CN104519416B - A kind of method and system of the vertical fingerprint of DTV - Google Patents
A kind of method and system of the vertical fingerprint of DTV Download PDFInfo
- Publication number
- CN104519416B CN104519416B CN201410698113.3A CN201410698113A CN104519416B CN 104519416 B CN104519416 B CN 104519416B CN 201410698113 A CN201410698113 A CN 201410698113A CN 104519416 B CN104519416 B CN 104519416B
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- China
- Prior art keywords
- fingerprint
- character
- vertical
- picture
- dtv
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000013507 mapping Methods 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000011159 matrix material Substances 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
Classifications
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- 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
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
-
- 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
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4318—Generation of visual interfaces for content selection or interaction; Content or additional data rendering by altering the content in the rendering process, e.g. blanking, blurring or masking an image region
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
- H04N21/8352—Generation of protective data, e.g. certificates involving content or source identification data, e.g. Unique Material Identifier [UMID]
Abstract
The present invention relates to digital TV technology, and the invention discloses a kind of implementation method of the vertical fingerprint of DTV, and it specifically includes following step：Step 1: each character that fingerprint can be used is rotated, postrotational character picture corresponding to making, and the mapping relations established between character and postrotational character picture；Step 2: the fingerprint in DTV is received, and the character in fingerprint searches the character picture after corresponding rotation；Step 3: sequentially being spliced the character picture found in step 2 vertically, final vertical fingerprint picture is formed；Step 4: display interface is called to be shown the vertical fingerprint.Postrotational picture is spliced vertically, so as to realize the display of vertical fingerprint.System is realized the invention also discloses a kind of vertical fingerprint of DTV.
Description
Technical field
The present invention relates to digital TV technology, and the invention discloses a kind of implementation method of the vertical fingerprint of DTV
And system.
Background technology
Condition reception is the core component of DTV, although Digital TV Receiving technology is more perfect, and it is wide
It is general to apply in digital television system, but the system is only protected to the transmitting procedure of TV programme, once TV programme quilt
Decryption is just departing from protection.In order to protect the TV programme after decryption, video finger print technology is arisen at the historic moment, and turns into current industry
Focus.
Video finger print refers to that the headend equipment in digital television system issues audio frequency and video different terminal user, often
Individual terminal user possesses oneself different finger print information, and in digital TV field, finger print information can be the card of smart card
Number or set top box number etc..These finger print informations are put into video and play to user by terminal device.If there is
Piracy, then the source of piracy can be finally determined according to the finger print information included in video, so as to realize the mesh of tracing pirate
's.
The video finger print technology that cable television uses is usually to directly display finger print information, such as, by the card number of smart card
Or the number of set top box is directly shown as fingerprint on video, so can intuitively watch very much finger print information
Content.But such finger print information is concentrated very much, is easily wiped free of, and security is not high.
CN201310689514.8 provides a kind of matrix fingerprint generation method, equipment and system, wherein, the matrix refers to
Line generation method includes：Headend equipment is provided for the fingerprint display type that terminal device is shown, in fingerprint matrices choose with
The corresponding fingerprint distributing position of the fingerprint display type, and according to the fingerprint distributing position generator matrix finger print information,
Fingerprint display type and matrix fingerprint information are sent to terminal device again.Therefore, the present invention realizes headend equipment and set and refers to
Line display type and fingerprint distributing position, and require that terminal device sets fingerprint display type according to headend equipment and referred to
Line distributing position display matrix fingerprint, not only add the flexibility of display fingerprint, and the fingerprint shown with matrix distribution formula
It is not easy to be wiped free of, so as to improve piracy tracking ability.
Although matrix fingerprint preferably can prevent fingerprint to be wiped free of, the perception of user is easily influenceed, therefore occur
Vertical fingerprint.It is as follows that the difficulty that vertical fingerprint function runs into is developed at present：Current most of character library does not support the font turning 90 degrees
It has been shown that, and the character library for supporting to turn 90 degrees then uses complexity, price is also higher, influences product cost.
The content of the invention
The purpose of the present invention is to be used for vertical fingerprint implementation method in the prior art in the presence of the character library for supporting to turn 90 degrees
Complexity, price is high, influences the technical problem of product cost, the invention discloses a kind of realization side of the vertical fingerprint of DTV
Method, system is realized the invention also discloses a kind of vertical fingerprint of DTV.
The purpose of the present invention is realized by following technical proposals：
A kind of implementation method of the vertical fingerprint of DTV, it specifically includes following step：Step 1: fingerprint can be used
To each character rotated, postrotational character picture corresponding to making, and establish character and postrotational character picture
Between mapping relations；Step 2: the fingerprint in DTV is received, and after the character lookup corresponding rotation in fingerprint
Character picture；Step 3: sequentially being spliced the character picture found in step 2 vertically, final vertical fingerprint is formed
Picture；Step 4: display interface is called to be shown the vertical fingerprint.Postrotational picture is spliced vertically, so as to
Realize the display of vertical fingerprint.
