WO2007091333A1

WO2007091333A1 - Video display

Info

Publication number: WO2007091333A1
Application number: PCT/JP2006/302386
Authority: WO
Inventors: Shigeru Saito
Original assignee: T-Net Inc.
Priority date: 2006-02-10
Filing date: 2006-02-10
Publication date: 2007-08-16
Also published as: JPWO2007091333A1

Abstract

A video display has such a problem that a video image for raising pleasure nature at a stair portion especially in an amusement facility or a department store cannot be displayed on a plane of an uneven shape. As a means for solution, a video image having fixed directivity and speed is outputted beforehand to a screen of an uneven shape, and, as a person or an object moves on the screen, the output video image is varied depending on its positional information. Since the varied video image is displayed while enlarged as compared with a video image projected normally to a flat portion depending on the screen of an uneven shape, such a visual image effect as giving a speed changing view is attained and pleasure nature can be raised.

Description

Video display device

Technical field

TECHNICAL FIELD [0001] The present invention relates to a technology of an apparatus for projecting an image on a screen having an uneven shape.

Background art

[0002] In fields such as amusement facilities and game consoles, technologies related to video display devices that acquire position information of objects on a screen and change an image according to the acquired position information have been developed. In Patent Document 1, a technique has been developed in which the position where the hand moves is acquired as position information, and the cursor on the display is moved by moving the hand like a computer mouse. Patent Document 2 discloses a technology that can acquire position information according to the movement of a person standing in front of the screen and play a game displayed on the display using the acquired position information. .

Patent Document 1: JP 2000-196914

Patent Document 2: US005534917

Disclosure of the invention

Problems to be solved by the invention

[0003] However, even when the above technique is used, it is usual to use a display or a flat screen as a medium for displaying an image, and to display the content of the image on a flat surface. It was intended. For this reason, when these images are displayed on a surface having a concavo-convex shape, the image is unclear and has a power that gives an image effect. Therefore, the uneven shape was a force that would rather hinder the display of clear images. For this reason, it was difficult to display highly entertaining images on uneven surfaces such as amusement facilities and department store stairs. In addition, amusement facilities and department store staircases were not able to place objects in accordance with the Fire Service Act.

[0004] Therefore, an object of the present invention is to provide an image display device capable of displaying a highly entertaining V ヽ image on a surface having an uneven shape, particularly a stepped surface. Means for solving the problem

[0005] In order to solve the above-mentioned problem, in the first invention, the uneven shape gives an image effect to a screen having an uneven shape, on which an object can be arranged or moved. A projection unit for outputting an image, a position information acquisition unit for acquiring position information of an object on the screen, and a video output by the projection unit according to the acquired position information according to the uneven shape And a control unit that performs control so as to provide the image.

[0006] According to a second invention, there is provided the video display device according to the first invention, wherein the projection part is a part having a low partial force at a high position on a concavo-convex screen as an image capable of giving an image effect. Provided is a video display device having fall video output means for outputting video in which a pattern moves by force.

[0007] In the third invention, there is provided the video display device according to the first invention or the second invention, wherein the projection unit has projection means for staircase screens for outputting an image using the staircase as the screen. To do. Further, the fourth invention is characterized in that the projection part projects at an angle of greater than 0 degrees and less than 90 degrees with respect to the horizontal plane of the stairs when viewed from the side going up the stairs. The fifth invention is characterized in that the projection part projects at an angle of 45 degrees with respect to the horizontal plane of the stairs. In addition, the sixth invention is characterized in that the projection part projects at an angle greater than 45 degrees and less than 90 degrees with respect to the horizontal plane of the staircase. Further, the seventh invention is characterized in that the projection unit projects in a direction substantially perpendicular to the gradient surface of the staircase. Further, the eighth invention is characterized in that the position information acquisition unit acquires the position information from a direction substantially perpendicular to the horizontal plane of the stairs.

