CN105872698A - Playing method, playing system and virtual reality terminal - Google Patents
Playing method, playing system and virtual reality terminal Download PDFInfo
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- CN105872698A CN105872698A CN201610200117.3A CN201610200117A CN105872698A CN 105872698 A CN105872698 A CN 105872698A CN 201610200117 A CN201610200117 A CN 201610200117A CN 105872698 A CN105872698 A CN 105872698A
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- virtual reality
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- reality terminal
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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
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0346—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/167—Synchronising or controlling image signals
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- User Interface Of Digital Computer (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention provides a playing method, a playing system and a virtual reality terminal. The playing method comprises the following steps: when a user wears the virtual reality terminal, detecting whether the virtual reality terminal is in a motion state; when detecting the virtual reality terminal is in the motion state, collecting acceleration information of the virtual reality terminal according to a preset collection frequency; adjusting a frame frequency of to-be-played video information according to the acceleration information so as to provide synchronous video information for the user; and displaying the synchronous video information in a visual area of the virtual reality terminal. Through the technical scheme provided by the invention, the consistency of a video playing rhythm with a user action rhythm is realized, the user can simulate actions in a video conveniently, the learning efficiency of the user is improved, and the use experience of the user is improved.
Description
Technical field
The present invention relates to field of terminal technology, in particular to a kind of player method, a kind of broadcasting
System and a kind of virtual reality terminal.
Background technology
Along with the development of virtual reality technology, virtual reality terminal is also accepted by increasing user,
Owing to, after wearing virtual reality terminal, user can be immersed in a virtual synthetic environment, exempts from
In being bothered by the external world, therefore virtual reality terminal has the most gradually been applied in video teaching, especially
Action class is imparted knowledge to students, in such as Dancing Teaching.
In the related, usual instructional video, after recording completes, plays what frame frequency determined that, though
So user can improve focus by virtual reality terminal viewing instructional video, but due to user's
Level of learning is different, and some user cannot catch up with teaching process, also because the action in video is too fast
Because the action in video is relatively slow, some user then feels that instructional video utilization rate is the highest, so that impact
The utilization rate of instructional video, it addition, the teaching visual angle in instructional video is typically constant, user is only
Instructional video can be watched from single angle, also be unfavorable for user's study for standard operation.
Therefore, a kind of new virtual reality terminal and corresponding broadcasting scheme how are designed to be supplied to use
Family synchronization video information becomes technical problem urgently to be resolved hurrily.
Summary of the invention
The present invention is based at least one above-mentioned technical problem, it is proposed that a kind of player method, one
Play System and a kind of virtual reality terminal, be arranged at the accelerometer of virtual reality terminal by use
Collection acceleration information, and adjust the frame frequency of video information to be played according to acceleration information, to carry
Supply user's synchronization video information, it is achieved that the rhythm playing video is consistent with user action rhythm
Property, facilitates user to the imitation of action in video, improves the learning efficiency of user, improve use
The experience at family.
In view of this, first aspect of the present invention it is proposed a kind of player method, including: user
When wearing virtual reality terminal, whether detection virtual reality terminal is kept in motion；Void detected
When plan non-real end is kept in motion, gather the acceleration of virtual reality terminal according to default frequency acquisition
Degree information；The frame frequency of video information to be played is adjusted according to acceleration information, same to be supplied to user
Step video information；Synchronization video information is shown in the vision coverage area of virtual reality terminal.
In this technical scheme, gather acceleration letter by being arranged at the accelerometer of virtual reality terminal
Breath, and adjust the frame frequency of video information to be played according to acceleration information, to be supplied to user's synchronization
Video information, it is achieved that play the rhythm of video and the concordance of user action rhythm, facilitate user
To the imitation of action in video, improve the learning efficiency of user, improve the experience of user.
Virtual reality terminal plays video information based on virtual reality technology, and virtual reality technology utilizes meter
A Virtual Space created by calculation machine, utilizes virtual reality terminal that user can be made to be immersed in a void completely
In the synthetic environment intended, utilize Binocular Vision Principle simultaneously, make user it can be seen that 3 D video is believed
Breath.
Specifically, accelerometer is used for gathering the acceleration information of virtual reality terminal, produces including motion
The acceleration information that raw acceleration information and rotary motion produce, leads to the acceleration information collected
Cross the frame frequency generated after processor processes for playing video information to be played, by be played
After video information is decoded, this frame frequency is used to play out, it is possible to make the video figure that user sees
As keeping consistent with the action of user self, facilitate user to the imitation of action in video, improve
The quality of instruction of video teaching and teaching efficiency.
It addition, frame frequency refers to projection each second or the frame of display or amount of images, for display,
Frame frequency is the highest, and video information is play the most smooth, but for virtual reality terminal, owing to processing
Device and the impact of display, the problem that there is also retardation rate at present, so-called retardation rate refers to that virtual reality is eventually
End and the matching degree of user's head movement, postpone including in inter-frame delay and frame, inter-frame delay finger
Process between each frame and display time in the picture that portion rotates through, inter-frame delay not can exceed that
20 milliseconds, otherwise have smear sense clearly, and when postponing to refer to user's head rotation in frame,
Constituting pixel meeting rebound initial point when each frame end of image frame, now, user's persistence of vision is existing
As the image of previous frame and this frame can be retained, produce motion blur phenomenon, in order to reduce retardation rate, a side
Picture refreshing rate can be improved in face, arranges picture refreshing rate more than 50FPS (Frame Per
Second, transmission frame number per second), when picture switches more continuously, user's visual system can continue
Reception information, if refresh rate is sufficiently high, user can thoroughly can not be identified real and virtual, the opposing party
Face can reduce sunset glow (Persistence), but reduce sunset glow and relate to the material of display screen, such as
LCD screen, because using backlight principle, produces image by additional light source projection, when relating to response
Between, so low sunset glow cannot be accomplished, and Organic Light Emitting Diode (ORGANIC LIGHT
EMITTING DIODE) display screen belongs to active illuminating display screen, and each pixel is luminous, saves
Corresponding steps, it is possible to achieve low sunset glow, i.e. uses OLED display screen to replace LCDs
(LCD, LIQUID CRYSTAL DISPLAY), it is also possible to reduce retardation rate.
