JP2010034699A - Broadcast transmitter, broadcast receiver, and broadcast transmission and reception system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a broadcast transmission and reception system 3 for allowing a viewer to easily recognize a target object being displayed on a display screen 25A of a display 25. <P>SOLUTION: The broadcast transmission and reception system 3 comprises the broadcast transmitter 1 and the broadcast receiver 2. The broadcast transmitter 1 transmits a broadcast signal including a main image signal with first additional information A1 and second additional information A2 added thereto, the first additional information A1 being appearance information for specifying a target object, and the second additional information A2 comprising auxiliary video images captured by TV cameras 17-19. The broadcast receiver 2 comprises: a target object selecting device 27 for allowing the viewer to select one target object which can be specified from the additional information, a detection circuit 28 for detecting the target object within the main video image, and a marker display circuit 32 for displaying a marker 40 showing the position of the target object in order to facilitate recognition of the target object on the display screen 25A on which the main video image including the target object is displayed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a broadcast transmission device, a broadcast reception device, and a broadcast transmission / reception system, and in particular, a broadcast transmission device, a broadcast reception device, and a broadcast transmission / reception in which a specific object in a main video is easily recognized on a display screen of the broadcast reception device. About the system.

  In the display screen of a broadcast receiving apparatus, for example, a television receiver, it may not be easy for the viewer to grasp the position of an object that constantly moves within the screen. For example, in a broadcast video of a soccer game, a viewer may lose sight of the position of the ball by displaying an image in which a player overlaps the ball. Alternatively, the viewer may lose sight of the ball position at the next moment by keeping an eye on the display screen. In particular, in a broadcast video of a soccer game, the ball is displayed relatively small on the display screen in order to display a wide stadium over a wide range. For this reason, it is not easy for the viewer to track a small ball that continues to move on the display screen, which may cause fatigue.

  Note that in the recorded broadcast, video effects such as adding a marker to a specific object and displaying it are performed on a specific object in order to assist the viewer's recognition. . However, in live broadcasting, it is not easy to add a video effect to a specific object, and it has not been possible to add a video effect to different objects that each viewer wants to pay attention to.

Japanese Patent Laid-Open No. 2005-130462 discloses a display in which one of a plurality of video channels photographed from different positions by a plurality of cameras is selected and displayed one after another according to the subject that the viewer wants to see. An apparatus is disclosed. Japanese Patent Application Laid-Open No. 2003-153250 discloses an automatic tracking display method for displaying a video of an angle of view including a video of a subject selected by a viewer from omnidirectional video.
JP 2005-130462 A JP 2003-153250 A

  An object of the present invention is to provide a broadcast transmission device, a broadcast reception device, and a broadcast transmission / reception system in which a viewer can easily recognize a specific object displayed on a display screen.

  According to one aspect of the present invention, a main video photographing means for photographing a main video and outputting a main video signal, an additional information processing means for processing appearance information for specifying an object, and an appearance processed by the additional information processing means There is provided a broadcast transmission apparatus characterized by comprising combining means for adding information as additional information to a main video signal and transmission means for transmitting a broadcast signal in which additional information is added to the main video signal.

  According to another aspect of the present invention, there is provided a main video photographing means for photographing a main video and outputting a main video signal, an additional information processing means for processing appearance information for specifying an object, and the additional information processing means. From a broadcast transmitting apparatus, comprising: a combining means for adding the processed appearance information as additional information to the main video signal; and a transmission means for transmitting a broadcast signal in which the additional information is added to the main video signal. A receiving means for receiving a broadcast signal, a signal processing means for displaying the main video on the display means and processing the additional information, and one object that can be specified by the additional information can be selected from the broadcast signal received by the receiving means. The position of the object detected by the detection means in the main video displayed on the display means and the detection means for detecting the object selected by the selection means in the main video using the additional selection means. Marker to indicate Broadcast receiving apparatus is provided, characterized in that it comprises a marker display means for displaying.