The invention's effect

[0008] In the video display device of the present invention configured as described above, positional information of an object on a surface having a concavo-convex shape is acquired, and an image is displayed on the concavo-convex shape screen according to the movement of the object and the concavo-convex shape. By outputting an image that gives an effect, it is possible to enhance the amusement on the surface having the uneven shape.

[0009] In particular, when the concavo-convex shape is a staircase shape, a staircase that has conventionally been difficult to enhance amusement by displaying object position information and a video corresponding to the staircase shape is displayed. In It is possible to improve the playability. In addition, even in places where things cannot be placed under the Fire Service Act, such as amusement facilities and department store stairs, it is possible to improve the playability without installing playground equipment.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to these embodiments, and can be implemented in various modes without departing from the scope of the present invention. The first embodiment will mainly describe claims 1 and 2. Embodiment 2 will mainly describe claims 3 to 8.

[0011] <Embodiment 1>

(Concept of Embodiment 1) The concept when the video display apparatus of this embodiment is used will be described with reference to FIGS. 1 and 2. FIG. As shown in Fig. 1, first, an image of a river flowing in the direction of the arrow is displayed on the floor with an uneven shape, and when you step into this river flowing image, Fig. 2 (1), (2) As shown in Fig. 3, the foot position information is projected as if you actually stepped into the river. Fig. 2 (1) is an image when the foot is stepped on the upstream side of the river flow, and Fig. 2 (2) is an image when the foot is stepped on the downstream side of the river flow. The video projected at this time is further displayed so as to change according to the uneven shape along with the flow of the river. The video display device capable of displaying the above video will be described in detail below.

(Configuration of Embodiment 1) FIG. 3 shows a functional block diagram of a video display apparatus according to this embodiment. The “video display device” (0300) in this embodiment includes a “projection unit” (0301), a “position information acquisition unit” (0302), and a “control unit” (0303). FIG. 4 shows the hardware configuration of the video display apparatus in this embodiment. As shown in Figure 4, each part of the video display device (03 00) consists of HDD (0401), CPU (0402), ROM (0403), RAM (0404), external communication device (0405), projector (0406), It consists of a system node (0407), an image pickup body (0409), an external communication device and a projector, and an interface (0408) for connecting the image pickup body.

(Description of Configuration of Embodiment 1) “Video display device” (0300) includes a projection unit (0301), a position information acquisition unit (0302), and a control unit (0303), and has an uneven shape. Video on screen It is configured to display. As shown in FIG. 5, the video display device (0300) may be installed on the screen (0501) having a concavo-convex shape to display video on the screen, or display video on the screen. If it is possible, it may be installed on the side wall.

[0015] The "projection part" (0301) has a concavo-convex shape, and outputs an image in which the concavo-convex shape can provide an image effect on a screen on which an object can be arranged or moved. Is configured. As shown in Fig. 4, the projection unit is also configured with power, such as a projector (0406). In addition, as shown in FIG. 5, the projection unit may display the image directly on the screen having the uneven shape, but as shown in FIG. 6, the image from the projection unit (0301) is displayed as a mirror ( 0601) or the like, and the image may be displayed on the screen (0501). When reflecting back to the mirror, the position of the projected image can be adjusted by changing the mirror reflection angle. Multiple projections may be provided for one screen.

[0016] A screen having a concavo-convex shape on which an object can be arranged or moved is a concavo-convex surface on which the object can move or stay in one place. A screen with For example, the screen having an uneven shape may be a floor surface provided with unevenness such as stones or rocks as shown in FIG. 1, or may be a wall surface provided with similar unevenness. It should be noted that the surface may be at a certain distance from the screen that does not necessarily need to touch the screen.

[0017] An image in which the uneven shape can give an image effect is an image that is controlled so as to give a change according to the uneven shape by a control unit described later. For example, in the image in Figure 1, an image simulating the flow of a river is output on the floor with stones and rocks. In this case, the image displayed on the floor is given a change according to the uneven shape, which will be described with reference to FIG.

