CN106375830A - Method for superposing view angle following text and video contents on virtual reality video - Google Patents
Method for superposing view angle following text and video contents on virtual reality video Download PDFInfo
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- CN106375830A CN106375830A CN201610835355.1A CN201610835355A CN106375830A CN 106375830 A CN106375830 A CN 106375830A CN 201610835355 A CN201610835355 A CN 201610835355A CN 106375830 A CN106375830 A CN 106375830A
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 230000003068 static effect Effects 0.000 claims abstract description 49
- 230000000007 visual effect Effects 0.000 claims abstract description 26
- 238000009877 rendering Methods 0.000 claims abstract description 5
- 239000011159 matrix material Substances 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 238000013507 mapping Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000005457 optimization Methods 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
- H04N21/44—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
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Or Creating Images (AREA)
Abstract
The invention relates to a method for superposing view angle following text and video contents on a virtual reality video. The method comprises the steps of performing 3D modeling by a video playback module and putting read video data to a 3D model frame by frame; calculating picture information according to a view angle parameter given by a user and reserving an area of a specific size at a particular place of the picture for static display; respectively performing different technical processing according to the types of contents to be displayed and forming pictures to be displayed; and performing video display according to calculated data information and displaying specific contents at a static display area. According to the method for superposing the view angle following text and video contents on the virtual reality video provided by the invention, by reserving one static display area at a display area of the virtual reality video, and rendering text or picture information to be displayed to the area for display through specific processing, users can obtain additional information from a video static play area in the case of switching view angles in an unaffected way, thereby greatly increasing the flexibility of user viewing, and improving the visual experience.
Description
Technical field
The present invention relates to the picture and text at visual angle and the method for video content are followed in superposition on a kind of virtual reality video, especially relate to
And the picture and text at visual angle and the side of video content are followed in superposition on the virtual reality video in virtual reality and video display arts field
Method.
Background technology
Virtual reality is as a kind of Visual Experience Mode strongly bringing sense into modern audio-visual developing rapidly of technology
Gradually pursued by people.For providing the video information at 360 degrees omnidirection visual angle to user, user passes through specific hardware to its feature
Equipment and virtual reality video player carry out interaction, and real-time input viewing angle control information is thus realize freely changing of visual angle.
Although this watching mode gives user with the autonomous space selecting, but also comes with some shortcomings.Because video data is
Dynamic Announce, that is, not as conventional video by all information, such as captions, video specification etc. side information follows video
Suppress together and then by video player, full detail is rendered and play back, so result in user same in viewing video
Shi Wufa synchronously sees the content outside these additional informations or current video, causes necessarily to affect to the viewing of user,
Consumer's Experience has much room for improvement.
Content of the invention
For not enough present in virtual reality technology, on virtual reality video of the present invention superposition follow visual angle picture and text and
The method of video content, proposes one kind by opening up one piece of static play area in video-see region, and according to be shown interior
The type held carries out different technical finesses and forms picture to be shown, then by opengl by this picture be rendered into one piece new
On texture, finally this texture is rendered into the static play area opening up out in above-mentioned video playback area to realize following dynamically
The method that video playback shows the effect of video attachments content, by passing through technical finesse Overlapping display dynamic by content to be displayed
The mode of the specific position of state video display area, user can either be had during viewing and enough freely plays space
Easily Video Add-On information can be obtained as traditional viewing again, and when video does not have additional information, for showing
Show that the video area of additional information shows to reach bigger realistic space effect for normal video by being recovered, significantly
Improve user's viewing experience.
The technical solution adopted for the present invention to solve the technical problems comprises the following steps:
3d modeling mapping video data step, playing module carries out 3d modeling according to setup parameter, and reads video counts frame by frame
According to being mapped on 3d model.
Calculate picture step, the view parameter according to user input calculates picture to be shown from 3d data for projection matrix
Information simultaneously calculates static state display area information.
Preferably, this step includes calculating video image information and static state display regional space information.
Preferably, calculated according to the viewing angle control information of user input the size of video area needing to play, visual angle,
The information such as the depth of field；The information such as static state display regional location and size is calculated according to setup parameter.
Render static state display region step, particular procedure is carried out according to specific requirement to information to be displayed and result rendered
To region to be shown.
Preferably, described step includes: needs for information to be displayed to be converted into a pure picture according to static state display and incites somebody to action
This picture is rendered into static state display region.
Preferably, described information to be displayed includes three kinds of situations: pure pictorial information, plain textual information and word and picture
Mixed information.
