JP5406660B2 - Video receiving apparatus and control method thereof - Google Patents

Description

  The present invention relates to a camera angle selection method in a video receiving apparatus capable of receiving multi-angle broadcasting and a control method thereof.

  In digital television broadcasting, video signals, audio signals, program data, and the like constituting a program are multiplexed and distributed by the MPEG2_TS (Moving Picture Experts Group 2 Transport Stream) method. The program data includes data such as program title information, start time, and duration, which is called an event information table (Event Information Table: EIT). A television receiver compatible with digital television broadcasting can present detailed program information to a user using program attribute information such as EIT.

  In recent years, multi-view television (MVTV) broadcasting has been started in digital television broadcasting. In MVTV, a plurality of videos and sounds are distributed in one program, and the user can switch to a desired video from a plurality of videos and view it. For example, in a golf broadcast, a component group composed of three types of video and audio of main / sub 1 / sub 2 is distributed, and the main video and audio are presented at the start of viewing, but the user can use other components. It is possible to switch to a group. The television receiver identifies that the broadcast program is MVTV by the component_group_type descriptor described in the received EIT, and notifies the user that the display can be switched.

  On the other hand, multi-angle broadcasting has been started by IP broadcasting using broadband technology. Multi-angle broadcasting simultaneously distributes videos taken at different camera angles using a plurality of cameras, apart from normal broadcasting, in programs such as sports broadcasts and concert broadcasts. In normal broadcasting, videos taken at different camera angles are switched and distributed at a broadcasting station. In multi-angle broadcasting, a user can receive and watch videos distributed from a server on a network. The user can select a camera to view from the displayed camera layout on the GUI screen or the like, and view a multi-angle broadcast video. Patent Document 1 discloses a technique for automatically switching a camera to be viewed by generating an automatic switching table, instead of manually selecting and switching a camera to be viewed in multi-angle broadcasting.

JP 2002-314960 A

  However, in the switching method of the viewing camera in the multi-angle broadcasting of Patent Document 1, the viewing camera is automatically switched according to the automatic switching table, and thus the user cannot always view at the desired camera angle. It was. In addition, in order to select a camera to be viewed in conventional multi-angle broadcasting, the user cannot view the desired camera angle until selecting the camera to be viewed on the GUI screen, and can view a video of the desired camera angle. The operation up to was troublesome.

  The present invention has been made in view of the above-described problems, and is desired by notifying that it is possible to display a multi-angle broadcast video corresponding to a camera angle that is viewed with a normal broadcast video. The purpose is to facilitate the operation of selecting the camera angle.

In order to achieve the above-described object, the video receiving apparatus of the present invention has the following configuration.
A first receiving means capable of receiving video signals video signals captured by a plurality of imaging devices progresses while sequentially switching, and output means for outputting to the display unit of the first video signal being received by the receiving means and identifying means for identifying a first imaging device that captured the frame of the first video signal displayed on the display unit, the first video signal of a different video signal, a first imaging device It is determined by the determination means that the receiving means can further receive the second video signal that proceeds only by the video signal photographed by the determination means, and the determination means determines that the second video signal can be received. A notification unit that notifies that the second video signal can be received, and that does not perform notification when the determination unit determines that the second video signal cannot be received. And

  With such a configuration, according to the present invention, a selection operation of a desired camera angle is performed by notifying that a multi-angle broadcast video corresponding to a camera angle viewed in a normal broadcast video can be displayed. Making it easy to do.

The block diagram which showed the function structure of the set top box which concerns on embodiment. 5 is a flowchart of program attribute information update processing according to the first and second embodiments. The flowchart of the camera information comparison process of embodiment. 5 is a flowchart of video switching processing according to the first embodiment. The flowchart of the video switching process of a modification. 10 is a flowchart of camera information list update processing according to the second embodiment. 10 is a flowchart of video switching processing according to the second embodiment. The figure for demonstrating the example of a screen display in embodiment. FIG. 10 is a diagram for explaining a camera information list according to the second embodiment.

(Embodiment 1)
Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings. The embodiment described below is a set capable of receiving a normal broadcast video distributed by a terrestrial broadcast signal and a multi-angle broadcast video distributed by an IP broadcast as an example of a video reception device. An example in which the present invention is applied to a top box will be described. However, the present invention can be applied to any device capable of receiving multi-angle broadcasting.

  In the present invention, multi-angle broadcasting will be described on the assumption that videos shot by each of a plurality of shooting devices (television cameras) that shot frames of a video transmitted by normal broadcasting are transmitted as multi-angle broadcasting. That is, a video transmitted by multi-angle broadcasting is composed of a series of frames shot by each of a plurality of imaging devices, and a video transmitted by normal broadcasting is a mixture of frames shot by a plurality of imaging devices. It has a configuration. In the present embodiment, for the sake of simplicity, a description will be given assuming that a plurality of videos photographed by a plurality of television cameras as multi-angle broadcasting are transmitted simultaneously. However, the implementation of multi-angle broadcasting is not limited to this, and the number of videos transmitted simultaneously may be any number of one or more. In the present embodiment, a description will be given on the assumption that a television camera that captures a video transmitted as multi-angle broadcasting does not change throughout a program in one program. However, in the implementation of multi-angle broadcasting, the video of the television camera transmitted by multi-angle broadcasting may be switched depending on the scene.