[0018] FIG. 7 is a diagram schematically showing a case where the video output from the projection unit is projected on the screen in a sectional view. When the image is output in the same image range S on the projection part with the uneven surface as shown in Fig. 7 (1) and the surface with the uneven shape as shown in Fig. 7 (2), it is flat. The image output on the surface having the concavo-convex shape is enlarged and displayed in accordance with the concavo-convex shape (range S ′) than the image output on the flat surface. It has an uneven shape This is because the output image is displayed along the uneven shape. Therefore, for example, if an image of water having a certain direction on a screen having a concavo-convex shape and flowing at a constant speed is output, the image is enlarged and displayed according to the concavo-convex shape. Visually faster images are displayed at locations with uneven shapes than

[0019] Generally, if the flow velocity V, the flow rate Q, and the cross-sectional area are A, the flow velocity is expressed as V = QZA. Therefore, when the flow rate is constant, the flow velocity increases as the cross-sectional area decreases. In other words, even in an actual river flow, if the flow rate is constant, the cross-sectional area seen from the flow direction becomes smaller and the flow velocity becomes faster at a portion that is shallower by stones. Therefore, as described above, the image is enlarged and displayed on the surface having the concavo-convex shape, so that a state close to the dynamics of real water can be expressed by flowing the image at a constant speed.

In this manner, the projection unit can output an image that is controlled by the control unit, which will be described later, to change according to the uneven shape. The output video is not limited to the video showing the river flow as exemplified above, but any video can be used, but by displaying the video with directionality and movement, the video with higher image effect can be displayed. can do. The output video may be the actual captured video, but by creating the video output by CG (computer graphic), it is possible to make the display more conform to the uneven shape. The

[0021] Furthermore, by adding a gradient to a screen having a concavo-convex shape and displaying an image having directionality to a position where the screen has a high positional force and a low position, it is possible to express a more realistic image. . At this time, the projection unit has dropping means video output means. The drop means image output means has a function of outputting an image in which the pattern moves toward a portion with a low partial force at a high position of the uneven screen as an image capable of giving an image effect. The drop means image output means can output, for example, an image of a river that flows by force toward a portion where the partial force at a high position on the screen is also at a low position.

The “position information acquisition unit” (0302) is configured to acquire position information of an object on the screen. “Position information” is information for indicating the position of an object on the screen. As shown in Fig. 4, the position information acquisition unit acquires the image of the object on the screen. Imaging device (0409), HDD (0401) with software for analyzing video acquired from the imaging device, CPU (0402), ROM (040 3), RAM (0404) for operating the software ) And so on. A video camera or the like is suitable as the image pickup body. As shown in FIG. 5, the image pickup body may pick up an image from the ceiling downward, and like the projection unit shown in FIG. 6, the image on the screen reflected by the mirror may be picked up. In addition, in order to accurately acquire position information, it is desirable to use an infrared sensor in combination with an imaging body such as a video camera. The position information acquisition unit may be juxtaposed with the projection unit, or may be provided at a location different from the projection unit. As shown in FIG. 4, among the configurations of the position information acquisition unit, configurations overlapping with the control unit may be used in a superimposed manner or may be configured separately. For example, the position information of an object can be identified by comparing, among images acquired by an imaging body, an image captured before the object is placed or moved and an image taken after the object is placed or moved. It can be carried out.

[0023] As shown in Fig. 8 (1A), if a screen having a concavo-convex shape is indicated by the X-axis and Y-axis, each position on the screen is represented by an XY coordinate block as shown in Fig. 8 (1B). Can be expressed as The imaging body captures in advance a screen image in the state shown in FIG. 8 (1A). Then, when an object is placed or moved on the screen, the image picked up by the image pickup body changes as shown in FIG. 8 (2A). Comparing the image acquired in the state of Fig. 8 (2A) with the image acquired in the state of Fig. 8 (1A), the image is the same except for the part where the object exists. Therefore, if the difference value between the two images is acquired and assigned a numerical value of 0 when the difference value is 0 and a place where the difference value is other than 0, it can be expressed as shown in FIG. 8 (2B). Furthermore, after moving the object, if the difference value is acquired by comparing the image acquired in the state of Fig. 8 (3A) with the image acquired in the state of Fig. 8 (1A), Fig. 8 (3B) As shown in FIG. In Fig. 8 (2B) and (3B), 0 is displayed in white and 1 is displayed in black.

