KR100736503B1 - 화상 복호화 방법 및 그 장치 - Google Patents
화상 복호화 방법 및 그 장치 Download PDFInfo
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- KR100736503B1 KR100736503B1 KR1020057025019A KR20057025019A KR100736503B1 KR 100736503 B1 KR100736503 B1 KR 100736503B1 KR 1020057025019 A KR1020057025019 A KR 1020057025019A KR 20057025019 A KR20057025019 A KR 20057025019A KR 100736503 B1 KR100736503 B1 KR 100736503B1
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Abstract
Description
Claims (10)
- 소정 단위의 화상 신호를 포함하는 다중화 된 정보를 복호화하기 위한 화상 복호화 방법에 있어서, 상기 복호화의 대상이 되는 정보에는 상기 화상 신호 전체에 공통하는 정보와 상기 소정 단위의 화상 신호에 관한 정보가 포함되고,상기 다중화 되어 있는 정보로부터 상기 화상 신호 전체에 공통하는 정보와 상기 소정 단위의 화상 신호에 관한 정보를 분리하는 분리화 단계와,분리된 상기 화상 신호 전체에 공통하는 정보에 대해서는, 다수의 복호화 방법을 이용하여 복호화를 행하는 다수 복호화 단계와,분리된 상기 소정 단위의 화상 신호에 관한 정보에 대해서는, 각 소정단위에 공통하는, 단일의 가변 길이 복호화 방법 또는 산술 복호화 방법을 이용하여 복호화를 행하는 공통 복호화 단계를 포함하는 것을 특징으로 하는 화상 복호화 방법.
- 제1항에 있어서,상기 다수 복호화 단계는, 다수의 가변 길이 부호표를 이용하는 복호화 방식이고,상기 공통 복호화 단계는 단일의 가변 길이 부호표를 이용하는 복호화 방식인 것을 특징으로 하는 화상 복호화 방법.
- 제1항에 있어서,상기 다수 복호화 단계는, 다수의 가변 길이 부호표를 이용하는 복호화 방식이고,상기 공통 복호화 단계는, 산술 복호화 방식을 이용하는 복호화 방식인 것을 특징으로 하는 화상 복호화 방법.
- 제1항에 있어서,상기 다수 복호화 단계는, 다수의 고정 길이 부호표 또는 다수의 가변 길이 부호표를 이용하여 복호화를 행하고,상기 공통 복호화 단계는, 미리 한정한 개수의 고정 길이 부호표 또는 가변 길이 부호표를 이용하여 복호화를 행하는 것을 특징으로 하는 화상 복호화 방법.
- 제1항 내지 제4항 중 어느 한 항에 있어서,상기 화상 신호 전체에 공통하는 정보는 헤더 정보이고,상기 소정 단위의 화상 신호에 관한 정보는 슬라이스 데이터인 것을 특징으로 하는 화상 복호화 방법.
- 제1항 내지 제4항 중 어느 한 항에 있어서,상기 화상 신호 전체에 공통하는 정보는, 슬라이스 헤더 정보를 포함하는 헤더 정보이고,상기 소정 단위의 화상 신호에 관한 정보는, 각 슬라이스의 매크로 블록 데 이터인 것을 특징으로 하는 화상 복호화 방법.
- 소정 단위의 화상 신호를 포함하는 다중화 된 정보를 복호화하는 화상 복호화 장치에 있어서, 상기 복호화의 대상이 되는 정보에는 상기 화상 신호 전체에 공통하는 정보와 상기 소정 단위의 화상 신호에 관한 정보가 포함되고,상기 다중화 되어 있는 정보로부터 상기 화상 신호 전체에 공통하는 정보와 상기 소정 단위의 화상 신호에 관한 정보를 분리하는 분리화 수단과,분리된 상기 화상 신호 전체에 공통하는 정보에 대해서는, 다수의 복호화 방법을 이용하여 복호화를 행하는 다수 복호화 수단과,분리된 상기 소정 단위의 화상 신호에 관한 정보에 대해서는, 각 소정 단위에 공통하는, 단일의 가변 길이 부호화 방법 또는 산술부호화 방법을 이용하여 복호화를 행하는 공통 복호화 수단을 구비하는 것을 특징으로 하는 화상 복호화 장치.
- 제7항에 있어서,상기 다수 복호화 수단은, 다수의 가변 길이 부호표를 이용하는 복호화 방식이고,상기 공통 복호화 수단은, 단일의 가변 길이 부호표를 이용하는 복호화 방식인 것을 특징으로 하는 화상 복호화 장치.
- 제7항에 있어서,상기 다수 복호화 수단은, 다수의 가변 길이 부호표를 이용하는 복호화 방식이고,상기 공통 복호화 수단은, 산술 복호화 방식을 이용하는 복호화 방식인 것을 특징으로 하는 화상 복호화 장치.
- 소정 단위의 화상 신호를 포함하는 다중화된 정보를 복호화하는 화상 복호화 장치에 이용되는 화상 복호화 프로그램을 기록한 컴퓨터 판독 가능한 기록 매체에 있어서,제1항 내지 제4항 중 어느 한 항에 기재된 방법을 컴퓨터에 실행시키는 화상 복호화 프로그램이 기록된 것을 특징으로 하는 기록 매체.
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JP2001263248 | 2001-08-31 | ||
JPJP-P-2001-00263248 | 2001-08-31 |
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KR1020037006019A Division KR100588105B1 (ko) | 2001-08-31 | 2002-08-13 | 화상 부호화 방법 및 그 장치 |
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KR1020037006019A KR100588105B1 (ko) | 2001-08-31 | 2002-08-13 | 화상 부호화 방법 및 그 장치 |
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Country Status (13)
Country | Link |
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US (12) | US7664182B2 (ko) |
EP (7) | EP1422944B8 (ko) |
KR (2) | KR100736503B1 (ko) |
CN (2) | CN1777284B (ko) |
AT (1) | ATE447294T1 (ko) |
AU (1) | AU2005204229B2 (ko) |
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