CN105488801A - Method and system for combining real shooting of full dome film with three-dimensional virtual scene - Google Patents
Method and system for combining real shooting of full dome film with three-dimensional virtual scene Download PDFInfo
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Abstract
The invention relates to a method and a system for combining real shooting of a full dome film with a three-dimensional virtual scene. The method comprises the following steps: determining a spatial relation among an actor, an object and a shooting device; tracking the motion trail of the shooting device; making a corresponding three-dimensional virtual camera according to shooting parameters of the shooting device, the spatial relation among the actor, the object and the shooting device as well as the motion trail of the shooting device, and making a virtual scene through the three-dimensional virtual camera; and combining a real image shot by the shooting device with the virtual scene made by the three-dimensional virtual camera according to the principle of spatial restoring. By adopting the method and the system, the perspectives, depths and spatial angles of virtual and real elements are completely consistent, a real picture and a virtual picture obtain the same aberration at a virtual and real combination point, and virtual and real objects are at the same position in a picture and have the same perspective, so that the synthetic effect of virtual and real elements is promoted and the visual experience of audiences is improved.
Description
Technical field
The present invention relates to actual situation image in conjunction with field, the method and system of especially spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene combination.
Background technology
At present, real scene shooting and d-making combine the megatrend having become film making development, are applied in increasing film, create many impressive camera lenses.Compared with traditional production of film and TV, three-dimensional production of film and TV is in Scenario Design, establishment, and there is unrivaled advantage the motion aspect of special efficacy and camera lens, can show better visual effect; And in role's performance, true man performer can represent more fine and smooth real emotion and looks, and this point is that d-making is unapproachable so far, and therefore some film and camera lens need to use real scene shooting and the three-dimensional technology combined, both advantages are integrated, creates better film.But spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene are still blank in conjunction with this technical field, therefore, in order to pursue better project and film effect, urgently develop a kind of method that can realize spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene combination.
Summary of the invention
The method and system that the object of the embodiment of the present invention is to provide spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene to combine, being intended to solve real scene shooting element and virtual element in prior art cannot the problem of seamless combination.
Embodiments provide the method for spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene combination, described method comprises the steps:
Determine performer, spatial relationship between object and capture apparatus;
The movement locus of track up equipment;
According to the acquisition parameters of capture apparatus, performer, spatial relationship between object and capture apparatus, and the movement locus of capture apparatus, make corresponding three-dimensional camera, and make virtual scene by three-dimensional camera;
The virtual scene that the actual video take capture apparatus and three-dimensional camera make combines according to space reduction principle.
Embodiments provide the system of spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene combination, described system comprises:
Spatial relationship determining unit, for determining performer, spatial relationship between object and capture apparatus;
Tracing of the movement unit, for the movement locus of track up equipment;
Three-dimensional production unit, for the acquisition parameters of camera according to capture apparatus, performer, spatial relationship between object and capture apparatus, and the movement locus of capture apparatus, make corresponding three-dimensional camera, and make virtual scene by three-dimensional camera;
Actual situation combining unit, the virtual scene made for the actual video taken by capture apparatus and three-dimensional camera combines according to space reduction principle.
The spherical screen stereoscopic film real scene shooting that the embodiment of the present invention provides and the method and system that three-dimensional virtual scene combines, according to the acquisition parameters of capture apparatus, performer, spatial relationship between object and capture apparatus, and the movement locus of capture apparatus, make the perspective of actual situation two kinds of elements, the degree of depth, space angle is completely the same, real scene shooting picture and virtual screen is made to obtain same aberration at actual situation junction point, actual situation two objects are made to be in same position in picture, there is same perspective, improve the synthetic effect that actual situation element combines, improve the visual experience of spectators.
Accompanying drawing explanation
A kind of process flow diagram of the spherical screen stereoscopic film real scene shooting that Fig. 1 provides for the embodiment of the present invention and the method that three-dimensional virtual scene combines;
A kind of structural representation of the spherical screen stereoscopic film real scene shooting that Fig. 2 provides for the embodiment of the present invention and the system that three-dimensional virtual scene combines.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
It is a complicated process that spherical screen stereoscopic film real scene shooting and three-dimensional combine, need to consider relevant issues from early stage programming phase, careful selection capture apparatus, photographic schemes is designed on the basis of considering every possible angle, carry out d-making in strict accordance with size, strictly follow space reduction principle and carry out later stage synthesis.
Fig. 1 shows a kind of process flow diagram of spherical screen stereoscopic film real scene shooting that the embodiment of the present invention provides and the method that three-dimensional virtual scene combines, for convenience of description, illustrate only the part relevant to the embodiment of the present invention, the spherical screen stereoscopic film real scene shooting that the embodiment of the present invention provides and the method that three-dimensional virtual scene combines, described method comprises the steps:
Step S11, determines performer, spatial relationship between object and capture apparatus.
