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Chroma dots were once regarded as undesirable picture noise, but recent advances in computer technology have allowed them to be used to reconstruct the original colour signal from black-and-white recordings, providing a means to re-colour material where the original colour copy is lost. Example of the chroma dot reconstruction:
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Poly Inc., formerly Polycom, is an American multinational corporation that develops video, voice and content collaboration and communication technology. Poly is a subsidiary of HP Inc. [ 2 ] [ 3 ] Polycom was co-founded in 1990 by Brian L Hinman and Jeffrey Rodman. [ 4 ]
ITU-R Rec. BT.2111 [30] and ARIB STD-B72 [31] further added versions with PQ / HLG HDR transfer functions and wide color gamut (BT.2020), which additionally have 100% saturated colors at the top and BT.709 bars at right bottom and left bottom; the 75% gray horizontal bar in the middle is changed to grayscale stair steps.
Dot crawl (also known as chroma crawl or cross-luma) [1] [2] is a visual defect of color analog video standards when signals are transmitted as composite video, as in terrestrial broadcast television. It consists of moving checkerboard patterns which appear along horizontal color transitions (vertical edges).
The data codewords in 0 – 112 range are encoded in 5-of-9 binary dot patterns [2]: 5.2 which are encoded from 9 dots where 5 black dots and 4 white spaces. The rest of barcode matrix (rest from division on 9) is padded with black padding bits. [2]: 5.2.3 The padding bits can be from 0 to 8. The logically DotCode bits array is represented as:
A cue mark, also known as a cue dot, a cue blip, a changeover cue [a] or simply a cue, is a visual indicator used with motion picture film prints, usually placed in the upper right corner of a film frame. [1]
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