Information processing device, information terminal, information processing method, and program

Abstract

To enable appropriate responses to users viewing videos. [Solution] The information processing device 1 includes a playback control unit 132 that synchronizes and plays multiple videos on an information terminal, and a reception unit 131 that receives a designation of a target video from a user on the information terminal, and the playback control unit, on the condition that the reception unit has received the designation of a target video, cancels the synchronized playback of the target video with other videos that are not among the multiple videos, and performs different playback control on the target video than on the other videos.

Description

[Technical Field]

[0001] The present invention relates to an information processing apparatus, an information terminal, an information processing method, and a program for playing back a plurality of moving images on an information terminal. [Background Art]

[0002] Patent Document 1 describes an invention in which a plurality of moving images temporally synchronized with each other are displayed on a display device, and controls such as pause, fast-forward, or rewind are synchronously performed on the plurality of moving images in accordance with an operation on the display device. [Prior Art Document] [Patent Document]

[0003] [Patent Document 1] Japanese Unexamined Patent Application Publication No. 2024-12165 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] Conventionally, in a distribution service for concerts or events in which a plurality of performers participate, an overall moving image and each performer's moving image are synchronously played back on an information terminal. When a user is viewing a plurality of synchronously played moving images, the user may want to pause only one moving image or return it to a past point in time without stopping the playback of all the moving images. However, since the invention described in Patent Document 1 performs controls such as pause, fast-forward, or rewind on all of the plurality of synchronously played moving images, it is not possible to independently control only one moving image.

[0005] Accordingly, the present invention has been made in view of these points, and an object of the present invention is to enable independent control of some moving images among a plurality of synchronously played moving images. [Means for Solving the Problem]

[0006] An information processing device according to a first aspect of the present invention includes a playback control unit that synchronizes and plays multiple video images on an information terminal, and a reception unit that receives a designation from a user on the information terminal for a target video image which is one of the multiple video images. The playback control unit, on the condition that the reception unit has received the designation for the target video image, cancels the synchronized playback of the target video image with other video images which are video images other than the target video image among the multiple video images, and performs playback control on the target video image which is different from that of the other video images.

[0007] The playback control unit may, on the condition that the receiving unit has received the designation of the target video, perform the playback control, which is stopping, rewinding, or fast-forwarding, on the target video without performing the playback control, which is stopping, rewinding, or fast-forwarding, on the other video.

[0008] While the playback control unit is performing the playback control on the target video, it may play the sound contained in the video without displaying the video on the information terminal.

[0009] The reception unit may receive a slide operation from the user on the information terminal to move a specified position on the target video, and the playback control unit may perform playback control, such as rewind playback or forward playback, on the target video while the slide operation is being performed.

[0010] The information processing device may further include a storage control unit that stores the frame of the target video at the time the slide operation is completed as a still image in the storage unit.

[0011] The reception unit may, after receiving a video selection operation from the user to specify the target video on the information terminal, receive a control selection operation from the user to specify the type of playback control, and the playback control unit may perform the type of playback control indicated by the control selection operation on the target video indicated by the video selection operation.

[0012] The playback control unit may, on the condition that the reception unit has received the designation of the target video, display on the information terminal the first target video on which the playback control is performed, and the second target video on which the playback is performed in synchronization with the other video.

[0013] The receiving unit may, while the playback control is being performed on the target video, receive a save operation from the user at the information terminal to specify a portion of the target video, and the information processing device may further include a storage control unit that stores the portion of the target video indicated by the save operation in a storage unit.

[0014] The playback control unit may, while playing back the plurality of videos in a synchronous manner, store the data of the plurality of videos for a predetermined period in the storage unit of the information terminal, and, on the condition that the reception unit has received the designation of the target video, perform the playback control on the target video using the data of the target video from among the data of the plurality of videos stored in the storage unit.

[0015] The receiving unit, upon receiving the designation of the target video, may transmit data of the target video within a predetermined range based on the timing at which the target video was designated to the information terminal, and the playback control unit, upon receiving the designation of the target video from the receiving unit, may perform the playback control on the target video using the data transmitted by the receiving unit to the information terminal.