In technique scheme, it is preferable that adjust video information to be played according to acceleration information
Frame frequency, to be supplied to user's synchronization video information, specifically include following steps: according to default frame
Frequently the corresponding relation with acceleration information determines the frame frequency of synchronization video information.
In this technical scheme, need the corresponding relation presetting frame frequency with acceleration information, when to be played
Video information play rhythm need with virtual reality terminal motion rhythm holding consistent time, pass through
This corresponding relation determines the frame frequency of synchronization video information, to be supplied to user's synchronization video information, prevents
Owing to video information is play too fast or crosses and affects the learning efficiency and the learning effect of user slowly.
Specifically, predetermined acceleration is 0.1m/s2Time corresponding frame frequency be 80FPS, when virtual reality eventually
The acceleration information that end collects is less than 0.1m/s2Time, frame frequency can be reduced, such as collect adds
Velocity information is 0.08m/s2Time, frame frequency is adjusted to 64FPS, and works as what virtual reality terminal collected
Acceleration information is more than 0.1m/s2Time, then can improve frame frequency, the acceleration information such as collected
For 0.15m/s2Time, frame frequency is adjusted to 120FPS, thus ensure that video information is play and virtual reality
The synchronization of terminal motion.
In any of the above-described technical scheme, it is preferable that also include: gather the sky of virtual reality terminal
Between position change information；The broadcasting adjusting video information to be played according to spatial position change information regards
Angle.
In this technical scheme, gather virtual reality eventually by being arranged at the gyroscope of virtual reality terminal
The change in location information of end, and determine that the broadcasting of video information to be played regards according to change in location information
Angle, it is achieved that user can carry out the observation of multi-angle to video information, makes video information to be played
Play visual angle can with the anglec of rotation of virtual reality terminal keep consistent, improve the use of user
Experience.
Specifically, gyroscope can gather the angular velocity information moved along an axle or several axle, according to
The angular velocity information collected judges the kinestate of virtual reality terminal, so that it is determined that virtual reality is eventually
The change in location information of end, generates broadcasting visual angle corresponding to this change in location information by processor and adjusts
Information, so that the visual angle of playing of video information to be played becomes along with the rotation of virtual reality terminal
Change, such that it is able to realize user the action in video is carried out 360 ° of observations.
In any of the above-described technical scheme, it is preferable that preset frequency acquisition more than or equal to 20 millis
Second.
In this technical scheme, in order to ensure display quality, general requirement is opened from collection acceleration information
Begin to determine that frame frequency is less than 20 milliseconds to processor according to acceleration information, in order to make synchronization video believe
Breath can be normally displayed in the vision coverage area of virtual reality terminal, needs to be preset as being more than by frequency acquisition
Or the value equal to 20 milliseconds.
According to the second aspect of the invention, it is also proposed that a kind of Play System, including: detector unit,
For when user wears virtual reality terminal, whether detection virtual reality terminal is kept in motion；
Collecting unit, for when detecting that virtual reality terminal is kept in motion, gathers frequency according to default
Rate gathers the acceleration information of virtual reality terminal；First adjustment unit, for according to acceleration information
Adjust the frame frequency of video information to be played, to be supplied to user's synchronization video information；Display unit,
For synchronization video information being shown in the vision coverage area of virtual reality terminal.
In this technical scheme, the accelerometer collection being arranged at virtual reality terminal by use is accelerated
Degree information, and adjust the frame frequency of video information to be played according to acceleration information, to be supplied to user
Synchronization video information, it is achieved that play the rhythm of video and the concordance of user action rhythm, facilitate
User, to the imitation of action in video, improves the learning efficiency of user, improves the use body of user
Test.
Virtual reality terminal plays video information based on virtual reality technology, and virtual reality technology utilizes meter
A Virtual Space created by calculation machine, utilizes virtual reality terminal that user can be made to be immersed in a void completely
In the synthetic environment intended, utilize Binocular Vision Principle simultaneously, make user it can be seen that 3 D video is believed
Breath.
Specifically, accelerometer gathers the acceleration information of virtual reality terminal, produces including motion
The acceleration information that acceleration information and rotary motion produce, by the acceleration information collected by locating
Reason device generates the frame frequency for playing video information to be played, by video to be played after processing
After information is decoded, use this frame frequency to play out, it is possible to make video image that user sees with
The action of user self keeps consistent, facilitates user to the imitation of action in video, improves video
The quality of instruction of teaching and teaching efficiency.
