CN103336403A - A manufacturing method for 5D 360 degrees ring screen digital high definition three-dimensional films - Google Patents
A manufacturing method for 5D 360 degrees ring screen digital high definition three-dimensional films Download PDFInfo
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Abstract
The invention provides a manufacturing method for 5D 360 degrees ring screen digital high definition three-dimensional films. By means of conventional three dimensional animation making software, the real height (H) and the real radius (R) of a 360 degrees ring screen are determined; the number of sub-screens (S), the number of image grids (G) of each sub-screen and an observation point distance (L) are calculated; through setting a distance (D) between two simulation cameras and setting rendering parameters, a three dimensional data model and a scene of each grid is subjected to rendering process in a grid by grid mode, and a left-eye high definition image grid and a right-eye high definition image grid are output; a plurality of high definition image grids are subjected to a seamless splicing sequentially to become sub screen left-eye and right-eye high definition images; the left-eye and right-eye high definition images are subjected to a deformation rectification process; edges of each sub-screen image are subjected to splicing fusion processing, and 360 degrees integral three-dimensional high definition images are formed by the splicing of a plurality of sub-screen high definition images. The images are continuous, and are high in simulation degree, strong in vertical feeling, so that viewers have a feeling of merging into movies and being strongly astonished.
Description
Technical field
The present invention relates to the digital movie technology, relate in particular to the 5D360 ° of digital high definition three-dimensional film method for making of ring curtain that adopts the three-dimensional animation technology.
Background technology
The making of the three-dimensional high-definition movie of traditional ring curtain arranges the quantity of stereo camera usually according to the quantity (normally six) of projector, this kind manufacturing technology is owing to be subjected to the restriction of software and hardware itself, can only produce imaging surface is the stereo-picture on plane, the problem of bringing thus has three aspects: the problem that 1. at first can bring the visual angle limitation, adopt stereo-picture stereoscopic sensation in certain specific angular field of view of this kind fabrication techniques stronger, in a single day and having surpassed this angular field of view, spectators' stereo perception will weaken greatly.This is because people's visual imaging face is arc and its edge of image that this kind technology generates has dropped on outside people's the visual imaging face and do not meet with the human stereo vision impression and to produce.2. secondly be the problem of watching a limitation, its reason is the same, namely watches stereoscopic sensation stronger in certain specific range of observation when image is play, in case and the position that spectators watch not in this range of observation, stereo perception will weaken greatly.3. be the problem of visual fatigue at last, since the image that adopts this kind manufacturing technology to generate inevitable some not on people's visual imaging face, make spectators' crystalline lens when watching film be in continuous focus state all the time, cause being easy to cause visual fatigue to influence viewing effect at last.
The three-dimensional high-definition movie manufacturing technology of traditional ring curtain is owing to be subjected to the technology limitation of imaging surface, must cause the object before imaging surface, played up in a certain particular range can't sequential focusing accurate, the problem of bringing thus has two aspects: the problem that 1. at first can produce discontinuous and each imaging surface piece of image, be that the image that each imaging surface generates has the crack, especially nearby object is more obvious, and each imaging surface can produce the problem of piece when final projection is play simultaneously.2. secondly be the relief strong and weak problem of vision, must adjust the simulation interpupillary distance of right and left eyes video camera when making some of making and control the relief power of vision, though at this moment the vision stereoscopic sensation has strengthened, can aggravate the 1. a problem produce, make the 1. a problem become more obvious.These two problems are held each other back, and have influenced final visual experience greatly.
Traditional three-dimensional high-definition movie manufacturing technology can only be made software by three-dimensional and be come the preview stereoeffect before final projection is play.Sometimes stereoeffect and real movie theatre stereoeffect have very big difference, and are adjusting in the software, are being rendered into projective tests again till the stereoeffect perfection again, need pay a large amount of costs and carry out relief test job.
Summary of the invention
The objective of the invention is in order to solve the problem that prior art exists, a kind of 5D360 ° of digital high definition three-dimensional film method for making of ring curtain is provided.Employing is based on the imaging surface cutting techniques of calculus, controls the quantity of sub-imaging surface by parameter setting, makes that the imaging surface of virtual video camera is infinitely close to real human visual imaging surface in the Computerized three-dimensional.
