KR20020001828A - 전이 스트림 발생 및 처리를 위한 방법 - Google Patents
전이 스트림 발생 및 처리를 위한 방법 Download PDFInfo
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Abstract
Description
Claims (11)
- 이미지 프레임들을 포함하는 전송 스트림들을 처리하는 시스템에 있어서, 실질적으로 무단층(seamless) 방식으로 제1 전송 스트림에서 제2 전송 스트림으로의 전이를 위한 전이(transition) 스트림을 발생시키는 방법으로서, 상기 방법은i) 제시되는 상기 제1 전송 스트림의 최종 이미지 프레임을 나타내는 타겟 아웃-프레임을 적어도 포함하는 상기 제1 전송 스트림의 일부를 디코딩하는 단계(1220);ii) 제시되는 상기 제2 전송 스트림의 제1 이미지 프레임을 나타내는 타겟 인-프레임을 적어도 포함하는 상기 제2 전송 스트림의 일부를 디코딩하는 단계(1230);iii) 화소 영역 처리(1245)를 사용하여 상기 디코딩된 이미지 프레임들 중 적어도 하나를 처리하는 단계(1240): 및iv) 상기 타겟 아웃-프레임 및 인-프레임을 포함하는 복수의 상기 디코딩된 이미지 프레임들을 인코딩하여 상기 전이 스트림을 발생시키는 단계(1250)를 포함하는 전이 스트림 발생 방법.
- 제1항에 있어서,상기 화소 영역 처리는 모핑(morph), 패이딩(fade), 와이프(wipe), 디졸브(dissolve), 푸쉬(push), 리빌(reveal), 블랙(black)-프레임,프리즈(freeze)-프레임 및 채도-키(chroma-keying) 화소 영역 처리 중 적어도 하나를 포함하는 전이 스트림 발생 방법.
- 제1항에 있어서,상기 제1 및 제2 전송 스트림으로부터 상기 전이 스트림을 형성하는데 사용되는 상기 비디오 프레임들과 관련된 비-비디오 데이타를 추출하는 단계(1320,1340); 및상기 추출된 비-비디오 데이타를 상기 전이 스트림 내에 삽입하는 단계(1360)를 추가로 포함하는 전이 스트림 발생 방법.
- 제3항에 있어서,상기 비-비디오 데이타는 오디오 데이타, 메타(meta)-데이타, 데이타 에센스(essence), 부가(ancilliary) 데이타 및 보조(auxilliary) 데이타 중 적어도 하나를 포함하는 전이 스트림 발생 방법.
- 제3항에 있어서,비-비디오 영역 처리를 사용하여 상기 추출된 비-비디오 데이타 중 적어도 일부를 처리하는 단계(1350)를 추가로 포함하는 전이 스트림 발생 방법.
- 제4항에 있어서,상기 복수의 디코딩된 이미지를 인코딩하는 상기 단계는 상기 인코딩된 복수의 이미지 프레임들을 전송 인코딩하는 단계를 포함하고, 상기 방법은상기 전이 스트림 내의 복수의 전송 패킷들을 비축하는 단계(1315)로서, 상기 비축된 패킷들은 인코딩된 이미지 정보를 저장하는데 이용되지 않는 단계; 및상기 추출된 비-비디오 데이타를 저장하기 위해 상기 비축된 복수의 전송 패킷들 중 적어도 일부를 이용하는 단계(1365)를 추가로 포함하는 전이 스트림 발생 방법.
- 제3항에 있어서,상기 제1 전송 스트림 및 상기 제2 전송 스트림은 각각 제1 및 제2 다중 프로그램 전송 스트림들로 멀티플렉싱되고, 상기 방법은처리될 전송 스트림을 포함하는 각 다중 프로그램 전송 스트림에 대해 전이 스트림 내에 포함되는 모든 이미지 프레임들의 최대 한계(extent)를 결정하는 단계; 및각각 결정된 최대 한계를 수용하기 위해 각 다중 프로그램 전송 스트림을 디멀티플렉싱하는 단계를 추가로 포함하는 전이 스트림 발생 방법.
