CN110460870A - The production of 4K-HDR live show and live broadcasting method - Google Patents
The production of 4K-HDR live show and live broadcasting method Download PDFInfo
- Publication number
- CN110460870A CN110460870A CN201910794719.XA CN201910794719A CN110460870A CN 110460870 A CN110460870 A CN 110460870A CN 201910794719 A CN201910794719 A CN 201910794719A CN 110460870 A CN110460870 A CN 110460870A
- Authority
- CN
- China
- Prior art keywords
- hdr
- parameter
- live
- broadcasting method
- production
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005286 illumination Methods 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 230000009467 reduction Effects 0.000 claims description 4
- 230000002441 reversible effect Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 229910017435 S2 In Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 description 17
- 238000012360 testing method Methods 0.000 description 4
- 230000002860 competitive effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010017472 Fumbling Diseases 0.000 description 1
- 241001062009 Indigofera Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
-
- 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
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
-
- 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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
-
- 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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
-
- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
The invention proposes a kind of production of 4K-HDR live show and live broadcasting methods, comprising: analyzes program scene type, HDR and colour gamut basis match parameter are arranged based on the analysis results；According to actual scene, HDR parameter is set, HDR and SDR image relative contrast and tolerance are set；According to personage's main body illumination, basic exposure point is set；According to the HDR and colour gamut basis match parameter, HDR parameter, HDR and SDR image relative contrast and tolerance, basic exposure point, ALT-CH alternate channel parameter is set；According to the scene of setting, corresponding color parameter setting is matched, realizes Color control；To the program to complete through the above steps, it is broadcast live using 4K HDR signal.The present invention avoid currently being easy to appear due to making standard disunity, HDR and the case where the SDR signal of conversion often goes wrong simultaneously builds maximum adjustment space for later-stage secondary production and promotes producing efficiency.
Description
Technical field
The present invention relates to technical field of video processing, in particular to a kind of 4K-HDR live show production and live broadcasting method.
Background technique
It is made in broadcasting and TV, especially 4K HDR field fabrication aspect, at present also in the primary stage of fumbling.Some TV stations
There are some experiences and a small amount of case with a small number of manufacturing mechanisms, but in terms of process, there are no unified standards.For HDR
The Objective and subjective evaluations of image lack practical experience, in addition front end production, occurs in links standard disunity in process
The totally different situation of effect is broadcasted with rear end, and can not determine which link of bottom goes wrong.It flourishes the stage in 4K industry,
4K content is presented quality determines whether spectators can be to 4K good results, to pull the demand of entire industry.As in industry
Early start studies the unit of 4K HDR field fabrication, we pass through debugging, experiment and constantly by accumulating experience for a long time
The problem of optimizing, each link is easy to appear summarizes and finds solution, makes every effort to fundamentally solve current 4K HDR
Field fabrication guarantees that the effect on arrival spectators' video screen reaches best until the perfect of link whole in broadcast and uniformly.
The current main problem and deficiency:
One, 4K HDR field fabrication aspect lacks subjectiveness and objectiveness detail criteria
1, the subjective evaluating standard vacancy of HDR: at present there has been no unified industry standard, making under HLG standard, image
How ensemble average brightness value, peak brightness define (subjective feeling)；
2, the colour of skin control under HDR: the average value of the picture main body (character face) under normal exposure is needed with reference to model
It encloses, as the studio face of about 70% white appliances level values under SDR exposes empirical value；
3, subtitle and packaging standard under HDR and wide colour gamut: in HDR field fabrication, the brightness of subtitle is not standardized still；Packet
Production specification (how to take into account icon effects consistency SDR under) of the dress system at HDR and wide colour gamut；
4, HDR and SDR take into account: being made by 4K HDR/ wide color gamut systems, it is straight how to take into account current HD SDR
Broadcast demand, picture can effect as far as possible close to (subjective feeling of different spectators' different terminals is without too large deviation), otherwise may
Influence the broadcast effect of normal HD SDR；
5, HDR display effect optimizes: HLG HDR, BT2020 gamut standards picture directly export on SDR screen, are drawing
Whether have optimization space in the state modulator of face, avoid HLG in SDR display in bad color and contrast reduction.
