JP2015119339A - Information processing device, control device of the same, information processing system, information processing method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide information processing which allows a plurality of pieces of information processing to operate cooperatively to provide suitable information processing, and a control device of the information processing.SOLUTION: An information processing device has first projection means which performs projection to a first projection range. The information processing device, capable of communicating with other information processing device having second projection means which performs projection to a second projection range having an area overlapped with the first projection range, has: request means which requests the other information processing device to stop the projection to the overlapped area of the second projection means, when conditions for projection by the first projection means to the overlapped area are satisfied; and control means which controls the first projection means to perform projection to the overlapped area.

Description

  The present invention relates to a technique for controlling a cooperative operation of a plurality of information processing apparatuses.

  In recent years, opportunities to use projectors instead of computer displays have increased. In contrast to liquid crystal displays, the projector can project and display digital images on any plane such as a wall or desk, and the projection surface can be resized by the distance to the projection surface or the zoom function. It has the advantage of being. On the other hand, when the projection surface is enlarged, there is a drawback that the resolution of the projection is lowered.

  Therefore, there has been a technology for projecting a wide range without losing definition by linking multiple projectors. For example, in Patent Document 1, when projecting a larger image by combining a plurality of projectors, each projector recognizes the position of its own projected image, and executes the processing of each projector according to the position. Cooperation is being executed. At this time, a calibration image projected by each projector is captured, and the position of each projection image is recognized.

JP 2008-187362 A JP-A-9-319556 JP 2006-202016

  Patent Document 1 discloses a method in which a plurality of projectors share and project different portions of one image. According to the projection method, the relative positions of the plurality of projectors are fixed, and the projection areas of the projectors are determined so as not to overlap. Therefore, when the projector is moved, a process of projecting the calibration image again and re-recognizing the positional relationship is necessary.

  In Patent Document 1, it is not possible to share a projection in accordance with various situations by coordinating a plurality of projectors according to the status of the projected content.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an information processing apparatus that controls a plurality of information processing apparatuses that can share projections in various situations and can perform projections suitable for users. And Moreover, it aims at providing the control apparatus, system, method, and program.

  In order to solve this problem, the information processing apparatus of the present invention has the following configuration. That is, the information processing apparatus includes a first projection unit that projects onto the first projection range, and includes other information including a second projection unit that projects onto the second projection range having an area overlapping the first projection range. The information processing device capable of communicating with the processing device projects the projection onto the overlapping region of the second projection unit on the other information processing device when the condition for projection by the first projection unit on the overlapping region is satisfied. Requesting means for requesting to stop the control, and control means for causing the first projecting means to project onto the overlapping area.

  ADVANTAGE OF THE INVENTION According to this invention, a projection can be shared according to various situations, and a projection suitable for a user can be performed.

The figure which shows an example of a structure of the information processing apparatus in this embodiment The figure which shows an example of the external appearance of one form of the information processing apparatus of FIG. 1, and its use The figure which shows an example of the condition which implements this invention suitably using two information processing apparatuses of FIG. The figure explaining the operation mode transition of the information processing apparatus of FIG. A flowchart for explaining the operation of the normal projection mode 402 A flowchart for explaining the operation of the alternative standby mode 403 A flowchart for explaining the operation of the alternative projection mode 404 The figure which shows the example of the image which imaged the present projection by a wide range information processing apparatus FIG. 6 is a flowchart for explaining an example of the determination processing content in step S605. Diagram showing an example of an electronic document describing projection data The figure which shows arrangement | positioning in 2nd Embodiment of information processing apparatus 200 and 300 The figure which shows the example of the image which imaged the present projection which includes the abnormality due to the shadow and the reflected light The figure which shows the example of the object projection which accompanies the code picture The figure of the example of composition of the information processor in other embodiments, and its control device

<First Embodiment>
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments for carrying out the invention will be described with reference to the drawings.

  The information processing apparatus of this embodiment is configured integrally with a projection apparatus and an imaging apparatus. A configuration example of the information processing apparatus according to the present embodiment will be described with reference to the block diagram of FIG.

  The projection unit 101 projects a digital image onto a projection surface such as a desk or a screen. The imaging unit 102 is a digital camera or a video camera that captures an image so as to include at least the projection range of the projection unit 101 and converts the image into a digital image. The UI unit 103 instructs a projection content and a projection method on the information processing apparatus in FIG. The UI unit 103 is, for example, a button provided in the information processing apparatus. The UI unit 103 may also have a mechanism for recognizing a user's gesture as will be described later. The control unit 104 provides image data to the projection unit 101 based on a user instruction obtained from the UI unit 103 or performs processing on the image data obtained from the imaging unit 102. Control by the control unit 104 is realized by a CPU or GPU mounted on the information processing apparatus executing a control program. The storage unit 105 is a memory, an HDD, or the like that stores a control program for the control unit 104, data for operation, projection content data, and the like. The communication unit 106 communicates with the information processing apparatus in FIG. 1 and other information processing apparatuses, a file server (not shown), an application server, and the like.

  FIG. 2 is a diagram illustrating an appearance of one form of the information processing apparatus in FIG. 1 and an example of its use. An information processing apparatus 200 in FIG. 2 corresponding to the information processing apparatus in FIG. 1 includes a projector 201 corresponding to the projection unit 101 and a camera 202 corresponding to the imaging unit 102. The information processing apparatus 200 is arranged to project an image on a projection surface 210 such as a desk. As a part of the imaging unit 102, the camera 202 provides the control unit 104 with a state within the projection range 211 of the projector 201, for example, a projection state on the projection range 211 and a captured image such as paper placed in the projection range 211. . The imaging unit 102 may include a mechanism that corrects a distortion that occurs when the camera 202 does not face the projection plane and corrects an image as if it was captured from directly above. The imaging cycle of the camera 202 is set to such an extent that fluctuations in the projection position and the gestures can be confirmed. The imaging unit 102 may further include a video camera or the like for recognizing a user instruction gesture for the information processing apparatus 200.

  In the example of FIG. 2, it is assumed that the imaging unit 102, UI unit 103, control unit 104, storage unit 105, and communication unit 106 are all integrated in the information processing apparatus 200. However, this is merely an example, and the above-described portion may be separated from the information processing apparatus 200. For example, the information processing apparatus 200 may be connected to a personal computer (not shown), and 103 to 106 may exist in the personal computer. Alternatively, only a portion of the storage unit 105 that stores projection content data is in a server on an intranet or the Internet, and the information processing apparatus 200 acquires the data by wired or wireless communication via the communication unit 106. Good. Similarly, some or all of the programs of the control unit 104 may operate on the server.

