JP5759110B2 - Ferris wheel - Google Patents

Description

  The present invention relates to a ferris wheel.

  Conventionally, a ferris wheel installed in an amusement park or the like is known (for example, see Patent Document 1). This ferris wheel has a plurality of gondola provided at predetermined intervals along the rotating wheel, and slowly rotates the rotating wheel with a passenger on the gondola. Passengers in the gondola can enjoy the scenery that changes in appearance as they move slowly, and enjoy the view of the surroundings near the top.

  However, this conventional Ferris wheel was merely looking at the scenery that was actually visible outside the gondola, so some people felt bored. In particular, it was not interesting for those who were familiar with the land and those who once boarded it.

  By the way, in recent years, research on devices that present mixed reality (including augmented reality and augmented virtuality) that fuses real space and virtual space in real time has been active. (For example, refer to Patent Documents 2 and 3). The device that presents the mixed reality senses, for example, a real space by an imaging unit such as a camera, and generates a composite image by superimposing a virtual image on an image (real image) taken by the imaging unit. A composite image is output to the outside, and a mixed reality that combines a real image and a virtual image can be given to a user who has viewed the composite image. In the devices of Patent Documents 2 and 3, an image pickup unit is attached to a head mount display (HMD), and a composite image is generated by superimposing a virtual image on a real image taken by the image pickup unit in real time. The composite image is projected on the head mounted display. Therefore, when walking with the head-mounted display attached, a virtual image is displayed superimposed on the video according to the user's viewpoint, making it feel as if the virtual image exists in the real space. .

  However, if a user who simply walks and runs on the ground can only use a device that presents such a mixed reality, the user can experience mixed reality only within a range where the surrounding scenery can be seen from the ground. I couldn't.

JP 2007-167215 A JP 2008-293209 A JP 2008-275391 A

  The present invention has been made in view of the above circumstances, and its purpose is to make the presentation range of mixed reality not only a viewpoint from the ground but also a wider range, and The object is to provide a ferris wheel that provides fun that cannot be obtained simply by looking at the scenery.

  In order to solve the above problems, the ferris wheel of the present invention has the following configuration.

The present invention is a ferris wheel having a plurality of gondola 63. This ferris wheel is provided in each gondola 63 and detects the position of the imaging unit 1 that captures the actual scenery outside the gondola 63, the display unit 2 provided in each gondola 63, and the imaging unit 1. A position detection unit that outputs image capturing unit position information indicating the position of 1 and a virtual image deformed based on the image capturing unit position information, and the virtual image is generated at a predetermined position of the actual image captured by the image capturing unit 1 A control unit 3 is provided that generates a composite image by superimposing and displays the composite image on the display unit 2. The position detection unit includes a timer configured to measure an elapsed time from when the imaging unit 1 moves to a predetermined position, and the elapsed time measured by the timer and the movement of the gondola 63. The imaging unit position information obtained based on the speed is output to the control unit 3.

  With such a configuration, it is possible to give the passenger of the gondola 63 a mixed reality (including augmented reality and augmented virtual feeling) using a wide field of view visible from the gondola 63 of the ferris wheel. Moreover, since the gondola 63 constantly moves not only in the horizontal direction but also in the height direction, it is possible to give a mixed reality that cannot be obtained only from the viewpoint from the ground.

  In the ferris wheel of the present invention, the control unit 3 is a virtual unit that changes the size and angle of the storage unit 34 in which the virtual image is stored and the virtual image stored in the storage unit 34 according to the position of the gondola 63. An image deforming unit 36, an image composing unit 33 for generating a composite image by superimposing an image changed by the virtual image deforming unit 36 on a predetermined position of a real image taken by the image capturing unit 1, and an image composing unit. It is preferable to have an image display means 35 for displaying the image generated by 33 on the display unit.

  With this configuration, the virtual image can be deformed according to the movement of the gondola 63. As a result, the synthesized image can be made closer to the real one.

