CN109104603A - A kind of viewpoint compensation method, apparatus, electronic equipment and storage medium - Google Patents
A kind of viewpoint compensation method, apparatus, electronic equipment and storage medium Download PDFInfo
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- CN109104603A CN109104603A CN201811119841.9A CN201811119841A CN109104603A CN 109104603 A CN109104603 A CN 109104603A CN 201811119841 A CN201811119841 A CN 201811119841A CN 109104603 A CN109104603 A CN 109104603A
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Abstract
The embodiment of the invention discloses a kind of viewpoint compensation method, apparatus, electronic equipment and storage mediums.This method comprises: being tracked the first position coordinate and second position coordinate of target at the time of by after acquisition current time and the first delay；Determine the distance between first position coordinate and the second position coordinate difference；The view offset amount between different moments watched view is determined according to first position coordinate, second position coordinate and distance difference；According to distance difference, update for determine distance between left virtual camera and right virtual camera apart from adjustment parameter；According to apart from adjustment parameter and view offset amount, viewpoint compensation amount is determined, to carry out viewpoint compensation according to viewpoint compensation amount.Tracked object moves left and right when reduced by adopting the above technical scheme due to viewing naked eye 3D rendering, caused by right and left eye view the probability that is occurred of crosstalk phenomenon, improve the viewing experience of user.
Description
Technical field
The present embodiments relate to stereo display technique more particularly to a kind of viewpoint compensation method, apparatus, electronic equipment and
Storage medium.
Background technique
When carrying out naked eye 3D display in naked eye 3D display equipment, row's figure, stereo-picture packet are carried out to stereo-picture first
Left-eye view and right-eye view are included, row schemes i.e. left-eye view and right-eye view and is shown in display panel according to centainly regularly arranged
On, while being equipped with light-dividing device on a display panel and for example can be the light splitting effect of cylindrical lenses, by left-eye view
It is sent into the left eye of user, right-eye view is sent into the right eye of user, so that user be made to watch 3D image.
However, due to human eye follow-up mechanism hardware limitation and software calculate the factors such as time-consuming lead to not low delay to
Optimal row's figure mode out, so that human eye follow-up mechanism obtains when viewer is parallel to display screen or so and fast moves
Human eye coordinates postpone with certain space.Therefore, carrying out best row's figure based on obtained human eye coordinates necessarily causes 3D solid aobvious
There is serious right and left eyes image crosstalk phenomenon in the decline for showing effect when watching user.
Summary of the invention
The present invention provides a kind of viewpoint compensation method, apparatus, electronic equipment and storage medium, to reduce naked eye 3D display skill
There is the probability of right and left eyes image crosstalk when human eye is mobile in art.
In a first aspect, the embodiment of the invention provides a kind of viewpoint compensation methods, comprising:
Acquisition current time is tracked the first position coordinate of target；
The second position coordinate of target is tracked described in the correspondence moment after obtaining the first delay；
Determine the distance between the first position coordinate and the second position coordinate difference；
According to the first position coordinate, the second position coordinate and the distance difference, determine that different moments are seen
See the view offset amount between view；
According to the distance difference, update apart from adjustment parameter；Wherein, described left virtual for determining apart from adjustment parameter
The distance between camera and right virtual camera；
Viewpoint compensation amount is determined apart from adjustment parameter and the view offset amount according to described, to mend according to the viewpoint
The amount of repaying carries out viewpoint compensation.
Second aspect, the embodiment of the invention also provides a kind of viewpoint compensation devices, comprising:
First position coordinate obtaining module, for obtaining the first position coordinate that current time is tracked target；
Second position coordinate obtaining module, for obtain first delay after the correspondence moment described in be tracked the second of target
Position coordinates；
Distance difference determining module, for determining the distance between the first position coordinate and the second position coordinate
Difference；
View offset amount determining module, for according to the first position coordinate, the second position coordinate and it is described away from
Deviation value determines the view offset amount between different moments watched view；
Apart from adjustment parameter update module, for updating apart from adjustment parameter according to the distance difference；Wherein, described
Apart from adjustment parameter for determining the distance between left virtual camera and right virtual camera；
Viewpoint compensation amount determining module, for, apart from adjustment parameter and the view offset amount, determining viewpoint according to described
Compensation rate, to carry out viewpoint compensation according to the viewpoint compensation amount.
The third aspect, the embodiment of the invention also provides a kind of electronic equipment, including human eye follow-up mechanism and display device,
Further include:
One or more processors；
Storage device, for storing one or more programs；
One or more of programs are executed by one or more of processors, so that one or more of processors
A kind of viewpoint compensation method as provided by first aspect embodiment of realization.
Fourth aspect, the embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer
Program, which is characterized in that a kind of viewpoint compensation as provided by first aspect embodiment is realized when the program is executed by processor
Method.
The first position that target is tracked at the time of the embodiment of the present invention is by after acquisition current time and the first delay is sat
Mark and second position coordinate；Determine the distance between first position coordinate and the second position coordinate difference；It is sat according to first position
Mark, second position coordinate and distance difference determine the view offset amount between different moments watched view；According to range difference
Value, update for determine distance between left virtual camera and right virtual camera apart from adjustment parameter；According to apart from adjustment parameter
With view offset amount, viewpoint compensation amount is determined, to carry out viewpoint compensation according to viewpoint compensation amount.It reduces by adopting the above technical scheme
Tracked object moves left and right when due to viewing naked eye 3D rendering, caused by the crosstalk phenomenon of right and left eye view occurred
Probability, improve the viewing experience of user.
