Search found 215 matches
- Thu Mar 05, 2020 9:09 am
- Forum: Video, photo (livestream, recording, photo capturing)
- Topic: A physical button to take photos
- Replies: 37
- Views: 82307
Re: A physical button to take photos
Nice rewording into step by step guide.
- Thu Mar 05, 2020 9:02 am
- Forum: Your Project
- Topic: How to work with Stereo Pi
- Replies: 32
- Views: 57550
Re: How to work with Stereo Pi
I agree with Realizator: if you choose the opencv way, which is a bit advanced, following the step by step video tutorial is a good idea. You do not need your PC for the opencv way. All is done on the stereopi, including the compilation, display and even desktop-like interaction with software. Just ...
- Sun Mar 01, 2020 8:09 pm
- Forum: StereoPi hardware
- Topic: No camera feed visible and only one Camera LED illuminated
- Replies: 12
- Views: 10752
Re: No camera feed visible and only one Camera LED illuminated
Again I do not have a board to check right now. The command "ps" do not list all processes by default. In particular the processes launched by other users and processes without associated terminal are filtered out if I remember well. I personally often use "ps aux" which lists more processes than th...
- Sun Mar 01, 2020 11:29 am
- Forum: StereoPi hardware
- Topic: No camera feed visible and only one Camera LED illuminated
- Replies: 12
- Views: 10752
Re: No camera feed visible and only one Camera LED illuminated
Just a few notes to help you before Realizator can give a better answer. I think that only the left camera led is on, even in stereo capture. I do not have my stereopi here to confirm. The commands you give result in a mmal error because there is probably a software that use the cameras. Typically o...
- Fri Feb 28, 2020 8:59 am
- Forum: Your Project
- Topic: How to work with Stereo Pi
- Replies: 32
- Views: 57550
Re: How to work with Stereo Pi
You did not expose what you wanted to do exactly: except if I miss something, we only know that you want access raw video data. If it means capturing videos to process them on PC afterwards, you can do it with SLP. It has an interface to record the videos. You can also use the raspivid program from ...
- Thu Feb 27, 2020 7:05 am
- Forum: Your Project
- Topic: How to work with Stereo Pi
- Replies: 32
- Views: 57550
Re: How to work with Stereo Pi
I did not follow the whole context, but the command you report mixes Linux and Windows notations. To build an opencv program for stereopi, the simplest way is probably to build it on the stereopi itself (man could cross-compile but it requires bigger setup and competences) When you connect with putt...
- Wed Feb 05, 2020 7:55 pm
- Forum: Other topics
- Topic: New article published
- Replies: 6
- Views: 30628
Re: New article published
Does a long time to load considered as a bug?
On my current connection (24Mbps down / 30ms ping to stereopi.com), it takes 39s on mobile phone before being able to start to read (4-5 seconds on PC). I have not read the article yet.
On my current connection (24Mbps down / 30ms ping to stereopi.com), it takes 39s on mobile phone before being able to start to read (4-5 seconds on PC). I have not read the article yet.
- Fri Jan 17, 2020 8:58 am
- Forum: StereoPi hardware
- Topic: StereoPi to Oculus Go direct WiFi connection
- Replies: 10
- Views: 9835
Re: StereoPi to Oculus Go direct WiFi connection
I did not dig into the way proposed by Realizator, but with a quick review of the posted code, I see that you test a probably unset variable AP_IFACE, thus the function AP_run is probably not called.
- Fri Jan 17, 2020 8:41 am
- Forum: Other software
- Topic: command line
- Replies: 2
- Views: 11943
Re: command line
If you use SLP variant of the operating system (which is the default delivered with the kit), remote console access is enabled by default through SSH protocole. See https://wiki.stereopi.com/index.php?title=SLP_(StereoPi_Livestream_Playground)_Raspbian_Image#Advanced_users.E2.80.99_section for crede...
- Fri Jan 10, 2020 8:24 am
- Forum: StereoPi hardware
- Topic: StereoPi to Oculus Go direct WiFi connection
- Replies: 10
- Views: 9835
Re: StereoPi to Oculus Go direct WiFi connection
(quick answer) 1. On my Android phone, it is in Parameters>wireless& network>plus...>sharing connection>wifi hotspot (rough translation, my phone is not in English) Do not know if such feature is available on your device since there is possibly no other network to share on the hotspot. 2. I read the...
