JP7017045B2 - Communication terminal, display method, and program - Google Patents

Description

The present invention relates to a communication terminal, a display method, and a program.

A conference system for conducting a remote conference with a remote location via a communication network such as the Internet has become widespread. In this conference system, in a conference room where one of the parties such as attendees who hold a remote conference is present, the communication terminal of the remote conference system is used to capture and collect images and voices of the conference room such as the parties to the conference. However, these are converted into digital data and transmitted to the other party's communication terminal. As a result, it is possible to make a video call (video call) by displaying an image on the display of the other party's conference room and outputting voice through a speaker. (See Patent Document 1).

On the other hand, a photographing device capable of acquiring a spherical panoramic image in real time is connected to a communication terminal, and the spherical panoramic image acquired from this photographing device is distributed to each communication terminal of the other party. , A technique of sequentially performing image conversion processing from a spherical panoramic image to a rectangular plane image and displaying it on a display or the like is known (see Patent Document 2).

However, there are different types of shooting devices used at each site, such as a general shooting device that obtains a rectangular plane image and a special shooting device that obtains two hemispherical images that are the basis of a spherical panoramic image. If they are different, the following problems occur on the communication terminal side that has received the image data.

That is, as shown in FIG. 23 (b), when displaying a predetermined area image which is a predetermined area of the spherical panoramic image by default, four users A1, A2, A3 at the base A Despite the presence of A4, only some users A1 and A2 are displayed. Therefore, it is difficult for the user B1 of the other base B who browses the predetermined area image to grasp whether it is a general image or a special image such as a spherical panoramic image. If user B1 misunderstands that the displayed image is a general image, two users are used at the base A even though four users are participating in the video call. There is a possibility of misunderstanding that only people are participating.

The invention according to claim 1 is from an image type management means for associating and managing image data identification information for identifying image data and image type information indicating an image type related to the image data, and another communication terminal. The size of the image related to the received image data based on the received image data and the image type information indicating the type of the image related to the transmitted image data and the received image type information. The display control means is provided with a display control means for changing and displaying the image, indicating that the image type information is an all-sky panorama image or a general image representing an image other than the all-sky panorama image. Displays a plurality of images including the all-sky panorama image on the display, and indicates that the image type information among the plurality of images is the all-sky panorama image. A part of the predetermined area image is displayed by expanding the image angle of the coordinates including the image angle in the three-dimensional virtual space by a predetermined time of the initial setting value, or displaying a plurality of the above image without expanding the image angle. It is a communication terminal characterized by combining and displaying images in a predetermined area.

As described above, according to the present invention, the user of each base can grasp at a glance that the special image is displayed. This makes it possible to prevent users at each base from misunderstanding the number of people participating in the video call.

(A) is a left side view of the photographing device, (b) is a front view of the photographing device, and (c) is a plan view of the photographing device. It is a use image figure of a photographing apparatus. (A) is a hemispherical image (front) taken by the photographing device, (b) is a hemispherical image (rear) taken by the photographing device, and (c) is a diagram showing an image represented by the Mercator projection. (A) A conceptual diagram showing a state of covering a sphere in a Mercator image, and (b) a diagram showing a panoramic image of an omnidirectional sphere. It is a figure which showed the position of the virtual camera and a predetermined area when the whole celestial sphere panoramic image is made into a three-dimensional three-dimensional sphere. (A) is a three-dimensional perspective view of FIG. 5, and (b) is a diagram showing a state in which an image of a predetermined area is displayed on the display of a communication terminal. It is a figure which showed the relationship between the predetermined area information and the image of a predetermined area T. It is a schematic diagram of the image communication system which concerns on embodiment of this invention. It is a hardware block diagram of a photographing apparatus. It is a hardware configuration diagram of a video conference terminal. It is a hardware block diagram of a communication management system and a PC. It is a hardware configuration diagram of a smartphone. It is a functional block diagram of an image communication system. It is a conceptual diagram which shows the image type management table. It is a conceptual diagram which shows the photographing apparatus management table. It is a conceptual diagram which shows the session management table. It is a conceptual diagram which shows the image type management table. It is a sequence diagram which showed the participation process to a specific communication session. It is a figure which showed the selection screen of a communication session (virtual conference room). It is a sequence diagram which shows the management process of image type information. It is a sequence diagram which shows the communication process of the image data in a video call. (A) shows the case where the photographing apparatus 1a is not used, and (b) shows the case where the photographing apparatus 1a is used. It is a figure which shows the display example of the display in a base B. It is a figure which shows the display example of the display in a base B. It is a figure which shows the display example of the display in a base B.

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

<< Outline of Embodiment >>
<How to generate a panoramic image of the whole celestial sphere>
A method of generating a spherical panoramic image will be described with reference to FIGS. 1 to 7.

First, the appearance of the photographing apparatus 1 will be described with reference to FIG. The photographing device 1 is a digital camera for obtaining a captured image that is the basis of a panoramic image of an omnidirectional (360 °) panorama. 1 (a) is a left side view of the photographing device, FIG. 1 (b) is a front view of the photographing device, and FIG. 1 (c) is a plan view of the photographing device.

As shown in FIG. 1 (a), the photographing device 1 has a size that a human can hold with one hand. Further, as shown in FIGS. 1 (a), 1 (b), and 1 (c), the image sensor 103a and the back side (rear side) are on the front side (front side) of the upper part of the photographing apparatus 1. ) Is provided with an image pickup device 103b. These image pickup elements (image sensors) 103a and 103b are used together with an optical member (for example, fisheye lenses 102a and 102b described later) capable of capturing a hemispherical image (angle of view of 180 ° or more). Further, as shown in FIG. 1B, an operation unit 115 such as a shutter button is provided on the surface of the photographing device 1 opposite to the front side.

Next, the usage status of the photographing apparatus 1 will be described with reference to FIG. Note that FIG. 2 is an image diagram of the use of the photographing apparatus. As shown in FIG. 2, the photographing device 1 is used, for example, for the user to hold the image in his / her hand and photograph a subject around the user. In this case, two hemispherical images can be obtained by taking an image of a subject around the user by the image sensor 103a and the image sensor 103b shown in FIG. 1, respectively.

Next, the outline of the process from the image taken by the photographing apparatus 1 to the creation of the spherical panoramic image will be described with reference to FIGS. 3 and 4. 3 (a) is a hemispherical image (front side) taken by the photographing device, FIG. 3 (b) is a hemispherical image (rear side) taken by the photographing device, and FIG. 3 (c) is represented by the Mercator projection. It is a figure which showed the image (hereinafter, referred to as "Mercator image"). FIG. 4A is a conceptual diagram showing a state of covering a sphere in a Mercator image, and FIG. 4B is a diagram showing a panoramic image of an omnidirectional sphere.

As shown in FIG. 3A, the image obtained by the image pickup device 103a is a hemispherical image (front side) curved by the fisheye lens 102a described later. Further, as shown in FIG. 3B, the image obtained by the image pickup device 103b is a hemispherical image (rear side) curved by the fisheye lens 102b described later. Then, the hemispherical image (front side) and the hemispherical image (rear side) inverted by 180 degrees are combined by the photographing apparatus 1, and a Mercator image is created as shown in FIG. 3 (c).

Then, by using OpenGL ES (Open Graphics Library for Embedded Systems), as shown in FIG. 4 (a), the Mercator image is pasted so as to cover the spherical surface, and in FIG. 4 (b). An omnidirectional panoramic image as shown is created. In this way, the spherical panoramic image is represented as an image in which the Mercator image faces the center of the sphere. OpenGL ES is a graphics library used to visualize 2D (2-Dimensions) and 3D (3-Dimensions) data. The spherical panoramic image may be a still image or a moving image.

As described above, since the spherical panoramic image is an image pasted so as to cover the spherical surface, it gives a sense of discomfort to humans. Therefore, by displaying a part of the predetermined area of the spherical panoramic image (hereinafter referred to as “predetermined area image”) as a flat image with less curvature, it is possible to display the image without giving a sense of discomfort to humans. This will be described with reference to FIGS. 5 and 6.

