CN112954294A - Three-dimensional animation phantom display device and display method - Google Patents
Three-dimensional animation phantom display device and display method Download PDFInfo
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- CN112954294A CN112954294A CN202110146160.7A CN202110146160A CN112954294A CN 112954294 A CN112954294 A CN 112954294A CN 202110146160 A CN202110146160 A CN 202110146160A CN 112954294 A CN112954294 A CN 112954294A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000003384 imaging method Methods 0.000 claims abstract description 32
- 230000000007 visual effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 235000002566 Capsicum Nutrition 0.000 description 1
- 239000006002 Pepper Substances 0.000 description 1
- 235000016761 Piper aduncum Nutrition 0.000 description 1
- 235000017804 Piper guineense Nutrition 0.000 description 1
- 244000203593 Piper nigrum Species 0.000 description 1
- 235000008184 Piper nigrum Nutrition 0.000 description 1
- 238000001093 holography Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/363—Image reproducers using image projection screens
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Abstract
The invention discloses a three-dimensional animation phantom display device and a display method, wherein the device comprises: the video projection source is used for generating a main view projection source animation, a rear view projection source animation, a left view projection source animation and a right view projection source animation which are related to the same three-dimensional animation role; the LED display screen is used for projecting the main-view projection source animation, the rear-view projection source animation, the left-view projection source animation and the right-view projection source animation into the same imaging space; the imaging space is used for converging the main-view projection source animation, the rear-view projection source animation, the left-view projection source animation and the right-view projection source animation to the same imaging position to form a three-dimensional image with a real dimension space; and the projection bracket is used for fixing the LED display screen and the imaging space. The three-dimensional animation phantom display device provided by the invention has the advantages of simple structure and low use cost, and can realize high-resolution and high-contrast three-dimensional animation holographic presentation only by using intelligent terminals such as a tablet personal computer, a mobile phone and the like and by utilizing a Peber phantom technology.
Description
Technical Field
The invention relates to the technical field of 3D pseudo holography, in particular to a three-dimensional animation phantom display device and a display method.
Background
Pepper's Ghost is an optical illusion technique invented by Hen-ry Dircks. The first time that the 19 th century, the english person, john poeber, showed this technology to the audience, was thus named the poeber illusion.
The virtual reality industry is believed to be one of the major growth points of the Chinese economy, and even the world economy, in the near future. A plurality of powerful IT enterprises at home and abroad participate in the research and development of the products in various ways. In 2010, japan world jia corporation sponsored a concert entitled "thank you for sacrifice on future day 39", and the sponsor utilized the peber phantom technology to project a virtual cartoon character "the first note future" onto the stage in the form of a holographic projection. The singing can make the 'initial sound future' become the first virtual idol of a concert held by holographic projection technology in the world. Thereafter, the pbell phantom is used many times in large political gatherings, artistic colleagues, etc. to present the effect of virtual reality. The structure of the generation device of the Peber phantom is simpler than that of a holographic projection device, but the device is large in size, unstable in imaging effect and easy to be interfered by the external environment, so that the generation device of the Peber phantom cannot be put into the mass market at present.
Disclosure of Invention
The invention aims to provide a low-cost and small-volume three-dimensional animation display device, which realizes high-resolution and high-contrast three-dimensional holographic animation presentation by utilizing a Peber phantom technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
there is provided a three-dimensional animated illusion display device comprising:
the video projection source is used for generating three-dimensional animation role projection source animations, four projection source animations are associated with the three-dimensional animation roles and respectively comprise a main view projection source animation acquired from a main view angle of the three-dimensional animation role, a rear view projection source animation acquired from a rear view angle of the three-dimensional animation role, a left view projection source animation acquired from a left view angle of the three-dimensional animation role and a right view projection source animation acquired from a right view angle of the three-dimensional animation role;
the LED display screen is used for projecting the main-view projection source animation, the rear-view projection source animation, the left-view projection source animation and the right-view projection source animation into the same imaging space;
the imaging space is used for converging the main-view projection source animation, the rear-view projection source animation, the left-view projection source animation and the right-view projection source animation to the same imaging position to form a three-dimensional image with a real dimension space;
and the projection bracket is used for fixing the LED display screen and the imaging space.
