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by Torkel
Sun Aug 14, 2016 7:14 pm
Forum: Automation, sensing and robotics
Topic: Pi-based VR Camera + Telepresence Robot (working project)
Replies: 15
Views: 6463

Re: Pi-based VR Camera + Telepresence Robot (working project

I haven't tried encrypting it, but should not be too difficult to get that too in the pipeline. Tricky part about encryption is how to handle handshakes and keys. It is VR in that the user experiencing it is in a virtual representation of the location around the camera. My latest developments in thi...
by Torkel
Sun Aug 14, 2016 4:58 pm
Forum: Automation, sensing and robotics
Topic: Pi-based VR Camera + Telepresence Robot (working project)
Replies: 15
Views: 6463

Re: Pi-based VR Camera + Telepresence Robot (working project

Ah, ok, that's what you meant by bidirectional. For the audio yes - that makes sense of course. I think I could integrate it. When I played around with it at the time of posting this though, I just used a mobile phone in speaker mode :) By fully virtual I mean a synthetic, game-like virtual environm...
by Torkel
Sun Aug 14, 2016 12:46 am
Forum: Automation, sensing and robotics
Topic: Pi-based VR Camera + Telepresence Robot (working project)
Replies: 15
Views: 6463

Re: Pi-based VR Camera + Telepresence Robot (working project

Resolution is arbitrary (up to 8K I think if you use h265). But that's for the equrectangular. Really, if you go above 4K it will not inprove anything because the cameras will limit it then. (Each camera is 1440x1080 at 42fps) Delay is 150ms or so locally from photon hitting camera to photon hitting...
by Torkel
Sat Aug 13, 2016 5:21 pm
Forum: Automation, sensing and robotics
Topic: Pi-based VR Camera + Telepresence Robot (working project)
Replies: 15
Views: 6463

Re: Pi-based VR Camera + Telepresence Robot (working project

Yes, a Blackmagic solution is more expensive. It saves a lot of time because it's live (and live-to-tape) so no lengthy post stitching. Yes, Cube had minimal parallax. But our software is the best in the market at handling parallax so that's not the biggest plus :) Maybe a two-camera Kodak SP360 sol...
by Torkel
Sat Aug 13, 2016 3:51 pm
Forum: Automation, sensing and robotics
Topic: Pi-based VR Camera + Telepresence Robot (working project)
Replies: 15
Views: 6463

Re: Pi-based VR Camera + Telepresence Robot (working project

Might work on that laptop though... our SW is very efficient. But also might not work - hard to tell. Decode of h264 streams is CPU intensive. This solution (Cube we call it) is not very good in image quality either. The raspberry pi cameras have "automatic lens shading" which messes them up. If you...
by Torkel
Sat Aug 13, 2016 5:54 am
Forum: Camera board
Topic: Live Lightfield Rig with 12 RPi cameras
Replies: 7
Views: 1741

Re: Live Lightfield Rig with 12 RPi cameras

Thank you :) It's a board that can be found on ebay and some other sites like that (e.g. Alibaba/express), I think this is it but my hotel wifi is so bad it has not managed to bring it up: http://www.ebay.com/itm/New-Camera-Module-Board-5MP-160-Wide-Angle-Fish-Eye-Lenses-For-Raspberry-Pi-/3013528638...
by Torkel
Sat Aug 13, 2016 5:35 am
Forum: Automation, sensing and robotics
Topic: Pi-based VR Camera + Telepresence Robot (working project)
Replies: 15
Views: 6463

Re: Pi-based VR Camera + Telepresence Robot (working project

Would it be possible to use this for a: record 360°-videos for YouTube and Facebook? Yes b: lifestream 360° to YouTube and Facebook? Yes Does the stitching software run on an external PC? Yes What are the system requirements for the software? For streaming/recording it needs an Nvidia GPU (we use t...
by Torkel
Wed May 25, 2016 6:21 pm
Forum: Camera board
Topic: Live Lightfield Rig with 12 RPi cameras
Replies: 7
Views: 1741

Re: Live Lightfield Rig with 12 RPi cameras

Yes! All twelve of them are connected to a RPi 3. Cabling was fun :)