Note that FIG. 5 is a diagram showing the positions of a virtual camera and a predetermined area when the panoramic image of the whole celestial sphere is a three-dimensional three-dimensional sphere. The virtual camera IC corresponds to the position of the viewpoint of the user who sees the panoramic image of the whole celestial sphere displayed as a three-dimensional three-dimensional sphere. 6 (a) is a three-dimensional perspective view of FIG. 5, and FIG. 6 (b) is a diagram showing a predetermined area image when displayed on a display. Further, in FIG. 6A, the spherical panoramic image shown in FIG. 4 is represented by a three-dimensional three-dimensional sphere CS. Assuming that the spherical panoramic image generated in this way is a three-dimensional sphere CS, the virtual camera IC is located outside the spherical panoramic image as shown in FIG. The predetermined area T in the spherical panoramic image is a shooting area of the virtual camera IC, and the position coordinates (x (rH), y) including the angle of view of the virtual camera IC in the three-dimensional virtual space including the spherical panoramic image. It is specified by the predetermined area information indicating (rV), angle of view α (angle)). The zoom of the predetermined region T can be expressed by expanding or contracting the range (arc) of the angle of view α. Further, the zoom of the predetermined area T can be expressed by moving the virtual camera IC closer to or farther from the spherical panoramic image.

Then, as shown in FIG. 6B, the predetermined area image, which is the image of the predetermined area T shown in FIG. 6A, is an image of the photographing area of the virtual camera IC on the predetermined display. Is displayed as. The image shown in FIG. 6B is a predetermined area image represented by the predetermined area information that has been initially set (default). It should be noted that the predetermined area information and the position coordinates of the virtual camera IC may be indicated by the shooting area (X, Y, Z) of the virtual camera IC which is the predetermined area T. Hereinafter, the description will be made using the position coordinates (x (rH), y (rV), and angle of view α (angle)) of the virtual camera IC.

Next, the relationship between the predetermined area information and the image of the predetermined area T will be described with reference to FIG. 7. Note that FIG. 7 is a diagram showing the relationship between the predetermined area information and the image of the predetermined area T. As shown in FIG. 7, the center point CP when the diagonal angle of view of the predetermined area T represented by the angle of view α of the virtual camera IC is 2L is the (x, y) parameter of the predetermined area information. Become. f is the distance from the virtual camera IC to the center point CP. L is the distance between an arbitrary vertex of the predetermined region T and the center point CP (2L is a diagonal line). Then, in FIG. 7, the trigonometric function generally represented by the following equation (1) holds.

Lf = tan (α / 2) ... (Equation 1)
<Outline of image communication system>
Subsequently, with reference to FIG. 8, the outline of the configuration of the image communication system of the present embodiment will be described. FIG. 8 is a schematic diagram of the configuration of the image communication system of the present embodiment.

As shown in FIG. 8, the image communication system of the present embodiment is equipped with an imaging device 1a, 1b, a video conference terminal 3, a communication management system 5, a PC (Personal Computer) 7, an imaging device 8, and a smartphone 9. It is configured and can communicate via a communication network 100 such as the Internet. The connection form of the communication network 100 may be either wireless or wired.

Of these, the photographing devices 1a and 1b are special digital cameras for photographing a subject, a landscape, and the like to obtain two hemispherical images that are the basis of a spherical panoramic image, as described above. On the other hand, the photographing device 8 is a general digital camera for photographing a subject, a landscape, and the like to obtain a general planar image.

The video conference terminal 3 is a terminal dedicated to video conference, and displays an image of a video call (video call) on the display 4 via a wired cable such as a USB (Universal Serial Bus) cable. The video conference terminal 3 normally shoots with the camera 312 described later, but when the video conference terminal 3 is connected to the cradle 2a to which the shooting device 1a is attached with a wired cable, the shooting device 1a has priority and becomes the source of the spherical panoramic image2. Two hemispherical images can be obtained. When a wired cable is used, the cradle 2a not only communicates between the photographing device 1a and the video conference terminal 3, but also plays a role of supplying power to the photographing device 1a and supporting the photographing device 1a. Here, the photographing device 1a, the cradle 2a, the video conference terminal 3, and the display 4 are located at the same base A. In addition, four users A1, A2, A3, and A4 are participating in the video call at the base A.

The communication management system 5 manages the communication of the video conference terminal 3, the PC 7, and the smartphone 9, and manages the types of image data (general image and special image types) to be transmitted and received. Here, the special image is a spherical panoramic image. The communication management system 5 is installed in a service company or the like that provides a video communication service. Further, the communication management system 5 may be constructed by a single computer, or may be constructed by a plurality of computers arbitrarily assigned by dividing each unit (function, means, or storage unit).

By attaching the photographing device 8 to the PC 7, a video call can be made. Here, the PC 7 and the photographing apparatus 8 are located at the base C, which is the same base. Further, at the base C, one user C participates in a video call.

The smartphone 9 displays an image of a video call on a display 917, which will be described later, provided in the own device. The smartphone 9 usually shoots with a CMOS (Complementary Metal Oxide Semiconductor) sensor 905 or the like, which will be described later, provided in its own device, but it uses wireless communication technology such as WiFi (Wireless Fidelity) or Bluetooth (registered trademark) to take pictures. It is possible to acquire two hemispherical image data that are the basis of the all-sky panoramic image obtained by the photographing apparatus 1b. When using wireless communication technology, the cradle 2b serves only to supply power to the photographing device 1b and support the photographing device 1b. Here, the photographing device 1b, the cradle 2b, and the smartphone 9 are located at the base B, which is the same base. In addition, two users B1 and B2 are participating in the video call at the base B.

Further, the video conference terminal 3, the PC 7, and the smartphone 9 are examples of communication terminals. OpenGL ES is installed in each communication terminal, and it creates predetermined area information indicating a part of the spherical panoramic image, and the spherical image panoramic image sent from other communication terminals. It is possible to create a predetermined area image from.

The arrangement of each terminal, device, and user shown in FIG. 8 is an example, and may be another example. For example, at the base C, instead of the photographing device 8, a photographing device capable of photographing a spherical panoramic image may be used. The communication terminal also includes a digital television, a smart watch, a car navigation device, and the like. Further, hereinafter, when any imaging device among the imaging devices 1a and 1b is represented, it is referred to as “photographing device 1”.

<< Hardware configuration of the embodiment >>
Next, the hardware configurations of the photographing device 1, the video conference terminal 3, the communication management system 5, the PC 7, and the smartphone 9 of the present embodiment will be described in detail with reference to FIGS. 9 to 12. Since the photographing device 8 is a general camera, detailed description thereof will be omitted.

<Hardware configuration of shooting device 1>
First, the hardware configuration of the photographing apparatus 1 will be described with reference to FIG. FIG. 9 is a hardware configuration diagram of the photographing device 1. In the following, the photographing device 1 is an omnidirectional (omnidirectional) photographing device using two image pickup elements, but the number of image pickup elements may be two or more. Further, the device does not necessarily have to be a device dedicated to omnidirectional shooting, and by attaching a retrofit omnidirectional shooting unit to a normal digital camera, smartphone, or the like, it may have substantially the same function as the shooting device 1. ..

As shown in FIG. 9, the photographing apparatus 1 includes an imaging unit 101, an image processing unit 104, an imaging control unit 105, a microphone 108, a sound processing unit 109, a CPU (Central Processing Unit) 111, and a ROM (Read Only Memory). ) 112, SRAM (Static Random Access Memory) 113, DRAM (Dynamic Random Access Memory) 114, operation unit 115, network I / F 116, communication unit 117, and antenna 117a.