[0016] A second aspect of the present invention is an information processing method which includes the steps of: a processor synchronously playing back a plurality of video images on an information terminal; receiving a designation from a user for a target video image, which is one of the plurality of video images, on the information terminal; a condition that the designation of the target video image has been received in the receiving step, canceling the synchronous playback of the target video image with other video images, which are video images other than the target video image, from the plurality of video images; and performing playback control on the target video image that is different from that of the other video images.

[0017] A program according to a third aspect of the present invention causes a processor to perform the following steps: to play a plurality of videos in a synchronized manner on an information terminal; to receive a designation from a user on the information terminal that the target video is one of the plurality of videos; to cancel the synchronized playback of the target video with other videos, which are videos other than the target video among the plurality of videos, on the condition that the designation of the target video has been received in the receiving step; and to perform playback control on the target video that is different from that of the other videos.

[0018] An information terminal according to a fourth aspect of the present invention includes a display unit, a playback control unit that synchronously plays a plurality of moving images on the display unit, and a reception unit that receives a designation from a user for a target moving image which is one of the plurality of moving images. The playback control unit, on the condition that the reception unit has received the designation of the target moving image, cancels the synchronous playback of the target moving image with other moving images which are moving images other than the target moving image among the plurality of moving images, and performs playback control on the target moving image that is different from that of the other moving images. [Effects of the Invention]

[0019] According to the present invention, it is possible to independently control some of the multiple videos that are played back in sync. [Brief explanation of the drawing]

[0020] [Figure 1] It is a schematic diagram of an information processing system. [Figure 2] It is a block diagram of the information processing system according to the first embodiment. [Figure 3] It is a schematic diagram for explaining image content. [Figure 4] It is a schematic diagram of a user terminal displaying a distribution screen including a plurality of moving images. [Figure 5] It is a schematic diagram of a user terminal displaying a distribution screen in a state where a plurality of moving images are set to an instruction mode. [Figure 6] It is a schematic diagram of a user terminal displaying a distribution screen in a state where playback control is performed on a target moving image. [Figure 7] It is a schematic diagram for explaining processing in which a storage control unit causes a storage unit to store a part of a target moving image. [Figure 8] It is a diagram showing a flowchart of an exemplary information processing method executed by the information processing system. [Figure 9] It is a block diagram of the information processing system according to the first embodiment. Mode for Carrying Out the Invention

[0021] <First Embodiment> [Outline of Information Processing System S] Figure 1 is a schematic diagram of the information processing system S according to the present embodiment. The information processing system S includes an information processing apparatus 1 and a user terminal 2. The information processing system S may also include other devices such as servers and terminals.

[0022] The information processing apparatus 1 is a computer that performs processing for playback control of moving images reproduced on the user terminal 2. The moving images are moving images that are live-broadcast or live-distributed, or pre-recorded moving images. The moving images are, for example, videos of concerts, musicals, stage plays, dramas, movies, television programs, press conferences, and the like. The moving images may also be two-dimensional or three-dimensional animation videos.

[0023] A video is, for example, image content featuring multiple characters. The characters appearing in a video are, for example, people, animals, or virtual characters shown in the video. A video may also include sound played along with the images. Playback controls for a video include, for example, stopping, rewinding (frame-by-frame, fast-forward, or slow-forward) and fast-forwarding (frame-by-frame, fast-forward, or slow-forward).

[0024] User terminal 2 is an information terminal used by the user. The user is a person who views videos and performs operations to control the playback of videos. User terminal 2 is, for example, a smartphone, a tablet, or a personal computer. User terminal 2 has an operation unit such as a touch panel or keyboard for receiving operations, and a display unit such as a liquid crystal display for displaying information. User terminal 2 is pre-associated with a user by setting identification information (Identifier: ID) to identify the user who will use the user terminal 2. User terminal 2 can communicate with information processing device 1 via a network.

[0025] The following describes the process performed by the information processing system S according to this embodiment. The information processing device 1 synchronizes and plays multiple video images on the user terminal 2. For example, the information processing device 1 transmits control information to the user terminal 2 to synchronize the playback timing of the multiple video images.