Further, the angle of above-mentioned rotation is 90 degree.
Further, the above method also includes the total length and width for calculating spliced vertical fingerprint picture, then
Display interface is recalled to be shown the vertical fingerprint.It is easy to call correspondingly sized display window to be shown.
Further, the form of above-mentioned character picture is PNG, JPEG or BMP.Picture is carried out according to no form
Decoding display.
System is realized the invention also discloses a kind of vertical fingerprint of DTV, it specifically includes character picture making mould
Block, finger print acquisition module, vertical fingerprint generation module and vertical fingerprint display module；The character picture making module is used for will
Each character that fingerprint can be used is rotated, postrotational character picture corresponding to making, and establish character with it is postrotational
Mapping relations between character picture；The finger print acquisition module is used to receive the fingerprint in DTV, and according in fingerprint
Character search corresponding rotation after character picture；The vertical fingerprint generation module is used for the character picture that will be found sequentially
Vertical splicing, form final vertical fingerprint picture；The vertical fingerprint display module is used to call display interface by the vertical finger
Line is shown.The system is spliced postrotational picture vertically, so as to realize the display of vertical fingerprint.
Technical scheme more than, the present invention have following beneficial effect：The character of fingerprint content typically
Collection is smaller, only limits digital and a small amount of symbol, the character library for supporting to turn 90 degrees need not be used using the method for the present invention, it is only necessary to will
Character that fingerprint content may be used make corresponding to picture can be realized as the display of vertical fingerprint, reduce product into
This, while also improve the efficiency of running software.
Brief description of the drawings
Fig. 1 is the flow chart of the implementation method of the vertical fingerprint of DTV.
Embodiment
With reference to specific embodiment and Figure of description, the present invention is further detailed explanation.
The flow chart of the implementation method of the vertical fingerprint of DTV of the invention as shown in Figure 1.The invention discloses one
The implementation method of the kind vertical fingerprint of DTV, it specifically includes following step：Step 1: each word that fingerprint can be used
Symbol is rotated, postrotational character picture corresponding to making, and the mapping established between character and postrotational character picture
Relation；Step 2: the fingerprint in DTV is received, and the character in fingerprint searches the character picture after corresponding rotation；
Step 3: sequentially being spliced the character picture found in step 2 vertically, final vertical fingerprint picture is formed；Step
4th, display interface is called to be shown the vertical fingerprint.Postrotational picture is spliced vertically, so as to realize vertical finger
The display of line.
Further, the angle of above-mentioned rotation is 90 degree.By by all characters that may be used in fingerprint all
The character picture being turn 90 degrees corresponding to making, when needing to use which character in fingerprint, just remove the word which is called turn 90 degrees
Picture is accorded with, then all pictures are spliced vertically vertically, so as to realize the display of vertical fingerprint.Character revolves in the present invention
The angle turned can also flexibly be set as needed.The character set of fingerprint content typically is smaller, and only limit is digital and a small amount of
Symbol, the character library for supporting to turn 90 degrees need not be used using the method for the present invention, it is only necessary to the word that may use fingerprint content
Picture corresponding to symbol making can be realized as the display of vertical fingerprint, reduce the cost of product, while also improve software fortune
Capable efficiency.
Further, the above method also includes the total length and width for calculating spliced vertical fingerprint picture, then
Display interface is recalled to be shown the vertical fingerprint.Because the width of each character is different, cause each character picture
Length may be different, calculate total length and width to spliced picture, are easy to call correspondingly sized display window to be shown
Show.
Further, the form of above-mentioned character picture is PNG, JPEG or BMP.Picture is carried out according to no form
Decoding display.
By taking digital 0-9 as an example, the implementation process of the present invention is illustrated.
（1）Turning 90 degrees character picture and being bundled in picture library for character 0 to 9 is made, establishes character 0-9 ASCII character value
With the mapping relations for turning 90 degrees character picture 0-9.
（2）Character pictorial information, including picture name, picture length, figure are turn 90 degrees according to corresponding to being searched character 0-9
Piece width etc..
（3）According to the character sequence of finger print information content, vertical splicing row is carried out to the character pictures that turn 90 degrees found
Sequence.
（4）The total length of the vertical fingerprint picture spliced is recalculated according to character picture 0-9 length, is obtained whole
Individual vertical fingerprint pictorial information, including picture name, picture length, picture width etc..
（5）Corresponding decoding display is carried out according to newly-generated vertical fingerprint picture/mb-type.
System is realized the invention also discloses a kind of vertical fingerprint of DTV, it specifically includes character picture making mould
Block, finger print acquisition module, vertical fingerprint generation module and vertical fingerprint display module；The character picture making module is used for will
Each character that fingerprint can be used is rotated, postrotational character picture corresponding to making, and establish character with it is postrotational
Mapping relations between character picture；The finger print acquisition module is used to receive the fingerprint in DTV, and according in fingerprint
Character search corresponding rotation after character picture；The vertical fingerprint generation module is used for the character picture that will be found sequentially
Vertical splicing, form final vertical fingerprint picture；The vertical fingerprint display module is used to call display interface by the vertical finger
Line is shown.The system is spliced postrotational picture vertically, so as to realize the display of vertical fingerprint.
