CN103336403B - A kind of 5D360 ° of ring curtain digital high definition three-dimensional film method for making - Google Patents
A kind of 5D360 ° of ring curtain digital high definition three-dimensional film method for making Download PDFInfo
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- CN103336403B CN103336403B CN201310221004.8A CN201310221004A CN103336403B CN 103336403 B CN103336403 B CN 103336403B CN 201310221004 A CN201310221004 A CN 201310221004A CN 103336403 B CN103336403 B CN 103336403B
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Abstract
The invention provides a kind of 5D360 ° of ring curtain digital high definition three-dimensional film method for making, utilize existing three-dimensional animation making software, to 360 ° of ring-like screen real radiuss (R) and height (H) determination, calculate a point screen quantity (S), the quantity of each point of screen image grizzly bar (G) and observation station distance (L), by setting the distance (D) between two analog video cameras, rendering parameter is set, respectively playing up of each frame is carried out to the three-dimensional data model of each grizzly bar and scene, export left eye and right eye two width high-definition image grizzly bar, many high-definition image grizzly bars are carried out seamless spliced process composition screen left eye and right eye high-definition image in order, and carry out straightening, splicing fusion treatment is carried out to the edge of each point of screen image, realize multiple points of screen high-definition images and be spliced into 360 ° of complete three-dimensional high-definition images, picture is continuous, fidelity is high, depth feelings is strong, beholder is made to incorporate in film, produce great impact.
Description
Technical field
The present invention relates to digital cinema technology, particularly relate to the 5D360 ° of ring curtain digital high definition three-dimensional film method for making adopting 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 of manufacturing technology is owing to being subject to the restriction of software and hardware itself, the stereo-picture that imaging surface is plane can only be produced, the problem brought thus has three aspects: 1. first can bring the problem that visual angle is limited to, adopt the stereo-picture of this kind of fabrication techniques stereoscopic sensation in certain specific angular field of view stronger, and once exceed this angular field of view, the stereo perception of spectators will weaken greatly.Experience with human stereo vision outside the visual imaging face that this its edge of image being this kind of technology generates because the visual imaging face of people is arc has dropped on people do not meet produced.2. be secondly the problem of viewing point limitation, its reason is the same, in certain specific range of observation, namely watch stereoscopic sensation when image player comparatively by force, and once the position of spectators' viewing is not in this range of observation, stereo perception will weaken greatly.3. be finally the problem of visual fatigue, the image generated owing to adopting this kind of manufacturing technology inevitable some not on the visual imaging face of people, making spectators' crystalline lens when watching film be in continuous focus state all the time, causing being easy to cause visual fatigue finally to affect viewing effect.
The three-dimensional high-definition movie manufacturing technology of traditional ring curtain is owing to being subject to the technology limitation of imaging surface, must cause the object played up in a certain particular range before imaging surface cannot sequential focusing accurate, the problem brought thus has two aspects: the problem that 1. first can produce discontinuous and each imaging surface piece of image, namely the image that each imaging surface generates has crack, especially object is nearby more obvious, and each imaging surface can produce the problem of piece when final projection is play simultaneously.2. be secondly the strong and weak problem of visual stereoscopic sense, make must adjust the simulation interpupillary distance of right and left eyes video camera to control the power of visual stereoscopic sense when some making, although at this moment visual stereoscopic sense enhances, can aggravate the 1. individual problem produce, make the 1. individual problem become more obvious.This two problems is held each other back, and greatly have impact on final visual experience.
Traditional three-dimensional high-definition movie manufacturing technology can only carry out preview stereoeffect by d-making software before final projection is play.Sometimes stereoeffect and real movie theatre stereoeffect make a big difference, and again in software adjust, be rendered into projective tests again until stereoeffect perfection, need to pay a large amount of costs and carry out relief test job.