Of these, the image pickup unit 101 is a wide-angle lens (so-called fisheye lens) 102a, 102b each having an angle of view of 180 ° or more for forming a hemispherical image, and two image pickups provided corresponding to each wide-angle lens. It includes elements 103a and 103b. The image pickup elements 103a and 103b are image sensors such as CMOS (Complementary Metal Oxide Semiconductor) sensors and CCD (Charge Coupled Device) sensors that convert optical images from fisheye lenses 102a and 102b into image data of electrical signals and output them. It has a timing generation circuit that generates a horizontal or vertical sync signal, a pixel clock, and the like, and a group of registers in which various commands and parameters necessary for the operation of this image sensor are set.

The image pickup elements 103a and 103b of the image pickup unit 101 are each connected to the image processing unit 104 by a parallel I / F bus. On the other hand, the image pickup elements 103a and 103b of the image pickup unit 101 are connected by a serial I / F bus (I2C bus or the like) separately from the image pickup control unit 105. The image processing unit 104 and the image pickup control unit 105 are connected to the CPU 111 via the bus 110. Further, a ROM 112, a SRAM 113, a DRAM 114, an operation unit 115, a network I / F 116, a communication unit 117, an electronic compass 118, and the like are also connected to the bus 110.

The image processing unit 104 takes in the image data output from the image pickup elements 103a and 103b through the parallel I / F bus, performs predetermined processing on each image data, and then synthesizes these image data. , Create mercatle image data as shown in FIG. 3 (c).

The image pickup control unit 105 generally uses the image pickup control unit 105 as a master device and the image pickup elements 103a and 103b as slave devices, and sets commands and the like in the register group of the image pickup elements 103a and 103b by using the I2C bus. Necessary commands and the like are received from the CPU 111. Further, the image pickup control unit 105 also uses the I2C bus to take in the status data and the like of the register group of the image pickup elements 103a and 103b and send them to the CPU 111.

Further, the image pickup control unit 105 instructs the image pickup devices 103a and 103b to output image data at the timing when the shutter button of the operation unit 115 is pressed. Depending on the photographing device 1, it may have a preview display function by a display (for example, the display of the video conference terminal 3) or a function corresponding to a moving image display. In this case, the image data is continuously output from the image pickup devices 103a and 103b at a predetermined frame rate (frames / minute).

Further, as will be described later, the image pickup control unit 105 also functions as a synchronization control means for synchronizing the output timings of the image data of the image pickup elements 103a and 103b in cooperation with the CPU 111. In the present embodiment, the photographing apparatus 1 is not provided with a display unit, but a display unit may be provided.

The microphone 108 converts sound into sound (signal) data. The sound processing unit 109 takes in the sound data output from the microphone 108 through the I / F bus and performs predetermined processing on the sound data.

The CPU 111 controls the overall operation of the photographing apparatus 1 and executes necessary processing. The ROM 112 stores various programs for the CPU 111. The SRAM 113 and the DRAM 114 are work memories, and store programs executed by the CPU 111, data in the middle of processing, and the like. In particular, the DRAM 114 stores image data during processing by the image processing unit 104 and data of processed Mercator images.

The operation unit 115 is a general term for various operation buttons, a power switch, a shutter button, a touch panel having both display and operation functions, and the like. By operating the operation buttons, the user inputs various shooting modes and shooting conditions.

Network I / F116 is a general term for interface circuits (USB I / F, etc.) with external media such as SD cards and personal computers. The network I / F116 may be wireless or wired. The Mercator image data stored in the DRAM 114 is recorded on an external medium via the network I / F 116, or transmitted to an external device such as a video conference terminal 3 via the network I / F 116 as needed. Or something.

The communication unit 117 communicates with an external device such as a video conference terminal 3 by a short-range wireless technology such as WiFi or NFC (Near Field Communication) via an antenna 117a provided in the photographing device 1. The communication unit 117 can also transmit the Mercator image data to the external device of the video conference terminal 3.

The electronic compass 118 calculates the direction and tilt (Roll rotation angle) of the photographing device 1 from the magnetism of the earth, and outputs the direction / tilt information. This orientation / tilt information is an example of related information (metadata) along with Exif, and is used for image processing such as image correction of a captured image. The related information also includes the shooting date and time of the image and the data capacity of the image data.

<Hardware configuration of video conference terminal>
Next, the hardware configuration of the video conference terminal 3 will be described with reference to FIG. FIG. 10 is a hardware configuration diagram of a video conference terminal. As shown in FIG. 10, the video conferencing terminal 3 includes a CPU 301, a ROM 302, a RAM 303, a flash memory 304, an SSD 305, a media I / F 307, an operation button 308, a power switch 309, a bus line 310, and a network I / F 311. It is equipped with a camera 312, an image pickup element I / F313, a microphone 314, a speaker 315, a sound input / output I / F316, a display I / F317, an external device connection I / F318, a short-range communication circuit 319, and an antenna 319a of the short-range communication circuit 319. ing.

Of these, the CPU 301 controls the operation of the entire video conference terminal 3. The ROM 302 stores a program used for driving the CPU 301 such as an IPL (Initial Program Loader). The RAM 303 is used as a work area of the CPU 301. The flash memory 304 stores various data such as a communication program, image data, and sound data. The SSD (Solid State Drive) 305 controls reading or writing of various data to the flash memory 304 according to the control of the CPU 301. An HDD may be used instead of the SSD. The media I / F 307 controls reading or writing (storage) of data to the recording medium 306 such as a flash memory. The operation button 308 is a button operated when selecting a destination of the video conference terminal 3. The power switch 309 is a switch for switching ON / OFF of the power of the video conference terminal 3.

Further, the network I / F311 is an interface for performing data communication using a communication network 100 such as the Internet. The camera 312 is a kind of built-in imaging means for capturing an image of a subject and obtaining image data under the control of the CPU 301. The image sensor I / F 313 is a circuit that controls the drive of the camera 312. The microphone 314 is a kind of built-in sound collecting means for inputting voice. The sound input / output I / F 316 is a circuit that processes sound signal input / output between the microphone 314 and the speaker 315 under the control of the CPU 301. The display I / F 317 is a circuit that transmits image data to the external display 320 according to the control of the CPU 301. The external device connection I / F318 is an interface for connecting various external devices. The short-range communication circuit 319 is a communication circuit such as NFC (registered trademark) and Bluetooth (registered trademark).

Further, the bus line 310 is an address bus, a data bus, or the like for electrically connecting each component such as the CPU 301 shown in FIG.

The display 4 is a kind of display means composed of a liquid crystal display or an organic EL for displaying an image of a subject, an operation icon, and the like. Further, the display 4 is connected to the display I / F317 by the cable 4c. The cable 4c may be a cable for analog RGB (VGA) signals, a cable for component video, HDMI (High-Definition Multimedia Interface) (registered trademark), or DVI (Digital Video). It may be a cable for Interactive) signals.

The camera 312 includes a lens and a solid-state image sensor that converts light into a charge to digitize an image (video) of the subject, and a CMOS sensor, a CCD sensor, or the like is used as the solid-state image sensor. External devices such as an external camera, an external microphone, and an external speaker can be connected to the external device connection I / F318 by a USB (Universal Serial Bus) cable or the like. When an external camera is connected, the external camera is driven in preference to the built-in camera 312 according to the control of the CPU 301. Similarly, when an external microphone is connected or an external speaker is connected, the external microphone or the external speaker is given priority over the built-in microphone 314 and the built-in speaker 315 according to the control of the CPU 301. The external speaker is driven.

Further, the recording medium 306 has a structure that can be attached to and detached from the video conference terminal 3. Further, as long as it is a non-volatile memory that reads or writes data under the control of the CPU 301, not only the flash memory 304 but also an EEPROM (Electrically Erasable and Programmable ROM) or the like may be used.

<Communication management system, PC hardware configuration>
Next, the hardware configurations of the communication management system 5 and the PC 7 will be described with reference to FIG. FIG. 11 is a hardware configuration diagram of a communication management system and a PC. Since both the communication management system 5 and the PC 7 have the same computer configuration, the configuration of the communication management system 5 will be described below, and the description of the configuration of the PC 7 will be omitted.

