JP2008272321A - Performance device and its performance method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a performance device capable of boosting the mood at a site by not only entertaining persons with a picture but also allowing the participation of a single person or many persons, and to provide its performance method. <P>SOLUTION: The performance device 1 includes: a translucent screen and a wall face W on which the picture is projected; a first camera 5a and a second camera 5b outputting the positions of a plurality of balls B as position information; and a control device 4 and a video protector 3 for projecting a picture producing sky rockets 1a as a display picture on the translucent screen and the wall face W. Audience A throws a ball B at a prescribed height or more to audience A in the surroundings and a performer M on a stage SG, so that the sky rockets 1a are sequentially displayed just like a fireworks event, thereby boosting the mood at the site and taste a sense of unity between the audience and the performer. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an effect device that produces an effect of displaying a display image on a projection surface and an effect method thereof.

  As a conventional effect device, for example, there is one described in Patent Document 1. If the pickup microphone is selected as the input means, the fireworks production apparatus described in Patent Document 1 detects the sound of a Japanese drum with the pickup microphone, and the size of the fireworks image and the fireworks sound in proportion to the volume of the Japanese drum. The light emission color of the fireworks image is determined based on the level of the sound of the Japanese drum and projected onto the screen by a video projector.

JP 2002-66163 A

  However, since the fireworks production device described in Patent Document 1 plays a Japanese drum and determines the size and emission color of the firework image based on the volume and sound quality, it is the participation of one Japanese player. One spectator who strikes the drum, and many other spectators are only watching the fireworks fired by one spectator. It is not impossible for a large number of spectators to participate by preparing multiple Japanese drums or by having multiple audiences sing a stretch of Japanese drums, but when many spectators sound Japanese drums continuously, The sound of a large Japanese drum and the sound of a large fireworks mix, so there is a risk that the crowded situation will be painful to the audience rather than enliven the atmosphere of the place.

  It is important that the stage device not only enjoys video, but also directs it so that it can be enjoyed by one person or many.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an effect device and an effect method that can not only enjoy watching an image but also enliven the atmosphere of the place by being able to participate by one person or many people.

  The rendering device of the present invention detects a projection surface on which an image is projected, position detection means for outputting the position of one or more light sources as position information, and movement of the light source exceeding a predetermined amount based on the position information. And a projection unit that projects an image for causing a display image to appear on the projection plane.

  In addition, according to the presentation method of the presentation device of the present invention, when the position detection unit outputs the position of one or more light sources as position information, and the movement of the light source more than a predetermined amount is detected based on the position information, a display image is displayed. An image that causes the image to appear is projected onto a projection plane.

  In the effect device of the present invention, the position detection means outputs the position of one or more light sources as position information. The projecting means for projecting onto the projection surface projects an image for causing the display image to appear on the projection surface when the movement of the light source more than a predetermined amount is detected based on the position information. Therefore, even if there is one light source or many light sources, you can enjoy the display image that appears while participating by handing or throwing one after another so that the movement of the light source is more than a predetermined amount be able to. Therefore, since the audience does not make a sound, it is possible to enjoy a large number of videos on which the display image is projected without giving the audience a sense of quarrel.

  If the projection unit determines that the light source has moved by a predetermined amount or more when the position of the light source reaches or exceeds a predetermined height, the projection unit moves the light source upward in order to detect the movement of the light source by a predetermined amount or more. It can be recognized by lifting or throwing it.

  It is desirable that the projection means sets the display image as a firework and sets the predetermined height to a position higher than the height at which the audience has reached out. In order to move the light source to a position higher than the height at which the audience has reached, the light source is thrown upward, so that the audience operates as if launching fireworks. Therefore, the audience can feel that they are launching fireworks themselves.

  In addition, if the projection unit determines that the light source has moved more than a predetermined amount because the position coordinates of the light source have changed by a predetermined amount or more, the projection unit shakes the light source in order to cause the projection unit to detect the movement of the light source beyond the predetermined amount. It can be recognized by turning and turning.

  The position detecting means is a video camera that images the light source, and the video camera is preferably arranged so as to capture a direction orthogonal to a direction in which the projection plane faces. If the video camera is placed so that it captures the direction perpendicular to the direction in which the projection plane is facing, the video camera can be prevented from directly capturing the projection plane from the front, so a display image is captured on the video camera. Thus, it is possible to prevent the projection unit from erroneously recognizing the display image as the light source.

