CN104519416A - Digital television vertical fingerprint implementing method and system - Google Patents
Digital television vertical fingerprint implementing method and system Download PDFInfo
- Publication number
- CN104519416A CN104519416A CN201410698113.3A CN201410698113A CN104519416A CN 104519416 A CN104519416 A CN 104519416A CN 201410698113 A CN201410698113 A CN 201410698113A CN 104519416 A CN104519416 A CN 104519416A
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- Prior art keywords
- fingerprint
- character
- vertical
- picture
- digital television
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000013507 mapping Methods 0.000 claims abstract description 8
- 239000011159 matrix material Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000006870 function Effects 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]
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Collating Specific Patterns (AREA)
Abstract
The invention relates to the technical field of digital television and discloses a digital television vertical fingerprint implementing method. The digital television vertical fingerprint implementing method includes 1, rotating characters to be used for fingerprint, making corresponding rotated character images and establishing a mapping relation between the characters and the rotated character images; 2, receiving a fingerprint of the digital television and searching the rotated character images according to the characters of the fingerprint; 3, sequentially subjecting the searched character images to vertical matching, and ultimately a vertical fingerprint image is formed; 4, calling a display interface to display the vertical fingerprint. The invention further discloses a digital television vertical fingerprint implementing system.
Description
Technical field
The present invention relates to digital television techniques field, the invention discloses implementation method and the system of the vertical fingerprint of a kind of Digital Television.
Background technology
Condition reception is the core component of Digital Television; although Digital TV Receiving technology is comparatively perfect; and be widely used in digital television system, but this system is only protected the transmitting procedure of TV programme, has just departed from protection once TV programme is decrypted.In order to protect the TV programme after deciphering, video finger print technology is arisen at the historic moment, and becomes the focus of current industry.
Video finger print refers to that audio frequency and video are issued different terminal user by the headend equipment in digital television system, each terminal user has oneself different finger print information, at digital TV field, finger print information can be the card number of smart card or the number of Set Top Box etc.These finger print informations are put in video and are played to user by terminal equipment.If there is piracy, then can finally determine pirate source according to the finger print information comprised in video, thus realize the object of tracing pirate.
The video finger print technology that cable TV adopts is generally directly show finger print information, such as, the card number of smart card or the number of Set Top Box is directly shown on video as fingerprint, can watch the content of finger print information so very intuitively.But such finger print information is very concentrated, is easily wiped free of, fail safe is not high.
CN201310689514.8 provides a kind of matrix fingerprint and generates method, apparatus and system, wherein, described matrix fingerprint generation method comprises: headend equipment arranges the fingerprint display type being used for terminal equipment display, the fingerprint distributing position corresponding with described fingerprint display type is chosen in fingerprint matrices, and according to described fingerprint distributing position generator matrix finger print information, then fingerprint display type and matrix fingerprint information are sent to terminal equipment.Therefore, present invention achieves headend equipment and fingerprint display type and fingerprint distributing position are set, and require that terminal equipment arranges fingerprint display type and fingerprint distributing position display matrix fingerprint according to headend equipment, not only add the flexibility of display fingerprint, and be not easy to be wiped free of with the fingerprint of matrix distribution formula display, thus improve piracy tracking ability.
Although matrix fingerprint can prevent fingerprint to be wiped free of preferably, easily affect the perception of user, therefore occurred vertical fingerprint.The difficulty that the vertical fingerprint function of current exploitation runs into is as follows: current most of character library does not support the font display turn 90 degrees, and support that the character library turn 90 degrees then uses complexity, price is also higher, affects product cost.
Summary of the invention
The object of the invention is to there is for fingerprint implementation method vertical in prior art the character library supporting to turn 90 degrees uses complicated, price is high, affect the technical problem of product cost, the invention discloses the implementation method of the vertical fingerprint of a kind of Digital Television, what the invention also discloses the vertical fingerprint of a kind of Digital Television realizes system.
