Video codecs detect and code redundant information. The higher the compression, the more less important information will be removed. Noise in the video content reduces the temporal redundancy and it is forcing the encoder to remove more original content.

Applying a High Fidelity Noise Management before the encoding process reduces the load of the encoder

* The ability of the encoder to recognize motion in a video sequence and to define the motion vectors can be badly influenced by noise. Motion vector accuracy is essential for a high quality video encoding process.

* When noise is present, the encoder may be forced to interpret noise as motion and may even make errors in defining the motion vectors as a result.

* Statistical Multiplexing: When a video service carries a lot of noise, it requires more bandwidth. Bandwidth is finite and depends e.g. on the used modulation. Thus extra bandwidth allocated on one service, results in taking bandwidth from others. A noisy service has the potential to cause another services to suffer. If there is excessive noise at one service within a statistical multiplex, the quality of several services can be decreased.

Please open the side-by-side image in a new tab by using this link or scroll the image below