JPH09512399A - パラメータ・サンプリング装置 - Google Patents
パラメータ・サンプリング装置Info
- Publication number
- JPH09512399A JPH09512399A JP7527604A JP52760495A JPH09512399A JP H09512399 A JPH09512399 A JP H09512399A JP 7527604 A JP7527604 A JP 7527604A JP 52760495 A JP52760495 A JP 52760495A JP H09512399 A JPH09512399 A JP H09512399A
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- JP
- Japan
- Prior art keywords
- data
- signal
- complexity
- signals
- parameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1682—Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers
- H04J3/1688—Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers the demands of the users being taken into account after redundancy removal, e.g. by predictive coding, by variable sampling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
-
- 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
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/115—Selection of the code volume for a coding unit prior to coding
-
- 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
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/136—Incoming video signal characteristics or properties
- H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
-
- 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
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/146—Data rate or code amount at the encoder output
- H04N19/15—Data rate or code amount at the encoder output by monitoring actual compressed data size at the memory before deciding storage at the transmission buffer
-
- 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
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/172—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
-
- 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
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
-
- 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
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/177—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a group of pictures [GOP]
-
- 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
- H04N19/46—Embedding additional information in the video signal during the compression process
-
- 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
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2365—Multiplexing of several video streams
-
- 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
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/146—Data rate or code amount at the encoder output
-
- 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
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/146—Data rate or code amount at the encoder output
- H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
-
- 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
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2365—Multiplexing of several video streams
- H04N21/23655—Statistical multiplexing, e.g. by controlling the encoder to alter its bitrate to optimize the bandwidth utilization
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.パラメータ・サンプリング装置であって、 各データ信号がシーケンスに並んだデータ・グループを含み、前記データ信号 のすべての中の各グループは同じ一定の、あらかじめ決められた持続時間をもち 、シーケンスに並んだデータ・ブロックを含んでいる複数のデータ信号ソース( 5)と、 各々が、該データ信号のそれぞれ1つに応答して、該データ信号のそれぞれ1 つの中の前記シーケンスのブロックの各々の信号パラメータを表す値をもつシー ケンスの信号(COMPLEXITY)を出力する複数のパラメータ決定回路(16)と、 各々が、前記パラメータを表す信号(COMPLEXITY)のそれぞれ1つに応答して、 該データ信号の前記それぞれ1つの中の各グループの累積パラメータ値を表す信 号を保持している複数のアキュムレータ(31)と、 前記複数のアキュムレータに結合されていて、該アキュムレータのすべてから 前記累積パラメータを表す信号を実質的に同時にサンプリングするデータ・サン プラ(31)と を備えていることを特徴とする装置。 2.請求項1に記載の装置において、前記複数のアキュムレータ(31)と前記 データ・サンプラ(31)は、それぞれのパラメータ決定回路に結合された複数 の入力端子(COMPLEXITY)をもつコンピュータ・システム(31,32,33,3 4)に構成されていることを特徴とする装置。 3.請求項1に記載の装置において、前記複数のアキュムレータ(31)は、 各シーケンスのパラメータを表す信号(COMPLEXITY)を加算して、前記累積パラ メータ値を出力する回路(31)と、 前記データ・サンプラによってサンプリングされるとき、前記累積パラメータ 値を前記アキュムレータに供給する回路(34)と、 前記供給回路がサンプリングされた直後に、該累積パラメータ値をゼロにリ セットする回路(31)と を含んでいることを特徴とする装置。 4.請求項1に記載の装置において、 各データ・グループは、あらかじめ決められた個数の前記シーケンスのデータ ・ブロックを含んでおり、 前記複数のアキュムレータ(31)の各々は、 各データ・グループに含まれる前記あらかじめ決められた個数のシーケ ンスのデータ・ブロックの信号パラメータ値(COMPLEXITY)を、最新のものから最 も古いものの時間順にストアしておくメモリ(32)と、 前記累積パラメータ値を保持している回路(31)と、 信号パラメータを表す信号(COMPLEXITY)の値を該累積パラメータ値に加 算し、前記最も古い信号パラメータ値(COMPLEXITY)を該累積パラメータ値から減 算する回路(31)と、 該最も古い信号パラメータ値(COMPLEXITY)を前記メモリ(32)から破 棄し、前記信号パラメータを表す信号の値を最新の信号パラメータ値として前記 メモリにストアする回路(31)とを含んでいる ことを特徴とする装置。 