Hello everyone,

I've been experiencing some strange behavior with the visualization of events. The sensor model is EVK4. I have two devices, and both exhibit the same behavior. Specifically, I notice several shifted bands across the image, almost as if the image is being broadcasted in parts. When I reduce the accumulation time, these "stripes" become quite apparent. Increasing the accumulation time, I see a misalignment in the events.

The test was conducted with a spinning fan rotating at high speed and occupying a large part of the field of view, so I am aware that many events are being produced. I tried to exclude illumination issues by using professional lights. When using an image with very few events, like a few black lines on white paper, the problem does not occurs, even with an accumulation time of 100 nanoseconds. I am using a USB3 connection and have tested with both Unix and Windows. I finally used Metavision SDK to reproduce the equivalent image in case it was a simple GUI problem, but I replicated the same problem. I attach some screenshot that show those bands with 100us and the misalignment when the accumulation time increases (also, this last part makes me exclude possible causes like the frequency of illumination system).

I would like to understand if I am doing something wrong in my setup or if this issue is clearly due to hardware limits (the readout?). In the last case, is there any other available acquisition scheme implemented, like a random dropping etc.? Any insights would be greatly appreciated.

Thank you!