Preferably, for described pure pictorial information, need not any change.
Preferably, for described plain textual information, the first property calculation area size according to Word message, then using figure
Described Word message is converted into pictorial information by the method for piece context.
Preferably, for the mixed information of described word and picture, first typesetting is carried out to word and pictorial information, then
Viewing area size is calculated according to word and picture attribute, and then draws word and picture, finally utilize the side of picture context
This drafting information is converted into picture by method.
Preferably, the described static state display region that is rendered into refers to extract data content and then the wash with watercolours of picture using opengl
Contaminate to one piece of new data texture, finally this data texture is rendered into described static state display region.
Preferably, if no static data needs to show, destroy the described static state display area calculating and creating in picture step
Domain resource, the video information in order to this region normally shows.
Play video step, video pictures and static state display region content are shown according to result of calculation.
Preferably, video playback module requires again to render 3d model according to the control parameter receiving and static state display
Data matrix.
Preferably, will check the need for terminating video playback after each frame video playback finishes, and need to continue
Read next frame video information in the case of broadcasting and repeat playing process, stop when needing to terminate video playback parsing and destroying
Specify.
Using technique scheme, the invention has the advantages that
The present invention relates to superposition follows the picture and text at visual angle and the method for video content, by video-see on virtual reality video
One piece of static play area is opened up in region, and carries out different technical finesses according to the type of content to be displayed and form figure to be shown
Piece, then by opengl, this picture is rendered on one piece of new texture, finally this texture is rendered into above-mentioned video playback
The static play area that region opens up out is to realize following the effect that dynamic video plays display video attachments content.By inciting somebody to action
Content to be displayed through technical finesse be added to dynamic video viewing area specific position mode, allow user in the mistake of viewing
Energy easily obtains Video Add-On information as traditional viewing again can either enough spaces that freely plays in journey, and works as and regard
When there is not additional information in frequency, the video area for display additional information will be recovered and show for normal video
To reach bigger realistic space effect, substantially increase user's viewing experience.
Brief description
Fig. 1 is picture and text and the video content that on the virtual reality video of better embodiment of the present invention, visual angle is followed in superposition
The step schematic diagram of method.
Fig. 2 is picture and text and the video content that on the virtual reality video of better embodiment of the present invention, visual angle is followed in superposition
The detail flowchart of method.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Whole description is it is clear that described embodiment is only one embodiment of the present of invention, rather than whole embodiments.Based on this
Embodiment in invention, other realities that one of ordinary skill in the art is obtained on the premise of not making creative work
Apply example, broadly fall into the scope of protection of the invention.
The embodiment of the invention discloses the picture and text at visual angle and the method for video content are followed in superposition on virtual reality video, ginseng
As shown in Figure 1, the method includes:
Step s1: video playback module carry out 3d modeling and frame by frame reading video data render to this 3d model；
Step s2: the view parameter being given according to user calculates image information the specific local reserved particular size in picture
Static state display is made in region；
Step s3: the type according to content to be displayed carries out different technical finesses and forms picture to be shown；
Step s4: video is carried out according to the data message calculating and shows and in static state display region display certain content.
In the embodiment of the present invention, by opening up one piece of static play area in video-see region, and according to be shown interior
The type held carries out different technical finesses and forms picture to be shown, then by opengl by this picture be rendered into one piece new
On texture, finally this texture is rendered into the static play area opening up out in above-mentioned video playback area to realize following dynamically
Video playback shows the effect of video attachments content.
It can be seen that, by by content to be displayed by technical finesse be added to dynamic video viewing area specific position side
Formula, allow user can either have during viewing enough freely play space and can think that traditional viewing equally easily obtains again regard
Frequency additional information, and when video does not have additional information, the video area for display additional information will be recovered
To show to reach bigger realistic space effect for normal video, substantially increase user's viewing experience.
The embodiment of the invention discloses the picture and text at visual angle and the method for video content are followed in superposition on virtual reality video, ginseng
See Fig. 2, relatively go up an embodiment, the present embodiment has made further instruction and optimization to technical scheme.Specifically, the present embodiment
The method being superimposed the picture and text and video content following visual angle on middle virtual reality video comprises the steps of.
S1:3d modeling mapping video data:
Preferably, playing module carries out 3d modeling according to setup parameter, and described parameter is included for determining distant relationships and the depth of field
And instruct 2d pinup picture and 3d to model the 3d model spherical radius rendering, for determining the direction vector of video camera direction and being used for
Determine the vector upwards of direction of advance；
Preferably, after 3d modeling completes, video playback module will reading video data being mapped on this 3d model frame by frame.