As a preferable scheme of the invention, the projection source animation generated by the video projection source is synthesized by a holographic image sequence frame, and the holographic image is in a TGA image format or a PNG image format.
As a preferable scheme of the present invention, the main view projection source animation, the rear view projection source animation, the left view projection source animation, and the right view projection source animation that are played on the LED display screen are arranged at equal intervals along a circumferential direction with a screen center point of the LED display screen as a center.
As a preferable scheme of the present invention, the imaging space is a regular rectangular pyramid, four triangular surfaces of the regular rectangular pyramid are covered with holographic films, and each of the triangular surfaces converges a projection source animation projected by the holographic films to the same imaging position to form the stereoscopic image with a real dimensional space.
In a preferred embodiment of the present invention, the height of the regular rectangular pyramid is 1 to 1.5 times the height of the three-dimensional animated character.
In a preferred embodiment of the present invention, the side length of the regular rectangular pyramid is 2 times the height of the pyramid.
As a preferable aspect of the present invention, the vertex of the regular rectangular pyramid is close to the center point of the LED display screen, and the base of the regular rectangular pyramid is far away from the center point of the LED display screen.
As a preferable aspect of the present invention, each of the triangular faces of the regular rectangular pyramid forms an angle of 45 ° with a screen surface of the LED display screen.
The invention also provides a three-dimensional animation phantom display method, which comprises the following specific steps:
1) respectively arranging a camera in four directions of front, back, left and right of the three-dimensional animation character by taking the three-dimensional animation character as a central point, wherein the four cameras are arranged at equal intervals along the circumferential direction;
2) the four cameras collect and store animation videos of the same three-dimensional animation role from four directions, namely front, back, left and right;
3) adding the four animation videos to an LED display screen for playing according to a video shooting visual angle, wherein the four animation videos are added to the LED display screen at equal intervals along the circumferential direction by taking the central point of the LED display screen as the center;
4) the LED display screen respectively projects each animation video onto one triangular surface of the same regular rectangular pyramid, and the holographic film covering each triangular surface converges the projected animation to the same imaging position to form a three-dimensional image with a real dimension space.
As a preferred scheme of the invention, the animation video is synthesized by a holographic image sequence frame, and the holographic image is in a TGA image format or a PNG image format;
the height of the regular rectangular pyramid is 1-1.5 times of the height of the three-dimensional animation character;
the side length of the regular rectangular pyramid is 2 times of the height of the pyramid;
the vertex of the regular rectangular pyramid is close to the central point of the LED display screen, and the bottom of the regular rectangular pyramid is far away from the central point of the LED display screen;
each triangular surface of the regular rectangular pyramid forms an angle of 45 degrees with the screen surface of the LED display screen.
The three-dimensional animation phantom display device provided by the invention has the advantages of simple structure and low use cost, can realize high-resolution and high-contrast three-dimensional animation holographic presentation only by intelligent terminals such as a tablet personal computer, a mobile phone and the like and by utilizing the Peber phantom technology, expands the application scene of the Peber phantom technology, and is beneficial to promoting the miniaturization development of the Peber phantom technology to application equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic structural diagram of a three-dimensional animated illusion display device according to an embodiment of the invention;
fig. 2 is a diagram of implementation steps of a three-dimensional animation phantom display method according to an embodiment of the invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the invention provides a three-dimensional animation phantom display device which has small volume and stable imaging effect and is not easily interfered by external light environment, and as shown in figure 1, the three-dimensional animation phantom display device comprises:
the video projection source is used for generating projection source animation of the three-dimensional animation role; in this embodiment, four projection source animations are associated with the same three-dimensional animation character, and each projection source animation is formed by shooting a video of a camera from a specified direction for solving the three-dimensional animation. In order to facilitate subsequent three-dimensional imaging, the four cameras are arranged at equal intervals along the circumferential direction by taking the three-dimensional animation role as a central point, and animation videos are collected and stored from the main visual angle, the rear visual angle, the left visual angle and the right visual angle of the three-dimensional animation role respectively;
the LED display screen is used for projecting the main-view projection source animation, the rear-view projection source animation, the left-view projection source animation and the right-view projection source animation into the same imaging space at the same time;
the imaging space is used for converging the main-view projection source animation, the rear-view projection source animation, the left-view projection source animation and the right-view projection source animation to the same imaging point to form a three-dimensional image with a real dimension space;
and the projection bracket is used for fixing the LED display screen and the imaging space.