It addition, frame frequency refers to projection each second or the frame of display or amount of images, for display,
Frame frequency is the highest, and video information is play the most smooth, but for virtual reality terminal, owing to processing
Device and the impact of display, the problem that there is also retardation rate at present, so-called retardation rate refers to that virtual reality is eventually
End and the matching degree of user's head movement, postpone including in inter-frame delay and frame, inter-frame delay finger
Process between each frame and display time in the picture that portion rotates through, inter-frame delay not can exceed that
20 milliseconds, otherwise have smear sense clearly, and when postponing to refer to user's head rotation in frame,
Constituting pixel meeting rebound initial point when each frame end of image frame, now, user's persistence of vision is existing
As the image of previous frame and this frame can be retained, produce motion blur phenomenon, in order to reduce retardation rate, a side
Picture refreshing rate can be improved in face, arranges picture refreshing rate more than 50FPS (Frame Per
Second, transmission frame number per second), when picture switches more continuously, user's visual system can continue
Reception information, if refresh rate is sufficiently high, user can thoroughly can not be identified real and virtual, the opposing party
Face can reduce sunset glow (Persistence), but reduce sunset glow and relate to the material of display screen, such as
LCD screen, because using backlight principle, produces image by additional light source projection, when relating to response
Between, so low sunset glow cannot be accomplished, and Organic Light Emitting Diode (ORGANIC LIGHT
EMITTING DIODE) display screen belongs to active illuminating display screen, and each pixel is luminous, saves
Corresponding steps, it is possible to achieve low sunset glow, i.e. uses OLED display screen to replace LCDs
(LCD, LIQUID CRYSTAL DISPLAY), it is also possible to reduce retardation rate.
In technique scheme, it is preferable that the first adjustment unit also comprises determining that unit, is used for
Corresponding relation according to default frame frequency Yu acceleration information determines the frame frequency of synchronization video information.
In this technical scheme, need the corresponding relation presetting frame frequency with acceleration information, when to be played
The rhythm play of video information when needing rhythm holding that virtual reality terminal move consistent, by this
Corresponding relation determines the frame frequency of synchronization video information, to be supplied to user's synchronization video information, it is therefore prevented that
Owing to video information is play too fast or crosses the slow learning efficiency and the learning effect affecting user.
Specifically, predetermined acceleration is 0.1m/s2Time corresponding frame frequency be 80FPS, when virtual reality eventually
The acceleration information that end collects is less than 0.1m/s2Time, frame frequency can be reduced, such as collect adds
Velocity information is 0.08m/s2Time, frame frequency is adjusted to 64FPS, and works as what virtual reality terminal collected
Acceleration information is more than 0.1m/s2Time, then can improve frame frequency, the acceleration information such as collected
For 0.15m/s2Time, frame frequency is adjusted to 120FPS, thus ensure that video information is play and virtual reality
The synchronization of terminal motion.
In any of the above-described technical scheme, it is preferable that collecting unit is additionally operable to: gather virtual reality
The spatial position change information of terminal；Play System also includes: the second adjustment unit, for according to sky
Between position change information adjust the broadcasting visual angle of video information to be played.
In this technical scheme, gather virtual reality eventually by being arranged at the gyroscope of virtual reality terminal
The change in location information of end, and determine that the broadcasting of video information to be played regards according to change in location information
Angle, it is achieved that user can carry out the observation of multi-angle to video information, makes video information to be played
Play visual angle can with the anglec of rotation of virtual reality terminal keep consistent, improve the use of user
Experience.
Specifically, gyroscope can gather the angular velocity information moved along an axle or several axle, according to
The angular velocity information collected judges the kinestate of virtual reality terminal, so that it is determined that virtual reality is eventually
The change in location information of end, generates broadcasting visual angle corresponding to this change in location information by processor and adjusts
Information, so that the visual angle of playing of video information to be played becomes along with the rotation of virtual reality terminal
Change, such that it is able to realize user the action in video is carried out 360 ° of observations.
In any of the above-described technical scheme, it is preferable that preset frequency acquisition more than or equal to 20 millis
Second.
In this technical scheme, in order to ensure display quality, general requirement is opened from collection acceleration information
Begin to determine that frame frequency is less than 20 milliseconds to processor according to acceleration information, in order to make synchronization video believe
Breath can be normally displayed in the vision coverage area of virtual reality terminal, needs to be preset as being more than by frequency acquisition
Or the value equal to 20 milliseconds.
The invention allows for a kind of virtual reality terminal, including:
Accelerometer, for gathering the acceleration information of virtual reality terminal；
Processor, is connected with accelerometer, for adjusting video letter to be played according to acceleration information
The frame frequency of breath, to be supplied to user's synchronization video information；
Display, is connected with processor, for synchronization video information is shown in virtual reality terminal
Vision coverage area.
In this technical scheme, the accelerometer collection being arranged at virtual reality terminal by use is accelerated
Degree information, and adjust the frame frequency of video information to be played according to acceleration information, to be supplied to user
Synchronization video information, it is achieved that play the rhythm of video and the concordance of user action rhythm, facilitate
User, to the imitation of action in video, improves the learning efficiency of user, improves the use body of user
Test.
Virtual reality terminal plays video information based on virtual reality technology, and virtual reality technology utilizes meter
A Virtual Space created by calculation machine, utilizes virtual reality terminal that user can be made to be immersed in a void completely
In the synthetic environment intended, utilize Binocular Vision Principle simultaneously, make user it can be seen that 3 D video is believed
Breath.Wherein, accelerometer also includes acceleration transducer, such as piezoelectric acceleration transducer and/or
Piezoresistance type acceleration sensor.