S2: picture calculates:
Preferably, this step includes: the viewing angle control parameter according to user input calculates video image information to be shown；Regarding
The static state display region as Video Add-On presentation of information for the region of one piece of particular size, this area are opened up in the specific region of frequency display
Domain will be followed view angle switch and be covered display.
S3: render static state display region:
Preferably, step s31 is first carried out judge whether to need to carry out static state display, if desired then execution step s33, otherwise holds
Row step s32；
Preferably, step s32 is destroyed static state display region and is referred to remove the static state display region money opening up out in step s2
Source, and discharge this viewing area and show for normal video, then execution step s4；
Preferably, step s32 is used for judging whether content to be displayed is pure pictorial information, if then picture is not done with any place
Reason, otherwise, for plain textual information execution step s34, s35 process, the mixed information for word and picture executes step
Rapid s36, s37, s38, s39 process, and execution step s310 after case above is disposed；
Preferably, step s310 refers to using opengl, the pictorial information handled well be rendered on one piece of new texture, then
Execution step s311 is done and is rendered further；
Preferably, Rong in the texture rendering is being rendered into the static storage region opening up out in step s2 by step s311
On, then execution step s4 shows to video content.
Preferably, in step s4, first execution step s41 is projected according to view parameter and static state display information reconstruction 3d
Matrix, if not having static state display information, static state display region is rendered into the video information in this region again；
Preferably, after execution of step s41, playing module can execution step s42 complete to include possibility to this frame video data information
The static state display data message existing plays out；
Preferably, all execution step s43 can judge whether video playback terminates after every frame data finish, if then executing
Step s44 stops Digital video resolution and simultaneously destroys related resource, and otherwise execution step s1 reads on next frame video data repeats
Stating process step instructs video playback to terminate.
In sum, by execution step s1 carry out 3d data modeling and frame by frame reading video data be mapped to this model
On, then execution step s2 obtain the viewing angle control information parameter of user input and thus calculate video counts to be played it is believed that
Breath, simultaneously the ad-hoc location in video playback area open up one piece of static state display region for showing the letter outside current video
Breath, judges whether information content to be shown by step s31, if not existing, execution step s32 destroys step
The static state display region resource opening up out in s2, otherwise, is execution step during full Word message for information to be displayed
S34 is according to the property calculation display space size of word, and then execution step s35 will change word using the method for picture context
Information is converted into pictorial information；When content to be displayed is for the mixed information of word and picture, execution step s36 is to figure
After piece and Word message carry out typesetting, execution step s37 calculates display space size according to the particular community of word and picture,
And then execution step s38 draws to these words and pictorial information, for drawing result execution step s39 producing by institute
State result and become pure picture using the method migration of picture context, the result execution step obtaining is processed for above-mentioned various situations
Pure picture is rendered on one piece of texture newly opened up by s310 using opengl, then to this texture execution step s311 by its wash with watercolours
Contaminate the static state display region opening up out in step s2, finally step s32, s311 result execution step s41 is weighed
Newly render 3d model data matrix, and by step s42, above-mentioned rendering result is played back, finish rear execution step
S43 judges whether video playback terminates, if then execution step s44 stopping video parsing and destroys corresponding resource, otherwise holds
Row step s1 reads next frame video data and repeats above-mentioned processing procedure and terminate until video playback.By by content to be displayed
By technical finesse be added to dynamic video viewing area specific position by way of, allow the user can either during viewing
Have enough freely play space again can as traditional viewing light acquisition Video Add-On information, and when video do not exist attached
Plus when information, for display additional information video area will be recovered show for normal video bigger to reach
Realistic space effect, substantially increase user's viewing experience.
The foregoing is only illustrative, rather than be restricted.Those skilled in the art can carry out various changing to invention
Move with modification without departing from the spirit and scope of the present invention.So, if these modifications of the present invention and modification belong to the present invention
Within the scope of claim and its equivalent technologies, then the present invention is also intended to including these changes and modification.
Claims (10)
1. on virtual reality video, superposition follows the picture and text at visual angle and the method for video content it is characterised in that the method comprises
Following steps:
3d modeling mapping video data step, playing module carries out 3d modeling according to setup parameter, and reads video counts frame by frame
According to being mapped on 3d model；
Calculate picture step, the view parameter according to user input calculates image information to be shown from 3d data for projection matrix
And calculate static state display area information；
Render static state display region step, particular procedure be rendered into result is carried out according to specific requirement to information to be displayed and treats
Viewing area；
Play video step, video pictures and static state display region content are shown according to result of calculation.
