JP2018037836A - Image projection system, information processor, image projection method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible, in a digital signage configured by combining a plurality of surfaces, to efficiently utilize the plurality of surfaces.SOLUTION: An image projection system includes: division means for dividing one image into a plurality of divided images depending on positions and scales of a plurality of surfaces included in a predetermined areas; control means for performing control so as to project the plurality of divided images, via projectors corresponding to the respective plurality of surfaces, on respective projection surfaces corresponding to the plurality of surfaces; detection means for detecting occurrence of a malfunction related to projection of the plurality of divided images; and determination means for determining whether or not to continue utilization of the plurality of surfaces as a projection target, on the basis of a type of the malfunction detected by the detection means.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an image projection system, an information processing apparatus, an image projection method, and a program.

  In recent years, digital signage that distributes content such as moving images to an image projection apparatus such as a projector and projects the content on a large screen installed outdoors, in a store, in a public space or the like has been widely used. In the case of digital signage, content suitable for time and place can be projected in real time, so a high advertising effect can be expected.

  On the other hand, in order to realize large-scale digital signage using the image projection apparatus as described above, a flat surface with a certain size is required as a projection target. Therefore, in the case of digital signage using an image projection device, it is necessary to install a large screen in advance or to perform projection using an integrated plane such as a side wall surface of a building. There is a problem that there are limited places.

  On the other hand, for example, if one digital signage can be realized by combining and using a plurality of surfaces included in a predetermined area such as a window glass of a building, the application range of the digital signage is expanded. Can do. In particular, if it can be applied to a mid-to-high-rise building with a large number of window glasses, digital signage on a larger scale than before can be realized.

  However, if the number of image projecting devices increases with the increase in scale of digital signage, the possibility of problems occurring during projection increases.

  Also, when digital signage is realized using window glass, for example, when a trouble that takes time to recover occurs, the use of the window glass as a projection target is interrupted, so that it can be used as a normal window glass. Efficient use of window glass, such as switching, is required.

  The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to efficiently use a plurality of surfaces in a digital signage in which a plurality of surfaces are combined.

The image projection system according to each embodiment of the present invention has the following configuration. That is,
Division means for dividing one image into a plurality of divided images according to the positions and sizes of the plurality of surfaces included in the predetermined area;
Control means for controlling the plurality of divided images to be projected onto each of the projection planes corresponding to the plurality of planes via a projection device corresponding to each of the plurality of planes;
Detecting means for detecting the occurrence of a defect related to the projection of the plurality of divided images;
And determining means for determining whether or not to continue using the plurality of surfaces as projection targets based on the types of defects detected by the detecting means.

  According to each embodiment of the present invention, a plurality of surfaces can be efficiently used in digital signage in which a plurality of surfaces are combined.

It is a figure which shows the example of application of an image projection system. It is a figure for demonstrating operation | movement of each signage apparatus arrange | positioned in the position corresponding to each window glass of a building. It is a figure which shows an example of the system configuration | structure of an image projection system. It is a figure which shows an example of the hardware constitutions of information processing apparatus. It is a figure which shows an example of signage object information. It is a figure which shows an example of image information. It is a figure which shows an example of schedule information. It is a flowchart which shows the flow of a signage process. It is a figure which shows the function structure of the calibration part of information processing apparatus. It is a sequence diagram of a 1st calibration process. It is a figure which shows an example of the screen of the information processing apparatus displayed at the time of a 1st calibration process. It is a figure which shows an example of the calibration pattern image projected at the time of a 1st calibration process. It is a figure which shows another example of the calibration pattern image projected at the time of a 1st calibration process. It is a sequence diagram of a 2nd calibration process. It is a figure which shows an example of the white image projected at the time of a 2nd calibration process. It is a figure which shows the function structure of the image process part of information processing apparatus. It is a figure which shows the specific example of an image process. It is a flowchart which shows the flow of an image process. It is a flowchart which shows the flow of a 1st division | segmentation process. It is a figure which shows an example of a 1st division | segmentation process. It is a figure which shows the function structure of the signage control part of information processing apparatus. It is a flowchart which shows the flow of a signage control process. It is a detailed flowchart of a start control process and an end control process. It is a figure which shows the specific example of an automatic recovery process and a switching process. It is a figure which shows an example of a function structure of the monitoring apparatus. It is a figure which shows an example of the monitoring object management information. It is a flowchart which shows the flow of a monitoring process.

  Details of each embodiment will be described below with reference to the accompanying drawings. In the description of the specification and drawings according to each embodiment, components having substantially the same functional configuration are denoted by the same reference numerals, and redundant description is omitted.

[First Embodiment]
<1. Application example of image projection system>
First, an application example of the image projection system according to the first embodiment will be described. FIG. 1 is a diagram illustrating an application example of an image projection system. The example of FIG. 1 shows a state in which a large-scale digital signage is realized by using a plurality of window glasses (surfaces) attached to the outer surface of a building 110 that is a middle-rise building.

  As shown in FIG. 1, a plurality of window glasses (window glass group 120) are attached to the outer surface of the building 110 on the road side (in the example of FIG. 1, 30 window glasses). In the image projection system according to the first embodiment, for each of the plurality of window glasses (window glass group 120) attached to the outer surface of the building 110, each projection moving image included in the projection moving image group 130 from the inside. Project an image.

  Thereby, according to the image projection system which concerns on 1st Embodiment, the large-scale digital signage which consists of the area | region for 30 pieces of window glass (The example of FIG. 1 shows the scene where the huge tree was displayed. Can be realized). In addition, digital signage can be realized in a relatively conspicuous place such as the outer surface of the road side. That is, digital signage with high advertising effect can be realized.

  In addition, according to the image projection system according to the first embodiment, as compared with a digital signage that uses a large screen or a side wall surface of a building that does not have a window glass as in the past, it is digital. The application range of signage can be expanded.

  In addition, in the image projection system according to the first embodiment, when a plurality of window glasses are used as projection targets when projecting the projection moving image group 130 and the projection moving image group 130 is not projected. Used as normal window glass. Further, as a problem related to the projection of the projection moving image group 130, when a problem that takes time to recover occurs, the use as a projection target is immediately interrupted and switched to the use as a normal window glass.

  Thereby, according to the image projection system concerning a 1st embodiment, a plurality of windowpanes can be used efficiently now.

<2. Operation of the signage device>
Next, the operation of each signage device (in this embodiment, a projector (projection device), an electric screen (projection surface), and an illumination device) constituting the image projection system according to the first embodiment. explain.

  Drawing 2 is a figure for explaining operation of each signage device arranged in a position corresponding to each window glass of a building. (A)-(d) of FIG. 2 (A) has shown the operation | movement of a projector and an electric screen among each signage apparatus arrange | positioned inside each window glass of the building 110. FIG.

  As shown to (a) of FIG. 2 (A), the projector is arrange | positioned up and down inside each window glass of the building 110, and it is two projectors (upper projector) with respect to one window glass. And a lower moving projector) are used to project a moving image for projection. Thereby, even when the size of the window glass is large, an appropriate projection moving image can be projected.

  Moreover, as shown to (b) of FIG. 2 (A), the electric screen is arrange | positioned inside each window glass of the building 110. As shown in FIG. When projecting a moving image for projection using a projector, the light transmittance is changed by turning on the motorized screen so that each window glass is in a translucent state. The electric screen (projection surface) forms a light transmission surface together with the window glass (projection target).

  FIG. 2C shows a state in which the lamps of the upper projector and the lower projector are turned on after the electric screen is turned on. The upper projector has a projection range on the upper side of the window glass, and the lower projector has a projection range on the lower side of the window glass. The upper projector and the lower projector are adjusted so that a part of the projection range overlaps. That is, in the present embodiment, the projection of the moving image for projection onto the projection range corresponding to the size of the window glass is realized by two projectors.

  (D) of FIG. 2 (A) has shown the mode that the moving image for projection was projected by the upper side projector and the lower side projector. In the image projection system according to the present embodiment, one digital signage is realized as a whole by projecting a moving image for projection onto each motorized screen corresponding to each window glass included in the window glass group 120. . Therefore, for each motorized screen corresponding to each window glass, the projection moving image generated based on the moving image of a part of the original moving image (moving image provided by the advertiser) is vertically And is projected by two projectors.

  As shown in FIG. 2B, in the image projection system according to the first embodiment, the lighting device group 140 (lighting devices 140_1 to 140_6 is displayed in a state where the projection of the moving image group for projection 130 has been completed. ) Is turned on and the motorized screen is turned off.

  As described above, in the image projection system according to the first embodiment, the upper projector, the lower projector, the electric screen, and the illumination device group 140 operate in conjunction with each other.

<3. System configuration of image projection system>
Next, the system configuration of the image projection system according to the first embodiment will be described. FIG. 3 is a diagram illustrating an example of a system configuration of the image projection system. As shown in FIG. 3, the image projection system 300 includes projectors 310_1a to 310_30b, external memories 320_1a to 320_30b, electric screens 330_1 to 330_30, a control device 340, and illumination devices 140_1 to 140_6. The image projection system 300 includes a monitoring device 351, a monitoring server 352, a time server 360, an information processing device 370, an imaging device 381, and a color luminance meter 382.

  Note that the projectors 310_1a to 310_30b, the control device 340, the monitoring device 351, the monitoring server 352, the time server 360, and the information processing device 370 are communicably connected via a network 390. The projectors 310_1a to 310_30b, the control device 340, the information processing device 370, and the monitoring device 351 are connected to be communicable via a network 390.

  The projectors 310_1a to 310_30b are arranged up and down inside each window glass group 120 attached to a predetermined region on the outer surface of the building 110. As described above, since 30 window glasses are attached to a predetermined area on the outer surface of the building 110, 60 projectors are arranged in this embodiment.