Specifically, accelerometer is used for gathering the acceleration information of virtual reality terminal, produces including motion
The acceleration information that raw acceleration information and rotary motion produce, leads to the acceleration information collected
Cross the frame frequency generated after processor processes for playing video information to be played, by be played
After video information is decoded, this frame frequency is used to play out, it is possible to make the video figure that user sees
As keeping consistent with the action of user self, facilitate user to the imitation of action in video, improve
The quality of instruction of video teaching and teaching efficiency.
It addition, frame frequency refers to projection each second or the frame of display or amount of images, for display,
Frame frequency is the highest, and video information is play the most smooth, but for virtual reality terminal, owing to processing
Device and the impact of display, the problem that there is also retardation rate at present, so-called retardation rate refers to that virtual reality is eventually
End and the matching degree of user's head movement, postpone including in inter-frame delay and frame, inter-frame delay finger
Process between each frame and display time in the picture that portion rotates through, inter-frame delay not can exceed that
20 milliseconds, otherwise have smear sense clearly, and when postponing to refer to user's head rotation in frame,
Constituting pixel meeting rebound initial point when each frame end of image frame, now, user's persistence of vision is existing
As the image of previous frame and this frame can be retained, produce motion blur phenomenon.In order to reduce retardation rate, promote
User's experience to virtual reality terminal unit, on the one hand can improve picture refreshing rate, by picture brush
New rate arranges more than 50FPS (Frame Per Second, transmission frame number per second), when picture more
When switching continuously, user's visual system can persistently receive information, if refresh rate is sufficiently high, Yong Huhui
Thoroughly can not be identified real and virtual, on the other hand can also use the sunset glow reducing display screen
(Persistence) method, but reduce sunset glow and relate to the material of display screen, such as LCD screen because of
For using backlight principle, produce image by additional light source projection, relate to response time, so nothing
Method accomplishes low sunset glow, and Organic Light Emitting Diode (ORGANIC LIGHT EMITTING
DIODE) display screen belongs to active illuminating display screen, and each pixel is luminous, saves corresponding step
Suddenly, it is possible to achieve low sunset glow, i.e. use OLED display screen replace LCDs (LCD,
LIQUID CRYSTAL DISPLAY), it is also possible to reduce retardation rate, i.e. use OLED to show
Screen replaces LCDs (LCD, LIQUID CRYSTAL DISPLAY), it is also possible to reduce
Retardation rate.
In technique scheme, it is preferable that accelerometer also includes: gyroscope, it is used for gathering void
Intend the spatial position change information of non-real end；Processor is additionally operable to: according to spatial position change information
Adjust the broadcasting visual angle of video information to be played.
In this technical scheme, gather virtual reality eventually by being arranged at the gyroscope of virtual reality terminal
The change in location information of end, and determine that the broadcasting of video information to be played regards according to change in location information
Angle, makes user that video information can carry out the observation of multi-angle, it is achieved that video information to be played
To play the holding of visual angle and the anglec of rotation of virtual reality terminal consistent, improve the use body of user
Test.
Specifically, gyroscope can gather the angular velocity information moved along an axle or several axle, according to
The angular velocity information collected judges the kinestate of virtual reality terminal, so that it is determined that virtual reality is eventually
The change in location information of end, generates broadcasting visual angle corresponding to this change in location information by processor and adjusts
Information, so that the visual angle of playing of video information to be played becomes along with the rotation of virtual reality terminal
Change, such that it is able to realize user the action in video is carried out 360 ° of observations.
By above technical scheme, gather acceleration by being arranged at the accelerometer of virtual reality terminal
Information, and the frame frequency of video information to be played is adjusted according to acceleration information, same to be supplied to user
Step video information, it is achieved that play the rhythm of video and the concordance of user action rhythm, facilitate use
Family, to the imitation of action in video, improves the learning efficiency of user, improves the use body of user
Test.
Accompanying drawing explanation
Fig. 1 shows the schematic flow diagram of player method according to an embodiment of the invention；
Fig. 2 shows the schematic block diagram of Play System according to an embodiment of the invention；
Fig. 3 shows the schematic block diagram of virtual reality terminal according to an embodiment of the invention；
Fig. 4 shows the schematic flow diagram of player method according to another embodiment of the invention.
Detailed description of the invention
In order to be more clearly understood that the above-mentioned purpose of the present invention, feature and advantage, below in conjunction with attached
The present invention is further described in detail by figure and detailed description of the invention.It should be noted that not
In the case of conflict, the feature in embodiments herein and embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but,
The present invention can implement to use other to be different from other modes described here, therefore, and the present invention
Protection domain do not limited by following public specific embodiment.
Fig. 1 shows the schematic flow diagram of player method according to an embodiment of the invention
As it is shown in figure 1, player method according to an embodiment of the invention, including: step
102, when user wears virtual reality terminal, whether detection virtual reality terminal is in motion shape
State；Step 104, when detecting that virtual reality terminal is kept in motion, gathers frequency according to default
Rate gathers the acceleration information of virtual reality terminal；Step 106, adjusts according to acceleration information and waits to broadcast
The frame frequency of the video information put, to be supplied to user's synchronization video information；Step 108, regards synchronization
Frequently information is shown in the vision coverage area of virtual reality terminal.
In this technical scheme, gather acceleration letter by being arranged at the accelerometer of virtual reality terminal
Breath, and adjust the frame frequency of video information to be played according to acceleration information, to be supplied to user's synchronization
Video information, it is achieved that play the rhythm of video and the concordance of user action rhythm, facilitate user
To the imitation of action in video, improve the learning efficiency of user, improve the experience of user.