Object of the present invention is realized by following technical proposals:
The implementation method of the vertical fingerprint of a kind of Digital Television, it specifically comprises the following steps: step one, each character can used by fingerprint rotates, make corresponding postrotational character picture, and set up the mapping relations between character and postrotational character picture; Fingerprint in step 2, receiving digital television, and search the character picture after corresponding rotation according to the character in fingerprint; Step 3, sequentially the character picture found in step 2 vertically to be spliced, form final vertical fingerprint picture; Step 4, call display interface this vertical fingerprint is shown.Postrotational picture is vertically spliced, thus realizes the display of vertical fingerprint.
Further, the angle of above-mentioned rotation is 90 degree.
Further, said method also comprises the total length and width that calculate spliced vertical fingerprint picture, and then calls display interface and shown by this vertical fingerprint.The display window being convenient to call corresponding size shows.
Further, the form of above-mentioned character picture is PNG, JPEG or BMP.Picture decode display is carried out according to no form.
What the invention also discloses the vertical fingerprint of a kind of Digital Television realizes system, and it specifically comprises character picture making module, finger print acquisition module, vertically fingerprint generation module and vertical fingerprint display module; Each character that described character picture making module is used for fingerprint to use rotates, and makes corresponding postrotational character picture, and sets up the mapping relations between character and postrotational character picture; Described finger print acquisition module is used for the fingerprint in receiving digital television, and searches the character picture after corresponding rotation according to the character in fingerprint; Described vertical fingerprint generation module is used for the character picture found sequentially vertically to splice, and forms final vertically fingerprint picture; Described vertical fingerprint display module is used for calling display interface and is shown by this vertical fingerprint.Postrotational picture vertically splices by this system, thus realizes the display of vertical fingerprint.
By adopting above technical scheme, the present invention has following beneficial effect: fingerprint content character set is generally less, only for numeral and a small amount of symbol, method of the present invention is adopted not need to use the character library supporting to turn 90 degrees, character fingerprint content may used only is needed to make the display that corresponding picture just can realize vertical fingerprint, reduce the cost of product, also improve the efficiency of running software simultaneously.
Accompanying drawing explanation
Fig. 1 is the flow chart of the implementation method of the vertical fingerprint of Digital Television.
Embodiment
Below in conjunction with 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 Digital Television of the present invention as shown in Figure 1.The invention discloses the implementation method of the vertical fingerprint of a kind of Digital Television, it specifically comprises the following steps: step one, each character can used by fingerprint rotates, make corresponding postrotational character picture, and set up the mapping relations between character and postrotational character picture; Fingerprint in step 2, receiving digital television, and search the character picture after corresponding rotation according to the character in fingerprint; Step 3, sequentially the character picture found in step 2 vertically to be spliced, form final vertical fingerprint picture; Step 4, call display interface this vertical fingerprint is shown.Postrotational picture is vertically spliced, thus realizes the display of vertical fingerprint.
Further, the angle of above-mentioned rotation is 90 degree.By all characters may used in fingerprint all being made the corresponding character picture turn 90 degrees, when needing to use which character in fingerprint, just remove to call the character picture which turn 90 degrees, then all pictures are vertically spliced, thus realize the display of vertical fingerprint.The angle that in the present invention, character rotates also can set as required flexibly.Fingerprint content character set is generally less, only for numeral and a small amount of symbol, method of the present invention is adopted not need to use the character library supporting to turn 90 degrees, character fingerprint content may used only is needed to make the display that corresponding picture just can realize vertical fingerprint, reduce the cost of product, also improve the efficiency of running software simultaneously.
Further, said method also comprises the total length and width that calculate spliced vertical fingerprint picture, and then calls display interface and shown by this vertical fingerprint.Because the width of each character is different, cause the length possibility of each character picture different, calculate total length and width to spliced picture, the display window being convenient to call corresponding size shows.
Further, the form of above-mentioned character picture is PNG, JPEG or BMP.Picture decode display is carried out according to no form.