FIG. 1 is a block diagram showing a functional configuration of a set top box according to an embodiment of the present invention.
The tuner 101 receives the broadcast signal 200, separates a desired channel signal from the broadcast signal 200 in accordance with, for example, reception channel setting information stored in the storage memory 108, and a normal broadcast video signal of the desired channel. Get program attribute information. The tuner 101 then outputs the obtained normal broadcast video signal of the desired channel to the main decoder 102. The normal broadcast program attribute information is information included in the normal broadcast video signal. For example, in addition to the information related to the program such as the name of the normal broadcast program and the program description, information for identifying the camera that shot the normal broadcast video signal. (Broadcast scene camera information). Broadcast scene camera information is information for identifying a camera that has captured a frame such as an ID number assigned to each TV camera, for example, each frame constituting a video transmitted by a video signal, and changes in units of frames. Is. Further, the program information of the normal broadcast includes information on whether or not the multi-angle broadcast can be received (the presence or absence of the multi-angle broadcast), that is, information on whether the normal broadcast is compatible with the multi-angle broadcast. When the normal broadcast is compatible with the multi-angle broadcast, the program attribute information of the normal broadcast further includes information (URI) for specifying a server that distributes the video signal of the multi-angle broadcast of a desired channel in the IP broadcast. ing.

  The network receiving unit 105 is an interface for connecting the set top box 100 to the network 300 provided in the set top box 100. When the normal broadcast is compatible with the multi-angle broadcast, the network receiving unit 105 connects to the server 400 that distributes the video signal via the network 300 according to the information of the server that distributes the video signal of the multi-angle broadcast. Then, the network receiving unit 105 receives a video signal and program attribute information of multi-angle broadcasting of a desired channel from the server 400 that distributes the video signal, and outputs the received signal to the main decoder 102. The program attribute information of the multi-angle broadcast is information included in the video signal of the multi-angle broadcast, and has information on a normal broadcast program that supports the multi-angle broadcast, for example. Moreover, the program attribute information of multi-angle broadcasting has information (multi-angle broadcasting camera information) for specifying a camera that has shot a video transmitted by multi-angle broadcasting.

  The main decoder 102 analyzes the input video signal, applies a decoding process to the encoded video signal, and separates the video data, audio data, and program attribute information. The main decoder 102 applies decoding processing to the encoded video data and audio data, and outputs the obtained video data and audio data to the video output unit 104 and the audio output unit 103, respectively. Further, the main decoder 102 outputs the program attribute information obtained from the video signal to the storage memory 108 and stores it as program attribute information of the currently received normal broadcast or multi-angle broadcast.

  The audio output unit 103 is, for example, a signal amplification circuit, and applies an amplifier adjustment process to the input audio data and outputs the applied audio data to the speaker 700 connected to the set top box 100. The video output unit 104 outputs the input video data to the display monitor 600 connected to the set top box 100.

  The infrared light receiving unit 106 is a circuit that receives an infrared signal input to the set top box 100. For example, when a user operates the remote controller 500, the infrared light receiver 106 receives an infrared signal transmitted by the remote controller 500 in response to the user's operation. . The infrared light receiving unit 106 analyzes, for example, the received infrared signal and transmits information identifying the operation performed by the remote controller 500 to the CPU 107. Information identifying the operation performed by the remote controller 500 includes, for example, information such as a power-off request and a reception channel change request. In the present embodiment, the remote controller 500 is described as an example of an input interface for inputting an operation from the user to the set top box 100. However, the embodiment of the present invention is not limited to this. For example, when an operation on various buttons included in the set-top box 100 is used as an input, a circuit for detecting button input is provided separately from the infrared light receiving unit 106, and the contents input to the CPU 107 may be transmitted.

  The CPU 107 controls the operation of each block by reading the operation program of each block (circuit) of the set-top box 100 stored in the storage memory 108, for example, and expanding and executing it in a RAM (not shown). Further, when the CPU 107 receives information identifying the operation performed by the remote controller 500 from the infrared light receiving unit 106, the CPU 107 updates the information stored in the storage memory 108 according to the received information. For example, when the user performs an operation of changing the reception channel on the remote controller 500, the CPU 107 receives a reception channel change request and information on the channel to be changed from the infrared light receiving unit 106. Then, the CPU 107 updates the reception channel setting information stored in the storage memory 108 to the information on the channel to be changed received from the infrared light receiving unit 106. The storage memory 108 is a rewritable nonvolatile memory and stores information such as parameters necessary for the operation of each block of the set top box 100 in addition to the operation program of each block of the set top box 100. The parameter information necessary for the operation of each block of the set-top box 100 includes, for example, reception channel setting information, display information setting information of video data output to the display monitor 600, and the like.

  The camera information analysis unit 109 is broadcast information that identifies the TV camera that has captured the video frame from the program attribute information of the normal broadcast that is currently received and separated from the main decoder 102 and stored in the storage memory 108. Get scene camera information. If the multi-angle broadcast can be received, the camera information analysis unit 109 acquires the camera information of the multi-angle broadcast from the currently received multi-angle broadcast program attribute information stored in the storage memory 108. . That is, the camera information analysis unit 109 acquires multi-angle broadcast camera information that is information that identifies a television camera that has captured each of a plurality of videos that can be received by multi-angle broadcasting. In addition, the camera information analysis unit 109 compares the broadcast scene camera information and the multi-angle broadcast camera information, and determines whether there is information specifying the same television camera. That is, it is determined whether or not the video signal of the television camera that captured the frame received by the normal broadcast is included in the video signal distributed by the multi-angle broadcast.

  The image composition unit 110 is a circuit that performs composition processing in accordance with a display form when a plurality of pieces of video data are displayed on the display monitor 600 on a multi-screen or when a GUI is added to the video data. When multi-screen display is performed on the display monitor 600, for example, a plurality of video data received by the network receiving unit 105 and decoded by the main decoder 102 are stored in the storage memory 108 by the image synthesis unit 110. Composition is performed according to display mode setting information. In addition, when displaying the video data with a GUI, the image composition unit 110 combines the video data output from the main decoder 102 and the GUI display image stored in the storage memory 108. The image synthesis unit 110 outputs the synthesized video data obtained by the synthesis to the video output unit 104 and transmits it to the display monitor 600.

