EP1520425A1 - Method for transmitting additional data within a video data transmission - Google Patents
Method for transmitting additional data within a video data transmissionInfo
- Publication number
- EP1520425A1 EP1520425A1 EP03763594A EP03763594A EP1520425A1 EP 1520425 A1 EP1520425 A1 EP 1520425A1 EP 03763594 A EP03763594 A EP 03763594A EP 03763594 A EP03763594 A EP 03763594A EP 1520425 A1 EP1520425 A1 EP 1520425A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- additional data
- video data
- transmission
- transmitted
- pixel
- 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
- 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
- H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
-
- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
Definitions
- the invention relates to a method for transferring additional data within a video data transmission according to the preamble of patent claim 1.
- video signals are recorded and reproduced in a rapid sequence of individual images.
- television e.g. PAL standard
- this is 25 frames per second or 50 fields.
- digital recordings this can be up to 30 frames per second.
- each image is broken down into lines and transmitted sequentially to a recipient, where it is reassembled into an image.
- Known compression methods are essentially based on reducing the resolution and reducing the number of images (to be stored or transferred) per second.
- digital compression essentially the difference images, ie only the differing image information between successive images, are transmitted instead of complete images.
- the latest standard for video coding is MPEG4.
- the object of the invention is to provide a method for the transmission of additional data within a video data transmission, which in particular enables a smooth video transmission even with low transmission bandwidths.
- the method for compressing and decompressing video data by means of prioritized pixel transmission which is described in German patent application DE 101 13 880.6 (corresponds to PCT / DE02 / 00987) and whose disclosure is incorporated in full in the disclosure of the present invention, is the basis for the method according to the invention should.
- the video information in the video recording chip is preferably processed in parallel.
- the parallel processing serves that Purpose of first determining the most important pixels and storing them according to a prioritization in a priority array. This array always contains the pixel values sorted according to the prioritization. In accordance with the prioritization, these pixels and the pixel values used for calculating the prioritization are transmitted or stored.
- a pixel has high priority if the differences to its neighboring pixels are very large.
- the pixels are transmitted in groups of pixels whose position in an image array is determined by position values. To reconstruct the video image, the current pixel values are shown on the display.
- the pixels that have not yet been transferred are calculated from the pixels that have already been transferred.
- different methods can be used to calculate the pixels that have not yet been transmitted. If a very large bandwidth is available, a simple linear interpolation can be carried out. If only a very small bandwidth is available, this can be taken into account when transmitting the prioritized pixels.
- position values are used in the transmission of the additional data, which do not occur in the actual video data but are assigned to an offset area of the image array.
- Each pixel group is transmitted with a position value that identifies the position of the pixel group in each image.
- Each image consists of an image array of pixels, which is defined by the values height hx width h, each specified in pixels (pixels).
- an image height h of, for example, 21 and an image width b of 20 pixels result in position values of the pixel groups between 0 ... 419.
- a new scene would start at position value 420 and end at 839, etc.
- the transmission of a new image does not begin at the position value 420, but instead offsets are used, so that it becomes possible to e.g. Transfer information from other scenes.
- the basic procedure will be illustrated using a simple example.
- Image width b 20 pixels (pixel)
- Image height h 21 pixels
- the position values between 420 and 512 can now be used for the transmission of additional information, ie for inline signaling.
- additional information ie for inline signaling.
- the inline signaling for example, the times of scene changes can be transmitted.
- different scenes can be clearly assigned to the position values.
- a scene change that is transmitted in advance allows the new scene to be displayed without a noticeable delay, particularly in the case of low bandwidths.
- Inline signaling means less overhead than having to open individual transmission channels for several cameras (e.g. video conference system).