For digital 0-9, illustrate implementation procedure of the present invention.
(1). make turning 90 degrees character picture and being bundled in picture library of character 0 to 9, set up the ASCII character value of character 0-9 and turn 90 degrees the mapping relations of character picture 0-9.
(2). search according to character 0-9 and corresponding turn 90 degrees character pictorial information, comprise picture name, figure leaf length, picture width etc.
(3). according to the character sequence of finger print information content, vertically sequence is spliced to the character pictures that turn 90 degrees found.
(4). recalculate the total length of the vertical fingerprint picture spliced according to the length of character picture 0-9, obtain whole vertical fingerprint pictorial information, comprise picture name, figure leaf length, picture width etc.
(5). to decode accordingly display according to newly-generated vertical fingerprint picture/mb-type.
What the invention also discloses the vertical fingerprint of a kind of Digital Television realizes system, and it specifically comprises character picture making module, finger print acquisition module, vertically fingerprint generation module and vertical fingerprint display module; Each character that described character picture making module is used for fingerprint to use rotates, and makes corresponding postrotational character picture, and sets up the mapping relations between character and postrotational character picture; Described finger print acquisition module is used for the fingerprint in receiving digital television, and searches the character picture after corresponding rotation according to the character in fingerprint; Described vertical fingerprint generation module is used for the character picture found sequentially vertically to splice, and forms final vertically fingerprint picture; Described vertical fingerprint display module is used for calling display interface and is shown by this vertical fingerprint.Postrotational picture vertically splices by this system, thus realizes the display of vertical fingerprint.
More than above are only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. the implementation method of the vertical fingerprint of Digital Television, it specifically comprises the following steps: step one, each character can used by fingerprint rotates, make corresponding postrotational character picture, and set up the mapping relations between character and postrotational character picture; Fingerprint in step 2, receiving digital television, and search the character picture after corresponding rotation according to the character in fingerprint; Step 3, sequentially the character picture found in step 2 vertically to be spliced, form final vertical fingerprint picture; Step 4, call display interface this vertical fingerprint is shown.
2. the implementation method of the vertical fingerprint of Digital Television as claimed in claim 1, is characterized in that the angle of described rotation is 90 degree.
3. the implementation method of the vertical fingerprint of Digital Television as claimed in claim 2, is characterized in that described method also comprises the total length and width calculating spliced vertical fingerprint picture, and then calls display interface and shown by this vertical fingerprint.
4. the implementation method of the vertical fingerprint of Digital Television as claimed in claim 3, is characterized in that the form of described character picture is PNG, JPEG or BMP.
5. the vertical fingerprint of Digital Television realize a system, it is characterized in that specifically comprising character picture making module, finger print acquisition module, vertically fingerprint generation module and vertical fingerprint display module; Each character that described character picture making module is used for fingerprint to use rotates, and makes corresponding postrotational character picture, and sets up the mapping relations between character and postrotational character picture; Described finger print acquisition module is used for the fingerprint in receiving digital television, and searches the character picture after corresponding rotation according to the character in fingerprint; Described vertical fingerprint generation module is used for the character picture found sequentially vertically to splice, and forms final vertically fingerprint picture; Described vertical fingerprint display module is used for calling display interface and is shown by this vertical fingerprint.
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 |
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| CN201410698113.3A CN104519416B (en) | 2014-11-28 | 2014-11-28 | A kind of method and system of the vertical fingerprint of DTV |
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| CN104519416A true CN104519416A (en) | 2015-04-15 |
| CN104519416B CN104519416B (en) | 2018-04-06 |
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| 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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- 2014-11-28 CN CN201410698113.3A patent/CN104519416B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| US20060103732A1 (en) * | 2004-11-12 | 2006-05-18 | The University Court Of The University Of St Andrews | System, method & computer program product for video fingerprinting |
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| CN104519416B (en) | 2018-04-06 |
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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 |