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#apertus IRC Channel Logs

2014/10/24

Timezone: UTC


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Bertl_zZ
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se6astian|away
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08:04
se6astian
good morning
08:08
Bertl_oO
morning se6astian!
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troy_s
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se6astian
good morning
08:21
se6astian
campaign closed
08:21
se6astian
last contribution came in one minute after I removed the perk :)
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08:57
Bertl_oO
fascinating :)
08:57
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09:04
PhilCee
Good morning folks.. just read the 10 pages discussion in the ML forum. As an axiom observer/follower and supporter i appreciate the ml support a lot - nice to read that geggo, alex and the rest are as confident as i that the axiom might be hell of a struggle but worth any effort to set up a free cine system.. Thats how i decided to jump in and leave the 5dmkIII in my dealers window for another while (main camera right now: jvc gy-hd
09:04
PhilCee
*get one one day - but until then, i'll shoot freeith axiom ;
09:05
PhilCee
Bbl
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se6astian
time to leave the ofice
15:19
se6astian
bbl
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se6astian
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se6astian|away
changed nick to: se6astian
18:41
se6astian
good evening
18:43
Bertl_oO
evening se6astian!
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wescotte
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20:20
daFred
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20:22
daFred
se6astian: i found the 3D printer we are lookong for: http://www.atum3d.com
20:22
daFred
I'm shure this is the right one...
20:23
daFred
http://www.instructables.com/id/Atum3D-V1-3D-DLP-printer-kit-assembly-and-calibrat/all/?lang=de
20:23
daFred
https://www.youtube.com/watch?v=xKjNapdL6Is&index=2&list=UUKbkA-EfSMz4Dtw1opl4Tcw
20:25
Bertl_oO
changed nick to: Bertl
20:28
bcallebaut|2
THe 3D printer looks nice
20:29
bcallebaut|2
What will it be used for ?
20:29
daFred
for prototyping
20:30
bcallebaut|2
Prototyping the Axiom Body ?
20:31
daFred
all 3d parts, dictator (Governator) too
20:31
daFred
the company is located in the netherlands...
20:33
bcallebaut|2
My uncle has a FDM 3D printer like the maker bot.
20:33
bcallebaut|2
I did some test with it and I was disapointed.
20:34
bcallebaut|2
I read that the DLP based 3D printer are better
20:34
bcallebaut|2
for good prototyping of mechanical parts I use a CNC
20:35
daFred
CNC will be the next step
20:37
bcallebaut|2
if needed I own a semi professionnal CNC and my uncle has a 500mm square professional one
21:13
se6astian
daFred: very nice!
21:14
se6astian
in summary, why is it better than the other DLP based ones?
21:14
se6astian
I have a hard time seeing the differences
21:14
bcallebaut|2
If me (or somebody else) wants to use it it is OK as long as we pay for the materials (steel/ALU)
21:14
daFred
I updated the wiki...
21:15
daFred
in short: b9 has no FullHD beamer
21:15
bcallebaut|2
THe FDM works with a filament and you are limited by the size of the filament
21:17
bcallebaut|2
moreover ,the previously deposited layer gets cold, so doesn't attach very well, retracts... and the slicer programs are buggy.
21:17
bcallebaut|2
I cannot make the part I want with the current slicer programs.
21:18
bcallebaut|2
Oups I don't ranswer to sebastian's question
21:19
daFred
mUVe3D is improving its Z axis at the moment, the original has nylon rolls
21:20
daFred
and the PLA printed parts are not very durable, they want to replace it by metal parts in the future
21:21
daFred
the new Z-axis will be a linear guide like in the atum V1
21:21
bcallebaut|2
With small parts, the result is pretty bad and it retracts when it gets colder
21:37
daFred
se6astian: just got the lead time from Atum: approximately 6 weeks
21:42
Bertl
daFred: can't find anything about the interface/software, do you have some insight there?
21:43
daFred
3D Printing software Creation Workshop from envisionlabs.net
21:44
Bertl
looks like a windows only software, no?
21:44
daFred
firmware is a derivate form reprap RAMPS, i think Marlin...
21:44
bcallebaut|2
looks like there is a software "Creation Workshop" that come with it
21:44
bcallebaut|2
use STL files
21:44
Bertl
ah, no, Windows, Mac and Linux they say
21:46
Bertl
but the download has only Windows files
21:47
daFred
I've not checked yet..
21:56
daFred
https://github.com/Pacmanfan/UVDLPSlicerController "This is the 3dDLPUVController project, also known as CreationWorkshop"
21:59
Bertl
as long as they do not use undocumented or proprietary gcode (or whatever the interface understands) it should be fine
21:59
Bertl
nevertheless we should verify that it works on Linux
22:00
daFred
http://www.buildyourownsla.com/forum/viewtopic.php?f=5&t=97
22:08
bcallebaut|2
See you
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bcallebaut|2
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22:20
se6astian
6 weeks is pretty long, even for the self assembly kit?