[0024] As shown in Figs. 8 (2B) and (3B), when the coordinate block is set with a small scale compared to the size of the object, the position of the object on the screen has a specific spread. Be recognized. At this time, the coordinates indicated by the entire spread may be acquired as the position information of the object, or only the coordinates of the center may be acquired as the position information of the object. When a video camera or the like is used as the image pickup body, it is possible to acquire the position information by continuously capturing images. In FIG. 8, the sphere is used for explanation. For example, when the floor surface having an uneven shape is a screen, the image to be captured changes depending on the passage of the person, and the location of the person is used as the position information. To be acquired.

[0025] The position information of the object can be acquired as described above. In addition, by using the technique disclosed in Japanese Patent Laid-Open No. 2003-135851, each video may be compared by acquiring two pieces of position information by comparing two consecutive still images forming the video. For example, a product such as “GroundFX (TM)” manufactured by Gesturetek may be used as a means for acquiring the position information. Further, as another means for acquiring the position information, for example, a film for detecting pressure or vibration may be provided under the screen, and the position of the object may be specified at the position where pressure or vibration is detected. In this case, it is not necessary to install an imaging body. The means for acquiring the position information is not limited to these methods, and any other means may be used as long as it can identify the position of the object.

[0026] The "control unit" (0303) is configured to control the image output by the projection unit so as to change according to the uneven shape in accordance with the acquired position information. . The control unit is also configured with software for outputting video and software. As shown in Fig. 4, the hardware configuration of the control unit consists of software for outputting video, HDD (0401) for storing video information to be output, and software for outputting video. CPU (0402), ROM (0403), RAM (0404), and system bus (0407) that connects them are also available. In addition, an external communication device (0405) for connecting to a LAN or the like may be provided in the case where the image information is also acquired via a network, such as an external image information server.

[0027] When the object is not arranged or moved on the screen surface, the position information acquisition unit does not acquire the position information, so the control unit, for example, the river flow as illustrated in FIG. The projection unit is controlled so as to output the video of the above to the screen. When an object is placed or moved on the screen surface, the position information acquisition unit acquires the position information of the object, and the control unit outputs an image corresponding to the acquired position information at the projection unit. To control.

[0028] For example, as shown in FIG. 1, an image of a river flow on a floor screen having an uneven shape If an object is placed within the range of the screen as shown in FIG. 2, the position information acquisition unit provided at the top of the screen or the like acquires the position information of the object. To do. Then, the control unit outputs an image corresponding to the position information. In the examples shown in Fig. 2 (1) and (2), the power is also controlled to output a picture of water splashing as if it were actually stepping into the water, as well as water being sprinkled. Furthermore, since the image of the river flow has a certain direction, it is controlled to output an image whose influence affects the downstream side according to the flow. At this time, even if the image of the river with a constant flow velocity or the image of bubbles flowing at a constant speed was actually output, the screen has an uneven shape as shown in FIG. Therefore, it looks like the flow rate changes! /

(Specific Example of Embodiment 1) FIG. 9 shows a state where the projection unit (0901) and the position information acquisition unit (0902) are arranged in the cabinet (0904) and connected to the control unit (0903). An example is shown. The projection unit consists of a projector, the position information acquisition unit is a video camera (0902a) and an infrared sensor (0902b) for improving accuracy, and these projection units and position information acquisition units are control units. Connected to a computer. The image display device constituted by these is installed on the upper part of the screen having an uneven shape.

