| 00:01 | FergusL | back here Bertl ?
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| 00:11 | Bertl | kind of around, what's up?
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| 00:13 | FergusL | don't remember what I wanted to ask...
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| 00:13 | Bertl | well, next time don't ask to ask, just ask ... I'll answer when I read up on it :)
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| 00:13 | FergusL | ha yes, just to check, are we using 16 LVDS channels, not 32 ? I'm sorry if that crucially misses context
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| 00:14 | Bertl | we are using 32, 16 on each side
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| 00:14 | FergusL | Good
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| 00:14 | FergusL | wanted to check the value I get are correct
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| 00:15 | FergusL | and... thanks !
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| 00:15 | FergusL | and you, what's up ?
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| 00:17 | Bertl | currently fixing my UPS
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| 01:04 | Bertl | off to bed now .. have a good one everyone!
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| 08:44 | S3bastian | good morning
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| 14:28 | Topic | apertus° - open source cinema | www.apertus.org | Currently Hot: Axiom Alpha Development http://axiom.apertus.org/ | IRC Logs available at: http://irc.apertus.org
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| 14:28 | se6astian | has set the topic |
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| 15:01 | S3bastian | time to go home
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| 17:47 | gcolburn | hello
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| 18:18 | se6astian | hi Gabe!
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| 18:19 | gcolburn | hi!
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| 18:19 | gcolburn | just created a new matrix with one of the images you took last week
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| 18:19 | gcolburn | sorry its taken me a bit to get around to it
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| 18:19 | gcolburn | the average error was 10.9%
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| 18:21 | gcolburn | and that's with all the FPN still in the images. I bet once we correct that the average error goes down
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| 18:21 | gcolburn | so I think the new charts you captured did make an improvement
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| 18:26 | se6astian | thats great!
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| 18:27 | gcolburn | what are the main tasks being worked on right now?
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| 18:27 | gcolburn | streaming to hdmi and noise reduction?
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| 18:28 | se6astian | I work on researching/reverse engineering what some sensor registers do
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| 18:28 | se6astian | and making interaction with the camera easier
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| 18:28 | se6astian | like I created a web based GUI running on the camera
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| 18:28 | gcolburn | oh cool
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| 18:29 | gcolburn | are you referring to registers that aren't documented?
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| 18:29 | se6astian | Herbert is working on the nois reduction atm AFAIC
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| 18:29 | se6astian | yes
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| 18:29 | gcolburn | interesting
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| 18:29 | gcolburn | what interesting registers features have you found?
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| 18:29 | se6astian | cmosis told us for example that on-sensor coloumn and pixel FPN correction can be turned off
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| 18:29 | se6astian | https://wiki.apertus.org/index.php?title=CMV12000#Register_122
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| 18:30 | gcolburn | ah. very cool
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| 18:31 | gcolburn | I noticed the Truesense CMOS sensors had that, so I wondered about the CMV12000
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| 18:32 | gcolburn | have you tried captures with it yet?
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| 18:32 | se6astian | yes, see https://wiki.apertus.org/index.php?title=CMV12000#Register_122
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| 18:32 | se6astian | its not documented anywhere in the datasheet
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| 18:34 | gcolburn | okay. I didn't fully understand the setup for the shot in that histogram, so I wasn't sure how it translated into visible image quality
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| 18:34 | se6astian | its a moderately lit white wall
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| 18:34 | se6astian | dark green shows the "normal" image
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| 18:35 | se6astian | then the other colors show the same image with coloum based FPN turned off, with pixel based FPN turned off or with both options turned off
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| 18:36 | gcolburn | wow, quite the histogram difference
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| 18:37 | gcolburn | so has the column an pixel FPN reduction been on by default in all our previous captures?
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| 18:37 | se6astian | yes
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| 18:39 | Bertl | well, unless the histogram was not updated, it shows a sensor defect/problem not the real situation
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| 18:40 | Bertl | s/was not/was/
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| 18:41 | Bertl | on the raws there is unusual noise in a certain bank (looks like LVDS training problems, but the test image is transmitted perfectly)
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| 18:42 | Bertl | so I wouldn't jump to conclusions yet
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| 18:42 | gcolburn | okay
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| 18:42 | gcolburn | it'll be nice when eventually the FPN is substantially less :)
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| 18:47 | se6astian | how are your current efforts with FPN correction going Bertl?
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| 18:50 | Bertl | slowly :)
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| 18:51 | Bertl | haven't had too much time to spend on, but I have a few ideas
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| 19:31 | guesst | Bertl: what about hot pixels? do you solve them / detect at runtime?
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| 19:35 | Bertl | interestingly we do not seem to have that many, so it would make sense to store them with the FPN correction
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| 19:35 | Bertl | dynamic detection/compensation would be an option but ATM I do not see a good reason for doing that
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| 19:35 | guesst | can you tell they are not solved on chip? have you compared the test/final sensor?
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| 19:39 | Bertl | interestingly, as we found out recently, the chip does/can do some internal column/row compensation, but cmosis doesn't like to share information easily
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| 19:40 | guesst | how?
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| 19:41 | Bertl | how we found out or how it works?
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| 19:41 | guesst | yes
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| 19:41 | Bertl | well, we found out in discussion with cmosis, and we don't know how it works (yet)
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| 21:15 | Bertl | off for a nap .. bbl
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| 21:27 | se6astian | good night!
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