CN108734791A - The treating method and apparatus of panoramic video - Google Patents
The treating method and apparatus of panoramic video Download PDFInfo
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- CN108734791A CN108734791A CN201810276791.9A CN201810276791A CN108734791A CN 108734791 A CN108734791 A CN 108734791A CN 201810276791 A CN201810276791 A CN 201810276791A CN 108734791 A CN108734791 A CN 108734791A
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Abstract
The present invention provides a kind for the treatment of method and apparatus of panoramic video, this method includes：Receive multimedia element；Determine the first positioning that multimedia element is corresponded in panorama ball surface, wherein the panorama ball inner surface rendering has rectangle panoramic video figure；It determines and positions the distance D translated to the centre of sphere direction of the panorama ball by first；According to first positioning and the distance D, the target positioning of multimedia element described in the inner space of panorama ball is determined；Multimedia element is added at the target positioning, wherein, the visible surface of the multimedia element has the datum mark chosen in advance, and the datum mark is positioned with the target to overlap and line that the centre of sphere and the target position and the visible surface are perpendicular.The present invention can be such that the shift in position serious forgiveness of multimedia element is improved, and can carry out flexible dynamic configuration by the two-dimensional coordinate information and multimedia element etc. received to multimedia element, do not limited by the hair version period.
Description
Technical field
The present invention relates to panoramic video technical fields, more particularly to a kind for the treatment of method and apparatus of panoramic video.
Background technology
At this stage, it when adding multimedia element into panorama application or panoramic video, mainly comprises the following steps：First pass around instruction
Experienced operating personnel operate Unity engines, are selected manually multimedia element to be added in the panorama ball of Unity engines empty
Between position, and multimedia element is added at the additional space position in panorama ball manually, to obtain multimedia element
Location parameter；Then, then by technical staff using these complicated location parameters write add the code of the multimedia element into
Row client is realized；Finally, client hair version is presented to the user.Wherein, the panoramic video in the client being presented to the user
In some spatial position in be added with multimedia element.Wherein, it should be noted that here only by taking Unity engines as an example into
Row illustrates that in practical application, the engine of panorama ball is not limited to this.
In this scheme, multimedia element is added in panoramic video every time and is required for waiting for a hair version period, i.e. example
As 1.0 versions that the t1 times are issued client in some spatial position be added to some multimedia element；When backstage is wanted
When adding multimedia element again to the client, or modifying to the multimedia element added, one can only be waited for
After sending out version cycle T in the past, the t2 times are reached, it just can be by way of issuing the client of new version 2.0, in 2.0 versions
Client in add or modification multimedia element.So that the addition period of multimedia element depends on the edition upgrading of client
It is period, poor for the movable tenability of provisional operation.
In addition, in this scheme, since multimedia element is to be added to panorama ball manually by operating personnel in engine side
In some spatial position be easy to make the point of addition of multimedia element not and since the error added manually is big, precision is low
It meets the expected requirements, shift in position serious forgiveness is relatively low；In addition, since the addition of multimedia element, modification period depend on client
The edition upgrading period at end, then before not reaching update time, position, pattern of the multimedia element added etc. are all
It cannot change, to which the requirement of dynamic configuration multimedia element can not be adapted to.
It can be seen that in the prior art when configuring multimedia element into panoramic video, in the prevalence of configuration opportunity
Be limited to client hair the version period, multimedia element shift in position serious forgiveness and can not dynamically add asking for multimedia element
Topic.
Invention content
The present invention provides a kind for the treatment of method and apparatus of panoramic video, to solve in the prior art to panoramic video
Existing setup time is limited to the client hair version time when middle configuration multimedia element, the shift in position of multimedia element is held
Error rate and the problem of can not dynamically add multimedia element.
To solve the above-mentioned problems, according to an aspect of the present invention, the invention discloses a kind of processing of panoramic video
Method, including：
Receive multimedia element；
Determine the first positioning that the multimedia element is corresponded in panorama ball surface, wherein the panorama ball inner surface wash with watercolours
It is infected with rectangle panoramic video figure；
It determines and positions the distance D translated to the centre of sphere direction of the panorama ball by described first；
According to first positioning and the distance D, multimedia element described in the inner space of the panorama ball is determined
Target positioning；
The multimedia element is added at the target positioning, wherein the visible surface of the multimedia element has
The datum mark chosen in advance, the datum mark overlaps with target positioning and the company of the centre of sphere and target positioning
Line and the visible surface are perpendicular.
Optionally, the first positioning of the multimedia element is corresponded in the determining panorama ball surface, including：
Receive the two-dimensional coordinate information of the rectangle panoramic video figure；
Receive the second positioning that the multimedia element is corresponded in rectangle panoramic video figure；
According to the coordinate information of preset plane coordinates and the mapping relations and the rectangle panoramic video figure of spherical coordinate,
The rectangle panoramic video figure is rendered into panorama ball inner surface；
According to the mapping relations, determine that described second is located in corresponding first positioning in the panorama ball surface.
Optionally, the determination positions the distance D translated to the centre of sphere direction of the panorama ball by described first, packet
It includes：
According to the radius of a ball R of the dimension information of the multimedia element and the panorama ball, determination is positioned described first
The distance D translated to the centre of sphere direction of the panorama ball.