Detailed description of the invention
Fig. 1 is the flow chart of one of embodiment of the present invention one viewpoint compensation method；
Fig. 2 is the flow chart of one of embodiment of the present invention two viewpoint compensation method；
Fig. 3 is the flow chart of one of embodiment of the present invention three viewpoint compensation method；
Fig. 4 is the flow chart of one of embodiment of the present invention four viewpoint compensation method；
Fig. 5 is the structure chart of one of embodiment of the present invention five viewpoint compensation device；
Fig. 6 is the hardware structural diagram for a kind of electronic equipment that the embodiment of the present invention six provides.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is the flow chart of one of embodiment of the present invention one viewpoint compensation method.The embodiment of the present invention is suitable for
The case where watching naked eye 3D display picture, this method is executed by viewpoint compensation device, and the device is by software and/or hardware reality
It is existing, and concrete configuration is in the electronic equipment for carrying out naked eye 3D display.
Viewpoint compensation method as shown in Figure 1, comprising:
S110, acquisition current time are tracked the first position coordinate of target.
Wherein, being tracked target is to watch the left eye and/or right eye of the viewing user of naked eye 3D display picture.Wherein,
One position coordinates are viewing user's human eye in current time left eye coordinates and/or right eye coordinate, or the midpoint pair for right and left eyes
The place between the eyebrows coordinate answered.Wherein, first position coordinate is 3 d space coordinate.
Specifically, obtaining the corresponding left eye coordinates of current time viewing user's left eye and/or the right side from human eye follow-up mechanism
The corresponding right eye coordinate of eye, as first position coordinate.
The second position coordinate of target is tracked described in the correspondence moment after S120, the first delay of acquisition.
Wherein, the first delay is preset delay time, is set based on experience value by technical staff.
Specifically, corresponding to the corresponding left side of moment same viewing user's left eye after obtaining the first delay in human eye follow-up mechanism
Eye coordinates and/or the corresponding right eye coordinate of right eye, as second position coordinate.Wherein, second position coordinate is space three-dimensional seat
Mark.
S130, the distance between the first position coordinate and the second position coordinate difference are determined.
According to three-dimensional space Euclidean distance calculation formula, the distance between first position coordinate and second position coordinate are determined
Difference.
Specifically, according to formulaIt determines
The distance between first position coordinate and the second position coordinate difference；Wherein dist is distance difference, (xt,yt,zt) be it is current when
Carve viewing user's left eye, right eye or place between the eyebrows coordinate, (xt+Δt,yt+Δt,zt+Δt) left to correspond to moment viewing user after the first delay
Eye, right eye or place between the eyebrows coordinate, (ax,ay,az) be different directions weighted value；Wherein, the direction x is to be parallel to naked eye 3D picture to show
The horizontal direction of display screen；The direction y is the vertical direction for being parallel to naked eye 3D picture display screen；The direction z is to draw perpendicular to naked eye 3D
The direction of face display screen.Wherein, place between the eyebrows coordinate takes mean value to obtain by left eye coordinates and the summation of right eye coordinate.It should be noted that
Left eye coordinates and right eye coordinate are the coordinate that 3D display picture corresponds to virtual world.
S140, according to the first position coordinate, the second position coordinate and the distance difference, determine different moments
View offset amount between watched view.
Wherein, view offset amount is to correspond to offset distance between view shown by the moment after current time and the first delay
From.Wherein, view offset amount is the deviant that 3D display picture corresponds to virtual world.
S150, according to the distance difference, update apart from adjustment parameter.
Wherein, described to be used to determine the distance between left virtual camera and right virtual camera apart from adjustment parameter.Wherein, away from
It is specially the distance between left virtual camera and right the virtual camera accounting between maximum distance from adjustment parameter.
Wherein, left virtual camera is used to render the left-eye view that viewing user's left eye is watched, and right virtual camera is used for wash with watercolours
The right-eye view that dye viewing user's right eye is watched.
Illustratively, it can positively or negatively be updated according to the size of distance difference apart from adjustment parameter.Wherein, positive
It updates and tunes up the distance between left virtual camera and right virtual camera apart from adjustment parameter correspondence；Negative sense is updated apart from adjustment parameter
Correspondence turns the distance between left virtual camera and right virtual camera down.
S160, viewpoint compensation amount is determined apart from adjustment parameter and the view offset amount according to described, according to the view
Point compensation rate carries out viewpoint compensation.
According to the adjustable accounting of residue for determining distance between left virtual camera and right virtual camera apart from adjustment parameter, and root
According to remaining adjustable accounting and view offset amount, viewpoint compensation amount is determined；The current view point of target is tracked described in determination, and will
The viewpoint compensation amount is superimposed to the current view point and obtains target view, to determine display row's figure according to the target view.
The first position that target is tracked at the time of the embodiment of the present invention is by after acquisition current time and the first delay is sat
Mark and second position coordinate；Determine the distance between first position coordinate and the second position coordinate difference；It is sat according to first position
Mark, second position coordinate and distance difference determine the view offset amount between different moments watched view；According to range difference
Value, update for determine distance between left virtual camera and right virtual camera apart from adjustment parameter；According to apart from adjustment parameter
With view offset amount, viewpoint compensation amount is determined, to carry out viewpoint compensation according to viewpoint compensation amount.It reduces by adopting the above technical scheme
Tracked object moves left and right when due to viewing naked eye 3D rendering, caused by the crosstalk phenomenon of right and left eye view occurred
Probability, improve the viewing experience of user.