  An example of data specifying the object projected by the information processing apparatus 200 is shown in FIG. In the first embodiment, the projection data 1000 is composed of one or a plurality of objects. An object refers to an electronic document that is represented by a page, image data, or the like that the information processing apparatus 200 projects as a unit. If projection is possible as one unit, a group in which a plurality of image data are arranged or overlapped may be handled as one object. For example, it may be an electronic document of a plurality of pages, and an object that projects an arbitrary page according to a user's page turning instruction.

  In the example of FIG. 10, two objects 1001 and 1002 are described in the projection data 1000. An object 1001 is an electronic document file composed of PDF format data 1011, and an object 1002 is an image file composed of JPEG format data 1021. The entities of these data 1011 and 1021 may be stored in an HDD in the same apparatus as the storage unit 105 of the information processing apparatus 200 as described above, or may be stored in an external server. The feature amount descriptions 1012, 1022 are used to search for each object by the image feature amount. The electronic document describing the projection data 1000 including these objects 1001 and 1002 is stored in, for example, the storage unit 105 in the information processing apparatus 200 as a role of an index related to the object that the information processing apparatus 200 can project. The Of course, it may be stored in a server on the Internet.

  Returning to FIG. 2, an example of the projection object 212 projected by the information processing apparatus 200 onto the projection plane 210 is shown. For example, for the projection object 212, the control unit 104 converts one page of the PDF data 1011 indicated by the object 1001 into an image, and the projection unit 101 projects the image. The projection position of the projection object 212 may be fixed or a position designated by the user. This position designation method may be performed by any known designation method. For example, when the information processing apparatus 200 has a position designation button as the UI unit 103, the user may move the projection object to a desired position while confirming an actual projection state. Alternatively, a position input device (not shown) such as a mouse is attached to the information processing device 200 so that the user can move the projection object as if the display of a computer having a GUI is projected on the projection plane 210. Also good. Further, the information processing apparatus 200 may recognize a movement of a hand or a finger put out on the projection plane 210 by the user as a gesture and interpret it as a projection position designation instruction of the projection object 212. A technique for recognizing such a position designation gesture is disclosed in Patent Document 2.

  The information processing apparatus 200 can use a captured image obtained from the imaging unit 102 for this gesture recognition. Furthermore, in order to perform this gesture recognition more accurately, the imaging unit 102 may include a plurality of cameras capable of three-dimensional recognition, an infrared sensor, an ultrasonic sensor, and the like for distance measurement.

  Another example of the projection object is shown by a dotted line 213 in FIG. The projection object 213 is a projection onto a piece of paper 214 placed on the projection plane 210. As described above, when the user places the paper piece 214 at an arbitrary position on the projection surface 210, the information processing apparatus 200 may perform the projection by interpreting the paper piece position as the projection position. Here, the entire piece of paper may be used as the projection range of one projection object, or a part thereof may be used as the projection range. For example, a sentence may be printed in advance on a part of the paper piece 214, and the content of the image data 1021 in FIG. 10 may be projected onto the remaining white paper part. Further, when the user moves the piece of paper 214, the projection position of the projection object 213 may be moved in accordance with the movement of the paper. For example, Patent Document 3 discloses a technique for analyzing a captured image on a table on which a piece of paper is placed, and projecting the image to an appropriate position on the piece of paper according to the marker position and orientation of the piece of paper on which the visual marker is printed. ing. The position of the paper piece may be detected by extracting the four sides of the paper piece by a known edge detection technique without using a visual marker or the like.

  FIG. 3 is a diagram showing a configuration example of a situation in which the present invention is preferably implemented using the two information processing apparatuses in FIG. The information processing devices 200 and 300 are arranged on the projection plane 210, and the projection ranges 211 and 311 share a part of the projection range.

  Each of the information processing apparatus 200 and the information processing apparatus 300 includes the communication unit 106 illustrated in FIG. Various instructions and data are transmitted or received through the communication unit 106 to configure one information processing system.

  In the configuration example of FIG. 3, the information processing apparatus 300 has a projection range 311 that covers most of the projection plane 210, and the information processing apparatus 200 has a projection range 211 that covers a part of the projection range 311. Since the information processing apparatus 300 is installed so that it can be projected over a wide range, it will be referred to as a “wide range information processing apparatus 300” in the following description. In addition, since the information processing apparatus 200 is installed so that only a narrower range can be projected, it will be referred to as a “narrow range information processing apparatus 200” in the following description.

  In the present configuration example, the projection range 211 of the narrow range information processing apparatus 200 has an intention to improve the image quality of the projection including resolution and contrast by narrowing the projection range using the optical zoom function of the projection unit 101. On the other hand, the wide-area information processing device 300 is intended to enable projection of the entire projection surface. That is, the projection range 211 of the narrow-range information processing device 200 is narrower than the projection range 311 of the wide-range information processing device 300, but high-definition projection is possible.

  In the following description, it is assumed that the narrow-range information processing device 200 and the wide-range information processing device 300 are the information processing devices in FIG. 1 having the same configuration and performance. This is merely an example, and the wide-range information processing device 300 may have a configuration and performance different from those of the narrow-range information processing device 200 as long as the functions described below can be provided.

  FIG. 4 is a diagram for explaining the operation mode transition of the information processing apparatus of FIG. The information processing apparatus in FIG. 1 starts from an operation selection mode 401. In the operation selection mode 401, the user selects either normal projection or alternative projection as the operation of the information processing apparatus. When the normal projection is selected, the mode is changed to the normal projection mode 402 and the operation is continued until the end by the user instruction. When the alternative projection is selected, the process shifts to the alternative standby mode 403, and the operation is continued until the user finishes the instruction while changing between the alternative standby mode 403 and the alternative projection mode 404 according to the situation.

  In the configuration example of FIG. 3, when the user selects normal projection, the information processing apparatus transitions to the normal projection mode 402 and starts projection by the wide-area information processing apparatus 300. That is, the projection by the wide range information processing apparatus 300 is assumed to be a normal projection. Then, as shown in FIG. 4 described above, the projection in the normal projection mode 402 of the wide-area information processing apparatus 300 continues the operation until the end by the user instruction.

  Hereinafter, an operation example of the normal projection mode 402 will be described with reference to the flowchart of FIG. The flowchart described below is realized by the CPU of the control unit 104 executing a control program.