  According to the present invention, it is possible to provide a broadcast transmission device, a broadcast reception device, and a broadcast transmission / reception system in which a viewer can easily recognize a specific object displayed on a display screen.

<First Embodiment>
Hereinafter, a broadcast transmission / reception system 3 having a broadcast transmission apparatus 1 and a broadcast reception apparatus 2 according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of a broadcast transmission / reception system having a broadcast transmission apparatus and a broadcast reception apparatus according to the present embodiment.

  As shown in FIG. 1, the broadcast transmission / reception system 3 of this embodiment includes a broadcast transmission device 1 and a broadcast reception device 2. Hereinafter, a broadcast transmission / reception system, a broadcast transmission device, or a broadcast reception device is also referred to as a “broadcast transmission / reception system”. In the broadcast transmitting apparatus 1, the TV camera A (12), which is a main video shooting unit for shooting the main video, outputs the main video signal S1. In the broadcast transmitting apparatus 1, a synthesized signal obtained by adding the first additional information A1 and the second additional information A2 to the main video signal S1 is synthesized by the synthesizing circuit 13 which is a synthesizing means, and is transmitted as the transmitting means. The signal is transmitted as a broadcast signal by the circuit 14. Of course, in the broadcast signal, not only the first additional information A1 and A2 but also an audio signal and various control signals are added to the main video signal S1. The transmission method may be a digital TV broadcast wireless transmission method or a wired transmission method such as a cable TV line or an Internet line.

  Here, the first additional information A1 and the second additional information A2 are the specific target object (hereinafter referred to as “target”) displayed on the display screen 25A of the display 25 of the broadcast receiver 2 by the viewer who views the broadcast. It is additional information for processing so that it can be easily recognized. That is, in the broadcast transmission / reception system 3, the target body is determined in advance by the broadcast transmission device 1, in other words, the broadcast station. Then, the broadcast transmission device 1 adds additional information related to the determined target object to the main video signal S1 and transmits it as a broadcast signal.

  Here, the first additional information A1 is processed by the additional information 1 processing circuit 15 which is the first additional information processing means, and the feature information of the appearance of the target body for specifying the target body, that is, the target body from the video. It is information that can specify. On the other hand, the second additional information A2 is processed by the additional information 2 processing circuit 16 which is the second additional information processing means, and auxiliary video photographing means, for example, three TV cameras, that is, TV camera B (17). , TV camera C (18) and TV camera D (19) are three types of auxiliary video and position information of each TV camera. In the broadcast transmission / reception system 3, at least one auxiliary video photographing means is required. The larger the number of auxiliary video photographing means, the more often the broadcast receiver 2 can identify the target, but the broadcast transmission / reception system 3 becomes complicated, so the broadcast station appropriately selects according to the broadcast content and target To do.

  Then, the broadcast receiving device 2 receives the broadcast signal from the broadcast transmitting device 1 as a reception means 21, a decoding circuit 22 that decodes the received signal, and processes the decoded signal to display the video. 25, and a signal processing circuit 23 that outputs sound from the speaker 24. The signal processing circuit 23 is signal processing means for processing additional information added to the received signal.

  Then, the broadcast receiving apparatus 2 uses the first additional information A1 and the second additional information A2, which are additional information, so that the viewer can easily recognize the target object displayed on the display 25. For the recognition processing to be performed, it includes a list display circuit 26, a target object selection device 27, a display control circuit 31, a marker display circuit 32, a detection circuit 28, a tracking circuit 29, and a storage device 30.

  The target object selection device 27 as selection means is an apparatus that allows the viewer to select a target object from a list of target objects displayed on the display 25 by the list display circuit 26 as list display means. A remote control or a mouse can be used.

  The detection circuit 28 is detection means for detecting a target body in the main video using the first additional information A1 and the second additional information A2. The tracking circuit 29 is tracking means for continuously tracking a detected target object by differential analysis or the like based on information of the storage device 30 in which past images, that is, past frame images are stored. . The marker display circuit 32 is marker display means for displaying a marker 40 (see FIG. 2) indicating the position of the target body in order to facilitate recognition of the target body detected by the viewer on the display screen 25A of the display 25. Yes, the display control circuit 31 processes signals from the list display circuit 26, the marker display circuit 32, etc., and superimposes them on the main video signal.

