Search found 900 matches

by Realizator
Mon Aug 24, 2020 9:26 am
Forum: StereoPi hardware
Topic: External trigger sync
Replies: 2
Views: 2709

Re: External trigger sync

Hi Grunky, Stereomaton, thank you for your detailed answer! Grunky, I'd like to add one more idea here. If we are talking about extremely high-precision timing for camera synchronization and capture time, we have the only option here - it is low-level sensors synchronization and external trigger sig...
by Realizator
Thu Aug 20, 2020 5:16 pm
Forum: StereoPi hardware
Topic: StereoPi Issue - Right camera input displaying magenta in hotspots
Replies: 23
Views: 36456

Re: StereoPi Issue - Right camera input displaying magenta in hotspots

Atpfoto, thank you for this extended testing!!!!
I plan to get this magenta effect with one camera, to localize the raspistill parameter, which is not synchronized correctly between two sensors. My experience says, that localizing the problem helps Raspberry Pi engineers to fix this quickly.
by Realizator
Wed Aug 19, 2020 10:02 am
Forum: StereoPi hardware
Topic: StereoPi Issue - Right camera input displaying magenta in hotspots
Replies: 23
Views: 36456

Re: StereoPi Issue - Right camera input displaying magenta in hotspots

Julsboo, is the same camera stays "magenta" if you turn on the "swap camera" option in the Admin panel? p.s. I will try to repeat this bug on my setup, and formulate a bug-report to the RPF. I will also try to find an option affecting on this magenta effect (AWB, color balance etc.) UPD> I posted th...
by Realizator
Tue Aug 18, 2020 4:01 pm
Forum: Your Project
Topic: stereo camera for long exposure time
Replies: 7
Views: 12021

Re: stereo camera for long exposure time

Julsboo, 6mm lenses are more friendly to the customer. Actually we've tested a lot of lenses, and in a process of developing a special metal housing for the stereoscopic setup for HQ cameras. :-)
by Realizator
Tue Aug 18, 2020 9:28 am
Forum: Video, photo (livestream, recording, photo capturing)
Topic: SLP update discussion
Replies: 14
Views: 14564

Re: SLP update discussion

Julsboo, I've added your request to the main wishlist. Good suggestion, thank you!
by Realizator
Tue Aug 18, 2020 9:26 am
Forum: Your Project
Topic: stereo camera for long exposure time
Replies: 7
Views: 12021

Re: stereo camera for long exposure time

Julsboo, I'm curious, what lenses are you using with the HQ camera? I'm using 16mm lenses (suggested by Raspberry), but I feel problems with its "focus depth". I can focus either on nearby objects or on far objects, regardless of the iris settings.
by Realizator
Tue Aug 18, 2020 9:23 am
Forum: Your Project
Topic: stereo camera for long exposure time
Replies: 7
Views: 12021

Re: stereo camera for long exposure time

Hello Julsboo, As you noticed, our SLP code is a mix of admin panel (PHP) as a frontend, and bash for a backend. If you wish to add a new parameter to the admin panel, you can: 1. Edit /var/www/html/index.php and add an intrface element, for example "Exposure time", with appropriate id (like id="my_...
by Realizator
Tue Aug 18, 2020 9:12 am
Forum: OpenCV, Python and other image processing
Topic: Stereo_Camera Calibration error
Replies: 32
Views: 46937

Re: Stereo_Camera Calibration error

Hello Vram,
This fisheye code can work with both fisheye and non-fisheye images. In this forum thread, I used this fisheye code with the customer's set, taken on V2 non-fisheye camera. You can see it works, and even does a minor barrel undistortion for V2 camera.
by Realizator
Mon Aug 17, 2020 2:09 pm
Forum: OpenCV, Python and other image processing
Topic: Stereo_Camera Calibration error
Replies: 32
Views: 46937

Re: Stereo_Camera Calibration error

Vram, I repeated all experiments. Looks like I didn't upload the latest fixes. For the current set, we have a few photos, where chessboard corners are too close to the side. This is an undocumented requirement for the calibration session. I'm uploading the file with the draft fix, please check if it...
by Realizator
Sun Aug 16, 2020 9:27 pm
Forum: StereoPi hardware
Topic: StereoPi Issue - Right camera input displaying magenta in hotspots
Replies: 23
Views: 36456

Re: StereoPi Issue - Right camera input displaying magenta in hotspots

Hi Aftphoto, Thank you for your detailed troubleshooting! I can suggest we have a parameter sync issue (i.e. implementing master camera settings to the slave camera settings). If so, I will recheck this and ask RPF engineers to fix that. To confirm this hypothesis, can you please do one more test, a...
by Realizator
Sun Aug 16, 2020 9:18 pm
Forum: OpenCV, Python and other image processing
Topic: Stereo_Camera Calibration error
Replies: 32
Views: 46937

