CN107682673A - A kind of method that 4KHDR and HDSDR signals are supervised based on GPU and video IO cards simultaneously - Google Patents
A kind of method that 4KHDR and HDSDR signals are supervised based on GPU and video IO cards simultaneously Download PDFInfo
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- CN107682673A CN107682673A CN201710929967.1A CN201710929967A CN107682673A CN 107682673 A CN107682673 A CN 107682673A CN 201710929967 A CN201710929967 A CN 201710929967A CN 107682673 A CN107682673 A CN 107682673A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
Abstract
The invention discloses a kind of method for supervising 4KHDR and HDSDR signals simultaneously based on GPU and video IO cards, the raw data with HDR information is imported into GPU processing, obtains HD SDR signals and 4K HDR signals；The HD SDR signals are exported to attached display from the GPU HDMIs carried, the 4K HDR signals are exported to HDR monitors from I/O cards, so as to realize while supervise 4K HDR and HD SDR signals；It can be realized using this method while supervise 4K HDR and HD SDR signals, peripheral hardware will not be accessed, deployment is simple, and on-site maintenance difficulty is small, and cost is low, highly effective.
Description
Technical field
The invention belongs to show field of signal processing, and in particular to one kind supervises 4KHDR simultaneously based on GPU and video IO cards
With the method for HDSDR signals.
Background technology
With the development in an all-round way of 4K technologies, wherein tolerance dynamic range is also by SDR (Standard Dynamic
Range HDR (High Dynamic Range)) is developed into, the development of tolerance dynamic range can be that spectators bring more high definition
Picture clear and rich in stereovision.But current family PC terminals only support viewing HD SDR videos mostly, therefore, in editing
During 4K HDR programs, it is still desirable to take into account HD SDR pictures, accomplish 4K HDR and HD SDR while make.
Realize that the scheme for making 4K HDR and HD SDR pictures simultaneously is as follows at present：
1. 4K HDR and HD SDR signals are exported using same board simultaneously.Because same I O board card can not export simultaneously
4K HDR and HD SDR signals, if therefore editor need to supervise the picture under two kinds of signals, need not stop to change monitor parameter
Set.This mode can not realize 4K HDR and HD SDR pictures contrast, at the same seem it is cumbersome with it is inconvenient.
2. built-in board is added to export 4K HDR and HD SDR signals respectively using outlaid board-card.4K is high at present can not with machine
Two I O board cards are inserted simultaneously, it is therefore desirable to are accessed external board, realized with this while export 4K HDR and HD SDR signals.This
Although kind mode realizes while supervises 4K HDR and HD SDR pictures, but due to accessing peripheral hardware, will take exceptional space, unfavorable
Safeguarded in Field Force, while add equipment cost.
3. output 4K HDR and HD SDR signals are combined using IO cards plus interconnecting device.By IO cards export 4K HDR signals to
Interconnecting device, interconnecting device export 4K HDR signals and HD SDR signals simultaneously again.This mode equally accesses peripheral hardware, adds equipment
Cost and maintenance difficulties, while line is more complicated.
The content of the invention
It is an object of the invention to：There is provided and a kind of based on GPU and video IO cards while supervise 4KHDR and HDSDR signals
Method, solve at present using external equipment realize and meanwhile supervise 4K HDR and HD SDR signals space-consuming greatly, plant maintenance
Difficult technical problem.
The technical solution adopted by the present invention is as follows：
A kind of method that 4KHDR and HDSDR signals are supervised based on GPU and video IO cards simultaneously, by the original with HDR information
Beginning material imports GPU processing, obtains HD SDR signals and 4K HDR signals；By the HD SDR signals from the GPU from
The HDMI of band is exported to attached display, and the 4K HDR signals are exported to HDR monitors from I/O cards, same so as to realize
When supervise 4K HDR and HD SDR signals.
Further, comprised the following steps that using what GPU was handled：
Step 1：Raw data with HDR information is imported to the nonlinear editing system of the GPU；
Step 2：The raw data is parsed using the nonlinear editing system, automatically identifies the raw data
Color information；
Step 3：Newly-built 4K HDR timelines, according to the color information, using automatic color management algorithm, by the element
Material is transformed under the 4K HDR timeline colour gamuts, and is rendered using rendering engine, obtains 4K HDR signals；
Step 4：Gamma transformation and breadth conversion will be carried out while the 4K HDR signal outputs, obtain HD SDR letters
Number.
Further, the nonlinear editing system creates GPU resource, and the HD SDR signals utilize the GPU resource
Exported by HDMI, the HDMI connects display.
Further, the 4K HDR signal downlinks export to I/O cards again after exporting to internal memory, obtain carrying HDR information
4K sdi signals, the 4K sdi signals are inputted to the supervision for HDR monitors, realizing 4K HDR pictures.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1. can realize using this method while supervise 4K HDR and HD SDR signals, accomplish intuitively to see that the interface exists
4K HDR and HD SDR color effect, convenient toning.