[0030] The projection unit outputs a river flow image as shown in FIG. 1 under the control of the control unit. The position information acquisition unit captures an image in which no object is present on the screen surface in advance. In this state, when a person stops or passes over the screen, the image acquired by the video camera changes, and further, the position information on the person's screen is detected by sensing with the infrared sensor. To get. When the position information is acquired, the control unit controls the video output according to the position indicated by the acquired position information on the screen surface. For example, when the upstream position information of a river image as shown in Fig. 1 is acquired, the influence on the image caused by the passage of people as shown in Fig. 2 (1) extends to the downstream side. If the acquired position information is on the downstream side as shown in Fig. 2 (2), an image that does not have a wide range of influence is output. At this time, even if the river flow velocity of the output video is kept constant, a visual effect that the flow velocity is changing can be given due to the uneven shape of the screen. At this time, if the image is displayed on a screen with a slope, the water flow is more realistic. Image effects can be given.

(Effect of Embodiment 1) In the video display device of the present embodiment having the above-described configuration, position information of an object on a surface having a concave and convex shape is acquired, and the movement of the object and the concave and convex shape are used. By outputting an image that gives an image effect to the concavo-convex screen, it is possible to display a highly entertaining image on the surface having the concavo-convex shape.

Embodiment 2

(Concept of Embodiment 2) The concept when the video display apparatus of this embodiment is used will be described with reference to FIG. As shown in FIG. 10, in the video display device according to the present embodiment, in the video display device according to the first embodiment, the video is output particularly using the stairs as a screen. As in the first embodiment, when the image of the river flow is displayed on the staircase so as to flow from the upper side of the stairs to the lower side, an image effect can be provided such that the river flow flows down the stairs. A video display device capable of displaying the above video will be described in detail below.

(Configuration of Embodiment 2) FIG. 11 shows a functional block diagram of a video display apparatus according to this embodiment. The “video display device” (1100) in this embodiment includes a “projection unit” (1101), an “information acquisition unit” (1102), and a “control unit” (1103), and further includes a projection unit (1101). ) Has “projection means for staircase screen” (1104). Since the configuration other than the “staircase screen projection means” (1104) has already been described in the first embodiment, the description thereof is omitted. FIG. 12 shows the hardware configuration of the video display apparatus in this embodiment. As shown in Fig. 12, each part of the video display device (1100) consists of HDD (1201), CPU (1202), ROM (1203), RAM (1204), external communication device (1205), projector (1206), The system bus (1207), the image pickup body (1209), an external communication device and a projector, and an interface (1208) for connecting the image pickup body are included.

(Description of Configuration of Embodiment 2) “Staircase screen projection means” (1104) is a function of the projection unit, and outputs a video image using the staircase as the screen. As shown in Fig. 13, the projection section equipped with the staircase screen projection means is such that the projection angle Θ is greater than 0 degree and less than 90 degrees with respect to the horizontal plane of the staircase (1303) when viewed from the side of the staircase Project at an angle. More specifically, for example, as shown in FIG. 13, the angle of the projection angle with respect to the horizontal plane (1303) of the staircase of the image output from the projection section of the cabinet (1302) is greater than 0 degrees. Install it at an angle Θ of less than 90 degrees. Here, the projection angle refers to an angle formed by the optical axis of the projector and a horizontal plane, and is also referred to as a projection angle. In the present embodiment, it means an angle formed by the side force that the optical axis of the projection part and the horizontal surface of the step rise up the stairs. The staircase in the present embodiment is formed by a substantially horizontal horizontal plane (1303) and a substantially vertical vertical plane (1304)!

[0035] As shown in Fig. 13, the angle of the projection angle with respect to the horizontal plane of the staircase when viewed from the upper side of the staircase is displayed on the horizontal plane (1303) and vertical plane (1304) when Θ force 0 ° <0 <90 ° is satisfied The displayed image is enlarged and displayed as compared with the case of projecting from a vertical direction on a screen having no uneven shape. This will be described with reference to FIG.

[0036] As shown in FIG. 14, when the projection angle is 0 (0 ° to 0 ° 90 °) with respect to the horizontal plane of the staircase, the image of the width R output from the projection section is the horizontal plane. In this case, it is enlarged and displayed as L = RZsin 0. Similarly, the video with width R is enlarged and displayed as M = R / cos Θ on the vertical plane. When R = 1, L = l / sin Θ and M = l / cos Θ. Even when the same image is displayed on the horizontal and vertical planes, the magnification is 1 / sin Θ and lZcos Θ, respectively. The recorded video is displayed.