22:24
daFred
yes but unfortunately I think it is the best choice
22:32
daFred
from the buildyourownsla forum: "It's just a standard serial gcode controller"
22:33
Bertl
se6astian: yes, agreed, but I haven't even got a reply from the b9creator folks for example
22:34
Bertl
so the question is, if realiable 6 weeks wouldn't be better than unknown delays from other manufaturers, if the printer is really better
22:35
daFred
+ shipping from USA...
22:36
Bertl
ah, hmm, how do they ship and what does the shipping cost?
22:36
daFred
???
22:39
Bertl
was the + shipping in reference to the b9 or the atum?
22:40
daFred
b9, atum is in the netherlands. this should not be that big problem...
22:41
Bertl
ah, got it
22:45
intracube
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intracube
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23:18
wescotte
Wow, congrats on breaking 200k guys! How many cameras do you have to make now?
23:19
Bertl
quite a bunch :)
23:19
Bertl
and thanks!
23:19
wescotte
like 4? :)
23:19
Bertl
yeah, at least 4 :)
23:22
wescotte
Wow, 50+ cameras for the extra week deal. Didn't think it was that many
23:23
Bertl
I think we could have gone on forever literally :)
23:23
Bertl
but it is good that we are finsihed now with the campaign and can focus on building the camera
23:24
wescotte
You can still donate on Indiegogo right? No rewards but it'll still accept them?
23:24
Bertl
yes, I think so
23:25
wescotte
Although probably better to use your direct donation links and save 10% processing fees
23:25
Bertl
yup
23:26
daFred
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23:31
wescotte
Do guys have an idea of specific accelerometer will be used on the beta?
23:31
Bertl
not yet, but we have a list of potential candidates
23:31
Bertl
are you specifically interested in the IMU?
23:33
Rebotnix_Gary
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23:34
Bertl
wb Rebotnix_Gary!
23:34
Rebotnix_Gary
hi bertl
23:34
Rebotnix_Gary
good evening :)
23:34
wescotte
I've seen a paper awhile back about removing motion blur from photos and it might be interesting to try an implement the algorithm. I was going to attempt to do it with a Wii remote + camera but never really found the time and syncing it would have been painful
23:35
wescotte
Syncing it with the beta would probably be much easier :)
23:35
Rebotnix_Gary
what is the main architecture (CPU) of apertus? is it arm or mips?
23:36
Bertl
wescotte: if you like I can give you the list, it would be nice to put it on the wiki and add some pro/cons as well as feature comparisons/technical info
23:36
Bertl
Rebotnix_Gary: at the moment arm
23:36
Bertl
and mips :)
23:36
Rebotnix_Gary
ARM would be really nice..i like this platform a lot
23:36
Rebotnix_Gary
is it a cortex a15?
23:37
Rebotnix_Gary
or other?
23:37
Rebotnix_Gary
and do we developers have maybe some free room for image processing?
23:37
Rebotnix_Gary
like new compression codecs?
23:37
Bertl
i.e. the main FPGA (Zynq) has two arm (Cortex A9) cores, and the GPIO processor (PIC32) is basically a mips
23:37
Rebotnix_Gary
i see
23:37
Rebotnix_Gary
i´m thinking for implementing HEVC
23:38
Rebotnix_Gary
maybe for picture snapshot or thumbs
23:38
Bertl
'you developers' have all the space you like, you can remove the entire system and replace it with your own :)
23:38
wescotte
Bertl: Sure, I'd take a look but I honestly don't know much (anything really) about accelerometers. Just thought it might be something that could be used to perform something like this ---> http://blogs.adobe.com/jnack/2011/10/adobe-demos-amazing-deblurring-tech-new-video.html
23:38
Rebotnix_Gary
i made a demo page where you can see that hevc can beat JPG
23:38
Rebotnix_Gary
http://hevcp.com
23:38
Rebotnix_Gary
please visit it with firefox or chrome
23:38
Rebotnix_Gary
i do not have tested it yet on IE
23:39
Rebotnix_Gary
this version is a c to javascript version, so decoding is quite slow :) the c encoder and decoder lib is much faster
23:39
Rebotnix_Gary
but as i said, i would like to build the wireless addon
23:39
Bertl
who uses IE anyways :)
23:39
Rebotnix_Gary
hehe , right :)
23:39
Rebotnix_Gary
i don't have a system with iE
23:40
Bertl
me neither
23:40
Rebotnix_Gary
but i know that there are some users you uses IE
23:40
Rebotnix_Gary
what you guys think about an wireless viewfinder?
23:40
Rebotnix_Gary
does it makes sense?
23:40
wescotte
Also, I think you could potentially calculate Z depth by comparing a blurred image and an unblurred image.