Two, how 4K HDR live signal transmission can correctly show in terminal
1, the HLG standard HDR signal that current broadcasting and TV use leads to domestic consumer such as due to itself not having metadata insertion
Fruit does not understand how setting HDR TV, may see the HDR effect of mistake, influence viewing experience.
2, common SDR 4K or HD SDR TV, receive the HDR of falling 4K HLG signal after, it is seen that picture saturation degree it is relatively low,
Tone is dim, ineffective, the same visual experience for influencing viewing.
3, it is based on existing bandwidth and set-top box conditional, according to heterogeneous networks and the different demands such as wired, sets reasonable pass
Defeated Signal coding standard, finds in terms of efficiency, image quality and takes into account a little, just can guarantee the viewing effect that each side can obtain.
Summary of the invention
The purpose of the present invention aims to solve at least one of described technological deficiency.
For this purpose, it is an object of the invention to propose a kind of production of 4K-HDR live show and live broadcasting method.
To achieve the goals above, the embodiment of the present invention provides a kind of production of 4K-HDR live show and live broadcasting method,
Include the following steps:
Step S1 analyzes program scene type, and HDR and colour gamut basis match parameter are arranged based on the analysis results；
HDR parameter is arranged according to actual scene in step S2, HDR and SDR image relative contrast and tolerance is arranged；
Basic exposure point is arranged according to personage's main body illumination in step S3；
Step S4, according to the HDR and colour gamut basis match parameter, HDR parameter, HDR and SDR image relative contrast and width
ALT-CH alternate channel parameter is arranged in content, basic exposure point；
Step S5 matches corresponding color parameter setting, realizes Color control according to the scene of setting；
Step S6 is broadcast live the program to complete through the above steps using 4K HDR signal.
Further, in the step S2, the HDR parameter includes: HDR GAIN gain difference parameter and HDR BLACK
OFFSET black level difference parameter.
Further, in step s3, according to personage's main body illumination, and will further using standard white Nit number as reference, if
Set basic exposure point.
Further, in the step S4, according to the HDR and colour gamut basis match parameter, HDR parameter, HDR and SDR
Image relative contrast and tolerance, basic exposure point, it is reverse to release upper down conversion relevant parameter.
Further, in the step S1, analysis obtains scene type and includes:
(1) high contrast, high saturation color luminous environment；
(2) light contrast is compared with small, pure color light is few, the higher environment of saturation degree；
(3) outfield, illumination is preferable, affected by environment big.
Further, in the step S6,
When using IPTV platform, a 15Mbps is exported, it is preferential, relative reduction Motion Resolution rate with static clarity
Mode；
When using 4K HDR live streaming, it is inserted into the setting of HLG and .BT.2020 metadata in the encoder, it is ensured that the IP of output
Carry HDR metadata information in stream secretly；The equipment for supporting identification HDR metadata, the correct HDR of automatic trigger show standard.
4K-HDR live show production according to an embodiment of the present invention and live broadcasting method include front end production standardized stream
Journey, different size down conversion reference standard broadcast plug-flow reference standard, broadcast domain and receive domain reference standard.The present invention is based on
The underlying parameters that largely test obtains are designed by Formal description, so that 4K HDR field fabrication acquisition is as ideal straight as possible
Broadcast effect, avoid currently being easy to appear due to making standard disunity, the HDR and SDR signal of conversion is often asked simultaneously
The case where topic.And maximum adjustment space is built for later-stage secondary production and promotes producing efficiency, accelerates 4K HDR content raw
It produces efficiency and broadcasts safety.Since the manufacture craft Optimizing Flow summarized at present there is no relevant empirical parameter exists, so
Setting procedure provided by the invention and setting parameter, can be used as the technical support of 4K HDR live content production.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow chart according to the production of the 4K-HDR live show of the embodiment of the present invention and live broadcasting method；
Fig. 2 is the schematic diagram played according to the conversion of the HDR format of the embodiment of the present invention and 4K；
Fig. 3 is the schematic diagram according to the setting HDR parameter of the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
As shown in Figure 1 to Figure 3, the 4K-HDR live show production of the embodiment of the present invention and live broadcasting method, including walk as follows
It is rapid:
Step S1 analyzes program scene type, and HDR and colour gamut basis match parameter are arranged based on the analysis results.