  The ferris wheel of the present invention further includes a position detection unit that detects the position of the imaging unit 1 and an imaging direction detection unit that detects the imaging direction of the imaging unit 1, and the virtual image deformation unit 36 includes a position detection unit. It is preferable that the virtual image is changed based on the detection information of the part and the detection information of the imaging direction detection part.

  According to such a configuration, the alignment between the real image and the virtual image can be performed with relatively high accuracy.

  In the ferris wheel of the present invention, the control unit 3 derives the marker recognition unit 30 that recognizes a specific object included in the actual image as a marker, and the position and orientation of the marker recognized by the marker recognition unit 30. A position / posture deriving unit 32; the storage unit 34 stores the virtual image in association with the marker in advance; and the virtual image deforming unit 36 is derived by the position / posture deriving unit 32. The virtual image is changed based on the position / posture information of the marker, and when the marker is recognized by the marker recognizing means 30, the control unit 3 transmits the virtual image corresponding to the marker from the storage unit 34. The acquired virtual image is changed by the virtual image deformation means 36, and the changed image is changed to a portion corresponding to the marker of the actual image by the image composition means 33. Superimposed to generate a composite image, it is preferable that to display the composite image on the display unit 2 by the image display unit 33.

  According to such a configuration, it is possible to improve the accuracy of alignment between the real image and the virtual image.

  Moreover, it is preferable that the virtual image is a computer graphics image imitating a landscape of an era different from the present.

  Thereby, for example, a past historical building in the land, a predicted view of the future, and the like can be superimposed on a real image to generate a composite image, and it can be interesting to the passenger of the gondola 63.

  In the ferris wheel of the present invention, a plurality of virtual images of different ages are stored in the storage unit 34, and each gondola 63 further includes a setting unit 52 that can be set to a landscape of an arbitrary era, and the control The unit 3 generates an image by acquiring a virtual image corresponding to the age set by the setting unit 52 from the storage unit 34 and superimposing it on the actual image, and the image display means 35 displays the composite image on the display unit 2. It is preferable to be displayed.

  Thereby, the scenery in the desired age of the passenger of the gondola 63 can be displayed on the display unit 2, and the passenger can be more interesting.

  The ferris wheel of the present invention is a camera in which the imaging unit 1 is provided outside the gondola 63 and the imaging direction can be changed. The gondola 63 further includes an operation unit 5 that changes the imaging direction of the camera. It is preferable to provide.

  As a result, it is possible to superimpose and display the real image and the virtual image at a desired viewpoint of the passenger of the gondola 63, and to give the passenger a mixed reality using a wider field of view.

  In the ferris wheel of the present invention, the display unit 2 may be provided in a head-mounted display device.

  According to the ferris wheel of the present invention, the range of presentation of mixed reality is not limited to the viewpoint from the ground, and it is not obtained by simply looking at the scenery from the gondola passenger. Interestingness can be imparted.

It is a block diagram which shows control of one Embodiment of this invention. It is the front view which showed the whole ferris wheel same as the above. It is the perspective view which showed the inside of the gondola same as the above. It is the perspective view which showed the inside of the gondola of other embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 2, the ferris wheel of the first embodiment is configured such that a pair of support legs 60 stands up and down from the installation surface G of the ferris wheel, and the upper ends of the pair of support legs 60. A rotary shaft 61 is installed horizontally between them. A rotating wheel 62 is pivotally supported on the rotating shaft 61, and the rotating wheel 62 is rotatable. The rotating wheel 62 is rotationally driven by a driving device (not shown) provided on the support leg 60. The rotating wheel 62 is a skeleton that is formed in a substantially circular shape, and a plurality of gondola 63 are suspended at predetermined intervals along the circumferential direction at an outer peripheral end portion thereof. Each gondola 63 suspended from the outer peripheral end of the rotating wheel 62 is rotatably attached to the rotating wheel 62 and always maintains a vertical posture regardless of the position around the rotating wheel 62. be able to. The rotation trajectory of each gondola 63 has a substantially circular trajectory shape. A boarding area 64 for a passenger to get on and off the gondola 63 is provided at the lower end portion of the rotation trajectory of the gondola 63.