In order to improve the definition of the stereoscopic image, the projection source animation (the main view projection source animation, the rear view projection source animation, the left view projection source animation, and the right view projection source animation) generated by the video projection source is preferably frame-synthesized from the hologram image sequence. More preferably, the image format of the holographic image is a TGA image format or a PNG image format, and the two image formats have color attributes, which is beneficial to improving the projection effect of the video animation.
In order to facilitate convergence of the main-view projection source animation, the rear-view projection source animation, the left-view projection source animation and the right-view projection source animation in the imaging space to form a stereoscopic image, preferably, the main-view projection source animation, the rear-view projection source animation, the left-view projection source animation and the right-view projection source animation which are played on the LED display screen are arranged at equal intervals along the circumferential direction with the screen center of the LED display screen as the center.
In this embodiment, the imaging space is a regular rectangular pyramid formed by bonding PVC transparent sheets. The Peber phantom imaging utilizes the reflection and refraction principles of light to converge the animations projected at different angles to the same imaging point, in order to increase the convergence effect, preferably, the four triangular surfaces of the regular rectangular pyramid are all covered with holographic films, the four projection source animations are respectively projected onto the corresponding triangular surfaces, and the holographic films on the triangular surfaces converge the projected projection source animations to the same imaging position to form a three-dimensional image with a real dimension space.
In order to prevent the distortion of the stereo image, the height of the regular rectangular pyramid is preferably 1 to 1.5 times of the height of the three-dimensional animation character after multiple experimental summaries; the side length of a regular rectangular pyramid is 2 times its cone height.
Each triangular surface of the regular rectangular pyramid forms an angle of 45 degrees with the screen surface of the LED display screen. The vertex of the regular rectangular pyramid is close to the central point of the LED display screen, and the bottom of the regular rectangular pyramid is far away from the central point of the LED display screen.
An embodiment of the present invention further provides a three-dimensional animation phantom display method, as shown in fig. 2, the phantom display method specifically includes:
step 1) taking a three-dimensional animation character as a central point, respectively arranging a camera in four directions of the three-dimensional animation character, namely the front direction, the rear direction, the left direction and the right direction, and arranging the four cameras at equal intervals along the circumferential direction;
step 2) four cameras collect animation videos of the same three-dimensional animation role from four directions of front, back, left and right and store the animation videos;
step 3) adding the four animation videos to an LED display screen for playing according to the video shooting visual angle; in order to ensure the stereoscopic imaging effect, preferably, four animation videos are added on the LED display screen at equal intervals in the circumferential direction with the center point of the LED display screen as the center;
and 4) respectively projecting each animation video to one triangular surface of the same regular rectangular pyramid by the LED display screen, and converging the projected animation to the same imaging position by the holographic film covered on each triangular surface to form a three-dimensional image with a real dimension space.
Preferably, the animation video is synthesized by holographic image sequence frames, namely, the camera collects the holographic image sequence frames of the three-dimensional animation character and synthesizes the holographic image sequence frames into the animation video. In order to ensure the projection effect of the stereoscopic image, the holographic image is more preferably in a TGA image format or a PNG image format.
In order to ensure that the three-dimensional animated character is not distorted after being projected, the height of the regular rectangular pyramid is preferably 1-1.5 times the height of the three-dimensional animated character.
In order to improve the convergence effect of the stereoscopic image, the side length of the regular rectangular pyramid is preferably 2 times the height of the pyramid.
The vertex of the regular rectangular pyramid is close to the central point of the LED display screen, and the bottom of the regular rectangular pyramid is far away from the central point of the LED display screen. Each triangular surface of the regular rectangular pyramid and the screen surface of the LED display screen preferably form an angle of 45 degrees, and the convergence effect of the stereoscopic images can be further ensured.
