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by Realizator
Tue May 31, 2022 12:54 pm
Forum: StereoPi v2 hardware
Topic: How to get live preview on StereoPi 2 Camera Kit's 2-inch LCD?
Replies: 7
Views: 8554

Re: How to get live preview on StereoPi 2 Camera Kit's 2-inch LCD?

Hi sodyiumcl,

Since you are able to see the StereoPi logo on your TFT screen, it is connected and configured correctly.

Did you install the latest update for SLP (usint this way described in our Wiki)?
by Realizator
Tue May 31, 2022 12:52 pm
Forum: SLP2 RaspiOS image
Topic: Can't connect to wifi network from SLP2 with error message
Replies: 5
Views: 7716

Re: Can't connect to wifi network from SLP2 with error message

Hello sodyiumcl,

Could you please share your cosmostreamer.conf file with me? You can send it by email to [mynickname]@gmail.com. Loosk like you have a typo or a special character in your wifi router name/password.

p.s. please do not share this file on the forum with all your WiFi AP credentials :)
by Realizator
Tue May 31, 2022 12:48 pm
Forum: SLP2 RaspiOS image
Topic: SLP2 FAQ
Replies: 15
Views: 17292

Re: SLP2 FAQ

Hello MJB83, 1. Could you please confirm that with OpenCV image you have a success with 'raspistill -cs 0' and 'raspistill -cs 1' tests? That's important. 2. For the SLP - did you try another micro SD card? 3. Try this thing. After recording the SLP2 image to the micro SD card, connect this card to ...
by Realizator
Tue May 31, 2022 12:39 pm
Forum: OpenCV, Python and other image processing
Topic: Size and framerate
Replies: 3
Views: 7566

Re: Size and framerate

Hi asdf, You can face a few botlenecks with high resolutions, that's truth. To localize your bottleneck I'd start with checking of the real raspividyuv output FPS first before piping to Python. You can use display output to check, if you are getting 20 FPS requested or lower. The next step is checki...
by Realizator
Fri May 27, 2022 10:06 am
Forum: SLP2 RaspiOS image
Topic: SLP2 FAQ
Replies: 15
Views: 17292

Re: SLP2 FAQ

Hi MJB83, In most cases the issue is poor camera ribbon cable connection, or CM4 connection. Since you are talking about tscreen messages, I guess you have a monitor connected, so you can do a few tests. Since you are new to Pi, let's go a bit simpler way for the hardware test. 1. Please use another...
by Realizator
Tue May 24, 2022 10:37 am
Forum: StereoPi v2 hardware
Topic: Using 2 different MIPI cameras
Replies: 2
Views: 6449

Re: Using 2 different MIPI cameras

Hi thntpl, Your situation requres some advanced tricks and settings. To say briefly, you won't be able to solve this using the regular raspivid/raspistill approach, due to the fact that in this case video subsystem is able to use only a single driver for the camera. To get system working you need to...
by Realizator
Fri May 13, 2022 7:16 am
Forum: Cameras and video capture modules
Topic: Splitting stereo video into two videos?
Replies: 4
Views: 9323

Re: Splitting stereo video into two videos?

Stereomaton, thank you for your answer!

atrunyan, I'm curious why do you need two independent video files to get the disparity map, but not the single side-by-side file. What's the aim of the project?
by Realizator
Thu May 05, 2022 8:38 am
Forum: StereoPi hardware
Topic: CM1 with StereoPi v0.9 gets stuck in rainbow screen during bootup
Replies: 11
Views: 11763

Re: CM1 with StereoPi v0.9 gets stuck in rainbow screen during bootup

Hi HelplessPineapple, I just got tested SteroPi V1 with the CM1 (with the R15-R17 modification). I used the latest Bullseye Lite image - it boots fine. I also tried to use Bullseye Desktop, but CM1's eMMC size is too small to fit the full image. I forced to record it, but the boot fails at some poin...
by Realizator
Fri Apr 29, 2022 12:24 pm
Forum: StereoPi hardware
Topic: CM1 with StereoPi v0.9 gets stuck in rainbow screen during bootup
Replies: 11
Views: 11763

Re: CM1 with StereoPi v0.9 gets stuck in rainbow screen during bootup

Hmmm... You did try to use other PSUs, right?
by Realizator
Thu Apr 28, 2022 11:47 am
Forum: StereoPi hardware
Topic: CM1 with StereoPi v0.9 gets stuck in rainbow screen during bootup
Replies: 11
Views: 11763

Re: CM1 with StereoPi v0.9 gets stuck in rainbow screen during bootup

Do you have any idea what could be causing this behaviour? Could it be an unstable 3.3V or 1.8V power supply during bootup? At the boot time the power consumption can jump, right. I guess this old trick (boot delay) was used for this purpose. I.e. this delay pushes another consumption peak (eMMC ag...
by Realizator
Thu Apr 28, 2022 11:44 am
Forum: StereoPi hardware
Topic: CM1 with StereoPi v0.9 gets stuck in rainbow screen during bootup
Replies: 11
Views: 11763