(Program attribute information update process)
The program attribute information update processing of the set top box of the present embodiment having such a configuration will be further described with reference to the flowchart of FIG.
In step S <b> 201, the CPU 107 separates the video signal of the channel for receiving the normal broadcast from the broadcast signal 200 received by the tuner 101 according to the information of the reception channel setting stored in the storage memory 108, and outputs the video signal to the main decoder 102. The CPU 107 causes the main decoder 102 to apply a decoding process to the normal broadcast video signal input from the tuner 101, separates the video data, audio data, and program attribute information, and obtains the obtained normal broadcast program attribute information. Store in the storage memory 108.

In S202, CPU 107 are stored in the storage memory 108, the information in the presence or absence of multi-angle broadcast program attribute information of the normal broadcast with the video signal in channel being received in a normal broadcasting multi-angle broadcast Judge whether or not it is distributed. When the video signal is distributed by multi-angle broadcasting, the CPU 107 moves the process to S203, and when the video signal is not distributed by multi-angle broadcasting, the CPU 107 returns the process to S201.

  In step S <b> 203, the CPU 107 sends the multi-angle broadcast video signal of the desired channel to the network reception unit 105 according to the information specifying the multi-angle broadcast distribution server included in the normal broadcast program attribute information stored in the storage memory 108. Receive. Specifically, the CPU 107 connects the network receiving unit 105 to the server 400 that distributes the multi-angle broadcast via the network 300, receives the video signal of the multi-angle broadcast from the server 400, and outputs it to the main decoder 102.

  In step S204, the CPU 107 applies a decoding process to the video signal of the multi-angle broadcast input to the main decoder 102, separates the video data, the audio data, and the program attribute information, and stores the program attribute information of the multi-angle broadcast in the storage memory. Store in 108.

  Note that this program attribute information update processing is repeatedly executed while the power of the set top box 100 is ON, and the program attribute information of normal broadcast and multi-angle broadcast stored in the storage memory 108 is always the latest. Information is updated.

(Camera information comparison process)
Next, the camera information comparison process of the set top box of this embodiment will be described with reference to the flowchart of FIG. Note that this camera information comparison process is a process performed when a channel received by normal broadcasting is compatible with multi-angle broadcasting.

  In step S <b> 301, the CPU 107 outputs the broadcast scene camera information included in the program attribute information of the normal broadcast stored in the storage memory 108 to the camera information analysis unit 109. Further, the CPU 107 outputs the multi-angle broadcast camera information included in the program attribute information of the multi-angle broadcast stored in the storage memory 108 to the camera information analysis unit 109 (S302).

  In step S303, the CPU 107 causes the camera information analysis unit 109 to compare the broadcast scene camera information and the multi-angle broadcast camera information, and determines whether there is camera information that identifies the same television camera. If the same camera information exists in the broadcast scene camera information and the multi-angle broadcast camera information, the CPU 107 moves the process to S304 and stores information indicating that the camera information matches in the storage memory 108. If the same camera information does not exist in the broadcast scene camera information and the multi-angle broadcast camera information, the CPU 107 moves the process to S305 and stores information indicating that the camera information does not match in the storage memory 108.

(Video switching process)
Furthermore, the video switching process of the set top box of the present embodiment will be described with reference to the flowchart of FIG. Note that this video switching process is also performed when the channel received by the normal broadcast is compatible with the multi-angle broadcast, similarly to the camera information comparison process described above.

  In step S401, the CPU 107 performs the camera information comparison process described above. In step S402, the CPU 107 refers to the camera information (normal scene camera information and multi-angle broadcast camera information) of the normal broadcast and multi-angle broadcast stored in the storage memory 108, and the camera information of the normal broadcast and multi-angle broadcast matches. Determine whether or not. That is, it is determined whether the same information as the normal scene camera information exists among the information specifying the plurality of television cameras included in the multi-angle broadcast camera information. If the camera information of the normal broadcast and the multi-angle broadcast match, the CPU 107 moves the process to S403.

  In step S403, the CPU 107 confirms that the image data of the normal broadcast and the same camera angle as the frame currently received in the normal broadcast can be registered in the image composition unit 110 as a camera angle for viewing in the multi-angle broadcast. Is combined with the display to notify. Specifically, the CPU 107 stores a GUI stored in the storage memory 108 for notifying the image composition unit 110 that the camera angle of the frame currently received in the normal broadcast can be registered as the viewing camera angle. Output. Then, the CPU 107 causes the image composition unit 110 to synthesize the normal broadcast video data and the GUI, and outputs the obtained composite video data to the video output unit 104. In this embodiment, the fact that the camera angle of the frame currently received in the normal broadcast can be registered as the viewing camera angle means that the display is switched as follows when the scene is switched next in the normal broadcast. It means that it is possible. Specifically, when the broadcast scene camera information is changed, the video data of the current camera angle that can be received by the multi-angle broadcast is displayed together with the video data of the normal broadcast as a multi-screen display.

  Here, FIG. 8A shows a GUI display example for notifying that the viewing camera angle can be registered. A screen 800 is a whole image of a frame of video data output to the display monitor 600. For example, a GUI 801 for notifying that registration is possible as a viewing camera angle is displayed in the upper right corner of the screen 800 or the like. Thereby, it is possible to notify the viewing user that the camera angle of the frame currently received in the normal broadcast is also distributed in the multi-angle broadcast and can be registered as the viewing camera angle.

  In step S <b> 404, the CPU 107 determines whether or not the user inputs from the remote controller 500 the infrared light receiving unit 106 to register the camera angle of the frame of the video data currently received through the normal broadcast as the viewing camera angle. If there is no input to register as the viewing camera angle, the CPU 107 returns the process to S401, and applies the camera information comparison process to the newly received video signal. If an input for registration as a viewing camera angle is made in S404, the CPU 107 moves the process to S405.

  If the normal scene camera information and the multi-angle broadcast camera information are different in S402, the CPU 107 moves the process to S409. In step S409, if the CPU 107 has combined the normal broadcast video data with the GUI for notifying that the viewing angle can be registered to the image composition unit 110, the process proceeds to step S410, and the GUI display is stopped. Then, the process returns to S401.

