JP2001507880A - ビデオ画像の伝送方法 - Google Patents
ビデオ画像の伝送方法Info
- Publication number
- JP2001507880A JP2001507880A JP52626498A JP52626498A JP2001507880A JP 2001507880 A JP2001507880 A JP 2001507880A JP 52626498 A JP52626498 A JP 52626498A JP 52626498 A JP52626498 A JP 52626498A JP 2001507880 A JP2001507880 A JP 2001507880A
- Authority
- JP
- Japan
- Prior art keywords
- video image
- transmission method
- frame
- image transmission
- blocks
- 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.)
- Ceased
Links
Classifications
-
- 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
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/507—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction using conditional replenishment
-
- 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
- H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
-
- 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
-
- 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
- H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.送信元でビデオ画像を符号化するとともに伝送し、受信先で復号化を行う 、データ通信網によるビデオ画像伝送方法において、 第1のフレームを前記送信元に備えられた参照メモリに格納し、 前記第1のフレームを圧縮および伝送して、前記受信先の画像メモリに格納し、 前記参照メモリに格納されている第1のフレームを複数のブロックに分割し、 後続する第2のフレームを複数のブロックに分割し、 両フレームの互いに対応するブロックどうしを比較して、ブロック差分を決定 し、 前記ブロック差分が、前もって定められている閾値よりも大きければ、前記ブ ロック間の差分を圧縮および伝送し、ブロックを前記参照メモリに格納し、 前記ブロック間の差分を、受信先において存在する画像に組み込むことを特徴 とするビデオ画像伝送方法。 2.前記フレームは8×8画素の複数のブロックに分割されることを特徴とす る請求の範囲第1項に記載のビデオ画像伝送方法。 3.前記ブロック差分は、互いに対応する前記ブロックに含まれ互いに対応す る幾つかの画素どうしを比較することで決定されることを特徴とする請求の範囲 第1項または第2項に記載のビデオ画像伝送方法。 4.前記画素間の比較は、画素値を示す幾つかのビットどうしを比較すること で決定されることを特徴とする請求の範囲第1項〜第3項のいずれか一つに記載 のビデオ画像伝送方法。 5.前記画素間の比較は、輝度成分を基にしてなされることを特徴と する請求の範囲第1項〜第4項のいずれか一つに記載のビデオ画像伝送方法。 6.各フレームについて前もって決定された部分が伝送され、すでに存在する 前記画像に組み込まれることを特徴とする請求の範囲第1項〜第5項のいずれか 一つに記載のビデオ画像伝送方法。 7.使用される前記圧縮の方法は、JPEG方式であることを特徴とする請求 の範囲第1項〜第6項に記載のビデオ画像伝送方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3280696P | 1996-12-09 | 1996-12-09 | |
US60/032,806 | 1996-12-09 | ||
PCT/FI1997/000763 WO1998026603A1 (en) | 1996-12-09 | 1997-12-08 | Method for the transmission of video images |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001507880A true JP2001507880A (ja) | 2001-06-12 |
Family
ID=21866905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52626498A Ceased JP2001507880A (ja) | 1996-12-09 | 1997-12-08 | ビデオ画像の伝送方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6285791B1 (ja) |
EP (1) | EP0945024A1 (ja) |
JP (1) | JP2001507880A (ja) |
AU (1) | AU731506B2 (ja) |
FI (1) | FI107497B (ja) |
IL (1) | IL129930A (ja) |
WO (1) | WO1998026603A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006243940A (ja) * | 2005-03-01 | 2006-09-14 | Oki Electric Ind Co Ltd | カメラデータ転送装置 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2155408B1 (es) * | 1999-08-09 | 2001-10-16 | Telefonica Sa | Dispositivo aplicable a la captura y transmision en tiempo real de secuencias de video a traves de redes de datos de bajo ancho de banda. |
JP2003519988A (ja) * | 1999-12-22 | 2003-06-24 | ネオムテル・カンパニー・リミテッド | 無線通信を用いた動画像送受信システム及び転送方法 |
IL142421A0 (en) * | 2001-04-03 | 2002-03-10 | Linguistic Agents Ltd | Linguistic agent system |
FR2829635A1 (fr) * | 2001-09-07 | 2003-03-14 | Cit Alcatel | Procede de compression d'images d'animations |