Embodiment two
Fig. 2 is the flow chart of one of embodiment of the present invention two viewpoint compensation method.The embodiment of the present invention is above-mentioned each
On the basis of the technical solution of embodiment, subdivision optimization has been carried out.
Further, the distance difference be not less than crosstalk threshold value when, by operation " according to the first position coordinate,
The second position coordinate and the distance difference determine the view offset amount between different moments watched view " it is refined as
" according to the size of the first component of the first position coordinate and the first component of the second position coordinate, determine the quilt
Track the moving direction of target；According to the distance difference and the crosstalk threshold value, determine described in be tracked the movement of target away from
From；According to the moving direction and the moving distance, the view offset amount is determined ", it is parallel to perfect viewing user aobvious
When display screen curtain moves left and right too fast, the determination mechanism of corresponding view offset amount.
Further, the distance difference non-zero and be less than crosstalk threshold value when, by operation " according to the first position sit
Mark, the second position coordinate and the distance difference, determine the view offset amount between different moments watched view " refinement
For " determining that the view offset amount is 0 ", when being parallel to display screen or so to improve viewing user and do not move or slowly move,
The determination mechanism of corresponding view offset amount.
Viewpoint compensation method as shown in Figure 2, comprising:
S210, acquisition current time are tracked the first position coordinate of target.
According to the left eye coordinates and right eye coordinate of the human eye tracing module at current time, and by the left eye coordinates at current time
The place between the eyebrows coordinate being averaged with right eye coordinate is as first position coordinate.
The second position coordinate of target is tracked described in the correspondence moment after S220, the first delay of acquisition.
According to the left eye coordinates and right eye coordinate of the human eye tracing module for corresponding to the moment after the first delay, and first is delayed
The place between the eyebrows coordinate that the left eye coordinates and right eye coordinate for corresponding to the moment afterwards are averaged is as second position coordinate.
S230, the distance between the first position coordinate and the second position coordinate difference are determined.
S240, judge whether the distance difference is not less than crosstalk threshold value；If so, executing S251；If it is not, then executing
S252。
Distance difference is compared with crosstalk threshold value, when distance difference be more than or equal to crosstalk threshold value, show to prolong first
When the period in the excessive velocities that move left and right in the x-direction of viewing user, it is therefore desirable to carry out viewpoint compensation, used to avoid viewing
There is right and left eyes image crosstalk phenomenon in viewing in family.When distance difference be less than crosstalk threshold value, show in the first delay time section
Crosstalk will not be generated in the speed that the direction x moves left and right by watching user.
Wherein, crosstalk threshold value by technical staff based on experience value or experimental result determines.
S251, according to the first position coordinate, the second position coordinate and the distance difference, determine different moments
View offset amount between watched view；Continue to execute S260.
When distance difference is greater than or equal to crosstalk threshold value, show that watch user is moved through in the first delay time section
Fastly, therefore the view watched within the time period of user will appear offset.
According to the range difference of first position coordinate, second position coordinate and first position coordinate and second position coordinate
Value corresponds to the offset of the watched view of moment user after determining current time and the first delay.
Illustratively, according to the first component of the first component of the first position coordinate and the second position coordinate
Size, determine described in be tracked the moving direction of target；According to the distance difference and the crosstalk threshold value, described chased after is determined
The moving distance of track target；According to the moving direction and the moving distance, the view offset amount is determined.Wherein, first
Component is x durection component.
Illustratively, it according to the size of the first component in the first position coordinate and the second position coordinate, determines
The moving direction for being tracked target, if may is that, the first component in the second position coordinate is less than described first
The first component in coordinate is set, determines that the moving direction is negative direction；If the first component in the second position coordinate is not
Less than the first component in the first position coordinate, determine that the moving direction is positive direction.Wherein, negative direction and positive direction
It is parallel with the direction x, and negative direction is contrary with positive direction.
Illustratively, according to the distance difference and the crosstalk threshold value, determine described in be tracked the moving distance of target,
It may is that according to formula h md=(2 × dist/thrc)0.5, the moving distance of target is tracked described in determination；Wherein, hmd is
The moving distance, dist are the distance difference, thrcFor the crosstalk threshold value.
Illustratively, it according to the moving direction and the moving distance, determines the view offset amount, may is that and set
The absolute value for determining view offset amount is moving distance；When moving direction is negative direction, view offset amount is set as negative value；Work as shifting
When dynamic direction is positive direction, view offset amount is set as positive value.
S252, determine that the view offset amount is 0；Continue to execute S260.
When distance difference is less than crosstalk threshold value, show that watching movement of the user in the first delay time section will not generate
Crosstalk, therefore the view that user is watched within the time period is not in offset, or the offset occurred will not be to
Viewing user brings discomfort, therefore can set 0 for view offset amount, is ignored.
S260, according to the distance difference, update apart from adjustment parameter；Wherein, described to be used to determine apart from adjustment parameter
The distance between left virtual camera and right virtual camera.
Specifically, updating the distance if the distance difference is not less than crosstalk threshold value according to negative growth factor and adjusting
Parameter；If the distance difference non-zero and be less than crosstalk threshold value, according to positive regulating factor update it is described apart from adjustment parameter；If
The distance difference is zero, then keeps described constant apart from adjustment parameter.
Wherein, updated according to negative growth factor it is described apart from adjustment parameter, specifically: on the basis of apart from adjustment parameter
It is superimposed negative growth factor, is obtained new apart from adjustment parameter.Because negative growth factor is negative value, obtained new distance tune
Save parameter it is smaller apart from adjustment parameter than what is do not updated, correspondingly, according to it is new apart from adjustment parameter determine left virtual camera and
The distance between right virtual camera will also become smaller.