  Each of the projectors 310_1a to 310_30b executes the first calibration process using the calibration pattern image so that the projection moving image is projected without distortion onto the projection range corresponding to the size of the window glass to be projected. . In addition, each of the projectors 310_1a to 310_30b performs the second calibration process using the white image so that the projection moving image is projected with a predetermined color on the window glass to be projected.

  Further, the projectors 310_1a to 310_30b read the designated projection moving images from the projection moving images respectively stored in the external memories 320_1a to 320_30b based on the projection start instruction from the information processing device 370. Furthermore, each of the projectors 310_1a to 310_30b projects the projection moving image read out onto the motorized screen corresponding to the window glass to be projected.

  The external memories 320_1a to 320_30b are connected to the projectors 310_1a to 310_30b, respectively. The external memories 320_1a to 320_30b store the projection moving images projected by the projectors 310_1a to 310_30b, respectively. The external memories 320_1a to 320_30b mentioned here include, for example, a USB (Universal Serial Bus) memory.

  The electric screens 330 </ b> _ <b> 1 to 330 </ b> _ <b> 30 are disposed inside the window glass groups 120 included in a predetermined region on the outer surface of the building 110. As described above, since 30 window glasses are attached to a predetermined area on the outer surface of the building 110, 30 electric screens are arranged in this embodiment.

  The electric screens 330_1 to 330_30 are connected to the control device 340 via a power cable, and the control device 340 individually controls the ON state and the OFF state. When the electric screens 330 </ b> _ <b> 1 to 330 </ b> _ <b> 30 are controlled to be in the ON state by the control device 340, the light transmission surface is in a semi-transparent state due to a decrease in light transmittance. On the other hand, when the electric screens 330 </ b> _ <b> 1 to 330 </ b> _ <b> 30 are controlled to be in the OFF state by the control device 340, the light transmission surface increases in light transmittance and becomes transparent.

  The control device 340 controls the electric screens 330_1 to 330_30 to the ON state based on the screen ON instruction from the information processing device 370. Further, the control device 340 controls the electric screens 330_1 to 330_30 to be in an OFF state based on the screen OFF instruction from the information processing device 370.

  Furthermore, the control device 340 controls the lighting devices 140_1 to 140_6 to be in an ON state based on the lighting ON instruction from the information processing device 370. In addition, the control device 340 controls the electrical decoration devices 140_1 to 140_6 to be in an OFF state based on the electrical decoration OFF instruction from the information processing device 370.

  The illumination devices 140_1 to 140_6 are connected to the control device 340 via a power cable, and the control device 340 controls the ON state and the OFF state.

  The monitoring device 351 monitors the projectors 310_1a to 330_30b, the control device 340, and the information processing device 370 via the network 390. When the monitoring device 351 detects a failure, the monitoring device 351 identifies the detected monitoring target and determines the type of the detected failure (a failure that can be automatically recovered or a failure that cannot be automatically recovered). Further, the monitoring device 351 notifies the information processing device 370 of the identified monitoring target and the determined defect type as a monitoring result.

  The monitoring server 352 sends an e-mail to a service person when a problem that cannot be automatically restored occurs.

  The time server 360 provides time information to the information processing device 370 in order to synchronize the time between the projectors 310_1a to 310_30b and the information processing device 370.

  The information processing device 370 is a device for controlling signage processing in the image projection system 300. The information processing apparatus 370 is installed with a calibration program, an image processing program, and a signage control program. The information processing apparatus 370 functions as a calibration unit 371, an image processing unit 372, and a signage control unit 373 by executing these programs.

  The calibration unit 371 executes the first calibration process and the second calibration process together with the projectors 310_1a to 310_30b. In addition, the calibration unit 371 calculates the correction parameters used when generating the projection moving images respectively projected by the projectors 310_1a to 310_30b by executing the first calibration process.

  Further, the calibration unit 371 calculates the RGB levels set in the projectors 310_1a to 310_30b by executing the second calibration process together with the projectors 310_1a to 310_30b.

  The image processing unit 372 is an example of a dividing unit. The image processing unit 372 reads the signage target information stored in the signage target information management unit 375 and the image information stored in the image information management unit 376, and uses the original moving image provided by the advertiser to project a moving image for projection Generate an image. The signage target refers to the building 110 in which large-scale digital signage is realized by the image projection system 300. Further, the signage target information includes information such as the position and size of each window glass of the window glass group 120 included in a predetermined area on the outer surface of the building 110. Furthermore, the image information includes information for managing various images, correction parameters, and the like used when generating the projection moving image.

  The image processing unit 372 uses the correction parameter calculated by the calibration unit 371 when generating the projection moving image.

  Further, the image processing unit 372 stores the divided still image (details will be described later) generated in the process of generating the projection moving image in the image information management unit 376. Furthermore, the image processing unit 372 transmits the projection moving images of the generated projection moving image group to the projectors 310_1a to 310_30b. Thereby, the projectors 310_1a to 310_30b store the respective moving images for projection in the external memories 320_1a to 320_30b.

  The signage control unit 373 is an example of a control unit. The signage control unit 373 performs signage control processing based on the schedule information stored in the schedule information management unit 377. For example, the signage control unit 373 transmits a projection start instruction to each of the projectors 310_1a to 310_30b according to the projection start time. Further, the signage control unit 373 transmits a screen ON instruction to the electric screens 330_1 to 330_30 according to the projection start time. Furthermore, the signage control unit 373 transmits an electrical decoration OFF instruction to the electrical decoration devices 140_1 to 140_6 according to the projection start time.

  However, when the signage control unit 373 receives a monitoring result from the monitoring device 351, the signage control unit 373 performs processing according to the monitoring result.

  When each of the projectors 310_1a to 310_30b executes the first calibration process, the imaging device 381 captures the calibration pattern images projected by the projectors 310_1a to 310_30b and transmits them to the information processing device 370. Note that the imaging device 381 and the information processing device 370 are connected via, for example, a USB cable.

  When each of the projectors 310_1a to 310_30b executes the second calibration process, the color luminance meter 382 measures the color temperature of each white image projected by each of the projectors 310_1a to 310_30b and transmits the measurement result to the information processing device 370. To do. Note that the color luminance meter 382 and the information processing device 370 are connected via, for example, a USB cable.

<4. Hardware configuration of information processing apparatus>
Next, the hardware configuration of the information processing apparatus 370 will be described. FIG. 4 is a diagram illustrating an example of a hardware configuration of the information processing apparatus.

  As illustrated in FIG. 4, the information processing apparatus 370 includes a CPU (Central Processing Unit) 401, a ROM (Read Only Memory) 402, and a RAM (Random Access Memory) 403. The CPU 401, ROM 402, and RAM 403 form a so-called computer. Furthermore, the information processing apparatus 370 includes an auxiliary storage unit 404, a display unit 405, an input unit 406, a network I / F (Interface) unit 407, and a USB I / F unit 408. Note that the hardware of the information processing apparatus 370 is connected to each other via a bus 409.

  The CPU 401 is a device that executes various programs (for example, a calibration program, an image processing program, a signage control program, etc.) stored in the auxiliary storage unit 404.

  The ROM 402 is a nonvolatile main storage device. The ROM 402 stores various programs and data necessary for the CPU 401 to execute various programs stored in the auxiliary storage unit 404. Specifically, a boot program such as BIOS (Basic Input / Output System) or EFI (Extensible Firmware Interface) is stored.

  The RAM 403 is a volatile main storage device such as a DRAM (Dynamic Random Access Memory) or an SRAM (Static Random Access Memory). The RAM 403 provides a work area that is expanded when various programs stored in the auxiliary storage unit 404 are executed by the CPU 401.

  The auxiliary storage unit 404 is an auxiliary storage device that stores various programs executed by the CPU 401 and various information used when the various programs are executed. The various information stored in the auxiliary storage unit 404 includes signage target information, image information, schedule information, various information managed by the image information, correction parameters, and the like. The signage target information management unit 375, the image information management unit 376, and the schedule information management unit 377 are realized by the auxiliary storage unit 404.

  The display unit 405 is a display device that displays various screens. The input unit 406 is an input device for inputting various information to the information processing apparatus 370. The network I / F unit 407 is an interface device for connecting to the network 390. The information processing device 370 performs communication with the projectors 310_1a to 310_30b, the control device 340, and the time server 360 via the network I / F unit 407.

  The USB I / F unit 408 is an interface device for connecting a USB cable. The information processing device 370 transmits and receives data to and from the imaging device 381 and the color luminance meter 382 via the USB I / F unit 408.

<5. Information stored in each management unit>
Next, various information (signage target information, image information, schedule information) stored in each management unit (signage target information management unit 375, image information management unit 376, schedule information management unit 377) of the information processing device 370 will be described. To do.

(1) Signage target information First, the signage target information stored in the signage target information management unit 375 will be described. FIG. 5 is a diagram illustrating an example of signage target information. As shown in FIG. 5A, the signage target information 500 is generated for each signage target. In this embodiment, the signage target ID of the building 110 is “S001”.

  Further, as shown in FIG. 5A, the signage target information 500 includes information items such as “floor”, “window ID”, “window information”, “projector ID”, “motorized screen ID”, “ The illumination device ID "is included.

  The “floor” stores the floor number of the floor to which the window glass group 120 included in the predetermined area on the outer surface of the building 110 is attached.

  The “window ID” stores an identifier for identifying each window glass of the window glass group 120 included in a predetermined area on the outer surface of the building 110.

  The “window information” further includes “position”, “horizontal size”, and “vertical size”. Here, the “position”, “horizontal size”, and “vertical size” of each window glass included in the “window information” will be described with reference to FIG.

  As illustrated in FIG. 5B, the image projection system 300 realizes large-scale digital signage using a predetermined area 510 on the outer surface of the building 110. At this time, the image projection system 300 defines a reference point (origin) and a reference axis (x axis, y axis) when specifying the layout of each window glass included in the predetermined area 510.