- 제7항에 있어서,상기 이미지 데이타 한계를 결정하는 상기 단계는 전이 스트림 내에 포함되는 이미지 프레임들과 관련된 모든 비-비디오 데이타의 최대 한계를 결정하는 단계를 포함하고, 상기 최대 한계는 이미지 데이타 한계 및 비-비디오 데이타 한계의 조합을 포함하는 전이 스트림 발생 방법.
- 제1항에 있어서,상기 제1 및 제2 전송 스트림 각각을 인덱싱하는 단계를 추가로 포함하며, 상기 인덱싱 단계는시퀀스 헤더, 픽쳐 헤더 및 미리 정의된 접합 신택스 중 적어도 하나와 관련된 패킷들을 식별하기 위해 인덱싱될 전송 스트림 계층을 분석하는 단계(1010); 및인덱싱될 상기 스트림 내의 각 프레임에 대해, 픽쳐 번호, 픽쳐 코딩 타입, 프레임 전송 패킷 번호의 시작, 프레임 전송 패킷 번호의 종료, 프리젠테이션 타임 스탬프(PTS) 및 디코딩 타임 스탬프(DTS) 중 적어도 하나를 결정하는 단계(1020)를 포함하는 전이 스트림 발생 방법.
- 제1항에 있어서,상기 프롬-스트림 및 상기 투-스트림 각각은 그와 관련된 각 비디오 버퍼링 검정기(VBV) 파라미터를 가지고 있는 전송 스트림을 포함하고, 상기 방법은상기 프롬-스트림 VBV 파라미터 및 상기 투-스트림 VBV 파라미터 사이에 차이가 존재하는지 여부를 결정하는 단계; 및상기 결정에 따라 재-인코딩 단계를 적응시키는 단계를 추가로 포함하는 전이 스트림 발생 방법.
- 제10항에 있어서,상기 적응 단계는상기 프롬-스트림 VBV 파라미터가 상기 투-스트림 VBV 파라미터에 비해 제1 임계치 레벨만큼 초과한다는 결정에 따라 레이트 제어 비트 할당을 증가시키는 단계; 및상기 투-스트림 VBV 파라미터가 상기 프롬-스트림 VBV 파라미터에 비해 제2 임계치 만큼 초과한다는 결정에 따라 상기 레이트 제어 비트 할당을 감소시키는 단계를 포함하는 전이 스트림 발생 방법.
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US12927599P | 1999-04-14 | 1999-04-14 | |
US06/129,275 | 1999-04-14 | ||
US60/129,275 | 1999-04-14 | ||
US09/347,213 US6912251B1 (en) | 1998-09-25 | 1999-07-02 | Frame-accurate seamless splicing of information streams |
US09/347,213 | 1999-07-02 | ||
US09/430,631 | 1999-10-29 | ||
US09/430,631 US6909743B1 (en) | 1999-04-14 | 1999-10-29 | Method for generating and processing transition streams |
PCT/US2000/010208 WO2000062552A2 (en) | 1999-04-14 | 2000-04-14 | Method for generating and processing transition streams |
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KR20020001828A true KR20020001828A (ko) | 2002-01-09 |
KR100725631B1 KR100725631B1 (ko) | 2007-06-08 |
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KR1020017013137A KR100725631B1 (ko) | 1999-04-14 | 2000-04-14 | 전이 스트림 발생 및 처리를 위한 방법 |
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Cited By (1)
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KR100989063B1 (ko) * | 2004-10-25 | 2010-10-25 | 한국전자통신연구원 | Pmcp 확장 메타데이터, 이를 이용한 데이터 스트림생성 장치, 디지털 데이터 방송 송출시스템 및 디지털데이터 방송 송출방법 |
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ES2573317T3 (es) | 2002-02-01 | 2016-06-07 | Koninklijke Philips N.V. | Aparato y medio de soporte de registro, y método, de registro de una secuencia de señales de datos de vídeo |
US8214741B2 (en) * | 2002-03-19 | 2012-07-03 | Sharp Laboratories Of America, Inc. | Synchronization of video and data |
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