Virtual reality terminal plays video information based on virtual reality technology, and virtual reality technology utilizes meter
A Virtual Space created by calculation machine, utilizes virtual reality terminal that user can be made to be immersed in a void completely
In the synthetic environment intended, utilize Binocular Vision Principle simultaneously, make user it can be seen that 3 D video is believed
Breath.
Specifically, accelerometer is used for gathering the acceleration information of virtual reality terminal, produces including motion
The acceleration information that raw acceleration information and rotary motion produce, leads to the acceleration information collected
Cross the frame frequency generated after processor processes for playing video information to be played, by be played
After video information is decoded, this frame frequency is used to play out, it is possible to make the video figure that user sees
As keeping consistent with the action of user self, facilitate user to the imitation of action in video, improve
The quality of instruction of video teaching and teaching efficiency.
It addition, frame frequency refers to projection each second or the frame of display or amount of images, for display,
Frame frequency is the highest, and video information is play the most smooth, but for virtual reality terminal, owing to processing
Device and the impact of display, the problem that there is also retardation rate at present, so-called retardation rate refers to that virtual reality is eventually
End and the matching degree of user's head movement, postpone including in inter-frame delay and frame, inter-frame delay finger
Process between each frame and display time in the picture that portion rotates through, inter-frame delay not can exceed that
20 milliseconds, otherwise have smear sense clearly, and when postponing to refer to user's head rotation in frame,
Constituting pixel meeting rebound initial point when each frame end of image frame, now, user's persistence of vision is existing
As the image of previous frame and this frame can be retained, produce motion blur phenomenon, in order to reduce retardation rate, a side
Picture refreshing rate can be improved in face, arranges picture refreshing rate more than 50FPS (Frame Per
Second, transmission frame number per second), when picture switches more continuously, user's visual system can continue
Reception information, if refresh rate is sufficiently high, user can thoroughly can not be identified real and virtual, the opposing party
Face can reduce sunset glow (Persistence), but reduce sunset glow and relate to the material of display screen, such as
LCD screen, because using backlight principle, produces image by additional light source projection, when relating to response
Between, so low sunset glow cannot be accomplished, and Organic Light Emitting Diode (ORGANIC LIGHT
EMITTING DIODE) display screen belongs to active illuminating display screen, and each pixel is luminous, saves
Corresponding steps, it is possible to achieve low sunset glow, i.e. uses OLED display screen to replace LCDs
(LCD, LIQUID CRYSTAL DISPLAY), it is also possible to reduce retardation rate.
In technique scheme, it is preferable that adjust video information to be played according to acceleration information
Frame frequency, to be supplied to user's synchronization video information, specifically include following steps: according to default frame
Frequently the corresponding relation with acceleration information determines the frame frequency of synchronization video information.
In this technical scheme, need the corresponding relation presetting frame frequency with acceleration information, when to be played
The rhythm play of video information when needing rhythm holding that virtual reality terminal move consistent, by this
Corresponding relation determines the frame frequency of synchronization video information, to be supplied to user's synchronization video information, it is therefore prevented that
Owing to video information is play too fast or crosses the slow learning efficiency and the learning effect affecting user.
Specifically, predetermined acceleration is 0.1m/s2Time corresponding frame frequency be 80FPS, when virtual reality eventually
The acceleration information that end collects is less than 0.1m/s2Time, frame frequency can be reduced, such as collect adds
Velocity information is 0.08m/s2Time, frame frequency is adjusted to 64FPS, and works as what virtual reality terminal collected
Acceleration information is more than 0.1m/s2Time, then can improve frame frequency, the acceleration information such as collected
For 0.15m/s2Time, frame frequency is adjusted to 120FPS, thus ensure that video information is play and virtual reality
The synchronization of terminal motion.
In any of the above-described technical scheme, it is preferable that also include: gather the sky of virtual reality terminal
Between position change information；The broadcasting adjusting video information to be played according to spatial position change information regards
Angle.
In this technical scheme, gather virtual reality eventually by being arranged at the gyroscope of virtual reality terminal
The change in location information of end, and determine that the broadcasting of video information to be played regards according to change in location information
Angle, it is achieved that user can carry out the observation of multi-angle to video information, makes video information to be played
Play visual angle can with the anglec of rotation of virtual reality terminal keep consistent, improve the use of user
Experience.
Specifically, gyroscope can gather the angular velocity information moved along an axle or several axle, according to
The angular velocity information collected judges the kinestate of virtual reality terminal, so that it is determined that virtual reality is eventually
The change in location information of end, generates broadcasting visual angle corresponding to this change in location information by processor and adjusts
Information, so that the visual angle of playing of video information to be played becomes along with the rotation of virtual reality terminal
Change, such that it is able to realize user the action in video is carried out 360 ° of observations.
In any of the above-described technical scheme, it is preferable that preset frequency acquisition more than or equal to 20 millis
Second.
In this technical scheme, in order to ensure display quality, general requirement is opened from collection acceleration information
Begin to determine that frame frequency is less than 20 milliseconds to processor according to acceleration information, in order to make synchronization video believe
Breath can be normally displayed in the vision coverage area of virtual reality terminal, needs to be preset as being more than by frequency acquisition
Or the value equal to 20 milliseconds.
Fig. 2 shows the schematic block diagram of Play System according to an embodiment of the invention.
