IT1184231B - Procedimento di trasmissione di immagini - Google Patents
Procedimento di trasmissione di immaginiInfo
- Publication number
- IT1184231B IT1184231B IT20464/85A IT2046485A IT1184231B IT 1184231 B IT1184231 B IT 1184231B IT 20464/85 A IT20464/85 A IT 20464/85A IT 2046485 A IT2046485 A IT 2046485A IT 1184231 B IT1184231 B IT 1184231B
- Authority
- IT
- Italy
- Prior art keywords
- sampling rate
- expansion
- predictors
- circuit
- compression
- Prior art date
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
- H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59083146A JPS60227582A (ja) | 1984-04-25 | 1984-04-25 | 静止画伝送方式 |
JP59130583A JPS619091A (ja) | 1984-06-25 | 1984-06-25 | 静止画像伝送方式 |
JP59130582A JPS619090A (ja) | 1984-06-25 | 1984-06-25 | 静止画像伝送方式 |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8520464A0 IT8520464A0 (it) | 1985-04-24 |
IT1184231B true IT1184231B (it) | 1987-10-22 |
Family
ID=27304139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT20464/85A IT1184231B (it) | 1984-04-25 | 1985-04-24 | Procedimento di trasmissione di immagini |
Country Status (7)
Country | Link |
---|---|
US (2) | US4703348A (it) |
CA (1) | CA1253958A (it) |
DE (1) | DE3514916A1 (it) |
FR (1) | FR2569074A1 (it) |
GB (1) | GB2158673B (it) |
IT (1) | IT1184231B (it) |
SE (1) | SE465347B (it) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62193383A (ja) * | 1986-02-20 | 1987-08-25 | Kokusai Denshin Denwa Co Ltd <Kdd> | 動画像信号伝送方式 |
US4870695A (en) * | 1987-03-20 | 1989-09-26 | International Business Machines Corporation | Compression and de-compression of column-interlaced, row-interlaced graylevel digital images |
GB2205465B (en) * | 1987-05-13 | 1991-09-04 | Ricoh Kk | Image transmission system |
EP0300775B1 (en) * | 1987-07-21 | 1995-05-31 | Matsushita Electric Industrial Co., Ltd. | Signal encoding and decoding method and device |
AU622128B2 (en) * | 1987-11-16 | 1992-04-02 | Intel Corporation | Processor for expanding a compressed video signal |
US4823201A (en) * | 1987-11-16 | 1989-04-18 | Technology, Inc. 64 | Processor for expanding a compressed video signal |
US5052037A (en) * | 1987-12-24 | 1991-09-24 | Perelman Frank M | Video telephone employing pulse width modulation for data transmission |
JPH01245683A (ja) * | 1988-03-28 | 1989-09-29 | Canon Inc | 画像情報伝送システム |
CA1318381C (en) * | 1988-04-15 | 1993-05-25 | Jun'ichi Ohki | Dual-mode teleconferencing system |
US4991009A (en) * | 1988-07-08 | 1991-02-05 | Ricoh Company, Ltd. | Dynamic image transmission system |
JPH0220185A (ja) * | 1988-07-08 | 1990-01-23 | Ricoh Co Ltd | 動画像伝送方式 |
JPH0263393A (ja) * | 1988-08-30 | 1990-03-02 | Canon Inc | テレビジヨン電話装置 |
US5136618A (en) * | 1989-01-19 | 1992-08-04 | Redband Technologies, Inc. | Method and apparatus for bandwidth reduction of modulated signals |
US5790599A (en) * | 1989-01-19 | 1998-08-04 | Redband Technologies, Inc. | Data compression system using source representation |
US5111293A (en) * | 1989-03-28 | 1992-05-05 | Canon Kabushiki Kaisha | Predictive coding device having a sampling means and a predictive coding means |
KR920010745B1 (ko) * | 1989-11-21 | 1992-12-14 | 주식회사 금성사 | 부재중 비상사태 원격감시시스템 및 화상 송,수신 처리방법 |
US5543939A (en) * | 1989-12-28 | 1996-08-06 | Massachusetts Institute Of Technology | Video telephone systems |
JP2586666B2 (ja) * | 1990-01-16 | 1997-03-05 | 日本電気株式会社 | 予測復号化回路 |
US5130792A (en) * | 1990-02-01 | 1992-07-14 | Usa Video Inc. | Store and forward video system |
US5253275A (en) | 1991-01-07 | 1993-10-12 | H. Lee Browne | Audio and video transmission and receiving system |