  In step S <b> 405, the CPU 107 stores the camera angle of the frame currently received in the normal broadcast, that is, the broadcast scene camera information, as the camera angle of the multi-angle broadcast to be displayed in the storage memory 108. Then, the CPU 107 outputs to the display monitor 600 a display for notifying the user that the same camera angle as the frame currently received in the normal broadcast is registered as the camera angle for viewing in the multi-angle broadcast (S406). Specifically, the CPU 107 outputs to the image composition unit 110 a GUI that is stored in the storage memory 108 and notifies that the camera angle for viewing through multi-angle broadcasting has been registered. The CPU 107 synthesizes the image data of the normal broadcast with the image composition unit 110 and the GUI for notifying that the camera angle to be viewed through the multi-angle broadcast has been registered, and outputs it to the image output unit 104.

  FIG. 8B is an example of a GUI display for notifying that a camera angle to be viewed in multi-angle broadcasting has been registered. The GUI 802 for notifying that the user has registered is displayed to prompt the user to confirm the notification, and the display may be terminated upon receipt of the confirmation input, or may be terminated after being displayed for a predetermined time. . In addition, the GUI 801 that notifies that the viewing camera angle can be registered may end the display at the same time as the GUI 802 that notifies that it is registered, for example.

  In step S407, the CPU 107 compares the broadcast scene camera information included in the program attribute information sequentially received in the normal broadcast with the camera angle information of the multi-angle broadcast to be displayed stored in the storage memory 108 in step S405. Judging. The CPU 107 repeats the process of S407 until the broadcast scene camera information and the information of the camera angle of the multi-angle broadcast to be displayed stored in the storage memory 108 are different. That is, in the video data received by the normal broadcast, the process is waited in S407 until the camera angle changes.

  When the broadcast scene camera information and the camera angle information of the multi-angle broadcast to be displayed stored in the storage memory 108 are different, the CPU 107 moves the process to S408 and switches the video output from the video output unit 104. In other words, the CPU 107 displays the multi-angle broadcast video data and the multi-angle broadcast camera angle video data (angle video) stored in the storage memory 108 among the multi-angle broadcast video data. Switch the output to Specifically, the CPU 107 causes the image composition unit 110 to synthesize the normal broadcast video data and the angle video data, for example, according to the display form information stored in the display monitor 600 or the storage memory 108. Then, the CPU 107 transmits the obtained composite video data to the video output unit 104 and causes the display monitor 600 to output it.

  FIG. 8C is a display example when normal broadcast video data and angle video data are displayed on a multi-screen, and an angle video 803 is displayed in the screen 800. In the display example, normal broadcast video data and angle video data are displayed in a picture-in-picture display form, but the present invention is not limited to this, and is applied to various multi-screen display forms. Is possible.

In addition, although it demonstrated as what switches the display of video data to a multi-screen display in S408, when the distribution of the video signal of the camera angle to display is stopped by the multi-angle broadcast before reaching the step of S408. , Bayoi be processed as follows. For example, the CPU 107 can cope with the multi-angle broadcast by forcibly moving the process to S401 when the distribution of the video signal of the camera angle to be displayed is stopped.

  Although detailed description is omitted, when switching to the multi-screen display, the main video switching process is not performed, and for example, when the display is switched again to the single screen display by the input from the remote controller 500, the main video is displayed. A switching process may be performed. In addition, when the distribution of the video signal of the camera angle to be displayed is lost in the multi-angle broadcasting as described above during the multi-screen display, the display may be forcibly switched to the single screen display.

  As described above, the video receiving apparatus according to the present embodiment can receive a video signal of a multi-angle broadcast via a network when a video received as a broadcast signal is compatible with a multi-angle broadcast. The video reception device acquires information specifying the imaging device that has captured the frame of the video (first video) received by the broadcast signal from the broadcast signal. Further, for each of a plurality of angle videos (second videos) distributed by the receivable multi-angle broadcast, the video receiver acquires information for identifying the imaging device that has shot the angle video, and has received the broadcast signal. The information is compared with information specifying the image capturing device that has captured the image. When there is the same information for specifying the compared imaging devices, the video reception device notifies that the video of the imaging device that has captured the video received by the broadcast signal also exists in the angle video.

  Further, when an angle video display request for displaying an angle video is input by the user, the video receiving device stores information for specifying a shooting device that has shot the video received by the broadcast signal. Then, when the information of the imaging device that captured the video received by the broadcast signal is different from the stored information of the imaging device, the video received by the broadcast signal and the angle video captured by the stored imaging device are combined. Output to the display device.

  As a result, when the video of the same angle as the video received by the broadcast signal can be received by multi-angle broadcasting, the user can check the camera angle in the received video and display the angle video of the desired camera angle. Is possible.

(Modification)
In the first embodiment, the case where the video signal of the multi-angle broadcast is distributed by the IP broadcast has been described. However, in the present modification, an embodiment in which the normal broadcast and the multi-angle broadcast can be received in the digital broadcast will be described. . Further, in the first embodiment, the case where the normal broadcast video data and the multi-angle broadcast angle video data are displayed on the multi-screen has been described. However, in the present modification, the normal broadcast video data is converted into the angle from the normal broadcast video data. Switch to video data.

  The functional configuration of the set top box according to the modification of the present invention is substantially the same as that of the first embodiment. However, in this modification, a digital broadcast, that is, a broadcast signal 200 can receive a normal broadcast and a multi-angle broadcast. The receiving unit 105 is not provided. Hereinafter, blocks that perform processing different from that of the first embodiment in the functional configuration of FIG. 1 will be described.

  The tuner 101 receives the broadcast signal 200 and separates a signal of a desired channel from the broadcast signal 200 in accordance with, for example, reception channel setting information stored in the storage memory 108. In this modification, when a channel received by normal broadcasting is compatible with multi-angle broadcasting, there is usually one type of signal distributed from a single broadcasting station. And a video signal of multi-angle broadcasting and respective program attribute information.