According to the third aspect of the invention we, it is also proposed that a kind of Play System 200, including: detection is single
Unit 202, for when user wears virtual reality terminal, whether detection virtual reality terminal is in fortune
Dynamic state；Collecting unit 204, is used for when detecting that virtual reality terminal is kept in motion, root
The acceleration information of virtual reality terminal is gathered according to default frequency acquisition；First adjustment unit 306, uses
In the frame frequency of the video information to be played according to acceleration information adjustment, to be supplied to user's synchronization video
Information；Display unit 208, for being shown in the visual district of virtual reality terminal by synchronization video information
Territory.
In this technical scheme, gather acceleration letter by being arranged at the accelerometer of virtual reality terminal
Breath, and adjust the frame frequency of video information to be played according to acceleration information, to be supplied to user's synchronization
Video information, it is achieved that play the rhythm of video and the concordance of user action rhythm, facilitate user
To the imitation of action in video, improve the learning efficiency of user, improve the experience of user.
Virtual reality terminal plays video information based on virtual reality technology, and virtual reality technology utilizes meter
A Virtual Space created by calculation machine, utilizes virtual reality terminal that user can be made to be immersed in a void completely
In the synthetic environment intended, utilize Binocular Vision Principle simultaneously, make user it can be seen that 3 D video is believed
Breath.
Specifically, accelerometer is used for gathering the acceleration information of virtual reality terminal, produces including motion
The acceleration information that raw acceleration information and rotary motion produce, leads to the acceleration information collected
Cross the frame frequency generated after processor processes for playing video information to be played, by be played
After video information is decoded, this frame frequency is used to play out, it is possible to make the video figure that user sees
As keeping consistent with the action of user self, facilitate user to the imitation of action in video, improve
The quality of instruction of video teaching and teaching efficiency.
It addition, frame frequency refers to projection each second or the frame of display or amount of images, for display,
Frame frequency is the highest, and video information is play the most smooth, but for virtual reality terminal, owing to processing
Device and the impact of display, the problem that there is also retardation rate at present.
So-called retardation rate refers to the matching degree of virtual reality terminal and user's head movement, prolongs including interframe
Late and postponing in frame, in the picture that inter-frame delay finger portion rotates through, the process between each frame is with aobvious
Showing the time, inter-frame delay not can exceed that 20 milliseconds, otherwise has smear sense clearly, and in frame
When postponing to refer to user's head rotation, the pixel meeting rebound when each frame end constituting image frame is former
Point, now, user's visual persistence phenomenon can retain the image of previous frame and this frame, produces smear existing
As, in order to reduce retardation rate, on the one hand can improve picture refreshing rate, picture refreshing rate is arranged super
Cross 50FPS (Frame Per Second, transmission frame number per second), when picture switches more continuously
Time, user's visual system can persistently receive information, if refresh rate is sufficiently high, user can thoroughly differentiate
Occur without real and virtual, on the other hand can reduce sunset glow (Persistence), but reduce sunset glow and relate to
And the material to display screen, such as LCD screen are because using backlight principle, are projected by additional light source
Produce image, relate to response time, so low sunset glow cannot be accomplished, and Organic Light Emitting Diode
(ORGANIC LIGHT EMITTING DIODE) display screen belongs to active illuminating display screen, often
Individual pixel is the most luminous, saves corresponding steps, it is possible to achieve low sunset glow, i.e. uses OLED display screen
Replace LCDs (LCD, LIQUID CRYSTAL DISPLAY), it is also possible to reduce and prolong
Rate late.
In technique scheme, it is preferable that the first adjustment unit 206 also includes: display unit
2062, for determining synchronization video information according to the corresponding relation of the frame frequency preset with acceleration information
Frame frequency.
In this technical scheme, need the corresponding relation presetting frame frequency with acceleration information, when to be played
The rhythm play of video information when needing rhythm holding that virtual reality terminal move consistent, by this
Corresponding relation determines the frame frequency of synchronization video information, to be supplied to user's synchronization video information, it is therefore prevented that
Owing to video information is play too fast or crosses the slow learning efficiency and the learning effect affecting user.
Specifically, predetermined acceleration is 0.1m/s2Time corresponding frame frequency be 80FPS, when virtual reality eventually
The acceleration information that end collects is less than 0.1m/s2Time, frame frequency can be reduced, such as collect adds
Velocity information is 0.08m/s2Time, frame frequency is adjusted to 64FPS, and works as what virtual reality terminal collected
Acceleration information is more than 0.1m/s2Time, then can improve frame frequency, the acceleration information such as collected
For 0.15m/s2Time, frame frequency is adjusted to 120FPS, thus ensure that video information is play and virtual reality
The synchronization of terminal motion.
In any of the above-described technical scheme, it is preferable that collecting unit 204 is additionally operable to: gather virtual
The spatial position change information of non-real end；Play System also includes: the second adjustment unit 210, uses
In the broadcasting visual angle adjusting video information to be played according to spatial position change information.
In this technical scheme, gather virtual reality eventually by being arranged at the gyroscope of virtual reality terminal
The change in location information of end, and determine that the broadcasting of video information to be played regards according to change in location information
Angle, it is achieved that user can carry out the observation of multi-angle to video information, makes video information to be played
Play visual angle can with the anglec of rotation of virtual reality terminal keep consistent, improve the use of user
Experience.
Specifically, gyroscope can gather the angular velocity information moved along an axle or several axle, according to
The angular velocity information collected judges the kinestate of virtual reality terminal, so that it is determined that virtual reality is eventually
The change in location information of end, generates broadcasting visual angle corresponding to this change in location information by processor and adjusts
Information, so that the visual angle of playing of video information to be played becomes along with the rotation of virtual reality terminal
Change, such that it is able to realize user the action in video is carried out 360 ° of observations.