In an embodiment of the present invention, analysis obtains scene type and includes:
(1) high contrast, high saturation color luminous environment, such as large-scale outfield concert scene；
(2) light contrast is compared with small, pure color light is few, saturation degree higher environment, such as variety activity, party etc.；
(3) outfield, illumination is preferable, affected by environment big, such as competitive sports.
HDR parameter is arranged according to actual scene in step S2, HDR and SDR image relative contrast and tolerance is arranged.
In this step, with reference to Fig. 3, HDR parameter includes: HDR GAIN gain difference parameter and HDR BLACK OFFSET
Black level difference parameter.
Basic exposure point is arranged according to personage's main body illumination in step S3.
In this step, using standard white Nit (nit) number as reference, according to personage's main body illumination, basic exposure is set
Point.
Step S4, according to HDR and colour gamut basis match parameter, HDR parameter, HDR and SDR image relative contrast and tolerance
ALT-CH alternate channel parameter is arranged in degree, basic exposure point.
Specifically, according to HDR and colour gamut basis match parameter, HDR parameter, HDR and SDR image relative contrast and tolerance
Degree, basic exposure point, it is reverse to release upper down conversion relevant parameter, to ensure consistency.
Step S5 matches corresponding color parameter setting, realizes Color control, it is ensured that especially according to the scene of setting
Variety large-scale activity evades the problem of color overflows in color gamut conversion.
Below to 4K-HDR live show of the invention by taking the most common SONY 4K onsite making system in current market as an example
Production and live broadcasting method are illustrated.
Video camera uses the road Sony HDC-4300 flagship Ji4KXun video camera, by the 4K output signal of video camera base station,
It can choose following standard (including HDR curve and color gamut space), be HLG-LIVE 2100, HLG, S-LOG3 respectively；Colour gamut is
BT.2020 (under HLG mode), S-Gamut (under S-LOG3 mode).
The use foundation of three above standard of the present invention needs to comprehensively consider live streaming and requires, records needs and post-production
The Multiple factors such as efficiency are divided into following different scenes, the most reasonable setting of selection according to our practical experience.
(1) concert of large-scale outfield is live (high contrast, high saturation color luminous environment): being selected using S-LOG3 and S-Gamut.
This is because live high saturation color light is easy to hypercolour domain, and live light is bigger, and Medium grey area is less.This setting can solve
It certainly covers high tolerance and high saturation color is color, and problem of the S-LOG3 more than noise is not easy to embody under dark scene.
(2) variety activity, party etc. (light contrast is compared with small, pure color light is few, saturation degree is higher): HLG and BT.2020 is used
Mark.Reason: by a large amount of tests, this selection noise is less than S-LOG3, is able to ascend later period efficiency.
(3) competitive sports (outfield): setting is identical as variety activity.But in detail setting, need to intensify and satisfy
With being separately provided for degree, design parameter needs to list detail parameters list, and different seat in the plane demand settings are had any different.
After initial setting, correlation HDR GAIN and HDR BLACK OFFSET parameter is set.According to as follows:
(1) large-scale outfield concert: being based on high contrast environment, and basic illumination is low, and HDR GAIN is arranged in -6dB,
BLACK OFFSET is set as 0 (since scene light is complicated, it is proposed that post-processing avoids level from losing).
(2) variety activity, party etc.: due to field illumination height, and contrast is small, needs to be arranged by HDR and intensify, by force
Change expressive force, while noticing that the exposure of face cannot be excessively high.HDR GAIN setting -9dB, HDR GAIN-10 or so (is based on scene
Different fine tunings up and down).
