Search found 17 matches
- Sun Jan 31, 2021 7:06 pm
- Forum: StereoPi hardware
- Topic: Stereopi power over gpio headers
- Replies: 2
- Views: 4190
Stereopi power over gpio headers
Hi, I plan to enclosure my Stereopi and need a button to turn it on and off. I will have no access to the power switch. My first plan has been to use the onoff shim by pimoroni (https://shop.pimoroni.com/products/onoff-shim) which powers the stereopi through the gpio headers, with a button to shutdo...
- Mon Dec 14, 2020 8:18 pm
- Forum: StereoPi hardware
- Topic: Stereopi I2C connection
- Replies: 2
- Views: 2862
Re: Stereopi I2C connection
Thanks Realizator. I found the solution as I had to manually adjust the Bus address since we are using a compute module.
- Mon Nov 16, 2020 9:26 pm
- Forum: StereoPi hardware
- Topic: Stereopi I2C connection
- Replies: 2
- Views: 2862
Stereopi I2C connection
Hello I have brought a seeed grove MLX90640 thermal camera to add to my project. i am having issues with a bus error. I am not sure where the error comes from and whether it would be hardware related to gpioheader connection or software. I have used the correct GPIO pins, scl & sda and run out of id...
- Thu Jun 11, 2020 4:50 pm
- Forum: Video, photo (livestream, recording, photo capturing)
- Topic: Vertical Stripe when at 1080 resolution
- Replies: 1
- Views: 2140
Vertical Stripe when at 1080 resolution
Hi has anyone seen this vertical stripe issue before. I am using waveshare I camera modules and at 1920x1080 resolution. If i reduce resolution to 720 I dont see the issue
Any ideas whats causing this?
Any ideas whats causing this?
- Sat Apr 04, 2020 2:34 pm
- Forum: Video, photo (livestream, recording, photo capturing)
- Topic: A physical button to take photos
- Replies: 37
- Views: 84328
Re: A physical button to take photos
Hi all,
I have been reading this forum post and it is exactly something I am looking to do. One question is the button connect through a breadboard, or straight onto the GPIO pins using the stereopi power connector?
Thanks
I have been reading this forum post and it is exactly something I am looking to do. One question is the button connect through a breadboard, or straight onto the GPIO pins using the stereopi power connector?
Thanks
- Sun Mar 29, 2020 1:15 pm
- Forum: OpenCV, Python and other image processing
- Topic: Stereo_Camera Calibration error
- Replies: 32
- Views: 50060
Re: Stereo_Camera Calibration error
I have fixed my stereo calibration camera issue. It seems i had a few bad stereo pairs, using the example mentioned here and the fix I was able to solve it: https://answers.opencv.org/question/213931/assertion-failed-abs_max-threshold-in-function-stereocalibrate/ Adding this code to calibration afte...
- Sat Mar 28, 2020 5:20 pm
- Forum: OpenCV, Python and other image processing
- Topic: Stereo_Camera Calibration error
- Replies: 32
- Views: 50060
Re: Stereo_Camera Calibration error
I have solved the displaying image problem
- Sat Mar 28, 2020 5:09 pm
- Forum: OpenCV, Python and other image processing
- Topic: Stereo_Camera Calibration error
- Replies: 32
- Views: 50060
Re: Stereo_Camera Calibration error
Hi, Sorry for long reply been away, and its been chaotic with current situation. I now have some time and really want to solve this. One thought i had with why you cant detect checkerboards is i used a 8x6 checkerboard. Sorry i should have mentioned this before. I have tried again, with a bigger 8x6...
- Sun Mar 08, 2020 4:49 pm
- Forum: OpenCV, Python and other image processing
- Topic: Stereo_Camera Calibration error
- Replies: 32
- Views: 50060
Re: Stereo_Camera Calibration error
Thank you for the tips. I will take these on board and try again.
I find it strange though when I ran the code it claims to detect checkerboard and successfully calibrate both left and right camera just not stereo.