US5490208A (en) * | 1991-10-03 | 1996-02-06 | Viscorp | Apparatus and method for voice mode and data mode television-to-television communication |
JPH0622301A (ja) * | 1992-06-30 | 1994-01-28 | Sony Corp | 画像符号化装置 |
US5481182A (en) * | 1993-12-30 | 1996-01-02 | Nadkarni; Gopalkrishna G. | Up/down spectrum scaling of signals |
US5572248A (en) | 1994-09-19 | 1996-11-05 | Teleport Corporation | Teleconferencing method and system for providing face-to-face, non-animated teleconference environment |
US7301944B1 (en) | 1997-10-24 | 2007-11-27 | Tranz-Send Broadcasting Network, Inc. | Media file distribution with adaptive transmission protocols |
US6906757B2 (en) * | 2001-10-09 | 2005-06-14 | Sony Corporation | Method and system for enhancing resolution in a video signal by digital simulation of analog H-sweep velocity modulation |
KR100855020B1 (ko) * | 2007-06-18 | 2008-08-28 | 성균관대학교산학협력단 | 체인 코드 생성 장치 및 방법 |
TWI477142B (zh) * | 2008-06-20 | 2015-03-11 | Mstar Semiconductor Inc | 影像處理電路及相關方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL244226A (it) * | 1958-10-10 | |||
US3679821A (en) * | 1970-04-30 | 1972-07-25 | Bell Telephone Labor Inc | Transform coding of image difference signals |
US3824590A (en) * | 1973-03-26 | 1974-07-16 | Bell Telephone Labor Inc | Adaptive interpolating video encoder |
FR2443769A2 (fr) * | 1978-12-08 | 1980-07-04 | Telediffusion Fse | Compression et expansion (quantification) de signaux numeriques de television a codage differentiel |
JPS56136093A (en) * | 1980-03-26 | 1981-10-23 | Fuji Photo Film Co Ltd | Adaptive quantizer |
US4281344A (en) * | 1980-05-02 | 1981-07-28 | Bell Telephone Laboratories, Incorporated | Video interframe transform coding technique |
FR2503966B1 (fr) * | 1981-04-14 | 1986-10-10 | Thomson Csf | Procede de transmission d'une image, a debit reduit; systeme de transmission pour la mise en oeuvre de ce procede |
JPS5836090A (ja) * | 1981-08-27 | 1983-03-02 | Kokusai Denshin Denwa Co Ltd <Kdd> | テレビジョン信号の中央値予測符号化方式 |
JPS5934781A (ja) * | 1982-08-20 | 1984-02-25 | Mitsubishi Electric Corp | ベクトル量子化方式フレ−ム間符号化装置 |
US4493074A (en) * | 1982-11-03 | 1985-01-08 | The Bendix Corporation | Content induced transaction overlap communication system |
JPS59178874A (ja) * | 1983-03-30 | 1984-10-11 | Fujitsu Ltd | デ−タ圧縮方式 |
JPS6031325A (ja) * | 1983-07-29 | 1985-02-18 | Nec Corp | 予測停止adpcm符号化方式およびその回路 |
US4691233A (en) * | 1986-09-30 | 1987-09-01 | Rca Corporation | Rate buffer control of difference signal decimation and interpolation for adaptive differential pulse code modulator |
-
1985
- 1985-04-17 SE SE8501891A patent/SE465347B/sv not_active IP Right Cessation
- 1985-04-18 GB GB08509925A patent/GB2158673B/en not_active Expired
- 1985-04-22 CA CA000479755A patent/CA1253958A/en not_active Expired
- 1985-04-24 US US06/726,717 patent/US4703348A/en not_active Expired - Lifetime
- 1985-04-24 IT IT20464/85A patent/IT1184231B/it active
- 1985-04-25 FR FR8506342A patent/FR2569074A1/fr active Granted
- 1985-04-25 DE DE19853514916 patent/DE3514916A1/de active Granted
-
1987
- 1987-10-07 US US07/106,079 patent/US4843465A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
SE465347B (sv) | 1991-08-26 |
US4843465A (en) | 1989-06-27 |
US4703348A (en) | 1987-10-27 |
SE8501891L (sv) | 1985-10-26 |
DE3514916A1 (de) | 1985-11-07 |
CA1253958A (en) | 1989-05-09 |
GB2158673B (en) | 1987-05-20 |
FR2569074B1 (it) | 1994-04-22 |
FR2569074A1 (fr) | 1986-02-14 |
SE8501891D0 (sv) | 1985-04-17 |
DE3514916C2 (it) | 1989-03-09 |
GB8509925D0 (en) | 1985-05-30 |
IT8520464A0 (it) | 1985-04-24 |
GB2158673A (en) | 1985-11-13 |
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