(I used two of the cabinets I developed for this: http://odenvr.com/devkit/)
by Torkel
Wed May 25, 2016 5:25 pm
Forum: Camera board
Topic: Live Lightfield Rig with 12 RPi cameras
Replies: 7
Views: 1741

Re: Live Lightfield Rig with 12 RPi cameras

Thanks :) If you want to do the computations on the raspberry pis, I think that will be rather difficult. The computer in the video is running a GTX 970 which I would not call an insane GPU, but is still really powerful. The depth of field effect is also not so powerful if it's just two cameras - it...
by Torkel
Tue May 24, 2016 3:45 pm
Forum: Camera board
Topic: Live Lightfield Rig with 12 RPi cameras
Replies: 7
Views: 1741

Live Lightfield Rig with 12 RPi cameras

I made a live lightfield rig with 12 raspberry pi cameras (not latest version, but with better lens). It's a big deal for me so I wanted to share it here :) YouTube video: https://youtu.be/BGVFhFMRrUE I am continually amazed by just how versatile and dependable the raspberry pi camera is and how muc...
by Torkel
Mon Apr 04, 2016 11:21 am
Forum: Camera board
Topic: Fullbody Scanner with Projektion-Images and Texture-Images
Replies: 6
Views: 1180

Re: Fullbody Scanner with Projektion-Images and Texture-Imag

What... You think it's an April fools' joke? :/ But it's not unrealistic to build such a rig... I make rigs with 6 cameras for full 360° video. And I'm making one with 12 cameras for lightfield capture... 139 cameras is more than 12, sure, but if you look at what e.g. Stanford is doing with their Li...
by Torkel
Mon Apr 04, 2016 10:18 am
Forum: Camera board
Topic: Fullbody Scanner with Projektion-Images and Texture-Images
Replies: 6
Views: 1180

Re: Fullbody Scanner with Projektion-Images and Texture-Imag

First of all - Wow! That's so cool - 139 RPi-camera full-body scanner?! Do you have a link to the project? I'd like to know more :) Second, technically: I'm not sure I follow exactly how you capture your images, but why not use manual settings for the camera? I imagine you already have a custom appl...
by Torkel
Thu Mar 03, 2016 12:05 pm
Forum: Automation, sensing and robotics
Topic: Pi-based VR Camera + Telepresence Robot (working project)
Replies: 15
Views: 6463

Pi-based VR Camera + Telepresence Robot (working project)

I made a 360° camera based on the raspberry pi 2 (6 of them actually), and now also a VR telepresence robot. I've gotten help from this forum so I wanted to share the result: http://i.imgur.com/PAWhQml.jpg The camera has 6 Raspberry Pi 2 boards and long cables to 6 sensor boards mounted on a small c...
by Torkel
Mon Feb 22, 2016 12:05 pm
Forum: Camera board
Topic: Is there still something auto even with fixed awbg, iso, ss?
Replies: 17
Views: 3145

Re: Is there still something auto even with fixed awbg, iso,

The color-sync routine works on live video. Sadly I can't release the source for it. It is baked into our video processing software, and that is proprietary. But if your problem is that you have a single camera that has a color issue, then I suggest you search around the forum here for other threads...
by Torkel
Mon Feb 22, 2016 11:46 am
Forum: Camera board
Topic: Is there still something auto even with fixed awbg, iso, ss?
Replies: 17
Views: 3145

Re: Is there still something auto even with fixed awbg, iso,

If anybody is interested:
I ended up writing a sync-routine for matching the colors of the six cameras in the 360°-rig. It actually works very well now. Here is the result of the project:
http://odenvr.com/devkit/
by Torkel
Fri Nov 27, 2015 10:30 pm
Forum: Camera board
Topic: Night Video from Aircraft
Replies: 9
Views: 1364

Re: Night Video from Aircraft

I might be wrong here, but I think that if auto exposure does not give you an image that is bright enough for you then I don't think manual overrides will make a difference. I would look into an alternative lens. There are at least two camera boards available on ebay/aliexpress that are compatible w...
by Torkel
Fri Nov 27, 2015 6:00 pm
Forum: Camera board
Topic: Is there still something auto even with fixed awbg, iso, ss?
Replies: 17
Views: 3145