Realize above-mentioned purpose, technical scheme of the present invention is as follows:
A kind of 5D360 ° of digital high definition three-dimensional film method for making of ring curtain is characterized in that, comprises the steps:
A, provide the radius (R) of 360 ° of annular screens, highly (H), screen longitudinal frame, screen lateral resolution;
B, by first party formula S
y 
Calculate and vertically divide screen quantity S
yBy second party formula S
x 
Calculate and laterally divide screen quantity S
xBy third party's formula G
Calculate and divide screen image grizzly bar quantity G; By cubic formula G
∑=S
y* S
x* G computed image grizzly bar sum; The span of empirical value angle is 5 °-20 °, and the span of scale factor is 1＜α＜1.2;
C, data model is loaded into 3-D cartoon production system;
D, the spacing (D) of determining two analog video cameras and center observation station are from the distance (L) of imaging surface;
E, divide close shot, distant view to carry out every frame to three-dimensional data model to play up, output right and left eyes two width of cloth grizzly bar images are with each continuous left eye grizzly bar image and the splicing of right eye grizzly bar image and carry out straightening and generate left eye and divide screen image and right eye to divide the screen image;
F, divide the screen image by the preview on the ring curtain of ring curtain digital stereo movie system;
G, will divide the screen image and divide splicing between the screen image to overlap the zone to do the function attenuation processing and form corresponding circle of sensation, make the image of image splicing place formation continuous whole when playing.
Divide the screen image by the preview on the ring curtain of ring curtain digital stereo cinema system, realize the real-time adjustment in the manufacturing process and play up again.
In manufacturing process, by to every two field picture load time sign indicating number, can trigger the auxiliary synergy equipment of ring curtain digital stereo movie system, comprise vibrations, jet, spraying, acousto-optic electricity, the control that can precisely arrive every frame is accomplished with film synchronous.
Compared with prior art, the present invention has overcome problems such as visual angle limitation that general three-dimensional film manufacturing technology causes, observation point limitation, stereoscopic vision sense of discomfort by the principle of stereoscopic vision of simulating human body fully.The present invention adopts the imaging surface cutting techniques based on calculus, control the quantity of sub-imaging surface by parameter setting, make that the imaging surface of virtual video camera is infinitely close to real human visual imaging surface in the Computerized three-dimensional, have height bio-imitability and man-machine friendly, what bring thus is that the omnibearing stereoscopic vision of 360 full angles is experienced.
The present invention adopts many split screens to play up shadow casting technique again, by parameter-definition the distance of imaging surface, the quantity of imaging surface is risen to the several times of ordinary skill, make the sight equation of imaging surface be reduced to below 1/12nd of general technology, and make the seamless connection that is able to of each imaging surface by the exclusive visual fusion technology of present technique.
Because being provided with communication with ring curtain digital stereo cinema system, 3-D cartoon production system is connected, just can be in the power of encircling live preview stereoeffect on the curtain when three-dimensional software is made, can adjust the quantity of each imaging surface, the simulation interpupillary distance of virtual video camera, the function curve that imaging surface merges band in real time, high degree of interactivity makes make efficiency and stereoeffect improve greatly.
The solid that the general three-dimensional manufacturing technology that has the three-dimensional film that the present invention makes can't realize is passed through sense and is watched comfortableness, 360 ° of complete three-dimensional high-definition images, picture is continuous, fidelity is high, depth feelings is strong, the beholder is incorporated in the film, produces great impact.
Description of drawings
Fig. 1 is screen size and the synoptic diagram that concerns that divides screen;
Fig. 2 is for dividing the synoptic diagram that concerns of screen image and corresponding circle of sensation;
Fig. 3 is for projector's projecting plane live part and overflow the synoptic diagram that concerns of part;
Fig. 4 is for projector's projecting plane live part and overflow the synoptic diagram that concerns of part;
Fig. 5 is for dividing the selection synoptic diagram of screen image grizzly bar;
Fig. 6 is the ratio synoptic diagram of three-dimensional model and reality;
Fig. 7 is for dividing the synoptic diagram of playing up of screen image grizzly bar;
Fig. 8 is that close shot, distant view are in the perspective view of imaging surface;
Fig. 9 is schematic flow sheet of the present invention.