[0026] The information processing device 1 receives a designation from the user on the user terminal 2, which is a target video from among multiple video files. For example, the information processing device 1 receives an operation from the user on the user terminal 2 to select one of the multiple video files as the target video.

[0027] The information processing device 1, upon receiving a designation of a target video from the user, cancels the synchronized playback of the target video with other videos (among multiple videos) and applies different playback control to the target video than to the other videos. For example, while continuing to play other videos, the information processing device 1 transmits control information to the user terminal 2 to stop, rewind, or fast-forward the target video in response to user operations.

[0028] In this way, the information processing system S receives an operation from the user to designate one of several synchronized videos as the target video, unsynchronizes the multiple videos, and then performs playback control on the target video differently from the other videos. This allows the information processing system S to independently control some of the multiple synchronized videos.

[0029] [Configuration of Information Processing System S] Figure 2 is a block diagram of the information processing system S according to this embodiment. In Figure 2, the arrows indicate the main data flows, and there may be other data flows besides those shown in Figure 2. In Figure 2, each block represents a functional unit configuration, not a hardware (device) unit configuration. Therefore, the blocks shown in Figure 2 may be implemented in a single device, or they may be implemented separately in multiple devices. Data exchange between blocks may be performed via any means, such as a data bus, network, or portable storage medium.

[0030] The information processing device 1 includes a communication unit 11, a storage unit 12, and a control unit 13. The information processing device 1 may be configured by two or more physically separate devices connected by wired or wireless connections. Alternatively, the information processing device 1 may be configured as a cloud, which is a collection of computer resources.

[0031] The communication unit 11 has a communication controller for sending and receiving data to and from the user terminal 2 via the network. The communication unit 11 notifies the control unit 13 of the data it receives from the user terminal 2 via the network. The communication unit 11 also transmits data output from the control unit 13 to the user terminal 2 via the network.

[0032] The storage unit 12 is a storage medium including ROM (Read Only Memory), RAM (Random Access Memory), a hard disk drive, an SSD (Solid State Drive), etc. The storage unit 12 pre-stores programs to be executed by the control unit 13. The storage unit 12 may be located outside the information processing device 1, in which case data may be exchanged with the control unit 13 via a network.

[0033] The control unit 13 includes a reception unit 131, a playback control unit 132, and a storage control unit 133. The control unit 13 is a processor such as a CPU (Central Processing Unit), and functions as the reception unit 131, playback control unit 132, and storage control unit 133 by executing a program stored in the storage unit 12.

[0034] The following describes in detail the processes performed by the information processing system S. In the information processing device 1, the reception unit 131 receives a specification from the user of image content including multiple moving images to be played back. The user terminal 2 transmits information (title, representative image, etc.) to the information processing device 1 indicating one of the multiple image contents displayed on the display unit, which the user has selected using the operation unit. Based on the information transmitted by the user terminal 2, the reception unit 131 accepts the image content selected by the user as the image content to be played back.

[0035] Figure 3 is a schematic diagram illustrating the image content according to this embodiment. The image content includes a plurality of moving images that are played back in sync with each other. The plurality of moving images include, for example, an overall scene that captures or depicts a predetermined range, and one or more individual scenes that capture or depict a narrower range than the overall scene. Each point in time in the overall scene and each point in time in the individual scenes are pre-associated and are played back in sync with each other on the user terminal 2.

[0036] A whole scene is, for example, a video of a scene containing multiple characters. On the other hand, an individual scene is, for example, a video of a scene containing one of several characters. Each of the one or more individual scenes is pre-associated with the character included in that individual scene.

[0037] Individual scenes are generated, for example, by extracting a portion of the overall scene. In this case, individual scenes are generated, for example, by automatically extracting the regions containing each of the multiple characters by performing known image recognition processing on the overall scene. Alternatively, individual scenes may be generated by a human visually inspecting the overall scene and extracting the regions containing each of the multiple characters.

[0038] Furthermore, individual scenes may be generated by capturing each of multiple characters with a camera different from the camera that captured the overall scene. Also, individual scenes may be created as independent scenes rather than being part of the overall scene.

