JP2009216958A - Three-dimensional display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a three-dimensional display by which the inside of an object that has been hardly observed hitherto is easily and exactly observed. <P>SOLUTION: In the three-dimensional display 1, a screen object 3 is constituted of two components 3a and 3b which can be divided and reassembled. When the screen object 3 is disassembled and the surface of the component included therein until then is newly exposed to projection space 6 of an image projection means, an image data-generating means newly generates an image to display the inside of a virtual object projected before disassembling the screen object in order to project the image on the surface. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a three-dimensional display device that projects and displays an image on a movable screen object having a three-dimensional shape by projection means such as a projector.

Non-Patent Document 1 discloses a three-dimensional display device that projects and displays an image related to a real object on a screen object that imitates the real object. A typical example of an image displayed by the 3D display device of Non-Patent Document 1 is an image representing the inside of an actual object imitated by a screen object. When such an image is projected, a virtual object is embedded in the real object, and a visual effect can be produced as if the real object is transparent and the inside is observed. For example, by projecting an image of the internal organs on the surface of the mannequin and changing the internal organ image to be projected so as to follow the movement and rotation of the mannequin, the mannequin is transparent and the internal organs are observed from various directions. It is possible to perform such display.
Daisuke Kondo, Toshiyuki Goto, Makoto Kouno, Ryugo Kijima and Yuzo Takahashi, "A Virtual Anatomical Torso for Medical Education using Free From Image Projection", Procs of the Tenth International Conference on VSMM 2004, pp678-685.

  The three-dimensional display device described in Non-Patent Document 1 stores precise shape data of a screen object. Then, the viewpoint position of the observer of the image, the position and orientation of the projection means, and the position and orientation of the screen object are measured as needed, and an image that takes into account motion parallax and binocular parallax by performing numerical calculations using the measurement results Is generated. Specifically, a special virtual space is defined, and in the virtual space, the viewpoint position and the projector position in the real space are exchanged, and the inverse transformation of each perspective projection transformation is sequentially performed, so that the screen object and An image of the integrated virtual object is generated, and this image is projected. The observer of the image can observe the screen object and the virtual object at the same time, and can intuitively know the positional relationship, the depth from the surface, the size of the internal object, and the like.

  The three-dimensional display device of Non-Patent Document 1 is an excellent device that can easily grasp an entire image of a real object imitated by a screen object. However, in the three-dimensional display device of Non-Patent Document 1, when performing detailed observation of a specific cross section of a real object, or when observing the innermost part of a structure assembled by a plurality of parts, The relevance between the screen object and the image of the virtual object is low, and the visual effect may be insufficient. In other words, when the image of the cross-section of the real object and the image of the innermost part are switched and displayed on the conventional screen object having a pre-defined shape, the positional relationship between the screen object and the image of the virtual object It may be difficult to understand the relevance of.

  Conventionally, in order to observe an image of a specific part in more detail, a method of specifying an observation position on the image with an input means such as a mouse or a keyboard and displaying it on another display is known. However, even if such a method is applied to the three-dimensional display device disclosed in Non-Patent Document 1, the one-to-one correspondence between the screen object and the virtual object image is lost as described above. It was difficult to obtain a visual effect.

  The present invention has been made to solve the above problems, and is particularly suitable for detailed observation of a cross section of a specific object and observation of the innermost part of a structure assembled by a plurality of parts. It is an object of the present invention to provide a three-dimensional display device that can easily and accurately observe the inside of an object that has been difficult to observe.

  The present invention relates to a three-dimensional display device that projects and displays an image on a screen object having a three-dimensional shape. The three-dimensional display device of the present invention inputs image data generating means for generating image data to be projected on a screen object, image projecting means for projecting image data generated by the image data generating means, and image data generating means. A position and orientation sensor for measuring the position and orientation of the screen object. The screen object of the three-dimensional display device is composed of a plurality of parts and can be disassembled and reassembled. Further, the image data generation means calculates the position and orientation of the part of the screen object based on the input data from the position and orientation sensor, and the surface of the part that has been contained so far by image decomposition is projected on the image. When it is recognized that the image is newly exposed in the projection space of the means, an internal image of the object displayed by the image projected on the screen object before decomposition is generated at the position of the surface of the newly exposed part. . The generated image is projected onto the screen object by the image projecting means.