(3) competitive sports (outfield): field illumination is preferable, affected by environment big since seat in the plane is relatively remote.HDR GAIN is set
Set -9dB (if live electronic bill-board illumination is low, settable -12dB).BLACK OFFSET be set as -15 fall -30 between
(each seat in the plane is adjustable according to distance)
There is HD or SDR signal at scene, needs to be correspondingly arranged accordingly in HDR converter HDRC-4000 based on arrangement above
HDR GAIN and BLACK OFFSET numerical value, need to be consistent.To avoid high-definition signal down conversion below output when, with
There is inconsistent situation in the raw frames of these up conversions.According to actual test, up conversion signal source, which should ensure that, minimum reaches HD
50P 10BIT signal source output.
Facial brightness under normal illumination, under HDR HLG standard, currently used adjustment is referenced as, white based on 100%
Be stuck in the brightness value that about 203nit is shown in HLG, at this time colour of skin illumination relatively rationally (consider different colours colour of skin difference,
Use white card more unified as benchmark).Subtitle is referring also to the white output level value for blocking 203nit as standard.
When to take into account HDR production, it is completed at the same time the broadcast effect of HD SDR, HDR converter HDRC-4000 needs complete
With parameter setting identical with HDCU-4300, this also requires the parameter of HDCU-4300 that each news road is needed to be consistent.In this way
It just can guarantee that the output list of each road HD hangs recording signal, and switch eventually by the instructor in broadcasting of the HDR 4K SDR HD being converted to
Picture is just the same, the color-tunability efficiency of maximum lift rear end.
This needs to consider that the colour of skin restores, especially the color conversion of SDR up conversion HDR to Color control, transfers under HDR
SDR image out needs individually to set for occurring the high spontaneous light color (concert, comprehensive gala evening) of saturation in picture in early period
Determine indigo plant, the purple coloured silk phase saturation attributes in video camera PAINT menu MATRIX, it is appropriate according to actual color saturation degree to need
Reduce (general recommendations -10 arrives -30).
Step S6 is broadcast live the program to complete through the above steps using 4K HDR signal.
In this step, the reference standard of broadcast plug-flow of the invention is as follows:
(1) 4K HDR signal, it is proposed that plug-flow encoding device is set as 30Mbps (based on 4K 50P 10bit standard).This mark
Standard is broadcast live by long-term various code rate and is tested, balancing bandwidth requirement, the standard obtained.
(2) if IPTV platform or distribution channel CDN ability are limited, a 15Mbps (4K 25P can be exported
10bit), by static clarity in a manner of preferential, relative reduction Motion Resolution rate.
(3) it is broadcast live using 4K HDR, is proposed with the HLG HDR curve and BT.2020 colour gamut of broadcasting and TV standard at present.It is recommended that
In the encoder, insertion HLG and .BT.2020 metadata setting (choosing), it is ensured that entrainment HDR metadata letter in the IP stream of output
Breath；Terminal supports the equipment for identifying HDR metadata in this way, can the correct HDR display standard of automatic trigger.
For no condition, or it cannot be confirmed whether that terminal (receiving encoder, set-top box, user's TV) supports HDR
The operator of signal standards or user, it is proposed that it requires to receive the 4K signal for being converted to SDR standard in front end, it can not to avoid spectators
Correct viewing HDR signal effect causes to watch uncomfortable (picture contrast is low, color is unsaturated, and the colour of skin is bad etc.).
4K-HDR live show production according to an embodiment of the present invention and live broadcasting method include front end production standardized stream
Journey, different size down conversion reference standard broadcast plug-flow reference standard, broadcast domain and receive domain reference standard.The present invention is based on
The underlying parameters that largely test obtains are designed by Formal description, so that 4K HDR field fabrication acquisition is as ideal straight as possible
Broadcast effect, avoid currently being easy to appear due to making standard disunity, the HDR and SDR signal of conversion is often asked simultaneously
The case where topic.And maximum adjustment space is built for later-stage secondary production and promotes producing efficiency, accelerates 4K HDR content raw
It produces efficiency and broadcasts safety.Since the manufacture craft Optimizing Flow summarized at present there is no relevant empirical parameter exists, so
Setting procedure provided by the invention and setting parameter, can be used as the technical support of 4K HDR live content production.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.The scope of the present invention
By appended claims and its equivalent limit.