[0039] Multiple video clips included in the image content to be played back are pre-stored in the storage unit 12 or other storage unit of the information processing device 1. The information processing device 1 or other storage unit transmits the multiple video clips included in the image content to be played back to the user terminal 2.

[0040] The playback control unit 132 synchronizes the playback of multiple video images contained in the image content to be played back on the user terminal 2. For example, the playback control unit 132 transmits control information to the user terminal 2 to synchronize the playback timing of the multiple video images. The user terminal 2 synchronizes the playback of multiple video images received from the information processing device 1 or other storage units on the display unit according to the control information received from the information processing device 1.

[0041] User terminal 2 may play back a video after receiving the entire video of each of the multiple videos (i.e., the data from the start to the end of the video). Alternatively, user terminal 2 may sequentially receive parts of each of the multiple videos (e.g., 5 seconds of data, 10 seconds of data) and play back those parts of the video sequentially.

[0042] Figure 4 is a schematic diagram of a user terminal 2 displaying a streaming screen A containing multiple video clips. Streaming screen A includes a main video clip area A1 and a secondary video clip area A2. The main video clip area A1 is a display area larger in area than the secondary video clip area A2. When playback of multiple video clips is first started on the user terminal 2, for example, the video clip of the entire scene is played in the main video clip area A1, and the video clips of one or more individual scenes are played in the secondary video clip area A2.

[0043] The reception unit 131 receives a designation from the user at the user terminal 2 for a target video, which is one of the multiple videos, while the playback control unit 132 is playing multiple videos in synchronous order. The user terminal 2 transmits information to the information processing device 1 indicating a predetermined video selection operation (such as tapping or clicking) performed by the user using the operation unit to select one of the multiple videos displayed on the distribution screen A. Based on the information transmitted by the user terminal 2, the reception unit 131 accepts the video indicated by the video selection operation as the target video.

[0044] The target video is the video selected by the user from among multiple videos. If the user has not yet selected any of the multiple videos, the reception unit 131 treats a predetermined video (such as the overall scene) displayed in the main video area A1 as the target video selected by the user.

[0045] When the reception unit 131 receives a video selection operation at any point in time of multiple videos being played synchronously, the playback control unit 132 starts displaying the target video from among the multiple videos in the main video area A1 and displaying one or more videos other than the target video in the secondary video area A2 on the distribution screen A.

[0046] In the example shown in Figure 4, the first video displayed in the main video area A1 and the second video displayed in the secondary video area A2 in the upper part of Figure 4 are swapped as shown in the lower part of Figure 4, in response to the user's video selection operation. This allows the information processing system S to switch which video is displayed in the larger area of ​​any of the multiple videos at any given time, making it easier for the user to view the video they are interested in at any given time.

[0047] Multiple video files may be set to either a normal mode, which does not accept playback control instructions while they are being played back in sync, or an instruction mode, which accepts playback control instructions. In this case, the reception unit 131 receives a mode change operation from the user terminal 2 to transition to the instruction mode, which accepts playback control instructions for the target video file from the user.

[0048] Figure 5 is a schematic diagram of a user terminal 2 displaying a distribution screen A in which multiple video images are set to instruction mode. The user terminal 2 transmits information to the information processing device 1 indicating a predetermined mode change operation (such as holding a tap or click for a predetermined time) performed by the user using the control unit, at any location within the distribution screen A or at any location within the main video image area A1. The receiving unit 131 identifies the mode change operation performed by the user based on the information transmitted by the user terminal 2. In response to receiving the mode change operation, the receiving unit 131 switches the multiple video images from normal mode to instruction mode, or from instruction mode to normal mode.

[0049] The playback control unit 132 may display information on the distribution screen A indicating that multiple videos are set to instruction mode. The playback control unit 132 indicates that multiple videos are set to instruction mode by, for example, displaying a symbol (a triangle in the example of Figure 5) indicating the type of playback control currently in place on the video displayed in the main video area A1. This makes it easier for the user to recognize which mode the multiple videos are set to.

[0050] The reception unit 131, after receiving a video selection operation from the user terminal 2, receives a control selection operation from the user to specify the type of playback control. The user terminal 2 transmits information indicating the control selection operation performed by the user using the operation unit to the information processing device 1. The reception unit 131 identifies the control selection operation performed by the user based on the information transmitted by the user terminal 2.