  The three-dimensional display device of the present invention is configured such that the screen object can be divided and reassembled. When the screen object is disassembled and the surface of the part previously contained is newly exposed in the projection space of the image projection means, the image data generation means is adapted to project the screen image to this surface. An image that newly displays the inside of the object represented by the image projected before the decomposition is generated. When the image projecting means projects this newly generated image onto a new surface of the screen object, the visual effect is as if the object is disassembled and a virtual object is embedded in the screen object. Obtainable.

  The present invention is characterized in that a plurality of parts constituting the screen object are connected by a hinge. By connecting the parts and restricting their movement, the operability is improved, there is no risk of losing individual parts, and reassembly is easy.

  The present invention is characterized in that an angle sensor is attached to a hinge arrangement portion in which parts of a screen object are connected by a hinge. The image data generation means can receive the input from the angle sensor and grasp the relative positional relationship between the components. As a result, it is possible to further reduce the number of position and orientation sensors fixed to the screen object in order to detect the positions and orientations of all parts of the screen object.

  In the three-dimensional display device of the present invention, one screen object is constituted by a plurality of parts, and a position and orientation sensor is attached to each of these parts. The image data generating means generates an image corresponding to the removal of the component. That is, the image data generation means of the present invention displays the entire real object imitated by one screen object before disassembly, and when the part is removed, the corresponding part is removed from the real object. Generating an image in a rendered state.

  The three-dimensional display device according to the present invention is characterized in that the image data generating means generates a fixed image fixed at a predetermined position in the real space, and generates an image according to the decomposition position of the screen object. .

  The image data generation means of the present invention normally generates an image that is fixed at a predetermined position in the real space. The entire virtual object embedded in the screen object can be observed by arranging the screen object before decomposition in the fixed image projection space and projecting the image. When the screen object on which the image is projected is decomposed, the image data generation means recognizes the decomposition of the screen object by the input from the position and orientation sensor, and the virtual object is decomposed according to the decomposition position of the screen object. Is generated. The observer moves the screen object in the projection space of the image by his / her own operation, and disassembles the screen object at the position where the inside of the virtual object is to be displayed, thereby projecting a detailed internal image onto the screen object. Can be observed.

  The image data generation means of the present invention generates a moving image that moves following the position of the screen object, and generates an image according to the decomposition position of the screen object.

  The three-dimensional display device of the present invention includes switch means for switching whether the image generated by the image data generation means is fixed at a predetermined position in the real space or moves following the position of the screen object. It is characterized by that.

  By using the switch means of the present invention, it is possible to select whether the image is fixed in real space or following the movement of the screen object, and the positional relationship between the screen object and the image is more easily observed. It is possible to disassemble the screen object and observe the inside in a state in which is adjusted.

  When the screen object is decomposed, the three-dimensional display device of the present invention newly generates and projects an image displaying the internal structure of the image projected before the decomposition on the surface exposed by the decomposition. Can do. By projecting a new image, it is possible to obtain a visual effect as if a virtual object by the image is embedded in the decomposed screen object and its cross section is displayed. The observer can intuitively recognize the relationship between the shape before the decomposition of the real object and the virtual object imitated by the new image, making it easy to understand the internal structure of the real object and the virtual object It becomes possible to deepen.

  With the three-dimensional display device of the present invention, the observer moves the screen object in the projection space of the image projected in a fixed state in the real space, and disassembles the screen object at the position selected by the observer. Thus, an internal image corresponding to a cross section at an arbitrary position of the real object can be projected on the screen object and observed in three dimensions.

  The three-dimensional display device of the present invention can generate an image corresponding to the removal of a part on a screen object that imitates one structure composed of a plurality of parts. The observer is a detailed process of assembling and disassembling the structure while maintaining a sufficient relationship between the screen object simulating the shape of the structure and the image that displays the detailed structure of the parts of the structure. Can be visually confirmed, and the detailed configuration of the innermost part of the structure can be easily observed.

(First Embodiment) Hereinafter, an embodiment of the three-dimensional display device 1 of the present invention will be described in detail with reference to the drawings. In the present embodiment, an image representing a full-size internal organ, which is a virtual object, is used by using a combination screen 3 composed of two hemispherical parts 3a and 3b having the same shape that can be disassembled and reassembled. The three-dimensional display device 1 that projects and displays data will be described in detail.

  FIG. 1 schematically shows a configuration of a three-dimensional display device 1 according to the present embodiment. The three-dimensional display device 1 in this embodiment includes a projector 2 and a combination screen 3. The data of the internal image projected by the projector 2 is supplied from image data generating means stored in the form of a program that can be executed in the storage device of the connected computer 9.