  In FIG. 5B, a point 520 indicates the origin in the predetermined area 510. An axis 530 indicates the x axis when the point 520 is the origin in the predetermined area 510, and an axis 540 indicates the y axis when the point 520 is the origin in the predetermined area 510.

  As shown in FIG. 5B, the layout (position, horizontal size, vertical size) of each window glass is uniquely specified by defining the predetermined area 510, the origin 520, the x axis 530, and the y axis 540. Can do.

  Returning to the description of FIG. The “position” stores coordinates indicating the position of the lower left corner of each window glass in the predetermined area 510 on the outer surface of the building 110. In the case of FIG. 5A, the coordinates of the position of the lower left corner of the window glass of window ID = “W201” are the origin (0, 0).

The “horizontal size” stores the length (width) of each window glass in the horizontal direction. For example, in the case of the window glass with window ID = “W201”, the coordinates of the position of the lower left corner are (0, 0), and the coordinates of the position of the lower right corner are (x ₁₂ , 0). Therefore, the horizontal size = “x ₁₂ ”. In the case of the window glass with window ID = “W202”, the coordinates of the position of the lower left corner are (x ₂₁ , 0), and the coordinates of the position of the lower right corner are (x ₂₂ , 0). Therefore, the horizontal size = “x ₂₂ −x ₂₁ ”.

The “vertical size” stores the length (height) of each window glass in the vertical direction. For example, in the case of the window glass with window ID = “W201”, the coordinates of the position of the lower left corner are (0, 0), and the coordinates of the position of the upper left corner are (0, y ₁₂ ). Therefore, the vertical size = “y ₁₂ ”. In the case of the window glass with window ID = “W301”, the coordinates of the lower left corner position are (0, y ₂₁ ), and the coordinates of the upper left corner position are (0, y ₂₂ ). Therefore, the vertical size = “y ₂₂ −y ₂₁ ”.

  “Projector ID” stores an identifier for identifying a projector arranged at a position corresponding to each window glass. In the example of FIG. 5A, projectors identified by projector ID = “PJ201A” and “PJ201B” are respectively arranged at positions corresponding to the window glass identified by window ID = “W201”. Is shown.

  “Electric screen ID” stores an identifier for identifying the electric screen arranged at a position corresponding to each window glass. The example of FIG. 5A shows that the electric screen identified by the electric screen ID = “SC201” is arranged at the position corresponding to the window glass identified by the window ID = “W201”. Yes.

  In the “lighting device ID”, an identifier for identifying the light lighting device arranged at a position corresponding to any window glass on each floor is stored. The example of FIG. 5A shows that the electrical decoration device identified by the electrical decoration device ID = “E200” is arranged on the floor identified by the floor = “2F”.

(2) Image Information Next, image information stored in the image information management unit 376 will be described. FIG. 6 is a diagram illustrating an example of image information. As shown in FIG. 6, the image information 600 includes “moving image ID”, “signage target ID”, “window ID”, and “projector ID” as information items. Further, the image information 600 includes “correction parameter ID”, “calculation date / time”, “divided still image group ID”, “projection moving image ID”, and “generation date / time” as information items.

  The “moving image ID” stores an identifier for identifying the original moving image provided by the advertiser. The example of FIG. 6 indicates that the moving image identified by “C100” as the moving image ID is stored in the image information management unit 376.

  The “signage target ID” stores an identifier for identifying the building 110 that realizes large-scale digital signage using the projection moving image group 130 generated based on the original moving image provided by the advertiser. Is done. The example of FIG. 6 uses the projection moving image group 130 generated based on the moving image identified by the moving image ID = “C100” in the building 110 identified by the signage target ID = “S001”. It shows that large-scale digital signage is realized.

  The “window ID” stores an identifier for identifying each window glass of the window glass group 120 included in the predetermined area 510 on the outer surface of the building 110 identified by the signage target ID = “S001”.

  The “projector ID” stores an identifier for identifying a projector disposed at a position corresponding to each window glass identified by the window ID.

  The “correction parameter ID” stores an identifier for identifying the correction parameter calculated by the calibration unit 371. As described above, since the calibration unit 371 calculates a correction parameter for each window glass by executing the first calibration process, the correction parameter ID is stored in association with the window ID. The “calculation date / time” stores the date / time when the correction parameter was calculated.

  The “divided still image group ID” is used to identify the divided still image group generated in the process of generating the projection moving image group based on the moving image identified by the moving image ID = “C100”. An identifier is stored.

  The “projection video ID” includes an identifier for identifying each projection video included in the projection video group generated based on the video identified by the video ID = “C100”. Stored.

  In “generation date and time”, the date and time when each projection moving image identified by the projection moving image ID is generated is stored.

  The example of FIG. 6 shows that the projection moving image ID = “M201A”, “M201B”,... Is generated from the moving image with the moving image ID = “C100”.

  Further, according to the example of FIG. 6, the projection moving image with the projection moving image ID = “M201A” has the projector ID = “PJ201A” arranged at the position corresponding to the window glass with the window ID = “W201”. Projected by a projector.

  Further, according to the example of FIG. 6, when generating the projection moving image with the projection moving image ID = “M201A”, the correction parameter (correction parameter ID = “P201”) is set to “May 25, 2016”. It has been calculated.

  Further, according to the example of FIG. 6, the divided still image group of the divided still image group ID = “C201” is corrected by the correction parameter (correction parameter ID = “P201”). Further, according to the example of FIG. 6, based on the divided still image group with the corrected divided still image group ID = “C201”, the projection moving image ID = “M201A” on “June 10, 2016”. And “M201B” projection moving images are generated.

(3) Schedule Information Next, schedule information stored in the schedule information management unit 377 will be described. FIG. 7 is a diagram illustrating an example of schedule information. As shown in FIG. 7, schedule information 700 is generated for each signage target. Also, as shown in FIG. 7, the schedule information 700 includes “time” and “signage device” as information items.

  In “Time”, a time zone in which the window glass group 120 of the building 110 identified by the signage target ID = “S001” can be used as digital signage is described. According to the example of FIG. 7, it can be used as digital signage in the time zone between 10:00 and 22:00.

  “Signage device” further includes “projector”, “motorized screen”, and “lighting device”. The “projector” describes a time zone during which the projection moving image is projected by the projectors 310_a to 310_30b. According to the example in FIG. 7, the projection moving image group generated based on the moving image ID = “C100” is projected between 20:00 and 21:00.

  “Electric screen” describes a time period in which the electric screens 330_1 to 330_30 are in the ON state. The time zone in which the electric screens 330_1 to 330_30 are in the ON state is the same as the time zone (20:00 to 21:00) when the projection moving image group is projected by the projectors 310_1a to 310_30b.

  In the “lighting device”, a time zone in which the lighting devices 140_1 to 140_6 are turned on is described. In the present embodiment, the illumination devices 140_1 to 140_6 are in the ON state in the time zone after the evening (in the example of FIG. 7, after 17:00). However, the time zone (between 20:00 and 21:00) when the moving image group for projection is projected by the projectors 310_1a to 310_30b is excluded.

<6. Signage processing flow in image projection system>
Next, the flow of signage processing in the image projection system 300 will be described. FIG. 8 is a flowchart showing the flow of signage processing. When the installation of the image projection system 300 is completed in the building 110, the image projection system 300 executes the signage process shown in FIG.

  Specifically, in step S801, the image projection system 300 performs calibration processing (first calibration processing, second calibration processing, and the like) of the projectors 310_1a to 310_30b.

  In step S802, the image projection system 300 performs image processing (generation of projection moving images ("M201A" to "M705B"), transmission of projection moving images to the projectors 310_1a to 310_30b, and the like).

  In step S803, the image projection system 300 performs a signage control process. Specifically, the image projection system 300 includes projection start / end control of the moving image group for projection by the projectors 310_1a to 310_30b, ON / OFF control of the electric screens 330_1 to 330_30, and ON / OFF control of the lighting devices 140_1 to 140_6. I do.

  Note that while the signage control process is being performed in step S803, the monitoring apparatus 351 performs the monitoring process and detects the occurrence of a defect in the monitoring target.

<7. Details of calibration process>
Next, details of the calibration process (step S801) in the image projection system 300 will be described.

(1) Functional Configuration of Calibration Unit First, the functional configuration of the calibration unit 371 of the information processing apparatus 370 that executes calibration processing will be described. FIG. 9 is a diagram illustrating a functional configuration of the calibration unit of the information processing apparatus.

  As illustrated in FIG. 9, the calibration unit 371 includes a first calibration unit 911 and a second calibration unit 912. The first calibration unit 911 is activated during the first calibration process and executes various processes. Specifically, the first calibration unit 911 calculates a correction parameter used when the image processing unit 372 generates a projection moving image. The first calibration unit 911 stores the calculated correction parameter in the image information management unit 376 and stores the correction parameter ID indicating the calculated correction parameter and the calculation date in the image information 600 in association with the window ID. . Accordingly, the image processing unit 372 can generate a projection moving image without distortion when projected by the projectors 310_1a to 310_30b.

  The second calibration unit 912 is activated during the second calibration process and executes various processes. Specifically, the second calibration unit 912 calculates the RGB level so that the projection moving image is projected with a predetermined color, and sets it for the projectors 310_1a to 310_30b.

(2) Flow of First Calibration Process Next, details of the first calibration process will be described based on the sequence diagram of FIG. 10 while sequentially referring to FIGS. FIG. 10 is a sequence diagram of the first calibration process.

  As illustrated in FIG. 10, in step S <b> 1001, the operator 1000 inputs an activation instruction for activating the first calibration unit 911 to the information processing apparatus 370.

  In response to the activation instruction being input by the operator 1000, in step S1002, the first calibration unit 911 is activated, and the display unit 405 of the information processing apparatus 370 is subject to the first calibration process (projector). ) Is displayed for the operator 1000 to select.