[0051] The reception unit 131 identifies the type of playback control associated with a control specification operation in information (such as a table) that pre-associates control specification operations with types of playback control. The type of playback control is, for example, one of the following: stop, rewind playback, or forward playback.

[0052] The reception unit 131 identifies stop as the type of playback control when, for example, the control specification operation is a touch operation that specifies any position on the target video. The reception unit 131 identifies rewind playback as the type of playback control when, for example, the control specification operation is a slide operation that moves the specified position on the target video to the left. The reception unit 131 identifies forward playback as the type of playback control when, for example, the control specification operation is a slide operation that moves the specified position on the target video to the right. The reception unit 131 is not limited to the specific operations shown herein and may identify the type of playback control based on other operations.

[0053] The reception unit 131 accepts a control specification operation, for example, on the condition that multiple video images are set to instruction mode (such as having received a mode change operation to switch from normal mode to instruction mode). This prevents the information processing system S from unintentionally instructing the user to control playback of the target video image. Alternatively, the reception unit 131 may accept a control specification operation without requiring multiple video images to be set to instruction mode.

[0054] The playback control unit 132, on the condition that the reception unit 131 has received a video selection operation, cancels the synchronized playback of the target video and other videos among the multiple videos that are not the target video, and performs different playback control on the target video than on the other videos. On the other hand, the playback control unit 132 continues to synchronize the playback of multiple videos, on the condition that the reception unit 131 has not received a video selection operation.

[0055] Figure 6 is a schematic diagram of user terminal 2 displaying distribution screen A in a state where playback control is being performed on the target video. The playback control unit 132 performs the type of playback control indicated by the control specification operation on the target video in response to the reception unit 131 receiving the video specification operation and the control specification operation. For example, the playback control unit 132 performs the playback control, which is stop, rewind, or fast forward playback indicated by the control specification operation, on the target video without performing playback control, which is stop, rewind playback, or fast forward playback, on other videos.

[0056] If the reception unit 131 accepts a video selection operation but does not accept a control selection operation, it may continue to play multiple videos in sync. Alternatively, if the reception unit 131 accepts a video selection operation but does not accept a control selection operation, it may cancel the synchronous playback of multiple videos and perform a predetermined playback control (such as stopping) on ​​the target video.

[0057] The playback control unit 132 transmits, for example, first control information to cancel the synchronized playback of the other video and the target video, and second control information to perform different playback control on the target video than on the other video, to the user terminal 2. The user terminal 2 cancels the synchronized playback of the multiple video images according to the first control information received from the information processing device 1. The user terminal 2 performs different playback control on the target video than on the other video images according to the second control information received from the information processing device 1. As a result, the information processing system S can perform playback control on the target video in response to user operations while continuing to play the other video images among the multiple video images that are being played back in synchronization.

[0058] The playback control unit 132 stores cache data, which is the data of multiple videos for a predetermined period (e.g., 10 seconds including the playback time), in the user terminal 2's storage unit while multiple videos are being played back synchronously. The playback control unit 132, on the condition that the reception unit 131 has received a video selection operation, uses the cache data of the target video from the cache data of multiple videos stored in the user terminal 2's storage unit to perform playback control on the target video. As a result, the information processing system S can reuse the cache data from when multiple videos were played back synchronously to perform playback control on the target video.

[0059] Furthermore, the playback control unit 132 may perform playback control on the target video using the data transmitted to the user terminal 2 after the reception unit 131 has received the video selection operation. In this case, the reception unit 131, on the condition that it has received the video selection operation, transmits data of the target video for a predetermined range (e.g., 10 seconds including the playback time) based on the timing at which the target video was selected to the user terminal 2.

[0060] The playback control unit 132 performs playback control on the target video using the data transmitted by the reception unit 131 to the user terminal 2. As a result, the information processing system S can reliably perform playback control of the target video by transmitting data after receiving the video selection operation, without relying on cached data stored in the user terminal 2.