  The image data generation means in the computer 9 stores in advance data on the precise surface shape of the parts 3a and 3b constituting the combination screen 3 and the volume data of the internal organs to be projected. The internal volume data is composed of three-dimensional coordinates and color information for each coordinate. The volume data is created with an accuracy capable of displaying the size of a full-scale internal organ when the resolution at the center of the visual field is projected at 1 mm.

  Connected to the computer 9 are a screen position and orientation sensor 10 connected to each of the components 3a and 3b, and a viewpoint position sensor 12 for measuring the viewpoint position of the observer. The viewpoint position sensor 12 and the screen position / orientation sensor 10 are sensors using magnetism having the same specifications, and measure the magnetic force generated by the magnetic field generation source 14 to measure and output the position of 6 degrees of freedom. To do. The position measurement data output by the viewpoint position sensor 12 and the screen position / orientation sensor 10 are respectively input to the computer 9 and used for calculation by the image data generation means. The viewpoint position sensor 12 is fixed to the observer's head during image projection.

  The screen position / orientation sensor 10 is accurately fixed at a predetermined position of the parts 3a and 3b. Based on the position and orientation information output from the screen position and orientation sensor 10, the image data generation means calculates the exact position and orientation of the components 3a and 3b in the space. If the calculated position of the plane portion 4a (described in FIG. 3) of the component 3a and the position of the plane portion 4b (described in FIG. 3) of the component 3b are spatially coincident, the image data generating means 3 recognizes that the flat surface portion 4a and the flat surface portion 4b are combined into one spherical shape having a bonding surface, and the flat surface portion is not exposed. On the other hand, when the positions of the plane portions 4a and 4b of the parts 3a and 3b are separated, the combination screen 3 is recognized as being disassembled.

  As shown in FIG. 2, when the image data generating means recognizes that the combination type screen 3 exists in the projection space 6 of the projection means 2 and the combination type screen 3 is combined, the component 3a , 3b, the internal outline image data 7 is generated based on the data corresponding to the outer surface of the built-in volume data stored in advance. The outline image data 7 has its distortion corrected by performing reverse transformation of the perspective projection transformation using the data of the viewpoint position sensor 12 and the position and orientation sensor 10, and the observer wearing the viewpoint sensor 12 can obtain the outline image data. By observing 7, it is possible to recognize a visceral image that looks stereoscopic without distortion. When the movement of the combination screen 3 is recognized by the position / orientation sensor 10, the outline image data 7 whose position is changed so as to follow the operation is generated, and the projection unit 2 projects the new outline image data 7. Continue to project into space.

  The image data generation means recognizes in advance the coordinate values of the outline image data 7 projected on the joint position between the component 3a and the component 3b. Furthermore, the cross-section creation position of the internal volume data corresponding to the outline image data 7 is recognized in advance. The image data generation means uses data obtained by extracting the built-in volume data at the cross-section creation position as an image to be projected onto the flat portions 4a and 4b of the parts 3a and 3b that have been divided and newly exposed.

  When the combination screen 3 is disassembled as shown in FIG. 3, the positions of the flat portions 4a and 4b of the parts 3a and 3b are separated from each other. When recognizing that the combination screen 3 is disassembled from the measurement data of the position output by the position and orientation sensor 10, the image data generation means, the sectional image data 8a to be projected onto the plane portion 4a newly exposed in the projection space, Cross-sectional image data 8b to be projected onto the plane portion 4b is generated.

  At the same time, when the hemispherical parts 5a and 5b of the component are located within the projectable range of the image, the image data generating means simultaneously generates the outline image data 7a and 7b to be projected on these parts. The outline image data 7a and 7b are generated by cutting and dividing the outline image data 7 at the joint portion between the component 3a and the component 3b. The projection unit 2 continues to project the cross-sectional image data 8a and 8b and the outline image data 7a and 7b generated by the image data generation unit on the projection space.

  When the disassembled parts 3a and 3b are reassembled, the positions of the plane part 4a of the part 3a and the plane part 4b of the part 3b spatially coincide with each other. Recognize that they are combined in a spherical shape. The image data generation unit generates the external shape image data 7 again, and the projection unit 2 projects this onto the projection space.