[0037] In this way, for example, when an image of a river flowing is displayed on the staircase screen projection means with an angle Θ of the projection angle with respect to the horizontal plane of the staircase, an image with a different magnification ratio between the horizontal plane and the vertical plane is displayed. Is displayed. Therefore, the displayed image can be changed by adjusting the projection angle Θ.

[0038] For example, if Θ = 45 °, the images displayed on the horizontal and vertical planes are doubled, and the horizontal and vertical planes have the same magnification. Therefore, when displaying text in addition to the image shown in Fig. 12, there is no difference in the enlargement ratio of the image displayed on the horizontal and vertical planes. , Video) can be displayed. For this reason, for example, when the projected video is an advertising advertisement, the transmitted V, characters, etc. can be displayed in an easy-to-see manner.

[0039] If the angle is 45 ° to 0 °, the enlargement factor in the vertical plane is larger than the enlargement factor in the horizontal plane. For this reason, when a video with a constant speed, such as a river flow, is output from the projection unit, the visual image effect that the flow velocity in the vertical plane appears faster than the flow velocity in the horizontal plane. Produce fruit.

[0040] In addition, the projection angle Θ may be projected in a substantially vertical direction with respect to the slope surface of the staircase that is not related to the horizontal surface of the staircase. As shown in FIG. 15, the stair slope surface (1501) is a surface formed by connecting the corners (1502) of the staircase. If projection is performed from a direction substantially perpendicular to the slope of the staircase, the distortion of the image is reduced on the upper side of the staircase and on the lower side of the staircase, and the displayed image can be easily corrected.

[0041] Furthermore, the projection unit in the present embodiment preferably has a projection angle of greater than 0 degrees and less than 90 degrees with respect to the stairs, but the position information acquisition unit is the same as the projection unit as shown in FIG. The position information of the object on the staircase may be acquired at the same angle as the angle projected by the projection unit, or the position information acquisition unit is separate from the projection unit, and only the position information acquisition unit You may install in a ceiling etc. so that it may become substantially perpendicular | vertical with respect to a horizontal surface.

(Specific Example of Embodiment 2) As shown in FIG. 10, the case where the projection unit outputs an image using a staircase as a screen will be described in detail using a specific example.

[0043] As shown in FIG. 13, first, the projection section is installed so that the projection angle Θ is 0 ° to 0 ° and 90 ° with respect to the horizontal plane of the stairs when viewed from the side of the stairs. As in the first embodiment, the projector uses a projector. In FIG. 13, as in the first embodiment, the position information acquisition unit includes a video camera and four infrared sensors, and is arranged in the same cabinet as the projection unit. Changing the angle of this cabinet can change the angle of the projection angle relative to the horizontal plane of the stairs.

