KR100917543B1 - 다수의 트랜스코딩된 출력을 생성하는 방법 - Google Patents
다수의 트랜스코딩된 출력을 생성하는 방법 Download PDFInfo
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- KR100917543B1 KR100917543B1 KR1020077009589A KR20077009589A KR100917543B1 KR 100917543 B1 KR100917543 B1 KR 100917543B1 KR 1020077009589 A KR1020077009589 A KR 1020077009589A KR 20077009589 A KR20077009589 A KR 20077009589A KR 100917543 B1 KR100917543 B1 KR 100917543B1
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- South Korea
- Prior art keywords
- transcoding
- bit rate
- reduction
- intermediate data
- video
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
- H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
- H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
- H04N19/197—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters including determination of the initial value of an encoding parameter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computing Systems (AREA)
- Theoretical Computer Science (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Description
Claims (10)
- 단일의 입력에 근거하여 다수의 트랜스코딩된 출력을 생성하는 방법에 있어서,제 1 비디오 입력 요건들을 갖는 제 1 장치와 관련되며 복수의 비디오 처리 동작을 포함하는 제 1 트랜스코딩 세션을 개시하는 단계와,제 2 비디오 입력 요건들을 갖는 제 2 장치와 관련되는 제 2 트랜스코딩 세션을 개시하는 단계와,상기 제 1 트랜스코딩 세션 중 적어도 하나의 상기 비디오 처리 동작과 관련된 적어도 하나의 중간 데이터를 저장하는 단계와,적어도 부분적으로 상기 중간 데이터에 근거하여 상기 제 2 트랜스코딩 세션을 수행하는 단계를 포함하는다수의 트랜스코딩된 출력을 생성하는 방법.
- 제 1 항에 있어서,상기 제 1 트랜스코딩 세션 중의 어떤 중간 데이터를 저장할지를 결정하는 단계(830)를 더 포함하는다수의 트랜스코딩된 출력을 생성하는 방법.
- 제 1 항에 있어서,상기 제 2 비디오 입력 요건들의 적어도 하나는 대응하는 상기 제 1 비디오 입력 요건들의 점진적인 감소인다수의 트랜스코딩된 출력을 생성하는 방법.
- 제 3 항에 있어서,상기 제 1 비디오 입력 요건은 제 1 축소 계수의 스크린 크기 감소와 관련되고, 대응하는 상기 제 2 비디오 입력 요건은 제 2 축소 계수의 스크린 크기 감소와 관련되며, 상기 제 2 축소 계수는 상기 제 1 축소 계수보다 큰 스크린 크기 감소를 제공하는다수의 트랜스코딩된 출력을 생성하는 방법.
- 제 4 항에 있어서,상기 중간 데이터는 상기 제 1 축소 계수에 근거한 스크린 크기 감소 동작의 결과를 포함하는다수의 트랜스코딩된 출력을 생성하는 방법.
- 제 3 항에 있어서,상기 제 1 비디오 입력 요건은 제 1 비트 레이트 감소 계수의 비트 레이트 감소와 관련되고, 대응하는 상기 제 2 비디오 입력 요건은 제 2 비트 레이트 감소 계수의 비트 레이트 감소와 관련되며, 상기 제 2 비트 레이트 감소 계수는 상기 제 1 비트 레이트 감소 계수보다 큰 비트 레이트 감소를 제공하는다수의 트랜스코딩된 출력을 생성하는 방법.
- 제 6 항에 있어서,상기 중간 데이터는 상기 제 1 비트 레이트 감소 계수에 근거한 비트 레이트 감소 동작의 결과를 포함하는다수의 트랜스코딩된 출력을 생성하는 방법.
- 제 7 항에 있어서,상기 중간 데이터는 코딩된 블록 패턴을 더 포함하는다수의 트랜스코딩된 출력을 생성하는 방법.
- 제 8 항에 있어서,상기 제 2 트랜스코딩 세션을 수행하는 단계는,상기 코딩된 블록 패턴이 실질적으로 0과 동일한지의 여부를 결정하는 단계와,상기 코딩된 블록 패턴이 실질적으로 0과 동일한 경우, 상기 중간 데이터에 대해 드리프트 정정(drift correction) 및 에러 누적(error accumulation)을 수행하지 않는 단계를 더 포함하는다수의 트랜스코딩된 출력을 생성하는 방법.
- 삭제
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/975,244 US20060088105A1 (en) | 2004-10-27 | 2004-10-27 | Method and system for generating multiple transcoded outputs based on a single input |
| US10/975,244 | 2004-10-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20070063564A KR20070063564A (ko) | 2007-06-19 |
| KR100917543B1 true KR100917543B1 (ko) | 2009-09-16 |
Family
ID=35788965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020077009589A Expired - Fee Related KR100917543B1 (ko) | 2004-10-27 | 2005-10-27 | 다수의 트랜스코딩된 출력을 생성하는 방법 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20060088105A1 (ko) |
| EP (1) | EP1805995B1 (ko) |
| KR (1) | KR100917543B1 (ko) |
| CN (1) | CN101049025B (ko) |
| WO (1) | WO2006047792A1 (ko) |
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2004
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2005
- 2005-10-27 CN CN200580036994.1A patent/CN101049025B/zh not_active Expired - Fee Related
- 2005-10-27 EP EP05819521.5A patent/EP1805995B1/en not_active Expired - Lifetime
- 2005-10-27 WO PCT/US2005/039679 patent/WO2006047792A1/en not_active Ceased
- 2005-10-27 KR KR1020077009589A patent/KR100917543B1/ko not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| EP1805995A1 (en) | 2007-07-11 |
| EP1805995B1 (en) | 2018-07-25 |
| CN101049025B (zh) | 2014-12-17 |
| US20060088105A1 (en) | 2006-04-27 |
| KR20070063564A (ko) | 2007-06-19 |
| WO2006047792A1 (en) | 2006-05-04 |
| CN101049025A (zh) | 2007-10-03 |
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