US7043559B2 (en) * | 2002-06-27 | 2006-05-09 | Seiko Epson Corporation | System for distributing objects to multiple clients |
US7321623B2 (en) | 2002-10-01 | 2008-01-22 | Avocent Corporation | Video compression system |
IL162740A (en) * | 2003-06-26 | 2010-06-16 | Given Imaging Ltd | Device, method and system for reduced transmission imaging |
US9560371B2 (en) | 2003-07-30 | 2017-01-31 | Avocent Corporation | Video compression system |
US7555570B2 (en) | 2006-02-17 | 2009-06-30 | Avocent Huntsville Corporation | Device and method for configuring a target device |
CA2650663A1 (en) | 2006-04-28 | 2007-11-08 | Avocent Corporation | Dvc delta commands |
US9247260B1 (en) | 2006-11-01 | 2016-01-26 | Opera Software Ireland Limited | Hybrid bitmap-mode encoding |
US8711929B2 (en) * | 2006-11-01 | 2014-04-29 | Skyfire Labs, Inc. | Network-based dynamic encoding |
US8630512B2 (en) * | 2007-01-25 | 2014-01-14 | Skyfire Labs, Inc. | Dynamic client-server video tiling streaming |
US20110310980A1 (en) * | 2010-06-22 | 2011-12-22 | Qualcomm Mems Technologies, Inc. | Apparatus and methods for processing frames of video data across a display interface using a block-based encoding scheme and a tag id |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6229372A (ja) * | 1985-07-31 | 1987-02-07 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | 2値デ−タの圧縮方法 |
JP2876258B2 (ja) * | 1991-01-23 | 1999-03-31 | 株式会社リコー | デジタル電子スチルカメラ |
JPH04326255A (ja) * | 1991-04-25 | 1992-11-16 | Canon Inc | 画像符号化方法及び装置 |
JP3165296B2 (ja) * | 1992-12-25 | 2001-05-14 | 三菱電機株式会社 | フレーム間符号化処理方式及びフレーム間符号化処理方法及び符号化制御方式 |
JPH0767105A (ja) * | 1993-08-20 | 1995-03-10 | Sony Corp | 画像符号化方法 |
US5506624A (en) * | 1994-07-28 | 1996-04-09 | Silicon Graphics, Inc. | Rotating sample of video images |
KR100235344B1 (ko) * | 1994-12-29 | 1999-12-15 | 전주범 | 영역 분할 부호화 방식의 전경/배경 화상 선택 장치 |
US5703966A (en) * | 1995-06-27 | 1997-12-30 | Intel Corporation | Block selection using motion estimation error |
IL116060A (en) * | 1995-11-19 | 2000-02-17 | Israel State | Method for compression and decompression of a video signal |
-
1997
- 1997-12-08 JP JP52626498A patent/JP2001507880A/ja not_active Ceased
- 1997-12-08 FI FI974454A patent/FI107497B/fi active
- 1997-12-08 EP EP97946782A patent/EP0945024A1/en not_active Withdrawn
- 1997-12-08 WO PCT/FI1997/000763 patent/WO1998026603A1/en active IP Right Grant
- 1997-12-08 IL IL12993097A patent/IL129930A/xx not_active IP Right Cessation
- 1997-12-08 AU AU51906/98A patent/AU731506B2/en not_active Ceased
- 1997-12-09 US US08/987,360 patent/US6285791B1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006243940A (ja) * | 2005-03-01 | 2006-09-14 | Oki Electric Ind Co Ltd | カメラデータ転送装置 |
Also Published As
Publication number | Publication date |
---|---|
EP0945024A1 (en) | 1999-09-29 |
AU731506B2 (en) | 2001-03-29 |
WO1998026603A1 (en) | 1998-06-18 |
FI974454A (fi) | 1998-06-10 |
FI974454A0 (fi) | 1997-12-08 |
IL129930A0 (en) | 2000-02-29 |
IL129930A (en) | 2003-02-12 |
US6285791B1 (en) | 2001-09-04 |
FI107497B (fi) | 2001-08-15 |
AU5190698A (en) | 1998-07-03 |
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