Optionally, the radius of a ball R of the dimension information and the panorama ball according to the multimedia element is determined institute
The distance D that the first positioning is translated to the centre of sphere direction of the panorama ball is stated, including：
According to the dimension information of the multimedia element, the datum mark on the visible surface of the multimedia element is determined；
Calculate the maximum distance L of the datum mark and each marginal point on the visible surface；
According to the maximum distance L and the radius of a ball R, the centre of sphere side positioned described first to the panorama ball is calculated
To the distance D translated.
Optionally, the dimension information according to the multimedia element, on the visible surface for determining the multimedia element
Datum mark, including：
The geometric center of the visible surface of the multimedia element is determined according to the dimension information of the multimedia element；
The geometric center is determined as the datum mark on the visible surface.
Optionally, described according to the maximum distance L and the radius of a ball R, it calculates and is positioned described first to described complete
Before the distance D that the centre of sphere direction of scape ball is translated, the method further includes：
According to the dimension information of the dimension information and the multimedia element of the panorama ball, the multimedia element is calculated
Scaling M；
Described to calculate the datum mark with after the maximum distance L of each marginal point on the visible surface, the method is also
Including：
The maximum distance L is reduced according to the scaling M, obtains scaling distance M*L；
The multimedia element is reduced according to the scaling M, obtains scaling multimedia element；
It is described according to the maximum distance L and the radius of a ball R, calculate the ball positioned described first to the panorama ball
The distance D that heart direction is translated, including：
According to the scaling distance M*L and the radius of a ball R, the centre of sphere positioned described first to the panorama ball is calculated
The distance D that direction is translated；
It is described that the multimedia element is added at the target positioning, including：
The scaling multimedia element is added at the target positioning.
Optionally, described according to the maximum distance L and the radius of a ball R, it calculates and is positioned described first to described complete
The distance D that the centre of sphere direction of scape ball is translated, including：
According to another aspect of the present invention, the invention also discloses a kind of processing units of panoramic video, including：
Receiving module, for receiving multimedia element；
First determining module, for determining the first positioning for corresponding to the multimedia element in panorama ball surface, wherein institute
Stating the rendering of panorama ball inner surface has rectangle panoramic video figure；
Second determining module, for determine described first is positioned translated to the centre of sphere direction of the panorama ball away from
From D；
Third determining module, for according to first positioning and the distance D, determining the inner space of the panorama ball
Described in multimedia element target positioning；
Add module, for the multimedia element to be added at the target positioning, wherein the multimedia element
Visible surface there is the datum mark chosen in advance, the datum mark positioned with the target overlap and the centre of sphere with it is described
The line and the visible surface of target positioning are perpendicular.
Optionally, first determining module includes：
First receiving submodule, the two-dimensional coordinate information for receiving the rectangle panoramic video figure；
Second receiving submodule, for receiving the second positioning for corresponding to the multimedia element in rectangle panoramic video figure；
Submodule is rendered, for the mapping relations and the rectangle aphorama according to preset plane coordinates and spherical coordinate
The rectangle panoramic video figure is rendered to panorama ball inner surface by the coordinate information of frequency figure；
First determination sub-module, for according to the mapping relations, determining that described second is located in the panorama ball surface
Upper corresponding first positioning.
Optionally, second determining module includes：
Second determination sub-module is used for the radius of a ball R of the dimension information and the panorama ball according to the multimedia element,
It determines and positions the distance D translated to the centre of sphere direction of the panorama ball by described first.
Optionally, second determination sub-module includes：
Determination unit determines the visible surface of the multimedia element for the dimension information according to the multimedia element
On datum mark；
First computing unit, the maximum distance L for calculating the datum mark and each marginal point on the visible surface；
Second computing unit, for according to the maximum distance L and the radius of a ball R, calculate by described first position to
The distance D that the centre of sphere direction of the panorama ball is translated.
Optionally, the determination unit includes：
First determination subelement, for according to the dimension information of the multimedia element determine the multimedia element can
Depending on the geometric center in face；
Second determination subelement, the datum mark for being determined as the geometric center on the visible surface.
Optionally, described device further includes：
Computing module is used for the dimension information of the dimension information and the multimedia element according to the panorama ball, calculates
The scaling M of the multimedia element；
First reduces module, for being reduced to the maximum distance L according to the scaling M, obtain scaling away from
From M*L；
Second reduces module, and for being reduced to the multimedia element according to the scaling M, it is more to obtain scaling
Media elements；
Second computing unit includes：
Computation subunit, for according to the scaling distance M*L and the radius of a ball R, calculating by described first position to
The distance D that the centre of sphere direction of the panorama ball is translated；
The add module includes：
Submodule is added, for the scaling multimedia element to be added at the target positioning.
Optionally, second computing unit is used to calculate distance D according to following formula：
Compared with prior art, the present invention includes following advantages：
In this way, the embodiment of the present invention only needs to receive the two-dimensional coordinate information of each pixel in rectangle panoramic video figure,
And some two-dimensional coordinate for adding multimedia element selected from rectangle panoramic video figure, so that it may with according to preset
Two-dimensional rectangle panoramic video figure is accurately rendered into the interior table of panorama ball by the mapping relations of plane coordinates and spherical coordinate
Face, and uniquely determine some two-dimensional coordinate corresponding three-dimensional coordinate in the panorama ball, i.e., after rendering panoramic video figure
Panorama ball surface on uniquely determine three-dimensional coordinate position for adding multimedia element.The side of the embodiment of the present invention
Method receives the two-dimensional coordinate information and panorama for adding multimedia element in panoramic video two-dimensional development figure at any time
The two-dimensional coordinate information of video two-dimensional development figure, to accurately determine in the panoramic video two-dimensional development figure in panorama ball at any time
In it is corresponding for adding the three-dimensional coordinate information of multimedia element so that the shift in position serious forgiveness of multimedia element is carried
It is high；And multimedia element progress flexibly can dynamically be matched by the two-dimensional coordinate information and multimedia element etc. received
It sets, is not limited by the hair version period.