Wherein, updated according to positive regulating factor it is described apart from adjustment parameter, specifically: on the basis of apart from adjustment parameter
It is superimposed positive regulating factor, is obtained new apart from adjustment parameter.Because positive regulating factor is positive value, obtained new distance tune
Save parameter it is bigger apart from adjustment parameter than what is do not updated, correspondingly, according to it is new apart from adjustment parameter determine left virtual camera and
The distance between right virtual camera will also become larger.
S270, viewpoint compensation amount is determined apart from adjustment parameter and the view offset amount according to described, according to the view
Point compensation rate carries out viewpoint compensation.
The embodiment of the present invention passes through first position coordinate and second position coordinate when distance difference is not less than crosstalk threshold value
The size of the first component determine and be tracked the moving direction of target, target is tracked by distance difference and the determination of crosstalk threshold value
Moving distance, and view offset amount is finally determined according to moving direction and moving distance, perfect viewing user is parallel to aobvious
When display screen curtain moves left and right too fast, the determination mechanism of corresponding view offset amount provides foundation for subsequent progress viewpoint compensation, together
When avoid the generation of crosstalk phenomenon.When distance difference is less than crosstalk threshold value, view offset amount is directly assigned a value of 0, it is perfect
When viewing user is parallel to display screen or so and does not move or slowly move, the determination mechanism of corresponding view offset amount, simultaneously
Reduce unnecessary calculating.
Embodiment three
Fig. 3 is the flow chart of one of embodiment of the present invention three viewpoint compensation method.The embodiment of the present invention is above-mentioned each
On the basis of the technical solution of embodiment, additional optimization has been carried out.
Further, additional " to obtain the after operation " obtain current time be tracked the first position coordinate of target "
The third place coordinate of target is tracked described in the correspondence moment after two delays；According to the first position coordinate and the third
Position coordinates determine the midpoint of the left virtual camera Yu the right virtual camera according to default interpolating function and interpolation factor
Coordinate；According to the midpoint coordinates, the position coordinates of the left virtual camera and the right virtual camera are adjusted；Wherein, described
Second delay is less than first delay ", to provide the picture most preferably rendered to viewing user, while avoiding virtual camera mobile
It jumps and brings visual discomfort to user.
Further, additional " according to described after operation " according to the distance difference, updating apart from adjustment parameter "
Apart from adjustment parameter, the target range between the left virtual camera and the right virtual camera is determined；It is sat according to the midpoint
Mark and the target range adjust the position coordinates of the left virtual camera and the right virtual camera ", it is mobile to avoid user
When viewing naked eye 3D picture there is spinning sensation.
Viewpoint compensation method as shown in Figure 3, comprising:
S310, acquisition current time are tracked the first position coordinate of target.
Wherein, tracked object be watch user left eye and right eye, corresponding first position coordinate be left eye coordinates and
Place between the eyebrows coordinate determined by the average value of right eye coordinate.
The third place coordinate of target is tracked described in the correspondence moment after S321, the second delay of acquisition.
Wherein, the third place coordinate is that same viewing user corresponds to the left eye coordinates at moment after the second delay and right eye is sat
Place between the eyebrows coordinate determined by target average value.
Wherein, the second delay is set based on experience value by technical staff.
S322, according to the first position coordinate and the third place coordinate, according to default interpolating function and interpolation because
Son determines the midpoint coordinates of the left virtual camera Yu the right virtual camera.
It is the starting point of interpolation by first position setting coordinate, is the terminating point of interpolation by the third place setting coordinate；It presses
According to default interpolating function and interpolation factor, interpolation determines the midpoint coordinates of left virtual camera and right virtual camera.Wherein, it is poor to preset
Value function can be linear difference, batten difference or piecewise interpolation etc..
S323, according to the midpoint coordinates, adjust the position coordinates of the left virtual camera and the right virtual camera.
Specifically, adjusting at the midpoint of left virtual camera and right virtual camera to corresponding with midpoint coordinates, and keep left
The distance between virtual camera and right virtual camera are constant, fast in user to pass through the position for smoothly changing left and right virtual camera
By the movement of cooperation left and right virtual camera in the case that speed is mobile, make it possible to provide the picture most preferably rendered to viewing user
Face.
It should be noted that in order to avoid the frequent mobile caused float phenomenon of left and right virtual camera, therefore can
" judge whether the distance between first position coordinate and the third place coordinate are more than or equal to midpoint and adjust with additional before S322
The decision condition of threshold value " then continues to execute S322 when meeting decision condition, otherwise keeps midpoint coordinates constant, directly executes
S330。
The second position coordinate of target is tracked described in the correspondence moment after S330, the first delay of acquisition.
Wherein, second delay is less than first delay.Preferably, the integral multiple that the first delay is delayed for second.
S340, the distance between the first position coordinate and the second position coordinate difference are determined.
S350, according to the first position coordinate, the second position coordinate and the distance difference, determine different moments
View offset amount between watched view.
S360, according to the distance difference, update apart from adjustment parameter.
S371, according to described apart from adjustment parameter, determine the mesh between the left virtual camera and the right virtual camera
Subject distance.
It wherein, is specially the distance between left virtual camera and right virtual camera between maximum distance apart from adjustment parameter
Accounting.According to the product of the maximum distance between adjustment parameter and preset left and right virtual camera, left virtual camera is obtained
Target range between right virtual camera.Wherein, the maximum distance between the virtual camera of left and right and viewing user's sets itself
Interpupillary distance it is corresponding.