Presently preferred embodiments of the present invention is above are only above, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (5)
1. a kind of implementation method of the vertical fingerprint of DTV, it specifically includes following step：Step 1: fingerprint can be used
Each character rotated, postrotational character picture corresponding to making, and establish character and postrotational character picture it
Between mapping relations；Step 2: the fingerprint in DTV is received, and the character in fingerprint searches the word after corresponding rotation
Accord with picture；Step 3: sequentially being spliced the character picture found in step 2 vertically, final vertical fingerprint image is formed
Piece；Step 4: display interface is called to be shown the vertical fingerprint.
2. the implementation method of the vertical fingerprint of DTV as claimed in claim 1, it is characterised in that the angle of the rotation is
90 degree.
3. the implementation method of the vertical fingerprint of DTV as claimed in claim 2, it is characterised in that methods described also includes meter
The total length and width of spliced vertical fingerprint picture are calculated, display interface is then recalled and is shown the vertical fingerprint.
4. the implementation method of the vertical fingerprint of DTV as claimed in claim 3, it is characterised in that the lattice of the character picture
Formula is PNG, JPEG or BMP.
5. a kind of vertical fingerprint of DTV realizes system, it is characterised in that specifically includes character picture making module, fingerprint
Acquisition module, vertical fingerprint generation module and vertical fingerprint display module；The character picture making module is used for fingerprint meeting
The each character used is rotated, postrotational character picture corresponding to making, and establishes character and postrotational character figure
Mapping relations between piece；The finger print acquisition module is used to receive the fingerprint in DTV, and the character in fingerprint
Search the character picture after corresponding rotation；The vertical fingerprint generation module is used to sequentially spell the character picture found vertically
Connect, form final vertical fingerprint picture；The vertical fingerprint display module is used to call display interface to carry out the vertical fingerprint
Display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410698113.3A CN104519416B (en) | 2014-11-28 | 2014-11-28 | A kind of method and system of the vertical fingerprint of DTV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410698113.3A CN104519416B (en) | 2014-11-28 | 2014-11-28 | A kind of method and system of the vertical fingerprint of DTV |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104519416A CN104519416A (en) | 2015-04-15 |
| CN104519416B true CN104519416B (en) | 2018-04-06 |
Family
ID=52794038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410698113.3A Active CN104519416B (en) | 2014-11-28 | 2014-11-28 | A kind of method and system of the vertical fingerprint of DTV |
Country Status (1)
| Country | Link |
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| CN (1) | CN104519416B (en) |
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| CN101257545A (en) * | 2007-02-27 | 2008-09-03 | 冲电气工业株式会社 | Image processing device, method and computer program |
| CN102881034A (en) * | 2012-05-14 | 2013-01-16 | 珠海金山办公软件有限公司 | System and method for inserting watermarks into application document |
| CN103686333A (en) * | 2013-12-19 | 2014-03-26 | 深圳市九洲电器有限公司 | Audio video protecting method and audio video terminal |
| CN103796038A (en) * | 2014-01-28 | 2014-05-14 | 北京视博数字电视科技有限公司 | Dot matrix fingerprint generation method, equipment and system |
Family Cites Families (4)
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| US8600113B2 (en) * | 2004-11-12 | 2013-12-03 | The University Court Of The University Of St. Andrews | System, method and computer program product for video fingerprinting |
| JP4569622B2 (en) * | 2007-12-18 | 2010-10-27 | 富士ゼロックス株式会社 | Image processing apparatus and image processing program |
| US9087337B2 (en) * | 2008-10-03 | 2015-07-21 | Google Inc. | Displaying vertical content on small display devices |
| CN102655498A (en) * | 2011-03-04 | 2012-09-05 | 董建飞 | Method for outputting dynamic password through videos |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101048784A (en) * | 2004-09-03 | 2007-10-03 | Bfivdeh-应用研究院有限公司 | Method for assigning a digital image to a class of a classification system |
| CN101257545A (en) * | 2007-02-27 | 2008-09-03 | 冲电气工业株式会社 | Image processing device, method and computer program |
| CN102881034A (en) * | 2012-05-14 | 2013-01-16 | 珠海金山办公软件有限公司 | System and method for inserting watermarks into application document |
| CN103686333A (en) * | 2013-12-19 | 2014-03-26 | 深圳市九洲电器有限公司 | Audio video protecting method and audio video terminal |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104519416A (en) | 2015-04-15 |
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Application publication date: 20150415 Assignee: Sichuan Changhong Xinwang Technology Co.,Ltd. Assignor: SICHUAN CHANGHONG ELECTRIC Co.,Ltd. Contract record no.: X2023980043949 Denomination of invention: A Method and System for Implementing Vertical Fingerprint in Digital Television Granted publication date: 20180406 License type: Common License Record date: 20231030 |