Revised in March 2023

This article describes the image distortion due to rolling shutter effect of MOS / CMOS sensor* and how to improve the image quality. 
*Many network cameras are equipped with a rolling shutter MOS / CMOS sensor.

Mechanism of rolling shutter

As rolling shutter does not capture the whole image at once, but captures an image line by line, rolling shutter distortion can happen to any cameras with MOS / CMOS sensor due to environmental vibrations or fast-moving objects.

Sample image of how rolling shutter distortion happens:

e.g., Fast-moving object

 

How to improve the image quality

Try the following methods for improved image quality.

• Avoid vibrations (e.g., Relocate the camera)
• Increase the frame rate
• Increase the shutter speed