- the inline signaling also ensures synchronization between the video data and the additional data at all times.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Television Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10231286A DE10231286B4 (en) | 2002-07-10 | 2002-07-10 | Method for the transmission of additional data within a video data transmission |
DE10231286 | 2002-07-10 | ||
PCT/DE2003/002284 WO2004008766A1 (en) | 2002-07-10 | 2003-07-08 | Method for transmitting additional data within a video data transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1520425A1 true EP1520425A1 (en) | 2005-04-06 |
Family
ID=30009891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03763594A Ceased EP1520425A1 (en) | 2002-07-10 | 2003-07-08 | Method for transmitting additional data within a video data transmission |
Country Status (6)
Country | Link |
---|---|
US (1) | US7369154B2 (en) |
EP (1) | EP1520425A1 (en) |
AU (1) | AU2003250780A1 (en) |
DE (1) | DE10231286B4 (en) |
PL (1) | PL373844A1 (en) |
WO (1) | WO2004008766A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10230812B4 (en) * | 2002-07-08 | 2004-11-25 | T-Mobile Deutschland Gmbh | Method for transmitting additional information when using a method for compressing data by means of a prioritizing pixel transmission |
US7212662B2 (en) | 2003-02-27 | 2007-05-01 | T-Mobile Deutschland Gmbh | Method for the compressed transmission of image data for 3-dimensional representation of scenes and objects |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3276985B2 (en) * | 1991-06-27 | 2002-04-22 | ゼロックス・コーポレーション | Image pixel processing method |
GB2270811B (en) * | 1992-09-17 | 1996-02-07 | Sony Broadcast & Communication | Video data compression |
KR0155784B1 (en) * | 1993-12-16 | 1998-12-15 | 김광호 | Adaptable variable coder/decoder method of image data |
DE69519462T2 (en) * | 1994-09-30 | 2001-06-13 | Sanyo Electric Co | Image transmission system and method for data reduction of color images using color tables and summary of image areas |
WO1997007635A2 (en) * | 1995-08-14 | 1997-02-27 | Barkfort Limited | A method and apparatus for compressing digital image data |
DE19541457C1 (en) * | 1995-11-07 | 1997-07-03 | Siemens Ag | Method for coding a video data stream of a video sequence consisting of picture blocks |
US5959676A (en) * | 1995-12-27 | 1999-09-28 | Sony Corporation | Video signal encoding method, video signal encoding apparatus, video signal transmitting method, and recording medium |
US5675382A (en) * | 1996-04-08 | 1997-10-07 | Connectix Corporation | Spatial compression and decompression for video |
AUPO329396A0 (en) | 1996-10-28 | 1996-11-21 | Commonwealth Scientific And Industrial Research Organisation | Image transmission |
JP4697500B2 (en) | 1999-08-09 | 2011-06-08 | ソニー株式会社 | TRANSMISSION DEVICE, TRANSMISSION METHOD, RECEPTION DEVICE, RECEPTION METHOD, AND RECORDING MEDIUM |
WO2002005214A2 (en) | 2000-07-11 | 2002-01-17 | Eg Technology | Adaptive edge detection and enhancement for image processing |
JP4214440B2 (en) | 2000-10-19 | 2009-01-28 | ソニー株式会社 | Data processing apparatus, data processing method, and recording medium |
DE10113880B4 (en) | 2001-03-21 | 2004-04-29 | T-Mobile Deutschland Gmbh | Method for compressing and decompressing video data |
-
2002
- 2002-07-10 DE DE10231286A patent/DE10231286B4/en not_active Expired - Lifetime
-
2003
- 2003-07-08 EP EP03763594A patent/EP1520425A1/en not_active Ceased
- 2003-07-08 AU AU2003250780A patent/AU2003250780A1/en not_active Abandoned
- 2003-07-08 PL PL03373844A patent/PL373844A1/en not_active Application Discontinuation
- 2003-07-08 WO PCT/DE2003/002284 patent/WO2004008766A1/en not_active Application Discontinuation
- 2003-07-08 US US10/520,423 patent/US7369154B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO2004008766A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE10231286B4 (en) | 2004-05-19 |
WO2004008766A1 (en) | 2004-01-22 |
PL373844A1 (en) | 2005-09-19 |
US7369154B2 (en) | 2008-05-06 |
DE10231286A1 (en) | 2004-02-05 |
US20060215015A1 (en) | 2006-09-28 |
AU2003250780A1 (en) | 2004-02-02 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20041218 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20091202 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20160131 |