  Each gondola 63 has a substantially circular outer shape when viewed from the front, and has a space for passengers to ride inside. Each gondola 63 is provided with an entrance / exit 65 through which a passenger can enter and exit, and a door 66 that can be opened and closed is provided at the entrance / exit 65. The gondola 63 has an image pickup unit 1 for picking up an image of the scenery (actual scenery) outside the gondola 63 at the lower part outside. The imaging unit 1 of the present embodiment is configured by, for example, a CCD (Charge Coupled Device) camera and attached to an imaging direction driving device (not shown), and the imaging direction is slightly downward from the horizontal direction. It can be changed to all directions (horizontal direction 360 °). The imaging unit 1 is connected to an operation unit 5 provided in the gondola 63 via a control unit 3 which will be described later. By operating the operation unit 5, the imaging direction can be changed. As shown in FIG. 3, the operation unit 5 is provided on the inner surface of the gondola 63 opposite to the entrance / exit 65, and is disposed adjacent to the display unit 2. The operation unit 5 has an operation lever 51 that can be tilted. By tilting the operation lever 51, the imaging direction of the imaging unit 1 is changed. The display unit 2 is composed of a monitor, and is arranged so that its display surface faces a portion where the face of the occupant is located by being slightly inclined upward. The display unit 2 is connected to the control unit 3 and is controlled by the control unit 3. The display unit 2 is provided in a substantially middle part of the pair of seats 67 arranged to face each other. A transmissive window 68 is attached to the gondola 63 above the seat 67, and a passenger can view an external scenery (actual scenery) through the transmissive window 68.

  The operation unit 5 is not limited to the one fixedly attached to the inner side surface of the gondola 63 as described above. As another example, for example, via an electric wiring disposed on the side of the display unit 2. An operation unit may be attached and the operation unit may be movable. Further, a receiving unit (not shown) may be newly provided on the inner surface of the gondola 63, and an operation unit having a transmission unit may be provided to operate the operation unit wirelessly.

  The control unit 3 is a part that generates a composite image by superimposing a virtual image on a specific object in the real image taken by the imaging unit 1 and displays the composite image on the display unit 2. . The control unit 3 generates a new image by superimposing a virtual image on the image (actual image) captured by the image capturing unit 1 and displays the image on the display unit 2, so-called mixed reality (augmented reality). (Including feeling and extended virtual feeling). The control unit 3 according to the present embodiment uses marker recognition type mixed reality technology that recognizes a specific object in a landscape as a marker and superimposes a virtual image on a portion corresponding to the marker. As shown in FIG. 1, the control unit 3 includes a marker recognition unit 30, a marker storage unit 31, a position / posture derivation unit 32, a virtual image deformation unit 36, a storage unit 34, and an image composition unit 33. The image display means 35 and a computer having a microprocessor as a main component. The computer of the control unit 3 of this embodiment is stored in the seat 67 of each gondola 63.

  The marker recognizing unit 30 recognizes a specific object included in the actual landscape imaged by the imaging unit 1 as a marker. A marker is a mark that serves as a reference for a relative position and orientation when a virtual image is superimposed on an image obtained by photographing a real landscape, and a three-dimensional shape of a specific object (such as a castle ruin or an observation deck) included in the real landscape. It is recognized based on the characteristics of Information on the characteristics of the three-dimensional shape of the specific object is registered in advance in the marker storage unit 31. The marker storage unit 31 includes a memory and stores shape information of a plurality of different markers. The marker recognizing means 30 is stored in the marker storage unit 31 by comparing the shape information stored in the marker storage unit 31 with the shape information of a specific object included in the image captured by the imaging unit 1. Which marker among the plurality of markers is recognized. The processing by the marker recognizing means can be realized by an image comparison algorithm such as DP (Dynamic programming) matching. In this process, it is possible to make a comparison with the registered marker in more detail by increasing the resolution of the imaging unit 1, so that if the resolution of the imaging unit 1 is increased, the number of registered markers can be increased. Become. Examples of markers in the present embodiment include castles, castle ruins, observation decks, towers, condominiums, amusement facilities, stations, and highways included in real images. In addition, the recognition of the marker may be performed by recognizing a plurality of objects included in the actual image as respective markers at each of a plurality of locations, or recognizing a plurality of objects included in the actual image as a set of markers. There may be. Information on the marker recognized by the marker recognizing unit 30 is sent to the position / posture deriving unit 32 and the virtual image deforming unit 36.