Description of the drawings
Fig. 1 is a kind of step flow chart of the processing method embodiment of panoramic video of the present invention；
Fig. 2 is a kind of panoramic video figure coordinate transition diagram of the present invention；
Fig. 3 is a kind of schematic diagram of multimedia element of the present invention；
Fig. 4 is a kind of schematic diagram of the computational methods of the target positioning of multimedia element of the present invention；
Fig. 5 is a kind of structure diagram of the processing unit embodiment of panoramic video of the present invention.
Specific implementation mode
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
Referring to Fig.1, a kind of step flow chart of the processing method embodiment of panoramic video of the present invention, this method are shown
Client is can be applied to, following steps are can specifically include：
Step 101, multimedia element is received；
Wherein, the type of multimedia element may include video, image, model, word or barrage；Wherein, video can be with
Including but not limited to PIP video, plot video etc.；Image can include but is not limited to prompt figure in poster picture, scene
Piece, commodity picture etc.；Model can include but is not limited to be added to the computerized image 3D models in scene；Word includes but unlimited
Prompt text, buyer's guide word in subtitle, scene etc.；Barrage is comment of the user in interaction, including but not limited to
Word barrage.
As described above, multimedia element can be a patch (i.e. 2D), such as video, image, word and barrage, also may be used
To be a convex polyhedron (i.e. 3D), such as above-mentioned 3D models.
Wherein, no matter client has sent out version and also or do not sent out version, and or current time whether reach the hair of client
Version time point, in the present invention, point at any time, the only a certain frame panoramic video figure of the panoramic video in need to client
Multimedia element is configured, server only needs to input multimedia element to be added to client, without in Unity engines
Panorama ball in by manually carrying out the manual arrangement point of addition of multimedia element, in this way, client can receive needs
The multimedia element being added in a certain frame panoramic video figure of panoramic video.
Certainly, identical if necessary to the similar and different position addition of the multiframe panoramic video figure to some panoramic video
Multimedia element, realization principle of the invention is constant, i.e., corresponding to multimedia element is a frame panoramic video figure or multiframe
Panoramic video figure or the same panoramic video, or it is different panoramic video, no any limit is realized to the solution of the present invention
System.
Wherein, the different location of different panoramic videos can add identical or different multimedia element, of the invention
Scheme is not intended to limit this.
Step 102, the first positioning that the multimedia element is corresponded in panorama ball surface is determined, wherein the panorama ball
Inner surface rendering has rectangle panoramic video figure；
Wherein, the panorama ball in the present embodiment is hollow structure, and first is located in table in panorama outer surface of ball and panorama ball
The position in face is consistent, wherein ball wall thickness can be ignored, and therefore, the first positioning can be understood as in panorama ball
The position of multimedia element is corresponded on surface/outer surface.And since the rendering of panorama ball inner surface has rectangle panoramic video figure, because
This, the first positioning essence here is to need to add the position of above-mentioned multimedia element in rectangle panoramic video figure on panorama ball
It sets.
Here understand technical scheme of the present invention for the ease of reader, now briefly introduce the playing principles of panoramic video：
Currently, the 2D videos that user sees are played by current rectangle player, and works as and need to regard the 2D
When frequency is converted into panoramic video and is watched, since video flowing is made of multi-frame video figure, rectangle can be played
Each frame video figure that device plays is rendered into the inner surface of panorama ball.And the sphere center position of panorama ball is provided with camera, this is taken the photograph
As the connection of the visual device of head and user, i.e. the eyes of user are equivalent to the sphere center position that the camera is in, so as to see
To each frame video figure of panorama ball internal render, achieve the effect that see panoramic video.Wherein, it should be noted that when from
When the video figure that rectangle player renders to panorama ball is the normal rectangular frame without any stretching that we are just being commonly seen,
The video figure for then rendering to panorama ball can have that image is deformed.Therefore, the present invention is rendered from rectangle player
Video figure to panorama ball inner surface is rectangle panoramic video figure, so-called rectangle panoramic video figure plays dedicated for panorama
Video figure, video figure the problem of there is no image crimps when panorama ball inner surface is shown.
Wherein, which can be the camera in the engine (such as Unity engines) where panorama ball.
Wherein, when adding multimedia element to the rectangle panoramic video figure, first can be determined in the following manner
Positioning.Mode 1 is precalculated in the rectangle panoramic video figure rendered in panorama ball surface by server and corresponds to the multimedia
Then first positioning is handed down to client by the first positioning of element；Mode 2, the more matchmakers issued according to server by client
Second positioning of the element of volume in the rectangle panoramic video figure of rectangle player, to determine that the multimedia element is being rendered into panorama
The first positioning in rectangle panoramic video figure after ball inner surface.
Wherein, which determines
Position；
And second be positioned as be located at plane on rectangle panoramic video figure in the point two-dimensional localization.
