ENCODING METHOD, ENCODING DEVICE, DECODING METHOD, DECODING DEVICE, AND PROGRAM THEREOF

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EP 1 662 801 A8

(12)	CORRECTED EUROPEAN PATENT APPLICATION
	published in accordance with Art. 158(3) EPC

(15)	Correction information:
	Corrected version no 1 (W1 A1)

(48)	Corrigendum issued on:
	02.08.2006 Bulletin 2006/31

(43)	Date of publication:
	31.05.2006 Bulletin 2006/22

(21)	Application number: 05758294.2

(22)	Date of filing: 11.07.2005

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International Patent Classification (IPC):

H04N 7/26^(2006.01)

(86)	International application number:
	PCT/JP2005/012772

(87)	International publication number:
	WO 2006/006564 (19.01.2006 Gazette 2006/03)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR MK YU

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Priority:

12.07.2004 JP 2004204313
24.01.2005 JP 2005015284

(71)	Applicant: SONY CORPORATION
	Tokyo 141-0001 (JP)

(72)	Inventors:
	SUZUKI, Teruhiko SONY CORPORATION Tokyo 1410001 (JP) ISHIGAYA, Kazuhiro c/o SONY CORPORATION Tokyo 1410001 (JP) YAGASAKI, Yoicho c/o SONY CORPORATION Tokyo 1410001 (JP)

(74)	Representative: Keston, Susan Elizabeth et al
	D Young & Co 120 Holborn London EC1 2DY London EC1 2DY (GB)

(54)	ENCODING METHOD, ENCODING DEVICE, DECODING METHOD, DECODING DEVICE, AND PROGRAM THEREOF

(57) A sub block generation circuit 52 divides coefficients of orthogonal transformation by 8×8 to sub block data, and a two-dimensional reversible coding circuit 54 selects transformation table data for assigning an encoding code having a short bit length to non-0 coefficient quantity data indicating "0" in non-0 coefficient quantity data "TotalCoeff" of a sub block being away from direct current components, and performs encoding.