S372, according to the midpoint coordinates and the target range, adjust the left virtual camera and the right virtualphase
The position coordinates of machine.
Take determining midpoint coordinates as the midpoint of left virtual camera and right virtual camera, is divided centered on midpoint coordinates
Left virtual camera coordinate is determined after not adjusting to the left, right virtual camera coordinate is determined after adjusting to the right, so that left and right adjusted
The distance between virtual camera coordinate is target range.
S380, viewpoint compensation amount is determined apart from adjustment parameter and the view offset amount according to described, according to the view
Point compensation rate carries out viewpoint compensation.
The embodiment of the present invention by corresponding to the third place coordinate that the moment is tracked target after additional second delay, and according to
First position coordinate and the third place coordinate, interpolation determine the midpoint coordinates of left virtual camera and right virtual camera, and in
The midpoint coordinates of point Coordinate Adjusting left virtual camera and right virtual camera, and then left and right virtual camera is adjusted according to midpoint coordinates
Position coordinates, to cooperate left virtual camera and the right side virtual in the case where viewing user edge is parallel to display screen and moves left and right
The corresponding adjustment of camera position coordinate, makes it possible to provide the picture most preferably rendered to viewing user, while to left and right virtualphase
The mobile carry out of machine is smooth, brings visual discomfort to user to avoid the mobile jump of virtual camera.
The embodiment of the present invention is determined between left virtual camera and right virtual camera by additional according to apart from adjustment parameter
Target range, and according to centre coordinate and target range, the position coordinates of left virtual camera and right virtual camera are adjusted, to see
See user along be parallel to display screen move left and right when, by the way that the distance between left and right virtual camera is decreased or increased, and then subtract
Parallax between small right and left eye view, there is spinning sensation in viewing naked eye 3D picture when avoiding user mobile.
Example IV
Fig. 4 is the flow chart of one of embodiment of the present invention four viewpoint compensation method.The embodiment of the present invention is above-mentioned each
On the basis of the technical solution of embodiment, a kind of preferred embodiment is provided.
Viewpoint compensation method as shown in Figure 4, comprising:
S410, the left eye coordinates and right eye coordinate that viewing user is obtained at interval of setting time threshold value, and by left eye coordinates
Mean value is taken with right eye coordinate, obtains place between the eyebrows position coordinates.
Specifically, according to formulaObtain place between the eyebrows position coordinates (x', y', z')；Wherein, (xl,yl,
zl) it is left eye coordinates, (xr,yr,zr) it is right eye coordinate.
Optionally, setting time threshold value is 1/60 second.
Between S411, the place between the eyebrows position coordinates for determining current time and the preceding place between the eyebrows position coordinates once obtained first away from
Deviation value.
Specifically, according to formulaDetermine that first distance is poor
Value, wherein (x't,y't,z't) it is the preceding place between the eyebrows position coordinates once obtained, (x't+Δt,y't+Δt,z't+Δt) it is current time
Place between the eyebrows position coordinates, d are first distance difference.
S412, judge whether first distance difference is greater than center adjustment threshold value, if it is, executing S413；If it is not, then
Execute S414.
Optionally, adjustment threshold value in center is the length of the corresponding virtual world of real world 1cm.
S413, using the preceding place between the eyebrows position coordinates once obtained as starting point, the place between the eyebrows position coordinates at current time are made
For terminating point, linear interpolation is carried out according to default interpolation factor, interpolation result is updated into midpoint coordinates.Continue to execute S415.
Specifically, according to formulaMidpoint coordinates is updated to (X, Y, Z).
S414, it keeps centre coordinate constant, continues to execute S415.
S415, when accumulative setting time threshold value is more than preset time, obtain the left eye of the viewing user at current time
The mean value of coordinate and right eye coordinate obtains second position coordinate.
Optionally, preset time is 0.05 second.
S416, the mean value for obtaining preset time corresponding left eye coordinates and right eye coordinate before current time, obtain first
Position coordinates.
S417, second distance difference between first position coordinate and second position coordinate is determined.
Specifically, according to formulaIt determines
Second distance difference；Wherein dist is second distance difference, (xt, yt,zt) it is first position coordinate, (xt+ΔT,yt+ΔT,zt+ΔT)
For second position coordinate, (ax,ay,az) be different directions weighted value.Optionally, (ax,ay,az)=(1,0.01,0.001).
S418, judge whether second distance difference is 0, if it is, executing S419；If it is not, then executing S420.
S419, adjustment parameter of keeping at a distance are constant, return and execute S410.
S420, judge whether second distance difference is not less than crosstalk threshold value, if it is, executing S421；If it is not, then holding
Row S422.
Optionally, crosstalk threshold value is the length of the corresponding virtual world of the mobile 6mm of real world.
S421, it is updated using negative growth factor superposition apart from adjustment parameter, according to the distance difference and crosstalk threshold value, meter
Calculate the view offset amount between different moments watched view；Continue to execute S423.
Optionally, negative growth factor is -0.05.It wherein, is 0.001-1 apart from adjustment parameter.
Specifically, according to formulaDetermine view offset amount, wherein HMD
For view offset amount, thrcFor crosstalk threshold value.
S422, it is updated using positive regulating factor superposition apart from adjustment parameter, sets view offset amount as 0；It continues to execute
S423。
Wherein, in order to enhance user viewing fitness, it is preferable that setting positive regulating factor absolute value be less than negative regulator
Factor absolute value.Optionally, positive regulating factor is+0.01.