In one embodiment, it illustrates here and corresponds to the multimedia element in the determination panorama ball surface of a under type 2
First positioning specific implementation process：
Receive the two-dimensional coordinate information of the rectangle panoramic video figure；
Receive the second positioning that the multimedia element is corresponded in rectangle panoramic video figure；
Wherein, above-mentioned two group information is received from server, and the present invention is for the reception sequence between above-mentioned two group information
It does not limit, in addition, the present invention does not also limit two group information and the reception sequence of the multimedia element in step 101.
Here with ratio for 2:It is illustrated for 1 rectangle panoramic video figure, as shown in the left figure in Fig. 2, works as needs
When adding multimedia element to the panoramic video of client, server side can be in two-dimensional development figure (the i.e. square of panoramic video figure
Shape panoramic video figure) on calibration need add multimedia element position, i.e., second positioning.Specifically, can be with standard 2:1
Panoramic video expanded view as basic coordinates draw scheme, using central point as (0,0) origin, and to shown in the left figure in Fig. 2
Entire panoramic video figure the coordinate value of each pixel is demarcated on two-dimensional development figure.And one seat of selection on two dimension exhibition figure
Punctuate (x, y), i.e., the second positioning, for adding multimedia element.
It then, will be more for adding in the coordinate information of the two-dimensional development figure of the panoramic video figure and the two-dimensional development figure
Second positioning of media elements is sent to client.
Wherein, it should be noted that how the present invention to the two-dimensional development figure of panoramic video figure for establish flat square
Coordinate system does not limit, for example, in other embodiments, can be established for (0,0) origin with any position in two-dimensional development figure
Coordinate system, and the central point for being not limited to two-dimensional development figure is origin.
According to the coordinate information of preset plane coordinates and the mapping relations and the rectangle panoramic video figure of spherical coordinate,
The rectangle panoramic video figure is rendered into panorama ball inner surface；
According to the mapping relations, determine that described second is located in corresponding first positioning in the panorama ball surface.
Wherein, the embodiment of the present invention can in advance client-side configure this 2:The flat square of 1 two-dimensional development figure is sat
Mapping relations between the three-dimensional coordinate for the panorama ball that mark and the present embodiment use.Wherein, the mapping relations and two-dimensional development figure
Dimension scale it is related to the dimension scale of panorama ball, in practical applications, can be according to the difference of above-mentioned two dimension scale
The mapping relations to be adjusted flexibly.
In this way, as shown in Fig. 2, the two-dimensional development figure in Fig. 2 left figures can be rendered into the panorama ball of right figure in Fig. 2
On.In this step, it can be demarcated according to the mapping relations of the preset plane coordinates and spherical coordinate and on two-dimensional development figure
Each pixel coordinate value, which is rendered into panorama ball inner surface so that each picture in two-dimensional development figure
The coordinate value of element, has a unique D coordinates value to be corresponding to it in panorama ball surface.
Correspondingly, two-dimensional development figure of the calibration for adding multimedia element can also be determined according to the mapping relations
In some two-dimensional coordinate (x, y), i.e., second positioning, the corresponding three-dimensional localization in the panorama ball surface, i.e., first positioning
(x’,y’,z’)。
In this way, the embodiment of the present invention only needs to receive the two-dimensional coordinate information of each pixel in rectangle panoramic video figure,
And some two-dimensional coordinate for adding multimedia element selected from rectangle panoramic video figure, so that it may with according to preset
Two-dimensional rectangle panoramic video figure is accurately rendered into the interior table of panorama ball by the mapping relations of plane coordinates and spherical coordinate
Face, and uniquely determine some two-dimensional coordinate corresponding three-dimensional coordinate in the panorama ball, i.e., after rendering panoramic video figure
Panorama ball surface on uniquely determine three-dimensional coordinate position for adding multimedia element.The side of the embodiment of the present invention
Method receives the two-dimensional coordinate information and panorama for adding multimedia element in panoramic video two-dimensional development figure at any time
The two-dimensional coordinate information of video two-dimensional development figure, to accurately determine in the panoramic video two-dimensional development figure in panorama ball at any time
In it is corresponding for adding the three-dimensional coordinate information of multimedia element so that the shift in position serious forgiveness of multimedia element is carried
It is high；And multimedia element progress flexibly can dynamically be matched by the two-dimensional coordinate information and multimedia element etc. received
It sets, is not limited by the hair version period.
Step 103, it determines and positions the distance D translated to the centre of sphere direction of the panorama ball by described first；
Wherein, since multimedia element is patch or convex polyhedron, if the multimedia element is only attached to this
At first anchor point (in the ball surface of panorama ball), as shown in figure 4, by multimedia element 11 be attached to the first positioning C1 (x ',
Y ', z ') at, then multimedia element 11 can be made to have just sticked to the outer surface of panorama ball, and can not make panorama ball sphere center position M's
Camera collects multimedia element 11 so that human eye can not see more matchmakers in the panoramic video rendered on panorama ball inner surface
Element of volume 11.So in order to by multimedia element 11 can camera-shot arrive, needing will be corresponding to multimedia element 11
First positioning C1 (x ', y ', z ') is to moving inside panorama ball.Specifically, as shown in figure 4, here just it needs to be determined that by first
Position the distance that C1 (x ', y ', z ') is translated to the directions centre of sphere M (arrow direction i.e. as shown in Figure 4) of the panorama ball
D, wherein present position such as Fig. 4 institutes of the multimedia element 11 ' of corresponding the first positioning C1 (x ', y ', z ') for moving distance D
Show.