Re: Stereo_Camera Calibration error

Hello Vram,
Sorry for my late reply. I will try to check the reference code and images to find this issue and fix the code to avoid it in a few days!
by Realizator
Sat Aug 08, 2020 1:26 pm
Forum: StereoPi hardware
Topic: StereoPi Issue - Right camera input displaying magenta in hotspots
Replies: 23
Views: 36456

Re: StereoPi Issue - Right camera input displaying magenta in hotspots

Hi Atfphoto, Both cameras transmitting their data in a digital format. I.e. blur effect can not be caused by the ribbon cable or the camera connector. In my experience, 80% of blur can be removed by cleaning the optics (as it has some fingerprints after touching it). We got this "magenta" effect onl...
by Realizator
Thu Jul 30, 2020 12:08 pm
Forum: StereoPi hardware
Topic: Ethernet port lamp not working
Replies: 17
Views: 8768

Re: Ethernet port lamp not working

Aditya-sf and Worasit Sangjan, let me suggest you a replacement. I will send you the StereoPi board + CM3+ Lite. Please check your email (I use the address you used to register on this forum). I will be pleased if after receiving the replacement you can do two tests: 1. Test the replacement setup (n...
by Realizator
Wed Jul 29, 2020 11:21 am
Forum: StereoPi hardware
Topic: Ethernet port lamp not working
Replies: 17
Views: 8768

Re: Ethernet port lamp not working

Sorry for my late reply! Aditya-sf , I see T-connector on your photo and hi-current wires from it. I hope they come from BEC, but not from the LiPo battery. Can you please confirm you are using 5V for powering the StereoPi? I also mentioned you are using the GPIO powering method, but this should not...
by Realizator
Mon Jul 13, 2020 10:16 am
Forum: Video, photo (livestream, recording, photo capturing)
Topic: Port to Oculus Quest
Replies: 28
Views: 25749

Re: Port to Oculus Quest

Hi Buhrmi,
Well, we have two news here.
Bad one: we gave up the h264 idea for the Quest, as it appears extremely difficult.
Good one: we're trying to do MJPEG-based solution, and in contact with one experienced developer, who did a good Unity asset for the real time video livestream to Oculus Quest.
by Realizator
Sun Jul 12, 2020 6:44 pm
Forum: Your Project
Topic: Anyone willing to build a simple 3D Camera?
Replies: 6
Views: 11587

Re: Anyone willing to build a simple 3D Camera?

ThaneGreyhaven, the key question for me now is the appropriate TFT screen. I see a lot of options near 3-3.5", but all of them have a size like the classic Raspberry Pi. Small screens, like 1.44" screen , are too small. I found an "ideal" size, 2.2" , but looks like this screen rather old and poorly...
by Realizator
Fri Jul 10, 2020 8:58 pm
Forum: Your Project
Topic: Anyone willing to build a simple 3D Camera?
Replies: 6
Views: 11587

Re: Anyone willing to build a simple 3D Camera?

I think some of the makers will decide to help you. Or we'll create a kit with all components you need, and you just assemble it. Let me ask you a few questions. 1. Do you understand, what cameras do you need? "Classic" v1/v2, or wide-angle, or new high-resolution HQ cameras? 2. What is the main pur...
by Realizator
Fri Jul 10, 2020 7:50 pm
Forum: Your Project
Topic: Anyone willing to build a simple 3D Camera?
Replies: 6
Views: 11587

Re: Anyone willing to build a simple 3D Camera?

Hi ThaneGreyhaven,
Am I right understand, that you want to get assembled and working solution, instead of a DIY set?
by Realizator
Thu Jul 09, 2020 9:26 pm
Forum: OpenCV, Python and other image processing
Topic: Set max resolution
Replies: 28
Views: 39774

Re: Set max resolution

Pascalfaust, I put some photos of my current idea in this tweet. Will test the new revision of this HQ housing in a few days :-)
by Realizator
Thu Jul 09, 2020 8:56 pm
Forum: OpenCV, Python and other image processing
Topic: Set max resolution
Replies: 28
Views: 39774

Re: Set max resolution

A few days ago I did a solution for the calibration of the FullHD images (3840x1088) with a couple of new HQ cameras. I used video mode capture and did a 3x scaling down of captured images for the preview window. I used 10 fps, it works fine, but a recording of the image takes some time. The average...