  The position / posture deriving unit 32 obtains the three-dimensional position and posture of the marker recognized by the marker recognizing unit 30. The position / posture deriving unit 32, for example, based on the three-dimensional shape information received from the marker recognizing unit 30 and the three-dimensional position / shape of the object corresponding to the marker in the real image, The position / orientation with respect to the imaging unit 1 is calculated. That is, the distance / angle with respect to the marker viewed from the imaging unit 1 is derived. The information for specifying the three-dimensional position / shape of the object corresponding to the marker includes, for example, coordinate values in the marker of at least three feature points of the marker. The method for calculating the three-dimensional position and orientation of the marker is, for example, “Hirokazu Kato, Tokuo Amagasaki, Keihachiro Tachibana: a registration method for augmented reality based on matching of templates generated online from texture images, A well-known method is used as shown in the Transactions of the Virtual Reality Society of Japan, Vol.7, No.2, pp.119-128 (2002).

  As other methods for deriving the position / orientation of the marker, a position detection unit that detects the position of the gondola (that is, the position of the imaging unit 1) and an imaging direction detection unit that detects the imaging direction of the imaging unit 1 are provided. And a method of calculating the position and orientation of the marker with respect to the imaging unit 1 based on the detection information of the position detection unit and the detection information of the imaging direction detection unit. The position detector measures the time from when the trigger transmitter provided at the landing 64, the trigger receiver provided at each gondola, and the signal received from the trigger transmitter is received by the trigger receiver. A thing provided with the timer can be considered. The position of each gondola 63 can be calculated by the control unit 3 provided in each gondola 63 from the time information measured by the timer and the rotational speed information of the rotating wheel 62 rotating at a steady speed. As the imaging direction detection unit, a sensor such as a geomagnetic sensor or a gyro sensor attached to the imaging unit 1 can be considered. In addition, since the rotating wheel 62 of the ferris wheel rotates continuously, and each gondola 63 moves at a constant speed, the position / posture of the marker included in the actual image constantly change.

  Of course, a so-called global positioning system (GPS) may be used as the position detection unit.

  The position / posture information derived by the position / posture deriving means 32 is sent to the virtual image deformation means 36.

  When receiving the information regarding the marker sent from the marker recognizing unit 30, the virtual image deforming unit 36 acquires a virtual image corresponding to the marker from the storage unit 34. The storage unit 34 includes a memory, and is a part that stores a specific marker and a specific virtual image in association with each other in advance. As this virtual image, a landscape of an era different from the present, such as a computer graphics image (hereinafter referred to as a CG image) simulating a past landscape (for example, a castle or a city) or a CG image simulating a landscape that anticipates the future. There are various types that imitate. In particular, as a past landscape, when a landmark is recognized as a marker, a CG image of a castle or city that was previously built as a virtual image is superimposed on the real image, The state can be superimposed on the actual image as a CG image. In addition, regarding the state of the battle in the Sengoku period, expressing the state of the battle with a moving image is more preferable because it can give a greater sense of realism and interest. Of course, further retroactively, for example, a stone age residence can be used as a CG image.