Re: CM1 with StereoPi v0.9 gets stuck in rainbow screen during bootup

wow, HelplessPineapple, your case looks more and more interesting :-) Am I got you right, that: 1. Your second CM1 with the very old OS was able to run succesfully on the StereoPi 2. After reflashing 2nd CM1 with the newer OS, it stop booting too 3. Both 1st and 2nd CM1 are able to boot succesfully ...
by Realizator
Thu Apr 28, 2022 7:23 am
Forum: StereoPi hardware
Topic: CM1 with StereoPi v0.9 gets stuck in rainbow screen during bootup
Replies: 11
Views: 11763

Re: CM1 with StereoPi v0.9 gets stuck in rainbow screen during bootup

Hi HelplessPineapple, If CM1 is working fine on RPF's IO board - looks like it's alive. The R15/R17 switching just connects another output from the DC-DC chip ( schematic ) to the CM's VBAT pins. I don't think that 5V powering of CM1 would damage LM26420. Could you please check a few things: 1. The ...
by Realizator
Wed Apr 20, 2022 2:11 pm
Forum: Your Project
Topic: Live object detection with depth estimation
Replies: 1
Views: 6271

Re: Live object detection with depth estimation

Hi Rpiname,

Wow, thanx for sharing this cool article!
by Realizator
Wed Apr 20, 2022 2:08 pm
Forum: Video, photo (livestream, recording, photo capturing)
Topic: raspivid exe on SLP image
Replies: 6
Views: 8489

Re: raspivid exe on SLP image

Oddbloke, raspivid supports stereoscopic (dual camera) mode out-of-the-box. It combines two frames into one single image. The only issue for us was the lack of this combined image preview on HDMI, that's why we did this minor patch. :-) if you add "-3d" key to the raspivid, it will capture stereosco...
by Realizator
Sun Apr 17, 2022 7:16 pm
Forum: Video, photo (livestream, recording, photo capturing)
Topic: raspivid exe on SLP image
Replies: 6
Views: 8489

Re: raspivid exe on SLP image

We didn't publish this, since it's very special (and not optimal for all usecases). Our suggestion of adding this to the main app on the github was rejected by Raspberry team, but you can find this issue discussion in this topic on the Raspberry forum.
by Realizator
Thu Apr 14, 2022 8:59 pm
Forum: StereoPi v2 hardware
Topic: Customization of HDMI output modes on SLP image
Replies: 9
Views: 12370

Re: Customization of HDMI output modes on SLP image

Hi glowingskull , Raspberry Pi's H264 encoder has a limit for the resolution it can encode (~1920x1080). Macroblock is internal term used in H264 encoding. WHen you are trying to set higher resolution, MMAL is trying to increase the H264 encoding level to 4.2 (to support more macroblocks) but fails....
by Realizator
Thu Apr 14, 2022 8:53 pm
Forum: Video, photo (livestream, recording, photo capturing)
Topic: A physical button to take photos
Replies: 37
Views: 81420

Re: A physical button to take photos

Hello Lukas,

You see, this button option request was so popular for SLP1, that SLP2 has this feature out-of-the box. You can find settings here in the Wiki. And in this Wiki section you can find some more details on button's connection.
by Realizator
Thu Apr 14, 2022 8:48 pm
Forum: Video, photo (livestream, recording, photo capturing)
Topic: raspivid exe on SLP image
Replies: 6
Views: 8489

Re: raspivid exe on SLP image

Hi Kris,

We are using the modified version, which supports the stereoscopic output to the HDMI. The "stock" raspivid has no this option.

raspivid is built on MMAL subsystem. It's good and polished, but now it is being replaced with libcamera-x libs (starting from Bullseye RaspiOS).
by Realizator
Mon Apr 04, 2022 11:12 am
Forum: StereoPi v2 hardware
Topic: Political events and shipping?
Replies: 1
Views: 6428

Re: Political events and shipping?

Hello Jlv, All boards are produced in China, and kits are assembled in the USA and Canada. There are no new trade war issues (afaik) between the USA and China, so we can consider this as a "normal" time. Crowd Supply / Mouser warehouse should have enough boards at this moment. And more Camera Kits w...
by Realizator
Mon Apr 04, 2022 11:09 am
Forum: Video, photo (livestream, recording, photo capturing)
Topic: Calculation the area in a given shape
Replies: 1
Views: 6261

Re: Calculation the area in a given shape

Hi Yhajaj,

If you can put the reference object to the photo (for the single-image approach).

For the stereoscopic approach you just need to calibrate the camera appropiately. You can build the pointcloud, and get the real 3d coordinates of each "corner" on the image to estimate their size.