CN106911903A - A kind of SDR signals turn the image quality data processing method of HDR signal effects - Google Patents
A kind of SDR signals turn the image quality data processing method of HDR signal effects Download PDFInfo
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- CN106911903A CN106911903A CN201710153312.XA CN201710153312A CN106911903A CN 106911903 A CN106911903 A CN 106911903A CN 201710153312 A CN201710153312 A CN 201710153312A CN 106911903 A CN106911903 A CN 106911903A
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- hdr
- sdr
- signal
- image quality
- processing method
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
Abstract
The present invention relates to the image quality switch technology in digital TV field, it discloses the image quality data processing method that a kind of SDR signals turn HDR signal effects, avoid when SDR turns HDR, image quality data are obscured with HDR states and common signal condition, so as to cause data call chaotic.The processing method includes:First against each signal format of TV, the parameter for processing respectively will be needed to put together in signal processing, merger is parameter group corresponding with signal format, the a type of signal format of each parameter group correspondence, then according to different signal processing modes, different values are assigned to the parameter in parameter group:When SDR turns HDR signal transactings, the data of SDR states are entered as, when HDR signal transactings, are entered as the data of HDR states, so as to form distinguishing data group.
Description
Technical field
The present invention relates to the image quality switch technology in digital TV field, and in particular to a kind of SDR (Standard-
Dynamic Range critical fields image) signal turns HDR (High-Dynamic Range high dynamic range images) signal effect
Image quality data processing method.
Background technology
Current television image treatment Display Technique main flow is SDR, with screen display and the development of signal processing technology, is occurred
HDR technologies.HDR signals are processed and shown, impression quality can be greatly lifted, is made the bright sense of image, third dimension more
By force, gamut range is wider, and its image quality effect receives and as a kind of fashion trend for everybody is common.
Because HDR signals are also fewer at present, what main flow was present is SDR signals, but everybody wishes to watching SDR signals
When it can be seen that HDR effects, accordingly, it would be desirable to SDR signals are switched into HDR signals show, reach what a kind of HDR showed
Effect.
SDR is turned into HDR treatment two ways at present, and one kind is changed by LCDs, and one kind is in electricity
Changed depending on machine movement die terminals, what the present invention was discussed is a kind for the treatment of side of the data file when die terminals are changed
Formula.
The content of the invention
The technical problems to be solved by the invention are:Propose that a kind of SDR signals turn the image quality data processing of HDR signal effects
Method, it is to avoid when SDR turns HDR, image quality data are obscured with HDR states and common signal condition, so as to cause data to adjust
With confusion.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of SDR signals turn the image quality data processing method of HDR signal effects, including:
First against each signal format of TV, the parameter for processing respectively will be needed to put together in signal processing,
Merger is parameter group corresponding with signal format, a type of signal format of each parameter group correspondence, then according to difference
Signal processing mode, assign different values to the parameter in parameter group:When SDR turns HDR signal transactings, SDR shapes are entered as
The data of state, when HDR signal transactings, are entered as the data of HDR states, so as to form distinguishing data group.
Used as further optimization, the method also includes:
In TV software system operation, according to the signal format of input, corresponding data group is called respectively, reach difference
Display effect.
It is described to need the parameter for processing respectively to include as further optimization:Definition, noise reduction, dynamic depth, colored sky
Between, HDR state parameters these relevant parameters.
Used as further optimization, the processing method is applied to carry out the DTV that SDR turns HDR treatment in die terminals
Machine.
Used as further optimization, the processing method devises HDR signals under tri- kinds of signalling channels of HDMI, USB, NET
The packet of state, under HDMI, USB, NET and DTV DTV forms this several signalling channels devising SDR turns at HDR
The packet of reason state.
The beneficial effects of the invention are as follows:
Image quality data are grouped at movement end, make television set display normal tv signal and SDR turn HDR signals,
During HDR signals, effect independence is mutually unaffected.
Specific embodiment
The present invention is directed to propose a kind of SDR signals turn the image quality data processing method of HDR signal effects, it is to avoid turn in SDR
During HDR, image quality data are obscured with HDR states and common signal condition, so as to cause data call chaotic.
Turn HDR for SDR, from signal processing flow for, SDR signals are first had in SDR turns HDR modules, are switched to
A kind of special HDR signals (the real HDR signals that a kind of simulation normal photographing is produced), then by normal HDR signals
Processing procedure, finally shows.SDR turns HDR signals and real HDR signals, in addition to signal format transfer process difference,
In follow-up signal processing flow, identical data parameters are used, but the specific assignment of parameter is differed, for example
Luminance parameter, 82H may be entered as when SDR turns HDR signals, but in HDR signals, be entered as 80H, thus process this two
Difference is needed to use when planting signal.
The present invention first against each signal format of TV, in needing the parameter set for processing respectively in signal processing
Get up, merger is parameter group corresponding with signal format, each parameter group corresponds to a type of signal format, then basis
Different signal processing modes, different values are assigned to the parameter in parameter group:When SDR turns HDR signal transactings, it is entered as
The data of SDR states, when HDR signal transactings, are entered as the data of HDR states, so as to form distinguishing data group.