  The three-dimensional display device 1 according to the present embodiment can project internal images 7a and 7b and cross-sectional images 8a and 8b when the components 3a and 3b constituting the combination screen 3 are disassembled. . Thereby, it is possible to bring about a visual effect as if a full-size internal organ is cut and embedded in each of the parts 3a and 3b. By projecting the internal cross-sectional images 8a and 8b onto the planar portions 4a and 4b of the parts 3a and 3b, it is possible to observe in detail the internal images that were difficult to observe with a conventional three-dimensional display device. Become.

Second Example FIG. 4 shows a combination screen 15 used in the three-dimensional display device of this example. The combination type screen 15 includes parts 3a and 3b. A hinge 16 is provided between the components 3a and 3b, and a rotation sensor (not shown) is connected to the portion where the hinge 16 is disposed. The rotation sensor can output the angle of the component 3b with respect to the component 3a. The position / orientation sensor 10 is fixed only to the component 3a, and outputs an accurate position / orientation of the component 3a. Components having the same configuration as in the first embodiment are denoted by the same reference numerals and redundant description is omitted.

  The image data generation means of the present embodiment calculates the accurate position and orientation of the component 3a and the component 3b based on the input from the position and orientation sensor 10 attached to the component 3a and the input of the rotation sensor. The position / orientation sensor 10 can output an accurate position / orientation with six degrees of freedom, but is very expensive. However, the image data generation unit in this embodiment uses an angle instead of the one position / orientation sensor 10. By receiving the angle input from the sensor, it is possible to accurately grasp the relative positional relationship between the component 3a and the component 3b. That is, it is possible to further reduce the number of position and orientation sensors 10 used in the entire 3D display device.

  The combination type screen 15 of this embodiment is easy to operate because the parts 3a and 3b are connected by the hinge 16, and there is no risk of losing one of them, and reassembly is easy.

(Third Embodiment) The image data generating means in the three-dimensional display device of the present embodiment generates a virtual object to be projected on a combination screen. Whether the virtual object is fixed at a predetermined position in the real space or moves so as to follow the combination screen can be switched by an input from the outside. The three-dimensional display device according to the present embodiment includes a foot switch (not shown) as input means for switching between fixing and following the virtual object. In addition, as a means for recognizing disassembly and reassembly of the combination type screen, a contact sensor is provided in the plane portions 4a and 4b. About another structure, it is the same as that of 1st Example, attaches | subjects the same code | symbol and omits duplication description.

  The image data generation unit of the present embodiment generates a virtual object that moves according to the movement of the combination screen 3 immediately after activation. When a command for fixing the image is input from the foot switch, the virtual object is fixed at the projection position when the command is received. When receiving a command from the foot switch again, the image data generating means moves the virtual object by causing the image to follow the movement of the combination screen 3.

  The image data generation means can determine which part of the virtual object is in any situation when the virtual object is fixed in the real space and when the virtual object is moving following the combination screen 3. Whether the part 3a and the part 3b are joined is always calculated. When it is recognized by the output of the contact sensor that the combination type screen 3 has been disassembled, the position data of the joint corresponding portion of the virtual object calculated immediately before the disassembly is used, and The cross section is projected onto the plane part 4a and the plane part 4b newly exposed in the projection space.

  The three-dimensional display device of the present embodiment can select at any time whether the virtual object is fixed in the real space or moves following the movement of the screen 3 by an input means called a foot switch. Then, by disassembling the combination screen 3 in a state where a virtual object is projected, it is possible to display a cross-section of the internal organs at an arbitrary position on the plane portions 4a and 4b newly exposed to the projection space. is there. Since the virtual object can be moved and fixed, the position and orientation of the virtual object with respect to the combined screen 3 are set so that the virtual object projected when the combined screen 3 is disassembled is most easily observed. Fine adjustment is possible.

(Fourth Embodiment) FIG. 5 shows a combination type screen used in the three-dimensional display device of the present embodiment. The screen object 20 of this embodiment is configured by combining 27 congruent cubic parts 21 so that they can be disassembled and reassembled. Each component 21 has a built-in position / orientation sensor, and the image data generation means calculates the exact position of each of the 27 components by the position / orientation sensor.

  The image data generation means in this embodiment stores cell volume data in advance for projection onto the screen object 20. As shown in FIG. 5, when the screen object 20 is combined, the image data generating means creates enlarged cell outline image 22 data, and the projecting means 2 projects this. When a part of the component 21 is disassembled, the image data generating means generates the cross-sectional image data 23 indicating the inside of the cell corresponding to the position of the surface of the newly exposed component 21 as shown in FIG. Create and project this by the projection means.