  In step S501, the wide range information processing apparatus 300 acquires the projection target object selection result by the user. Specifically, the data of the object selected by the user as the projection target is acquired from the objects stored in the storage unit 105 of the wide range information processing apparatus 300. The selected object is hereinafter referred to as object A. This selection is performed by, for example, displaying a list on the projection plane 210 with the file name or image content of each object as an index from the content of the data 1010 specifying the projection object of FIG. To do. As an instruction unit, for example, if the UI unit 103 of the wide-range information processing apparatus 300 includes a button or a mouse, it may be used. Alternatively, the projection unit 101 may further project a GUI for object specification, and recognize a gesture such as a touch on them as a user's selection. Alternatively, when a personal computer is connected to the wide range information processing apparatus 300, the selection may be made using the UI of the personal computer.

  In step S <b> 502, the wide range information processing apparatus 300 acquires a position designated by the user as the projection position of the object A. As in step S501, the user designates a projection position using a button / mouse provided as the UI unit 103 of the wide-area information processing apparatus 300, a gesture, or the like. As another example of the projection position designation, as described above, the user may place a piece of paper on the projection plane 210, and the wide range information processing apparatus 300 may interpret the inside of the piece of paper as the projection position of the object A.

  In step S503, the wide range information processing apparatus 300 projects the object A at the position specified in step S502. Specifically, object data is developed into an image, and the projection unit 101 projects a projection image in which the image is arranged at a specified position on the projection plane 210. Here, the data of the object may be expanded into an image by the control unit 104 in the wide-area information processing apparatus 300, or the object data is specified in a program on the Internet and expanded by the program. You may make it receive the image. Note that the wide-area information processing apparatus 300 continues the same projection after this step unless there is any instruction from the user.

  In step S504, the wide-area information processing device 300 detects whether or not an instruction to stop the projection of the object A is issued. If no instruction has been issued, the process proceeds to step S505. If an instruction has been issued, the process proceeds to step S507. Here, the stop instruction may be an instruction from the narrow-range information processing apparatus 200 as well as an instruction given by the user using the UI unit 103. The latter case will be described later together with the contents after step S507. Here, it is assumed that no stop instruction has been issued, and the process proceeds to step S505.

  In step S505, the wide-area information processing device 300 detects whether or not the user has given an instruction to move the projection position of the object A. If an instruction is detected, the process proceeds to step S506. When not detected, it returns to step S503 and repeats the process after step S504.

  In step S506, the wide-area information processing device 300 acquires the movement destination position of the object A specified by the user. Thereafter, the process returns to step S503, the object A is projected to a new position, and the subsequent processing is repeated.

  The acquisition of instructions in steps S505 and S506 may be performed as acquisition of instructions to the buttons / mouse of the wide-range information processing apparatus 300 or recognition of instructions by gestures as in step S502. Alternatively, when the object A is projected on the paper surface, the position of the paper surface moved by the user may be detected again and acquired.

  The user can project a desired object to a desired position on the projection plane 210 by using the wide range information processing apparatus 300 by the operations in steps S501 to S506 of FIG. Further, the user can instruct and move the projection within the projection range 311. The operations in steps S507 to S508 in FIG. 5 will be described later.

  Returning to the example of FIG. 3, assume that the user selects the alternative projection operation for the narrow-range information processing device 200 while the wide-range information processing device 300 is performing the normal projection operation. As a result, according to FIG. 4 described above, the operation mode of the narrow-range information processing apparatus 200 transitions to the alternative standby mode 403.

  Hereinafter, an operation example of the alternative standby mode 403 will be described with reference to the flowchart of FIG.

  In step S <b> 601, the narrow range information processing apparatus 200 captures its own projection range 211 by the imaging unit 102. In the example of FIG. 3, the projection range 211 is a part of the projection range 311 of the wide range information processing apparatus 300.

  In step S602, the narrow area information processing device 200 detects whether or not the projection of the object by the wide area information processing device (hereinafter referred to as the current projection) exists in the captured image obtained in step S601. If there is no current projection, the process returns to step S601 and the subsequent processing is repeated. If it exists, the process proceeds to step S603. Whether or not the current projection exists may be determined by extracting the edge of the luminance difference caused by the projection on the assumption that the projection plane 210 is plain in the non-projection state, for example.

  In the first embodiment, in step S503 of FIG. 5, the current projection of the object A performed by the wide-range information processing device 300 based on the user instruction is performed by the wide-range information processing device 300 in accordance with the projection range of the narrow-range information processing device 200. If within 211, the process proceeds to step S603. Alternatively, in step S506 of FIG. 5, even when the wide range information processing apparatus 300 moves the current projection and enters the projection range 211 of the narrow range information processing apparatus 200 based on the user's movement instruction, the process returns to step S603. Will go on.

  In step S603, the narrow area information processing device 200 identifies the data of the current projection object detected in step S602. In the first embodiment, specifically, the wide-area information processing apparatus 300 specifies electronic data used as a projection source.

  For this specification, it is assumed that the narrow-range information processing device 200 and the wide-range information processing device 300 share in advance information on objects that can be projected. For example, when the wide-range information processing apparatus 300 holds the projection data 1000 in FIG. 10 as an index of an object that can be projected, the narrow-range information processing apparatus 200 may acquire the index through inter-device communication. . Alternatively, projection data 1000 may be arranged on the Internet as a storage area common to the narrow-range information processing device 200 and the wide-range information processing device 300 and referred to as an index from both.

  Alternatively, a program that manages the projection data 1000 and an information processing device that projects the projection data 1000 is operating on the Internet, and the narrow-range information processing device 200 and the wide-range information processing device 300 communicate with the program. The projection data 1000 may be obtained respectively. Of course, the program may operate in the intranet or in the wide area information processing apparatus 300 or 200.

  In the first embodiment, the image feature amount is used to determine which object in the index of the projection data 1000 corresponds to the current projection. A feature amount obtained by a known image feature amount extraction technique from a captured image of the current projection is compared with each of the feature amounts 1012, 1022 in FIG. 10, and the current projection object is one of the objects 1001, 1002. Determine whether. If there is an object with a matching degree equal to or greater than the threshold, the data is identified as the current projection object data, and the process proceeds to step S603. When the degree of coincidence of the feature quantity is low with any object, it is determined as the failure of specification, and the process returns to step S601 and the following processing is repeated. The above determination is an example, and another determination may be used. For example, the data of each object may be developed into an image, and the above determination may be made from the degree of coincidence between each image and the captured image of the current projection.