In any of the above-described technical scheme, it is preferable that preset frequency acquisition more than or equal to 20 millis
Second.
In this technical scheme, in order to ensure display quality, general requirement is opened from collection acceleration information
Begin to determine that frame frequency is less than 20 milliseconds to processor according to acceleration information, in order to make synchronization video believe
Breath can be normally displayed in the vision coverage area of virtual reality terminal, needs to be preset as being more than by frequency acquisition
Or the value equal to 20 milliseconds.
Fig. 3 shows the schematic block diagram of virtual reality terminal according to an embodiment of the invention.
As it is shown on figure 3, virtual reality terminal 300 according to an embodiment of the invention, including: accelerate
Degree meter 302, for gathering the acceleration information of virtual reality terminal；Processor 304, with acceleration
Meter connects, for adjusting the frame frequency of video information to be played according to acceleration information, to be supplied to use
Family synchronization video information；Display 306, is connected with processor, for synchronization video information being shown
Vision coverage area in virtual reality terminal.
Gather acceleration information by accelerometer, and adjust video to be played according to acceleration information
The frame frequency of information, to be supplied to user's synchronization video information, it is achieved that plays rhythm and the user of video
The concordance of rhythm of action, facilitates user to the imitation of action in video, improves the study of user
Efficiency, improves the experience of user.
Virtual reality terminal 300 plays video information, virtual reality technology profit based on virtual reality technology
Create a Virtual Space with computer, utilize virtual reality terminal 300 that user can be made to immerse completely
In a virtual synthetic environment, utilize Binocular Vision Principle simultaneously, make user it can be seen that three-dimensional
Video information.Wherein, accelerometer also includes acceleration transducer, such as piezoelectric acceleration transducer
And/or piezoresistance type acceleration sensor.
Specifically, accelerometer 302 is used for gathering the acceleration information of virtual reality terminal, including fortune
The acceleration information that the acceleration information of movable property life and rotary motion produce, the acceleration that will collect letter
Breath generates the frame frequency for playing video information to be played after being processed by processor 304, will
After video information to be played is decoded, this frame frequency is used to play out, it is possible to make user see
Video image and user self action keep consistent, facilitate user to the mould of action in video
Imitative, improve quality of instruction and the teaching efficiency of video teaching.
It addition, frame frequency refers to projection each second or the frame of display or amount of images, for display 306
Speech, frame frequency is the highest, and video information is play the most smooth, but for virtual reality terminal 300,
Due to processor 304 and the impact of display 306, the problem that there is also retardation rate at present, what is called is prolonged
Rate refers to the matching degree of virtual reality terminal 300 and user's head movement late, including inter-frame delay and frame
Interior delay, in the picture that inter-frame delay finger portion rotates through when process between each frame and display
Between, inter-frame delay not can exceed that 20 milliseconds, otherwise has smear sense clearly, and postpones in frame
When referring to user's head rotation, constitute pixel meeting rebound initial point when each frame end of image frame,
Now, user's visual persistence phenomenon can retain the image of previous frame and this frame, produces motion blur phenomenon,
In order to reduce retardation rate, on the one hand can improve picture refreshing rate, picture refreshing rate be arranged and exceedes
50FPS (Frame Per Second, transmission frame number per second), when picture switches more continuously, uses
Family visual system can persistently receive information, if refresh rate is sufficiently high, user can thoroughly can not be identified existing
Real and virtual, on the other hand can reduce sunset glow (Persistence), but reduce sunset glow and relate to show
The material of display screen, such as LCD screen, because using backlight principle, produce figure by additional light source projection
Picture, relates to response time, so low sunset glow cannot be accomplished, and Organic Light Emitting Diode
(ORGANIC LIGHT EMITTING DIODE) display screen belongs to active illuminating display screen, often
Individual pixel is the most luminous, saves corresponding steps, it is possible to achieve low sunset glow, i.e. uses OLED display screen
Replace LCDs (LCD, LIQUID CRYSTAL DISPLAY), it is also possible to reduce and prolong
Rate late.
In technique scheme, it is preferable that accelerometer 302 also includes: gyroscope 3022,
For gathering the spatial position change information of virtual reality terminal 300；Processor 304 is additionally operable to: root
The broadcasting visual angle of video information to be played is adjusted according to spatial position change information.
In this technical scheme, the position being gathered virtual reality terminal 300 by gyroscope 3022 is become
Change information, and the broadcasting visual angle of video information to be played is determined according to change in location information, make user
Video information can be carried out the observation of multi-angle, it is achieved that the broadcasting visual angle of video information to be played
Keep consistent with the anglec of rotation of virtual reality terminal 300, improve the experience of user.
Specifically, gyroscope 3022 can gather the angular velocity letter moved along an axle or several axle
Breath, according to the kinestate of the angular velocity information judgement virtual reality terminal 300 collected, thus really
Determine the change in location information of virtual reality terminal, generate this change in location information pair by processor 304
The broadcasting visual angle adjustment information answered, so that the broadcasting visual angle of video information to be played is along with virtual reality
The rotation of terminal 300 and change, such that it is able to realize user the action in video is carried out 360 ° of sights
Examine.
Fig. 4 shows the schematic flow diagram of player method according to an embodiment of the invention.