  The broadcast transmission / reception system 3, the broadcast transmission device 1, and the broadcast reception device 2 of the present embodiment attach and track the marker 40 to the specified target body on the display screen 25A. Thus, the viewer can clearly grasp the position of the selected target object, that is, the viewer can easily recognize a specific object displayed on the display screen.

  Next, with reference to the drawings, the broadcast transmission / reception system 3 according to the first embodiment of the present invention will be described in more detail using a soccer game relay broadcast as an example. FIG. 2 is an explanatory diagram for explaining an example of the display screen of the display of the broadcast receiving apparatus of this embodiment, and FIG. 3 is a diagram for explaining the first additional information of the broadcast transmission / reception system of this embodiment. FIG. 4 is an explanatory diagram, and FIG. 4 is an explanatory diagram for explaining second additional information of the broadcast transmission / reception system of the present embodiment.

  FIG. 2 shows an example of a display screen 25A of the display 25 when the viewer selects a soccer ball (hereinafter referred to as “ball”) 42 as the target body. Since the arrow marker 40 is displayed on the ball 42 in the display screen 25 </ b> A, the viewer can select the players 43 </ b> A to 43 </ b> G in the display screen 25 </ b> A in which a wide range of the competition field (pitch) 41 is displayed. Thus, even the small ball 42 that moves can be easily recognized.

  In FIG. 2, the arrow marker 40 is exemplified as the marker. However, the marker may be a circle that surrounds the entire ball 42, or the ball 42 may be displayed in a specific color. It should be noted that the marker 40 may be selectable or blinked by the viewer so that the marker 40 can be easily recognized in the display screen 25A.

  Next, additional information will be described. In the broadcast transmission / reception system 3 according to the present embodiment, first additional information A1 and second additional information A2 are used as additional information. The first additional information A1 is characteristic information of the appearance of the target body that identifies the target body, that is, information that can identify the target body from the video.

  That is, as illustrated in FIG. 3, the first additional information A1 includes a photograph, a size, a pattern, a color, and the like of the ball 42 when the target body is a ball 42 used in a game. Information, when the target body is a player 43, it is information consisting of a photograph of the player 43, body data information such as height, body type, skin color, etc., uniform color and pattern, and a spine number. is there. What information is used as the first additional information A1 differs depending on the broadcast program, and is selected and managed by the broadcast station using the broadcast transmitting apparatus 1. Also, the broadcast station selects which object is selected as the target object, and the broadcast station collects the first additional information A1 about the selected target object before the start of broadcasting.

  Next, the second additional information A2 will be described with reference to FIG. The second additional information A2 is an auxiliary video from the viewpoint captured by the video imaging device and position information of the video imaging device. In FIG. 4, the second additional information A2 includes the TV camera B (17) arranged behind the goal of the competition field 5 and the TV camera C (18) arranged beside the center line as shown in FIG. 4 (A). 4B, FIG. 4C, and FIG. 4B, which are three types of auxiliary images captured by the three image capturing devices including the TV camera D (19) disposed directly above the center marker. D) and position information of the respective TV cameras 17 to 19. The position information is displayed, for example, as a coordinate value with the center marker as the origin.

  In FIG. 4A, the TV camera A (12) is a main video photographing means for photographing the main video, and an example of the main video is FIG. 4E. In other words, the broadcast transmission / reception system 3 has one main video photographing unit and three auxiliary video photographing units. Of course, the main video photographing means for photographing the main video is not limited to one, and several TV cameras may be used while switching like a normal broadcast program. The position information of the main video device is also included in the second additional information A2.

  Next, the flow of processing in the broadcast receiving apparatus 2 will be described with reference to FIG. FIG. 5 is a flowchart for explaining the flow of processing in the broadcast receiving apparatus 2 of the present embodiment. Less than. This will be described with reference to the flowchart of FIG.