  In step S604, the narrow area information processing device 200 checks whether or not the current projection is included in the projection range of the narrow area information processing device 200 using the data of the current projection object specified in step S603. If it is determined that it is included, the process returns to step S605. If it is determined that it is not included, the process returns to step S601.

  For example, the determination may be performed by expanding the data of the specified current projection object to obtain an original object image, and comparing the image content with the captured projection image. FIG. 8A shows an example of a captured image obtained by the narrow-range information processing apparatus 200, in which only a part of the current projection 801 is included in the projection range 211. Here, the imaging unit 102 images a range that is slightly larger than the projection range 211 of the narrow-range information processing apparatus 200. At the time of the comparison, a part of the current projection 801 cut out within the projection range 211 becomes a comparison target and does not coincide with the original object image, so that the current projection 801 is the projection range 211. It is determined that it is not included. On the other hand, the current projection 802 in FIG. 9B is an example of a case where it is determined that it is included in the projection range 211.

  In step S605, the narrow area information processing device 200 determines whether or not to project the current projection object identified in step S603 by itself (the narrow area information processing device 200). This determination is based on a determination criterion regarding whether or not the projection performed by the user (the narrow area information processing apparatus 200) is higher in resolution for the user than the current projection by the wide area information processing apparatus 300 with respect to the identified object. Done.

  An example of the content of determination processing in step S605 is shown in the flowchart of FIG.

  In step S901, the narrow area information processing apparatus 200 calculates the resolution of the current projection from the captured image obtained in step 601 of FIG. Here, the resolution on projection is a value indicating how many pixels a unit length such as 1 inch is expressed when the information processing apparatus actually projects a digital image on a projection plane. It can be said that the larger the value, the higher the number of pixels per projection area and the higher the definition, providing a projection suitable for the user.

  As an example of the resolution calculation method, one rectangle of projection pixels constituting the current projection may be extracted from the captured image and calculated based on the size. When it is known in advance that 1 inch corresponds to m pixels on the captured image, when the projected pixel forms a square of n × n pixels on the captured image, the resolution is m / n dpi (dot per). inch).

  In step S902, the narrow area information processing device 200 calculates the resolution on projection when the object identified in step S603 of FIG. 6 is projected at the same position as the current projection. For this calculation, if the projection resolution is determined in advance as the apparatus specification, the value may be used. When the projection range is variable by the optical zoom function of the projection unit 101, the resolution value in the current zoom setting may be obtained by storing the relationship between the zoom setting and the resolution on projection in advance. Alternatively, the narrow-range information processing device 200 performs a projection so that the projection pixel can be observed at a location different from the current projection, and dynamically calculates the resolution of the projection from the captured image as described above. You may make it do.

  In step S903, the narrow-range information processing apparatus 200 compares the current projection resolution calculated in step S901 with the resolution calculated by itself in step S902. If the resolution when projecting by itself is high, it is determined in step S605 to project by yourself (the narrow-range information processing device 200). Otherwise, it is determined in step S605 not to project by yourself.

  In the determination processing example of FIG. 9A, it is determined that it is preferable for the user to provide a higher resolution projection using the projection resolution as an index. In FIG. 3, the narrow-range information processing device 200 performs projection in a narrower range than the wide-range information processing device 300 by an optical zoom function. In currently common liquid crystal projectors, the resolution of projection is determined by the number of pixels in the liquid crystal portion, and the resolution decreases by a large amount when projected over a wide range. Therefore, if the narrow-range information processing device 200 and the wide-range information processing device 300 are liquid crystal projectors having the same resolution, the narrow-range information processing device 200 has a projection condition that allows projection with higher resolution in the projection range 211. is there. On the other hand, when there is a difference in resolution between the two apparatuses, the superiority or inferiority of the actual projection resolution differs depending on the case. Even in the latter case, this determination processing can determine whether or not the narrow range information processing apparatus 200 can perform projection that is actually suitable for the user, using the actual projection result.

  Note that the resolution calculation described above is an example, and other methods may be used. For example, the reproducibility of the edge on the projection may be regarded as the resolution, and the resolution value may be obtained by calculating the gradient amount of the edge portion in the object on the captured image. Here, since the narrow-range information processing apparatus 200 specifies the data of the object of the current projection, a portion in the same data where an edge suitable for comparison appears in the projection is selected and used for calculating the resolution. You may do it. For example, by selecting a portion where straight lines are arranged at equal intervals, the edge gradient amount can be stably extracted. Alternatively, the narrow-range information processing apparatus 200 actually projects the same object by itself in an empty space next to the current projection, and performs projection of the wide-range information processing apparatus and its own projection on the captured image. You may make it compare. For example, frequency conversion may be performed on an image by a known technique such as FFT, and the higher resolution may be determined as higher resolution.

  Further, other than the resolution may be used as an index as a determination condition. For example, one index such as projection contrast or maximum brightness, color reproducibility, or a combination of a plurality of indices including resolution may be used. It can be determined that the projection conditions having the same performance can provide a higher value for the projection condition with the projection range narrowed, that is, a projection preferable for the user. Even when the performance is different, it is possible to determine which is preferable by comparing the index value obtained from the captured image of the current projection with the index value based on the projection condition of the current projection.

  Furthermore, the above criteria may be changed according to the data content of the object. For example, a condition such as a resolution preferable for projection of each object data may be associated as an image quality request, and may be added to the determination condition in step S903 in FIG.

  As an example, an attribute 1031 of preferred_dpi = “100” is described in the object 1001 of FIG. 10 as a preferable resolution in the projection of the object. In the determination of whether or not the narrow area information processing apparatus 200 projects the current projection of this object by itself as described in the flowchart of FIG. 9, it is determined that the resolution calculated in step S902 exceeds the preferable value of 100. In step S903, it may be added to the condition that branches to Yes. In this way, the narrow area information processing apparatus 200 performs alternative projection only when the projection resolution when projected by itself is higher than the required value.

  In step S901, the resolution of the current projection projected by the wide-range information processing device 300 is calculated from the captured image, but a method similar to the resolution calculation method of the narrow-range information processing device 200 in step S902 is used. It is possible to calculate the resolution of the wide-range information processing apparatus 300 without using the captured image. In this embodiment, since the projection performance of the wide-range information processing device 300 and the narrow-range information processing device 200 is equivalent, it can be estimated that the resolution of the narrow-range information processing device 200 is high from the size of the projection range. .

  Returning to the description of step S605 in FIG. 6, if it is determined by the above-described determination that projection is performed by itself, the process proceeds to step S606. If not determined, the process returns to step S601.