  The projection plane is a screen placed on the back of the stage where the performer is located. When the position detection means outputs the position of the light source on the audience seat as position information, the audience lifts the light source above the head, It is possible to create a sense of unity between the audience and between the audience and the performers by throwing each other, or by passing the light source between the performers on the stage and the audience in the audience seats. Can be raised further.

  The production device and the production method of the present invention can be handed or thrown one after another between the audience so that the movement of the light source is not less than a predetermined number, even if there is one light source or many. You can enjoy the display image that appears while participating. Therefore, not only watching and enjoying the video, but also being able to participate in a large number of people, can enhance the atmosphere of the place

(Embodiment 1)
An effect device according to Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing the entire effect device according to Embodiment 1 of the present invention. FIG. 2 is a side view of the hall in which the effect device shown in FIG. 1 is installed.

  The stage device 1 shown in FIG. 1 shows an image in which a firework 1a appears on the wall surface W by the audience A throwing a shining ball B as a light source while the performer M plays on the stage SG in the hall H. To project.

  As shown in FIG. 1 and FIG. 2, the rendering device 1 includes a transmissive screen 2 and a wall surface W on which an image is projected, a video projector 3 that projects the transmissive screen 2 and the wall surface W, and an image on the video projector 3. A control device 4 for outputting, a video camera 5 for outputting video to the control device 4, an amplifier 6 for amplifying a sound signal from the control device 4, a first speaker 7a and a second speaker for outputting a sound signal from the amplifier 6. And a speaker 7b. Note that the transmissive screen 2 is not shown in FIG. In FIG. 2, the control device 4, the amplifier 6, the first speaker 7 a and the second speaker 7 b, and a first camera described later are not shown.

  The wall surface W is a white projection surface located on the back of the stage SG in the hall H. In the first embodiment, an image is directly projected on the wall surface W, but a white screen may be provided in front of the wall surface W to form a projection surface. The transmission screen 2 is arranged in parallel to the wall surface W. As the transmissive screen 2, a metal mesh can be used, but other materials can also be used as long as the image is reflected on the projection surface while transmitting the image to the wall surface W. For example, the transmission screen 2 can be a mirror curtain.

  The video projector 3 projects an image generated by the control device 4 and is disposed so as to face the wall surface W. The video projector 3 can be used as long as it is a general projector that projects a video by inputting a video signal from a video input terminal.

  The control device 4 detects the position of the ball B using the video from the video camera 5 as positional information and controls the appearance of the video of the fireworks 1a, or outputs BGM (background music) and sound effects It is. The control device 4 and the video projector 3 constitute a projection means.

  The video camera 5 includes a first camera 5a and a second camera 5b, and functions as a position detection unit that outputs a color image of the ball B to the control device 4 as position information. The first camera 5a is a camera that images the audience A from the side, and the second camera 5b is a camera that images the audience A from above. That is, the 1st camera 5a and the 2nd camera 5b are arrange | positioned so that the direction orthogonal to the direction where the wall surface W faces may be imaged.

  The amplifier 6 is an audio amplifier that amplifies BGM and sound effects from the control device 4 and outputs them to the first speaker 7a and the second speaker 7b.

  Ball B is a plastic sphere with a diameter of about 20 cm that emits light in orange, white, green, or red, with a light-emitting diode inside it, along with a battery and a resistor. is there. The light emission color of the ball B can be a plurality of mixed colors in addition to a single color. The material of the ball B can be made of vinyl or balloon material besides plastic. That is, the ball B is preferably made of a safe material that does not cause injury even if it is thrown and hits another audience A. In the first embodiment, three balls B are used, but one ball may be used. However, if there are a large number of balls B, the frequency of launch fireworks 1a increases and the power of fireworks display is high. Therefore, it is desirable to prepare balls B according to the number of spectators A.

  In the first embodiment, the ball B that electrically emits light is used as the light source, but it may emit chemically. In addition to the spherical shape, the shape may be a rod shape or an irregular shape. Further, in addition to visible light such as orange, invisible light such as infrared light may be used. When the ball B emits light as infrared light, an infrared LED or the like is incorporated, or a reflective material having infrared light reflectivity is attached to the spherical surface of the ball, and a projector that emits infrared light is provided for projection. It is possible to use a ball as a light source. If the light from the ball is infrared light, and the video camera 5 is provided with a visible light filter that blocks visible light and transmits infrared light, it can be prevented from being mistaken for the fireworks 1a and the surrounding scene. Therefore, there is no restriction on the arrangement of the video camera 5.