  The virtual image deformation unit 36 changes the size and angle of the virtual image stored in the storage unit 34 according to the position of the gondola 63. Specifically, the virtual image is changed based on the marker position / posture information derived by the position / posture deriving means 32. When receiving the information regarding the marker sent from the marker recognizing unit 30, the virtual image deforming unit 36 acquires the virtual image corresponding to the marker from the storage unit 34 as described above. Then, the size / angle of the virtual image is specified based on the information calculated by the position / posture deriving means 32, and the virtual image is deformed based on the size / angle specifying information. As this modification, it is assumed that an object (for example, a castle) represented by a three-dimensional virtual image is provided on the ground, and matches the shape of the object on the ground viewed from the imaging unit 1 of the gondola 63 in the air. Thus, it is preferable to change the virtual image.

  Further, the virtual image deforming means 36 may have a correcting means for correcting the brightness of the virtual image in accordance with the brightness of the actual scenery after the size and angle of the virtual image are deformed as described above. Good. That is, by manipulating the brightness of the virtual image by the correcting means, the virtual image can be superimposed on the actual image without any discomfort.

  Information on the virtual image deformed by the virtual image deformation means 36 in this way is sent to the image composition means 33.

  When acquiring the information of the deformed virtual image from the virtual image deforming unit 36, the image compositing unit 33 superimposes the deformed virtual image on the part corresponding to the marker of the real image, and creates a new image (composite image). ) Is generated. The information of the composite image generated here is sent to the image display means 35.

  The image display means 35 is a part that displays the image generated by the image composition means 33 on the display unit 2. When the image display unit 35 receives the composite image information from the image composition unit 33, the image display unit 35 displays the composite image on the display unit 2 disposed in the gondola 63.

  Such a series of controls in the controller 3 is continuously performed as the ferris wheel gondola 63 moves. For example, as the gondola 63 rises, the relative posture of the marker gradually changes. However, since the virtual image deformation means 36 changes the virtual image according to the position of the gondola, the virtual image As it rises 63, it gradually becomes smaller and changes to a posture viewed from above. Thereby, even if the image superimposed on the real image is a virtual image, the image displayed by the display unit 2 can be made as close as possible to the actual image.

  Further, since the image displayed by the display unit 2 is a virtual image superimposed on the real image, it is synchronized with the surrounding environment such as weather and brightness. Thereby, for example, a sense of reality is further increased as compared with a case where a recorded image recorded in advance is simply broadcast according to the movement of the ferris wheel.

  That is, the ferris wheel according to the present embodiment can give the passenger of the gondola 63 a mixed reality using a wide field of view that can be seen from the gondola 63 of the ferris wheel. Moreover, since the gondola 63 constantly moves not only in the horizontal direction but also in the height direction, it is possible to give a mixed reality that cannot be obtained only from the viewpoint from the ground.

  In addition, the ferris wheel of the present embodiment is provided with the operation lever 51 that can change the imaging direction of the imaging unit 1 in the operation unit 5, so that it is possible to give mixed reality to the scenery in the desired direction of the passenger. . Thereby, the passenger can feel even more interesting.

  Here, in the ferris wheel of the present embodiment, the operation unit 5 is further provided with a setting unit 52 that can set the contents of the virtual image, in addition to the operation lever 51. The setting unit 52 displays age setting buttons for displaying virtual images of a set era among virtual images created by imitating each era, and various characters (eg, monsters) that do not exist in the fantasy world. It has setting buttons that allow various settings, such as a character setting button. The setting unit 52 is connected to the control unit 3. For example, when the age setting button is operated, a past landscape such as the Jomon period, Yayoi period, or the like is selected and displayed on the display unit 2. Can be made. The storage unit 34 stores a plurality of virtual images corresponding to each era in advance. For example, when the Heian era is set by the age setting button, the setting unit 52 sends a signal indicating that the Heian era is selected to the image composition means 33. Then, the control unit 3 acquires a virtual image (for example, a CG image imitating Heiankyo) corresponding to the marker recognized by the marker recognition unit 30 from the storage unit 34 corresponding to the Heian era. Then, the virtual image deforming unit 36 deforms the size / posture (angle) of the virtual image based on the information from the position / posture deriving unit 32 (that is, according to the position of the gondola 63), and the image synthesizing unit 33 The deformed virtual image is superimposed on the actual image to generate an image. The image generated here is sent to the image display means 35 and displayed on the display unit 2.