<Step S10>
The broadcast receiving device 2 receives the broadcast signal broadcast from the broadcast transmitting device 1 by the receiving circuit 21. Then, the decoding circuit 22 combines the broadcast signal and transmits the main video signal S1 and the additional information to the signal processing circuit 23.

<Step S11>
The display control circuit 31 displays a list of target objects that can be specified by the additional information generated by the list display circuit 26 on the display 25.

  Here, FIG. 6 is an example of the target list display screen in the broadcast receiving apparatus of the present embodiment. FIG. 6 shows a state in which a main video display area 49 and a ball selection area 50 and a player selection area 51 are displayed as selectable target bodies on the display screen 25A. The viewer selects one target object that he / she wants to watch from among a plurality of target objects displayed on the target object list display screen by using a remote controller as an input device of the target object selecting device 27.

  For example, in FIG. 6 shows a state in which the player 27 is highlighted by the cursor 27A. When the viewer presses the selection button on the remote controller in this state, the No. of Team A is set as the target body. Six players are selected. The cursor 27A can be moved with the up / down / left / right movement buttons or the like of the remote controller, and the viewer can select the target object he / she wishes to view reliably and with a simple operation. Information about which object the selected target body is is stored in the storage device 30 or the like.

  The target object selection method is not the method using the target object list display screen as described above, but each target object displayed in the vicinity of the selectable target object displayed in the main video. Alternatively, the viewer may select a selection marker or the like using a remote controller or the like.

  Depending on the broadcast program, the broadcast transmission apparatus 1 may select one target in advance, and the selection information may be added to the broadcast signal as a selection initial value. In this case, even if the viewer does not select the target body, the target body selection device 27 can automatically specify the target body using the selection initial value. Furthermore, when there is only one target body, the target body selection device 27 can be regarded as having automatically identified the target body.

<Step S12>
In step S11, when a target body is not selected (No), the broadcast receiving apparatus 2 does not perform the target body recognition process after step S13. On the other hand, when the viewer selects one target object (Yes), the broadcast receiving apparatus 2 starts the target object recognition process after step S13.

<Step S13>
The signal processing circuit 23 calls additional information related to the selected target body from a temporary memory (not shown) or the like. That is, the additional information related to the selected target object is selected from the additional information related to all target objects, and is made available in the subsequent steps.

<Steps S14 and S15>
When the broadcast program is in a CM (commercial), the broadcast receiving apparatus 2 stands by until the CM is finished. For detecting whether a broadcast program is a CM, a publicly known method that pays attention to a change in a screen, a change in an audio level, or the like can be used.

<Step S16>
The detection circuit 28 detects the target body in the main video using the first additional information A1 and the second additional information A2. The detection method will be described in detail later.

<Step S17>
When there is no target object in the main video (No), the broadcast receiving apparatus 2 performs redetection by the processing from step S14.

<Step S18>
The marker display circuit 32 outputs the position and shape of the marker 40 displayed in the main video to the display control circuit 31, and the signal processing circuit 23 displays the marker 40 indicating the position of the target body based on the information. It is superimposed on the main video and displayed on the display 25.

<Steps S19 and S20>
The broadcast receiving device 2 displays a message indicating the end of the process on the display 25 when an instruction to end the target object recognition process is input by the viewer or when the main video is changed due to channel switching. The process is terminated.

<Steps S21 and S22>
In the middle, when the main video is switched to CM (Yes), the broadcast receiving apparatus 2 cancels the display of the marker 40 displayed on the display 25 and performs the processing from step S14.

<Step S23>
A tracking circuit 29 tracks the target body. The tracking of the target will be described in detail later.

<Step S24>
When the tracking circuit 29 can track the target body (Yes), the broadcast receiving apparatus 2 continues the process from step S18. When the tracking circuit 29 cannot track the target body (No), the broadcast receiving apparatus 2 cancels the display of the marker 40 displayed on the display 25 in step S22, and performs the processing from step S14. Do.