  In step S1003, the operator 1000 selects, from the selection screen displayed on the display unit 405, the window glass on which the target for executing the first calibration process is arranged.

  In response to the window glass being selected by the operator 1000, the first calibration unit 911 identifies a projector disposed at a position corresponding to the selected window glass. In steps S1004 and S1005, the first calibration unit 911 transmits a lamp ON instruction to each of the identified projectors.

  FIG. 11 is a diagram illustrating an example of a screen of the information processing apparatus displayed during the first calibration process. When the first calibration unit 911 is activated, a selection screen 1100 is displayed on the display unit 405 of the information processing device 370. As shown in FIG. 11, the selection screen 1100 includes a layout 1110 of the window glass group 120 of the building 110.

  The operator 1000 selects a window glass on which a target for executing the first calibration process is arranged by pressing a rectangular button indicating the window glass in the layout 1110 and pressing a completion button 1120. The example of FIG. 11 shows a state where the rectangular button 1111 is pressed and the completion button 1120 is pressed.

  The window glass specified by the rectangular button 1111 is the window glass 1128 with the window ID = “W703”. As shown in the lower side of FIG. 11, a projector 310_28a (projector ID = “PJ703A”) and a projector 310_28b (projector ID = “PJ703B”) are arranged at positions corresponding to the window glass 1128.

  Accordingly, in step S1004, the first calibration unit 911 transmits a lamp ON instruction to the projector 310_28a. In step S1005, the first calibration unit 911 transmits a lamp ON instruction to the projector 310_28b. At this time, it is assumed that the electric screen 330_28 (electric screen ID = “SC703”) of the window glass 1128 is in the ON state.

  Subsequently, in step S1006, the first calibration unit 911 generates a calibration pattern image. The first calibration unit 911 generates two different calibration pattern images as calibration pattern images.

  In step S1007, the first calibration unit 911 transmits the first calibration pattern image to the projector 310_28a. In step S1008, the first calibration unit 911 transmits the second calibration pattern image to the projector 310_28b.

  In step S1009, the projector 310_28a projects the first calibration pattern image transmitted from the first calibration unit 911. In step S1010, the projector 310_28b projects the second calibration pattern image transmitted from the first calibration unit 911.

  In step S <b> 1011, the operator 1000 inputs an imaging instruction to the imaging device 381 in order to capture the projected first and second calibration pattern images using the imaging device 381.

  In step S1012, the imaging device 381 performs imaging processing on the projected first and second calibration pattern images, and in step S1013, the imaging device 381 transmits the imaging result to the information processing device 370.

  FIG. 12 is a diagram illustrating an example of a calibration pattern image projected during the first calibration process. As shown in FIG. 12, the projector 310_28a projects the first calibration pattern image, and the projector 310_28b projects the second calibration pattern image. The operator 1000 captures the projected first and second calibration pattern images using the imaging device 381, and transmits the imaging result to the information processing device 370.

  Returning to the description of FIG. In step S1014, the operator 1000 inputs an exchange instruction for exchanging the first calibration pattern image and the second calibration pattern image.

  In step S1015, the first calibration unit 911 transmits the second calibration pattern image to the projector 310_28a in response to the replacement instruction. In step S1016, the first calibration unit 911 transmits the first calibration pattern image to the projector 310_28b.

  In step S1017, the projector 310_28a projects the second calibration pattern image transmitted from the first calibration unit 911. In step S1018, the projector 310_28b projects the first calibration pattern image transmitted from the first calibration unit 911.

  In step S <b> 1019, the operator 1000 inputs an imaging instruction to the imaging device 381 in order to capture the projected second and first calibration pattern images using the imaging device 381.

  In step S1020, the imaging device 381 performs imaging processing on the projected second and first calibration pattern images. In step S1021, the imaging device 381 transmits the imaging result to the information processing device 370.

  FIG. 13 is a diagram illustrating another example of the calibration pattern image projected during the first calibration process. As shown in FIG. 13, the projector 310_28a projects the second calibration pattern image, and the projector 310_28b projects the first calibration pattern image. The operator 1000 captures the projected second and first calibration pattern images using the imaging device 381, and transmits the imaging result to the information processing device 370.

  Returning again to the description of FIG. In step S <b> 1022, the operator 1000 inputs to the first calibration unit 911 to specify the imaging result used for calculating the correction parameter. In step S <b> 1023, the first calibration unit 911 reads the imaging result designated by the operator 1000.

  In step S1024, the operator 1000 performs input for instructing calculation of the correction parameter. In step S1025, the first calibration unit 911 calculates a correction parameter based on the read imaging result.

  The correction parameters calculated by the first calibration unit 911 include various geometric corrections such as alignment correction, scale alignment correction, and distortion correction for the first and second calibration pattern images. Geometric parameters are included. This geometric parameter varies depending on various factors such as an installation position of the electric screen and the projection apparatus, and individual differences between optical apparatuses of the projection apparatus. For this reason, geometric parameters often differ for each window glass (combination of a motorized screen and a projection device). In an image processing unit 372 to be described later, by performing correction using an appropriate geometric parameter for each window glass, a part of the projection moving image in the projection moving image group 130 projected as shown in FIG. 1 is obtained. Avoid the occurrence of problems such as distorted display.

  The first calibration unit 911 stores the calculated correction parameter in the image information management unit 376. In addition, the first calibration unit 911 associates the correction parameter ID (for example, “P703”) and the calculation date (for example, “2016.5.25”) with the window ID (for example, “W703”) to generate an image. Stored in information 600.

(3) Flow of Second Calibration Process Next, the details of the second calibration process will be described based on the sequence diagram of FIG. 14 with reference to FIG. FIG. 14 is a sequence diagram of the second calibration process.

  As illustrated in FIG. 14, in step S <b> 1401, the operator 1000 inputs an activation instruction for activating the second calibration unit 912 to the information processing apparatus 370.

  In response to the activation instruction being input by the operator 1000, in step S1402, the second calibration unit 912 is activated, and the display unit 405 of the information processing device 370 is subject to the second calibration process (projector). ) Is displayed for the operator 1000 to select.

  In step S1403, the operator 1000 selects, from the selection screen displayed on the display unit 405, the window glass on which the target for executing the second calibration process is arranged.

  In response to the window glass being selected by the operator 1000, the second calibration unit 912 identifies the motorized screen disposed at a position corresponding to the selected window glass. In step S1404, the second calibration unit 912 transmits a screen OFF instruction to the identified electric screen.

  The example in FIG. 14 shows a case where the window glass 1128 with the window ID = “W703” is selected and the screen OFF instruction is transmitted to the corresponding electric screen 330_28, as in the first calibration process. .

  In response to the screen OFF instruction transmitted from the second calibration unit 912, the electric screen 330_28 is turned off in step S1405.

  In step S1406, the second calibration unit 912 transmits a lamp ON instruction to the projector 310_28a (projector ID = “PJ703A”) disposed at the position corresponding to the window glass 1128 with the window ID = “W703”. Thereby, the lamp of the projector n′310_28a is turned on.

  In step S1407, the operator 1000 inputs a projection instruction for projecting a white image to the projector 310_28a to the information processing apparatus 370.

  In step S1408, the second calibration unit 912 transmits a white image projection instruction to the projector 310_28a in response to the white image projection instruction from the operator 1000.

  In step S1409, the projector 310_28a performs all white projection according to the white image projection instruction transmitted from the second calibration unit 912.

  In step S1410, the operator 1000 inputs, to the color luminance meter 382, a measurement instruction for measuring the color temperature of the window glass projected by the projector 310_28a.

  In step S1411, the color luminance meter 382 measures the color temperature of the window glass 1128 projected all white. In step S1412, the operator 1000 inputs the measured color temperature as a measurement result to the information processing device 370.

  In step S1413, the second calibration unit 912 performs a conversion process for converting the color temperature input by the operator 1000 into an RGB level.

  In step S1414, the second calibration unit 912 transmits the RGB level calculated by performing the conversion process to the projector 310_28a.

  In step S1415, the projector 310_28a sets the RGB level transmitted from the second calibration unit 912.

  FIG. 15 is a diagram illustrating an example of a white image projected during the second calibration process. As shown in FIG. 15, the projector 310_28a projects a white image onto the window glass 1128 when the electric screen 330_28 is in the OFF state. The operator 1000 measures the color temperature of the window glass 1128 using the color luminance meter 382 and inputs the measurement result to the information processing device 370. Thereby, the information processing device 370 calculates the RGB level, and the projector 310_28a is set with the RGB level corresponding to the measurement result.

  Returning to the description of FIG. In step S1416, the operator 1000 inputs an instruction to end the second calibration process to the information processing apparatus 370. In step S1417, the second calibration unit 912 transmits a screen ON instruction to the electric screen 330_28 in response to the end instruction input by the operator 1000.

  In response to the screen ON instruction transmitted from the second calibration unit 912, the electric screen 330_28 is turned on in step S1418.

<8. Details of image processing>
Next, details of the image processing (step S802) in the image projection system 300 will be described.

(1) Functional Configuration of Image Processing Unit First, a functional configuration of the image processing unit 372 of the information processing apparatus 370 that executes image processing will be described. FIG. 16 is a diagram illustrating a functional configuration of the image processing unit of the information processing apparatus.

  As illustrated in FIG. 16, the image processing unit 372 includes a target information acquisition unit 1611, an image information acquisition unit 1612, an inversion unit 1613, and a decoding unit 1614. The image processing unit 372 includes a first dividing unit 1615, a correcting unit 1616, a second dividing unit 1617, an encoding unit 1618, and a transmitting unit 1619.

  The target information acquisition unit 1611 reads the signage target information from the signage target information management unit 375 and notifies the first division unit 1615 of it.

  The image information acquisition unit 1612 reads the moving image provided by the advertiser from the image information management unit 376 and notifies the reversing unit 1613 of the moving image.