In one embodiment, step 103 can be realized by S31.S31, according to the size of the multimedia element
The radius of a ball R of information and the panorama ball translates to determine to position described first to the centre of sphere direction of the panorama ball
Distance D.
In one embodiment, it when executing S31, can be accomplished by the following way：
S311 determines the benchmark on the visible surface of the multimedia element according to the dimension information of the multimedia element
Point；
Wherein, since multimedia element can be the patch of 2D, it can also be the convex polyhedron of 3D.
When multimedia element is the patch of 2D, such as a picture, then the picture side of the picture is visible surface；When more
When media elements are the convex polyhedron of 3D, wherein a face browsed for user can be selected from multiple faces of convex polyhedron,
That is visible surface, certainly, in other embodiments, when multimedia element is 3D shapes, visible surface can be multiple.
What is so browsed for user due to multimedia element is a visible surface, and above-mentioned is determined in panorama ball surface
The first positioning for adding multimedia element is a point, so needing exist for selecting in the visible surface of multimedia element
One datum mark, for being aligned with the first of panorama ball surface the positioning.
Wherein, it when selecting the datum mark, can be selected based on the dimension information of the multimedia element.
The multimedia element of 2D patch forms as shown in Figure 3, wherein dash area is the visible surface of patch, is being selected
When datum mark, any one point can be chosen in dash area according to user instruction and be used as datum mark, it can also be according to system
Point on the basis of geometric center of the configuration to select the dash area.
Wherein, in one embodiment, it when executing S311, can be accomplished by the following way：
The geometric center of the visible surface of the multimedia element is determined according to the dimension information of the multimedia element；
The geometric center is determined as the datum mark on the visible surface.
Wherein, as shown in figure 3, what the geometric center N of the patch shown in shade can be determined as to the multimedia element can
Depending on the datum mark on face.
In this way, the embodiment of the present invention is by being used as the geometric center of the visible surface of multimedia element for being directed at panorama ball
The datum mark of first positioning on surface is used as datum mark compared to other points chosen on the visible surface, can subsequently calculate
When advance distance D so that maximum distance L smallers, first positions the distance D promoted to the inside of panorama ball also smallers, so that
When multimedia element is finally added to the target positioning subsequently mentioned, the multimedia element and panorama of the addition that user perspective is seen
The degrees of fusion higher of the panoramic video of ball inner surface promotes video viewing experience, avoids the use caused by the distance D biggers promoted
See the problem of multimedia element mutually disconnects with panoramic video in family visual angle.
S312 calculates the maximum distance L of the datum mark and each marginal point on the visible surface；
Wherein, it as shown in figure 3, in order to fast and accurately calculate maximum distance L, can pasted by the center of circle of geometric center N
Circle is drawn on the outside of piece (shadow region), and constantly reduces round radius, until first point and the drawn circle of patch coincide, is pasted
The radius of the distance between the point (being here K, B) of on piece and geometric center N, i.e., current drawn circle is exactly datum mark N
With the maximum distance L of each marginal point on the visible surface.
In other embodiments, the A points if datum mark is not above-mentioned geometric center N, but in Fig. 3, then maximum distance L
It is here L ' for the distance between point A to point B, then Fig. 4 is seen again, in order to which the visible surface of patch is all moved to panorama ball
Inside, the distance D that larger L ' can be such that patch is moved to centre of sphere direction is excessive, sees multimedia element to user perspective occur
The problem of mutually disconnecting with panoramic video.
S313, according to the maximum distance L and the radius of a ball R, calculating is positioned described first to the panorama ball
The distance D that centre of sphere direction is translated.
Wherein, in one embodiment, as shown in figure 4, distance D can be calculated by following formula (1)：
In this way, the embodiment of the present invention in order to make multimedia element visible surface be panorama ball sphere center position user
Visual angle is seen, can calculate it to ball to the first accurate positioning positioned at the surface of panorama ball of corresponding multimedia element
The accurate displacement distance in heart direction, so as to accurately calculate the first positioning after corresponding displacement, the i.e. standard of target positioning
True position, target positioning can be such that the visible surface of multimedia element is completely seen by user perspective inside panorama ball.This
In target positioning be the first positioning of dimension information based on multimedia element and corresponding multimedia element and uniquely determine,
It avoids when multimedia element to be directly added to the spatial position in panorama ball manually in the prior art, due to what is added manually
Error is big, precision is low, and the point of addition of caused multimedia element does not meet expected requirement, and shift in position serious forgiveness is relatively low
The problem of, method of the invention can put down the target positioning of the multimedia element by calculating automatically, be placed to improve
The shift in position serious forgiveness of multimedia element.
Step 104, it according to first positioning and the distance D, determines more described in the inner space of the panorama ball
The target of media elements positions；
Wherein, as shown in figure 4, positioning C1 (x ', y ', z ') to the directions centre of sphere M translation distance D by first, it is fixed to reach target
Position C.
Step 105, the multimedia element is added at the target positioning, wherein the visible surface of multimedia element
It overlaps with target positioning C with the datum mark N, the datum mark N chosen in advance and the centre of sphere and the target is fixed
The line and the visible surface of position are perpendicular.
