What is a shutter？
The shutter is a mechanism used by the camera to control the effective exposure time of the photosensitive film. It is an important part of the camera, and its structure, form and function are an important factor to measure the quality of the camera.
What is Global Shutter ?
This is achieved by exposing the entire scene at the same time. All pixels of the Sensor collect light at the same time and expose at the same time. That is, at the beginning of the exposure, the Sensor starts to collect light; at the end of the exposure, the light collection circuit is cut off. Then the Sensor value is read out as a picture. CCD is the working method of global shutter.
What is Rolling Shutter?
Unlike the Global shutter, it is achieved by the Sensor’s progressive exposure method. At the beginning of the exposure, the Sensor scans line by line and performs exposure line by line until all pixels are exposed. All actions are completed in a very short time. The exposure time of pixels in different rows is different.
Examples of defects in Rolling Shutter
Example 1
Look at the picture below. Imagine that each orange box is one pixel, and our image has only three pixels. When our hero climbs the stairs, the pixels are read one at a time, causing a lag in the last frame.
Example 2
Ronghua contact for buying or business :
+86 135 9020 6596
+86 755 2381 6381
sales@ronghuayxf.com
www.ronghuayxf.com
Post time: Oct-10-2022
