IMX577 resolution

tinito

I have a OAK-FFC-6P connected to IMX577 sensors.
Despite they are 12MP sensors, they are recognized as 1920x1080 px sensors:
Connected cameras:
-socket CAM_A : IMX412 1920 x 1080 focus:fixed - COLOR
-socket CAM_B : IMX412 1920 x 1080 focus:fixed - COLOR
-socket CAM_D : IMX412 1920 x 1080 focus:fixed - COLOR

We need to capture still images at full resolution. How can I use them at 12MP?

jakaskerl

Hi @tinito
Run the cam_test with cam_test.py -cams cama,c camb,c camd,c -cres 12mp -rs. You should be getting a 12MP stream.

Thanks,
Jaka

tinito

Hi @jakaskerl

thanks for your hint, I get a warning saying that the 12mp resolution is not supported and the closest one is 1920x1080.

Here the output I get (with a single camera):

$ python3 cam_test.py -cams camb,c -cres 12mp -rs
Enabled cameras:
camb : color
DepthAI version: 2.23.0.0.dev0+ff929745dc99589a560217f857f49d8bf00a5463
DepthAI path: /home/mmigliavacca/.local/lib/python3.10/site-packages/depthai.cpython-310-x86_64-linux-gnu.so
Connected cameras: [{socket: CAM_B, sensorName: IMX412, width: 1920, height: 1080, orientation: AUTO, supportedTypes: [COLOR], hasAutofocus: 0, hasAutofocusIC: 0, name: CAM-SA}]
-socket CAM_B : IMX412 1920 x 1080 focus:fixed - COLOR
USB speed: UNKNOWN
IR drivers: []
[41524016838860C6] [192.168.197.55] [1712841310.197] [ColorCamera(3)] [warning] No calibration data found, ColorCamera won't add FOVs to the color frames!
Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway.
[41524016838860C6] [192.168.197.55] [1712841310.198][ColorCamera(3)] [warning] Resolution 4056x3040 not supported, closest supported resolution is 1920x1080
[41524016838860C6] [192.168.197.55] [1712841310.198] [ColorCamera(3)] [warning] Device will still try to force the specified resolution.
Cam: camb [host | capture timestamp]
FPS: 2.95| 2.95

Here a screenshot of the corresponding preview image:

jakaskerl

Hi tinito
The 12MP issue has been fixed for IMX577 in this build.

Install with mender -install FILE_or_LINK.mender && reboot

Thanks,
Jaka

Luxonis-Alex

@tinito Sorry for this problem, I checked and we can reproduce. Currently for IMX577 these configs are exposed by the imx412 driver:

4056 x 3040 on 4 lanes
3840 x 2160 on 4 lanes
1920 x 1080 on 2 lanes

And as all camera sockets on OAK-FFC-6P are only 2-lane capable, the 1080p config is selected which will not work with the higher resolutions. We need to add more configs in the kernel driver, I hope to have an update on this in the following days. A quick fix may be to revert to using the IMX378 configs, which work with IMX577 unless 180 rotation is enabled.

tinito

Thanks @Luxonis-Alex for checking and clarifing this issue.
Having more configs in the kernel driver would be great. How can I force the use of the IMX378 configs in the meantime?

jakaskerl

tinito
You can't directly specify the config used since that is part of the FW. Using IMX378 config probably wouldn't work since sensors don't have the same decoding.

Thanks for the patience,
Jaka

tinito

@jakaskerl
Any updates on this?

We can also consider changing sensor, if there are options that can work at 12MP with the standard drivers.

As we also have this issue, it would be very helpful if you can suggest a sensor that:
a) works at 12MP out of the box
b) works with 6 sensors simultaneusly connected to the OAK-FFC-6P

jakaskerl

Hi tinito
No good support for multiple same sensors on same I2C bus currently, other than OV9282, OV9782...

Thanks,
Jaka

tinito

Hi @jakaskerl

ok thanks, today we ordered some IMX378 AF boards (from Luxonis) which have the SLASEL signal exposed so we can change the I2C address.
Will the standard driver look for both I2C addresses or do we need a custom module?

Thank you,
Martino

jakaskerl

Hi tinito
Yes, 2 sensors IMX378/477/577 on same bus should work if SLASEL can be changed for the other.

tinito

Hi @jakaskerl

indeed the IMX577 is working now at both 4k and 12mp resolutions, thanks for your support!