  Next, a detection method for detecting a target object in the main video performed by the detection circuit 28 in step S16 of the flowchart shown in FIG. 5 will be described in detail with reference to FIG. FIG. 7 is a flowchart for explaining the flow of target body detection processing performed by the detection circuit of the broadcast receiving apparatus of the present embodiment. Hereinafter, description will be made with reference to the flowchart of FIG.

<Step S30>
First, the detection circuit 28 detects the target body using the first additional information A1 in the main video.

<Step S31>
The detection circuit 28 ends the process when an instruction to end the target object recognition process is input by the viewer or when the main video is changed by switching the channel.

<Step S32>
The detection circuit 28 completes the detection process when the target body is detected in the main video (Yes). When the target body cannot be detected (No), the detection circuit 28 detects the target body with reference to the second additional information A2 in the processing from step S33.

<Steps S33 to S39>
The detection circuit 28 sequentially refers to the second additional information A2. Here, as shown in FIG. 4, the second additional information A2 is shot by the TV camera B (17), the TV camera C (18), and the TV camera D (19), which are three auxiliary video shooting means. The three types of auxiliary video and the position information of each TV camera. When the target circuit can be detected from the auxiliary image captured by any TV camera, the detection circuit 28 determines the position of the target object in the main image based on the position information of the TV camera.

<Steps S40 to S41>
The detection circuit 28 is “detecting” on the display 25 when the target object detection fails from a predetermined threshold number of times N or more (N ≧ 2), in other words, from N or more main video frame images continuing from a certain time. Is displayed, and the analysis of the main video from step S30 is repeated again. The predetermined threshold number may be two times or more, and preferably about three times.

  Note that the target body has a unique appearance in the main video like the ball 42, so that it is relatively easy to detect the object O1 and a specific player among a plurality of players wearing the same clothes. In order to detect as described above, there is an object O2 whose appearance needs to be analyzed in detail. In many cases, the detection circuit 28 can detect the object O1 by simply referring to any one of the shape and the color in the first additional information A1. In order to detect the object O2, it is necessary to scrutinize all the information on the color of the uniform, the back number, the face, the color of the skin, and other physical characteristics in the first additional information A1. As a specific method of detection, a known technique such as image recognition by a pattern matching method for determining identity from similarity of features, image analysis by texture analysis, and an approximate color determination technique by pigment information is used. be able to.

  Next, a tracking method for tracking the target object in the main video performed by the tracking circuit 29 in step S23 of the flowchart shown in FIG. 5 will be described in detail with reference to FIG. FIG. 8 is a flowchart for explaining the flow of the target tracking process performed by the tracking circuit of the broadcast receiving apparatus. Hereinafter, a description will be given according to the flowchart of FIG.

<Step S50>
The tracking circuit 29 compares the main video of the previous time, that is, the previous frame video, with the current time of the video, that is, the current frame video, and performs a target object tracking process by performing known difference analysis such as motion vector analysis. . Since the tracking process is simpler than the detection process, the processing speed is faster than the detection process. For this reason, the broadcast receiving apparatus 2 performs a tracking process on the target object that can be detected by the detection process.

<Step S51>
The tracking circuit 29 determines whether the main video screen has been switched. When the screen is switched (Yes), the tracking circuit 29 performs analysis based on the second additional information A2 after step S54 because there is a high possibility that the position of the target body has changed significantly. On the other hand, when the screen is not switched (No), the tracking circuit 29 performs the processing from step S52.

<Step S52>
The tracking circuit 29 compares the previous frame image of the main image with the current frame image, and performs difference analysis by, for example, image recognition by pattern matching or texture analysis. Note that the frame image used for the difference analysis is not only performed for all frames, but the difference analysis may be performed at a predetermined frame interval.

<Step S53>
The tracking circuit 29 completes the tracking process when the position of the target object can be recognized by the difference analysis comparing the previous frame video of the main video and the current frame video (Yes). In this case, “Yes” is displayed in step S24 of FIG. 5, and the marker 40 is displayed on the main video. When the position of the target body cannot be recognized by the main video difference analysis (No), the tracking circuit 29 performs analysis based on the second additional information A2 after step S54.

