Image rate manipulation

oysstu

Hi,

Is it possible to deterministically reduce the rate of the image stream, e.g. that every Nth frame is passed through to further processing? I've browsed around the C++ API looking for something like this, but haven't been able to find something like this except xlink fps limit and/or setting the queue depth to 1 and non-blocking. I assume this will still do all the processing on every frame and only limit the output rate to the host.

Edit: What effect does a still capture have on an ongoing video stream? Does it pause the video output for a split second to capture the still, or does it simply extract a frame from the next video frame? If the latter is true, periodic processing may be triggered through the still capture API.

Best regards,
oysstu

erik

Hello oysstu ,
you could either set the camera FPS to a lower number or use Script node to pass every X-th frame to the NN and discard/send to host all other frames. The still just grabs/extracts a frame from the next video frame.
Thanks, Erik