Fifth Example FIG. 7 shows a combination screen used in the three-dimensional display device of this example. The screen object 30 of the present embodiment imitates the head of a substantially full-sized adult, and is composed of a plurality of parts 31 to 36 formed in a ring shape with the vertical direction of the head as the central axis. . The components 31 to 36 are rotatably connected to a shaft member 37 fixed to the projection space 6. A rotation sensor 38 is disposed at a connecting portion between the shaft member 37 and the parts 31 to 36, and detects which part of the parts 31 to 36 is rotated at what angle. .

  The image data generation means in the present embodiment stores in advance accurate shape data of the parts 31 to 36 of the screen object 30 and detailed volume data about the outer shape and the inside of the brain. When the plurality of components 31 to 36 are all combined to form an adult head, the image data generation unit generates a brain outline 39 as a virtual object to be superimposed on the screen object 30. The projection means 2 projects this. The projected virtual object is recognized as being embedded in the screen object 30 by the observer wearing the viewpoint sensor 12.

  The image data generation means calculates in advance a cross section corresponding to the joining position of the parts 31 to 36 in the virtual object. As shown in FIG. 8, when it is recognized by the output of the rotation sensor 38 that one of the components 31 to 36 is rotationally moved and the plane portion is newly exposed to the projection space, The data is extracted from the volume data at the cross-section creation position, and a brain cross-section 40 for projection onto the exposed plane portion is generated.

  In the present embodiment, the screen object 30 is connected to a shaft member 37 in which the components 31 to 36 are fixed to the projection space 6 in a rotatable state, and the displacement thereof is restricted. Since the screen object 30 does not fall apart, the operability is good, there is no risk of loss, and the components 31 to 36 can be easily assembled in their original positions simply by rotating 360 degrees around the shaft member 37. .

(6th Example) The combination type screen used for the three-dimensional display apparatus of a present Example is shown in FIG. The screen object 41 of the present embodiment mimics the shape of a vehicle engine. The part 42 has a shape imitating the outer cover of the engine, and can be disassembled and reassembled together with the crank 43 and the cylinder head 44 which are other parts. Position and orientation sensors are fixed to all the components including the components 42, 43, and 44, and data representing the position and orientation of each accurate component is output.

  The image data generation means in the present embodiment stores in advance accurate shape data of a large number of parts of the screen object 41 and accurate external surface image data of individual parts. The image data generation means in the present embodiment can generate an image according to the removal of individual parts. That is, before disassembling, the entire real object imitated by one screen object is displayed, and when a part is removed, an image with the corresponding part removed from the real object is generated. It is characterized by. FIG. 10 schematically shows an image generated by the image data generation means and projected by the projection means 2 for the remaining parts constituting the screen object 41 when the part 42 is removed. In this way, by disassembling the parts one by one, the observer imitated the shape and the corresponding parts when the engine parts imitated by the screen object 40 were removed one by one. Detailed images can be confirmed. Eventually, the innermost part of the engine can be visually confirmed.

(7th Example) The screen object 50 used for a present Example is shown in FIG.11, FIG.12, FIG.13. The screen object 50 of the present embodiment is configured by connecting specific sides of 64 square pyramids. The entire surface 52 of the screen object shown in FIG. 11 is included in FIG. 12, and an image completely different from the surface 52 is projected onto the newly exposed surface 53 of FIG. Furthermore, by removing the screen object 52 shown in FIG. 12 up and down, it can be disassembled into parts 50a and 50b, and the polygons shown in FIG. 13 are formed by assembling each of them after the division. A different image can be projected onto the polygon in FIG. 13 to enjoy the visual effect.

  As mentioned above, although the specific example of this invention was described in detail in the Example, these are only illustrations and do not limit a claim. The technology described in the claims includes various modifications and changes of the specific examples illustrated above. For example, the input means for switching whether the virtual object generated by the image data generation means is fixed at a predetermined position in the real space or to follow the movement of the screen object is not only a foot switch but also a screen object. A pressure switch placed on the surface can be used. The observer can switch between fixing and following the virtual object by pressurizing the screen after moving or rotating. In addition, the shape of the entire screen, the shape of the parts to be combined, and the type of virtual object imitated by the projected image can be arbitrarily selected.