<Steps S54 to S60>
The tracking circuit 29 refers to the second additional information A2 in order. Here, as shown in FIG. 4, the second additional information A2 includes three types of auxiliary images captured by the three TV cameras 17 to 19 serving as auxiliary image capturing means, and position information of each TV camera. It is. The detection circuit 28 analyzes the position of the target body by differential analysis of the auxiliary video of any TV camera. When the tracking circuit 29 can track the target body (S54; Yes), the tracking circuit 29 can determine the position of the target body in the main video based on the position information of the TV camera. When the target circuit cannot be tracked (S54; No), the tracking circuit 29 determines “tracking failure” in step S61 and ends the tracking process. In this case, “No” is obtained in step S24 in FIG. 5, the marker display of the main video is canceled, and the detection circuit 28 starts the detection process.

As described above, in the broadcast transmission / reception system or the like, the viewer can easily recognize the target selected by the viewer on the display screen 25A by the marker 40 <Second Embodiment>
A broadcast transmission / reception system 3B having a broadcast transmission device 1B and a broadcast reception device 2B according to the second embodiment of the present invention will be described below with reference to FIGS. Since the broadcast transmission / reception system 3B having the broadcast transmission device 1B and the broadcast reception device 2B is similar to the broadcast transmission / reception system 3 having the broadcast transmission device 1 and the broadcast reception device 2, the same components are denoted by the same reference numerals. Is omitted.

  FIG. 9 is a schematic configuration diagram of a broadcast transmission / reception system having a broadcast transmission apparatus and a broadcast reception apparatus according to the present embodiment. FIG. 10 is a target detection process performed by the detection circuit of the broadcast reception apparatus according to the present embodiment. FIG. 11 is a flowchart for explaining the flow of the target tracking process performed by the tracking circuit of the broadcast receiving apparatus according to the present embodiment.

  As shown in FIG. 9, the broadcast transmitting apparatus 1B according to the present embodiment adds only the first additional information A1 as additional information. For this reason, the broadcast receiving apparatus 2B performs target object detection processing and tracking processing based on only the first additional information A1 as additional information.

  Then, as shown in FIG. 10, the detection circuit 28 of the broadcast receiving apparatus 2B repeats until the target body can be detected using the first additional information A1. If the detection circuit 28 fails to detect the predetermined threshold number of times K or more, the detection circuit 28 ends the detection process as “not detectable”. The predetermined threshold number K may be two or more, and preferably about three. Further, as shown in FIG. 11, the tracking circuit 29 of the broadcast receiving device 2B performs only the difference analysis of the main video.

  The target body detection capability and target body tracking capability of the broadcast receiving apparatus 2B of this embodiment are inferior to those of the broadcast receiving apparatus 2 of the first embodiment. However, when the target body is an object O1 that is relatively easy to detect and track, such as the ball 42, the broadcast receiving apparatus 2B can achieve the same effects as the broadcast receiving apparatus 2. The broadcast transmission / reception system 3B has a simpler configuration than the broadcast transmission / reception system 3 and does not require a video imaging device other than a TV camera that captures the main video. Even when a TV camera that captures images cannot be installed, the effect can be obtained.

<Third Embodiment>
Hereinafter, a broadcast transmission / reception system 3C having the broadcast transmission device 1C and the broadcast reception device 2C according to the third embodiment of the present invention will be described with reference to FIGS. FIG. 12 is an explanatory diagram for explaining an example of a display screen on the display of the broadcast receiving apparatus according to the present embodiment, and FIG. 13 is a flowchart for explaining a processing flow in the broadcast receiving apparatus 2 according to the present embodiment. It is a flowchart of. Since the broadcast transmission / reception system 3C having the broadcast transmission device 1C and the broadcast reception device 2C is similar to the broadcast transmission / reception system 3 and the like, the same components are denoted by the same reference numerals and description thereof is omitted. The configuration of the broadcast transmission / reception system 3C is the same as that of the broadcast transmission / reception system 3 shown in FIG.