[0044] The projection unit installed in this manner first outputs an image of a river flow as shown in Fig. 16 (1) under the control of the control unit. The position information acquisition unit captures an image of a state in advance when no object is present on the surface of the staircase. The XY coordinate block at this time is shown in Fig. 16 (2). In this state, as shown in Fig. 17 (1), when a person stops or passes on the stairs, the image acquired by the video camera changes, and the state shown in Fig. 16 (1) is changed. Get the difference value. Figure 17 (2) shows the obtained difference values on the XY coordinate block. In addition, the position information on the person's staircase is acquired by sensing the person who is the object with the infrared sensor together with the video camera. When the position information is acquired, the control unit controls an image to be output according to the position indicated by the acquired position information on the staircase surface. For example, When the position information of a person is acquired on the lower side of the stairs, control is performed to output an image that does not affect the image due to the passage of the person, but the acquired position information is If it is on the upper side, control is performed so as to output an image whose influence extends to the lower side as shown in Fig. 18 (1). The projection position of the output video is determined according to the acquired position information. For example, the projection position of the video shown in FIG. 18 (1) is determined by a coordinate block as shown in FIG. 18 (2). Note that FIG. 18 (2) is a diagram showing the projection position of the video output in accordance with the position information acquired by the position information acquisition unit in the figure showing the position information acquired by the position information acquisition unit. In the coordinate block shown in Fig. 18 (2), the image of the wave splashing from the most + X and + Y side coordinates (bottom left coordinate) of the acquired position information to the + X and + Y direction (bottom left direction). The wave image is output from the coordinates on the most -X, + Y side (bottom right coordinate) to the position in the X, + Y direction (bottom right), and the left and right waves The image projection position is shown when the bubble image is output at random coordinates. The control unit controls the projection unit so as to output an image such as a wave splash or a bubble at these coordinates. These video images change the type and position of the video output over time so that they flow downstream according to the river flow shown in Fig. 16 (1). Then, stairs passers-by can enjoy watching the video change as it moves. Since these images can be created in any way by creating them with CG, images different from these images may be output, and the projection position may also vary depending on the type of image. It is not restricted to this aspect. In Fig. 18 (2), the image of the splash is also output for the position force at the lower left and lower right of the acquired coordinate block, but the same change may be made from the entire acquired coordinate block. Also, the output video is a three-dimensional image, as shown in Fig. 18 (1), even when a planar image is output by specifying the position of a planar coordinate block as shown in Fig. 18 (2). It can be a moving image. At this time, even if the flow velocity of the river in the output image remains constant, when viewed from the upper side of the stairs, the image appears as if water is flowing from the back to the front on the horizontal surface of the stairs. In the vertical plane, the image looks like water is flowing from top to bottom. As another embodiment, if the cabinet shown in FIG. 13 is adjusted so that the projection angle is 0 = 45 ° with respect to the horizontal plane of the staircase, the horizontal plane and the vertical plane of the staircase are the same. Since the image is displayed at the enlargement ratio, it is possible to display less distortion on the horizontal and vertical planes when displaying flowing characters instead of the flow of〗 11. For example, in this case, it is also possible to display a character that flows from the bottom to the top in accordance with the speed of the person going up the stairs. In particular, it is effective to output advertisements as videos when outputting images on stairs installed in shopping centers. The output advertisements can flow with a certain direction, but can respond to people on the stairs and prevent or transform people. For this reason, it is possible to increase the degree of attention to advertising.

[0046] Further, if the cabinet shown in FIG. 13 is adjusted so that the projection angle is Θ force 5 ° to 0 ° and 90 ° with respect to the horizontal plane of the staircase, the image is displayed in a plane perpendicular to the horizontal plane of the staircase. Enlarged display. In this case, if the projection section outputs an image in which the flow of the river at a constant speed flows from the upper stairs to the lower stairs, the river flow gently flows on the horizontal plane and produces an image effect such as V. In addition, it gives an image effect that seems to flow down rapidly in the vertical plane.

[0047] Compared with the general water flow, when the water is actually flowed on the stepped surface, the vertical flow velocity is faster than the horizontal flow velocity if the water flow is slow. . Compared with the actual general river 11 flow, the flow velocity in the downstream area of i 11 is about 15 kmZh, which is converted to about 4.2 mZs. In addition, if only the vertical flow due to gravity acceleration g = 9.8 mZs ² is taken into account, the flow in the vertical direction may become faster than the flow in the horizontal direction after about 0.5 seconds. Recognize. For this reason, by adjusting the tilt of the cabinet so that the angle of projection at the projection area is 0 ° 5 ° to 0 ° to 90 °, images are displayed closer to the actual flow of water and J11. be able to.

[0048] When the position information acquisition unit is arranged in parallel with the projection unit as shown in FIG. 13, the image acquired by the video camera as the position information acquisition unit becomes as shown in FIG. 19 (1). As shown in Fig. 19 (2), the position information is acquired for the whole body of the person. For this reason, the video corresponding to the position information is controlled by the control unit so as to output the video corresponding to the position information of the whole body of the person. However, if the position information acquisition unit is installed so as to acquire position information from a direction substantially perpendicular to the horizontal plane of the stairs, the image acquired by the video camera becomes as shown in Fig. 20 (1). The position information can be acquired with high accuracy as the position on the horizontal plane of the stairs where a person exists as shown in Fig. 20 (2). For this reason, it is possible to control the control unit so as to output an image according to the position where a person is present, and an image closer to the actual water dynamics can be output from the projection unit.