  The inversion unit 1613 inverts the left and right of the moving image notified from the image information acquisition unit 1612. In the image projection system 300, a transparent or translucent light transmission surface (window glass and motorized screen) is projected from the inside, and the projection result is visually recognized from the outside. For this reason, it is necessary to reverse the left and right in advance. As described above, the reversing unit 1613 performs the reversing process, so that it is possible to avoid a situation in which a moving image whose left and right are reversed from the moving image intended by the advertiser is visually recognized. The inversion unit 1613 notifies the decoding unit 1614 of the video image after inversion.

  The decoding unit 1614 extracts a still image group by performing a decoding process on the moving image for which left and right are determined and decomposing the moving image into frame units. The decoding unit 1614 notifies the first dividing unit 1615 of each still image included in the extracted still image group in order.

  The first division unit 1615 performs a first division process for dividing each still image sequentially notified from the decoding unit 1614 into a plurality of still images based on the signage target information 500 notified from the target information acquisition unit 1611. . Thereby, the 1st division part 1615 can generate | occur | produce the division | segmentation still image (division image) according to the position of the window glass, and the size of the window glass.

  In addition, the first dividing unit 1615 divides the plurality of divided still images acquired by performing the first dividing process on all the still images included in the still image group for each divided still image of the same window glass. Thus, a plurality of divided still image groups corresponding to the number of window glasses are generated. The first dividing unit 1615 stores the generated plurality of divided still image groups in the image information management unit 376.

  Further, the first dividing unit 1615 attaches a divided still image group ID to each of the generated plurality of divided still image groups, and stores them in the image information 600 in association with the window IDs.

  Furthermore, the first dividing unit 1615 notifies the correcting unit 1616 of each of the generated plurality of divided still image groups in association with the window ID.

  The correcting unit 1616 corrects each of the plurality of divided still image groups notified from the first dividing unit 1615 using the correction parameter corresponding to the window ID. In addition, the correction unit 1616 notifies the second divided unit 1617 of the plurality of divided still image groups after correction.

  The second dividing unit 1617 divides each of the corrected plurality of divided still image groups notified from the correcting unit 1616 into units of projectors. Since the plurality of divided still image groups after correction notified by the correction unit 1616 are generated in window glass units, the second division unit 1617 divides them into projector units.

  The encoding unit 1618 encodes a plurality of corrected still image groups divided for each projector in units of projectors, and generates a plurality of projection moving images corresponding to the number of projectors. The encoding unit 1618 stores, in the image information 600, the projection moving image ID for identifying the generated plurality of projection moving images and the generation date and time in association with the projector ID.

  The transmission unit 1619 transmits the plurality of projection moving images generated by the encoding unit 1618 to the corresponding projectors. In addition, since the transmission unit 1619 transmits the projection moving image to the corresponding projector in advance, the signage control unit 373 only needs to transmit a projection start instruction to the projector at the start of projection. . Accordingly, it is possible to reduce the possibility of delay in projecting the projection moving image, as compared with the case where the projection moving image is transmitted to the projector at the start of projection.

(2) Specific Example of Image Processing Next, a specific example of image processing by the image processing unit 372 will be described. FIG. 17 is a diagram illustrating a specific example of image processing.

  In FIG. 17, a moving image 1710 is a moving image with a moving image ID = “C100” provided by an advertiser, and is stored in the image information management unit 376 in the MPEG4 format. When the image information acquisition unit 1612 reads the moving image 1710 and notifies the reversing unit 1613, the reversing unit 1613 inverts the left and right of the moving image 1710 and generates a reversed moving image 1711.

  The inverted moving image 1711 is decoded by the decoding unit 1614 and extracted as a still image group including a plurality of still images. Further, for the extracted still image group, the first dividing unit 1615 performs a first dividing process based on the signage target information 500 to generate a plurality of divided still image groups.

  A plurality of divided still image groups (divided still image groups 1720_1, 1720_2,... 1720_30) are each assigned a divided still image group ID (C201, C202,... C705), and correspond to a window ID. In addition, the image information 600 is stored.

  In addition, the correction unit 1616 corrects each of the plurality of divided still image groups 1720_1, 1720_2, ... 1720_30 using the corresponding correction parameter. For example, the correction unit 1616 corrects the divided still image group 1720_1 using the correction parameter 1730_1 (correction parameter ID = “P201”). The correction unit 1616 corrects the divided still image group 1720_2 using the correction parameter 1730_2 (correction parameter ID = “P202”). Further, the correction unit 1616 corrects the divided still image group 1720_30 using the correction parameter 1730_30 (correction parameter ID = “P705”).

  The corrected divided still image groups 1720_1, 1720_2,... 1720_30 corrected by the correction parameters are each divided into projector units by the second dividing unit 1617. For example, the corrected divided still image group 1720_1 is divided into a divided still image group 1740_1a for the projector 310_1a and a divided still image group 1740_1b for the projector 310_1b.

  Similarly, the corrected divided still image group 1720_30 is divided into a divided still image group 1740_30a for the projector 310_30a and a divided still image group 1740_30b for the projector 310_30b.

  The encoding unit 1618 performs an encoding process on the corrected divided still image groups 1740_1a to 1740_30b divided into projectors by the second dividing unit 1617. As a result, the encoding unit 1618 generates a moving image for projection in the MPEG4 format.

  For example, the encoding unit 1618 encodes the divided still image group 1740_1a for the projector 310_1a to generate the projection moving image 1750_1a. The encoding unit 1618 generates a projection moving image 1750_1b by encoding the divided still image group 1740_1b for the projector 310_1b. Further, the encoding unit 1618 encodes the divided still image group 1740_30a for the projector 310_30a and the divided still image group 1740_30b for the projector 310_30b to generate projection moving images 1750_30a and 1750_30b.

  The encoding unit 1618 associates the generated projection moving images 1750_1a to 1750_30b with the projection moving image IDs (M201A, M201B,... M705A, M705B) and the generation date and time with the projector ID. Stored in information 600.

  In addition, the transmission unit 1619 transmits the generated plurality of projection moving images 1750_1a to 1750_30b to the corresponding projector. For example, the transmission unit 1619 transmits the projection moving image 1750_1a to the projector 310_1a. In addition, the projection moving image 1750_1b is transmitted to the projector 310_1b. Further, the transmission unit 1619 transmits the projection moving image 1750_30a to the projector 310_30a, and the projection moving image 1750_30b to the projector 310_30b.

(3) Flow of Image Processing Next, the flow of image processing will be described based on the flowchart of FIG. FIG. 18 is a flowchart showing the flow of image processing.

  In step S <b> 1801, the image information acquisition unit 1612 acquires a moving image from the image information management unit 376.

  In step S1802, the target information acquisition unit 1611 acquires the signage target information 500 from the signage target information management unit 375.

  In step S1803, the reversing unit 1613 performs left-right reversing processing on the moving image acquired in step S1801.

  In step S1804, the decoding unit 1614 extracts a still image group by decoding the inverted moving image.

  In step S1805, the first dividing unit 1615 substitutes 1 for the still image counter n.

  In step S1806, the first division unit 1615 performs the first division process on the nth still image. Details of the flowchart of the first division process will be described later.

  In step S1807, the first division unit 1615 determines whether or not the first division process has been performed for all still images. If it is determined in step S1807 that there is a still image that has not been subjected to the first division processing (in the case of No in step S1807), the process proceeds to step S1808. In step S1808, the first dividing unit 1615 increments the still image counter n, and then returns to step S1806.

  On the other hand, if it is determined in step S1807 that the first division process has been performed for all still images, the process advances to step S1809.

  In step S1809, the first dividing unit 1615 generates divided still image groups for the number of window glasses by dividing the plurality of divided still images generated for each still image into divided still images corresponding to the same window glass. And stored in the image information management unit 376. Further, the first dividing unit 1615 attaches a divided still image group ID to each generated divided still image group and stores it in the image information 600 in association with the window ID.

  In step S1810, the correction unit 1616 substitutes 1 for the divided still image group counter m.

  In step S1811, the correction unit 1616 corrects the mth divided still image group among the divided still image groups generated in step S1809, using the corresponding correction parameter.

  In step S1812, the second dividing unit 1617 performs the second dividing process on the m-th divided still image group after correction.

  In step S1813, the second dividing unit 1617 determines whether correction processing and second division processing have been performed for all the divided still image groups generated in step S1809.

  If it is determined in step S1813 that there is a divided still image group that has not been subjected to the correction process and the second division process (in the case of No in step S1813), the process proceeds to step S1814.

  In step S1814, the correction unit 1616 increments the divided still image group counter m, and the process returns to step S1811.

  On the other hand, if it is determined in step S1813 that correction processing and second division processing have been performed for all divided still image groups (Yes in step S1813), the process proceeds to step S1815.

  In step S1815, the encoding unit 1618 encodes the divided still image group subjected to the second division processing in units of projectors, thereby generating a plurality of projection moving images corresponding to the number of projectors. Also, the encoding unit 1618 stores the generation date and time in the image information 600 for the generated plurality of projection moving images.

  In step S1816, the transmission unit 1619 transmits the generated plurality of projection moving images to the corresponding projectors.

(4) Details of First Division Processing Next, details of the first division processing (step S1806) will be described using FIG. 19 and FIG. FIG. 19 is a flowchart showing the flow of the first division process. FIG. 20 is a diagram illustrating an example of the first division process.

  In step S1901, the first dividing unit 1615 reads the nth still image. In FIG. 20, a still image 2000 is assumed to be the nth still image read by the first dividing unit 1615.

  In step S1902, the first dividing unit 1615 substitutes “2” for the floor counter f.

  In step S1903, the first dividing unit 1615 substitutes “1” for the window counter g that counts the number of window glasses per floor.

In step S1904, the first dividing unit 1615 reads the “position”, “horizontal size”, and “vertical size” of the window ID = “Wf0g” from the signage target information 500. Here, since “2” is assigned to f and “1” is assigned to g, the position of window ID = “W201” ((0, 0)), horizontal size (x ₁₂ ), vertical size ( y ₁₂ ) is read out.