Claims (6)
1. a kind of 4K-HDR live show production and live broadcasting method, which comprises the steps of:
Step S1 analyzes program scene type, and HDR and colour gamut basis match parameter are arranged based on the analysis results；
HDR parameter is arranged according to actual scene in step S2, HDR and SDR image relative contrast and tolerance is arranged；
Basic exposure point is arranged according to personage's main body illumination in step S3；
Step S4, according to the HDR and colour gamut basis match parameter, HDR parameter, HDR and SDR image relative contrast and tolerance
ALT-CH alternate channel parameter is arranged in degree, basic exposure point；
Step S5 matches corresponding color parameter setting, realizes Color control according to the scene of setting；
Step S6 is broadcast live the program to complete through the above steps using 4K HDR signal.
2. 4K-HDR live show production as described in claim 1 and live broadcasting method, which is characterized in that in the step S2
In, the HDR parameter includes: HDR GAIN gain difference parameter and HDR BLACK OFFSET black level difference parameter.
3. 4K-HDR live show production as described in claim 1 and live broadcasting method, which is characterized in that in step s3, root
According to personage's main body illumination, and basic exposure point will be set further using standard white Nit number as reference.
4. 4K-HDR live show production as described in claim 1 and live broadcasting method, which is characterized in that in the step S4
In, according to the HDR and colour gamut basis match parameter, HDR parameter, HDR and SDR image relative contrast and tolerance, basic exposure
Luminous point, it is reverse to release upper down conversion relevant parameter.
5. 4K-HDR live show production as described in claim 1 and live broadcasting method, which is characterized in that in the step S1
In, analysis obtains scene type and includes:
(1) high contrast, high saturation color luminous environment；
(2) light contrast is compared with small, pure color light is few, the higher environment of saturation degree；
(3) outfield, illumination is preferable, affected by environment big.
6. 4K-HDR live show production as described in claim 1 and live broadcasting method, which is characterized in that in the step S6
In,
When using IPTV platform, a 15Mbps is exported, preferential, relative reduction Motion Resolution rate the side with static clarity
Formula；
When using 4K HDR live streaming, it is inserted into the setting of HLG and .BT.2020 metadata in the encoder, it is ensured that in the IP stream of output
Carry HDR metadata information secretly；The equipment for supporting identification HDR metadata, the correct HDR of automatic trigger show standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794719.XA CN110460870A (en) | 2019-08-27 | 2019-08-27 | The production of 4K-HDR live show and live broadcasting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794719.XA CN110460870A (en) | 2019-08-27 | 2019-08-27 | The production of 4K-HDR live show and live broadcasting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110460870A true CN110460870A (en) | 2019-11-15 |
Family
ID=68489327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910794719.XA Pending CN110460870A (en) | 2019-08-27 | 2019-08-27 | The production of 4K-HDR live show and live broadcasting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110460870A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111885393A (en) * | 2020-07-31 | 2020-11-03 | 广州华多网络科技有限公司 | Live broadcast method, system, storage medium and equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108432236A (en) * | 2016-01-05 | 2018-08-21 | 索尼公司 | Image capturing apparatus, image capturing method and program |
| CN109417588A (en) * | 2016-06-27 | 2019-03-01 | 索尼公司 | Signal handling equipment, signal processing method, camera system, video system and server |
| CN109600605A (en) * | 2019-01-18 | 2019-04-09 | 中央电视台 | Detection method, electronic equipment and the computer program product of 4K ultra high-definition video |