Wherein, as shown in Figure 3 and Figure 4, default multimedia element is perpendicular to user's sight, i.e. datum mark N and panorama
The centre of sphere M lines of ball need the visible surface (visible surface of patch) perpendicular to addition multimedia element.So should theoretically it incite somebody to action
The datum mark N of multimedia element 11 navigates to the first positioning C1 (x ', y ', z ') of panorama ball surface, then determines multimedia substantially
The position of element 11；But in practical applications, due to the particularity of panorama ball, the broadcasting for panoramic video is equivalent to use
Family eyes be in the positions centre of sphere M of panorama ball, so, the rectangle panoramic video figure inner surface that rectangle player is played is arrived
Panorama ball surface, that is to say, that user can only see the content inside panorama ball, and panorama ball exterior content is invisible.So, it presses
Visible surface and panorama ball according to the multimedia element of above-mentioned positioning method dynamic addition should be circumscribed relationships, and more matchmakers are being determined
After the inset of element of volume is from D, so that it may with to ensure that the visible surface of the multimedia element 11 ' of addition is all placed in panorama ball
Portion.The interior of original corresponding first positioning of multimedia element 11 can be calculated by the geometry formula of basic formula (1)
Distance D is moved, thereby may be ensured that each point on the visible surface of multimedia element enters inside panorama ball, can be seen by user
It arrives.
By means of the technical solution of the above embodiment of the present invention, the present invention by receive at any time multimedia element and it is automatic really
Target positioning of the fixed multimedia element inside panorama ball, so that when configuring the configuration of multimedia element to panoramic video
Machine is not sent out the version period by client, improves the movable tenability of provisional operation；And it can be existed according to multimedia element
First positioning of panorama ball surface and this first position distance translate to centre of sphere direction, come it is accurate calculate can put down it is more
The target of media elements positions, i.e., the location information of multimedia element can be put down by precomputing, then carry out multimedia
The configuration of element avoids the shift in position for configuring the multimedia element caused by multimedia element directly in panorama ball manually
The low problem of serious forgiveness, improves shift in position serious forgiveness；Also, the present invention by receiving multimedia element and determination at any time
Its target positioning in panorama ball, so as to carry out dynamic configuration to multimedia element, and exists at any time according to actual conditions
Line adjusts the target positioning of multimedia element.
When needing to adjust the target positioning for having added multimedia element, it is only necessary to receive multimedia element again in two dimension
Rectangle panoramic video figure in second positioning；Or multimedia element corresponding first positioning on panorama ball is received again,
The positioning of the target in panoramic video figure of the multimedia element that has been added in the panoramic video of panorama ball can be carried out at any time
Adjustment.
And it is possible to by receive at any time the first location information of multimedia element to be added and multimedia element/
Or second location information, so that it may to realize that the upper dynamic configuration of target positioning in the panorama ball of internal render panoramic video is more
Media elements can adapt to the requirement of dynamic configuration multimedia element.
Wherein, in the above-described embodiments, it is illustrated so that multimedia element is 2D patches as an example, when multimedia element is
When 3D models, such as when the convex polyhedron of 3D, when its visible surface is one, then method is similar with above-mentioned 2D patches, here not
It repeats again.
And when the visible surface of the convex polyhedron of 3D is multiple, i.e. user needs to see the multimedia element of 3D effect, that
Each visible surface that the multimedia element can be directed to carries out the processing of said program, also, for simulating stereo effect,
The camera installed at the sphere center position of panorama ball can be then 2, simulate the left eye and right eye of people respectively, in this way, when using
When family receives the image data of 2 cameras acquisition by wearable device, so that it may to see the effect of the multimedia element of 3D.
Optionally, in one embodiment,
Before executing S31, method according to embodiments of the present invention can also include：
According to the dimension information of the dimension information and the multimedia element of the panorama ball, the multimedia element is calculated
Scaling M.
Wherein, the technical method for calculating scaling M is known technology, and which is not described herein again.
Correspondingly, after S312, method according to embodiments of the present invention can also include：
The maximum distance L is reduced according to the scaling M, obtains scaling distance M*L；
The multimedia element is reduced according to the scaling M, obtains scaling multimedia element；
Correspondingly, when executing S313, then according to the scaling distance M*L and the radius of a ball R, calculate described first
Position the distance D translated to the centre of sphere direction of the panorama ball；
That is,
Correspondingly, when executing step 105, then the scaling multimedia element is added at the target positioning.
In this way, when the size of the size of multimedia element and panorama ball not in one dimension when, can be by by more matchmakers
When the size scaling of element of volume is consistent as the size of panorama ball, then by multimedia element be added to panorama ball target position
Place, in the size for facing multimedia element and the size disunity of panorama ball, be uniformly processed in time, in turn
Realize the accurate dynamic configuration to multimedia element.
It should be noted that for embodiment of the method, for simple description, therefore it is all expressed as a series of action group
It closes, but those skilled in the art should understand that, the embodiment of the present invention is not limited by the described action sequence, because according to
According to the embodiment of the present invention, certain steps can be performed in other orders or simultaneously.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, and the involved action not necessarily present invention is implemented
Necessary to example.