2. on virtual reality video as claimed in claim 1, the picture and text at visual angle and the method for video content are followed in superposition, and it is special
Levy and be, described calculating picture step includes calculating video image information and static state display regional space information.
3. on virtual reality video as claimed in claim 2, the picture and text at visual angle and the method for video content are followed in superposition, and it is special
Levy and be, calculate the letters such as the size of video area needing to play, visual angle, the depth of field according to the viewing angle control information of user input
Breath；The information such as static state display regional location and size is calculated according to setup parameter.
4. it is superimposed, on a kind of virtual reality video, the method following visual angle picture and text and video content as claimed in claim 1, its
It is characterised by, the described step rendering static state display region includes: need to be converted into information to be displayed according to static state display
One pure picture and this picture is rendered into static state display region.
5. on a kind of virtual reality video, superposition is followed visual angle picture and text and is regarded as claimed in claim 4
The method of frequency content is it is characterised in that described information to be displayed includes three kinds of situations: pure pictorial information, plain textual information
And the mixed information of word and picture.
6. on a kind of virtual reality video, superposition is followed visual angle picture and text and is regarded as claimed in claim 4
The method of frequency content is it is characterised in that for described pure pictorial information, need not any change.
7. on a kind of virtual reality video, superposition is followed visual angle picture and text and is regarded as claimed in claim 4
The method of frequency content is it is characterised in that for described plain textual information, now big according to the property calculation region of Word message
Little, then using the method for picture context, described Word message is converted into pictorial information.
8. on a kind of virtual reality video, superposition is followed visual angle picture and text and is regarded as claimed in claim 4
The method of frequency content it is characterised in that mixed information for described word and picture, first to word and pictorial information
Carry out typesetting, then viewing area size is calculated according to word and picture attribute, and then draw word and picture, finally using figure
This drafting information is converted into picture by the method for piece context.
9. on a kind of virtual reality video, superposition is followed visual angle picture and text and is regarded as claimed in claim 4
The method of frequency content is it is characterised in that the described static state display region that is rendered into refers to extract picture using opengl
Then data content is rendered into one piece of new data texture, finally this data texture is rendered into described static state display region.
10. on a kind of virtual reality video, superposition is followed visual angle picture and text and is regarded as claimed in claim 4
If the method for frequency content, it is characterised in that no static data needs to show, is destroyed in described calculating picture step and is created
Static state display region resource, normally show for video information.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610835355.1A CN106375830A (en) | 2016-09-21 | 2016-09-21 | Method for superposing view angle following text and video contents on virtual reality video |
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| CN107222794A (en) * | 2017-06-27 | 2017-09-29 | 苏州蜗牛数字科技股份有限公司 | A kind of method that watermark and background are added in panoramic video player |
| CN107347149A (en) * | 2017-06-14 | 2017-11-14 | 深圳市酷开网络科技有限公司 | A kind of suspension display method, virtual reality device and storage medium |
| CN107493503A (en) * | 2017-08-24 | 2017-12-19 | 深圳Tcl新技术有限公司 | Virtual reality video rendering methods, system and the storage medium of playback terminal |
| CN107613405A (en) * | 2017-09-30 | 2018-01-19 | 福州瑞芯微电子股份有限公司 | A kind of VR video captions display methods and device |
| CN108600858A (en) * | 2018-05-18 | 2018-09-28 | 高新兴科技集团股份有限公司 | A kind of video broadcasting method of simultaneous display AR information |
| CN109743892A (en) * | 2017-07-04 | 2019-05-10 | 腾讯科技（深圳）有限公司 | The display methods and device of virtual reality content |
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| CN107613405A (en) * | 2017-09-30 | 2018-01-19 | 福州瑞芯微电子股份有限公司 | A kind of VR video captions display methods and device |
| CN107613405B (en) * | 2017-09-30 | 2019-12-27 | 福州瑞芯微电子股份有限公司 | VR video subtitle display method and device |
| CN108600858A (en) * | 2018-05-18 | 2018-09-28 | 高新兴科技集团股份有限公司 | A kind of video broadcasting method of simultaneous display AR information |
| WO2019218770A1 (en) * | 2018-05-18 | 2019-11-21 | 高新兴科技集团股份有限公司 | Video playing method for synchronously displaying ar information |
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