In conclusion, the three-dimensional animation phantom display device provided by the invention has the advantages of simple structure and low use cost, can realize high-resolution and high-contrast three-dimensional animation holographic presentation only through intelligent terminals such as a tablet personal computer, a mobile phone and the like and by utilizing the Peber phantom technology, expands the application scene of the Peber phantom technology, and is beneficial to promoting the miniaturization development of the Peber phantom technology to application equipment.
It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.
Claims (10)
1. A three-dimensional animated illusion display device comprising:
the video projection source is used for generating three-dimensional animation role projection source animations, four projection source animations are associated with the three-dimensional animation roles and respectively comprise a main view projection source animation acquired from a main view angle of the three-dimensional animation role, a rear view projection source animation acquired from a rear view angle of the three-dimensional animation role, a left view projection source animation acquired from a left view angle of the three-dimensional animation role and a right view projection source animation acquired from a right view angle of the three-dimensional animation role;
the LED display screen is used for projecting the main-view projection source animation, the rear-view projection source animation, the left-view projection source animation and the right-view projection source animation into the same imaging space;
the imaging space is used for converging the main-view projection source animation, the rear-view projection source animation, the left-view projection source animation and the right-view projection source animation to the same imaging position to form a three-dimensional image with a real dimension space;
and the projection bracket is used for fixing the LED display screen and the imaging space.
2. A three-dimensional animated phantom display device according to claim 1, characterized in that the source animation generated by the video projection source is frame-synthesized from a sequence of holographic images, said holographic images being in TGA image format or PNG image format.
3. The three-dimensional animated phantom display apparatus according to claim 1, wherein the main view projection source animation, the rear view projection source animation, the left view projection source animation and the right view projection source animation played on the LED display screen are centered on a screen center point of the LED display screen and are arranged at equal intervals from each other in a circumferential direction.
4. The three-dimensional animation illusion display device of claim 1, wherein the imaging space is a regular rectangular pyramid, four triangular faces of the regular rectangular pyramid are covered with holographic films, and each triangular face converges a projected source animation projected through the holographic films to the same imaging position to form the stereoscopic image with real dimensional space.
5. The three-dimensional animated phantom display apparatus according to claim 4, wherein the regular rectangular pyramid has a cone height 1-1.5 times the height of the three-dimensional animated character.
6. A three-dimensional animated phantom display device according to claim 5, characterized in that the side length of said regular rectangular pyramid is 2 times its cone height.
7. The three-dimensional animated phantom display device according to claim 4, wherein the vertex of the regular rectangular pyramid is close to the center point of the LED display screen and the base of the pyramid is far from the center point of the LED display screen.
8. The three-dimensional animated illusion display of claim 4 wherein each of the triangular faces of the regular rectangular pyramid is at a 45 ° angle to the screen surface of the LED display screen.
9. A three-dimensional animation phantom display method is characterized by comprising the following specific steps:
1) respectively arranging a camera in four directions of front, back, left and right of the three-dimensional animation character by taking the three-dimensional animation character as a central point, wherein the four cameras are arranged at equal intervals along the circumferential direction;
2) the four cameras collect and store animation videos of the same three-dimensional animation role from four directions, namely front, back, left and right;
3) adding the four animation videos to an LED display screen for playing according to a video shooting visual angle, wherein the four animation videos are added to the LED display screen at equal intervals along the circumferential direction by taking the central point of the LED display screen as the center;
4) the LED display screen respectively projects each animation video onto one triangular surface of the same regular rectangular pyramid, and the holographic film covering each triangular surface converges the projected animation to the same imaging position to form a three-dimensional image with a real dimension space.
10. The method of displaying a three-dimensional animated phantom according to claim 9, wherein the animated video is composed of a sequence of frames of holographic images, the holographic images being in TGA image format or PNG image format;
the height of the regular rectangular pyramid is 1-1.5 times of the height of the three-dimensional animation character;
the side length of the regular rectangular pyramid is 2 times of the height of the pyramid;
the vertex of the regular rectangular pyramid is close to the central point of the LED display screen, and the bottom of the regular rectangular pyramid is far away from the central point of the LED display screen;
each triangular surface of the regular rectangular pyramid forms an angle of 45 degrees with the screen surface of the LED display screen.
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