Burst of negative event noise on startup

Burst of negative event noise on startup

I have a custom setup where I am using a microcontroller to capture event data from the IMX636 via MIPI CSI; I've gotten to a point where data is captured reliably and efficiently. I've noticed that when I first initialize the camera and begin recording with the lens cap on, that there is a "burst" of negative events that eventually dissipates. I assume that this noise is due to the high sensitivity of the sensor itself. I can expedite the time it takes for the noise to settle by increasing the high pass filter. However, when the biases are all set to zero, this settle time can be upwards of 30 to 45 seconds. I have tried resetting the pixels to remove the noise mid-capture, but no change occurs. Is this just an inherent property of the sensor, or it there a proven method to remove this burst of noise upon start up without adjusting the biases? Thank you!
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