| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| claerity | " The pandemic has changed our way of working. Most of us work with common web conferencing software like Google Meet, Microsoft Teams, and Zoom to..." | Read more » | over 2 years ago | |||
| dangalgamesonline | "thank for sharing this post " | Read more » | about 3 years ago | |||
| stoft | "@Warren, thanks for the suggestions. Take a look (above) at the two new plots which replace the one(s) you referenced. You're right, the new ones m..." | Read more » | over 8 years ago | |||
| warren | "Great post! I love how you so clearly stated some of the conclusions. A few thoughts: maybe I missed this, but to @viechdokter's comment, are th..." | Read more » | over 8 years ago | |||
| stoft | "Or, they are all 'bad' (noisy) to some degree ;-) The sharpness of the peak is still mostly a factor of slit, mechanical rigidity, being light-tigh..." | Read more » | over 8 years ago | |||
| viechdokter | "Looks like at least there are no "bad" pixels as they all show about the same amount of noise. The time averaging seems to achieve a very sharp-pe..." | Read more » | over 8 years ago | |||
| stoft | "Actually, you need several additional pieces for SWB: 1) average 3-5 parallel lines, 2) monitor stability and take data until it IS stable or times..." | Read more » | over 8 years ago | |||
| stoft | "Ideally, the user would select a "stable" ('smooth' or 'broad peak') region to monitor and then the software would take samples (and average) while..." | Read more » | over 8 years ago | |||
| warren | "Excellent; so we'll think about timeframe plus # of samples. I think we could prompt people in the interface to "ensure stable reading" during a fe..." | Read more » | over 8 years ago | |||
| stoft | "Yes, I'd agree that time averaging would help and, if possible, it sould be the default to reduce this noise component. I do not have 30 fps data, ..." | Read more » | over 8 years ago | |||
| warren | "Great analysis. Based on this, I wonder if we should more strongly encourage people to do live capturing, and to have a time averaging default sett..." | Read more » | over 8 years ago | |||
| warren | "Followup; this is kind of neat; this graph shows the amount of noise removed: " | Read more » | almost 9 years ago | |||
| stoft | "Yes, the flexibility is good and yes, that plot is better because it doesn't alter what is real and clearly shows the effect of just cutting off th..." | Read more » | almost 9 years ago | |||
| warren | "Well, i'm not saying this is an important step in any particular analysis -- just that you can do operations like this easily with the transform to..." | Read more » | almost 9 years ago | |||
| stoft | "Ah yes, the new plots are there. However, the entire shape of the spectra has been shifted so the ratios between peaks are thus different from the ..." | Read more » | almost 9 years ago | |||
| warren | "Fetching multiple pixel rows is possible with the spectrum.imgToJSON() method in the new v2 API: https://github.com/publiclab/spectral-workbench/b..." | Read more » | almost 9 years ago | |||
| warren | "As to time-averaging, I think it'd be pretty easy to implement, but would ONLY work if a spectrum is really vertically aligned -- so no uploaded sp..." | Read more » | almost 9 years ago | |||
| warren | "Hi, Dave - try reloading the page - i briefly edited the spectrum while chasing a bug, so you may have seen it in the wrong state -- tell me what y..." | Read more » | almost 9 years ago | |||
| stoft | "I'm confused by the two plots. The 'noisy' plot doesn't have the signal so I'm guessing it's an average of what is left after chopping off anything..." | Read more » | almost 9 years ago | |||
| warren | "Note: If this looks good, I can package it up as a "noise reduction" tool in its own right -- the Transform operation may enable us to quickly crea..." | Read more » | almost 9 years ago |