  In step S1905, the first dividing unit 1615 converts the position, horizontal size, and vertical size read in step S1904 into pixels on the still image 2000 according to the comparison between the still image 2000 and the predetermined area 510.

  As shown in FIG. 20, in the present embodiment, the still image 2000 is assumed to be composed of 4000 pixels horizontally and 8000 pixels vertically. In this case, the pixel on the still image 2000 corresponding to the position = “(0, 0)” is the pixel at the position = “(0, 0)”.

In addition, the pixel on the still image 2000 corresponding to the horizontal size (x ₁₂ ) is a pixel calculated by (x ₁₂ / x ₅₂ ) × 4000. Furthermore, the pixel on the still image 2000 corresponding to the vertical size (y ₁₂ ) is a pixel calculated by (y ₁₂ / y ₆₂ ) × 8000.

  In step S1906, the first dividing unit 1615 cuts out the rectangular area 2001 specified based on the pixel calculated in step S1905 from the still image 2000, and generates a divided still image.

  In step S1907, the 1st division part 1615 determines whether the 1st division process was performed about all the windowpanes of f floor. If it is determined in step S1907 that there is a window glass that has not been subjected to the first division process (in the case of No in step S1907), the process proceeds to step S1908.

  In step S1908, the first dividing unit 1615 increments the window counter g, and then returns to step S1904. As a result, “2” is substituted for g.

In step S1904, the first dividing unit 1615 determines, based on the signage target information 500, the position of window ID = “W202” ((x ₂₁ , 0)), the horizontal size (x ₂₂ −x ₂₁ ), and the vertical size (y ₁₂ ). Is read.

  In step S1905, the first dividing unit 1615 converts the position, horizontal size, and vertical size read in step S1904 into pixels on the still image 2000.

As shown in FIG. 20, the pixel on the still image 2000 corresponding to the position ((x ₂₁ , 0)) is a pixel calculated by (x ₂₁ / x ₅₂ ) × 4000. In addition, the pixel on the still image 2000 corresponding to the horizontal size (x ₂₂ −x ₂₁ ) is a pixel calculated by (x ₂₂ / x ₅₂ ) × 4000. Furthermore, the pixel on the still image 2000 corresponding to the vertical size (y ₁₂ ) is a pixel calculated by (y ₁₂ / y ₆₂ ) × 8000.

  In step S1906, the first dividing unit 1615 cuts out the rectangular region 2002 specified based on the pixel calculated in step S1905 from the still image 2000, and generates a divided still image.

  In step S1907, the 1st division part 1615 determines whether the 1st division process was performed about all the windowpanes of f floor. If it is determined in step S1907 that there is a window glass that has not been subjected to the first division process (in the case of No in step S1907), the process proceeds to step S1908. Thereafter, in step S1906, the processes in steps S1904 to S1906 are repeated until the rectangular area 2005 is cut out.

  If it is determined in step S1907 that the first division processing has been performed for all the windowpanes on the f floor (Yes in step S1907), the process proceeds to step S1909.

  In step S1909, the first division unit 1615 determines whether or not the first division process has been performed for all floors. If it is determined in step S1909 that there is a floor that has not been subjected to the first division process (in the case of No in step S1909), the process proceeds to step S1910.

  In step S1910, the first dividing unit 1615 increments the floor counter f, and then returns to step S1903. Thereafter, the processing in steps S1904 to S1907 is repeated until the rectangular area 2030 is cut out at the floor counter f = 7.

  If it is determined in step S1909 that the first division process has been performed for all floors (Yes in step S1909), the process returns to step S1807 in FIG.

<9. Details of signage control processing>
Next, details of the signage control process (step S803) in the image projection system 300 will be described.

(1) Functional Configuration of Signage Control Unit First, a functional configuration of the signage control unit 373 of the information processing apparatus 370 that executes the signage control process will be described. FIG. 21 is a diagram illustrating a functional configuration of a signage control unit of the information processing apparatus.

  As illustrated in FIG. 21, the signage control unit 373 includes a synchronization unit 2101, a start control unit 2102, an end control unit 2103, and a recovery unit 2104.

  The synchronization unit 2101 outputs time information. Further, the synchronization unit 2101 synchronizes the time between the projectors 310_1a to 310_30b and the information processing device 370. Specifically, after receiving time information from the time server 360 and correcting the time information to be output, the corrected time information is transmitted to the projectors 310_1a to 310_30b. When the projectors 310_1a to 310_30b receive the time information from the synchronization unit 2101, the projectors 310_1a to 310_30b correct the time information managed internally. Thereby, the synchronization unit 2101 can synchronize the time between the projectors 310_1a to 310_30b and the information processing device 370 based on accurate time information.

  The start control unit 2102 reads the schedule information stored in the schedule information management unit 377 and identifies the projection start time. In addition, the start control unit 2102 transmits an operation instruction at the start of projection to each signage device based on the identified projection start time.

  The end control unit 2103 reads the schedule information stored in the schedule information management unit 377 and identifies the projection end time. Further, the end control unit 2103 transmits an operation instruction at the end of projection to each signage device based on the identified projection end time.

  The recovery unit 2104 transmits a projection end instruction to the projectors 310_1a to 310_30b when receiving a monitoring result (a monitoring target in which a failure has occurred, a type of failure, etc.) from the monitoring device 351. In addition, the restoration unit 2104 functions as a determination unit and determines whether or not to continue using the window glass group 120 as a projection target by determining whether or not the type of defect is a defect that can be automatically recovered. Determine whether.

  Further, when it is determined that the use as a projection target is continued, the restoration unit 2104 executes an automatic restoration process. On the other hand, when it is determined that the use as a projection target is not continued, the restoration unit 2104 determines that the window glass group 120 is used as a normal window glass. Furthermore, when it determines with using as a normal window glass, the recovery part 2104 performs the switching process for switching the window glass group 120 to the use as a normal window glass.

(2) Flow of Signage Control Processing Next, the flow of signage control processing by the signage control unit 373 will be described. FIG. 22 is a flowchart showing the flow of signage control processing. When the image processing by the image processing unit 372 is completed, the signage control process shown in FIG. 22 can be executed.

  In step S2201, the synchronization unit 2101 and the start control unit 2102 execute a start control process for starting projection of the projection moving image. Details of the start control process (step S2201) will be described later.

  In step S2202, the recovery unit 2104 determines whether a monitoring result (a monitoring target in which a failure has occurred, a type of the failure, or the like) has been received from the monitoring device 351. If it is determined in step S2202 that the monitoring result has been received (in the case of Yes in step S2202), the process proceeds to step S2203.

  In step S2203, the restoration unit 2104 transmits a projection end instruction to the projectors 310_1a to 310_30b. Thereby, it is possible to avoid a situation in which projection of the projection moving image group 130 continues in a state where a part of the projection moving image group 130 is missing.

  In step S <b> 2204, the recovery unit 2104 determines whether there is a problem that can be automatically recovered based on the type of problem included in the monitoring result. If it is determined in step S2204 that the problem can be automatically restored (Yes in step S2204), it is determined that the use of the window glass group 120 as a projection target is continued, and automatic restoration processing (step S2205) is performed. To S2207).

  Specifically, in step S2205, the restoration unit 2104 transmits a restart instruction to the projector that is a monitoring target (monitoring target in which a failure has occurred) included in the monitoring result. Thereby, the projector to be monitored is turned on after the power is once turned off. As a result, the restoration unit 2104 can automatically restore the projector to be monitored.

  In step S2206, the restoration unit 2104 determines whether or not the projector to be monitored has been correctly restarted. If it is determined in step S2206 that the system has been restarted correctly (Yes in step S2206), the process proceeds to step S2207.

  In step S2207, the restoration unit 2104 transmits a projection start instruction to the projectors 310_1a to 310_30b. As a result, the projection of the projection moving image group 130 is automatically resumed, and the automatic restoration process is completed.

  On the other hand, if it is determined in step S2204 that it is not a malfunction that can be automatically restored (in the case of No in step S2204), use of the window glass group 120 as a projection target is interrupted, and use as a normal window glass. Determine to switch to.

  If it is determined in step S2206 that the system has not been restarted correctly (in the case of No in step S2206), the use of the window glass group 120 as a projection target is interrupted, and the window glass is used as a normal window glass. Determine to switch.

  When it determines with switching to the utilization as a normal window glass, the recovery part 2104 performs a switching process (step S2210-S2212).

  Specifically, in step S2210, restoration unit 2104 transmits a lamp OFF instruction to projectors 310_1a to 310_30b. Thereby, the lamps of the projectors 310_1a to 310_30b are turned off.

  In step S2211, the restoration unit 2104 transmits a screen OFF instruction to the electric screens 330_1 to 330_30. Thereby, the electric screens 330_1 to 330_30 are turned off, and the light transmission surface is in a transparent state.

  In step S2212, the restoration unit 2104 transmits an illumination ON instruction to the illumination devices 140_1 to 140_6. Thereby, the illumination devices 140_1 to 140_6 are turned on. As a result, the window glass group 120 used as the projection target can be used as a normal window glass, and the switching process is completed.

  In step S2213, the recovery unit 2104 notifies the monitoring server 352 of the monitoring result received in step S2202. As a result, the monitoring server 352 sends the notified monitoring result (monitoring target in which a defect has occurred, type of defect, etc.) to the service person by e-mail. As a result, a repair work is performed by a service person for a failure that cannot be automatically recovered.

  On the other hand, if it is determined in step S2202 that the monitoring result has not been received, the process proceeds to step S2208. In step S2208, the end control unit 2103 determines whether or not the projection end time is approaching. The end control unit 2103 identifies the projection end time based on the schedule information 700 and compares it with the current time output by the synchronization unit 2101 to determine whether or not the projection end time is approaching.