[0061] In the example shown in Figure 6, the playback control unit 132 performs playback control that is reverse playback for the target video while a leftward slide operation is being performed. On the other hand, the playback control unit 132 performs playback control that is forward playback for the target video while a rightward slide operation is being performed. This allows the user to easily specify the type of playback control for the target video.

[0062] The playback control unit 132 restarts the synchronized playback of multiple videos when the receiving unit 131 has received a predetermined restart operation (for example, a mode change operation to switch from instruction mode to normal mode) while the synchronized playback of other videos and the target video has been deactivated.

[0063] While the playback control unit 132 is performing different playback control on the target video than on other videos, it may play the sound contained in the other video on the user terminal 2 without displaying the other video. This allows the information processing system S to, for example, in image content where the sound played along with the image is important (such as a concert), allow the user to continue listening to only the sound of the other video while the user is giving playback control instructions for the target video.

[0064] The playback control unit 132 may, on the condition that the reception unit 131 has received a video selection operation, display on the user terminal 2 a first target video for which playback control is performed, and a second target video for which playback is performed in synchronization with the other video. In this case, the playback control unit 132 displays the two target videos independently on the user terminal 2, performs playback control on the first target video that is different from that of the other video, and plays the second target video in synchronization with the other video. This allows the information processing system S to play the target video in synchronization with the other video and to perform playback control on the target video that is different from that of the other video.

[0065] The memory control unit 133 may, in response to user operation, store a portion of the target video in the memory unit 12 or other memory unit when the synchronization playback of the other video and the target video has been disabled.

[0066] Figure 7 is a schematic diagram illustrating the process by which the memory control unit 133 stores a portion of the target video in the memory unit. The reception unit 131 receives a save operation from the user at the user terminal 2, specifying a portion of the target video, while the target video is being subjected to different playback control than other videos. The user terminal 2 transmits information indicating the save operation performed by the user using the operation unit to the information processing device 1. The reception unit 131 identifies the save operation performed by the user based on the information transmitted by the user terminal 2.

[0067] The save operation is an operation in which the user specifies a portion of the video to be saved. For example, the save operation is the end (cancellation) of a slide operation that moves a specified position on the video, at the point in the video that the portion to be saved is selected.

[0068] The memory control unit 133 determines a portion of the target video to be saved by the user based on the save operation, and stores the determined portion of the target video in the storage unit 12 or other storage unit. For example, the memory control unit 133 stores the frame of the target video at the time the slide operation indicated by the save operation is completed as a still image in the storage unit 12 or other storage unit. Alternatively, the memory control unit 133 may store a predetermined range (e.g., 5 seconds) of video within the target video that includes the time the slide operation indicated by the save operation is completed in the storage unit 12 or other storage unit.

[0069] This allows users to continue watching other videos while simultaneously pausing, rewinding, or fast-forwarding the target video, and easily specifying which parts of the target video to save.

[0070] [Information Processing Method Flowchart] Figure 8 is a flowchart showing an exemplary information processing method performed by the information processing system S according to this embodiment. In the information processing device 1, the reception unit 131 receives a designation from the user for image content including multiple moving images to be played back (S11). The playback control unit 132 synchronizes the playback of the multiple moving images included in the image content to be played back on the user terminal 2 (S12).

[0071] The reception unit 131 receives a designation from the user on the user terminal 2 for a target video, which is one of the multiple videos, while the playback control unit 132 is playing multiple videos in synchronous order (S13). In response to the reception unit 131 receiving the video designation operation, the playback control unit 132 displays the target video in a relatively large area on the user terminal 2, and displays one or more of the other videos in a relatively small area on the user terminal 2.

[0072] The reception unit 131 receives a mode change operation from the user terminal 2 to transition to an instruction mode in which it receives instructions from the user to control the playback of the target video (S14). In response to receiving the mode change operation, the reception unit 131 switches multiple videos from normal mode to instruction mode.

[0073] If multiple video images are not set to instruction mode (NO in S15), the information processing device 1 returns to step S13 and repeats the process. If multiple video images are set to instruction mode (YES in S15), the reception unit 131 receives a control specification operation from the user terminal 2 to specify the type of playback control (S16).