Embodiment
Further understand and understanding for making architectural feature of the present invention and the effect reached had, cooperate detailed explanation in order to preferred embodiment and accompanying drawing, be described as follows:
Referring to Fig. 1 to Fig. 9, a kind of 5D360 ° of digital high definition three-dimensional film method for making of ring curtain comprises the steps:
(1) provides the radius (R) of 360 ° of annular screens, highly (H), screen longitudinal frame, screen lateral resolution;
As shown in Figure 1, determine the size of 360 ° of annular screens, comprise radius (R) and the height (H) of annular screen, calculate branch screen quantity (S) according to screen resolution requirement and projector's resolution, this is the making basis that guarantees to realize high definition even ultra high-definition input.
(2) by first party formula S
y 
Calculate and vertically divide screen quantity S
yBy second party formula S
x 
Calculate and laterally divide screen quantity S
xAs described in Figure 1, being 16 with minute screen quantity is example, and vertically dividing screen quantity to be 2 is 8 with laterally dividing screen quantity.
Because each divides the screen image to comprise corresponding circle of sensation, corresponding circle of sensation refers to image and doubling of the image part, and as shown in Figure 2, corresponding circle of sensation generally accounts for ratio 〉=10% of branch screen image, and aforementioned proportion is called fusion ratio.In reality debugging because the problem of the radian of screen relation and projector installation site can produce the problem that branch screen image is overflowed on the projector projecting plane, as shown in Figure 3, Figure 4, so projector's resolution must be greater than minute resolution of screen picture requirement, the ratio factor of this part has produced the scale factor in the formula, be generally empirical value, the span of scale factor is 1＜α＜1.2.
By third party's formula G
Calculate and divide screen image grizzly bar quantity, by cubic formula G
∑=S
y* S
x* G computed image grizzly bar sum; The quantity of dividing screen image grizzly bar (G) is to solve the key that is reduced to the image planes sight equation, and quantity more many imaging surfaces sight equation is just more little.Wherein, the selection of empirical value angle is more little more to be reduced to the image planes sight equation, but consider the economic and practical of making, usually the span of empirical value angle is 5 °-20 °, as shown in Figure 5, each divides screen image to be divided into 9 grizzly bars (g1-g9) among the figure, can require and on-the-spot specification and deciding according to cost of manufacture.Can draw image grizzly bar sum G thus
∑=S
y* S
x* G, with 16 split screens for example, the image grizzly bar adds up to G
∑=8*2*9=144
(3) data model is loaded into 3-D cartoon production system;
Set up production team, create drama, determine scenes for plot and role, fortune mirror process and details, the insertion of role's dialogue etc.Set up the three-dimensional animation data model according to drama, comprise model of place and actor model, modelling size requirements as shown in Figure 5 is generally 1:1, and data model is loaded in the 3-D cartoon production system.
(4) determine that the spacing (D) of two analog video cameras and center observation station are from the distance (L) of imaging surface;
Determine that the spacing (D) of two analog video cameras and center observation station are from the distance (L) of imaging surface.If making ratio as shown in Figure 6 is by actual 1:1, then the spacing of common two analog video cameras is normal person's interpupillary distance (about 6cm), the space D of analog video camera=6 * making ratio.The center observation station is generally the radius (R) of annular screen from the distance (L) of imaging surface, and this is also relevant with the making ratio, i.e. L=R * making ratio.
(5) dividing close shot, distant view to carry out every frame to three-dimensional data model plays up, output right and left eyes two width of cloth grizzly bar images, analog video camera rotation 360/ (Sx*G) degree, finish playing up of all grizzly bars, as shown in Figure 7, g1-g9 presses the direction of arrow among the figure for dividing the image grizzly bar in the screen zone, the image grizzly bar is played up one by one, with the splicing of each continuous left eye grizzly bar image and right eye grizzly bar image and carry out straightening and generate left eye and divide screen image and right eye to divide the screen image.
Change and fortune mirror process according to the drama scene, play up stage by stage and superpose.Because the focusing of close shot and distant view is different, as shown in Figure 8, institute thinks makes the beholder can obtain the different pictures rich in detail of assembling to descend far and near scape, close shot model and distant view model is done respectively played up.
The close shot three-dimensional model is carried out every frame play up, as shown in Figure 7, output right and left eyes two width of cloth grizzly bar images with each continuous left eye grizzly bar image and the splicing of right eye grizzly bar image and carry out straightening, generate left eye and divide screen image and right eye to divide the screen image.