  However, by making the light emitted from the ball B visible light, all the audience A can visually recognize the ball B as the light source, so that the audience A feels that the fireworks 1a are launched by the movement of the ball B. be able to.

  The operation of the rendering device 1 according to Embodiment 1 of the present invention configured as described above will be described with reference to FIG. FIG. 3 is a flowchart for explaining the operation of the effect device shown in FIG.

  Performer M sings on stage SG in Hall H. And a large audience A listens to performer M's song. Part of the audience A has a ball B that emits light. The audience A with the ball B throws the ball B upward and throws it.

  The first camera 5a outputs an image from the side of the audience A to the control device 4 as position information. The second camera 5b outputs an image from above the spectator A to the control device 4 as position information. As the audience A throws the ball B upward, the ball B moving upward is imaged in the image of the first camera 5a. On the second camera 5b, if the ball B is thrown right above, the ball B moves slightly back and forth, but the video hardly changes.

  As shown in FIG. 3, the control device 4 determines whether or not the ball B has been thrown beyond a predetermined height based on the video from the first camera 5a (S10). The predetermined height can be set to an appropriate value in the control device 4, but can be set to 3 m or more, for example. This height is set to be higher than the height at which the audience A reaches out. In order to move the ball B to a height of 3 m or higher, the ball B must be thrown upward. Therefore, by letting the audience A perform the action of throwing and throwing the ball B as if launching a fireworks, it is possible to make the player feel that he / she is launching fireworks.

  If the control device 4 determines that the ball B has been thrown to a predetermined height or more, and the control device 4 has moved beyond the predetermined height, an image of the fireworks 1 a appears as a display image and is projected onto the transmission screen 2 via the video projector 3. (S20). At that time, the control device 4 outputs the fireworks sound as a sound effect from the first speaker 7a and the second speaker 7b through the amplifier 6 in synchronization with the image of the fireworks 1a (S30). The control device 4 projects the image of the fireworks 1 a onto the transmission screen 2, so that the transmitted fireworks 1 a is projected onto the wall surface W. Therefore, since the image of the fireworks 1a is projected twice on the transmission screen 2 and the wall surface W, an image with a sense of depth can be obtained.

  When projecting the fireworks 1a, the control device 4 detects the position in the direction parallel to the wall surface W from the image from the second camera 5b, and sets it as the appearance location of the fireworks 1a. By doing so, the audience A can feel more realistic because the fireworks 1a rises on the wall surface W corresponding to the position where the ball B is thrown and thrown. Further, the control device 4 projects the fireworks 1a of the color corresponding to the color onto the ball B, so that the spectator A can recognize the fireworks 1a corresponding to the thrown ball B. I can enjoy it.

  In the first embodiment, the control device 4 determines the position where the launch fireworks 1a appears and the color of the launch fireworks 1a according to the position where the ball B is thrown and thrown, and the color of the launch fireworks 1a. May be selected at random and projected. Further, the control device 4 may project the large fireworks 1a by recognizing that a predetermined number or more of the balls B have simultaneously reached a predetermined height or more.

  Since the first camera 5a and the second camera 5b are arranged so as to capture a direction orthogonal to the direction in which the wall surface W faces, the first camera 5a and the second camera 5b are transmissive screens. 2 and the wall surface W can be prevented from being directly imaged from the front. Therefore, it is possible to prevent the fireworks 1a from being imaged by the first camera 5a and the second camera 5b and the controller 4 from erroneously recognizing the fireworks 1a as the ball B. Further, the video camera may be arranged so as not to image the wall surface W on which the fireworks 1a are projected from the lateral position of the video projector 3 in an oblique direction. In the first embodiment, the first camera 5a is disposed so as to capture images from the side of the audience A, and the second camera 5b is disposed so as to capture images from above the audience A so that two cameras are used. However, one unit may be arranged by taking an image from the stage SG toward the video projector 3. In that case, the light of the video projector 3 is adjusted by adjusting the arrangement of the video camera so that the light of the video projector 3 is positioned lower than a predetermined height, or by causing the control device 4 to determine the color of the ball B. Make sure there is no problem even if it is reflected.

  In S10, when the ball B is thrown by the image from the first camera 5a but is less than the predetermined height, the control device 4 continues monitoring without doing anything.

  For example, the spectator A may throw the ball B straight above the head and take the ball B again. However, the spectator A can throw it to the surrounding audience A and throw it to the performer M on the stage SG. .