  If it is determined in step S2208 that the projection end time has not been approached (No in step S2208), the process returns to step S2202. On the other hand, if it is determined in step S2208 that the projection end time has been approached (Yes in step S2208), the process proceeds to step S2209.

  In step S2209, the end control unit 2103 executes an end control process for ending projection of the projection moving image, and ends the signage control process. Details of the end control process (step S2209) will be described later.

(3) Details of Start Control Process and End Control Process Next, details of the start control process (step S2201) and the end control process (step S2209) will be described.

  FIG. 23 is a detailed flowchart of the start control process and the end control process. As shown in FIG. 23A, in step S2301, the start control unit 2102 reads the schedule information 700 stored in the schedule information management unit 377. In addition, the start control unit 2102 identifies the projection start time based on the read schedule information 700.

  In step S2302, the start control unit 2102 transmits a lamp ON instruction to the projectors 310_1a to 310_30b at a timing according to the identified projection start time. Accordingly, the lamps of the projectors 310_1a to 310_30b are turned on.

  In step S2303, the synchronization unit 2101 receives the time information from the time server 360, corrects the time information managed in the information processing apparatus 370, and transmits the corrected time information to the projectors 310_1a to 310_30b. To do.

  In step S2304, the start control unit 2102 transmits a projection start instruction to the projectors 310_1a to 310_30b at a timing according to the identified projection start time. Thereby, in each of the projectors 310_1a to 310_30b, processing for starting projection of the projection moving image is performed.

  In step S2305, the start control unit 2102 transmits an electrical decoration OFF instruction to the electrical decoration devices 140_1 to 140_6 at a timing according to the identified projection start time. Thereby, the illumination devices 140_1 to 140_6 are turned off.

  In step S2306, the start control unit 2102 transmits a screen ON instruction to the electric screens 330_1 to 330_30 at a timing according to the identified projection start time. Thereby, each of the electric screens 330_1 to 330_30 is turned on, and the light transmission surface is translucent.

  As described above, the start control processing by the synchronization unit 2101 and the start control unit 2102 ends, and the process returns to step S2202 in FIG.

  Next, the flow of the end control process will be described. As illustrated in FIG. 23B, in step S2311, the end control unit 2103 transmits a projection end instruction to the projectors 310_1a to 310_30b at a timing according to the identified projection end time. Thus, the projectors 310_1a to 310_30b end the projection of the projection moving image.

  In step S2312, the end control unit 2103 transmits a screen OFF instruction to the electric screens 330_1 to 330_30 at a timing according to the identified projection end time. Thereby, each of the electric screens 330_1 to 330_30 is turned off, and the light transmission surface is in a transparent state.

  In step S2313, the end control unit 2103 transmits an electrical decoration ON instruction to the electrical decoration devices 140_1 to 140_6 at a timing according to the identified projection start time. Thereby, the illumination devices 140_1 to 140_6 are turned on.

  In step S2315, the end control unit 2103 transmits a lamp OFF instruction to the projectors 310_1a to 310_30b. Thereby, the lamps of the projectors 310_1a to 310_30b are turned off.

  Thus, the termination control process by the termination control unit 2103 is terminated, and the signage control process in FIG. 22 is terminated.

(4) Specific Example of Automatic Recovery Process and Switching Process Next, a specific example of the automatic recovery process and switching process in the signage control process (FIG. 22) will be described. FIG. 24 is a diagram illustrating a specific example of the automatic recovery process and the switching process.

  FIG. 24A is a diagram illustrating a state in which the monitoring result is received from the monitoring device 351 after the start control process (step S2201) is executed in the signage control process. The example of FIG. 24A shows a case where a problem has occurred in the projectors with the projector ID = “PJ302A” and “PJ302B” (see reference numeral 2401).

  When the recovery unit 2104 receives the monitoring result, the restoration unit 2104 transmits a projection end instruction to the projectors 310_1a to 310_30b regardless of the type of the malfunction. FIGS. 24B and 24D show a state where the restoration unit 2104 transmits a projection end instruction to the projectors 310_1a to 310_30b.

  Here, the recovery unit 2104 determines whether or not the failure type included in the monitoring result is a failure that can be automatically recovered. And when it determines with it being a malfunction which can be recovered | restored automatically, the recovery | restoration part 2104 determines with the utilization as a projection object of the window glass group 120 continuing, and performs an automatic recovery process.

  Specifically, the restoration unit 2104 transmits a restart instruction to the projectors with the projector IDs = “PJ302A” and “PJ302B”, and determines that the projector has restarted correctly, the projector 310_1a to 310_30b A projection start instruction is transmitted. As a result, as shown in FIG. 24C, the projection moving image group 130 is projected onto the window glass group 120 again.

  On the other hand, when it is determined that it is not a malfunction that can be automatically restored, the restoration unit 2104 executes a switching process of interrupting the use of the window glass group 120 as a projection target and switching to the use as a normal window glass.

  Specifically, the restoration unit 2104 transmits a lamp OFF instruction to the projectors 310_1a to 310_30b. The restoration unit 2104 transmits a screen OFF instruction to the electric screens 330_1 to 330_30, and transmits an electric decoration ON instruction to the electric decoration device group 140 (140_1 to 140_6). Thereby, as shown in FIG.24 (e), the window glass group 120 will be in a transparent state, and the illumination device group 140 (140_1-140_6) will be in an ON state (that is, the window glass group 120 is a normal window). Will be used as glass).

<10. Description of monitoring device>
Next, the monitoring device 351 will be described. Note that the hardware configuration of the monitoring device 351 is substantially the same as the hardware configuration of the information processing device 370 (FIG. 4), and thus the description thereof is omitted here. Hereinafter, the functional configuration of the monitoring device 351 and the flow of monitoring processing will be described.

(1) Functional Configuration of Monitoring Device FIG. 25 is a diagram illustrating an example of a functional configuration of the monitoring device. A monitoring program and a monitoring result notification program are installed in the monitoring device 351, and the monitoring device 351 functions as a monitoring unit 2501 and a monitoring result notification unit 2502 by executing the program.

  The monitoring unit 2501 monitors the states of the projectors 310_1 to 310_30b, the control device 340, and the information processing device 370 at a predetermined period, and detects a failure when a failure related to the projection moving image projection occurs. Functions as a means. In addition, when the monitoring unit 2501 detects the occurrence of a failure, the monitoring unit 2501 identifies the monitoring target in which the failure has occurred, and refers to the monitoring target management information stored in the monitoring target management unit 2503 to thereby determine the type of the failure. Is identified.

  When the monitoring unit 2501 detects a failure, the monitoring result notification unit 2502 notifies the information processing apparatus 370 of the monitoring target and the type of the failure in which the failure has occurred as a monitoring result. Further, the notified monitoring result is stored in the log storage unit 2504 as log information.

(2) Monitoring Target Management Information Next, the monitoring target management information stored in the monitoring target management unit 2503 will be described. FIG. 26 is a diagram illustrating an example of the monitoring target management information. As shown in FIG. 26, the monitoring target management information 2600 includes, as information items, “monitoring target”, “defect content”, “defect type”, and “occurrence timing”.

  The “monitoring target” stores a device that is a target for monitoring by the monitoring unit 2501 to determine whether or not a failure has occurred. In this embodiment, since the monitoring unit 2501 monitors the projectors 310_1a to 310_30b, the control device 340, and the information processing device 370, the “monitoring target” is any one of “projector”, “control device”, and “projector”. Is stored.

In “contents of defect”, all the problems related to the projection of the projection moving image are stored as the contents of the defect detected by the monitoring unit 2501. In the “contents of defect”, “video is not updated” means that the projection by the projector is frozen. The monitoring unit 2501 determines that “video is not updated” when the projector acquires information on the position of the currently projected frame from the projection moving image and satisfies the following expression.
Current time> projection start time + reproduction time to the acquired frame position + α
Α is, for example, 1 minute.

  In the “defect type”, the detected defect type is stored. In the present embodiment, the monitoring unit 2501 classifies whether the detected failure is a failure that can be automatically recovered or a failure that cannot be automatically recovered. Therefore, either “automatic recovery is possible” or “automatic recovery is not possible” is stored in the “defect type”.

  In “occurrence timing”, information about the timing at which “contents of defect” occurs is stored. In other words, the monitoring unit 2501 monitors whether a failure has occurred in the monitoring target at the timing stored in “occurrence timing”.

  For example, regarding the monitoring target = “information processing apparatus”, the content of the defect = “no ping response” is monitored by the monitoring unit 2501 regardless of the projection of the moving image for projection. It is determined that a failure of “Recoverable” has occurred.

  Further, regarding the monitoring target = “projector”, the content of the defect = “fan” is monitored by the monitoring unit 2501 before or during the projection of the projection moving image, and when a failure is detected, “automatic recovery is possible”. It is determined that the problem "" has occurred.

(3) Flow of Monitoring Processing Next, the flow of monitoring processing by the monitoring device 351 will be described. FIG. 27 is a flowchart showing the flow of the monitoring process.

  In step S2701, the monitoring unit 2501 determines whether or not the timing for monitoring any of the defects stored in the “defect content” of the monitoring target management information 2600 has been reached. If it is determined in step S2701 that the timing for monitoring any failure has not been reached (No in step S2701), the process waits until it is determined that the monitoring timing has been reached.

  On the other hand, if it is determined in step S2701 that the monitoring timing has been reached (Yes in step S2701), the process proceeds to step S2702. In step S2702, the monitoring unit 2501 determines whether or not a failure has occurred with respect to the “contents of the failure” that has reached the monitoring timing. If no failure is detected in step S2701, it is determined that no failure has occurred (No in step S2701), and the flow proceeds to step S2707.

  On the other hand, if a problem is detected in step S2702, it is determined that a problem has occurred (Yes in step S2702), and the process proceeds to step S2703. In step S2703, the monitoring unit 2501 identifies a monitoring target in which a failure has occurred.