The communication management system 5 includes a CPU 501 that controls the operation of the entire communication management system 5, a ROM 502 that stores a program used for driving the CPU 501 such as an IPL, a RAM 503 that is used as a work area of the CPU 501, and a program for the communication management system 5. HD504 that stores various data such as, HDD (Hard Disk Drive) 505 that controls reading or writing of various data to HD504 according to the control of CPU501, reading or writing (storage) of data to recording media 506 such as flash memory. Media drive 507 to control, display 508 that displays various information such as cursors, menus, windows, characters, or images, network I / F 509 for data communication using communication network 100, characters, numerical values, various instructions, etc. A keyboard 511 equipped with multiple keys for inputting data, a mouse 512 for selecting and executing various instructions, selecting processing targets, moving the cursor, etc., and a CD-RW (Compact Disc) as an example of a removable recording medium. -ReWritable) CD-RW drive 514 that controls reading or writing of various data to 513, and an address bus, data bus, etc. for electrically connecting each of the above components as shown in FIG. It is equipped with a bus line 510.

<Smartphone hardware configuration>
Next, the hardware of the smartphone will be described with reference to FIG. FIG. 12 is a hardware configuration diagram of a smartphone. As shown in FIG. 12, the smartphone 9 includes a CPU 901, a ROM 902, a RAM 903, an EEPROM 904, a CMOS sensor 905, an acceleration / direction sensor 906, a media I / F 908, and a GPS receiving unit 909.

Of these, the CPU 901 controls the operation of the entire smartphone 9. The ROM 902 stores a program used to drive the CPU 901 such as an IPL. The RAM 903 is used as a work area for the CPU 901. The EEPROM 904 reads or writes various data such as a smartphone program according to the control of the CPU 901. The CMOS (Complementary Metal Oxide Semiconductor) sensor 905 captures a subject (mainly a self-portrait) according to the control of the CPU 901 and obtains image data. The acceleration / orientation sensor 906 is a variety of sensors such as an electronic magnetic compass, a gyro compass, and an acceleration sensor that detect the geomagnetism. The media I / F908 controls reading or writing (storage) of data to a recording medium 907 such as a flash memory. The GPS receiving unit 909 receives a GPS signal from a GPS satellite.

Further, the smartphone 9 includes a long-distance communication circuit 911, a camera 912, an image pickup element I / F 913, a microphone 914, a speaker 915, a sound input / output I / F 916, a display 917, an external device connection I / F 918, and a short-range communication circuit 919. It includes an antenna 919a of the short-range communication circuit 919 and a touch panel 921.

Of these, the telecommunications circuit 911 is a circuit that communicates with other devices via the communication network 100. The camera 912 is a kind of built-in image pickup means for capturing an image of a subject and obtaining image data under the control of the CPU 901. The image sensor I / F 913 is a circuit that controls the drive of the camera 912. The microphone 914 is a kind of built-in sound collecting means for inputting voice. The sound input / output I / F 916 is a circuit that processes sound signal input / output between the microphone 914 and the speaker 915 under the control of the CPU 901. The display 917 is a kind of display means such as a liquid crystal display or an organic EL for displaying an image of a subject, various icons, and the like. The external device connection I / F 918 is an interface for connecting various external devices. The short-range communication circuit 919 is a communication circuit such as NFC or Bluetooth. The touch panel 921 is a kind of input means for operating the smartphone 9 by the user pressing the display 917.

Further, the smartphone 9 is provided with a bus line 910. The bus line 910 is an address bus, a data bus, or the like for electrically connecting each component such as the CPU 901.

A recording medium such as a CD-ROM in which each of the above programs is stored, and an HD in which these programs are stored can be provided as a program product in Japan or abroad.

<< Functional configuration of the embodiment >>
Next, the functional configuration of this embodiment will be described with reference to FIGS. 13 to 17. FIG. 13 is a functional block diagram of the photographing devices 1a and 1b, the video conference terminal 3, the communication management system 5, the PC 7, and the smartphone 9, which form a part of the image communication system of the present embodiment.

<Functional configuration of imaging device 1a>
As shown in FIG. 13, the photographing apparatus 1a includes a receiving unit 12a, an imaging unit 13a, a sound collecting unit 14a, a communication unit 18a, and a storage / reading unit 19a. Each of these parts is a function or means realized by operating any of the components shown in FIG. 9 by a command from the CPU 111 according to a program for a photographing apparatus developed on the DRAM 114 from the SRAM 113. Is.

Further, the photographing apparatus 1 has a storage unit 1000a constructed by the ROM 112, the SRAM 113, and the DRAM 114 shown in FIG. The storage unit 1000a stores the GUID (Globally Unique Identifier) of the own device.

(Each function configuration of the photographing device 1a)
Next, each functional configuration of the photographing apparatus 1a will be described in more detail with reference to FIGS. 9 and 13.

The reception unit 12a of the photographing apparatus 1a is realized mainly by the processing of the operation unit 115 and the CPU 111 shown in FIG. 9, and receives the operation input from the user.

The image pickup unit 13a is realized mainly by the processing of the image pickup unit 101, the image processing unit 104, the image pickup control unit 105, and the CPU 111 shown in FIG. 9, and images a landscape or the like to obtain photographed image data.

The sound collecting unit 14a is realized by the processing of the microphone 108, the sound processing unit 109, and the CPU 111 shown in FIG. 9, and collects the sound around the photographing device 1.

The communication unit 18a is realized mainly by the processing of the CPU 111, and can communicate with the communication unit 38 of the video conference terminal 3 by a short-range wireless communication technology such as NFC standard, BlueTooth, and WiFi.

The storage / reading unit 19a is mainly realized by the processing of the CPU 111 shown in FIG. 9, and stores various data (or information) in the storage unit 1000a or stores various data (or information) from the storage unit 1000a. Read it out.

<Each functional configuration of the photographing device 1b>
The photographing apparatus 1b has a receiving unit 12b, an imaging unit 13b, a sound collecting unit 14b, a communication unit 18b, and a storage / reading unit 19b. Since each of these has the same functions as the reception unit 12a, the image pickup unit 13a, the sound collection unit 14a, the communication unit 18a, and the storage / reading unit 19a in the photographing apparatus 1a, the description thereof will be omitted. Further, the photographing apparatus 1 has a storage unit 1000b constructed by the ROM 112, the SRAM 113, and the DRAM 114 shown in FIG. The GUID of the own device is stored in the storage unit 1000b.

<Functional configuration of video conference terminal 3>
As shown in FIG. 13, the video conference terminal 3 includes a transmission / reception unit 31, a reception unit 32, an image / sound processing unit 33, a display control unit 34, a determination unit 35, a creation unit 36, a communication unit 38, and a storage unit. -Has a reading unit 39. Each of these parts is realized by operating any of the components shown in FIG. 10 by a command from the CPU 301 according to the program for the video conference terminal 3 developed on the RAM 303 from the flash memory 304. A function or means.

Further, the video conference terminal 3 has a storage unit 3000 constructed by the ROM 302, the RAM 303, and the flash memory 304 shown in FIG. An image type management DB 3001 and a photographing device management DB 3002 are constructed in the storage unit 3000. Of these, the image type management DB 3001 is configured by the image type management table shown in FIG. The photographing apparatus management DB 3002 is configured by the photographing apparatus management table shown in FIG.

(Image type management table)
FIG. 14 is a conceptual diagram showing an image type management table. In this image type management table, an image data ID, an IP address as an example of a destination of a source terminal, and a source name are stored and managed in association with each other. Of these, the image data ID is an example of image data identification information for identifying image data when performing video communication. The same image data ID is added to the image data transmitted from the same source terminal. As a result, the destination terminal (communication terminal on the receiving side) can specify the source terminal of the received image data. The IP address of the source terminal indicates the IP address of the communication terminal that transmits the image data indicated by the associated image data ID. The source name is a name for specifying a photographing device that outputs image data indicated by the associated image data ID, and is an example of image type information. This source name is a name created by each communication terminal such as a video conference terminal 3 according to a naming convention of a predetermined name.