Summary of the invention
The object of the invention is to solve prior art Problems existing, a kind of 5D360 ° of ring curtain digital high definition three-dimensional film method for making is provided.Adopt the imaging surface cutting techniques based on calculus, controlled the quantity of sub-imaging surface by optimum configurations, make the imaging surface of virtual video camera in Computerized three-dimensional be infinitely close to real human visual imaging surface.
Realize above-mentioned purpose, technical scheme of the present invention is as follows:
A kind of 5D360 ° of ring curtain digital high definition three-dimensional film method for making, is characterized in that, comprise the steps:
A, radius (R), highly (H) that 360 ° of annular screens are provided, screen longitudinal frame, screen lateral resolution;
B, by first party formula S
y
Calculate longitudinally point screen quantity S
y; By second party formula S
x calculate laterally point screen quantity S
x; By third party formula G
calculate a point screen image grizzly bar quantity G; By the 4th equation 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) determining two analog video cameras and central observation point 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, export right and left eyes two width grizzly bar image, each for continuous print left eye grizzly bar image and right eye grizzly bar image mosaic are carried out straightening and generate left eye and divide screen image and right eye to divide screen image;
F, point screen image are by the preview on ring curtain of ring curtain digital stereo movie system;
G, function attenuation processing is done in the splicing overlapping region between point screen image and point screen image forms corresponding circle of sensation, make image form continuous whole image in stitching portion when broadcasting.
Divide screen image by the preview on ring curtain of ring curtain digital stereo cinema system, realize the real-time adjustment in manufacturing process and play up again.
In manufacturing process, by every two field picture load time code, the auxiliary synergy equipment of ring curtain digital stereo movie system can be triggered, comprise vibrations, jet, spraying, acousto-optic-electric, precisely can arrive the control of every frame, accomplish synchronous with film.
Compared with prior art, the present invention overcomes by the principle of stereoscopic vision of to simulate human body completely the problem such as visual angle limitation, observation point limitation, stereoscopic vision sense of discomfort that general three-dimensional film manufacturing technology causes.The present invention adopts the imaging surface cutting techniques based on calculus, the quantity of sub-imaging surface is controlled by optimum configurations, the imaging surface of virtual video camera in Computerized three-dimensional is made to be infinitely close to real human visual imaging surface, have height bio-imitability and man-machine friendly, what bring thus is the omnibearing stereo vision experience of 360 full angle.
The present invention adopts many split screens to play up reprojection technology, the distance of imaging surface is defined by parameter, the quantity of imaging surface is risen to the several times of ordinary skill, make the sight equation of imaging surface be reduced to less than 1/12nd of general technology, and make each imaging surface by the image fusion technology that this technology is exclusive be able to seamless connection.
Be connected because 3-D cartoon production system is provided with communication with ring curtain digital stereo cinema system, when three-dimensional software makes just can on ring curtain the power of live preview stereoeffect, can adjust the quantity of each imaging surface, the simulation interpupillary distance of virtual video camera, the function curve of imaging surface fusion band in real time, high degree of interactivity makes make efficiency and stereoeffect greatly improve.
The three-dimensional film that the present invention makes has the solid that general three-dimensional manufacturing technology cannot realize and passes through sense and viewing comfortableness, 360 ° of complete three-dimensional high-definition images, picture is continuous, fidelity is high, depth feelings is strong, make beholder incorporate in film, produces great impact.