  In step S606, the narrow area information processing device 200 projects the object specified in step S603 at substantially the same position as the current projection. At this time, the current projection, the position, and the size may be modified so as to be substantially the same and projected.

  In step S607, the narrow area information processing apparatus 200 requests the wide area information processing apparatus 300 to stop the current projection. Specifically, an object specification and stop instruction may be exchanged directly between the two apparatuses using the communication unit 106. Alternatively, as described above, when there is a program that manages the projection data 1000 and the information processing apparatus that projects the projection data 1000, instructions may be exchanged via the program. Specifically, the narrow area information processing apparatus 200 requests the program to stop the projection of the wide area information processing apparatus 300 that is currently projecting the identified object. Based on this request, the program instructs the wide-area information processing apparatus 300 to stop projecting the object.

  As described above, the narrow-range information processing apparatus 200 in the example of FIG. 3 finds the current projection of the object A by the wide-range information processing apparatus 300 in the self-projection range 211 by the processing of the flowchart of FIG. When it is determined that the projection is performed, projection that substitutes for the current projection is started. Then, the narrow range information processing apparatus 200 transitions to the alternative projection mode 404.

  The operation of the narrow area information processing apparatus 200 in the alternative projection mode 404 will be described using the flowchart of FIG.

  In step S701, the narrow area information processing apparatus 200 projects the object A at the current position. Here, the object A is an object that has been projected in place of the current projection by the wide-area information processing apparatus 300 in step S606 of FIG. The current position is a position when projection is started in step S606 of FIG. 6 in the first process of step S701. There may be a position moved by the user in the repetition other than the first.

  In step S702, the narrow area information processing device 200 detects whether or not the user has given an instruction to move the projection position of the object A. If an instruction is detected, the process proceeds to step S703. If not detected, the process proceeds to step S704.

  In step S703, the narrow-range information processing apparatus 200 acquires the movement destination position of the object A specified by the user.

  The instruction acquisition in steps S702 and S703 is the same as the instruction acquisition in steps S505 and S506 of FIG.

  In step S704, the narrow area information processing apparatus 200 checks whether or not the object A has moved out of the projection range 211 in accordance with the movement destination instruction in step S703. Whether or not it has moved outside the projection range 211 can be determined, for example, by determining whether any of the coordinates of the four corners of the projection is outside the projection range 211. Alternatively, the self-projection is imaged, and in contrast to step S604 of FIG. 6 described above, when the entire object A by self-projection is not included in the projection range 211, it may be determined that the object has moved outside the projection range 211.

  If it has moved outside the projection range 211, the process proceeds to step S705. Otherwise, the process returns to step S701 and the following processing is repeated.

  In step S705, the narrow area information processing apparatus 200 stops the projection of the object A.

  In step S706, the narrow area information processing apparatus 200 requests the wide area information processing apparatus 300 to resume projection of the object A. Similar to step S607 in FIG. 6, an object specification and restart instruction may be exchanged between the two apparatuses using the communication unit 106. Or you may perform via the program which manages the above-mentioned projection data 1000 and the information processing apparatus which projects it. At this time, the wide range information processing apparatus 300 may be instructed together with the current projection position.

  As described above, the narrow area information processing apparatus 200 in the example of FIG. 3 performs alternative projection of the object A within the own projection area 211 by the processing of the flowchart of FIG. When the user moves the projection out of the projection range 211, the information processing apparatus ends the alternative projection, and the wide-area information processing apparatus 300 resumes the projection onto the object A that has been performed before the alternative. Then, the narrow area information processing device 200 makes a transition to the alternative standby mode 403 again.

  As described above, according to the first embodiment of the present invention, the information processing apparatus installed so as to project at least a part of the projection range of the wide-range information processing apparatus projects the wide-area information processing apparatus. The object is imaged, and it is detected that the current projection is within the projection range of the narrow range information processing apparatus.

  Then, based on this captured image, if it is determined that it is possible to provide a projection more suitable for the user by projecting the object with the narrow-range information processing device than the current projection performed by the wide-range information processing device, the projection of the object is performed. Start.

  While the information processing apparatus projects the object, the wide-area information processing apparatus stops the projection. As a result, as a cooperative operation of a plurality of information processing apparatuses, an operation is performed in which an information processing apparatus capable of providing projection suitable for the user is selected and projected in units of projection objects.

  At this time, even if the user moves the projection position of the object, the cooperation operation is provided corresponding to the moved position. In addition, since the cooperation is performed by recognizing each other's projection contents and projection positions between the information processing apparatuses, preparation work such as alignment between the information processing apparatuses is not necessary, and even if the information processing apparatus is moved during operation There is an effect that the cooperative operation can be continued.

  These effects become remarkable in the arrangement example as shown in FIG. A narrow-range information processing apparatus 200 installed with a projection range narrower than the wide-area information processing apparatus 300 installed for full-screen projection is a wide-range information processing apparatus with the same object in the projection range 211 with image quality such as resolution and contrast. It becomes a state that can be projected more suitably than 300.

  For example, it is assumed that the information processing apparatus 200 is installed so that the current projection is included in the projection range while the user is projecting an object using the wide range information processing apparatus 300. Then, since the narrow-range information processing apparatus 200 starts projection so as to replace the current projection, the user can obtain a more suitable projection.

  Alternatively, the user can obtain a suitable alternative projection by the narrow-range information processing apparatus 200 by moving the object initially projected outside the projection range 211 into the projection range 211. This embodiment is also characterized in that there is no need for preparations such as alignment for linking the two information processing apparatuses in this way. Furthermore, since the narrow-range information processing apparatus 200 operates only when it is determined that it is appropriate to project it by itself, there is an effect of reducing the power consumption of projection.

  Note that FIG. 3 is an example, and other arrangements and other projection range settings may be used. For example, there are a plurality of information processing apparatuses that use three or more information processing apparatuses, one of which is a normal projection operation, and a part or all of the projection range is divided into alternative projection operations. You may install so that it may cover. Alternatively, two information processing apparatuses having different projection performances may be installed so as to have substantially the same projection range. In that case, an alternative projection operation is specified for one unit that can perform a more favorable projection with high performance, and a normal projection operation is specified for the other unit. In any example, the information processing apparatus to which the alternative operation is designated automatically determines whether or not to replace the current projection of the wide-area information processing apparatus in its own projection range and performs the alternative projection. Here, the determination as to whether or not to substitute is made by comparing the captured current projection with the projection when projected by itself, so that the alternative projection can be performed only when an alternative projection suitable for the user is possible. .