- Fri Jan 10, 2020 8:09 am
- Forum: OpenCV, Python and other image processing
- Topic: The depth map colors are constantly changing
- Replies: 6
- Views: 6411
Re: The depth map colors are constantly changing
As the software tries to reconstruct map from two changing images (images in videos often fluctuate, especially with fluorescent lighting) the result can fluctuate too, I guess. What is the order of magnitude of the depth estimation variance? I didn't undersand what you said. I can try to reformula...
- Thu Jan 09, 2020 8:38 am
- Forum: OpenCV, Python and other image processing
- Topic: The depth map colors are constantly changing
- Replies: 6
- Views: 6411
Re: The depth map colors are constantly changing
With the in-depth answer from Realizator, my question has less interest. Normalization part is what I supposed behind my question which is confirmed in the answer.
Nonetheless, it might be interesting for you to check actual values.
Nonetheless, it might be interesting for you to check actual values.
- Thu Jan 09, 2020 8:26 am
- Forum: StereoPi hardware
- Topic: StereoPi and Arduino I2C
- Replies: 3
- Views: 4411
Re: StereoPi and Arduino I2C
You solved it while I wrote an answer. I post it nonetheless because some people reading your topic in the future might find it useful. That said, I am a bit confused. If you used the USB-serial interface (as I supposed in my answer) the 5V power should already be provided. If you use actual hardwar...
- Wed Jan 08, 2020 5:17 pm
- Forum: OpenCV, Python and other image processing
- Topic: The depth map colors are constantly changing
- Replies: 6
- Views: 6411
Re: The depth map colors are constantly changing
As the software tries to reconstruct map from two changing images (images in videos often fluctuate, especially with fluorescent lighting) the result can fluctuate too, I guess.
What is the order of magnitude of the depth estimation variance?
What is the order of magnitude of the depth estimation variance?
- Sun Jan 05, 2020 5:30 am
- Forum: The art of stereoscopic photo
- Topic: 3D macro photo. The 3rd article is here
- Replies: 4
- Views: 14484
Re: 3D macro photo. The 3rd article is here
Well, biased by my vision, I imagined something different. In particular, I have interpreted the term camera as a regular photo camera with minimum control on exposure time and iso, but forgot that for non-photographers it means snapshot taker.
- Thu Jan 02, 2020 10:34 am
- Forum: Video, photo (livestream, recording, photo capturing)
- Topic: Problems using the Android app with Android hotspot and an edimax wifi dongle
- Replies: 17
- Views: 12652
Re: Problems using the Android app with Android hotspot and an edimax wifi dongle
If you power only the stereopi, its cameras and wifi dongle from your 15W source, the power should be enough. I personally use a simple 10W power bank with similar setup without problem. I didn't catch why you talked about USB (a distinct problem?), but I should remind you something about it. On the...
- Wed Jan 01, 2020 6:49 am
- Forum: OpenCV, Python and other image processing
- Topic: Camera calibration
- Replies: 3
- Views: 4762
Re: Camera calibration
The script is totally related to cameras (it computes focal length, centering of the sensor on the optical axis, lens distortion and so on), so it does not matter if you change the operating system. Also SLP is based on raspbian. The parameters (matrices) are stored in binary with/by a library calle...
- Wed Jan 01, 2020 6:29 am
- Forum: Video, photo (livestream, recording, photo capturing)
- Topic: Problems using the Android app with Android hotspot and an edimax wifi dongle
- Replies: 17
- Views: 12652
Re: Problems using the Android app with Android hotspot and an edimax wifi dongle
It sounds like power issue again.
Can you describe your full setup: which board powered by which method (connector) with which source (battery/adaptor) and whenever possible at which power rating?
Can you describe your full setup: which board powered by which method (connector) with which source (battery/adaptor) and whenever possible at which power rating?
- Thu Dec 26, 2019 9:26 pm
- Forum: The art of stereoscopic photo
- Topic: 3D macro photo. The 3rd article is here
- Replies: 4
- Views: 14484
Re: 3D macro photo. The 3rd article is here
Nice introduction. The stereo window, briefly exposed in the video, is a bit more detailed here on this forum . The distance to the front-most element is briefly evoked in this post, but better developed in the article (following the 1/30 rule is an easy way to fulfill the "There shall not be too mu...
- Thu Dec 26, 2019 7:13 pm
- Forum: Your Project
- Topic: simple stereo 3d video
- Replies: 4
- Views: 12957
Re: simple stereo 3d video
Nice. Interestingly, the artifacts created by the combination of roller-shutter and drone vibrations are in very good sync, but the physical alignment of the cameras is far from perfect. I opened the video in a sView (the 3D video player part) which has the advantage of being able to adjust the vert...