The Packet State of whole set of television parameter is as shown in the table:
Sequence number | Packet | Remarks | Sequence number | Packet | Remarks |
1 | TV-PAL | 13 | HDMI-HDR | HDR signals | |
2 | TV-NTSC | 14 | HDMI-SDR | SDR turns HDR | |
3 | DTV-SD | 15 | VGA | ||
4 | DTV-HD | 16 | NET-SD | ||
5 | DTV-SDR | SDR turns HDR | 17 | NET-HD | |
6 | AV-PAL | 18 | NET-UD | ||
7 | AV-NTSC | 19 | NET-HDR | Network HDR signals | |
8 | YPBPR-SD | 20 | NET-SDR | SDR turns HDR | |
9 | YPBPR-HD | 21 | USB-SD | ||
10 | HDMI-SD | 22 | USB-HD | ||
11 | HDMI-HD | 23 | USB-UR | ||
12 | HDMI-UD | 24 | USB-HDR | HDR signals | |
25 | USB-SDR | SDR turns HDR |
Due to current real HDR signals, only three kinds of forms of HDMI, USB, NET network, and digital television broadcasting does not have also
Start broadcasting, therefore the packet of HDR signal conditions is only devised under tri- kinds of signalling channels of HDMI, USB, NET;
And common SDR signals, due to the factor of signal quality, digital letter only considered to SDR conversions HDR in the present invention
Number form (including HDMI, USB, NET and DTV DTV forms), and analog signal ATV, AV, YCBCR and VGA lattice
Formula, then do not consider that carrying out SDR turns HDR treatment.
Each packet in upper table, contains each relevant parameter of PQ treatment, such as definition, noise reduction, dynamic depth, coloured silk
The colour space, HDR state parameters etc. each relevant parameter, simply according to different signal processing modes, assignment is different.
TV system software operationally, according to the signal format of input, calls different parameter groups respectively, reaches difference
Display effect, when normal tv signal and SDR is turned HDR signals, HDR signal transactings, effect independence, mutually it is unaffected.
Claims (5)
1. a kind of SDR signals turn the image quality data processing method of HDR signal effects, it is characterised in that including:
First against each signal format of TV, the parameter for processing respectively will be needed to put together in signal processing, merger
It is parameter group corresponding with signal format, a type of signal format of each parameter group correspondence, then according to different letters
Number processing mode, different values are assigned to the parameter in parameter group:When SDR turns HDR signal transactings, SDR states are entered as
Data, when HDR signal transactings, are entered as the data of HDR states, so as to form distinguishing data group.
2. a kind of SDR signals as claimed in claim 1 turn the image quality data processing method of HDR signal effects, it is characterised in that
The method also includes:
In TV software system operation, according to the signal format of input, corresponding data group is called respectively, reach different showing
Show effect.
3. a kind of SDR signals as claimed in claim 1 turn the image quality data processing method of HDR signal effects, it is characterised in that
It is described to need the parameter for processing respectively to include:These are related for definition, noise reduction, dynamic depth, color space, HDR state parameters
Parameter.
4. a kind of SDR signals as claimed in claim 1 turn the image quality data processing method of HDR signal effects, it is characterised in that
The processing method is applied to carry out the digital television that SDR turns HDR treatment in die terminals.
5. a kind of SDR signals as claimed in claim 1 turn the image quality data processing method of HDR signal effects, it is characterised in that
The processing method devises the packet of HDR signal conditions under tri- kinds of signalling channels of HDMI, USB, NET, HDMI, USB,
SDR is devised under NET and DTV DTV forms this several signalling channels and turns the packet that HDR processes state.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114422718A (en) * | 2022-01-19 | 2022-04-29 | 北京百度网讯科技有限公司 | Video conversion method and device, electronic equipment and storage medium |
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CN106030503A (en) * | 2014-02-25 | 2016-10-12 | 苹果公司 | Adaptive video processing |
CN106105177A (en) * | 2014-06-10 | 2016-11-09 | 松下知识产权经营株式会社 | Alternative approach and converting means |
CN106128412A (en) * | 2016-08-30 | 2016-11-16 | 南京巨鲨显示科技有限公司 | A kind of YUV based on embedded device and RGB color territory conversion method |
CN106210921A (en) * | 2016-08-12 | 2016-12-07 | 深圳创维-Rgb电子有限公司 | A kind of image effect method for improving and device thereof |
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Patent Citations (6)
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CN103069809A (en) * | 2010-08-25 | 2013-04-24 | 杜比实验室特许公司 | Extending image dynamic range |
CN106030503A (en) * | 2014-02-25 | 2016-10-12 | 苹果公司 | Adaptive video processing |
CN106105177A (en) * | 2014-06-10 | 2016-11-09 | 松下知识产权经营株式会社 | Alternative approach and converting means |
CN105979370A (en) * | 2016-07-01 | 2016-09-28 | 深圳创维-Rgb电子有限公司 | Method and device for configuring image model |
CN106210921A (en) * | 2016-08-12 | 2016-12-07 | 深圳创维-Rgb电子有限公司 | A kind of image effect method for improving and device thereof |
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