  The main decoder 102 applies a decoding process to the video signal output from the tuner 101. When the channel received by the normal broadcast is compatible with the multi-angle broadcast, the main decoder 102 acquires the video data, the audio data, and the program attribute information of the normal broadcast and the multi-angle broadcast, respectively.

(Video switching process)
The video switching process of the set top box of the present modification having the above-described configuration will be described with reference to the flowchart of FIG. Also in this modified example, it is assumed that this video switching process is performed when a channel received by normal broadcasting is compatible with multi-angle broadcasting. In the present video switching process, the steps for performing the same process as the video switching process of the first embodiment are denoted by the same reference numerals and the description thereof is omitted, and the characteristic process of the video switching process of the present modification example is omitted. The steps to perform are described. Further, since the information of the normal broadcast and the multi-angle broadcast can be acquired from the broadcast signal 200 at the same time, it is not necessary to perform the program attribute information update process, and in this modification, it is only necessary to perform the video switching process and the camera information comparison process. .

  If it is determined in S402 that the same information as the normal scene camera information exists among the information specifying the plurality of television cameras included in the multi-angle broadcast camera information, the CPU 107 moves the process to S501. In step S501, the CPU 107 determines whether the video data output from the video output unit 104 to the display monitor 600 is normal broadcast video data or multi-angle broadcast video data. The video data information output to the display monitor 600 may be stored as, for example, viewing state information in the storage memory 108, and the CPU 107 makes a determination with reference to the viewing state information. If the video data output to the display monitor 600 is normal broadcast video data, the CPU 107 moves the process to S502. If the video data is multi-angle broadcast video data, the CPU 107 moves the process to S503.

  In step S502, the CPU 107 outputs to the display monitor 600 a GUI for notifying that the video data of the multi-angle broadcast being viewed and the video data of the same camera angle can be viewed even in the normal broadcast. Specifically, the CPU 107 stores a GUI stored in the storage memory 108 for notifying that the video data of the currently viewed multi-angle broadcast and the video data of the same camera angle can be viewed even in the normal broadcast. , Input to the image composition unit 110. Then, the CPU 107 causes the image synthesis unit 110 to synthesize the video data of the multi-angle broadcast and the input GUI, and transmits the obtained synthesized video data to the video output unit 104 for output to the display monitor 600. FIG. 8D shows a GUI display example for notifying that the video data of the multi-angle broadcast currently being viewed and the video data of the same camera angle can be viewed even in the normal broadcast. As shown in FIG. 8D, the user can be notified by displaying the GUI 804 on the upper right of the screen 800, for example.

  In step S503, the CPU 107 notifies that the normal broadcast video data being viewed can be switched to the video data of the same camera angle as the frame currently received in the normal broadcast, which is distributed by the multi-angle broadcast. The GUI to be output is output to the display monitor 600. Specifically, the CPU 107 stores GUI data indicating that it is possible to switch to a multi-angle broadcast video having the same camera angle as that of the frame currently received in the normal broadcast, which is stored in the storage memory 108. Input to the combining unit 110. Then, the CPU 107 causes the image composition unit 110 to synthesize the normal broadcast video data and the input GUI, and transmits the obtained composite video data to the video output unit 104 for output to the display monitor 600.

  In step S <b> 504, the CPU 107 determines whether the user has input from the remote controller 500 to the infrared light receiving unit 106 to switch from the currently viewed video data to video data of the same camera angle. That is, if the viewing state information stored in the storage memory 108 is a normal broadcast, the CPU 107 determines whether to switch to a multi-angle broadcast video having the same camera angle as the frame received in the normal broadcast. Judging. In addition, when the viewing state information stored in the storage memory 108 is multi-angle broadcasting, the CPU 107 determines whether to switch to normal broadcast video data. If there is no input to switch to video data having the same camera angle as the video data currently being viewed, the CPU 107 returns the process to S401, and applies the camera information comparison process to the newly received video signal. . If an input to switch to video data having the same camera angle as the video data currently displayed in S504 is made, the CPU 107 moves the process to S505.

  In step S <b> 505, the CPU 107 causes the main decoder 102 to transmit video data having the same camera angle as the currently viewed video data to which the decoding process is applied to the video output unit 104, and output the video data to the display monitor 600. Specifically, when the viewing state information stored in the storage memory 108 is a normal broadcast, the CPU 107 displays the video data of the multi-angle broadcast with the same camera angle as the frame received by the normal broadcast. The data is transmitted to the output unit 104. When the viewing state information stored in the storage memory 108 is multi-angle broadcasting, the CPU 107 transmits normal broadcast video data to the video output unit 104.

  Since this modification is different from the multi-screen display as in the first embodiment, this video switching process is repeatedly executed while the power of the set top box 100 is ON. In addition, when the output is switched to the angle video data of the multi-angle broadcast in this video switching process, if the distribution of the angle video data viewed by the multi-angle broadcast is lost, the output can be returned to the video data of the normal broadcast. That's fine.

  As described above, the video receiving device according to the present modified example uses the broadcast signal as the normal broadcast video signal (first video) and the multi-angle when the video received as the broadcast signal is compatible with the multi-angle broadcast. Broadcast video signals (second video) can be received. The video receiving apparatus acquires, from the broadcast signal, information specifying the imaging apparatus that has captured the frame of the normal broadcast video received by the broadcast signal. Furthermore, for each of a plurality of angle videos distributed by receivable multi-angle broadcasting, the video receiving apparatus acquires information for identifying a photographing apparatus that has photographed the angle video, and has photographed a frame of the normal broadcast video Compare with the information that identifies If there is the same information for identifying the compared image capturing devices, the image receiving device notifies that the image of the image capturing device that captured the frame of the normal broadcast image also exists in the angle image. Or, if there is the same information for identifying the compared image capturing devices, the image receiving device can view the image of the same camera angle as that of the image capturing device that captured the angle image even in normal broadcasting. Notice.

