TW354446B - Virtual broadband technology - Google Patents
Virtual broadband technologyInfo
- Publication number
- TW354446B TW354446B TW085108533A TW85108533A TW354446B TW 354446 B TW354446 B TW 354446B TW 085108533 A TW085108533 A TW 085108533A TW 85108533 A TW85108533 A TW 85108533A TW 354446 B TW354446 B TW 354446B
- Authority
- TW
- Taiwan
- Prior art keywords
- pixel
- image data
- digital
- visual image
- pixels
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
- H04N7/148—Interfacing a video terminal to a particular transmission medium, e.g. ISDN
-
- 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
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
- H04N19/45—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder performing compensation of the inverse transform mismatch, e.g. Inverse Discrete Cosine Transform [IDCT] mismatch
-
- 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
- H04N19/60—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
- H04N19/60—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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
Abstract
A compressing method for processing a visual image data to a compressing type suitable for wideband transmission, wherein the visual image data is formed by a plurality of pixels, each pixel has at least one characteristic represents by a digital alue with respective to the characteristic of the pixel, the method comprising the steps of grouping adjacent pixels, one single and new digital value selected from a set of possible digital values of the pixel group serves to replace the digital values of all the pixel, and the new and single digital value is converted into a transferring value selected from finites possible digital values, thus the group is provided with a compressing type, the aforementioned process is repeated to all the pixels in the visual image data and all the transferring value is sent.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPN3992A AUPN399295A0 (en) | 1995-07-06 | 1995-07-06 | Virtual broadband transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
TW354446B true TW354446B (en) | 1999-03-11 |
Family
ID=3788327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW085108533A TW354446B (en) | 1995-07-06 | 1996-08-06 | Virtual broadband technology |
Country Status (4)
Country | Link |
---|---|
AU (1) | AUPN399295A0 (en) |
TW (1) | TW354446B (en) |
WO (1) | WO1997002703A1 (en) |
ZA (1) | ZA965780B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2584999A (en) * | 1998-02-05 | 1999-08-23 | Gateway 2000, Inc. | High-quality audio signals via telephone line |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5477511A (en) * | 1977-12-02 | 1979-06-21 | Fujitsu Ltd | Band compression system for picture signal |
JPS5477510A (en) * | 1977-12-02 | 1979-06-21 | Fujitsu Ltd | Band compression system for picture signal |
JPH06101841B2 (en) * | 1984-01-11 | 1994-12-12 | 日本電気株式会社 | Method and apparatus for encoding moving image signal |
JPS60227582A (en) * | 1984-04-25 | 1985-11-12 | Matsushita Electric Works Ltd | Still picture transmission system |
DE3685589T2 (en) * | 1986-03-19 | 1993-02-04 | British Broadcasting Corp | VIDEO SIGNAL PROCESSING FOR BANDWIDTH REDUCTION. |
US5225904A (en) * | 1987-10-05 | 1993-07-06 | Intel Corporation | Adaptive digital video compression system |
FR2628276B1 (en) * | 1988-03-02 | 1991-06-28 | France Etat | METHOD FOR REDUCING THROUGHPUT OF A SEQUENCE OF DATA FOR ASSISTING THE RECONSTRUCTION OF AN ELECTRONIC IMAGE FROM A SUB-SAMPLE SIGNAL |
JPH02193479A (en) * | 1989-01-20 | 1990-07-31 | Sanyo Electric Co Ltd | Transmission method for high quality video signal |
JP3251002B2 (en) * | 1989-08-15 | 2002-01-28 | ソニー株式会社 | Apparatus and method for receiving image data |
US5155594A (en) * | 1990-05-11 | 1992-10-13 | Picturetel Corporation | Hierarchical encoding method and apparatus employing background references for efficiently communicating image sequences |
JPH0453389A (en) * | 1990-06-21 | 1992-02-20 | Graphics Commun Technol:Kk | Moving vector detector |
JPH04192692A (en) * | 1990-11-24 | 1992-07-10 | Sharp Corp | Television signal transmission system |
GB2258579B (en) * | 1991-08-09 | 1995-06-21 | Mutuo Tanaka | Monitoring system which monitors object via public line |
US5327254A (en) * | 1992-02-19 | 1994-07-05 | Daher Mohammad A | Method and apparatus for compressing and decompressing image data |
WO1994003014A1 (en) * | 1992-07-24 | 1994-02-03 | Koz Mark C | Low power video security monitoring system |
US5392072A (en) * | 1992-10-23 | 1995-02-21 | International Business Machines Inc. | Hybrid video compression system and method capable of software-only decompression in selected multimedia systems |
US5444489A (en) * | 1993-02-11 | 1995-08-22 | Georgia Tech Research Corporation | Vector quantization video encoder using hierarchical cache memory scheme |
US5412429A (en) * | 1993-03-11 | 1995-05-02 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Picture data compression coder using subband/transform coding with a Lempel-Ziv-based coder |
US5508744A (en) * | 1993-03-12 | 1996-04-16 | Thomson Consumer Electronics, Inc. | Video signal compression with removal of non-correlated motion vectors |
US5329365A (en) * | 1993-07-07 | 1994-07-12 | Rca Thomson Licensing Corporation | Method and apparatus for providing compressed non-interlaced scanned video signal |
CA2124711A1 (en) * | 1993-08-24 | 1995-02-25 | Lee-Fang Wei | Concatenated reed-solomon code and trellis coded modulation |
US5416520A (en) * | 1993-11-30 | 1995-05-16 | Intel Corporation | Multiple encoder output buffer apparatus for differential coding of video information |
-
1995
- 1995-07-06 AU AUPN3992A patent/AUPN399295A0/en not_active Abandoned
-
1996
- 1996-07-08 ZA ZA9605780A patent/ZA965780B/en unknown
- 1996-07-08 WO PCT/AU1996/000429 patent/WO1997002703A1/en active Application Filing
- 1996-08-06 TW TW085108533A patent/TW354446B/en active
Also Published As
Publication number | Publication date |
---|---|
ZA965780B (en) | 1997-02-06 |
WO1997002703A1 (en) | 1997-01-23 |
AUPN399295A0 (en) | 1995-07-27 |
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