[0074] If the reception unit 131 has not received a control specification operation (NO in S17), the information processing device 1 returns to step S13 and repeats the process. If the reception unit 131 has received a control specification operation (YES in S17), the playback control unit 132 cancels the synchronized playback of the target video with other videos, which are among the multiple videos other than the target video (S18). The playback control unit 132 performs a different playback control on the target video than on the other videos, for example, a playback control of the type indicated by the control specification operation (S19).

[0075] While the reception unit 131 is performing different playback control on the target video than on other videos, the user terminal 2 accepts a save operation from the user specifying a portion of the target video (S20). If the reception unit 131 has not accepted the save operation (NO in S21), the information processing device 1 returns to step S13 and repeats the process.

[0076] If the reception unit 131 accepts a save operation (YES in S21), the memory control unit 133 determines a portion of the target video image to be saved by the user based on the save operation, and stores the determined portion of the target video image in the memory unit 12 or other memory unit (S22).

[0077] If the predetermined termination conditions (such as the predetermined termination operation being performed) are not met (NO in S23), the information processing device 1 returns to step S13 and repeats the process. If the predetermined termination conditions are met (YES in S23), the information processing device 1 terminates the process.

[0078] [Effects of the Embodiment] According to the information processing system S of this embodiment, the information processing device 1 receives an operation from the user to designate one of a plurality of synchronized video images as the target video image, unsynchronizes the plurality of video images, and then performs playback control on the target video image differently from the other video images. As a result, the information processing system S can independently control some of the video images among the plurality of synchronized video images.

[0079] <Second Embodiment> In the information processing system S according to the first embodiment, the information processing device 1 performs processing related to the playback and saving of moving images, whereas in the information processing system S according to this embodiment, the user terminal 2 performs processing related to the playback and saving of moving images. The following mainly describes the parts that differ in this embodiment from the first embodiment.

[0080] Figure 9 is a block diagram of the information processing system S according to this embodiment. The user terminal 2 includes a communication unit 21, a storage unit 22, a control unit 23, an operation unit 24, and a display unit 25. The configuration of the communication unit 21 and the storage unit 22 is the same as that of the communication unit 11 and the storage unit 12 of the information processing device 1.

[0081] The operation unit 24 is, for example, a touch panel or keyboard for receiving user input. The display unit 25 is, for example, a liquid crystal display for displaying information to the user.

[0082] The control unit 23 is, for example, a processor such as a CPU, and by executing the program stored in the storage unit 22, it functions as the receiving unit 131, playback control unit 132, and storage control unit 133 in the first embodiment.

[0083] In the user terminal 2, the reception unit 131 receives video selection operations, mode change operations, control selection operations, and save operations from the user using the operation unit 24. The playback control unit 132 synchronously plays back multiple videos received from the information processing device 1 or multiple videos pre-stored in the storage unit 22 on the display unit 25. Furthermore, the playback control unit 132, on the condition that the reception unit 131 has received a video selection operation, cancels the synchronous playback of other videos (videos other than the target video) with the target video, and performs different playback control on the target video than on the other videos (for example, playback control of the type indicated by the control selection operation).

[0084] The memory control unit 133, on the condition that the reception unit 131 has accepted the save operation, stores a portion of the target video in the memory unit 22 or another memory unit, while the synchronized playback of the other video and the target video is disabled.

[0085] According to the information processing system S of this embodiment, the same effects as in the first embodiment can be obtained, and since the user terminal 2 performs processing related to the playback and saving of moving images, the response to user operations can be improved.

[0086] Furthermore, this invention will make it possible to contribute to Goal 9 of the United Nations-led Sustainable Development Goals (SDGs), "Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation."

[0087] Although the present invention has been described above using embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of its gist. For example, all or part of the apparatus can be configured by functionally or physically distributing and integrating in any unit. Furthermore, new embodiments resulting from any combination of multiple embodiments are also included in the embodiments of the present invention. The effects of the new embodiments resulting from the combinations are combined with the effects of the original embodiments. [Explanation of symbols]

[0088] S Information Processing System 1. Information Processing Device 2 User terminals 11, 21 Communications Department 12, 22 Storage section 13, 23 Control Unit 131 Reception Department 132 Regeneration Control Unit 133 Memory Control Unit 24 Control section 25 Display section

Claims

1. A playback control unit that synchronizes and plays multiple video images on an information terminal, The information terminal includes a reception unit that receives a user's designation of a target video, which is one of the multiple video images; It has, The playback control unit, on the condition that the reception unit has received the designation of the target video, cancels the synchronized playback of the target video with other video images among the plurality of video images that are not the target video, and performs playback control on the target video that is different from that of the other video images. Information processing device.