(Simple description of effect of embodiment 2) [0049] In the video display device of the present embodiment having the above-described configuration, particularly when the uneven shape is a staircase shape, the object position information and the staircase shape are By displaying the corresponding video, it is possible to improve the amusement at a stage where it was difficult to enhance the amusement in the past. In addition, even in places where things can not be placed by the Fire Service Act, such as amusement facilities and debate stairs, it is possible to improve the playability without installing playground equipment. Brief Description of Drawings

[0050] FIG. 1 is a diagram showing an image displayed on the image display device of the first embodiment.

[Figure 2] Diagram showing how the displayed video changes according to the location information

FIG. 3 is a functional block diagram of the video display device according to the first embodiment.

圆 4] A diagram showing the hardware configuration of the video display device of Embodiment 1.

[Fig.5] Diagram showing how the projection section is installed

[Figure 6] Diagram showing the method of projecting the image by reflecting on the mirror

[FIG. 7] An explanation of how an enlarged image is displayed on a screen having an uneven shape.

[Figure 8] Diagram explaining how to obtain location information

[Fig.9] Diagram showing the projection unit and location information acquisition unit installed in the cabinet

FIG. 10 is a diagram showing an image displayed on the image display device of the second embodiment.

FIG. 11 is a functional block diagram of the video display device according to the second embodiment.

FIG. 12 is a diagram illustrating a hardware configuration of the video display device according to the second embodiment.

FIG. 13 is a diagram showing a state in which the video display device of Embodiment 2 is installed

[Fig.14] Diagram showing the relationship between projection angle Θ and displayed image

[Figure 15] Diagram explaining the slope of the stairs

[Fig.16] Image of staircase image when no object is present 圆 17] Image showing an object (person) on the stairs

圆 18] Diagram showing video output when an object (person) exists on the stairs

圆 19] Diagram explaining the position information acquired when the position information acquisition unit is juxtaposed with the projection unit

FIG. 20 is a diagram for explaining the position information acquired when the position information acquisition unit is arranged substantially perpendicular to the horizontal plane of the stairs.

Explanation of symbols

1100 Video display device

1101 Projection Department

1102 Location information acquisition unit

1103 Projection Department

1104 Control unit

1105 Projection means for staircase screens

Claims

The scope of the claims

[1] A projection unit for outputting an image having an uneven shape, and an image on which the uneven shape can give an image effect to a screen on which an object can be arranged or moved.

A position information acquisition unit that acquires position information of an object on the screen;

A control unit that controls the video output by the projection unit to change according to the uneven shape according to the acquired position information;

A video display device.

[2] The projection unit includes falling image output means for outputting an image in which a pattern moves by urging to a portion at a high position on a concave and convex screen as an image that can provide an image effect. Item 2. The video display device according to Item 1.

3. The video display device according to claim 1 or 2, wherein the projection unit includes a staircase screen projection means for outputting an image using a staircase as the screen.

4. The video display device according to claim 3, wherein the projection unit projects at an angle greater than 0 degrees and less than 90 degrees with respect to a horizontal plane of the stairs as viewed from a side force of climbing the stairs.

5. The video display device according to claim 4, wherein the projection unit projects at an angle of 45 degrees with respect to a horizontal plane of the stairs.

6. The video display device according to claim 4, wherein the projection unit projects at an angle greater than 45 degrees and less than 90 degrees with respect to a horizontal plane of the stairs.

7. The video display device according to claim 4, wherein the projection unit projects in a direction substantially perpendicular to the slope surface of the staircase.

8. The video display device according to any one of claims 3 to 7, wherein the position information acquisition unit acquires position information from a direction substantially perpendicular to a horizontal plane of the staircase.