  Further, when a request to switch the video to be displayed is input by the user, the video receiving device switches from the currently viewed video to the video of the same camera angle and outputs it to the display device. Specifically, if you are currently viewing normal broadcast video, switch to the same camera angle angle video, and if you are currently viewing multi-angle broadcast video, switch to normal broadcast video Output to the device.

  As a result, when a video of the same angle as that of a normal broadcast video can be received by multi-angle broadcast, the user can check the camera angle in the received video and then switch to the angle video of the desired camera angle for display. Is possible. In addition, the user can switch to the normal broadcast video after confirming whether the video of the same angle as the multi-angle broadcast video can be viewed in the normal broadcast.

(Embodiment 2)
In the first embodiment described above, when video data of normal broadcast and video data of the same camera angle can be received by multi-angle broadcast, it is possible to register as the camera angle of multi-angle broadcast to be displayed. In other words, it was possible to register the camera angle of the multi-angle broadcast to be displayed only during the period when the camera angle of the video data of the normal broadcast is the same as the camera angle of the video data receivable by the multi-angle broadcast. In the second embodiment, it is also possible to cope with the case where the camera angle of the video data of the normal broadcast is switched between the time when the user notices the GUI display and the registration as the camera angle of the multi-angle broadcast to be displayed. Embodiments will be described.

(Camera information list update process)
Camera information list update processing of the set top box of the present embodiment having the configuration of the first embodiment will be described with reference to the flowchart of FIG. This camera information list update process is a process executed when it is determined in the above-described camera information comparison process that the multi-angle broadcast camera information includes information for identifying the same TV camera as the broadcast scene camera information. is there.

  In addition, the camera information list includes information for specifying the same TV camera when the multi-angle broadcast camera information includes information for specifying the same TV camera as the broadcast scene camera information, and the TV camera. This is a list that stores information for identifying the. The camera information list is stored in, for example, the storage memory 108, manages information for specifying up to two television cameras, and the user can select up to two candidate camera angles from the camera information list. FIG. 9 is an example of a camera information list. Each item includes information on the name of a received program, and information indicating the same TV camera as broadcast scene camera information in multi-angle broadcast camera information. Information and information of the camera ID that identifies the television camera are stored. Each item of the camera information list has deletion count information forcibly deleting the information of each item. When the deletion count becomes 0 regardless of the camera information list update process, the camera information list Deleted from.

  When camera information comparison processing is performed and information indicating that the camera information matches is stored in the storage memory 108, the CPU 107 manages the broadcast scene camera information in the camera information list stored in the storage memory 108 in S601. It is judged whether it is done. Specifically, the CPU 107 includes, in the camera information list stored in the storage memory 108, information (camera ID) that identifies the television camera that has captured the frame of the video received by the normal broadcast. Judge whether or not. When broadcast scene camera information is managed in the camera information list, the CPU 107 shifts the processing to S602.

  In step S <b> 602, the CPU 107 detects the information that identifies the same television camera in the normal broadcast and the multi-angle broadcast included in the item having the broadcast scene camera information in the camera information list stored in the storage memory 108. Update the information. The time information may be acquired by the CPU 107 from, for example, a built-in timer (not shown) included in the set-top box 100, the broadcast signal 200, or the like. When the update of the information at the time when the information specifying the same television camera in the normal broadcast and the multi-angle broadcast included in the item having the broadcast scene camera information in the camera information list is completed, the CPU 107 updates the camera information list. End the process.

  If the broadcast scene camera information is not managed in the camera information list in S601, the CPU 107 moves the process to S603. In step S <b> 603, the CPU 107 sets an item having the current broadcast scene camera information in the camera information list stored in the storage memory 108, and the time at which information specifying the same television camera in the normal broadcast and the multi-angle broadcast is detected. It is added together with information and program name information. Further, the CPU 107 adds, for example, deletion count reference value information stored in the storage memory 108 to the deletion count information included in the newly added item in the camera information list. The deletion count reference value information is, for example, time information such as 30 seconds, 1 minute, etc., and may be a value set in advance when the set top box 100 is shipped from the factory, or a value that can be set by the user. There may be. In addition, when adding an item having the current broadcast scene camera information to the camera information list, if there are already two items in the camera information list, the CPU 107 forces the item with the oldest addition time among the existing items. Delete them and add new items.

  In step S604, the CPU 107 determines whether there is an item in the camera information list that is different from the item having the current broadcast scene camera information added in step S603. Specifically, the CPU 107 determines whether there is an item in the camera information list having information for specifying a television camera different from the current broadcast scene camera information. That is, the CPU 107 determines whether there is an item having information for specifying the same television camera in the normal broadcast and the multi-angle broadcast, which is added to the camera information list before the current time. If there is an item other than the item having the current broadcast scene camera information in the camera information list, the CPU 107 moves the process to S605. If there is no item other than the item having the current broadcast scene camera information in the camera information list, the CPU 107 ends the camera information list update process.

  In step S605, the CPU 107 determines whether an item other than the item having the current broadcast scene camera information in the camera information list starts the deletion count. Specifically, the CPU 107 uses the deletion count reference value stored in, for example, the storage memory 108 as the deletion count information included in an item different from the item having the current broadcast scene camera information in the camera information list. If it is smaller, it is determined that the deletion count has started. If an item other than the item having the current broadcast scene camera information in the camera information list has started the deletion count, the CPU 107 ends the camera information list update process. If the item other than the item having the current broadcast scene camera information in the camera information list has not started the deletion count, the CPU 107 starts the deletion count of the corresponding item in S606, and the camera information The list update process is terminated. As described above, the deletion count is time information managed regardless of the camera information list update process. When the deletion count that decreases with the passage of time becomes 0, the CPU 107 deletes the deletion count from the camera information list. That's fine.

(Video switching process)
Next, the video switching process of the set top box according to the second embodiment will be described with reference to the flowchart of FIG. Also in the present embodiment, it is assumed that the video switching process is performed when a channel received by normal broadcasting is compatible with multi-angle broadcasting. In this video switching process, the same steps as those of the video switching process of the first embodiment are denoted by the same reference numerals and the description thereof is omitted, and the characteristic of the video switching process of the second embodiment is omitted. The steps for performing the processing will be described.

