Now there are many consumer level camera can shoot high-frame rate video. However, there is sacrificing of effective pixels as the frame rate increase. Here I'm going to take SONY RX10M3 as example. Below show the relationship:
In the manual, the effective pixel is 1136×384 for 1000FPS. My question is, let's say the sensor is a square, does the effective pixel is at the center of the actual sensor? Or is it scattered all around the sensor? I'm curious about this. Depiction: