CN102005062A - Method and device for producing three-dimensional image for three-dimensional stereo display - Google Patents
Method and device for producing three-dimensional image for three-dimensional stereo display Download PDFInfo
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Abstract
The invention provides a method and a device for producing a three-dimensional image for three-dimensional stereo display. The method comprises the following steps of: firstly, drawing a three-dimensional interface image in an X, Y and Z three-dimensional drawing space; then, rotating the entire three-dimensional interface image along the X and Z plane clockwise or counterclockwise by an angle Alpha so as to draw an interface image with left eye and right eye view effect, obtain a corresponding view image and write in a storage; and repeating the steps until left eye and right eye view images required by each frame of stereo display for the use of three-dimensional stereo display equipment. In the invention, the entire three-dimensional interface image is rotated by a certain angle to draw the interface image with left eye view effect and the interface image with right eye view effect so that the stereo display equipment displays three-dimensional stereo effect. Under the condition of not wearing special eyeglasses, a user can enjoy stereo display effect while using a user interface or playing a three-dimensional game, therefore, user experience is greatly increased.
Description
Technical field
The present invention relates to a kind of method for making of three-dimensional plot image source, particularly a kind of by changing method and the device that the making of viewpoint angle is used for the three-dimensional plot image source of 3 D stereo demonstration.
Background technology
The world that most people are seen all is three-dimensional, and the nearly all medium that is touched, no matter be printing, photo or image, all be two-dimentional.Nowadays, along with people's strong day by day to 3-dimensional image interest, up-to-date stereo display technique can satisfy the demand that people deeply observe image and complex data.The things that the progress of science and technology just progressively makes image that we watch on display and us directly see with eyes is consistent, and this is owing to there being a variety of reasons to impel people interested in the 3-D display.Many professional application need have relief vision, also have some occasions to adopt 3-D view accurately to extract information fast and more from the virtual data of complexity, and have the advantage of improving interactive efficiency and reducing signal noise ratio (snr) of image.
In computing machine, show the 3d figure, in two dimensional surface, show three-dimensional picture in other words.Unlike real three dimensions in the real world, real metric space is arranged.Just look the same in computing machine real world, therefore the 3d figure that shows at computing machine allows human eye take a fancy to just as genuine exactly.It is exactly near big and far smaller that human eye has a characteristic, will form stereoscopic sensation.Computer screen is a planar, why we can enjoy just like the 3-D view as the material object, be because the difference of color gray scale and make human eye produce visual illusion when being presented on the computer screen, and the computer screen of two dimension is perceived as 3-D view.Based on the relevant knowledge of color science, the projection at three-dimensional body edge generally shows high luminance color, and sunk part is owing to being subjected to blocking of light to show dark-coloured.This understanding be widely used in net along or other use in to the drafting of button, 3d lines.
The eighties in 20th century, adopted the right and left eyes image as the continuous technique for displaying of independent frame based on the three-dimensional display of CRT (Cathode Ray Tube, cathode-ray tube (CRT)).When watching, image carries out one of in two ways synchronously, and a kind of method is to wear to adopt the glasses that switch the LCD shutter fast, comes to block continuously left eye and eye image in good time.Another kind method is to adopt CRT generation circular polarization image in the opposite direction, and this image is to produce by very fast liquid crystal board of a response time that is placed on the display front, and watches by low weight circular polarization glasses.In these two kinds of methods, for fear of flicker, the refreshing frequency of CRT is the twice of normal frame speed, approximately is 100Hz.But this stereo display needs a large amount of films that pass through complicated 3-D technology shooting, and when not having these special shooting film sources, the user can't enjoy three-dimensional stereo effect on stereoscopic display device.
Some people thinks, perfectly dimension display technologies does not need that the beholder is before eyes to wear any stereos copic viewing instrument, and the stereo display product that a lot of companies have developed does not need glasses is arranged, or is called auto-stereoscopic display device.Generally by sending the odd field image to eyes, the mode that sends the even field image to the another eyes resolves into two parts with display resolution to these products, but this also requires the beholder to make their head remain on the position of optimal viewing point.In addition, the method for realization three-dimensional stereoscopic visual also comprises by two head mounted displays isolates the image of each eye, and needs the user that head is kept a kind of method that can isolate the binocular images posture.A kind of theater formula stereo-picture generation technique for mass viewer audiences is also arranged in addition, and it can throw ring curtain image to real three dimensions by the front and back projection system, and left and right sides image is distinguished by frame sequence or frame polarization polarity.
In any case but at first, the stereo display scheme must have good image source, because people have been accustomed to watching qualitative picture on the tabletop display of routine, expects that also stereo-picture has same image quality.In addition, the right and left eyes image must separate under the prerequisite of not sacrificing image quality as much as possible.Secondly, display system also must be made us watching comfortable.When people watched stereoscopic three-dimensional image, hope can not change their the common custom of watching, and for example, does not wish to wear heavy glasses etc.The 3rd, outstanding stereoscopic display device must be to install easily and use, and simple with the interface of computing machine, image card and software etc.Use dimension display technologies to watch the user of complex data and image, their notice should be concentrated on content of being watched rather than the means of watching.But there is not relevant technology open at present.
Summary of the invention
The technical problem to be solved in the present invention, be to provide a kind of method for making and device of three-dimensional plot image source, it is by whole three-dimensional interface figure being rotated to an angle with the interface figure of drafting left-eye view effect and the interface figure of right-eye view effect, draw two picture makings respectively and be used for the 3-D view that 3 D stereo shows, make the user enjoy the stereo display effect when using user interface or when carrying out 3d gaming under the condition of special glasses not needing to wear, significantly improve user experience.
The present invention is achieved in that a kind of production method that is used for the 3-D view of 3 D stereo demonstration, and it comprises the steps:
Wherein, step 30 and 40 order are not limit successively; The position that sight line converged when described viewpoint was the picture skeleton view; The computing formula of described anglec of rotation a is:
Tan (a)=(D_eye/2)/(L_panel+L_graphic), in the formula:
D_eye represents the interpupillary distance of normal person's eyes;
L_panel represents the distance of people's face to screen;
L_graphic represents the distance of the central point of three-dimensional interface figure to screen.
The invention provides a kind of generation device that is used for the 3-D view of 3 D stereo demonstration, comprising:
The basic setup unit is used for drawing good three-dimensional interface figure based on X, Y, the Z three-dimensional drawing space of XYZ coordinate system, and a viewpoint position is set;
Left eye interface figure generation unit, be used for basis at described three-dimensional interface figure, central point with this three-dimensional interface figure is a rotation center, with whole three-dimensional interface figure along XZ plane dextrorotation gyration a, thereby obtain the interface figure of left-eye view effect; Afterwards, project on the screen, obtain the left-eye view image, then the left-eye view image is write in the storer by the interface figure of viewpoint position with the left-eye view effect;
Right eye interface figure generation unit, be used for basis at described three-dimensional interface figure, central point with this three-dimensional interface figure is a rotation center, and whole three-dimensional interface figure is rotated counterclockwise angle a along the XZ plane, thereby obtains the interface figure of right-eye view effect; Afterwards, project on the screen, obtain the right-eye view image, then the right-eye view image is write in the storer by the interface figure of viewpoint position with the right-eye view effect;
Repeat drawing unit, be used to collect the image that described left eye interface figure generation unit and right eye interface figure generation unit obtain respectively, finish the required right and left eyes view image of a frame stereo display, continue to draw, use for the 3 D stereo display device until finishing the required right and left eyes view image of each required frame stereo display;
The position that sight line converged when wherein, described viewpoint was the picture skeleton view; The computing formula of described anglec of rotation a is:
Tan (a)=(D_eye/2)/(L_panel+L_graphic), in the formula:
D_eye represents the interpupillary distance of normal person's eyes;
L_panel represents the distance of people's face to screen;
L_graphic represents the distance of the central point of three-dimensional interface figure to screen.
The present invention has following advantage: on the basis of three-dimensional interface figure, obtain the needed three-dimensional plot image source of stereoscopic display device by drawing the right and left eyes view image respectively, for follow-up stereo display provides the basis, but and make follow-up stereo display direct viewing and need not to wear special glasses by the three-dimensional plot image source of inventive method gained, the shock that allows the user obtain stereo display and 3 D graphical interface is simultaneously enjoyed; Can be widely used in fields such as the user interface of various 3d gaming pictures, handheld device and three-dimensional film.