  If the ball B is thrown to the surrounding audience A at a height that exceeds a predetermined level, the ball B crosses the hands of the audience A one after another, and the fireworks 1a are continuously raised one after another. And a video like a fireworks display is projected on the wall W. Therefore, the rendering device 1 can make the audience A in the hall H feel a sense of unity by the fireworks display created by the entire audience A. In addition, since the audience A with the ball B throws to the performer M and the performer M throws back to the audience A, the ball B moves back and forth as if catching the ball between the audience A and the performer M. M can be felt close to the audience A and a sense of intimacy can be felt, and a sense of unity can be created not only between the audience A but also between the audience A and the performer M. Therefore, the atmosphere of the place can be further raised.

  As described above, the rendering device 1 according to the first embodiment is handed one after another between the spectators A so that the movement of the ball B becomes equal to or greater than a predetermined value regardless of whether the ball B is one or many. By throwing or throwing, you can enjoy the fireworks 1a that appear while participating. Therefore, since the audience A does not make a sound, the rendering device 1 can enjoy a lot of fireworks images without giving the audience A a sense of quarrel.

  In addition to the ball B having a spherical shape of about 20 cm, the ball A may have a size that the audience A cannot support alone. For example, if a ball made of a balloon material having a diameter of about 3 m is used, a plurality of spectators A can throw each other while helping each other and launch the fireworks 1a, so that a sense of unity between the spectators A can be further provided. When the size of the ball is such that the audience A cannot support it alone, it is desirable to use the rendering device 1 in a wide place such as a concert hall.

  In the first embodiment, the display image is the fireworks 1a, but instead of the fireworks 1a, the sponsor company's mark, logotype, heart mark, star mark, character, etc. are projected as a display image. May be. In addition, when projecting these display images, you can play voices that scream the company name, voices of characters, etc., and if it is a star mark, play sounds that are reminiscent of the display image, such as “Glitter”. You may do it. By making the display image a sponsor company's mark or logotype, it is easy to gather sponsor companies or gain the understanding of sponsor companies when installing the production device 1 at concerts and events.

(Embodiment 2)
A rendering device according to Embodiment 2 of the present invention will be described with reference to the drawings. FIG. 4 is a diagram showing a rendering device according to Embodiment 2 of the present invention. FIG. 5 is a side view of the hall in which the effect device shown in FIG. 4 is installed. 4 and 5, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof is omitted.

  The effect device 10 shown in FIG. 4 and FIG. 5, when the audience A shakes a shining stick ST as a light source, a display image that looks like a light-emitting sphere 10 a that appears from the tip of the stick ST is displayed from the stick ST. It is projected to move away while drifting.

  The rendering device 10 includes a wall surface W on which an image is projected and a transmissive screen 2, a video projector 11, a control device 12 that outputs an image to the video projector 11, a video camera 13 that outputs an image to the control device 12, An amplifier 6 that amplifies the sound signal from the control device 12, and a first speaker 7 a and a second speaker 7 b that output the sound signal from the amplifier 6 are provided. In FIG. 5, the control device 12, the amplifier 6, the first speaker 7a, and the second speaker 7b are not shown.

The wall surface W is a white projection surface located in the hole H. The wall surface W is directly projected as in the first embodiment, but a white screen may be provided in front of the wall surface W to provide a projection surface. The transmission screen 2 is provided so as to be inclined from the middle of the wall surface W in front of the hole H to the rear of the hole H. In the second embodiment, the transmissive screen 2 is provided. However, the transmissive screen 2 may be omitted by projecting directly to the audience A or a seat (not shown) on which the audience A sits.
Two video projectors 11 are provided: a first projector 11 a that is above the audience A and above the transmissive screen 2, and a second projector 11 b that is disposed to face the wall surface W. . The first projector 11a and the second projector 11b are general projectors that project a video by inputting a video signal from a video input terminal, similarly to the video projector 3 (see FIG. 1) used in the first embodiment. Can be used if present.

  The control device 12 detects the movement of the stick ST using the video from the video camera 13 as position information, and controls the first projector 11a and the second projector 11b to make the luminous bulb 10a appear and move, or BGM. Or output sound effects. The control device 12 and the video projector 11 (the first projector 11a and the second projector 11b) constitute a projection means.

  In the stick ST, two types of luminescent stock solutions that start a luminescence reaction when mixed are sealed in a resin tube, and the two types of luminescent stock solutions are mixed and chemically emitted by bending the tube. The stick ST may be one that emits light electrically, which includes an LED, a battery, a resistor, and the like, in addition to the one that emits light chemically.