| US20190132546A1 (en) * | 2017-10-27 | 2019-05-02 | Avago Technologies International Sales Pte. Limited | System and Method of Luminance Processing in High Dynamic Range and Standard Dynamic Range Conversion |
| WO2019158730A1 (en) * | 2018-02-15 | 2019-08-22 | Gvbb Holdings, S.A.R.L. | System and method for controlling luminance during video production and broadcast |
-
2019
- 2019-08-27 CN CN201910794719.XA patent/CN110460870A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108432236A (en) * | 2016-01-05 | 2018-08-21 | 索尼公司 | Image capturing apparatus, image capturing method and program |
| CN109417588A (en) * | 2016-06-27 | 2019-03-01 | 索尼公司 | Signal handling equipment, signal processing method, camera system, video system and server |
| US20190132546A1 (en) * | 2017-10-27 | 2019-05-02 | Avago Technologies International Sales Pte. Limited | System and Method of Luminance Processing in High Dynamic Range and Standard Dynamic Range Conversion |
| WO2019158730A1 (en) * | 2018-02-15 | 2019-08-22 | Gvbb Holdings, S.A.R.L. | System and method for controlling luminance during video production and broadcast |
| CN109600605A (en) * | 2019-01-18 | 2019-04-09 | 中央电视台 | Detection method, electronic equipment and the computer program product of 4K ultra high-definition video |
Non-Patent Citations (4)
| Title |
|---|
| 洪宇等: "山东卫视2019春晚4K录制技术解析", 《广播电视信息》 * |
| 阚玄等: "江苏卫视2019澳门跨年演唱会的制作-4K制播", 《现代电视技术》 * |
| 韦姿: "HDR与SDR现场协同制作技术探讨", 《现代电视技术》 * |
| 马正先: "HDR技术及其在4K超高清电视上的应用", 《电视技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111885393A (en) * | 2020-07-31 | 2020-11-03 | 广州华多网络科技有限公司 | Live broadcast method, system, storage medium and equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102511572B1 (en) | Video signal processing method and apparatus | |
| US11812191B2 (en) | Display system, display method, and display apparatus | |
| Sugawara et al. | Ultra-high-definition television (Rec. ITU-R BT. 2020): A generational leap in the evolution of television [standards in a nutshell] | |
| CN105409225B (en) | The transmission of HDR metadata | |
| US9992445B1 (en) | Systems and methods for identifying a video aspect-ratio frame attribute | |
| CN108810649A (en) | Picture quality regulation method, intelligent TV set and storage medium | |
| CN105592322B (en) | A kind of optimization method and device of media data | |
| JP7397798B2 (en) | System that handles multiple HDR video formats | |
| CN105407381B (en) | A kind of video program play method and device | |
| US20180241925A1 (en) | Reception device, reception method, and program | |
| US20110311207A1 (en) | Playback apparatus, method for controlling the same, and storage medium | |
| CN102282849A (en) | Data transmission device, data transmission mthod, audio-visual environment control devcice, audio-visual environment control method, and audio-visual environment control system | |
| CN105979370B (en) | A kind of method and device configuring image model | |
| CN110460870A (en) | The production of 4K-HDR live show and live broadcasting method | |
| CN106686405B (en) | Video rebroadcasting method and system | |
| US20030090479A1 (en) | Display device and method of changing the display settings thereof | |
| CN204168404U (en) | A kind of processing unit of ultra high-definition signal and full HD TV | |
| Noland et al. | A brightness measure for high dynamic range television | |
| EP3439312A1 (en) | Content processing device, television reception device, method of processing information in content processing device, and program | |
| CN107197235A (en) | A kind of HDR video pre-filterings method | |
| CN108476345A (en) | The method and system that flow rate in content-control stream media network is adjusted | |
| Series | The present state of ultra-high definition television | |
| CN108449622B (en) | Mixed data source smart television playing and interaction system | |
| CN204168398U (en) | A kind of processing unit of ultra high-definition signal and full HD TV | |
| JP3784238B2 (en) | Color bar signal generator for multiple television signal formats |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191115 |