Is there a way how to measure the "severity" of the rolling shutter (RS) effect for a given image sensor? By severity I mean how slow the image read-out is done for every single frame. The slower the read-out is the biger image deformation for motion objects one gets.
I guess such a method would require to take a picture of something that can be measured, probably a vertical line that would move quickly horizontally at a known speed. I would appreciate practical ideas on how to construct such a measurement.
Taking a photo of a strictly vertical object from a passenger car whose speed is measured with GPS could be one of the solutions. However I guess a distance from camera to the measured object would be needed and this may be measured with a stereo camera. Getting a working setup like this may be a bit tricky though. Better solution would be for a lab environment.
I noticed some RS sensors perform decently well (almost like global shutters) while others were really poor... I mean for a certain speed of motion RS might behave like global shutter. Do frame exposure time or frames per second (video) settings play any role in the severity of the effect? It is to be noted that RS is typical for CMOS sensors while GS for CCD sensors.