  If the normal scene camera information and the multi-angle broadcast camera information are different in S402, the CPU 107 moves the process to S701. In step S <b> 701, the CPU 107 determines whether there is an item in the camera information list stored in the storage memory 108 that has the same program name as the program currently received through the normal broadcast. If there is no item in the camera information list having the same program name as that of the program currently received by the normal broadcast, the CPU 107 moves the process to S409, and if it exists, moves the process to S702.

  In step S702, the CPU 107 performs the above-described camera information list update process, and moves the process to step S403. In step S <b> 403, the CPU 107 displays a display for notifying the user that the camera angle of the TV camera managed in the camera information list can be registered as a camera angle for viewing in multi-angle broadcasting from the video output unit 104. Output to 600. Specifically, the CPU 107 stores a GUI stored in the storage memory 108 for notifying that the camera angle of the television camera managed in the camera information list can be registered as the viewing camera angle, and the image composition unit 110. Output to. Then, the CPU 107 causes the image composition unit 110 to synthesize the normal broadcast video data and the GUI, and outputs the obtained composite video data to the video output unit 104. Note that the processing in this step is performed when an angle video shot by a television camera managed in the camera information list can be received by multi-angle broadcasting. Although it is managed in the camera information list, if the angle video shot by the TV camera already managed in the camera information list is not distributed by multi-angle broadcasting, it has information for identifying the corresponding TV camera Forcibly delete an item from the camera information list. Further, when there is no information specifying the TV camera managed by the camera information list, the CPU 107 may return the process to S701.

  In step S <b> 404, the CPU 107 determines whether an input for registering the camera angle of the television camera managed in the camera information list as the viewing camera angle in the multi-angle broadcast is made by the user from the remote controller 500 to the infrared light receiving unit 106. . If the input for registering as the viewing camera angle is not made, the CPU 107 returns the process to S701. If the input for registering as the viewing camera angle is made, the CPU 107 moves the process to S703.

  In step S <b> 703, the CPU 107 determines how many items having information specifying the TV camera managed by the camera information list stored in the storage memory 108 are present. That is, the CPU 107 determines whether the camera angle of the television camera that can be registered as the viewing camera angle managed in the camera information list is one or two. If there is one item having information specifying the TV camera managed by the camera information list, the CPU 107 shifts the process to S704.

  In step S <b> 704, the CPU 107 stores information for specifying one television camera managed by the camera information list in the storage memory 108 as the camera angle of the multi-angle broadcast to be displayed. Then, the CPU 107 outputs to the display monitor 600 a display for notifying the user that the camera angle of the television camera managed by the camera information list has been registered as the camera angle for viewing by multi-angle broadcasting (S406).

  If there are two items having information for identifying the television camera managed by the camera information list in S703, the CPU 107 shifts the process to S705. In step S <b> 705, the CPU 107 displays a display from the video output unit 104 that allows the user to select which of the camera angles of the two television cameras managed by the camera information list is registered as the camera angle to be viewed in multi-angle broadcasting. Output to the monitor 600. Specifically, the CPU 107 synthesizes a GUI stored in the storage memory 108 for selecting which of the camera angles of the two television cameras managed in the camera information list is registered as the viewing camera angle. Output to the unit 110. Then, the CPU 107 causes the image composition unit 110 to synthesize the normal broadcast video data and the GUI, and outputs the obtained composite video data to the video output unit 104.

  FIG. 8E is a GUI display example for allowing the user to select a camera angle to view when managing items having information for specifying two television cameras in the camera information list. In the GUI 805 displayed in the center of the screen 800, two television cameras managed in the camera information list are displayed as options. When the camera information list includes information for specifying two television cameras, the following cases can be considered for the information of the two television cameras. That is, it is considered that the TV camera that captures the camera angle before switching to the TV camera of the current broadcast scene camera information and the camera angle of the video currently received in the normal broadcast is managed in the camera information list. Therefore, the TV camera options displayed on the GUI 805 may be, for example, “currently viewing camera angle” and “camera angle viewed immediately before”. If the program being viewed is a sports broadcast such as soccer or baseball, the position at which the TV camera such as “1st camera” or “3rd camera” is placed may be displayed as an option. .

  In step S <b> 706, the CPU 107 determines whether an input for selecting one of GUI options for selecting the camera angle displayed in step S <b> 705 has been input from the remote controller 500 to the infrared light receiving unit 106. The CPU 107 repeatedly performs the process of S706 until an input is made. However, if the input is not performed for a predetermined time, the camera angle is forcibly selected and the process proceeds to S707 or a GUI display is performed. May be canceled and the process may return to S701.

  In step S <b> 707, the CPU 107 stores, in the storage memory 108, information for specifying one television camera managed by the camera information list selected in step S <b> 706 as the camera angle of the multi-angle broadcast to be displayed. Then, the CPU 107 outputs a display for notifying the user that one of the camera angles of the television camera managed by the camera information list has been registered as a camera angle for viewing by multi-angle broadcasting, on the display monitor 600 (S708). FIG. 8F shows an example of GUI display for notifying that a camera angle for viewing in multi-angle broadcasting has been registered. The GUI 806 for notifying that the user has registered is displayed to prompt the user to confirm the notification, and the display may be terminated upon receiving the confirmation input, or may be terminated after being displayed for a predetermined time. . Also, the GUI 801 that notifies that the viewing camera angle can be registered may end the display at the same time as the GUI 806 that notifies that the viewing camera angle has been registered, for example.