Description of drawings
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is conventional 3-D view perspective principle schematic.
Fig. 2 is the XZ face perspective view of Fig. 1.
Fig. 3 is the effect synoptic diagram that the anthropomorphic dummy of Fig. 1 arrives soon.
Fig. 4 is the principle schematic of left-eye view image in the inventive method.
Fig. 5 is the principle schematic of right-eye view image in the inventive method.
Fig. 6 is the inventive method schematic flow sheet.
Fig. 7 is the calculating derivation graph of three-dimensional interface figure anglec of rotation a in the inventive method.
Fig. 8 is the structured flowchart of a 3 d display device of demonstration the inventive method gained image source.
Embodiment
As depicted in figs. 1 and 2, with normal three-dimensional picture screen projection principle is example, at first be in the drawing space, to draw good three-dimensional interface figure 100, and viewpoint position is set, and then from viewpoint position, three-dimensional interface figure 100 is projected on the screen 200, thereby the image that obtains needing to show is an interface figure 300; This projective techniques is conventional 3-D view foreshortened figure, and viewpoint herein is the viewpoint position when being the picture skeleton view.
Again as shown in Figure 3, if stereo display, the effect that then needs the anthropomorphic dummy to arrive soon, four folded in twos scopes of dotted line are the effect that images of left and right eyes is watched this interface figure 300 among the figure.Therefore to produce the required right and left eyes image of stereo display, can make the angle of viewpoint motionless, three-dimensional interface figure 100 integral levels (promptly at the XY face) of the drawing back that rotates to an angle is being projected screen, and (parallax is exactly to observe the direction differences that same target was produced from two points that certain distance is arranged to obtain the different parallax effect of right and left eyes; See two angles between the point from target, be called the parallax of these two points).
Based on above-mentioned principle, the while, to Fig. 7, the production method that is used for the 3-D view of 3 D stereo demonstration of the present invention comprised the steps: with reference to figure 4
Wherein, step 30 and 40 order are not limit successively; The position that sight line converged when described viewpoint was the picture skeleton view; Emphasis is with reference to shown in Figure 7, and the computing formula of described anglec of rotation a is:
Tan (a)=(D_eye/2)/(L_panel+L_graphic), in the formula:
D_eye represents the interpupillary distance of normal person's eyes;
L_panel represents the distance of people's face to screen;
L_graphic represents the distance of the central point of three-dimensional interface figure to screen.
At last as shown in Figure 8, for showing by the inventive method gained image source, can be provided with as next 3 d display device, this 3 d display device comprises a CPU, an external memory storage, a stereo display control module and a GPU who all is connected in bus, and comprises that one is connected in the stereoscopic display device of described stereo display control module.Wherein,
Described CPU: be responsible for touch screen controller and indicative control unit and GPU being controlled by bus;
Described GPU: be responsible for control, obtain required texture map picture from external memory storage, store external memory storage into after drawing out view data to be shown then by bus according to CPU;
Described external memory storage: be responsible for required whole materials of storage user interface and view data and handle back view data to be shown through GPU;
Described bus: be an interconnected unit, carry each unit on bus is linked together that the unit on any bus can be by bus access to carry other unit in bus;
Described stereo display control module: be responsible for reading right and left eyes image to be displayed data respectively from external memory storage, and the right and left eyes view data is flowed to the stereoscopic display device demonstration according to the needed form of stereoscopic device by bus;
Described stereoscopic display device: be responsible for the right and left eyes view data is shown, for the user provides the stereo display effect.
