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US 2011/0085595 A1Published application
Signal compressing system
AssigneeSamsung Electronics Co., Ltd.
InventorsJe-Chang JEONG, Hen-Hee Mun
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Abstract
A multi-scanner scans a signal according to several different patterns. A scanning pattern selector determines which scanning pattern produced the most efficient coding result, for example, for runlength coding, and outputs a coded signal, coded most efficiently, and a selection signal which identifies the scanning pattern found to be most efficient.
Claims4
A video signal compression method comprising:
- scanning a quantized set of video frequency coefficients of an individual sub-block according to a scanning pattern which is selected from a plurality of scanning patterns to produce a set of reordered coefficients;
- producing a scan selection signal indicating the scanning pattern of the scanned quantized set of video frequency coefficients;
- entropy encoding the set of reordered coefficients and outputting an entropy encoded signal;
- and
- transmitting the entropy encoded signal and the scan selection signal that is not entropy encoded.
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Dependencies are inferred from the claim text.