Video stabilization with ERS compensation
The amount of video content acquired with smartphones and other mobile devices continues to increase. As a result they the same if not better quality than traditional camcorders.
The visual quality of a video is driven by a number of factors, some common with still image captures, some not. Vivid color and good contrast is important for both still and moving images. However, with moving images, temporal noise and above all, stability are critical. Amateur videos can often be distinguished from professional videos by the jerkiness of the person holding the camera.
In smartphones and small handheld cameras, the problem of jerkiness is compounded by the jello effect. The jello effect stems from the progressive nature of frame acquisition with CMOS sensors. The frame is exposed from the top to the bottom, with up to 1/15s difference between the first and last pixel. In the presence of motion, this makes the scene appear distorted (see image below). When the motion is irregular (as with a handheld acquisition), the scene may even appear as not rigid (see examples here, here and here).
Frame extracted from a video showing some ERS effect….
Contact us for more information