S423, according to apart from adjustment parameter and view offset amount, determine viewpoint compensation amount.
Specifically, determining viewpoint compensation amount according to formula VC=(1-sSA) × P × HMD；Wherein, VC is viewpoint benefit
The amount of repaying, sSA are described apart from adjustment parameter, and P is compensation multiple, and HMD is the view offset amount.
Optionally, P is the arbitrary integer in [0,10].
S424, the target view for determining viewing user, and viewpoint compensation amount is superimposed and updates target view, according to target
Viewpoint determines display row's figure.
S425, according to the maximum distance between adjustment parameter and left virtual camera and right virtual camera, product obtains
To target range.
Wherein, the maximum distance between left virtual camera and right virtual camera is equal with interpupillary distance set by user is watched.Its
In, any value of the interpupillary distance between 5.5~7.5cm, by watching user's sets itself.
S426, the left virtual camera of midpoint coordinates left and right adjusting and right virtual camera are surrounded, keeps left virtual camera and the right side virtual
The distance between camera is equal with target range；It jumps and executes S410.
Embodiment five
Fig. 5 is the structure chart of one of embodiment of the present invention five viewpoint compensation device.The embodiment of the present invention is suitable for
The case where watching naked eye 3D display picture, the device is by software and or hardware realization, and concrete configuration is in progress naked eye 3D display
Electronic equipment in.Viewpoint compensation device as shown in Figure 5 includes: first position coordinate obtaining module 510, second position coordinate
Obtain module 520, distance difference determining module 530, view offset amount determining module 540, apart from adjustment parameter update module 550
And viewpoint compensation amount determining module 560.
Wherein, first position coordinate obtaining module 510, the first position that target is tracked for obtaining current time are sat
Mark；
Second position coordinate obtaining module 520, for obtain first delay after the correspondence moment described in be tracked target
Second position coordinate；
Distance difference determining module 530, for determining between the first position coordinate and the second position coordinate
Distance difference；
View offset amount determining module 540, for according to the first position coordinate, the second position coordinate and described
Distance difference determines the view offset amount between different moments watched view；
Apart from adjustment parameter update module 550, for updating apart from adjustment parameter according to the distance difference；Wherein, institute
It states apart from adjustment parameter for determining the distance between left virtual camera and right virtual camera；
Viewpoint compensation amount determining module 560, for, apart from adjustment parameter and the view offset amount, determining view according to described
Point compensation rate, to carry out viewpoint compensation according to the viewpoint compensation amount.
The embodiment of the present invention is obtained worked as respectively by first position coordinate obtaining module and second position coordinate obtaining module
The first position coordinate and second position coordinate of target are tracked at the time of after preceding moment and the first delay；It is true by distance difference
Cover half block determines the distance between first position coordinate and the second position coordinate difference；By view offset amount determining module according to
First position coordinate, second position coordinate and distance difference determine the view offset amount between different moments watched view；
By, according to distance difference, updating the spacing for determining left virtual camera and right virtual camera apart from adjustment parameter update module
The adjustment parameter with a distance from；By viewpoint compensation amount determining module according to apart from adjustment parameter and view offset amount, viewpoint is determined
Compensation rate, to carry out viewpoint compensation according to viewpoint compensation amount.It is reduced by adopting the above technical scheme due to watching naked eye 3D rendering
When tracked object move left and right, caused by right and left eye view the probability that is occurred of crosstalk phenomenon, improve user's
Viewing experience.
Further, when the distance difference is not less than crosstalk threshold value, the view offset amount determining module 540, packet
It includes:
Moving direction determination unit, for the first component and the second position coordinate according to the first position coordinate
The first component size, determine described in be tracked the moving direction of target；
Moving distance determination unit, for being tracked mesh described according to the distance difference and the crosstalk threshold value, determining
Target moving distance；
View offset amount determination unit, for determining that the view is inclined according to the moving direction and the moving distance
Shifting amount.
Further, the moving direction determination unit, comprising:
If the first component in the second position coordinate is less than the first component in the first position coordinate, institute is determined
Stating moving direction is negative direction；
If the first component in the second position coordinate is determined not less than the first component in the first position coordinate
The moving direction is positive direction.
Further, the moving distance determination unit, comprising:
According to formula h md=(2 × dist/thrc)0.5, the moving distance of target is tracked described in determination；
Wherein, hmd is the moving distance, and dist is the distance difference, thrcFor the crosstalk threshold value.
Further, the view offset amount determining module 540, is also used to:
When the distance difference is less than crosstalk threshold value, determine that the view offset amount is 0.
It is further, described apart from adjustment parameter update module 550, comprising:
Negative regulator updating unit, for being updated according to negative growth factor when the distance difference is not less than crosstalk threshold value
It is described apart from adjustment parameter；
Positive regulator updating unit, for the distance difference non-zero and be less than crosstalk threshold value when, according to positive regulating factor
It updates described apart from adjustment parameter；
Zero updating unit, for when the distance difference is zero, then keeping described constant apart from adjustment parameter.
Further, the viewpoint compensation amount determining module 560, comprising:
Viewpoint compensation amount determination unit, for determining the viewpoint compensation according to formula VC=(1-sSA) × P × HMD
Amount；
Wherein, VC is the viewpoint compensation amount, and sSA is described apart from adjustment parameter, and P is compensation multiple, and HMD is the view
Map migration amount.