For example, each of the three communication terminals having IP addresses of "1.2.1.3", "1.2.2.3", and "1.3.1.3" has an image data ID "RS001". , "RS002", "RS003" indicates that the image data indicated by "RS002" is being transmitted. Furthermore, the types of images indicated by the source name of each communication terminal are "Video_Theta", "Video", and "Video_Theta", and these image types are "special image", "general image", and "special image" in that order. It shows that it is. The special image is a spherical panoramic image here.

Data other than image data may also be managed in association with the image data ID. The data other than the image data are, for example, sound data and material data at the time of screen sharing.

(Shooting device management table)
FIG. 15 is a conceptual diagram showing a photographing apparatus management table. In this photographing apparatus management table, the vendor ID and the product ID among the GUIDs of the photographing apparatus capable of obtaining the two hemispherical images which are the sources of the spherical panoramic images are stored and managed. As the GUID, for example, a vendor ID (VID) and a product ID (PID) used in a USB device can be used. The vendor ID and the product ID are stored from the factory shipment of a communication terminal such as a video conference terminal, but may be additionally stored after the factory shipment.

(Each function configuration of the video conference terminal 3)
Next, each functional configuration of the video conference terminal 3 will be described in more detail with reference to FIGS. 10 and 13.

The transmission / reception unit 31 of the video conference terminal 3 is mainly realized by the processing of the network I / F311 and the CPU 301 shown in FIG. 10, and is realized by the communication management system 5 and various data (or information) via the communication network 100. Send and receive.

The reception unit 32 is realized mainly by processing by the operation buttons 308 and the CPU 301, and receives various selections or inputs from the user. Further, not only the operation button 308 but also a touch panel or the like may be used as another input means.

The image / sound processing unit 33 is realized by a command from the CPU 301 shown in FIG. 10, and performs image processing on the image data obtained by the camera 312 taking an image of the subject. Further, the image / sound processing unit 33 performs voice processing on the sound data related to the voice signal after the user's voice is converted into a voice signal by the microphone 314.

Further, in order for the display control unit 34 to display an image on the display 4, the image / sound processing unit 33 performs image processing on the image data received from another communication terminal based on the image type information such as the source name. Do it. Specifically, when the image type information indicates that the image is a special image, the image / sound processing unit 33 uses the image data (for example, as shown in FIGS. 3A and 3B). Based on the hemispherical image data), the all-sky panorama image data is created by converting to the all-sky panorama image data as shown in FIG. 4 (b), and further, in FIG. 6 (b). Create a predetermined area image as shown. Further, the image / sound processing unit 33 outputs a sound signal related to sound data received from another communication terminal via the communication management system 5 to the speaker 315, and outputs the sound from the speaker 315.

The display control unit 34 is realized mainly by the processing of the display I / F 317 and the CPU 301, and controls the display 4 to display various images, characters, and the like.

The determination unit 35 is realized mainly by the processing of the CPU 301, and determines, for example, the image type related to the image data received from the photographing apparatus 1a.

The creation unit 36 is realized mainly by the processing of the CPU 301, and based on the result determined by the determination unit 35 as a general image or a special image (here, a spherical panoramic image), the image type is according to the above-mentioned naming convention. Create a source name that is an example of information. For example, when the determination unit 35 determines that the image is a general image, the creation unit 36 creates a source name "Video" indicating that the image is a general image. On the other hand, when the determination unit 35 determines that the image is a special image, the creation unit 36 creates a source name "Video_Theta" indicating that the image is a special image.

The communication unit 38 is realized mainly by processing the short-range communication circuit 319, the antenna 318a, and the CPU 301, and can communicate with the communication unit 18a of the photographing device 1a by short-range wireless technology using NFC, BlueTooth, WiFi, or the like. can. Although the communication unit 38 and the transmission / reception unit 31 have been described with a configuration in which the communication unit is separately provided, a shared configuration may be used.

The storage / reading unit 39 is mainly realized by the processing of the CPU 301 shown in FIG. 10, and stores various data (or information) in the storage unit 3000 or stores various data (or information) from the storage unit 3000. Read it out.

<Functional configuration of communication management system>
Next, each functional configuration of the communication management system 5 will be described in detail with reference to FIGS. 11 and 13. The communication management system 5 has a transmission / reception unit 51, a determination unit 55, a generation unit 56, and a storage / reading unit 59. Each of these parts has a function realized by operating any of the components shown in FIG. 11 by an instruction from the CPU 501 according to the program for the communication management system 5 developed on the RAM 503 from the HD 504. It is a means.

Further, the communication management system 5 has a RAM 503 shown in FIG. 11 and a storage unit 5000 constructed by the HD 504. A session management DB 5001 and an image type management DB 5002 are constructed in the storage unit 5000. Of these, the session management DB 5001 is configured by the session management table shown in FIG. The image type management DB 5002 is configured by the image type management table shown in FIG.

(Session management table)
FIG. 16 is a conceptual diagram showing a session management table. In this session management table, the session ID and the IP address of the participating communication terminal are stored and managed in association with each other. Of these, the session ID is an example of session identification information for identifying a communication session that realizes a video call, and is generated for each virtual conference room. The session ID is also managed by each communication terminal such as the video conference terminal 3, and is used when selecting a communication session in each communication terminal. The IP address of the participating communication terminal indicates the IP address of the communication terminal that participated in the virtual conference room indicated by the associated session ID.

(Image type management table)
FIG. 17 is a conceptual diagram showing an image type management table. In the image type management table shown in FIG. 17, in addition to each information managed in the image type management table shown in FIG. 14, the same session ID as the session ID managed in the session management table is associated with each other. Is managed. Here, in the virtual conference room represented by the same session ID "se101", the IP addresses are "1.2.1.3", "1.2.2.3", and "1.3.1.", Respectively. It is shown that the three communication terminals of "3" are participating. In the communication management system 5, the new communication terminal manages the same image data ID, source terminal IP address, and image type information managed by the communication terminal such as the video conference terminal 3. This is to transmit image type information and the like to a communication terminal that is already in a video call and a newly joined communication terminal when entering a virtual conference room. As a result, it is not necessary to send and receive image type information and the like between the communication terminal already in the video call and the newly joined communication terminal.

(Each function configuration of communication management system)
Next, each functional configuration of the communication management system 5 will be described in detail with reference to FIGS. 11 and 13.

The transmission / reception unit 51 of the communication management system 5 is mainly realized by the processing of the network I / F 509 and the CPU 501 shown in FIG. 11, and various data (or various data) (or various data) are realized with the video conference terminal 3 or the PC 7 via the communication network 100. Information) is sent and received.

The determination unit 55 is realized mainly by the processing of the CPU 501, and makes various determinations.

The generation unit 56 is realized mainly by the processing of the CPU 501, and generates an image data ID.

The storage / reading unit 59 is mainly realized by the processing of the HDD 505 and the CPU 501 shown in FIG. 11, and can store various data (or information) in the storage unit 5000 or various data (or information) from the storage unit 5000. Information) is read out.

<PC function configuration>
Next, the functional configuration of the PC 7 will be described in detail with reference to FIGS. 11 and 13. The PC 7 basically has the same function as the video conference terminal 3. That is, as shown in FIG. 13, the PC 7 includes a transmission / reception unit 71, a reception unit 72, an image / sound processing unit 73, a display control unit 74, a determination unit 75, a creation unit 76, a communication unit 78, and a storage unit. It has a reading unit 79. Each of these parts is a function or means realized by operating any of the components shown in FIG. 11 by an instruction from the CPU 501 according to a program for PC7 developed on the RAM 503 from the HD 504. ..

