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US 2009/0257511 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.
Claims3
A video decoding method comprising:
- receiving a compressed video signal, the compressed video signal including entropy encoded data and a scanning mode signal indicating a scanning pattern of a plurality of scanning patterns;
- extracting the entropy encoded data and the scanning mode signal from the received compressed video signal;
- entropy decoding the entropy encoded data;
- scanning the entropy decoded data according to the scanning pattern of the plurality of scanning patterns as indicated by the scanning mode signal, to generate scanned data, the scanning pattern being selected from the plurality of scanning patterns;
- dequantizing the scanned data, to generate dequantized data;
- and
- inverse transforming the dequantized data.
4 more elements
Dependencies are inferred from the claim text.