It is corresponding with the method that the embodiments of the present invention are provided, with reference to Fig. 5, show a kind of panorama of the present invention
The structure diagram of the processing unit embodiment of video, can specifically include following module：
Receiving module 51, for receiving multimedia element；
First determining module 52, for determining the first positioning for corresponding to the multimedia element in panorama ball surface, wherein
The panorama ball inner surface rendering has rectangle panoramic video figure；
Second determining module 53 is translated for determining to position described first to the centre of sphere direction of the panorama ball
Distance D；
Third determining module 54, for according to first positioning and the distance D, determining that the inside of the panorama ball is empty
Between described in multimedia element target positioning；
Add module 55, for the multimedia element to be added at the target positioning, wherein the multimedia member
The visible surface of element has the datum mark chosen in advance, and the datum mark overlaps with target positioning and the centre of sphere and institute
Line and the visible surface for stating target positioning are perpendicular.
Optionally, first determining module 52 includes：
First receiving submodule, the two-dimensional coordinate information for receiving the rectangle panoramic video figure；
Second receiving submodule, for receiving the second positioning for corresponding to the multimedia element in rectangle panoramic video figure；
Submodule is rendered, for the mapping relations and the rectangle aphorama according to preset plane coordinates and spherical coordinate
The rectangle panoramic video figure is rendered to panorama ball inner surface by the coordinate information of frequency figure；
First determination sub-module, for according to the mapping relations, determining that described second is located in the panorama ball surface
Upper corresponding first positioning.
Optionally, second determining module 53 includes：
Second determination sub-module is used for the radius of a ball R of the dimension information and the panorama ball according to the multimedia element,
It determines and positions the distance D translated to the centre of sphere direction of the panorama ball by described first.
Optionally, second determination sub-module includes：
Determination unit determines the visible surface of the multimedia element for the dimension information according to the multimedia element
On datum mark；
First computing unit, the maximum distance L for calculating the datum mark and each marginal point on the visible surface；
Second computing unit, for according to the maximum distance L and the radius of a ball R, calculate by described first position to
The distance D that the centre of sphere direction of the panorama ball is translated.
Optionally, the determination unit includes：
First determination subelement, for according to the dimension information of the multimedia element determine the multimedia element can
Depending on the geometric center in face；
Second determination subelement, the datum mark for being determined as the geometric center on the visible surface.
Optionally, described device further includes：
Computing module is used for the dimension information of the dimension information and the multimedia element according to the panorama ball, calculates
The scaling M of the multimedia element；
First reduces module, for being reduced to the maximum distance L according to the scaling M, obtain scaling away from
From M*L；
Second reduces module, and for being reduced to the multimedia element according to the scaling M, it is more to obtain scaling
Media elements；
Second computing unit includes：
Computation subunit, for according to the scaling distance M*L and the radius of a ball R, calculating by described first position to
The distance D that the centre of sphere direction of the panorama ball is translated；
The add module 55 includes：
Submodule is added, for the scaling multimedia element to be added at the target positioning.
Optionally, second computing unit is used to calculate distance D according to following formula：
For device embodiments, since it is basically similar to the method embodiment, so fairly simple, the correlation of description
Place illustrates referring to the part of embodiment of the method.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiment, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can be provided as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be with reference to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in flow and/or box combination.These can be provided
Computer program instructions are set to all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine so that is held by the processor of computer or other programmable data processing terminal equipments
Capable instruction generates for realizing in one flow of flow chart or multiple flows and/or one box of block diagram or multiple boxes
The device of specified function.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing terminal equipments
In computer-readable memory operate in a specific manner so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one flow of flow chart or multiple flows and/or one side of block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing terminal equipments so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one flow of flow chart or multiple flows
And/or in one box of block diagram or multiple boxes specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also include other elements that are not explicitly listed, or further include for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device including the element.
Processing method to a kind of panoramic video provided by the present invention and a kind of processing unit of panoramic video above, into
It has gone and has been discussed in detail, principle and implementation of the present invention are described for specific case used herein, the above implementation
The explanation of example is merely used to help understand the method and its core concept of the present invention；Meanwhile for the general technology people of this field
Member, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion this explanation
Book content should not be construed as limiting the invention.
Claims (14)
1. a kind of processing method of panoramic video, which is characterized in that including：
Receive multimedia element；
Determine the first positioning that the multimedia element is corresponded in panorama ball surface, wherein the panorama ball inner surface rendering has
Rectangle panoramic video figure；
It determines and positions the distance D translated to the centre of sphere direction of the panorama ball by described first；
According to first positioning and the distance D, the mesh of multimedia element described in the inner space of the panorama ball is determined
Demarcate position；
The multimedia element is added at the target positioning, wherein the visible surface of the multimedia element has advance
The datum mark of selection, the positioning of the datum mark and the target overlap and the line of the centre of sphere and target positioning with
The visible surface is perpendicular.
2. according to the method described in claim 1, it is characterized in that, corresponding to the multimedia member in the determining panorama ball surface
First positioning of element, including：
Receive the two-dimensional coordinate information of the rectangle panoramic video figure；
Receive the second positioning that the multimedia element is corresponded in rectangle panoramic video figure；
According to the coordinate information of preset plane coordinates and the mapping relations and the rectangle panoramic video figure of spherical coordinate, by institute
It states rectangle panoramic video figure and renders to panorama ball inner surface；
According to the mapping relations, determine that described second is located in corresponding first positioning in the panorama ball surface.