In the present embodiment, early stage, according to photographic schemes planning, is determined to take gimmick, mainly determines capture apparatus and several groups of physical shots, thus know the acquisition parameters of capture apparatus, comprising: focal length, camera aperture, resolution etc., such as stereoscopic shooting, need to determine the interpupillary distance between the camera lens of left and right.According to the performer space erect-position at the confirmation real scene shooting scene of the three-dimensional story playscript with stage directions, tentatively determine performer, object, and the spatial relationship between capture apparatus.Particularly, ensure that the picture perspective of shooting is consistent, real scene shooting scene needs to carry out initial erect-position and performance scope regulation to performer according to the three-dimensional story playscript with stage directions, simultaneously to the locus between stage property setting and capture apparatus and angle, article size, the position also will determined in strict accordance with the three-dimensional story playscript with stage directions is put.
Step S12, the movement locus of track up equipment.
In the present embodiment, also need to paste trace labelling point to motion camera lens, the camera motion track of convenient rediscover in three-dimensional camera.The movement locus of described track up equipment, is specially: paste trace labelling point to motion camera lens, obtains the sequence image of motion camera lens real scene shooting; According to described sequence image, obtain the movement locus of capture apparatus.
In the present embodiment, need first to follow the tracks of the movement locus of capture apparatus, process the real scene shooting sequence image of motion camera lens, adjustment camera focus, egative film size, frame per second, trace point, obtains the movement locus of capture apparatus.
Step S13, according to the acquisition parameters of capture apparatus, performer, spatial relationship between object and capture apparatus, and the movement locus of capture apparatus, make corresponding three-dimensional camera, and make virtual scene by three-dimensional camera.
Further, in order to realize the space size seen by three-dimensional camera, object composition, transparent effect will with real scene shooting capture apparatus see completely the same, when making corresponding three-dimensional camera, require stage property and role's style realistic, size and in perspective, locus is put rationally, and the size of model pinup picture also will be consistent with truth.The described step making corresponding three-dimensional camera, is specially: according to the acquisition parameters of capture apparatus, calculates the degree of depth of actual video; According to the described degree of depth, obtain aberration.
Further, the degree of depth of described calculating actual video, is specially: according to bottom panel width K, imaging surface distance H, picture traverse W, obtain the degree of depth
describedly obtain aberration according to the described degree of depth, be specially: by the degree of depth
obtained by similar triangle theory conversion: aberration
wherein, E is interpupillary distance, H is imaging surface distance, W is picture traverse, K is bottom panel width, α is camera lens subtended angle, W is picture traverse, P is aberration.
Step S14, the virtual scene that the actual video take capture apparatus and three-dimensional camera make combines according to space reduction principle.
In the present embodiment, actual video mates with virtual scene convergent-divergent and should carry out being patterned into benchmark to the cutting of real scene shooting picture or convergent-divergent with three-dimensional in same imaging surface distance according under real scene shooting and three-dimensional camera lens different focal, ensures real space aberration relation simultaneously.
In the present embodiment, the motion path of correct reduction capture apparatus and attitude inside three-dimensional software, it is a very important factor affecting synthetic effect, its key is spatial match, makes the perspective of actual situation two kinds of elements, the degree of depth, space angle is completely the same, make actual video and virtual image obtain same aberration at actual situation junction point, and make actual situation two objects be in same position in picture, have same perspective.
Fig. 2 shows a kind of structural representation of the system that spherical screen stereoscopic film real scene shooting for the embodiment of the present invention provides and three-dimensional virtual scene combine, for convenience of description, illustrate only the part relevant to the embodiment of the present invention, the spherical screen stereoscopic film real scene shooting that the embodiment of the present invention provides and the system that three-dimensional virtual scene combines, described system comprises: spatial relationship determining unit 21, tracing of the movement unit 22, three-dimensional production unit 23 and actual situation combining unit 24.
Particularly, spatial relationship determining unit 21 is for determining performer, spatial relationship between object and capture apparatus; Tracing of the movement unit 22 is for the movement locus of track up equipment; Three-dimensional production unit 23 is for the acquisition parameters of camera according to capture apparatus, and the movement locus of performer, spatial relationship between object and capture apparatus and capture apparatus, makes corresponding three-dimensional camera, and make virtual scene by three-dimensional camera; The virtual scene that actual situation combining unit 24 makes for the actual video taken by capture apparatus and three-dimensional camera combines according to space reduction principle.