<Second Embodiment>
FIG. 11A shows the respective projections of the narrow-range information processing apparatus 200 and the wide-range information processing apparatus 300, which are the arrangements of the narrow-range information processing apparatus 200 and the wide-range information processing apparatus 300 in FIG. The ranges 211 and 311 are substantially the same, or the projection range 211 is narrower than the projection range 311 as in the first embodiment. The wide-area information processing apparatus 300 performs the current projection 1110 by the normal projection operation. Here, when the user 1101 places a three-dimensional obstacle 1102 such as a hand or an arm on the right side of the current projection 1110, a shadow may occur in the current projection 1110. FIG. 12A shows this state. A shadow 1210 has occurred on the current projection 1110.

  For the operation example of step S605 in FIG. 6 described above, the narrow-range information processing apparatus 200 to which the operation of the alternative projection is designated corresponds to such a situation and determines to project the current projection by itself. This will be described with reference to the flowchart (b).

  In step S911, the narrow area information processing device 200 expands the data of the current projection object specified in step S603, and generates an original object image. If the data already specified in the processing of step S603 or S604 has been developed into an image, that image may be used.

  In step S912, the captured image of the current projection portion is compared with the original object image generated in step S911, and the degree of coincidence is calculated. The degree of coincidence may be obtained, for example, by enlarging or reducing one of the two images so that the sizes and orientations of the two images coincide with each other and integrating the square sums of the corresponding pixel values of both. Other known coincidence calculation methods may be used.

  In step S913, the narrow-range information processing apparatus 200 checks whether or not the degree of coincidence calculated in step S912 is smaller than a predetermined threshold value N. If it is smaller, it is determined in step S605 to project by itself. Otherwise, the same judgment is made not to project by itself.

  In the case of the example in FIG. 12A, the degree of coincidence becomes a small value due to the influence of the shadow 1210 on the current projection 1110. The threshold value used as a criterion for determination may be determined in advance, or may be determined based on the degree of coincidence between the current projection 1110 when the shadow 1210 is not generated and the original object image. As a result, the narrow area information processing apparatus 200 determines to project the object by itself. Then, since the alternative projection is started as described in the first embodiment, the user 1101 can obtain a projection without a shadow thereafter.

  In the process of step S913 described above, the degree of coincidence is smaller than the threshold value N, and it is estimated from the relationship between the shape and direction of the shadow and the obstacle that the narrow area information processing device 200 is a shadow that can be resolved by its own projection. However, it may be added to the determination condition. For example, it may be determined that the captured image is projected by itself only when it is determined that a shadow is generated in the direction opposite to the projection direction of the narrow-range information processing apparatus 200.

  FIG. 11B is another arrangement example of the narrow-range information processing device 200 and the wide-range information processing device 300 in FIG. 3 in the second embodiment. It is assumed that the wide-range information processing device 300 performs normal projection operations and the narrow-range information processing device 200 performs alternative projection operations.

  In the second embodiment, the user 1103 and the user 1104 observe the projection at a position where the projection plane 210 is narrowed. Since the user 1104 faces the wide-area information processing apparatus 300 that performs projection, the user 1104 may feel the reflected light of the projection brightly. In particular, when a glossy paper is placed on the projection surface 210 and the projection is performed on the glossy paper, there is a possibility that a part or the whole of the projection may appear to be blown out to the user 1104.

  At this time, from the imaging unit 102 of the narrow-range information processing apparatus 200 in which the line-of-sight direction is close to the user 1104, an image of the current projection that is overexposed is obtained like the current projection 1206 in FIG. Therefore, in the process of the flowchart of FIG. 9, since the degree of coincidence between the current projection and the original object image decreases, the narrow-range information processing apparatus 200 determines that it projects by itself, and starts alternative projection. Since the user 1104 sees the projection from the narrow-range information processing apparatus 200 that is in the same direction as the line of sight, the projection without the influence of the reflected light can be observed. In other words, it is possible to operate by determining whether or not a suitable projection can be performed from the viewpoint close to the observer.

  Description of other hardware parts and processing thereof is omitted because it is the same as in the first embodiment. Moreover, you may implement the process of 2nd Embodiment combining the process of 1st Embodiment.

  As described above, according to the second embodiment of the present invention, the narrow-range information processing apparatus 200 that is designated to perform the alternative projection operation has the current projection of the object by the wide-range information processing apparatus 300 within its own projection range. It is detected that it is included in. Here, when a shadow due to an obstacle, reflection due to gloss, or the like occurs, the narrow-range information processing apparatus 200 determines that the current projection is abnormal because of the low degree of coincidence between the captured image of the current projection and the original object image. Is detected. Then, the narrow area information processing device 200 starts alternative projection.

  The alternative projection allows the user to continue to obtain a projection with no shadows or gloss. As in the first embodiment, this cooperative operation is performed by recognizing an image obtained by capturing the projection contents and the projection position of the wide-area information processing apparatus, so that there is no need for preparations such as alignment. For example, even if the installation location of the narrow-range information processing apparatus 200 is changed at any time in consideration of the position of an obstacle or the influence of reflected light, the projection can be replaced immediately in cooperation. Furthermore, since the narrow-range information processing apparatus 200 operates only when it is determined that it is appropriate to project it by itself, there is an effect of reducing the power consumption of projection. If the user desires a wider range of projection in the alternative projection, the user may perform adjustment to enlarge the projection range of the narrow-range information processing device 200 in accordance with the projection range of the wide-range information processing device 300.

<Third Embodiment>
In the description of the first and second embodiments of the present invention, a direct or intermediary program between the two devices is passed to a part where projection object instructions and data are exchanged between the narrow-range information processing device 200 and the wide-range information processing device 300. An example using inter-device communication is shown.

  Specifically, in the operation of the alternative standby mode 403 of the information processing apparatus 200, the part for specifying the current projection object data by the wide-area information processing apparatus 300 (step S603) This is a part that requests the wide-range information processing device 300 to stop the projection of the current projection from the narrow-range information processing device 200 (step S607). The operation of the alternative projection mode 404 of the narrow area information processing apparatus 200 is a part that requests the wide area information processing apparatus 300 to resume projection (step S706).

  Description of other hardware parts and processing thereof is omitted because it is the same as in the first embodiment.