3. according to the method described in claim 1, it is characterized in that, the determination is positioned described first to the panorama ball
The distance D that centre of sphere direction is translated, including：
According to the radius of a ball R of the dimension information of the multimedia element and the panorama ball, determination is positioned described first to institute
State the distance D that the centre of sphere direction of panorama ball is translated.
4. according to the method described in claim 3, it is characterized in that, the dimension information and institute according to the multimedia element
The radius of a ball R of panorama ball is stated, determines and positions the distance D translated to the centre of sphere direction of the panorama ball by described first, is wrapped
It includes：
According to the dimension information of the multimedia element, the datum mark on the visible surface of the multimedia element is determined；
Calculate the maximum distance L of the datum mark and each marginal point on the visible surface；
According to the maximum distance L and the radius of a ball R, calculate by described first position to the centre of sphere direction of the panorama ball into
The distance D of row translation.
5. according to the method described in claim 4, it is characterized in that, the dimension information according to the multimedia element, really
Datum mark on the visible surface of the fixed multimedia element, including：
The geometric center of the visible surface of the multimedia element is determined according to the dimension information of the multimedia element；
The geometric center is determined as the datum mark on the visible surface.
6. according to the method described in claim 4, it is characterized in that,
It is described according to the maximum distance L and the radius of a ball R, calculate the centre of sphere side positioned described first to the panorama ball
To before the distance D translated, the method further includes：
According to the dimension information of the dimension information and the multimedia element of the panorama ball, the contracting of the multimedia element is calculated
Put ratio M；
Described to calculate the datum mark with after the maximum distance L of each marginal point on the visible surface, the method further includes：
The maximum distance L is reduced according to the scaling M, obtains scaling distance M*L；
The multimedia element is reduced according to the scaling M, obtains scaling multimedia element；
It is described according to the maximum distance L and the radius of a ball R, calculate the centre of sphere side positioned described first to the panorama ball
To the distance D translated, including：
According to the scaling distance M*L and the radius of a ball R, the centre of sphere direction positioned described first to the panorama ball is calculated
The distance D translated；
It is described that the multimedia element is added at the target positioning, including：
The scaling multimedia element is added at the target positioning.
7. according to the method described in claim 4, it is characterized in that, described according to the maximum distance L and the radius of a ball R,
It calculates and positions the distance D translated to the centre of sphere direction of the panorama ball by described first, including：
8. a kind of processing unit of panoramic video, which is characterized in that including：
Receiving module, for receiving multimedia element；
First determining module, for determining the first positioning for corresponding to the multimedia element in panorama ball surface, wherein described complete
The rendering of scape ball inner surface has rectangle panoramic video figure；
Second determining module positions the distance D translated to the centre of sphere direction of the panorama ball for determining by described first；
Third determining module, for according to first positioning and the distance D, determining institute in the inner space of the panorama ball
State the target positioning of multimedia element；
Add module, for the multimedia element to be added at the target positioning, wherein the multimedia element can
There is the datum mark chosen in advance depending on face, the datum mark overlaps with target positioning and the centre of sphere and the target
The line of positioning and the visible surface are perpendicular.
9. device according to claim 8, which is characterized in that first determining module includes：
First receiving submodule, the two-dimensional coordinate information for receiving the rectangle panoramic video figure；
Second receiving submodule, for receiving the second positioning for corresponding to the multimedia element in rectangle panoramic video figure；
Submodule is rendered, for the mapping relations and the rectangle panoramic video figure according to preset plane coordinates and spherical coordinate
Coordinate information, the rectangle panoramic video figure is rendered into panorama ball inner surface；
First determination sub-module, for according to the mapping relations, determine described second be located in it is right in the panorama ball surface
The first positioning answered.
10. device according to claim 8, which is characterized in that second determining module includes：
Second determination sub-module is used for the radius of a ball R of the dimension information and the panorama ball according to the multimedia element, determines
The distance D translated to the centre of sphere direction of the panorama ball is positioned by described first.
11. device according to claim 10, which is characterized in that second determination sub-module includes：
Determination unit, for the dimension information according to the multimedia element, on the visible surface for determining the multimedia element
Datum mark；
First computing unit, the maximum distance L for calculating the datum mark and each marginal point on the visible surface；
Second computing unit, for according to the maximum distance L and the radius of a ball R, calculating to be positioned described first to described
The distance D that the centre of sphere direction of panorama ball is translated.
12. according to the devices described in claim 11, which is characterized in that the determination unit includes：
First determination subelement, the visible surface for determining the multimedia element according to the dimension information of the multimedia element
Geometric center；
Second determination subelement, the datum mark for being determined as the geometric center on the visible surface.
13. according to the devices described in claim 11, which is characterized in that described device further includes：
Computing module, for the dimension information according to the dimension information and the multimedia element of the panorama ball, described in calculating
The scaling M of multimedia element；
First diminution module obtains scaling distance M* for reducing the maximum distance L according to the scaling M
L；
Second reduces module, for being reduced to the multimedia element according to the scaling M, obtains scaling multimedia
Element；
Second computing unit includes：
Computation subunit, for according to the scaling distance M*L and the radius of a ball R, calculating to be positioned described first to described
The distance D that the centre of sphere direction of panorama ball is translated；
The add module includes：
Submodule is added, for the scaling multimedia element to be added at the target positioning.
14. according to the devices described in claim 11, which is characterized in that second computing unit is based on according to following formula
Calculate distance D：
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