  In the first embodiment, preparation is made so that a plurality of spectators A can hold the stick ST, but one stick may be used if it is handed over to the surrounding spectators A. However, the more the stick STs are provided to a certain extent, the more frequently the luminous bulb 10a appears, and the luminous bulb 10a is filled in the entire transmission screen 2 and the wall surface W, so that a fantastic image can be enjoyed. It is desirable to prepare the stick ST according to the number of spectators A.

  Although the stage SG (see FIG. 1) is not provided in the hall H as in the first embodiment, a stage on which the performer M performs or performs may be provided. In addition, when the hole H is wide enough to be projected only by the wall surface W, a white screen is connected instead of the projected wall surface W, or a plurality of video projectors 3 are provided for projection onto the white screen. In addition to the above, a screen, a video camera, and a speaker are provided according to the size of the hall H.

The rendering device 10 according to the second embodiment configured as described above will be described with reference to the drawings. FIG. 6 is a flowchart for explaining the operation of the effect device shown in FIG.
First, the control device 12 outputs BGM (S100). A spectator A having a stick ST is placed below the transmission screen 2 in the hole H. The video camera 13 outputs an image captured through the transmissive screen 2 to the control device 12. Since the audience A is located below the transmissive screen 2, the audience A itself is difficult to see, but since the stick ST emits light, the video camera 13 can take an image of the stick ST without any problem.

  The control device 12 specifies the position coordinates of the stick ST held by each spectator A based on the video from the overhead of the spectator A captured by the video camera 13. If the audience A shakes the stick ST or moves it by moving their arms, the position of the stick ST changes. The control device 12 detects a change in the position coordinate of the stick ST by comparing the previously specified position coordinate with the next specified position coordinate. The change in the position coordinates is set in the control device 12 with a threshold of, for example, about 10 cm or more so that it is not detected to the extent that the hand holding the stick ST shakes (S110).

  If it is determined that the stick ST has moved by a predetermined amount or more, the control device 12 causes the first projector 11a to project the light emitting bulb 10a to appear at the position of the transmission screen 2 corresponding to the position of the stick ST that has moved. (S120). The audience A feels as if the light emitting sphere 10a suddenly appeared on the transmission screen 2 at the tip of the stick ST by shaking the stick ST. The control device 12 not only causes the luminous bulb 10a to appear, but also outputs a sound effect that makes the appearance image to the amplifier 6 (S130). The control device 12 can effectively show the disappearance of the light bulb 10a to the audience A by outputting a sound effect when the light bulb 10a is played. When the light-emitting sphere 10a appears, the light-emitting sphere 10a is slowly moved on the transmission screen 2 away from the position of the stick ST in the direction of the wall surface W.

  This movement is a fantastic movement by allowing bubbles to rise while drifting in the water and fireflies to fly. Further, by projecting the microsphere 10b so as to show the trajectory of the movement of the luminous bulb 10a, it is possible to make the audience A feel the luminous bulb 10a as a strange creature.

  When the light emitting spheres 10a are moved to drift, the light emitting spheres 10a may overlap each other. When the control device 12 moves to a position where the light emitting spheres 10a overlap each other, the control device 12 outputs to the first projector 11a an image in which the light emitting sphere 10a bounces and the microsphere 10b scatters and disappears so as to scatter. In addition, when the position of the light-emitting sphere 10a that appears and the position of the stick ST overlap, the control device 12 outputs an image in which the light-emitting sphere 10a is similarly flipped and the microsphere 10b is scattered. As described above, when the light emitting spheres 10a overlap each other, or when the light emitting sphere 10a and the stick ST overlap each other, the light emitting sphere 10a disappears so that the substance is not an image but an entity. It can make the audience A feel like something. Accordingly, since the light emitting spheres 10a projected as if they appeared by swinging the stick ST each other disappear, the images of the light emitting spheres 10a projected so as to be disturbed are displayed. Each can recognize that is creating.

  When the light bulb 10a is moved to reach the wall surface W, the control device 12 causes the second projector 11b to raise the light bulb 10a so as to rise from the connection portion between the wall surface W and the transmission screen 2 (S140). . By moving the light emitting sphere 10a from the transmissive screen 2 above the audience A to the wall surface W, the movement of the light emitting sphere 10a can improve the stereoscopic effect and the depth.

  On the wall surface W, the light-emitting sphere 10a and the stick ST do not overlap each other, but when the light-emitting spheres 10a overlap each other, the control device 12 extinguishes the light-emitting sphere 10a so that it can play. In S110, if the movement of the stick ST is less than a predetermined value based on the video from the video camera 13, the control device 12 does nothing and continues monitoring.