  In the broadcast receiving device 2, the marker 40 is not displayed when there is no target in the main video. On the other hand, in the broadcast receiving device 2C, even if the target object is hidden by an obstacle in the main image, if the target object can be detected from the auxiliary image, the position of the hidden target object is indicated as a marker. Display by 40B.

  That is, in the flowchart of FIG. 12, even if there is no target object in the main video in Step S17 (No), if the target object can be detected based on the auxiliary video in Step S25, the marker in Step S18. 40B is displayed.

  For example, as shown in FIG. 13, in the broadcast receiving apparatus 2C, in the main video captured by the main video imaging means, the target ball 42 and the player 43A overlap, and the ball 42 is hidden and the detection circuit 28 cannot detect. Even in this case, the position of the ball 42 may be detected from the second additional information A2, that is, the auxiliary image captured by the auxiliary image capturing means. In this case, in the broadcast receiving device 2C, the position of the ball 42 not displayed on the display screen 25A is displayed by the marker 40B.

  In the broadcast transmission / reception system 3C and the like, in addition to the effects of the broadcast transmission / reception system 3 and the like, the viewer can recognize the position of the target object not displayed on the display screen 25A by the marker 40B.

  Note that the broadcast receiving apparatus 2C cannot detect the target object from the main video captured by the main video image capturing unit, but can detect the target image from the auxiliary video image captured by the auxiliary video image capturing unit. It is preferable to display a marker different from the marker 40 when the target body is detected from the main video imaged by the imaging means, for example, the blinking marker 40B. By using different markers, the viewer can recognize whether or not the target body is displayed on the display screen 25A depending on the type of the marker.

  As described above, the broadcast receiving apparatus 2C according to the present embodiment includes a main video photographing unit that photographs a main video and outputs a main video signal, and an auxiliary video photographing unit that captures an auxiliary video and outputs an auxiliary video signal. A first additional information processing means for processing appearance information for identifying an object and generating first additional information; a process for processing the auxiliary video signal and the position information of the auxiliary video photographing means; A second additional information processing means for generating additional information; the appearance information processed by the first additional information processing means and the second additional information processing means; the auxiliary video signal; and the auxiliary video photographing means. From a broadcast transmitting apparatus, comprising: combining means for adding position information as additional information to the main video signal; and transmitting means for transmitting a broadcast signal in which the additional information is added to the main video signal. Release A receiving means for receiving a signal; a signal processing means for displaying a main video on a display means and processing the additional information from the broadcast signal received by the receiving means; In the main image displayed on the display means, a selection means capable of selecting an object, a detection means for detecting the object selected by the selection means in the main video using the additional information. Marker display means for displaying a marker indicating the position of the object detected by the detection means, and the marker display means cannot be detected from the main video but can be detected from the auxiliary video. A broadcast receiving apparatus that displays the marker indicating the position of an object, and can be detected only from the marker for the object detected from the main video and the auxiliary video And the marker for the object is a broadcast receiving apparatus according to claim different.

  The present invention is not limited to the above-described embodiments, and various changes and modifications can be made without departing from the scope of the present invention.