5.請求項1に記載の装置において、 前記データ信号ソース(5)の各々はビデオ信号を発生し、前記データ・グル ープはあらかじめ決められた個数のシーケンスのビデオ・フレームからなり、前 記データ・ブロックは前記ビデオ・フレームからなり、 前記パラメータ決定回路(16)の各々は前記ビデオ信号の前記1つの各フレ ームの符号化複雑度を決定する回路(16)を含んでいる ことを特徴とする装置。 6.パラメータ・サンプリング装置であって、 各データ信号がシーケンスに並んだデータ・グループを含み、前記データ信号 のすべての中の各グループは同じ一定の、あらかじめ決められた持続時間をもち 、シーケンスに並んだデータ・ブロックを含んでいる複数のデータ信号ソース( 5)と、 前記複数のデータ信号と制御(CONTROL)信号とに応答する利用回路(14,2 0)と、 各々が、該データ信号のそれぞれ1つに応答して、該データ信号のそれぞれ1 1の中の前記シーケンスのブロックの各々の信号パラメータを表す値をもつシー ケンスの信号(COMPLEXITY)を出力する複数のパラメータ決定回路(16)と、 各々が、前記パラメータを表す信号(COMPLEXITY)のそれぞれ1つに応答して、 該データ信号の前記それぞれ1つの中の各グループの累積パラメータ値を表す信 号を保持している複数のアキュムレータ(31)と、 前記複数のアキュムレータに結合されていて、該アキュムレータのすべてから の前記累積パラメータを表す信号をサンプリングするデータ・サンプラ(31) と、 前記サンプリングされた累積パラメータを表す信号に応答して、該累積パラメ ータを表す信号の値に基づいて前記制御信号を生成する制御信号ジェネレータ( 31)と を備えていることを特徴とする装置。 7.請求項6に記載の装置において、 前記利用回路は、 複数のデータ入力端子をもつデータ・マルチプレクサ(20)と、 それぞれのデータ信号ソースと前記データ・マルチプレクサ(20)の 対応する入力端子(I−K)との間に結合されていて、各々が、それぞれの割当 量制御信号(COMPLEXITY)に応答して、前記それぞれのデータ信号ソース(5)か らのデータ信号を表す符号化信号を前記割当量制御信号で制御されたビットレー トで出力する複数の制御可能な一定ビットレート・エンコーダ(14)とを備え ており、 前記制御信号ジェネレータ(31)は、複数の割当量制御信号(CONTROL)を、 前記複数のパラメータを表す信号(COMPLEXITY)に基づいて生成する ことを特徴とする装置。 8.請求項6に記載の装置において、前記複数のアキュムレータ、前記データ・ サンプラ(31)および前記制御信号ジェネレータ(31)は、それぞれのパラ メータ決定回路(16)に結合された複数の入力端子(COMPLEXITY)と、前記利用 回路(14,20)に結合された複数の出力端子(QUOTA)とをもつコンピュータ ・システム(31〜34)に構成されていることを特徴とする装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1994/004420 WO1995029540A1 (en) | 1994-04-22 | 1994-04-22 | Parameter sampling apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09512399A true JPH09512399A (ja) | 1997-12-09 |
JP3630686B2 JP3630686B2 (ja) | 2005-03-16 |
Family
ID=22242487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52760495A Expired - Fee Related JP3630686B2 (ja) | 1994-04-22 | 1994-04-22 | パラメータ・サンプリング装置 |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0756788B1 (ja) |
JP (1) | JP3630686B2 (ja) |
KR (1) | KR100337104B1 (ja) |
AU (1) | AU6903794A (ja) |
DE (1) | DE69434293T2 (ja) |
WO (1) | WO1995029540A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020069692A (ko) * | 2001-02-27 | 2002-09-05 | 엘지이노텍 주식회사 | 다채널 샘플링 데이터 동시 획득 장치 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2191656B (en) * | 1985-12-24 | 1989-10-18 | British Broadcasting Corp | Method of coding a video signal for transmission in a restricted bandwidth |
US5115309A (en) * | 1990-09-10 | 1992-05-19 | At&T Bell Laboratories | Method and apparatus for dynamic channel bandwidth allocation among multiple parallel video coders |
EP0514663A3 (en) * | 1991-05-24 | 1993-07-14 | International Business Machines Corporation | An apparatus and method for motion video encoding employing an adaptive quantizer |
KR0176448B1 (ko) * | 1991-07-19 | 1999-05-01 | 강진구 | 이미지 코딩 방법 및 장치 |
US5231494A (en) * | 1991-10-08 | 1993-07-27 | General Instrument Corporation | Selection of compressed television signals from single channel allocation based on viewer characteristics |
US5144424A (en) * | 1991-10-15 | 1992-09-01 | Thomson Consumer Electronics, Inc. | Apparatus for video data quantization control |
JP2500582B2 (ja) * | 1993-03-17 | 1996-05-29 | 日本電気株式会社 | 動画像信号の多重化伝送方法とその装置 |
BE1007490A3 (nl) * | 1993-09-10 | 1995-07-11 | Philips Electronics Nv | Inrichting voor het overdragen van een pluraliteit van televisie signalen over een transmissie kanaal. |
-
1994
- 1994-04-22 DE DE69434293T patent/DE69434293T2/de not_active Expired - Lifetime
- 1994-04-22 KR KR1019960705903A patent/KR100337104B1/ko not_active IP Right Cessation
- 1994-04-22 WO PCT/US1994/004420 patent/WO1995029540A1/en active IP Right Grant
- 1994-04-22 AU AU69037/94A patent/AU6903794A/en not_active Abandoned
- 1994-04-22 EP EP94917266A patent/EP0756788B1/en not_active Expired - Lifetime
- 1994-04-22 JP JP52760495A patent/JP3630686B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR100337104B1 (ko) | 2002-11-27 |
WO1995029540A1 (en) | 1995-11-02 |
AU6903794A (en) | 1995-11-16 |
EP0756788A1 (en) | 1997-02-05 |
EP0756788A4 (en) | 1998-05-20 |
KR970702631A (ko) | 1997-05-13 |
DE69434293D1 (de) | 2005-04-14 |
DE69434293T2 (de) | 2006-01-19 |
JP3630686B2 (ja) | 2005-03-16 |
EP0756788B1 (en) | 2005-03-09 |
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