Further, the PC 7 has a storage unit 7000 constructed by the ROM 502, the RAM 503, and the HD 504 shown in FIG. An image type management DB 7001 and a photographing device management DB 7002 are constructed in the storage unit 7000. Since the image type management DB 7001 and the photographing device management DB 7002 have the same configuration as the image type management DB 3001 and the photographing device management DB 3002, respectively, the description thereof will be omitted.

(Each function configuration of PC)
The transmission / reception unit 71 of the PC 7 is mainly realized by the processing of the network I / F 509 and the CPU 501 shown in FIG. 11, and realizes the same function as the transmission / reception unit 31.

The reception unit 72 is realized mainly by processing the keyboard 511, the mouse 512, and the CPU 501, and realizes the same functions as the reception unit 32. The image / sound processing unit 73 is realized mainly by a command from the CPU 501, and realizes the same function as the image / sound processing unit 33. The display control unit 74 is realized mainly by the processing of the CPU 501, and realizes the same function as the display control unit 34. The determination unit 75 is realized mainly by the processing of the CPU 501, and realizes the same function as the determination unit 35. The creating unit 76 is realized mainly by the processing of the CPU 501, and realizes the same function as the creating unit 36. The communication unit 78 is mainly realized by the processing of the CPU 501, and realizes the same function as the communication unit 38. The storage / reading unit 79 is realized by the processing of the CPU 501, stores various data (or information) in the storage unit 7000, and reads various data (or information) from the storage unit 7000.

<Functional configuration of smartphone>
Next, the functional configuration of the smartphone 9 will be described in detail with reference to FIGS. 12 and 13. The smartphone 9 basically has the same function as the video conference terminal 3. That is, as shown in FIG. 13, the smartphone 9 has a transmission / reception unit 91, a reception unit 92, an image / sound processing unit 93, a display control unit 94, a judgment unit 95, a creation unit 96, a communication unit 98, and a storage unit. -Has a reading unit 99. Each of these parts is a function or means realized by operating any of the components shown in FIG. 12 by a command from the CPU 901 according to the program for the smartphone 9 developed on the RAM 903 from the EEPROM 904. be.

Further, the smartphone 9 has a storage unit 9000 constructed by the ROM 902, the RAM 903, and the EEPROM 904 shown in FIG. An image type management DB 9001 and a photographing device management DB 9002 are constructed in the storage unit 9000. Since the image type management DB 9001 and the photographing device management DB 9002 have the same configuration as the image type management DB 3001 and the photographing device management DB 3002, respectively, the description thereof will be omitted.

(Each function configuration of smartphone)
The transmission / reception unit 91 of the smartphone 9 is mainly realized by the processing of the long-distance communication circuit 911 and the CPU 901 shown in FIG. 12, and realizes the same function as the transmission / reception unit 31.

The reception unit 92 is realized mainly by the processing of the touch panel 921 and the CPU 901, and realizes the same function as the reception unit 32.

The image / sound processing unit 93 is realized mainly by a command from the CPU 901, and realizes the same function as the image / sound processing unit 33.

The display control unit 94 is realized mainly by the processing of the CPU 901, and realizes the same function as the display control unit 34.

The determination unit 95 is mainly realized by the processing of the CPU 901, and realizes the same function as the determination unit 35.

The creating unit 96 is realized mainly by the processing of the CPU 901, and realizes the same function as the creating unit 36.

The communication unit 98 is mainly realized by the processing of the CPU 901, and realizes the same function as the communication unit 38.

The storage / reading unit 99 is realized by the processing of the CPU 901, stores various data (or information) in the storage unit 9000, and reads various data (or information) from the storage unit 9000.

<< Processing or operation of the embodiment >>
<Participation processing>
Subsequently, the process or operation of the present embodiment will be described with reference to FIGS. 18 to 22. First, the process of participating in a specific communication session will be described with reference to FIGS. 18 and 19. FIG. 18 is a sequence diagram showing a process of participating in a specific communication session. FIG. 19 is a diagram showing a selection screen of a communication session (virtual conference room).

First, when the user of the base A (for example, the user A1) operates to display the selection screen of the communication session (virtual conference room) on the video conference terminal 3, the reception unit 32 displays the selection screen. Upon receiving the operation, the display control unit 34 displays the selection screen as shown in FIG. 19 on the display 4 (step S21). On this selection screen, selection buttons b1, b2, b3 and the like indicating each virtual conference room R1, R2, R3 and the like to be selected are displayed. Further, each session ID is associated with each selection button b1 and the like.

Here, when the user A1 selects a desired selection button (here, selection button b1) in the virtual conference room, the reception unit 32 accepts the selection of the communication session (step S22). Then, the transmission / reception unit 31 transmits a request for participation in the virtual conference room to the communication management system 5 (step S23). The participation request includes a session ID indicating the communication session whose selection has been accepted in step S22, and the IP address of the video conference terminal 3 which is the requesting terminal. As a result, the transmission / reception unit 51 of the communication management system 5 receives the participation request.

Next, in the session management DB 5001 (see FIG. 16), the storage / reading unit 99 enters the IP received in step S23 in the field of the participating terminal IP address in the record having the same session ID as the session ID received in step S23. By adding the address, the process of joining the communication session is performed (step S24). Then, the transmission / reception unit 51 transmits a participation request response to the video conference terminal 3 (step S25). The participation request response includes the session ID received in step S23 and the participation processing result. As a result, the transmission / reception unit 31 of the video conference terminal 3 receives the participation request response. Hereinafter, the case where the participation process is successful will be described.

<Image type information management process>
Subsequently, the image type information management process will be described with reference to FIG. FIG. 20 is a sequence diagram showing a management process of image type information.

First, when the user of the base A (for example, the user A1) connects the USB cable of the cradle 2a with the photographing device 1a attached to the video conference terminal 3, the storage / reading unit 19a of the photographing device 1a is connected. The GUID of the own device (shooting device 1a) stored in the storage unit 1000a is read out, and the communication unit 18a transmits the GUID of the own device to the communication unit 38 of the video conference terminal 3 (step S51). As a result, the communication unit 38 of the video conference terminal 3 receives the GUID of the photographing device 1a.

Next, the determination unit 35 of the video conference terminal 3 manages the vendor ID and product ID in the GUID received in step S51 and the same vendor ID and product ID in the photographing device management DB 3002 (see FIG. 15). The image type is determined by determining whether or not the image is present (step S52). Specifically, when the same vendor ID and product ID are managed in the photographing device management DB 3002, the determination unit 35 captures a special image (here, a spherical panoramic image) by the photographing device 1a. Judge that it is a photographing device. On the other hand, when the same vendor ID and product ID are not managed in the photographing device management DB 3002, the determination unit 35 determines that the photographing device 1a is a photographing device for capturing a general image.

Next, the storage / reading unit 39 uses the IP address of the own terminal (video conference terminal 3), which is the source terminal, and the determination result determined in step S52 for the image type management DB 3001 (see FIG. 14). It is stored in association with a certain image type information (step S53). In this state, the image data ID is not associated. The image type information is, for example, a source name defined according to a predetermined naming convention or an image type (general image, special image).

Next, the transmission / reception unit 31 transmits a request for adding image type information to the communication management system 5 (step S54). The request for adding the image type information includes the IP address of the own terminal, which is the source terminal stored in step S53, and the image type information. As a result, the transmission / reception unit 51 of the communication management system 5 receives the request for adding the image type information.

Next, the storage / reading unit 59 of the communication management system 5 searches the session management DB 5001 (see FIG. 16) using the IP address of the source terminal received in step S54 as a search key, and thereby performs the corresponding session ID. Is read (step S55).

Next, the generation unit 56 generates a unique image data ID (step S56). Then, the storage / reading unit 59 registers the session ID read in step S55, the image data ID generated in step S56, and the image data ID in step S54 as new records in the image type management DB 5002 (see FIG. 17). The received IP address of the source terminal and the image type information are associated and stored (step S57). Then, the transmission / reception unit 51 transmits the image data ID generated in step S56 to the video conference terminal 3. As a result, the transmission / reception unit 31 of the video conference terminal 3 receives the image data ID (step S58).