It is a schematic block diagram of the broadcast transmission / reception system which has the broadcast transmission apparatus and broadcast reception apparatus of 1st Embodiment. It is explanatory drawing for demonstrating an example of the display screen of the display of the broadcast receiving apparatus of 1st Embodiment. It is explanatory drawing for demonstrating the 1st additional information of the broadcast transmission / reception system of 1st Embodiment. It is explanatory drawing for demonstrating the 2nd additional information of the broadcast transmission / reception system of 1st Embodiment. It is a flowchart for demonstrating the flow of a process in the broadcast receiving apparatus of 1st Embodiment. It is an example of the list display screen of the target body in the broadcast receiving apparatus of 1st Embodiment. It is a flowchart for demonstrating the flow of the detection process of the target body which the detection circuit of the broadcast receiver of 1st Embodiment performs. It is a flowchart for demonstrating the flow of the tracking process of the target body which the tracking circuit of the broadcast receiver of 1st Embodiment performs. It is a schematic block diagram of the broadcast transmission / reception system which has the broadcast transmission apparatus and broadcast reception apparatus of 2nd Embodiment. It is a flowchart for demonstrating the flow of the detection process of the target body which the detection circuit of the broadcast receiver of 2nd Embodiment performs. It is a flowchart for demonstrating the flow of the tracking process of the target body which the tracking circuit of the broadcast receiver of 2nd Embodiment performs. It is explanatory drawing for demonstrating an example of the display screen of the display of the broadcast receiving apparatus of 3rd Embodiment. It is a flowchart for demonstrating the flow of the process in the broadcast receiving apparatus of 3rd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1B, 1C ... Broadcast transmission apparatus, 2, 2B, 2C ... Broadcast reception apparatus, 3, 3B, 3C ... Broadcast transmission / reception system, 5 ... Competition field, 12 ... TV camera A, 13 ... Synthesis circuit, 14 ... Transmission circuit , 15 ... 1st additional information processing circuit, 16 ... 2nd additional information processing circuit, 17 ... TV camera B, 18 ... TV camera C, 19 ... TV camera D, 21 ... Reception circuit, 22 ... Decoding circuit, 23 DESCRIPTION OF SYMBOLS ... Signal processing circuit, 24 ... Speaker, 25 ... Display, 25A ... Display screen, 26 ... List display circuit, 27 ... Target body selection device, 27A ... Cursor, 28 ... Detection circuit, 29 ... Tracking circuit, 30 ... Storage device, 31 ... Display control circuit, 32 ... Marker display circuit, 40 ... Marker, 42 ... Ball, 43 ... Player, 49 ... Main video display area, 50 ... Ball selection area, 51 ... Player selection area, A1 ... First addition Distribution, A2 ... second additional information, N ... threshold number, O1 ... object, O2 ... object, S1 ... main video signal

Claims (5)

Main video shooting means for shooting the main video and outputting the main video signal;
Additional information processing means for processing appearance information for identifying an object;
Synthesizing means for adding the appearance information processed by the additional information processing means as additional information to the main video signal;
A broadcast transmission apparatus comprising: a transmission unit configured to transmit a broadcast signal in which the additional information is added to the main video signal. Main video shooting means for shooting the main video and outputting the main video signal;
Auxiliary video shooting means for shooting auxiliary video and outputting auxiliary video signals;
First additional information processing means for processing appearance information for identifying an object and generating first additional information;
A second additional information processing means for processing the auxiliary video signal and the position information of the auxiliary video photographing means to generate second additional information;
The appearance information processed by the first additional information processing means and the second additional information processing means, the auxiliary video signal, and the position information of the auxiliary video photographing means are added as additional information to the main video signal. Combining means;
A broadcast transmission apparatus comprising: a transmission unit configured to transmit a broadcast signal in which the additional information is added to the main video signal. Main video photographing means for photographing a main video and outputting a main video signal, additional information processing means for processing appearance information for specifying an object, and the appearance information processed by the additional information processing means as additional information, Receiving means for receiving a broadcast signal from a broadcast transmitting apparatus, comprising: combining means for adding to the main video signal; and transmitting means for transmitting the broadcast signal with the additional information added to the main video signal;
Signal processing means for displaying a main video on a display means and processing the additional information from the broadcast signal received by the receiving means;
A selection means capable of selecting one of the objects that can be specified by the additional information;
Detecting means for detecting the object selected by the selecting means in the main video using the additional information;
A broadcast receiving apparatus comprising: marker display means for displaying a marker indicating the position of the object detected by the detection means in the main video displayed on the display means.   4. The broadcast receiving apparatus according to claim 3, further comprising a tracking unit that continuously detects the object in the main video detected by the detection unit.   A broadcast transmission / reception system comprising the broadcast transmission device according to claim 1 or 2 and the broadcast reception device according to claim 3 or 4.

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