Thanks again I will try this again.
I find it strange though when I ran the code it claims to detect checkerboard and successfully calibrate both left and right camera just not stereo.
Thanks again I will try this again.
- Fri Mar 06, 2020 5:19 pm
- Forum: OpenCV, Python and other image processing
- Topic: Stereo_Camera Calibration error
- Replies: 32
- Views: 50060
Re: Stereo_Camera Calibration error
Link to my photos below. Thank you very much. I look forward to hearing back from you I have had no success locating the bad photo.
https://drive.google.com/open?id=1Rgh9I ... 8iQierr70s
https://drive.google.com/open?id=1Rgh9I ... 8iQierr70s
- Fri Mar 06, 2020 1:55 pm
- Forum: StereoPi hardware
- Topic: Left and Right Cameras Reversed
- Replies: 9
- Views: 9639
Re: Left and Right Cameras Reversed
I managed to do the swapping, by putting cameras other way up and then Hflip and Vflip.
However if i wanted to change primary camera in the PiCamera library would this be a raspistill -cs1 switch in the bin file?
However if i wanted to change primary camera in the PiCamera library would this be a raspistill -cs1 switch in the bin file?
- Fri Mar 06, 2020 1:51 pm
- Forum: OpenCV, Python and other image processing
- Topic: Stereo_Camera Calibration error
- Replies: 32
- Views: 50060
Re: Stereo_Camera Calibration error
Hi
I fixed the swapped images, and tried the halving technique, still no success as when i decrease number of photos it claims bad matrix's.
Do you have a place where i can send photo sets?
thanks
Ben
I fixed the swapped images, and tried the halving technique, still no success as when i decrease number of photos it claims bad matrix's.
Do you have a place where i can send photo sets?
thanks
Ben
- Fri Mar 06, 2020 11:34 am
- Forum: OpenCV, Python and other image processing
- Topic: Stereo_Camera Calibration error
- Replies: 32
- Views: 50060
Re: Stereo_Camera Calibration error
i have taken the photos again and re run the script and the error has changed Left camera calibration... Right camera calibration... Stereoscopic calibration... ./calibration_data/240p/camera_calibration_left.npz ['camera_matrix', 'distortion_coeff', 'imgpoints', 'map1', 'map2', 'objpoints'] Camera ...
- Fri Mar 06, 2020 10:01 am
- Forum: OpenCV, Python and other image processing
- Topic: Stereo_Camera Calibration error
- Replies: 32
- Views: 50060
Stereo_Camera Calibration error
Hi, I am running the Stereo Pi Fisheye tutorial. I am on part 4, the calibration. I seem to calibrate both individual cameras but it fails on the Stereo calibration. File "4_calibration_fisheye.py", line 170, in calibrate_one_camera result = calibrate_one_camera(objpointsRIght, imgpointsRight, 'righ...
- Fri Mar 06, 2020 9:51 am
- Forum: StereoPi mechanics
- Topic: StereoPi AnyCase Kit
- Replies: 6
- Views: 18412
Re: StereoPi AnyCase Kit
Hi, I have purchased the anycase kit, i have the waveshare RPi I fisheye camera (https://www.waveshare.com/wiki/RPi_Camera_(I)) This camera does not fit with the anycase kit I purchased, even though it states it works for waveshare. Has waveshare updated their camera modules? I am very frustrated as...
- Fri Mar 06, 2020 9:48 am
- Forum: StereoPi hardware
- Topic: Left and Right Cameras Reversed
- Replies: 9
- Views: 9639
Re: Left and Right Cameras Reversed
Thanks I will try this out
- Thu Mar 05, 2020 9:49 pm
- Forum: StereoPi hardware
- Topic: Left and Right Cameras Reversed
- Replies: 9
- Views: 9639
Re: Left and Right Cameras Reversed
I have the same issue, however with a Rasbian image. Is there a solution using the Rasbian image?