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mosquito noise

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mosquito noise
A distortion that appears near crisp edges of objects in MPEG and other video frames that are compressed with the discrete cosine transform (DCT). It occurs at decompression when the decoding engine has to approximate the discarded data by inverting the transform model. The mosquito noise appears as random aliasing in these areas and requires sophisticated detection circuits to eliminate it. As TVs get larger, mosquito noise and other artifacts become more noticeable. See artifact. See also Mosquitotone.

Before and After
The mosquito noise on the left is removed with Algolith's Home Theater 3D Mosquito Noise Reducer appliance. The image is enlarged to show more detail. (Image courtesy of Algolith inc., www.algolith.com)
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This causes images to have compression artefacts, such as macro blocking, mosquito noise or banding.
High Definition Home Theatre by Alexander Murryfield / Home based business community
Additional VRS technologies include Mosquito Noise Reduction, Fine Detail Enhancement, Edge Enhancement, Progressive Cadence Detection(TM), RightRate(TM), Precision A/V Lipsync(TM), and Auto CUE-C(TM).
DVDO LAUNCHES EDGE by Electro Manufacturing
RE: Mosquito noise devices: It is a pity they are indiscriminate and although intended to disperse gangs of hoodies will also cause distress to well behaved young people (yes, they do exist).
online views by Evening Gazette (Middlesbrough, England)
 
 
 
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