  In this way, the setting unit 52 can set the image displayed on the display unit 2 to the one of the passenger's desired era, so that the land that was not obtained simply by looking at the scenery from the Ferris wheel It is possible to learn about history and to raise interest in history. Furthermore, since a historical building can be viewed from above, the passenger can feel an unprecedented interest.

  In addition, the ferris wheel of the present embodiment only needs to modify and change the virtual image stored in the storage unit 34 when changing the content. Therefore, it is possible to acquire repeaters if the content is periodically changed.

  In addition, if a virtual image is used, such as an image showing the name of a specific object (such as a historic spot or a famous spot) corresponding to the marker, or an image in which tourist information or explanation of the specific object is written The display by the display unit 2 can also be used as a video guide by a ferris wheel. The virtual image can also be used as a so-called digital signage (electronic advertisement) that displays the company name in front of the building or describes the company name, product name, or brand name in the ad balloon that floats in the air. It is.

  In addition, virtual images can be created using CG images of underwater and underwater conditions or underground conditions, or used in the event that the actual landscape is at night. -You may use what created images, such as a constellation, as a CG image.

  Next, Embodiment 2 will be described with reference to FIG. Since the present embodiment is mostly the same as the first embodiment, the same portions are denoted by the same reference numerals, description thereof is omitted, and different portions are mainly described.

  The ferris wheel of this embodiment is different from the above embodiment in that the display unit 2 is provided in the head-mounted display device 7. The head-mounted display device 7 is configured by a head mounted display (HMD). The head-mounted display 70 is a display that can be mounted on the head, and the display serving as the display unit 2 covers the front of the passenger's eyes when mounted on the passenger.

  The ferris wheel of this embodiment is provided with a connector portion 71 for connecting the head mounted display 70 to the operation portion 5. This connector part 71 is connected to the control part 3. When the head mounted display 70 is connected to the connector unit 71, the head mounted display 70 receives an image signal sent from the image display means 35 of the control unit 3 and displays a composite image on the display unit 2 covering the front of the eyes.

  As a result, if a past landscape or a future landscape is displayed, it is possible to view a landscape beyond time and space as if the user were on a time machine.

  Moreover, it is good also as what applied the 3D system which enables a passenger | crew to recognize depth and a three-dimensional effect for the content displayed on the display part 2 of the head mounted display 70. FIG. In other words, it controls the 3D image forming means that generates an image that is different between the content that can be seen by the right eye and the content that can be seen by the left eye, and that generates an image that allows the passenger to recognize that the display content of the display unit 2 is three-dimensional. You may provide in the part 3. FIG. This makes it possible to make the Ferris wheel more realistic.

  As described above, the ferris wheel of the present invention has been described based on the ferris wheel using the marker-recognition type mixed reality technology. However, the ferris wheel of the present invention substitutes any image feature point for the marker. A technique using a markerless tracking (for example, exemplified in JP-A-2007-207251) may be used. In this case, the marker recognizing unit 30 in the first embodiment is not necessarily required.

  In addition, since the virtual image deformation means of the present invention only needs to deform the image according to the position of the gondola, the size / angle of the virtual image is specified in accordance with the steady movement of the ferris wheel gondola. May be. For this reason, the position / posture deriving means 32 of the first embodiment is not necessarily required in the present invention.

  Further, in the apparatus using the head-mounted display 70 of the second embodiment, the imaging unit 1 is provided in the head-mounted display 70 provided in each gondola 63, and the imaging direction of the imaging unit 1 is made to coincide with the line of sight. The unit 1 may be configured to include a position detection unit and an imaging direction detection unit. In this way, it is possible to present mixed reality corresponding to the direction in which the passenger is actually facing. In this case, of course, the imaging unit 1 provided in the head mounted display 70 is included in the category “provided in each gondola” in the present invention. As the head mounted display 70, a wireless display may be used.