Further, described device further includes camera midpoint coordinates adjustment module, specifically includes:
The third place coordinate determination unit, for it is described acquisition current time be tracked target first position coordinate it
Afterwards, the third place coordinate of target is tracked described in the correspondence moment after obtaining the second delay；
Midpoint coordinates determination unit is used for according to the first position coordinate and the third place coordinate, according to default
Interpolating function and interpolation factor determine the midpoint coordinates of the left virtual camera Yu the right virtual camera；
Midpoint coordinates adjustment unit, for adjusting the left virtual camera and the right side being virtual according to the midpoint coordinates
The position coordinates of camera；Wherein, second delay is less than first delay.
Further, described device further includes camera distance adjustment module, specifically includes:
Target range determination unit, for being updated after adjustment parameter described according to the distance difference, according to
It is described apart from adjustment parameter, determine the target range between the left virtual camera and the right virtual camera；
Camera distance adjustment unit, for adjusting the left virtualphase according to the midpoint coordinates and the target range
The position coordinates of machine and the right virtual camera.
Further, described device further includes that target view obtains module, is specifically used for:
It is tracked the current view point of target described in determination, and the viewpoint compensation amount is superimposed to the current view point and is obtained
Target view, to determine display row's figure according to the target view.
Viewpoint compensation method provided by any embodiment of the invention can be performed in above-mentioned viewpoint compensation device, has and executes view
The corresponding functional module of point compensation method and beneficial effect.
Embodiment six
Fig. 6 is the hardware structural diagram for a kind of electronic equipment that the embodiment of the present invention six provides, which includes
Display device 610,640 storage device 640 of human eye follow-up mechanism 620, processor 630 and storage device.
Wherein, display device 610, for showing left-eye view and right-eye view according to certain row's figure mode；
Human eye follow-up mechanism 620, for obtaining the first position coordinate that current time is tracked target；It is also used to obtain
The second position coordinate of target is tracked described in the correspondence moment after one delay；
One or more processors 630；
Storage device 640, for storing one or more programs.
In Fig. 6 by taking a processor 630 as an example, the processor 630 in the electronic equipment can pass through bus or its other party
Formula is connected with display device 610, human eye follow-up mechanism 620 and storage device 640, and processor 630 and storage device 640
It is connected by bus or other modes, in Fig. 6 for being connected by bus.
In the present embodiment, the processor 630 in electronic equipment can determine first acquired in human eye follow-up mechanism 620
The distance between position coordinates and the second position coordinate difference；It can also be first according to acquired in human eye follow-up mechanism 620
Set the distance difference that coordinate and second position coordinate and processor 630 itself determine, determine different moments watched view it
Between view offset amount；It can also be updated storage according to distance difference and be used to determine left virtual camera and right void in device 640
Between quasi- camera distance apart from adjustment parameter, can not also determine viewpoint compensation according to apart from adjustment parameter and view offset amount
Amount, to carry out viewpoint compensation according to viewpoint compensation amount.
Storage device 640 in the electronic equipment is used as a kind of computer readable storage medium, can be used for storing one or
Multiple programs, described program can be software program, computer executable program and module, such as viewpoint in the embodiment of the present invention
Corresponding program instruction/the module of compensation method is (for example, attached first position coordinate obtaining module 510 shown in fig. 5, the second position
Coordinate obtaining module 520, distance difference determining module 530, view offset amount determining module 540 update mould apart from adjustment parameter
Block 550 and viewpoint compensation amount determining module 560).The software journey that processor 630 is stored in storage device 640 by operation
Sequence, instruction and module, thereby executing the various function application and data processing of electronic equipment, i.e. the realization above method is implemented
Viewpoint compensation method in example.
Storage device 640 may include storing program area and storage data area, wherein storing program area can store operation system
Application program needed for system, at least one function；It storage data area can the (first position in such as above-described embodiment such as storing data
Coordinate, second position coordinate, distance difference, view offset amount, apart from adjustment parameter and viewpoint compensation amount etc.).In addition, storage
Device 640 may include high-speed random access memory, can also include nonvolatile memory, and a for example, at least disk is deposited
Memory device, flush memory device or other non-volatile solid state memory parts.In some instances, storage device 640 can be wrapped further
The memory remotely located relative to processor 630 is included, these remote memories can pass through network connection to server.It is above-mentioned
The example of network includes but is not limited to internet, intranet, local area network, mobile radio communication and combinations thereof.
In addition, the embodiment of the present invention also provides a kind of computer readable storage medium, it is stored thereon with computer program, it should
Realize that the present invention implements the viewpoint compensation method provided when program is executed by viewpoint compensation device, this method comprises: obtaining current
Moment is tracked the first position coordinate of target；The second position of target is tracked described in the correspondence moment after obtaining the first delay
Coordinate；Determine the distance between the first position coordinate and the second position coordinate difference；It is sat according to the first position
Mark, the second position coordinate and the distance difference, determine the view offset amount between different moments watched view；According to
The distance difference is updated apart from adjustment parameter；Wherein, described to be used to determine that left virtual camera and the right side are virtual apart from adjustment parameter
The distance between camera；According to described apart from adjustment parameter and the view offset amount, viewpoint compensation amount is determined, according to
Viewpoint compensation amount carries out viewpoint compensation.