2. The playback control unit, on the condition that the reception unit has received the designation of the target video, performs the playback control, which is stop, rewind, or fast forward, on the target video without performing the playback control, which is stop, rewind, or fast forward, on the other video. The information processing apparatus according to claim 1.

3. While the playback control unit is performing the playback control on the target video, it plays the sound contained in the video without displaying the video on the information terminal. The information processing apparatus according to claim 1.

4. The reception unit receives a slide operation from the user to move a specified position on the target video image at the information terminal. The playback control unit performs playback control, which is either rewind playback or forward playback, on the target video image while the slide operation is being performed. The information processing apparatus according to any one of claims 1 to 3.

5. The system further includes a storage control unit that stores the frame of the target video at the time the slide operation is completed as a still image in the storage unit. The information processing apparatus according to claim 4.

6. The reception unit, after receiving a video selection operation from the user to specify the target video on the information terminal, then receives a control selection operation from the user to specify the type of playback control, The playback control unit performs the playback control of the type indicated by the control specification operation on the target video indicated by the video specification operation. The information processing apparatus according to any one of claims 1 to 3.

7. The playback control unit, on the condition that the reception unit has received the designation of the target video, displays on the information terminal the first target video on which the playback control is performed and the second target video on which the playback control is performed in synchronization with the other video. The information processing apparatus according to any one of claims 1 to 3.

8. The reception unit, while the playback control is being performed on the target video, receives a save operation from the user specifying a portion of the target video on the information terminal. The system further includes a storage control unit that causes a portion of the target video image indicated by the aforementioned saving operation to be stored in the storage unit. The information processing apparatus according to any one of claims 1 to 3.

9. The playback control unit, while playing back the plurality of video images in a synchronized manner, stores the data of the plurality of video images for a predetermined period in the storage unit of the information terminal. The playback control unit, on the condition that the receiving unit has received the designation of the target video, performs the playback control on the target video using the data of the target video from among the data of the plurality of video videos stored in the storage unit. The information processing apparatus according to any one of claims 1 to 3.

10. The receiving unit, upon receiving the designation of the target video, transmits data of the target video within a predetermined range based on the timing at which the target video was designated to the information terminal. The playback control unit performs the playback control on the target video using the data transmitted by the reception unit to the information terminal, provided that the reception unit has received the designation of the target video. The information processing apparatus according to any one of claims 1 to 3.

11. The processor executes The steps include: playing multiple video images in sync on an information terminal, The information terminal receives a step of receiving a designation from the user for a target video, which is one of the multiple video images; In the aforementioned receiving step, on the condition that the designation of the target video has been accepted, the step of canceling the synchronized playback of other video images, which are video images other than the target video image among the plurality of video images, and the target video image, The steps include performing different playback control on the target video than on the other video, An information processing method having the following characteristics.

12. In the processor, The steps include: playing multiple video images in sync on an information terminal, The information terminal receives a step of receiving a designation from the user for a target video, which is one of the multiple video images; In the aforementioned receiving step, on the condition that the designation of the target video has been accepted, the step of canceling the synchronized playback of other video images, which are video images other than the target video image among the plurality of video images, and the target video image, The steps include performing different playback control on the target video than on the other video, A program that executes something.

13. Display unit and The display unit includes a playback control unit that synchronizes and plays back multiple moving images, A receiving unit that receives a designation from the user for a target video, which is one of the multiple video images mentioned above, It has, The playback control unit, on the condition that the reception unit has received the designation of the target video, cancels the synchronized playback of the target video with other video images among the plurality of video images that are not the target video, and performs playback control on the target video that is different from that of the other video images. Information terminal.

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