  In the ferris wheel of the first embodiment, the control unit 3 is provided in each gondola 63. However, in the ferris wheel of the present invention, the control unit is provided in a place away from the gondola (for example, a room of a building). The display unit of each gondola may be remotely controlled. In the ferris wheel according to the first embodiment, the age setting button of the setting unit 52 corresponds to each era such as the Jomon period, Yayoi period, etc. It may be one that selects historical events.

DESCRIPTION OF SYMBOLS 1 Image pick-up part 2 Display part 3 Control part 30 Marker recognition means 31 Marker memory | storage part 32 Position and attitude | position derivation means 33 Image composition means 34 Storage part 35 Image display means 36 Virtual image deformation | transformation means 5 Operation part 51 Operation lever 52 Setting part 60 Support Leg 61 Rotating shaft 62 Rotating wheel 63 Gondola 64 Boarding place 65 Entrance / exit 66 Door 67 Seat 68 Transparent window G Installation surface

Claims (8)

A ferris wheel having a plurality of gondola,
An imaging unit that is installed in each gondola and captures the scenery outside the gondola;
A display provided in each gondola;
A position detection unit that detects the position of the imaging unit and outputs imaging unit position information indicating the position of the imaging unit;
Generating a virtual image is deformed on the basis of the image pickup unit position information, the generating a composite image by superimposing the virtual image at a predetermined position of the real image taken by the imaging unit, wherein the composite image A control unit for displaying on the display unit ,
The position detector is
It has a timer configured to measure an elapsed time from the time when the imaging unit moves to a predetermined position, and is obtained based on the elapsed time measured by this timer and the moving speed of the gondola. The ferris wheel is configured to output the imaging unit position information to the control unit . The controller is
A storage unit storing virtual images;
Virtual image deformation means for changing the size and angle of the virtual image stored in the storage unit according to the position of the gondola;
Image composition means for generating a composite image by superimposing the image changed by the virtual image deformation means on a predetermined position of the real image taken by the imaging unit;
The ferris wheel according to claim 1, further comprising image display means for displaying an image generated by the image composition means on the display unit. A position detector for detecting the position of the imaging unit;
An imaging direction detection unit that detects an imaging direction of the imaging unit;
The virtual image deformation means changes the virtual image based on detection information of a position detection unit and detection information of an imaging direction detection unit.
The ferris wheel according to claim 2. The controller is
Marker recognition means for recognizing a specific object included in the real image as a marker,
A position / posture deriving unit for deriving the position / posture of the marker recognized by the marker recognizing unit;
The storage unit stores the virtual image in association with the marker in advance,
The virtual image deformation means changes the virtual image based on the marker position / posture information derived by the position / posture derivation means,
The control unit
When the marker is recognized by the marker recognizing unit, a virtual image corresponding to the marker is acquired from the storage unit, the acquired virtual image is changed by the virtual image deforming unit, and the changed image is converted by the image synthesizing unit. A composite image is generated by superimposing on the part corresponding to the marker of the real image, and the composite image is displayed on the display unit by the image display means.
The ferris wheel according to claim 2. The virtual image is a computer graphics image imitating a landscape of an era different from the present,
The ferris wheel according to any one of claims 1 to 4. A plurality of virtual images of different ages are stored in the storage unit,
Each of the gondola further includes a setting unit that can be set to a landscape of any age,
The control unit obtains a virtual image corresponding to the age set by the setting unit from the storage unit and superimposes the virtual image on the real image, and displays the composite image on the display unit by the image display unit. Is what
The ferris wheel according to claim 5. The imaging unit is a camera provided outside the gondola and capable of changing an imaging direction,
The gondola further includes an operation unit that changes an imaging direction of the camera.
The ferris wheel according to any one of claims 1 to 6.   The ferris wheel according to any one of claims 1 to 7, wherein the display unit is provided in a head-mounted display device.

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