Re: Is there still something auto even with fixed awbg, iso,

Thats a good tip - flickering light can definitely cause issues! But in this case I'm pretty sure that's not the issue: at 40 fps a totally open (360°) shutter is 25000 μs and we're at 24830 μs so we're pretty much all open, also the 40 fps and 50 Hz mains (Sweden) should not cause major interferenc...
by Torkel
Wed Nov 18, 2015 8:20 pm
Forum: Camera board
Topic: Is there still something auto even with fixed awbg, iso, ss?
Replies: 17
Views: 3145

Re: Is there still something auto even with fixed awbg, iso,

Grasping at straws here, but in the pdf that is loose I read about register 0x5000 where bit 7 is said to control lens correction. I saw somebody had managed to talk to the camera over I2C0 since the videocore ISP is silent there after everything is set to manual, so maybe that would be worth trying...
by Torkel
Tue Nov 17, 2015 8:35 pm
Forum: Camera board
Topic: Is there still something auto even with fixed awbg, iso, ss?
Replies: 17
Views: 3145

Re: Is there still something auto even with fixed awbg, iso,

Yes, you are correct - we use multiple physical sensors, connected to multiple rpi2, and the gains are fixed as if supplied with -ISO 100. Jessie with up to date rpi-update. I actually tried to calibrate the sensors a bit like that - I gave them a uniform white thing with 5500K to look at and then I...
by Torkel
Tue Nov 17, 2015 3:58 pm
Forum: Camera board
Topic: Is there still something auto even with fixed awbg, iso, ss?
Replies: 17
Views: 3145

Is there still something auto even with fixed awbg, iso, ss?

I am experimenting with a 360° camera head based on the raspberry pi cameras. I now have an issue where we see changes in color from the camera sensors depending on the lighting in the scene, even though everything is set up as fixed. We make the mmal settings from a custom application, so there is ...
by Torkel
Wed Jun 17, 2015 11:05 pm
Forum: Other projects
Topic: Live streaming "half-sphere" from RaspberryPi to Oculus Rift
Replies: 1
Views: 1018

Re: Live streaming "half-sphere" from RaspberryPi to Oculus

Project update: http://torkeldanielsson.se/livestreaming-vr-camera Video: https://www.youtube.com/watch?v=2UxwuWsBCNE https://d23f6h5jpj26xu.cloudfront.net/njpusneke6coda_small.jpg https://d23f6h5jpj26xu.cloudfront.net/kdem6z66aofnq_small.jpg https://d23f6h5jpj26xu.cloudfront.net/b3hfguvevleweq_smal...
by Torkel
Mon Apr 20, 2015 11:55 am
Forum: Other projects
Topic: Live streaming "half-sphere" from RaspberryPi to Oculus Rift
Replies: 1
Views: 1018

Live streaming "half-sphere" from RaspberryPi to Oculus Rift

I’ve been playing around with the Oculus Rift on and off since the DK1 came out two years ago. Now I finally took the time to make my own live-streaming rig. https://d23f6h5jpj26xu.cloudfront.net/j39frfepdry6g_retina.jpg It might not look like much. But it captures 180°x120° of video in HD, encodes ...
by Torkel
Fri Apr 17, 2015 8:05 pm
Forum: Camera board
Topic: Image quality comparison with alternate lens (wow!)
Replies: 11
Views: 3489

Re: Image quality comparison with alternate lens (wow!)

I didn't change the lens - I bought a camera off of eBay with the wide angle lens on it as purchased. Here is the link: http://www.ebay.com/itm/381022946963?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT I'm positive that the one on the left is the wide angle one and the one on the right...
by Torkel
Fri Apr 17, 2015 11:13 am
Forum: Camera board
Topic: Image quality comparison with alternate lens (wow!)
Replies: 11
Views: 3489

Re: Image quality comparison with alternate lens (wow!)

The official one is the regular, non-wide one. On the right.
by Torkel
Fri Apr 17, 2015 10:47 am
Forum: Camera board
Topic: Image quality comparison with alternate lens (wow!)
Replies: 11
Views: 3489

Image quality comparison with alternate lens (wow!)

I have both a regular and a wide-angle lens version of the picam. Check out this comparison of image quality, I find it quite striking: http://i.imgur.com/GILk7iF.png (wide angle, better, lens to the left) If anybody has a complaint on the image quality of the pi camera - know the lens is to blame :)

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