Accompanying drawing explanation
Fig. 1 is screen size and the relation schematic diagram dividing screen;
Fig. 2 is the relation schematic diagram of point screen image and corresponding circle of sensation;
Fig. 3 is the relation schematic diagram of projector's projecting plane live part and spilling part;
Fig. 4 is the relation schematic diagram of projector's projecting plane live part and spilling part;
Fig. 5 is a point selection schematic diagram for screen image grizzly bar;
Fig. 6 is three-dimensional model and actual ratio schematic diagram;
Fig. 7 be point screen image grizzly bar play up schematic diagram;
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
For making to have a better understanding and awareness architectural feature of the present invention and effect of reaching, coordinating detailed description in order to preferred embodiment and accompanying drawing, being described as follows:
See Fig. 1 to Fig. 9, a kind of 5D360 ° of ring curtain digital high definition three-dimensional film method for making, comprises the steps:
(1) radius (R), highly (H) of 360 ° of annular screens, screen longitudinal frame, screen lateral resolution are provided;
As shown in Figure 1, determine the size of 360 ° of annular screens, comprise radius (R) and the height (H) of annular screen, calculate a point screen quantity (S) according to screen resolution requirement and projector's resolution, this ensures to realize high definition even the making basis of ultra high-definition input.
(2) by first party formula S
y
Calculate longitudinally point screen quantity S
y; By second party formula S
x calculate laterally point screen quantity S
x; As described in Figure 1, to divide screen quantity to be 16, longitudinally point screen quantity is 2 and laterally divides screen quantity to be 8.
Because each point of screen image comprises corresponding circle of sensation, corresponding circle of sensation refers to image and image lap, and as shown in Figure 2, corresponding circle of sensation generally accounts for point ratio >=10% for screen image, and aforementioned proportion is called fusion ratio.Because the radian relation of screen and the problem of projector installation site can produce the problem that point screen image is overflowed on projector projecting plane in reality debugging, as shown in Figure 3, Figure 4, so projector's resolution must be greater than a point resolution for screen picture requirement, the scaling factor of this part creates the scale factor in formula, be generally empirical value, the span of scale factor is 1< α <1.2.
By third party formula G
calculate a point screen image grizzly bar quantity, by the 4th equation G
∑=S
y× S
x× G computed image grizzly bar sum; Divide the quantity of screen image grizzly bar (G) to be solve the key being reduced to image planes sight equation, quantity more imaging surfaces sight equation is less.Wherein, the selection of empirical value angle is more little more can be reduced to image planes sight equation, but consider the economic and practical made, the span of usual empirical value angle is 5 °-20 °, as shown in Figure 5, in figure, each point of screen image is divided into 9 grizzly bars (g1-g9), can determine according to cost of manufacture requirement and on-the-spot specification.Image grizzly bar sum G can be drawn thus
∑=S
y× S
x× G, with 16 split screen citings, 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 etc. of role's dialogue.Set up three-dimensional animation data model according to drama, comprise model of place and actor model, modelling size requirements is as shown in Figure 5 generally 1:1, is loaded in 3-D cartoon production system by data model.
(4) spacing (D) of two analog video cameras and the central observation point distance (L) from imaging surface is determined;
Determine the spacing (D) of two analog video cameras and the central observation point distance (L) from imaging surface.If the ratio that makes as shown in Figure 6 is by actual 1:1, then the spacing of usual two analog video cameras is the space D=6 × making ratio of the interpupillary distance (about 6cm) of normal person, analog video camera.Central observation point, from the distance (L) of imaging surface, is generally the radius (R) of annular screen, and this is also relevant with making ratio, i.e. L=R × making ratio.
(5) divide close shot, distant view to carry out every frame to three-dimensional data model to play up, export right and left eyes two width grizzly bar image, analog video camera rotates 360/ (Sx*G) degree, complete playing up of all grizzly bars, as shown in Figure 7, g1-g9 is the image grizzly bar in point screen region, by the direction of arrow in figure, image grizzly bar is played up one by one, by each for continuous print left eye grizzly bar image and right eye grizzly bar image mosaic and carry out straightening generate left eye divide screen image and right eye to divide screen image.
According to drama scene changes and fortune mirror process, play up stage by stage and superpose.Because close shot is different with the focusing of distant view, as shown in Figure 8, think and make beholder can obtain the different picture rich in detail assembling lower far and near scape, close shot model and distant view model are done and play up respectively.
