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2. Video denoising - Wikipedia

   en.wikipedia.org/wiki/Video_denoising

   Generally, the luminance noise looks more like film grain, while chroma noise looks more unnatural or digital-like. [2] Video denoising methods are designed and tuned for specific types of noise. Typical video noise types are the following: Analog noise Radio channel artifacts High-frequency interference (dots, short horizontal color lines, etc.)

3. Noise (signal processing) - Wikipedia

   en.wikipedia.org/wiki/Noise_(signal_processing)

   Background noise, due to spurious sounds during signal capture; Comfort noise, added to voice communications to fill silent gaps; Electromagnetically induced noise, audible noise due to electromagnetic vibrations in systems involving electromagnetic fields; Noise (video), such as "snow" Noise (radio), such as "static", in radio transmissions

4. Simple interactive object extraction - Wikipedia

   en.wikipedia.org/wiki/Simple_Interactive_Object...

   Simple interactive object extraction (SIOX) is an algorithm for extracting foreground objects from color images and videos with very little user interaction. [1] It has been implemented as "foreground selection" tool in the GIMP (since version 2.3.3), as part of the tracer tool in Inkscape (since 0.44pre3), and as function in ImageJ and Fiji (plug-in).

5. Foreground detection - Wikipedia

   en.wikipedia.org/wiki/Foreground_detection

   N would depend on the video speed (number of images per second in the video) and the amount of movement in the video. [4] After calculating the background B(x,y,t) we can then subtract it from the image V(x,y,t) at time t = t and threshold it. Thus the foreground is:

6. Noise reduction - Wikipedia

   en.wikipedia.org/wiki/Noise_reduction

   Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree. Noise rejection is the ability of a circuit to isolate an undesired signal component from the desired signal component, as with common-mode rejection ratio.

7. Noise (video) - Wikipedia

   en.wikipedia.org/wiki/Noise_(video)

   Noise, static or snow screen captured from a blank VHS tape. Noise, commonly known as static, white noise, static noise, or snow, in analog video, CRTs and television, is a random dot pixel pattern of static displayed when no transmission signal is obtained by the antenna receiver of television sets and other display devices.