that the disconnect between the app and Chrome Beta is still th..." | Read more » | over 10 years ago | |||
| warren | "I think auto-focus varies from phone to phone... I haven't had an issue myself with that but it'd be good to know which phones suffer from rapid au..." | Read more » | over 10 years ago | |||
| stoft | "(original comment seems gone...) ...I commented that I did try a pattern but that the auto-focus for the default camera appeared to focus momentari..." | Read more » | over 10 years ago | |||
| warren | "Hmmm... could we put some kind of other fixed shape or something in the field of view that the focus would lock to, and that we could meter exposur..." | Read more » | over 10 years ago | |||
| stoft | "Ok, guess having the exposure default to max isn't too bad, but actually setting the exposure to max is better. I've seen evidence that the standar..." | Read more » | over 10 years ago | |||
| warren | "Actually it looks like there has been some progress: https://code.google.com/p/chromium/issues/detail?id=290161&q=camera%20selection%20android&..." | Read more » | over 10 years ago | |||
| warren | "BTW: SWB does not work with an S4 active android because it defaults to the front camera instead of the back and there does not appear to be a swit..." | Read more » | over 10 years ago | |||
| stoft | "Depends on what you want to monitor. If the whole spectrum is dynamically changing, then maybe not because the relationship between clipped peaks a..." | Read more » | over 10 years ago | |||
| warren | "scale to live capture I meant, computationally... could you do it in real-time, even on a mobile device? For curvature, I think this happens quit..." | Read more » | over 10 years ago | |||
| stoft | "Jeff, re: "...scale to live capture...". I'll have to guess that you mean observing spectral responses over time with the idea of generating a 'wat..." | Read more » | over 10 years ago | |||
| warren | "Couple other notes - curvature correction would be great and pretty consistent for still captures, but would it scale to live-capture... and would ..." | Read more » | over 10 years ago | |||
| warren | "Hey jay - this is a great post - it seems like your camera is just extremely sensitive and is being badly blown out (or clipped) by pointing your s..." | Read more » | over 10 years ago | |||
| cfastie | "Hi Jay, This is a great example of how important it is to get a good exposure on spectral photos. You have to hit it just right to get the most in..." | Read more » | over 10 years ago | |||
| stoft | "Yes, resolution is affected by slit width; though much less than the intensity change which is related to the square area. I'd had some success in ..." | Read more » | over 10 years ago | |||
| cfastie | "Would it work to have a constant width slit with an integrated neutral density gradient from 100% transmission at one end to something less than th..." | Read more » | over 10 years ago | |||
| stoft | "Pascal, Thanks. Hope my posted note on HDR2 is readable. Just a thought on the 'stepped-slit'. I constructed a number of them with the idea of for..." | Read more » | over 10 years ago | |||
| PascalW | "Jeff: I was pretty busy the last few days and have to admit I couldn't follow the discussion on Sreyanth's proposal to closely. But I have a long ..." | Read more » | over 10 years ago | |||
| JSummers | "OK. I should probably say that I don't know that our reproducibility problem stems from oxidation, but that is my best guess right now. We did so..." | Read more » | over 10 years ago | |||
| stoft | "Agreed, there is more than enough work here for two highly motivated contributors. On your HDR example above, two observations: I think there is s..." | Read more » | over 10 years ago | |||
| cfastie | "Pascal, These are some really good ideas you are proposing. I am very interested in multiple, bracketed exposures to get more dynamic range. This w..." | Read more » | over 10 years ago |