  As described above, the rendering device 10 according to the second embodiment swings or moves the arm by moving the stick ST so that the movement of the stick ST is greater than or equal to the predetermined value by the stick ST of the audience A. Thus, the user can enjoy the light-emitting sphere 10a that appears while participating. Therefore, since the audience A does not emit a sound, the rendering device 10 can entertain the video of the luminous bulb 10a in a large amount without giving the audience A a sense of quarrel.

  In the second embodiment, in addition to the light source being the stick ST, a bracelet or a ring incorporating an infrared LED can be used. Since the light source is an infrared LED built in a bracelet or a ring, since the light source is not separated from the audience A, it is possible to prevent a deviation from occurring in the appearance position of the light emitting sphere 10a projected as a display image. .

  Further, although the display image is the light emitting sphere 10a, instead of the light emitting sphere 10a, a sponsor company mark, logotype, heart mark, star mark, character, or the like may be projected as a display image. In addition, when projecting these display images, you can play voices that scream the company name, voices of characters, etc., and if it is a star mark, play sounds that are reminiscent of the display image, such as “Glitter”. You may do it. By making the display image a sponsor company's mark or logotype, it is easy to gather sponsor companies or gain the understanding of sponsor companies when installing the production device 10 at a concert or event.

  In the second embodiment, the light emitting spheres 10a are overlapped so that the light emitting spheres 10a are extinguished so that the light emitting spheres 10a can be flipped. And the size may be gradually increased. If the luminous bulb 10a is a heart symbol, the heart symbol that the audience A or the performer appears will gradually increase, so that the feeling of everyone's feelings can be expressed one by one. it can.

  The production device of the present invention and the production method of the present invention can not only enjoy watching videos but also attending in large numbers, so that the atmosphere of the place can be raised, so various kinds of live concerts, circus, stage productions, museums, art galleries, etc. It is suitable for various commercial facilities such as cultural facilities and department stores and shopping malls. Further, the present invention can also be applied to the production at the waiting time of the screening in the movie theater or the production at the encore of the live concert. Furthermore, the present invention can also be applied to the production of a reception held at a wedding hall.

It is a figure which shows the whole production | presentation apparatus which concerns on Embodiment 1 of this invention. It is the figure which looked at the hall | hole where the production | presentation apparatus shown in FIG. 1 was installed from the side. 4 is a flowchart for explaining the operation of the effect device shown in FIG. 1. It is a figure which shows the presentation apparatus which concerns on Embodiment 2 of this invention. It is the figure which looked at the hall | hole where the production | presentation apparatus shown in FIG. 4 was installed from the side. 5 is a flowchart for explaining the operation of the effect device shown in FIG. 4.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Staging device 1a Fireworks display 2 Transmission type screen 3 Video projector 4 Control device 5 Video camera 5a 1st camera 5b 2nd camera 6 Amplifier 7a 1st speaker 7b 2nd speaker 10 Directional device 10a Luminous bulb 10b Microsphere 11 Video projector 11a 1st 1 projector 11b 2nd projector 12 control device 13 video camera H hall SG stage W wall surface M performer A audience B ball ST stick

Claims (7)

A projection surface on which an image is projected;
Position detection means for outputting the position of one or more light sources as position information;
An effect device comprising: a projecting unit that projects an image that causes a display image to appear when the movement of the light source more than a predetermined amount is detected based on the position information.   The rendering device according to claim 1, wherein the projection unit determines that the light source has moved by a predetermined amount or more when the position of the light source becomes a predetermined height or more.   The rendering device according to claim 2, wherein the projection unit sets the display image as a fireworks display, and sets the predetermined height to a position higher than a height at which a spectator reaches out.   The rendering device according to claim 1, wherein the projection unit determines that the light source has moved by a predetermined amount or more when a position coordinate of the light source has changed by a predetermined value or more. The position detection means is a video camera that images the light source,
The rendering device according to any one of claims 1 to 4, wherein the video camera is arranged so as to capture a direction orthogonal to a direction in which the projection plane faces. The projection plane is a screen disposed on the back of the stage where the performer is located,
The rendering device according to any one of claims 1 to 5, wherein the position detection means outputs the position of the light source on a spectator seat as position information. The position detection means outputs the position of one or more light sources as position information,
An effect method for an effect device that projects an image that causes a display image to appear on a projection plane when movement of the light source exceeding a predetermined amount is detected based on the position information.

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