The operating process of the overall hardware of described 3 d display device:
1. after hardware began to work on power, CPU made each unit begin operate as normal each unit initialization;
2. after software systems started, CPU began to control GPU and draws the 3 D graphical interface that stereo display is used;
3. after GPU obtains the order of CPU, begin to read the required texture map picture of drafting from external memory storage, and then drawing three-dimensional interface figure;
4. after having drawn three-dimensional interface figure, when three-dimensional interface figure was projected two-dimensional screen, anthropomorphic dummy's right and left eyes used different angles to project the user interface that supplies left eye and right eye to watch, i.e. images of left and right eyes view image respectively;
5. store right and left eyes view image to be shown into external memory storage;
6.CPU begin to dispose the stereo display control module, order stereo display control module shows the image that GPU draws;
7. after the stereo display control module obtains cpu command, read right and left eyes view image to be shown from external memory storage, be treated to the required data layout of stereoscopic display device after, be sent to stereoscopic display device and show;
After the right and left eyes image rendering at a framed user interface finished, CPU can continue the required right and left eyes user interface image of GP configuring U drafting next frame user interface according to user's control or system's needs.
The present invention also provides a kind of generation device that is used for the 3-D view of 3 D stereo demonstration, comprising:
The basic setup unit is used for drawing good three-dimensional interface figure based on X, Y, the Z three-dimensional drawing space of XYZ coordinate system, and a viewpoint position is set;
Left eye interface figure generation unit, be used for basis at described three-dimensional interface figure, central point with this three-dimensional interface figure is a rotation center, with whole three-dimensional interface figure along XZ plane dextrorotation gyration a, thereby obtain the interface figure of left-eye view effect; Afterwards, project on the screen, obtain the left-eye view image, then the left-eye view image is write in the storer by the interface figure of viewpoint position with the left-eye view effect;
Right eye interface figure generation unit, be used for basis at described three-dimensional interface figure, central point with this three-dimensional interface figure is a rotation center, and whole three-dimensional interface figure is rotated counterclockwise angle a along the XZ plane, thereby obtains the interface figure of right-eye view effect; Afterwards, project on the screen, obtain the right-eye view image, then the right-eye view image is write in the storer by the interface figure of viewpoint position with the right-eye view effect;
Repeat drawing unit, be used to collect the image that described left eye interface figure generation unit and right eye interface figure generation unit obtain respectively, finish the required right and left eyes view image of a frame stereo display, continue to draw, use for the 3 D stereo display device until finishing the required right and left eyes view image of each required frame stereo display;
The position that sight line converged when wherein, described viewpoint was the picture skeleton view; The computing formula of described anglec of rotation a is:
Tan (a)=(D_eye/2)/(L_panel+L_graphic), in the formula:
D_eye represents the interpupillary distance of normal person's eyes;
L_panel represents the distance of people's face to screen;
L_graphic represents the distance of the central point of three-dimensional interface figure to screen.
In sum, the present invention is on the basis of three-dimensional interface figure, obtain the needed three-dimensional plot image source of stereoscopic display device by drawing the right and left eyes view image respectively, for follow-up stereo display provides the basis, but and make follow-up stereo display direct viewing and need not to wear special glasses by the three-dimensional plot image source of inventive method gained, the shock that allows the user obtain stereo display and 3 D graphical interface is simultaneously enjoyed; Can be widely used in fields such as the user interface of various 3d gaming pictures, handheld device and three-dimensional film.
Claims (2)
1. a production method that is used for the 3-D view of 3 D stereo demonstration is characterized in that: comprise the steps:
Step 10, is at first drawn good three-dimensional interface figure earlier, and a viewpoint position is set in based on X, the Y of XYZ coordinate system, Z three-dimensional drawing space;
Step 20,30 and 40 draw the interface figure of left-eye view effects and the interface figure of right-eye view effect set by step then, and obtain the corresponding view image;
Step 30, on the basis of described three-dimensional interface figure, be rotation center with the central point of this three-dimensional interface figure, with whole three-dimensional interface figure along XZ plane dextrorotation gyration a, thereby obtain the interface figure of left-eye view effect; Afterwards, project on the screen, obtain the left-eye view image, then the left-eye view image is write in the storer by the interface figure of viewpoint position with the left-eye view effect;
Step 40, on the basis of described three-dimensional interface figure, be rotation center with the central point of this three-dimensional interface figure, whole three-dimensional interface figure is rotated counterclockwise angle a along the XZ plane, thereby obtains the interface figure of right-eye view effect; Afterwards, project on the screen, obtain the right-eye view image, then the right-eye view image is write in the storer by the interface figure of viewpoint position with the right-eye view effect;
Step 50, finished the required right and left eyes view image of a frame stereo display, repeating step 20～40 until finishing the required right and left eyes view image of each required frame stereo display, uses for the 3 D stereo display device at this point;
Wherein, step 30 and 40 order are not limit successively; The position that sight line converged when described viewpoint was the picture skeleton view; The computing formula of described anglec of rotation a is:
Tan (a)=(D_eye/2)/(L_panel+L_graphic), in the formula:
D_eye represents the interpupillary distance of normal person's eyes;
L_panel represents the distance of people's face to screen;
L_graphic represents the distance of the central point of three-dimensional interface figure to screen.