  In the third embodiment of the present invention, the instructions and data as described above are encoded and embedded into a code image, and when the narrow area information processing apparatus 200 and the wide area information processing apparatus 300 project an object, the code image is converted into the code image. In addition, information is transmitted to a wide range information processing apparatus. Here, as the code image, for example, a known technique such as CODE39 for a one-dimensional barcode and PDF417 for a two-dimensional barcode is used. The flow of operations of the narrow-range information processing device 200 and the wide-range information processing device 300 are equivalent to those of the first embodiment of the present invention and correspond to FIGS. 4 to 7, and only the differences will be described below.

  First, FIG. 13A shows an example in which the wide-area information processing apparatus 300 in the normal projection mode 402 projects the object 1001 in FIG. Reference numeral 1301 in FIG. 13A denotes a current projection of the object 1001 by the wide-area information processing apparatus 300, that is, an image obtained by imaging the data 1011 of the electronic document. Reference numeral 1302 denotes a code image added to the projection 1301. A character string “http: //storage/document1.pdf” is encoded and embedded in the code image 1302 as information for specifying at least object data. Of course, the entire description character string of the object 1001 may be included.

  On the other hand, the narrow-range information processing apparatus 200 in the operation of the alternative standby mode 403 detects the current projection 1301 within the projection range 211 from the captured image, and then specifies the current projection object data in step S603 of FIG. In the process, the information of the code image is used. In other words, a code image in the vicinity of the projection object is extracted from the captured image and decoded to extract information for specifying the object data. A known bar code extraction technique may be used to extract the code image. In the example of FIG. 13A, an address character string “http: //storage/document1.pdf” in which object data is stored is obtained. By accessing this address, the narrow area information processing apparatus 200 can obtain the data of the current projection object. As a result, it is not necessary to use a means such as an image search for specifying object data, and there is no specific error. In particular, as described in the second embodiment of the present invention, the present projection is effective when there is an abnormality such as a shadow or glossiness and the accuracy of image search cannot be obtained as expected. In order to increase resistance to abnormalities, code images may be added to two or more places such as four sides of the projection.

  Next, a case where the narrow area information processing apparatus 200 in the alternative standby mode 403 requests the wide area information processing apparatus to stop the projection of the current projection will be described with reference to FIG. In FIG. 13B, the current projection 1301 and the accompanying code image 1302 performed by the wide range information processing apparatus 300 are the same as those in FIG. Here, the narrow area information processing apparatus 200 in step S607 of FIG. 6 has a stop instruction mark (pattern) 1303 for instructing the wide area information processing apparatus 300 to stop the projection of the current projection 1301 next to the code image 1302. Projecting. The shape of the stop instruction mark 1303 is an example, and may take other shapes or a code image format. Further, the position may be a different position as long as the relation with the current projection as the stop instruction target is known.

  On the other hand, the wide range information processing apparatus 300 in the normal projection mode 402 detects a stop instruction by the stop instruction mark 1303 in step S504 in FIG. Specifically, the wide-range information processing device 300 detects by extracting a stop instruction mark 1303 in the vicinity of the current projection 1301 from the captured image of the projection range 311 obtained by the imaging unit 102. If detected, the wide area information processing apparatus 300 proceeds to step S507 and stops the projection of the current projection 1301. At this time, the wide-range information processing device 300 may project another indication mark (pattern) in the vicinity of the current projection 1301 in order to notify the narrow-range information processing device 200 that the projection stop has been accepted.

  Finally, a case where the narrow area information processing apparatus 200 in the alternative projection mode 404 requests the wide area information processing apparatus to resume projection of the current projection will be described with reference to FIG. In FIG. 13C, a projection 1304 performed by the narrow-range information processing apparatus 200 instead of the wide-range information processing apparatus 300 is shown. Accompanying the projection 1304, a code image 1305 specifying data of the object may be projected. Here, the narrow area information processing apparatus 200 in step S706 in FIG. 7 projects a restart instruction mark 1306 (pattern) for instructing the wide area information processing apparatus 300 to resume projection of the object 1001 in FIG. Like the stop instruction mark 1303, the restart instruction mark 1306 may have a different shape or position.

  On the other hand, the wide range information processing apparatus 300 in the normal projection mode 402 detects a stop instruction by the restart instruction mark 1306 in step S508 of FIG. Specifically, the wide-range information processing device 300 detects by extracting a restart instruction mark 1306 from the captured image of the projection range 311 obtained by the imaging unit 102. If detected, the wide-area information processing apparatus 300 proceeds to step S503 and resumes the stopped projection. At this time, the wide-area information processing device 300 may specify the data of the object whose projection is to be resumed by extracting the code image 1305 in the vicinity of the resume instruction mark 1306 and decoding the coded content. Further, the restart instruction mark 1306 may be a code image including instruction information such as the projection position and orientation when the projection is restarted. By doing so, it is possible to make the difference which is caused by switching of the information processing apparatuses for the same projection object inconspicuous.

  As described above, according to the third embodiment of the present invention, the information processing apparatus installed so as to project at least a part of the projection range of the wide-area information processing apparatus projects the wide-area information processing apparatus. The object is imaged, and it is detected that the current projection is within the projection range of the narrow range information processing apparatus. At this time, the data of the object is specified from the code image projected along with the object. Then, when it is determined that it is possible to provide a projection more suitable for the user by projecting the object with the narrow-range information processing device than the current projection performed by the wide-range information processing device, projection of the object is started.

  Only while the information processing apparatus is projecting the object, a code image in which a stop or restart instruction is embedded is projected along with the object for the purpose of stopping the projection of the wide area information processing apparatus. As a result, as a cooperative operation of a plurality of information processing apparatuses, an operation is performed in which an information processing apparatus capable of providing projection suitable for the user is selected and projected in units of projection objects. At this time, even if the user moves the projection position of the object, the cooperation operation is provided corresponding to the moved position. In addition, since the cooperation is performed by recognizing each other's projection contents and projection positions between the information processing apparatuses, preparation work such as alignment between the information processing apparatuses is not necessary, and even if the information processing apparatus is moved during operation There is an effect that the cooperative operation can be continued.

<Other embodiments>
The plurality of information processing apparatuses according to the first embodiment have basically the same configuration. The program for performing the projection control described in the first to third embodiments can be stored and executed in any information processing apparatus. That is, all information processing apparatuses have an execution environment for the program. Therefore, projection control can be performed with any information processing apparatus that stores the program. When the program is stored in each of a plurality of information processing apparatuses, the information processing apparatus that executes the program can be set by the user.

  As another embodiment, there is a configuration in which a projection control apparatus having an execution environment for the program is physically separated from the information processing apparatus. That is, a common program execution environment can be provided outside the information processing apparatus.