  As described above, the video receiving apparatus according to the present embodiment allows the video signal (first video) received as a broadcast signal to be compatible with multi-angle broadcasting. 2nd video) can be received. The video receiving device acquires from the broadcast signal information identifying the imaging device that has captured the frame of the video received by the broadcast signal. Furthermore, for each of a plurality of angle videos distributed by receivable multi-angle broadcasting, the video receiving apparatus acquires information for specifying a shooting apparatus that shot the angle video, and shot the video received by the broadcast signal Compare with the information that identifies When there is the same information for identifying the compared photographing devices, the video receiving device identifies up to two photographing devices for identifying the photographing device that photographed the frame of the video received by the broadcast signal. Manage the information to be processed in a list. Then, the video receiving apparatus notifies that the video of the imaging apparatus that has captured the video received by the broadcast signal also exists in the angle video.

  Further, when an angle video display request for displaying an angle video is input by the user, the video receiving device performs the following processing according to the number of pieces of information specifying the imaging devices managed in the list. If there is only one piece of information for specifying the image pickup devices managed in the list, information for specifying the image pickup devices managed in the list is stored. In addition, when there are two pieces of information for specifying the imaging devices managed in the list, the user is allowed to select information for specifying the imaging devices managed in the list, and the selected one of the imaging devices is specified. Store information. Then, when the information of the imaging device that captured the video received by the broadcast signal is different from the stored information of the imaging device, the video received by the broadcast signal and the angle video captured by the stored imaging device are combined. Output to the display device.

  As a result, when the video of the same angle as the video received by the broadcast signal can be received by multi-angle broadcasting, the user can check the camera angle in the received video and display the angle video of the desired camera angle. Is possible. In addition, when the imaging device that captures the frame of the video received by the broadcast signal is switched between the time when the user notices the notification and the time when the angle video display request for displaying the angle video is input, the desired image is also switched. It is possible to display an angle image of the camera angle.

  In the first embodiment, the modified example, and the second embodiment, in the camera information comparison process, it is determined whether the video data of the normal broadcast and the multi-angle broadcast are captured by the same television camera, and the camera information is It is assumed that they match. However, the condition that the camera information matches in the camera information comparison process is not limited to information indicating whether the camera information is captured by the same television camera, and may be determined by, for example, a subject captured by the television camera. Specifically, if there is a video in which the main subject displayed in the frame of the video received in the normal broadcast is the main subject in the video distributed in the multi-angle broadcast, the camera information May match. In this case, for example, the video signal is distributed including the information of the main subject in the program attribute information of the normal broadcast and the multi-angle broadcast, and the determination is made by comparing the information of the subject of each of the normal broadcast and the multi-angle broadcast. May be. Alternatively, the determination may be made by performing an image pattern matching process on a video frame distributed in the normal broadcast and the multi-angle broadcast.

Claims (10)

Receiving means capable of receiving a first video signal that is processed while sequentially switching video signals captured by a plurality of imaging devices ;
And output means for outputting the first video signal being received by the receiving means on a display unit,
Specifying means for specifying a first imaging device that captured the frame of the first video signal displayed on the display unit,
Determining whether or not the receiving means can further receive a second video signal that is different from the first video signal and proceeds only by the video signal captured by the first imaging device. A judgment means to
When said second video signal is determined to be receivable by the determining means performs the notification can receive the second image signal, the second video signal by said determining means An image receiving apparatus comprising: notification means for not performing the notification when it is determined that reception is not possible . The output means that the first video signal output to the display unit is switched from a video signal shot by the first shooting device to a video signal shot by the second shooting device. The video receiving apparatus according to claim 1, wherein the first video signal and the second video signal are combined and output to the display unit. When the notification before Symbol notifying means is such, further comprising a registration hand stage, registering information of said first imaging device in response to a predetermined input,
And the output means, the specific means and the first imaging device specified by the if indicated by information registered by the registration means imaging device is different, pre-Symbol first video signal and the second The video receiving apparatus according to claim 1, wherein the video signal is combined with the video signal and output to the display unit . The first video signal is a video signal corresponding to a terrestrial broadcast signal provided via a terrestrial wave,
  4. The video receiving apparatus according to claim 1, wherein the second video signal is a video signal corresponding to a broadcast signal of IP broadcast provided via a network. 5. 5. The video receiving apparatus according to claim 1, wherein the notification is performed in a form of being superimposed on the first video signal in the display unit. 6. A control method of a video receiving apparatus having a receiving means capable of receiving a first video signal that proceeds while sequentially switching video signals captured by a plurality of imaging apparatuses ,
Wherein the output means of the video receiver apparatus, and an output step of outputting the first video signal being received by the receiving means on a display unit,
The specific means of the video receiver apparatus, a specifying step of specifying a first imaging device that captured the frame of the first video signal displayed on the display unit,
The determination means of the video receiving device is a video signal different from the first video signal, and the second video signal which proceeds only by the video signal photographed by the first photographing device is the receiving means. A step of determining whether or not can be further received;
Wherein the notification unit of the video receiver apparatus, when the second video signal is determined to be receivable by the determining step performs notification can receive the second image signal, the determining And a notification step of not performing the notification when it is determined by the means that the second video signal is not receivable. In the output step, the output means converts the first video signal output to the display unit from a video signal shot by the first shooting device to a video signal shot by the second shooting device. The video receiving apparatus control method according to claim 6, wherein the first video signal and the second video signal are combined and output to the display unit in response to the switching. Registration means before SL video receiving device, when said notification is such in the notifying step further comprises, as registration engineering for registering information of said first imaging device in response to a predetermined input,
Said output means in said output step, the said first photographing apparatus specified in the specifying step, if different from the imaging indicated by information registered in the registration process equipment, and pre-Symbol first video signal 7. The video receiving apparatus control method according to claim 6 , wherein the second video signal is synthesized and output. The first video signal is a video signal corresponding to a terrestrial broadcast signal provided via a terrestrial wave,
  9. The control of a video receiving apparatus according to claim 6, wherein the second video signal is a video signal corresponding to a broadcast signal of IP broadcast provided via a network. Method. 10. The video receiving apparatus control method according to claim 6, wherein the notification is performed in a form of being superimposed on the first video signal in the display unit.

Images