Wherein, the described three-dimensional camera making correspondence, is specially: according to the acquisition parameters of capture apparatus, calculates the degree of depth of actual video; According to the described degree of depth, obtain aberration.Particularly, the degree of depth of described calculating actual video, is specially: according to bottom panel width K, imaging surface distance H, picture traverse W, obtain the degree of depth
describedly obtain aberration according to the described degree of depth, be specially: by the degree of depth
obtained by similar triangle theory conversion: aberration
wherein, E is interpupillary distance, H is imaging surface distance, W is picture traverse, K is bottom panel width, α is camera lens subtended angle, W is picture traverse, P is aberration.
In the present embodiment, the movement locus of described track up equipment, is specially: paste trace labelling point to motion camera lens, obtains the sequence image of motion camera lens real scene shooting; According to described sequence image, obtain the movement locus of capture apparatus.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention; make some equivalent alternative or obvious modification without departing from the inventive concept of the premise; and performance or purposes identical, all should be considered as belonging to the scope of patent protection that the present invention is determined by submitted to claims.
Claims (10)
1. the method for spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene combination, it is characterized in that, described method comprises the steps:
Determine performer, spatial relationship between object and capture apparatus;
The movement locus of track up equipment;
According to the acquisition parameters of capture apparatus, performer, spatial relationship between object and capture apparatus, and the movement locus of capture apparatus, make corresponding three-dimensional camera, and make virtual scene by three-dimensional camera;
The virtual scene that the actual video take capture apparatus and three-dimensional camera make combines according to space reduction principle.
2. the method for spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene combination as claimed in claim 1, is characterized in that, the described step making corresponding three-dimensional camera, is specially:
According to the acquisition parameters of capture apparatus, calculate the degree of depth of actual video;
According to the described degree of depth, obtain aberration.
3. the method for spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene combination as claimed in claim 2, it is characterized in that, the degree of depth of described calculating actual video, is specially:
According to bottom panel width K, imaging surface distance H, picture traverse W, obtain the degree of depth
4. the method that combines of spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene as claimed in claim 2, is characterized in that, describedly obtains aberration according to the described degree of depth, is specially:
By the degree of depth
obtained by similar triangle theory conversion: aberration
wherein, E is interpupillary distance, H is imaging surface distance, W is picture traverse, K is bottom panel width, α is camera lens subtended angle, W is picture traverse, P is aberration.
5. the method for spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene combination as claimed in claim 1, it is characterized in that, the movement locus of described track up equipment, is specially:
Trace labelling point is pasted to motion camera lens, obtains the sequence image of motion camera lens real scene shooting;
According to described sequence image, obtain the movement locus of capture apparatus.
6. the system of spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene combination, it is characterized in that, described system comprises:
Spatial relationship determining unit, for determining performer, spatial relationship between object and capture apparatus;
Tracing of the movement unit, for the movement locus of track up equipment;
Three-dimensional production unit, for the acquisition parameters of camera according to capture apparatus, performer, spatial relationship between object and capture apparatus, and the movement locus of capture apparatus, make corresponding three-dimensional camera, and make virtual scene by three-dimensional camera;
Actual situation combining unit, the virtual scene made for the actual video taken by capture apparatus and three-dimensional camera combines according to space reduction principle.
7. the system of spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene combination as claimed in claim 6, is characterized in that, the described three-dimensional camera making correspondence, is specially: according to the acquisition parameters of capture apparatus, calculates the degree of depth of actual video; According to the described degree of depth, obtain aberration.
8. the system of spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene combination as claimed in claim 7, it is characterized in that, the degree of depth of described calculating actual video, is specially: according to bottom panel width K, imaging surface distance H, picture traverse W, obtain the degree of depth
9. the system that combines of spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene as claimed in claim 7, is characterized in that, describedly obtains aberration according to the described degree of depth, is specially: by the degree of depth
obtained by similar triangle theory conversion: aberration
wherein, E is interpupillary distance, H is imaging surface distance, W is picture traverse, K is bottom panel width, α is camera lens subtended angle, W is picture traverse, P is aberration.
10. the system of spherical screen stereoscopic film real scene shooting and three-dimensional virtual scene combination as claimed in claim 6, it is characterized in that, the movement locus of described track up equipment, is specially: paste trace labelling point to motion camera lens, obtains the sequence image of motion camera lens real scene shooting; According to described sequence image, obtain the movement locus of capture apparatus.
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| CN113989471A (en) * | 2021-12-27 | 2022-01-28 | 广州易道智慧信息科技有限公司 | Virtual lens manufacturing method and system in virtual machine vision system |
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Address after: The development of high-tech building a road in Shenzhen City Huaqiang Nanshan District science and technology of Guangdong province 518057 14 floor Patentee after: Huaqiang infante (Shenzhen) Film Co. Ltd. Address before: 14, 518000 floor, Huaqiang hi tech development building, Nanshan District science and technology, Shenzhen, Guangdong Patentee before: Shenzhen Hyvision Digital Film Inc. |
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