  INDUSTRIAL APPLICABILITY The present invention can examine the internal configuration of other living organisms including the human body, and can be used in fields such as educational training and examination of surgical techniques. In addition to the above applications, the present invention can be applied to an article to be observed by associating the overall shape with an arbitrary cross-sectional shape or internal shape. Furthermore, for example, when a screen object is disassembled and reassembled by hand, it can be applied to an experiential game machine that enjoys projection of a new virtual object after reassembly.

It is a figure which shows typically the structure of the three-dimensional display apparatus 1 which concerns on a 1st present Example. It is a figure which shows the external shape image data 7 projected when the combination type screen 3 of 1st Example is combined. It is a figure which shows the external shape image data 7a and 7b and cross-sectional image data 8a and 8b which are projected when the combination type screen 3 of 1st Example is decomposed | disassembled. It is a figure which shows typically the structure of the combination type screen 15 used for the three-dimensional display apparatus of a 2nd Example. It is a figure which shows the external shape image 22 projected when the structure of the combination type screen 20 used for the three-dimensional display apparatus of a 4th Example and the screen 20 are combined. It is a figure which shows the cross-sectional image data 23 projected when the combination type screen 20 of the three-dimensional display apparatus of a 4th Example is decomposed | disassembled. It is a figure which shows the structure of the combination type screen 30 used for the three-dimensional display apparatus of a 5th Example, and the external shape image data 39 of the brain projected when the screen 30 is combined. It is a figure which shows the structure of the combination type screen 30 used for the three-dimensional display apparatus of a 5th Example, the external shape image data 39 of the brain projected when the screen 30 is decomposed | disassembled, and the cross-sectional data 40 of a brain. . It is a figure which shows typically the structure of the combination type screen 41 which imitated the engine used for the three-dimensional display apparatus of 6th Example, and the image projected there. It is a figure which shows typically the image projected when the components 42 are removed from the combination type screen 41 of 6th Example. In the combination type screen 50 of 7th Example, it is a figure which shows the state in which the surface 52 is exposed. In the combination type screen 50 of 7th Example, it is a figure which shows the state in which the surface 53 is exposed. In the combination type screen 50 of 7th Example, it is a figure which shows the state by which the screen was divided | segmented and components 50a and 50b were each assembled separately.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 3D display apparatus 2 Projection means 3, 15, 20, 30, 41, 50 Combination type screen 3a, 3b, 21, 31, 32, 33, 34, 35, 36, 42, 43, 44, 50a, 50b Parts 4a, 4b Plane portion 5a, 5b Spherical portion 6 Projection space 7, 22 Outline image data 8, 23 Cross-sectional image data 9 Computer 10 Screen position / orientation sensor 12 View point position sensor 14 Magnetic field generation source 16 Hinge 37 Shaft member 38 Rotation sensor 39 Brain The outline of the brain 40

Claims (7)

A three-dimensional display device that projects and displays an image on a screen object having a three-dimensional shape,
Image data generating means for generating image data to be projected onto the screen object;
Image projection means for projecting the image data generated by the image data generation means;
A position and orientation sensor that measures the position and orientation of the screen object for input to the image data generation means,
The screen object is composed of a plurality of parts and can be disassembled and reassembled,
The image data generation means calculates the position and orientation of the part of the screen object based on the input data from the position and orientation sensor, and the surface of the part that has been included so far by the decomposition of the screen object is the image. When it is recognized that it has been newly exposed in the projection space of the projection means, an internal image of the object displayed by the image projected before the decomposition is generated at the position of the surface of the newly exposed part,
The three-dimensional display device, wherein the image projecting unit projects an image according to the decomposition of the screen object.   The three-dimensional display device according to claim 1, wherein a plurality of parts constituting the screen object are connected by a hinge.   The three-dimensional display device according to claim 2, wherein an angle sensor is attached to the hinge arrangement portion. One screen object is composed of multiple parts,
The position and orientation sensor is attached to each component,
The three-dimensional display device according to claim 1, wherein the image data generation unit generates an image corresponding to the removal of the component. The image data generating means generates a fixed image fixed at a predetermined position in the real space,
The three-dimensional display device according to claim 1, wherein an image is generated according to a decomposition position of the screen object. The image data generation means generates a moving image that moves following the position of the screen object,
The three-dimensional display device according to claim 1, wherein an image is generated according to a decomposition position of the screen object.   6. A switch means for switching whether the image generated by the image data generation means is fixed at a predetermined position in the real space or moves following the position of the screen object. Or the three-dimensional display apparatus of 6.

Images