2. only need support HDMI display, it is not necessary to which professional monitor supervises HD SDR signals.Substantially reduce
The cost of monitoring device, by a monitor is tens thousand of is reduced to the thousands of members of display.
3. display, for monitor, deployment is simple, and easy to maintenance, almost everybody can set connection.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the integrated stand composition of the present invention.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
The present invention is elaborated with reference to Fig. 1.
A kind of method that 4KHDR and HDSDR signals are supervised based on GPU and video IO cards simultaneously, by the original with HDR information
Beginning material imports GPU processing, obtains HD SDR signals and 4K HDR signals；By the HD SDR signals from the GPU from
The HDMI of band is exported to attached display, by the 4K HDR signals from the output of I/O cards to HDR monitors, described in setting
HDR monitors and attached display are tiled pattern.
Raw data with HDR information is imported to the nonlinear editing system of the GPU；Utilize the non-linear editing
Raw data described in system analysis, automatically identify the color information of the raw data；Newly-built 4K HDR timelines, according to institute
Color information is stated, using automatic color management algorithm, the material is transformed under the 4K HDR timeline colour gamuts, and is utilized
Rendering engine is rendered, and obtains 4K HDR signals；Gamma transformation and breadth will be carried out while the 4K HDR signal outputs
Conversion, zooms in and out to color space, obtains HD Rec.709 signals.
In software using the nonlinear editing system, an irremovable full screen window is created, will be described full frame
Window tiles to attached display, and the breadth size of window is just the breadth size of HD SDR signals, i.e. 1920*1080；
The nonlinear editing system also needs to create GPU resource, and the HD Rec.709 signals pass through HDMI using the GPU resource
Interface exports, and the HDMI connects attached display.
The 4K HDR signal downlinks export again after exporting to internal memory to I/O cards, obtains the 4K SDI with HDR information
Signal, the 4K sdi signals are inputted to the supervision for HDR monitors, realizing 4K HDR pictures.
Claims (4)
- A kind of 1. method that 4KHDR and HDSDR signals are supervised based on GPU and video IO cards simultaneously, it is characterised in that：It will carry The raw data of HDR information imports GPU processing, obtains HD SDR signals and 4K HDR signals；By the HD SDR signals The HDMI carried from the GPU is exported to attached display, and the 4K HDR signals are exported to HDR monitors from I/O cards, So as to realize while supervise 4K HDR and HD SDR signals.
- 2. a kind of method that 4KHDR and HDSDR signals are supervised based on GPU and video IO cards simultaneously according to claim 1, It is characterized in that：Comprised the following steps that using what GPU was handled：Step 1：Raw data with HDR information is imported to the nonlinear editing system of the GPU；Step 2：The raw data is parsed using the nonlinear editing system, automatically identifies the color of the raw data Information；Step 3：Newly-built 4K HDR timelines, according to the color information, using automatic color management algorithm, the material is turned Change under the 4K HDR timeline colour gamuts, and rendered using rendering engine, obtain 4K HDR signals；Step 4：Gamma transformation and breadth conversion will be carried out while the 4K HDR signal outputs, obtain HD SDR signals.
- 3. a kind of method that 4KHDR and HDSDR signals are supervised based on GPU and video IO cards simultaneously according to claim 2, It is characterized in that：The nonlinear editing system creates GPU resource, and the HD SDR signals are passed through using the GPU resource HDMI exports, and the HDMI connects attached display.
- 4. a kind of method that 4KHDR and HDSDR signals are supervised based on GPU and video IO cards simultaneously according to claim 1, It is characterized in that：The 4K HDR signal downlinks export again after exporting to internal memory to I/O cards, obtains the 4K with HDR information Sdi signal, the 4K sdi signals are inputted to the supervision for HDR monitors, realizing 4K HDR pictures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710929967.1A CN107682673B (en) | 2017-10-09 | 2017-10-09 | A method of 4KHDR and HDSDR signal is supervised based on GPU and video IO card simultaneously |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710929967.1A CN107682673B (en) | 2017-10-09 | 2017-10-09 | A method of 4KHDR and HDSDR signal is supervised based on GPU and video IO card simultaneously |
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| Publication Number | Publication Date |
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| CN107682673A true CN107682673A (en) | 2018-02-09 |
| CN107682673B CN107682673B (en) | 2019-11-12 |
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| CN109146822A (en) * | 2018-09-05 | 2019-01-04 | 成都索贝数码科技股份有限公司 | A method of equipment simulating HDR monitor is shown using SDR |
| CN109327734A (en) * | 2018-11-27 | 2019-02-12 | 成都索贝数码科技股份有限公司 | A method of HDR video that surveying light based on dynamic downconverts to SDR video |
| CN111741232A (en) * | 2020-08-11 | 2020-10-02 | 成都索贝数码科技股份有限公司 | Method for improving ultra-high-definition non-editing performance based on dual-display card NVLINK |
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