  In step S2704, the monitoring unit 2501 determines the type of failure based on the monitoring target management information 2600.

  In step S2705, the monitoring result notification unit 2502 notifies the information processing apparatus 370 of a monitoring result including the monitoring target specified in step S2703 and the type of failure determined in step S2704.

  In step S2706, the monitoring result notification unit 2502 records the monitoring result in the log storage unit 2504 in association with the time information.

  In step S2707, the monitoring unit 2501 determines whether to end the monitoring process. If it is determined in step S2707 that the monitoring process is not terminated (No in step S2707), the process returns to step S2701. On the other hand, if it is determined in step S2707 that the monitoring process is to be terminated (Yes in step S2707), the monitoring process is terminated.

<11. Summary>
As is clear from the above description, in the image projection system 300 according to the present embodiment,
-Reverse the moving image provided by the advertiser. Further, based on the position and size of a plurality of window glasses included in a predetermined area on the outer surface of the building, a still image of each frame extracted from the inverted moving image is divided, and a plurality of still images are divided from each still image. A divided still image is generated.
Use the divided still images of each frame corresponding to the same window glass to generate divided still image groups for the number of window glasses and store them in the image information management unit.
・ Calibration processing is performed on projectors arranged at positions corresponding to each of the plurality of window glasses included in a predetermined area on the outer surface of the building, and a group of still images is divided using correction parameters generated based on the result of the calibration processing. to correct.
The corrected divided still image group is further divided according to the number of projectors arranged at a position corresponding to one window glass, and encoded to generate a projection moving image group for each projector.
Projecting each of the projection moving images of the generated projection moving image group onto each of the electric screens corresponding to the plurality of window glasses via the corresponding projector.

  Thereby, digital signage combining a plurality of surfaces can be realized.

In the image projection system 300 according to the present embodiment,
・ Detects the occurrence of a failure in the monitoring target, and determines whether the failure can be recovered automatically or cannot be recovered automatically.
If it is determined that the fault can be automatically restored, it is determined that the window glass used as a projection target is to continue to be used as a projection target. Also, if it is determined that it is a problem that cannot be automatically restored, it is determined that the window glass used as the projection target will not continue to be used as the projection target, and switching processing is performed so that it can be used as a normal window glass. I do.

  Thereby, in digital signage combining a plurality of surfaces, the plurality of surfaces can be used efficiently.

[Other Embodiments]
In the first embodiment, the monitoring device 351 is configured to determine the type of failure. However, the monitoring device 351 notifies the information processing device 370 of the content of the failure, and the information processing device 370 detects the failure. It is good also as a structure which determines a kind.

  Further, in the first embodiment, the projector 351 detects the projector malfunction and notifies the information processing device 370, and the information processing device 370 notifies the monitoring server 352 of the monitoring result. . However, the notification order is not limited to this, and the information processing device 370 may detect a failure of the projector and notify the monitoring device 351, and the monitoring device 351 may notify the monitoring server 352 of the monitoring result. Good.

  Moreover, in the said 1st Embodiment, although it did not mention in particular about the malfunction of an electric screen and an electrical decoration apparatus, the notification order of the malfunction of an electric screen and an electrical decoration apparatus is also arbitrary. For example, the monitoring device 351 may be notified directly from the electric screen and the illumination device, and the monitoring device 351 may notify the monitoring server 352 of the monitoring result. Alternatively, the monitoring device 351 may be notified from the electric screen and the illumination device via the control device 340, and the monitoring device 351 may notify the monitoring server 352 of the monitoring result.

  In the first embodiment, the monitoring device 351 is provided separately from the information processing device 370. However, some or all of the functions of the monitoring device 351 are realized by the information processing device 370. Also good. Alternatively, on the contrary, part of the function of the recovery unit 2104 of the information processing device 370 may be realized by the monitoring device 351.

  In the first embodiment, in the switching process, each instruction is transmitted in the order of the lamp OFF instruction, the screen OFF instruction, and the illumination ON instruction. However, the transmission order is not limited to this.

  In the first embodiment, no particular reference is made to the start position when resuming projection in the automatic restoration process, but the start position can be any position. For example, the projection may be resumed from the first frame of the projection moving image, or the projection may be resumed from the frame next to the frame projected when the projection end instruction is transmitted.

  In the first embodiment, the information processing device 370 has been described as including the calibration unit 371, the image processing unit 372, and the signage control unit 373. However, some of these functions are performed in other signage devices. It may be realized.

  In the first embodiment, the case where one predetermined area is defined in the building 110 and one kind of digital signage is realized has been described. However, the window glass group 120 of the building 110 may be divided into two predetermined regions so as to realize two types of digital signage. In this case, when a failure to be monitored is detected, it is determined to which predetermined area the signage device in which the failure is detected belongs, and for each signage device included in the predetermined area to which the signage device in which the failure is detected belongs, Perform recovery or switching. As a result, digital signage can be continued for a predetermined area where no problem has occurred.

  Moreover, in the said 1st Embodiment, although the window glass attached to the predetermined area | region of the outer surface of the building 110 was demonstrated as a projection object, a projection object is not limited to a window glass, It is another several surface. Also good. Further, the plurality of surfaces are not limited to those attached to a predetermined region on the outer surface of the building 110, and may be a plurality of surfaces attached to a predetermined region inside the building 110, or an object other than a building. It may be a plurality of surfaces attached to.

  Moreover, in the said 1st Embodiment, although the signage apparatus demonstrated as what points out a projector (projection apparatus), a motorized screen, and an electrical decoration apparatus, a signage apparatus is not limited to this. For example, there are devices already installed in the building 110, such as a lighting device inside the building 110, a lighting device that illuminates a wall surface or a signboard of the building 110 from the outside of the building 110, and an object or a signboard installed in the building 110. , May be included in the signage device.

  It should be noted that the present invention is not limited to the configuration shown here, such as a combination with other elements in the configuration described in the above embodiment. These points can be changed without departing from the spirit of the present invention, and can be appropriately determined according to the application form.

110: Building 120: Window glass group 130: Projection moving image group 310_1a-310_30b: Projector 320_1a-320_30b: External memory 330_1-330_30: Electric screen 340: Control device 360: Time server 370: Information processing device 371: Calibration unit 372 : Image processing unit 373: Signage control unit 375: Signage target information management unit 376: Image information management unit 377: Schedule information management unit 500: Signage target information 510: Predetermined region 600: Image information 700: Schedule information 2101: Synchronization unit 2102 : Start control unit 2103: end control unit 2104: recovery unit 2501: monitoring unit 2502: monitoring result notification unit 2503: monitoring target management unit 2504: log storage unit 2600: monitoring target management information

JP 2011-135477 A

Claims (10)

Division means for dividing one image into a plurality of divided images according to the positions and sizes of the plurality of surfaces included in the predetermined area;
Control means for controlling the plurality of divided images to be projected onto each of the projection planes corresponding to the plurality of planes via a projection device corresponding to each of the plurality of planes;
Detecting means for detecting the occurrence of a defect related to the projection of the plurality of divided images;
An image projection system comprising: a determination unit that determines whether or not to continue using the plurality of surfaces as projection targets based on a type of defect detected by the detection unit.   2. The control unit according to claim 1, wherein when the malfunction is detected by the detection unit, the control unit controls to finish projecting the plurality of divided images onto the projection planes corresponding to the plurality of planes. The image projection system described in 1.   When the determination unit determines to continue using the plurality of surfaces as projection targets, the control unit performs control so as to restart the projection apparatus in which the occurrence of a malfunction is detected by the detection unit. The image projection system according to claim 2.   The control unit controls the plurality of divided images to be projected onto the projection planes corresponding to the plurality of planes when the restart of the projection apparatus in which the malfunction is detected by the detection unit is completed. The image projection system according to claim 3.   When the determination unit determines not to continue using the plurality of surfaces as projection targets, the control unit performs control so that all the projection apparatuses corresponding to the plurality of surfaces are turned off. The image projection system according to claim 2, wherein:   When the determination unit determines that the use of the plurality of surfaces as the projection target is not continued, the control unit is formed by each of the plurality of surfaces and a projection surface corresponding to each of the plurality of surfaces. The image projection system according to claim 2, wherein the light transmission surface is controlled to increase the transmittance.   When the determination unit determines that the use of the plurality of surfaces as the projection target is not continued, the control unit performs control so that the power of the illumination device corresponding to each of the plurality of surfaces is turned on. The image projection system according to claim 2. Division means for dividing one image into a plurality of divided images according to the positions and sizes of the plurality of surfaces included in the predetermined area;
Control means for controlling the plurality of divided images to be projected onto each of the projection planes corresponding to the plurality of planes via a projection device corresponding to each of the plurality of planes;
Determination means for determining whether or not to continue using the plurality of surfaces as projection targets based on the type of the defect when the occurrence of the defect related to the projection of the plurality of divided images is detected. An information processing apparatus characterized by that. A division step of dividing one image into a plurality of divided images according to the positions and sizes of the plurality of surfaces included in the predetermined area;
A control step of controlling the plurality of divided images to be projected onto each of the projection planes corresponding to the plurality of planes via a projection device corresponding to each of the plurality of planes;
A determination step of determining whether or not to continue using the plurality of surfaces as projection targets based on the type of the defect when the occurrence of the defect related to the projection of the plurality of divided images is detected. An image projection method characterized by the above. A division step of dividing one image into a plurality of divided images according to the positions and sizes of the plurality of surfaces included in the predetermined area;
A control step of controlling the plurality of divided images to be projected onto each of the projection planes corresponding to the plurality of planes via a projection device corresponding to each of the plurality of planes;
A determination step of determining whether or not to continue using the plurality of surfaces as projection targets based on the type of the defect when the occurrence of the defect related to the projection of the plurality of divided images is detected. A program to make it run.