23:41
Rebotnix_Gary
wescotte, i remember that there were some virtual dub sources for de-bluring
23:41
Rebotnix_Gary
filters..but i do not know if they have the same quality as the adobe one
23:41
Bertl
wescotte: http://pastebin.com/fZWSCRzA
23:42
Bertl
not all of them do everything, I also think we want two units on the Beta to capture movement and rotation properly
23:43
Bertl
maybe one in the center axis, and one on the far diagonal end or so
23:43
wescotte
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23:45
Rebotnix_Gary
bertl, so the imu is a internal part of the camera?
23:45
Rebotnix_Gary
so we can record x,y,z axis?
23:45
Bertl
yes, that's the idea
23:45
dmjnova
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23:45
Rebotnix_Gary
hehe.that´s really nice
23:46
Rebotnix_Gary
can we embedded the positions in the SDI feed as meta-data?
23:46
Bertl
probably
23:46
Rebotnix_Gary
hmmm
23:46
Rebotnix_Gary
i think a timecode would be nice
23:46
Rebotnix_Gary
i experiment with some cuda stuff on a titan GPU for stabilisations
23:46
Rebotnix_Gary
but..an IMU inside the cam is a really nice idea...
23:47
wescotte
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23:47
Rebotnix_Gary
i saw some prototypes on a iOS lib
23:47
Bertl
wb wescotte! see irc log if you missed my paste :)
23:47
Rebotnix_Gary
code in math lab
23:47
Rebotnix_Gary
what about bluetooth?
23:47
Rebotnix_Gary
is there a bluetooth 2.0 or 4.0 interface?
23:48
Bertl
can be done as addon via USB for example
23:48
Rebotnix_Gary
or can we add our own with an rx / tx interface?
23:48
wescotte
Bertl: got it thanks
23:48
Bertl
there is no on-board bluetooth planned at the moment, but yes, you can use some GPIO pins of the PIC for rx/tx interfaces
23:49
Rebotnix_Gary
nice...we have an MFI bluetooth for IOS lib
23:49
Rebotnix_Gary
http://rebotnix.com/gimbalcontrol/
23:49
Rebotnix_Gary
so..i do not know if you like iOS
23:49
Rebotnix_Gary
i like them a lot..so when we have rx and tx we can control the cam over iOS
23:49
Rebotnix_Gary
MFI is the crab that apple wants for serial BT communication, long story
23:49
wescotte
What sort of stuff are you guys looking to accomplish with the IMUs besides stabilization?
23:50
Rebotnix_Gary
wescotte...wait i search an example video
23:50
Bertl
wescotte: nothing in particular, it is mainly for experimentation
23:51
wescotte
Most cameras use hardware in the optics to do stabilization right? They're not using IMUs?
23:52
Rebotnix_Gary
yes..right
23:52
Rebotnix_Gary
http://graphics.stanford.edu/papers/stabilization/overview.mp4
23:52
Rebotnix_Gary
most of the consumer camcorders, not prof. film cameras uses optics stabilisations
23:52
Rebotnix_Gary
with an axis record, we can stabil. a lot better
23:53
Rebotnix_Gary
even when we track time with an synced timecode
23:53
Rebotnix_Gary
sorry, even when we track the three axis with an synced timecode
23:54
Rebotnix_Gary
i experiment with some dummy data that i record from a gimbal from freely, called the mövi m5
23:54
Rebotnix_Gary
when the imu has a high resolution and is fast enough, then its a great tool
23:58
wescotte
What sort of sample rate do you need for decent results?
00:01
Rebotnix_Gary
my first own test uses a 50hz rate with good results
00:01
Rebotnix_Gary
but without embedding it in a meta-data stream , i do not think that it is very useable
00:02
Rebotnix_Gary
you have to export the data, import it in a tracker, learn, stabilize etc.
00:02
Rebotnix_Gary
no users will use this i think
00:02
Rebotnix_Gary
i think it would be great to embedded it in the SDi feed, same as with timecode and then a plugin in after effects, fxp
00:03
Rebotnix_Gary
reads this axis meta data and stabilization is done over GPU, using cuda for example
00:03
Rebotnix_Gary
that it makes sense i think
00:04
Rebotnix_Gary
but for testing, a simple imu on top of the apertus is fine
00:04
Rebotnix_Gary
here is a another video that uses realtime IMU stab.:
00:04
Rebotnix_Gary
https://vimeo.com/103778370
00:09
Rebotnix_Gary
will come back from time to time and will share some thoughts...i also back on the cam and we are very interesting to develop some cool software and hardware tools..see ya
00:09
Bertl
cya
00:11
se6astian
time for bed
00:11
se6astian
god night
00:11
se6astian
*good
00:11
se6astian
changed nick to: se6astian|away
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