Next, the storage / reading unit 39 of the video conference terminal 3 stores the IP of the own terminal (video conference terminal 3), which is the source terminal stored in the image type management DB 3001 (see FIG. 14), in the image type management DB 3001 (see FIG. 14). The image data ID received in step S58 is stored in association with the address and the image type information (step S59).

On the other hand, the transmission / reception unit 51 of the communication management system 5 transmits an additional notification of image type information to the smartphone 9 which is another communication terminal (step S60). The additional notification of the image type information includes the image data ID generated in step S56, and the IP address and image type information of the own terminal (video conference terminal 3) which is the source terminal stored in step S53. It has been. As a result, the transmission / reception unit 91 of the smartphone 9 receives the additional notification of the image type information. The transmission destination of the transmission / reception unit 51 is the session management DB 5001 (see FIG. 16), and is another IP address associated with the same session ID as the IP address of the video conference terminal 3. That is, the transmission destination is another communication terminal in the same virtual conference room as the video conference terminal 3.

Next, the storage / reading unit 99 of the smartphone 9 has the image data ID, the IP address of the source terminal, and the image type received in step S60 as a new record in the image type management DB 9001 (see FIG. 14). Information is associated and stored (step S61). Similarly, the additional communication of the image type information is transmitted to the PC 7 which is another communication terminal, and is stored in the image type management DB 7001 (see FIG. 14) also in the PC 7. From the above, each communication terminal can share the same information in each image type management DB 3001,7001,9001.

<Communication processing of image data>
The communication process of image data in a video call will be described with reference to FIGS. 21 to 23. FIG. 21 is a sequence diagram showing communication processing of image data in a video call.

First, the image data obtained by photographing a subject, a landscape, or the like is transmitted from the communication unit 18a of the photographing apparatus 1a to the communication unit 38 of the video conference terminal 3 (step S101). In this case, since the photographing device 1a is a device capable of obtaining two hemispherical images that are the basis of the spherical panoramic image, the image data is as shown in FIGS. 3 (a) and 3 (b). It is composed of data from two hemispherical images. As a result, the communication unit 38 of the video conference terminal 3 receives the image data.

Next, the transmission / reception unit 31 of the video conference terminal 3 transmits the image data sent from the photographing device 1a to the communication management system 5 (step S102). This transmission includes an image data ID for identifying the image data to be transmitted. As a result, the transmission / reception unit 51 of the communication management system 5 receives the image data and the image data ID.

Next, the transmission / reception unit 51 of the communication management system 5 transmits the image data sent from the video conference terminal 3 to the smartphone 9 (step S103). This transmission includes an image data ID for identifying the image data to be transmitted. As a result, the transmission / reception unit 51 of the smartphone 9 receives the image data and the image data ID.

Next, in the smartphone 9, the storage / reading unit 99 searches the image type management DB 9001 (see FIG. 14) using the image data ID received in step S103 as a search key, thereby performing the corresponding image type information (source). First name) is read (step S104). Then, when the image type information indicates that it is a special image (here, a spherical panoramic image) (Video_Theta), the image / sound processing unit 93 uses the image data received in step S103 to indicate that the spherical image is a spherical image. A panoramic image is created, and a predetermined area image is further created (step S105). In this case, the image / sound processing unit 93 synthesizes the icon 191 indicating that the image is a spherical panoramic image, which will be described later, into the predetermined area image based on the image type information indicating that the image is a special image (Video_Theta).

Next, the display control unit 94 displays a predetermined area image including the icon 191 on the display 917 of the smartphone 9. When the image type information indicates that the image is a general image (Video), the image / sound processing unit 93 does not create an all-sky panorama image from the image data received in step S103, and the display control unit 93. 94 displays a general image that does not include the icon 191.

Subsequently, the state of the video call will be described with reference to FIG. FIG. 22 is an image diagram showing a state of a video call. Of these, FIG. 22A shows a case where the photographing device 1a is not used, and FIG. 22B shows a case where the photographing device 1a is used.

First, as shown in FIG. 22A, when the camera 312 (see FIG. 10) provided in advance in the video conference terminal 3 is used without using the photographing device 1a, the angle of view is 125 degrees horizontally. Since it is 70 degrees vertically, the video conference terminal 3 must be placed at the edge of the desk on which each user A1 or the like is displayed. Therefore, each user A1 or the like must face the video conference terminal 3 side and speak. Further, since each user A1 or the like faces the video conference terminal 3, the display 4 is also placed on the side of the video conference terminal 3. As a result, the users A2 and A4 away from the video conference terminal 3 have to speak in a relatively loud voice because they are away from the microphone 314 (see FIG. 10), and it is difficult to see the display contents of the display 4.

On the other hand, as shown in FIG. 22B, when the photographing device 1a is used, two hemispherical images that are the basis of the spherical panoramic image can be obtained, so that a video conference can be obtained. The terminal 3 and the display 4 can be placed relatively in the center of the desk. As a result, since each user A1 or the like is close to the microphone 314, he / she can speak in a relatively low voice, and the display contents of the display 4 can be easily seen.

Subsequently, a display example of the display 917 at the base B will be described with reference to FIG. 23. FIG. 23 is a display example of the display at the base B. Of these, FIG. 23A shows the spherical panoramic image and the predetermined area image as they are without creating the spherical panoramic image and the predetermined area image from the image data sent from the video conference terminal 3 (shooting device 1a) and the shooting device 1b. It shows the case of displaying and the case of displaying the image data sent from the PC 7 (shooting device 8) as it is. FIG. 23 (b) shows a case where a spherical panoramic image is created and a predetermined area image is created from the image data sent from the video conference terminal 3 (shooting device 1a) and the shooting device 1b, and PC7 ( The case where the image data sent from the photographing apparatus 8) is displayed as it is is shown. The image of the base A is displayed in the display area on the upper left side of the display 917, the image of the base B (own base) is displayed in the display area on the upper right side, and the image of the base C is displayed in the display area on the lower left side. Is displayed. Further, in this example, since simultaneous video calls are being made at three bases, nothing is displayed in the display area on the lower right side.

When the image data sent from the photographing devices 1a and 1b capable of capturing the spherical panoramic image is displayed as it is, it is displayed as shown in FIG. 23 (a). This is because the A base on the upper left side and the B base on the upper right side (own base) are displayed as a front hemisphere image and a rear hemisphere image, respectively, as shown in FIGS. 3 (a) and 3 (b), respectively. Has been done.

On the other hand, the image / sound processing unit 93 uses the image data sent from the photographing devices 1a and 1b capable of obtaining the two hemispherical images that are the basis of the panoramic panoramic image. When an image is created and a predetermined area image is further created, a predetermined area image which is a plane image is displayed as shown in FIG. 23 (b). Since the base C is provided with a photographing device 8 for obtaining a general image, the general image is displayed in both FIGS. 23 (a) and 23 (b).

Further, an icon 191 indicating that the image is a spherical panoramic image is displayed at the upper left of each of the images of the base A and the base B (own base). The display position of the icon 191 may be anywhere, such as upper right, lower left, and lower right, instead of the upper left. Further, the type of the icon 191 is not limited to FIG. 23 (b). Further, instead of the icon 191 it may be a character such as "omnidirectional image", or it may be a combination of an icon and a character.

In addition, the user can change the predetermined area related to the predetermined area image in the same spherical panoramic image. That is, the users B1 and B2 touch the touch panel 921 of the smartphone 9 to move the finger, so that the reception unit 92 accepts the movement of the finger, and the display control unit 94 shifts or rotates the predetermined area image. Can be scaled, scaled down, or scaled up. As a result, as shown in FIG. 23 (b), even if only some users A1 and A2 of the base A are displayed by the initial setting (default), the predetermined area image is shifted. Users A4 and A3 can be displayed.

Further, a display example of the display at the base B will be described with reference to FIGS. 24 and 25. 24 and 25 are display examples of the display at the base B.