  An example of the configuration of another embodiment will be described with reference to FIG. The information processing apparatuses 200 and 300 include projection units 201 and 301 and imaging units 202 and 302, and communication units 206 and 306 for exchanging instructions and data, respectively.

  The control device 400 includes a storage unit 405 for storing a program and projection data for controlling projection and imaging of the information processing devices 200 and 300, a CPU 401 for executing the program, and a communication unit for exchanging instructions and data. 406, a UI unit 403 for receiving user instructions.

  In the configuration described above, by separating the control device 400 and the information processing devices 200 and 300, the information processing devices 200 and 300 themselves can be made simpler.

  Furthermore, as another configuration example of the other embodiments, the projection unit 201 and the imaging unit 202 in the information processing apparatus 200 and / or the projection unit 301 and the imaging unit 302 in the information processing apparatus 300 are further separated, respectively. It can also be configured as a projection device and an imaging device. Each of the separated projection apparatus and imaging apparatus includes a communication unit that operates in cooperation with each other.

  Further, the program used in each embodiment of the present invention and a computer-readable recording medium storing the program are included in the embodiment of the present invention.

200 Information Processing Device that Performs Alternative Projection 210 Projection Surface 211 Projection Range of Information Processing Device 200 300 Information Processing Device that Performs Normal Projection 311 Projection Range of Information Processing Device 300

Claims (16)

An information processing apparatus including a first projection unit that projects an image onto a first projection range, the information processing apparatus including a second projection unit that projects an image onto a second projection range having an area overlapping the first projection range The information processing apparatus capable of communicating with the information processing apparatus of
Requesting means for requesting the other information processing apparatus to stop projecting the overlapping region of the second projecting unit when the condition for projecting onto the overlapping region by the first projecting unit is satisfied,
Control means for causing the first projecting means to project onto the overlapping area;
An information processing apparatus comprising: When the condition is not satisfied after the first projecting means projects,
The control means stops the projection by the first projection means,
The information processing apparatus according to claim 1, wherein the request unit requests the other information processing apparatus to resume projection by the second projection unit.   The information processing apparatus according to claim 1, further comprising an imaging unit that captures an image projected by the second projection unit in the overlapping region, and determining whether the condition is satisfied from the captured image.   By causing the first projection unit to project a pattern for instructing the resumption of projection by the second projection unit, the other information processing apparatus is requested to resume projection by the second projection unit. The information processing apparatus according to claim 2.   4. The information processing apparatus according to claim 1, wherein the condition is that an image quality of an image projected by the second projection unit is lower than an image quality of an image projected by the first projection unit. 5. .   2. The condition according to claim 1, wherein the degree of coincidence between the image projected by the second projection unit and the original image is lower than the degree of coincidence between the image projected by the first projection unit and the original image. 4. The information processing apparatus according to any one of items 1 to 3.   The information processing apparatus according to claim 5, wherein the image quality of the image is based on at least one of resolution, contrast, luminance, and color reproducibility of the image.   The information processing apparatus according to claim 5, wherein the image quality of the image is based on a combination of resolution, contrast, luminance, and color reproducibility of the image. An information processing apparatus comprising second projection means for projecting an image onto the second projection range, comprising: first projection means for projecting an image onto the first projection range having an area overlapping the second projection range The information processing apparatus capable of communicating with the information processing apparatus of
Control means for stopping projection of the overlapping region by the second projecting unit when a condition for projecting to the overlapping region by the first projecting unit is satisfied;
Request means for requesting the other information processing apparatus to perform projection by the first projection means for the overlapping area;
An information processing apparatus comprising: When the condition is not satisfied after the first projecting means projects,
The request unit requests the other information processing apparatus to stop projection by the first projection unit,
The information processing apparatus according to claim 9, wherein the control unit resumes projection by the second projection unit. A first information processing apparatus comprising a first projection means for projecting an image onto the first projection range; and a second projection means for projecting an image onto a second projection range having a region overlapping the first projection range. A control device capable of communicating with the two information processing devices,
When the condition for projecting onto the overlapping area by the first projecting unit is satisfied, the second information processing apparatus is requested to stop the projection on the overlapping area of the second projecting unit, and the first information Request means for requesting the processing device to project the overlapping area;
A control device comprising: In an information processing system comprising a plurality of information processing devices and a control device capable of communicating with the information processing devices,
The first information processing apparatus includes first projection means for projecting an image to the first projection range,
The second information processing apparatus includes a second projecting unit that projects an image onto a second projection range having an area overlapping the first projection range,
The control device causes the second information processing apparatus to stop projecting the overlapping region of the second projecting unit when the condition for projecting by the first projecting unit to the overlapping region is satisfied. An information processing system comprising: requesting means for requesting the first information processing apparatus to request projection to the overlapping area. An information processing method for a plurality of information processing devices,
The second projection unit displays an image in an area overlapping the first projection range of the first projection unit of the first information processing apparatus and the second projection range of the second projection unit of the second information processing apparatus. A projection step of projecting;
A requesting step of requesting the second information processing apparatus to stop projecting the overlapping region of the second projecting unit when a condition for projecting to the overlapping region by the first projecting unit is satisfied;
A control step in which the control means of the first information processing apparatus causes the first projection means to project onto the overlapping region;
An information processing method comprising: In the computer, the second projection means is in a region overlapping the first projection range of the first projection means of the first information processing apparatus and the second projection range of the second projection means of the second information processing apparatus. A projection procedure for projecting an image;
A request procedure for requesting the second information processing apparatus to stop projecting the overlapping region when the condition for projecting onto the overlapping region by the first projecting unit is satisfied;
A control procedure in which the control means of the first information processing apparatus causes the first projection means to project the overlapping area;
A program for running An information processing method,
The second projection unit displays an image in an area overlapping the first projection range of the first projection unit of the first information processing apparatus and the second projection range of the second projection unit of the second information processing apparatus. A projection step of projecting;
A requesting step of requesting the second information processing apparatus to stop projecting the overlapping region of the second projecting unit when a condition for projecting to the overlapping region by the first projecting unit is satisfied;
A control step in which the control device causes the first projecting means to project onto the overlapping region;
An information processing method comprising: In the computer, the second projection means is in a region overlapping the first projection range of the first projection means of the first information processing apparatus and the second projection range of the second projection means of the second information processing apparatus. A projection procedure for projecting an image;
A request procedure for requesting the second information processing apparatus to stop projecting the overlapping region when the condition for projecting onto the overlapping region by the first projecting unit is satisfied;
A control procedure in which the control device causes the first projecting unit to project onto the overlapping region;
A program for running

Images