2. a generation device that is used for the 3-D view of 3 D stereo demonstration is characterized in that, comprising:
The basic setup unit is used for drawing good three-dimensional interface figure based on X, Y, the Z three-dimensional drawing space of XYZ coordinate system, and a viewpoint position is set;
Step 20,30 and 40 draw the interface figure of left-eye view effects and the interface figure of right-eye view effect set by step then, and obtain the corresponding view image;
Left eye interface figure generation unit, be used for basis at described three-dimensional interface figure, central point with this three-dimensional interface figure is a rotation center, with whole three-dimensional interface figure along XZ plane dextrorotation gyration a, thereby obtain the interface figure of left-eye view effect; Afterwards, project on the screen, obtain the left-eye view image, then the left-eye view image is write in the storer by the interface figure of viewpoint position with the left-eye view effect;
Right eye interface figure generation unit, be used for basis at described three-dimensional interface figure, central point with this three-dimensional interface figure is a rotation center, and whole three-dimensional interface figure is rotated counterclockwise angle a along the XZ plane, thereby obtains the interface figure of right-eye view effect; Afterwards, project on the screen, obtain the right-eye view image, then the right-eye view image is write in the storer by the interface figure of viewpoint position with the right-eye view effect;
Repeat drawing unit, be used to collect the image that described left eye interface figure generation unit and right eye interface figure generation unit obtain respectively, finish the required right and left eyes view image of a frame stereo display, continue to draw, use for the 3 D stereo display device until finishing the required right and left eyes view image of each required frame stereo display;
The position that sight line converged when wherein, described viewpoint was the picture skeleton view; The computing formula of described anglec of rotation a is:
Tan (a)=(D_eye/2)/(L_panel+L_graphic), in the formula:
D_eye represents the interpupillary distance of normal person's eyes;
L_panel represents the distance of people's face to screen;
L_graphic represents the distance of the central point of three-dimensional interface figure to screen.
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| CN102215420A (en) * | 2011-06-20 | 2011-10-12 | 深圳创维－Rgb电子有限公司 | Method and system for switching 3D (Three-Dimensional) format of television as well as television |
| CN103327357A (en) * | 2012-03-19 | 2013-09-25 | 联想(北京)有限公司 | Three-dimensional picture presenting method and device |
| CN103718211A (en) * | 2011-06-01 | 2014-04-09 | 皇家飞利浦有限公司 | Three dimensional imaging data viewer and/or viewing |
| CN105376546A (en) * | 2015-11-09 | 2016-03-02 | 中科创达软件股份有限公司 | 2D-to-3D method, device and mobile terminal |
| CN107659772A (en) * | 2017-09-26 | 2018-02-02 | 歌尔科技有限公司 | 3D rendering generation method, device and electronic equipment |
| CN109420851A (en) * | 2017-09-04 | 2019-03-05 | 福鼎市久盛标牌有限公司 | The method and apparatus of processing dynamic and flashing picture and text on reflecting film material |
| CN109420852A (en) * | 2017-09-04 | 2019-03-05 | 福鼎市久盛标牌有限公司 | The method and apparatus of naked eye solid picture and text is processed on reflecting film material |
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| CN107659772B (en) * | 2017-09-26 | 2020-10-09 | 歌尔科技有限公司 | 3D image generation method and device and electronic equipment |
| CN110007475A (en) * | 2019-04-17 | 2019-07-12 | 万维云视（上海）数码科技有限公司 | Utilize the method and apparatus of virtual depth compensation eyesight |
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Application publication date: 20110406 |