As shown in FIG. 23 (b), when only some users A1 and A2 of the base A are displayed by default, the user B1 who browses this image points to the predetermined area image. It is difficult to grasp whether it is a general image or a special image (here, a spherical panoramic image) unless you move it in contact with it. Therefore, when indicating that the image type information read out in step S104 is a special image, the display control unit 94 uses coordinates (x (rH), y (rV) including the angle of view in the three-dimensional virtual space. ), And the angle of view α of the angle of view α (angle)) is widened by a predetermined time (for example, 2 times) the initial setting (default) value, and as shown in FIG. 24 (a), the base B in the middle stage (). The predetermined area image displaying the own base) and the predetermined area image displaying the lower base A are expanded and displayed. In this case, since the image of the base A is a general image, the display control unit 94 does not widen the angle of view. As a result, the user C1 of the base B can grasp at a glance that the photographing device for obtaining a special image is used in the base A. When the angle of view α is widened, the original spherical panoramic image is curved, so that even a flat image looks curved.

Further, "switching" buttons b1 and b2 are displayed at the lower right of the display areas of the base B and the base A, respectively. For example, when the user B1 presses the "switch" button b1, the reception unit 92 accepts the display switching, and the display control unit 94 switches the size of the spherical panoramic image to the size of the general image and displays it. .. In this case, the display control unit 94 returns the angle of view α of the virtual camera IC to the initial set value and displays it. As a result, when the number of people is small as in the base B, it is easier to see when the angle of view α is restored rather than when the angle of view α is intentionally widened and the image is extremely curved. When the user B1 presses the "switch" button b1 shown in FIG. 24 (b), the display control unit 94 returns to the image shown in FIG. 24 (a).

Further, even when the number of people is large as in the base A, as shown in FIG. 25 (a), the display control unit 94 does not widen the angle of view α and keeps the initial setting (default) value. A plurality of predetermined area images (here, two) may be combined (joined) and displayed. In FIG. 25A, the first predetermined area image in which the users A1 and A2 are represented and the second predetermined area image in which the users A4 and A3 are represented are displayed side by side and combined. As a result, an image with less distortion can be displayed, so that the image becomes easier to see. In this case, when the "switch" button b2 is pressed, the display control unit 94 displays the original curved screen as shown in FIG. 24 (a). Note that, for example, the angle of view α related to each predetermined region image may not be expanded up to 2 times, but may be expanded up to 1.1 times before combining the predetermined region images. Further, the angle of view of the first predetermined area image may be increased by 0.9 times, and the angle of view of the second predetermined area image may be increased by 1.1 times.

Further, in the case of displaying the material in the video call, as shown in FIG. 25B, the display control unit 94 displays the image of each base around the area for displaying the material.

Although the processing of the display control unit 94 has been described in detail as described above, the display control units 34 and 74 can also perform the same processing.

<< Main effects of this embodiment >>
As described above, according to the present embodiment, the communication terminal such as the video conferencing terminal 3 creates an all-sky panoramic image based on the image data ID sent together with the image data and the corresponding image type information. Further, a predetermined area image can be created. As a result, as shown in FIG. 23A, it is possible to prevent the front hemisphere image and the rear hemisphere image from being displayed.

Further, in the case of a special image (here, an omnidirectional panoramic image), as shown in FIG. 24 (a), the display control unit 94 sets the angle of view of the virtual camera IC in the three-dimensional virtual space. Since α (see FIG. 7) is expanded to display a predetermined area image, the user at each base can grasp at a glance that the special image is displayed. As a result, as shown in FIG. 23 (b), although four users A1, A2, A3, and A4 are participating in the base A, two users A1, A2 It is possible to prevent the misunderstanding that only participants are participating. For example, when six users participate in the base A, as shown in FIG. 24A, a predetermined area image in which the angle of view α of the virtual camera IC is expanded is displayed. If so, users B1 and B2 can be seen at a glance that they are different from the image of base C, so even if only four users A1, A2, A3, and A4 are projected, the whole celestial sphere. Since it is a panoramic image, it can be easily recognized that there may be other users who are not projected.

1a Imaging device 1b Imaging device 3 Video conference terminal (an example of another communication terminal)
5 Communication management system 7 PC (an example of another communication terminal)
8 Shooting device 9 Smartphone (example of communication terminal)
91 Transmitter / receiver (example of transmission means, example of reception means)
94 Display control unit (an example of display control means)

Japanese Unexamined Patent Publication No. 2012-178135 Japanese Unexamined Patent Publication No. 2011-22307

Claims (10)

An image type management means for associating and managing image data identification information for identifying image data and image type information indicating an image type related to the image data, and an image type management means.
A receiving means for receiving image data transmitted from another communication terminal and image type information indicating the type of the image related to the image data, and
It has a display control means for changing and displaying the size of the image related to the received image data based on the received image type information.
The image type information indicates that it is an all-sky panorama image or a general image representing an image other than the all-sky panorama image, and the display control means displays a plurality of images including the all-sky panorama image on a display. When displaying and indicating that the image type information of the plurality of images is the panoramic panoramic image, a predetermined area image of a part of the panoramic panoramic image is displayed as an image in a three-dimensional virtual space. Communication characterized in that the angle of view of the coordinates including the corner is expanded by a predetermined time of the initial setting value and displayed, or a plurality of the predetermined area images are combined and displayed without expanding the angle of view. Terminal. The receiving means receives the image data and the image type information transmitted from the plurality of other communication terminals, respectively, and receives the image data and the image type information.
The communication terminal according to claim 1, wherein the display control means displays a plurality of images related to the received image data on the display. The predetermined area image is specified by the position coordinates including the angle of view of the virtual camera at the position of the viewpoint for viewing the spherical panoramic image represented as a three-dimensional sphere in the three-dimensional virtual space, and the display control means is used. The communication terminal according to claim 1 or 2 , wherein the size of the predetermined area image is displayed larger than the size of the general image by widening the initially set angle of view. The communication terminal according to claim 3 , wherein the display control means switches the size of the spherical panoramic image to the size of the general image and displays the image. When the size of the spherical panoramic image is switched to the size of the general image and displayed, the display control means is characterized in that the angle of view of the virtual camera is returned to the initial set value and displayed. Item 4. The communication terminal according to item 4. The predetermined area image is specified by the position coordinates including the angle of view of the virtual camera at the position of the viewpoint for viewing the panoramic image of the whole sky represented as a three-dimensional sphere in the three-dimensional virtual space, and the display control means is used. By combining a plurality of the predetermined area images specified by position coordinates including the angles of view of a plurality of different virtual cameras, the size of the predetermined area image is displayed larger than the size of the general image. The communication terminal according to claim 2 , which is characterized. The communication terminal according to claim 6 , wherein the angles of view of the plurality of different virtual cameras remain at the initial setting values. The display control means according to any one of claims 1 to 7 , wherein the display control means displays the material data in addition to the image data obtained by being photographed by the photographing apparatus as the image data. Communication terminal. It is a display method executed by a communication terminal.
The communication terminal has image data identification information for identifying image data and image type management means for associating and managing image type information indicating the type of image related to the image data.
The communication terminal is
A reception step for receiving image data transmitted from another communication terminal and image type information indicating the type of the image related to the image data, and
A display control step of changing and displaying the size of the image related to the received image data based on the received image type information is executed.
The image type information indicates that it is an all-sky panorama image or a general image representing an image other than the all-sky panorama image, and the display control step displays a plurality of images including the all-sky panorama image on the display. When displaying and indicating that the image type information of the plurality of images is the panoramic panoramic image, a predetermined area image of a part of the panoramic panoramic image is displayed as an image in a three-dimensional virtual space. A display characterized in that the angle of view of the coordinates including the corner is expanded by a predetermined time of the initial setting value and displayed, or a plurality of the predetermined area images are combined and displayed without expanding the angle of view. Method. A program for causing a computer to perform the method according to claim 9 .

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