Help with Syncing camera

[nkeisler]

Hello-- I am trying to trigger 2 cameras a basler camera and a USB camera ( Arducam 1080P Day & Night Vision USB Camera for Computer, 2MP Automatic IR-Cut Switching All-Day Image USB2.0 Webcam Board with IR LEDs for Windows, Linux, Android and Mac OS). For some reason even though the cameras are being triggered at the same time the resulting videos are different lengths and not synched with the USB camera being shorter. I am using PylonCapture to trigger the basler camera and VideoCapture to trigger the USB camera. I have attached a image of my configuration below. Any help correcting this issue would be greatly appreciated!

[bruno-f-cruz]

Heya. Can you add your workflow? Also, can you clarify: by triggering, do you mean hardware trigger? As in, is there a common signal triggering each frame?

[nkeisler]

Hello, I added my workflow in the screenshot above, let me know if you mean something else (I am very new to bonsai). We are not hardware triggering the cameras. I tried to use CombineLatest to resolve this issue however it results in video outputs with a frame rate way slower than the rate specified in videoWriter. Thank you for the help!

[bruno-f-cruz]

Would you mind adding your .bonsai workflow?

[bruno-f-cruz]

If you are not externally triggering the cameras I am not sure how reliable setting the framerate will be. Have you confirmed which one of the cameras is producing less frames than expected? How different are the lengths of the two videos?

[nkeisler]

troubleshooting_fps_NK.zip