As shown in Figure 4, player method according to an embodiment of the invention, including: step
402, user puts on virtual reality device, and carries out body rotations；Step 404, controls gyroscope
Data acquisition is carried out Deng sensor；Step 406, calculates angular velocity and acceleration that human body rotates, and
Pass to processor；Step 408, is shown in the visual district of virtual reality terminal by synchronization video information
Territory；Step 410, processor according to the angular velocity received and acceleration to 3D video at
Reason；Step 412, the 3D video after processing is sent to video player.
Gathered acceleration information and the change in location information of virtual reality terminal by accelerometer, and lead to
Cross processor and adjust the frame frequency of video information to be played according to acceleration information, and become according to position
Change information adjusts the broadcasting angle of video information, it is achieved that play rhythm and the user action rhythm of video
Concordance, facilitate user to the imitation of action in video, improve the learning efficiency of user, carry
Rise the experience of user.
Implementation below is also included but not limited to according to embodiments of the invention:
Except being used alone virtual reality technology, it is also possible to by virtual reality technology and augmented reality
Being combined, in the environment of true man's teaching, when user is in the face of teacher, user can directly imitate
The action of teacher, and when the action of teacher cannot be continued to see after user turns round, can be at gyroscope
The processor of virtual reality and the process of augmented reality is triggered while gathering spatial position change information
Device, by the video information prestored and the seizure to teacher's action before being combined, generates after combining
Projection information and project to the vision coverage area of user, on the one hand by highly integrated can simplify virtual
Real world devices, directly projects the view of user by low level laser or light emitting diode by image
On film, have the advantages that not block the visual field, on the other hand use true man's teaching and video teaching to combine,
Can also improve the quality of teaching and the learning efficiency.
Technical scheme is described in detail, it is contemplated that correlation technique proposes above in association with accompanying drawing
The technical problem how being supplied to user's synchronization video information, the present invention proposes a kind of new broadcasting
Method, Play System and virtual reality terminal, adopt by being arranged at the accelerometer of virtual reality terminal
Collection acceleration information, and adjust the frame frequency of video information to be played according to acceleration information, to provide
To user's synchronization video information, it is achieved that play the rhythm of video and the concordance of user action rhythm,
Facilitate user to the imitation of action in video, improve the learning efficiency of user, improve user's
Experience.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for
For those skilled in the art, the present invention can have various modifications and variations.All essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention
Protection domain within.
Claims (10)
1. a player method, it is characterised in that including:
When user wears virtual reality terminal, detect whether described virtual reality terminal is in motion shape
State；
When detecting that described virtual reality terminal is kept in motion, gather according to default frequency acquisition
The acceleration information of described virtual reality terminal；
The frame frequency of video information to be played is adjusted, to be supplied to described use according to described acceleration information
Family synchronization video information；
Described synchronization video information is shown in the vision coverage area of described virtual reality terminal.
Player method the most according to claim 1, it is characterised in that add described in described basis
Velocity information adjusts the frame frequency of video information to be played, to be supplied to described user's synchronization video letter
Breath, specifically includes following steps:
Corresponding relation according to default frame frequency Yu described acceleration information determines described synchronization video information
Frame frequency.
Player method the most according to claim 2, it is characterised in that also include:
Gather the spatial position change information of described virtual reality terminal；
The broadcasting visual angle of described video information to be played is adjusted according to described spatial position change information.
Player method the most according to any one of claim 1 to 3, it is characterised in that institute
State default frequency acquisition more than or equal to 20 milliseconds.
5. a Play System, it is characterised in that including:
Detector unit, for when user wears virtual reality terminal, detects described virtual reality terminal
Whether it is kept in motion；
Collecting unit, for when detecting that described virtual reality terminal is kept in motion, according in advance
If frequency acquisition gathers the acceleration information of described virtual reality terminal；
First adjustment unit, for adjusting the frame of video information to be played according to described acceleration information
Frequently, to be supplied to described user's synchronization video information；
Display unit, for being shown in the visual of described virtual reality terminal by described synchronization video information
Region.
Play System the most according to claim 5, it is characterised in that described first adjusts list
Unit also includes:
Determine unit, for determining institute according to the corresponding relation of the frame frequency preset with described acceleration information
State the frame frequency of synchronization video information.
Play System the most according to claim 6, it is characterised in that
Described collecting unit is additionally operable to: gather the spatial position change information of described virtual reality terminal；
Described Play System also includes:
Second adjustment unit, for adjusting described to be played regarding according to described spatial position change information
Frequently the broadcasting visual angle of information.
8. according to the Play System according to any one of claim 5 to 7, it is characterised in that institute
State default frequency acquisition more than or equal to 20 milliseconds.
9. a virtual reality terminal, it is characterised in that including:
Accelerometer, for gathering the acceleration information of described virtual reality terminal；
Processor, is connected with described accelerometer, for adjusting to be played according to described acceleration information
The frame frequency of video information, to be supplied to user's synchronization video information；
Display, is connected with described processor, for described synchronization video information is shown in described void
Intend the vision coverage area of non-real end.
Virtual reality terminal the most according to claim 9, it is characterised in that described acceleration
Meter also includes:
Gyroscope, for gathering the spatial position change information of described virtual reality terminal；
Described processor is additionally operable to: adjust described to be played regarding according to described spatial position change information
Frequently the broadcasting visual angle of information.
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| CN111179694A (en) * | 2019-12-02 | 2020-05-19 | 广东小天才科技有限公司 | Dance teaching interaction method, intelligent sound box and storage medium |
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