Carry out every frame to close shot three-dimensional model to play up, as shown in Figure 7, export right and left eyes two width grizzly bar image, each for continuous print left eye grizzly bar image and right eye grizzly bar image mosaic are carried out straightening, generates left eye and divide screen image and right eye to divide screen image.
Carry out every frame to distant view three-dimensional model to play up, as shown in Figure 7, export right and left eyes two width grizzly bar image, each for continuous print left eye grizzly bar image and right eye grizzly bar image mosaic are carried out straightening and generate left eye and divide screen image and right eye to divide screen image.
Three-dimensional film manufacturing system is provided with network with ring curtain digital stereo cinema system and is connected, in manufacturing process, immediately each point of screen image can be carried out actual preview by ring curtain digital stereo cinema system, according to the actual stereoeffect of ring curtain, the quantity of each imaging surface, the simulation interpupillary distance of virtual video camera, the function curve of imaging surface fusion band can be adjusted in real time, high degree of interactivity can truly represent actual project effect, accomplish to integrade theory with practice, make efficiency and stereoeffect are improved greatly.5D360 ° of ring curtain digital stereo cinema system of our company's exploitation is preferably used to bear this function.
(6) a point screen image for close shot and distant view is superposed, play up generation left eye after carrying out straightening again and divide screen image and right eye to divide screen image.Function attenuation processing being done in splicing overlapping region between point screen and point screen and forms corresponding circle of sensation, making image form continuous whole image in stitching portion when playing.
The loading of timing code, by every two field picture load time code, can trigger the auxiliary synergy equipment of 5D360 ° of ring curtain digital stereo cinema system, as vibrations, jet, spraying, acousto-optic-electric etc., precisely can arrive the control of every frame, accomplish synchronous with film, represent film effect more accurately.
More than show and describe the advantage of the ultimate principle of invention, principal character and invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and instructions; 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 claimed scope of the present invention.The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (3)
1. a 5D360 ° of ring curtain digital high definition three-dimensional film method for making, is characterized in that, comprise the steps:
A, radius (R), highly (H) that 360 ° of annular screens are provided, screen longitudinal frame, screen lateral resolution;
B, by first party formula S
y
Calculate longitudinally point screen quantity S
y; By second party formula S
x calculate laterally point screen quantity S
x; By third party formula G
calculate a point screen image grizzly bar quantity G; By the 4th equation 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) determining two analog video cameras and central observation point 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, export right and left eyes two width grizzly bar image, each for continuous print left eye grizzly bar image and right eye grizzly bar image mosaic are carried out straightening and generate left eye and divide screen image and right eye to divide screen image;
F, point screen image are by the preview on ring curtain of ring curtain digital stereo cinema system;
G, function attenuation processing is done in the splicing overlapping region between point screen image and point screen image forms corresponding circle of sensation, make image form continuous whole image in stitching portion when broadcasting.
2. method for making according to claim 1, is characterized in that, point screen image, by the preview on ring curtain of ring curtain digital stereo cinema system, realizes the real-time adjustment in 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 code, the auxiliary synergy equipment of ring curtain digital stereo cinema system can be triggered, comprise vibrations, jet, spraying, acousto-optic-electric, precisely can arrive the control of every frame, accomplish synchronous with film.
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| CN106067160B (en) * | 2016-06-21 | 2018-12-11 | 江苏亿莱顿智能科技有限公司 | Large screen merges projecting method |
| 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 |
| CN111114192A (en) * | 2020-01-09 | 2020-05-08 | 温州商学院 | Method for making digital stereo mural |
| CN113628328B (en) * | 2021-08-12 | 2024-05-10 | 深圳须弥云图空间科技有限公司 | Model rendering method and device for joint members |
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| CN1095205A (en) * | 1993-05-07 | 1994-11-16 | 黎锋 | Endless screen TV projection system |
| KR20020040919A (en) * | 2000-11-25 | 2002-05-31 | 최효승 | Single projector multiple projection device theather system |
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