The distant view three-dimensional model is carried out every frame play up, as shown in Figure 7, output right and left eyes two width of cloth grizzly bar images are with each continuous left eye grizzly bar image and the splicing of right eye grizzly bar image and carry out straightening and generate left eye and divide screen image and right eye to divide the screen image.
Three-dimensional film manufacturing system and ring curtain digital stereo cinema system are provided with network connection, in manufacturing process, can immediately each minute screen image be carried out actual preview by ring curtain digital stereo cinema system, actual stereoeffect according to the ring curtain, can adjust the quantity of each imaging surface, the simulation interpupillary distance of virtual video camera, the function curve that imaging surface merges band in real time, high degree of interactivity can truly represent actual project effect, accomplish to integrade theory with practice, make make efficiency and stereoeffect improve greatly.Preferably use 5D360 ° of ring curtain digital stereo cinema system of our company's exploitation to bear this function.
(6) the branch screen image to close shot and distant view superposes, and carries out playing up after the straightening generating left eye and dividing screen image and right eye to divide the screen image again.With minute screen with divide splicing between the screen to overlap the zone to do the function attenuation processing and form corresponding circle of sensation, make the image of image splicing place formation continuous whole when playing.
The loading of timing code by to every two field picture load time sign indicating number, can trigger the auxiliary synergy equipment of 5D360 ° of ring curtain digital stereo cinema system, as vibrations, jet, spraying, acousto-optic electricity etc., can precisely arrive the control of every frame, accomplish with film synchronously, represent the film effect more accurately.
More than show and described the advantage of ultimate principle, principal character and the invention of invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and the instructions is principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the present invention.The protection domain that the present invention requires is defined by appending claims and equivalent thereof.
Claims (3)
1. the one kind 5D360 ° digital high definition three-dimensional film method for making of ring curtain is characterized in that, comprises the steps:
A, provide the radius (R) of 360 ° of annular screens, highly (H), screen longitudinal frame, screen lateral resolution;
B, by first party formula S
y 
Calculate and vertically divide screen quantity S
yBy second party formula S
x 
Calculate and laterally divide screen quantity S
xBy third party's formula G
Calculate and divide screen image grizzly bar quantity G; By cubic formula G
∑=S
y* S
x* G computed image grizzly bar sum; The span of empirical value angle is 5 °-20 °, and the span of scale factor is 1＜α＜1.2;
C, data model is loaded into 3-D cartoon production system;
D, the spacing (D) of determining two analog video cameras and center observation station are from the distance (L) of imaging surface;
E, divide close shot, distant view to carry out every frame to three-dimensional data model to play up, output right and left eyes two width of cloth grizzly bar images are with each continuous left eye grizzly bar image and the splicing of right eye grizzly bar image and carry out straightening and generate left eye and divide screen image and right eye to divide the screen image;
F, divide the screen image by the preview on the ring curtain of ring curtain digital stereo movie system;
G, will divide the screen image and divide splicing between the screen image to overlap the zone to do the function attenuation processing and form corresponding circle of sensation, make the image of image splicing place formation continuous whole when playing.
2. method for making according to claim 1 is characterized in that, divides the screen image by the preview on the ring curtain of ring curtain digital stereo cinema system, realizes the real-time adjustment in the manufacturing process and plays up.
3. method for making according to claim 1, it is characterized in that, in manufacturing process, by to every two field picture load time sign indicating number, can trigger the auxiliary synergy equipment of ring curtain digital stereo movie system, comprise vibrations, jet, spraying, acousto-optic electricity, the control that can precisely arrive every frame is accomplished with film synchronous.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106067160A (en) * | 2016-06-21 | 2016-11-02 | 江苏亿莱顿智能科技有限公司 | Giant-screen merges projecting method |
| CN111114192A (en) * | 2020-01-09 | 2020-05-08 | 温州商学院 | Method for making digital stereo mural |
| CN112882333A (en) * | 2019-11-14 | 2021-06-01 | 上海动漫公共技术服务平台运营管理有限公司 | Ultra-high resolution stereoscopic circular screen film split-screen rendering fusion technology and tool |
| CN113628328A (en) * | 2021-08-12 | 2021-11-09 | 深圳须弥云图空间科技有限公司 | Model rendering method and device for abutted seam component |
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