By the description above with respect to embodiment, it is apparent to those skilled in the art that, the present invention
It can be realized by software and required common hardware, naturally it is also possible to which by hardware realization, but in many cases, the former is more
Good embodiment.Based on this understanding, technical solution of the present invention substantially in other words contributes to the prior art
Part can be embodied in the form of software products, which can store in computer readable storage medium
In, floppy disk, read-only memory (Read-Only Memory, ROM), random access memory (Random such as computer
Access Memory, RAM), flash memory (FLASH), hard disk or CD etc., including some instructions are with so that a computer is set
Standby (can be personal computer, server or the network equipment etc.) executes viewpoint compensation described in each embodiment of the present invention
Method.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (13)
1. a kind of viewpoint compensation method characterized by comprising
Acquisition current time is tracked the first position coordinate of target；
The second position coordinate of target is tracked described in the correspondence moment after obtaining the first delay；
Determine the distance between the first position coordinate and the second position coordinate difference；
According to the first position coordinate, the second position coordinate and the distance difference, determine that different moments watch view
View offset amount between figure；
According to the distance difference, update apart from adjustment parameter；Wherein, described to be used to determine left virtual camera apart from adjustment parameter
The distance between right virtual camera；
Viewpoint compensation amount is determined apart from adjustment parameter and the view offset amount according to described, according to the viewpoint compensation amount
Carry out viewpoint compensation.
2. the method according to claim 1, wherein the distance difference be not less than crosstalk threshold value when, according to
The first position coordinate, the second position coordinate and the distance difference, determine between different moments watched view
View offset amount, comprising:
According to the size of the first component of the first position coordinate and the first component of the second position coordinate, determine described in
It is tracked the moving direction of target；
According to the distance difference and the crosstalk threshold value, the moving distance of target is tracked described in determination；
According to the moving direction and the moving distance, the view offset amount is determined.
3. according to the method described in claim 2, it is characterized in that, being sat according to the first position coordinate and the second position
The size of first component in mark, determine described in be tracked the moving direction of target, comprising:
If the first component in the second position coordinate is less than the first component in the first position coordinate, the shifting is determined
Dynamic direction is negative direction；
If described in the first component in the second position coordinate not less than the first component in the first position coordinate, determines
Moving direction is positive direction.
4. according to the method described in claim 2, it is characterized in that, being determined according to the distance difference and the crosstalk threshold value
The moving distance for being tracked target, comprising:
According to formula h md=(2 × dist/thrc)0.5, the moving distance of target is tracked described in determination；
Wherein, hmd is the moving distance, and dist is the distance difference, thrcFor the crosstalk threshold value.
5. the method according to claim 1, wherein determining institute when the distance difference is less than crosstalk threshold value
Stating view offset amount is 0.
6. update distance adjusts ginseng the method according to claim 1, wherein described according to the distance difference
Number, comprising:
If the distance difference is not less than crosstalk threshold value, updated according to negative growth factor described apart from adjustment parameter；
If the distance difference non-zero and be less than crosstalk threshold value, according to positive regulating factor update it is described apart from adjustment parameter；
If the distance difference is zero, keep described constant apart from adjustment parameter.
7. the method according to claim 1, wherein described inclined apart from adjustment parameter and the view according to described
Shifting amount determines viewpoint compensation amount, comprising:
According to formula VC=(1-sSA) × P × HMD, the viewpoint compensation amount is determined；
Wherein, VC is the viewpoint compensation amount, and sSA is described apart from adjustment parameter, and P is compensation multiple, and HMD is that the view is inclined
Shifting amount.
8. method according to claim 1-7, which is characterized in that be tracked target at the acquisition current time
First position coordinate after, further includes:
The third place coordinate of target is tracked described in the correspondence moment after obtaining the second delay；
Institute is determined according to default interpolating function and interpolation factor according to the first position coordinate and the third place coordinate
State the midpoint coordinates of left virtual camera Yu the right virtual camera；
According to the midpoint coordinates, the position coordinates of the left virtual camera and the right virtual camera are adjusted；
Wherein, second delay is less than first delay.
9. according to the method described in claim 8, it is characterized in that, updating distance according to the distance difference described and adjusting
After parameter, further includes:
According to described apart from adjustment parameter, the target range between the left virtual camera and the right virtual camera is determined；
According to the midpoint coordinates and the target range, the position for adjusting the left virtual camera and the right virtual camera is sat
Mark.
10. the method according to claim 1, wherein it is described according to the viewpoint compensation amount carry out viewpoint compensation,
Include:
It is tracked the current view point of target described in determination, and the viewpoint compensation amount is superimposed to the current view point and obtains target
Viewpoint, to determine display row's figure according to the target view.
11. a kind of viewpoint compensation device characterized by comprising
First position coordinate obtaining module, for obtaining the first position coordinate that current time is tracked target；
Second position coordinate obtaining module is tracked the second position of target described in the correspondence moment after the first delay for obtaining
Coordinate；
Distance difference determining module, for determining that the distance between the first position coordinate and the second position coordinate are poor
Value；
View offset amount determining module, for according to the first position coordinate, the second position coordinate and the range difference
Value, determines the view offset amount between different moments watched view；
Apart from adjustment parameter update module, for updating apart from adjustment parameter according to the distance difference；Wherein, the distance
Adjustment parameter is for determining the distance between left virtual camera and right virtual camera；
Viewpoint compensation amount determining module, for, apart from adjustment parameter and the view offset amount, determining viewpoint compensation according to described
Amount, to carry out viewpoint compensation according to the viewpoint compensation amount.
12. a kind of electronic equipment, including human eye follow-up mechanism and display device, which is characterized in that further include:
One or more processors；
Storage device, for storing one or more programs；
One or more of programs are executed by one or more of processors, so that one or more of processors are realized
Such as a kind of viewpoint compensation method of any of claims 1-10.
13. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
A kind of such as viewpoint compensation method of any of claims 1-10 is realized when execution.
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