JP2014131137A - Recording/reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording/reproducing device that makes it possible to efficiently view a recorded program.SOLUTION: A recording/reproducing device comprises: specifying means that specifies a genre of a recorded program on the basis of genre information included in an electronic program guide; extraction means that extracts an extraction target part of the recorded program using an extraction method corresponding to the genre specified by the specifying means; and processing means that executes processing for enabling reproduction of the extraction target part in response to a request to reproduce the extraction target part extracted by the extraction means.

Description

  The present invention relates to a recording / playback apparatus.

  2. Description of the Related Art Conventionally, some recording / playback apparatuses capable of receiving a television broadcast have a built-in storage medium (for example, an HDD), and can record by storing the television program in the storage medium. In recent years, the storage capacity of a storage medium built in a recording / playback apparatus has become larger, and many television programs can be recorded.

  On the other hand, it takes a lot of time to view a large amount of recorded programs. Depending on the contents of the recorded program, there is no need to view the entire program, and there are programs that only need to be able to view the desired scene, but if you do not know where the desired scene appears in the program, at least the desired scene will appear. It is necessary to watch the recorded program until it comes. Accordingly, when sufficient viewing time cannot be secured, there may be a problem that the number of recorded programs increases while the number of recorded recorded programs does not increase.

  Patent Document 1 discloses a recording apparatus that searches the audio level of the entire recording area and generates a digest version by generating tag information when audio exceeds a predetermined level. According to the recording apparatus, it is possible to reproduce only a scene whose audio level is equal to or higher than a predetermined level using tag information.

JP 2002-330390 A

  However, a scene where the sound level is higher than a predetermined level is not always a desired scene. Moreover, it is not appropriate to set a uniform predetermined level and compare it with the audio level even though the recorded program genres are different.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a recording / playback apparatus capable of efficiently viewing a recorded program.

  In order to achieve the above object, a recording / playback apparatus according to the present invention includes a specifying unit that specifies a genre of a recorded program based on genre information included in an electronic program guide, and an extraction method according to the genre specified by the specifying unit Extraction means for extracting the extraction target portion of the recorded program, and processing means for performing processing that enables reproduction of the extraction target portion in response to a reproduction request for the extraction target portion extracted by the extraction means. It is characterized by.

  In the recording / playback apparatus having the above-described configuration, it is desirable that the extraction unit extracts an extraction target portion of the recorded program by an extraction method according to the genre specified by the specifying unit and the program name information included in the electronic program guide. .

  Further, in the recording / reproducing apparatus having the above-described configuration, when the extraction target portion has not been extracted for the same program as the recorded program in the past, the extraction means uses the extraction method according to the genre specified by the specification means. An extraction method in which an extraction target portion of a recorded program is extracted and the extraction means is executed for the same program as the recorded program when the extraction target portion has been extracted for the same program as the recorded program in the past It is desirable to extract the extraction target portion of the recorded program based on the above.

  In the recording / playback apparatus configured as described above, it is preferable that the extraction unit extracts an extraction target portion based on one or more pieces of information among video information, audio information, and caption information of the recorded program.

  In the recording / reproducing apparatus having the above configuration, when the extraction unit extracts an extraction target portion based on the video information of the recorded program, the luminance information of the video included in the video information and the character information displayed in the video are displayed. It is desirable to extract the extraction target portion based on the included information.

  In the recording / reproducing apparatus having the above-described configuration, when the extraction unit extracts an extraction target portion based on the audio information of the recorded program, information including audio waveform information and / or audio frequency information included in the audio information It is desirable to extract the extraction target part based on the above.

  Further, in the recording / playback apparatus having the above configuration, when the extraction unit extracts the extraction target portion based on the caption information of the recorded program, the extraction is performed based on information including performer information and appearance time information included in the caption information. It is desirable to extract the target part.

  In the recording / playback apparatus having the above-described configuration, it is preferable that the processing unit performs a process of setting a chapter in the extraction target portion extracted by the extraction unit or a process of storing only the video related to the extraction target portion as the recording content. .

  According to the present invention, an extraction target portion, that is, a desired scene is extracted by an appropriate method according to the genre of a recorded program. Then, processing is performed so that the extracted portion to be extracted can be played back according to the user's request, so that the user can easily play back a desired scene for each of the recorded programs of various genres.

The figure which shows an example of a structure of a video recording / reproducing apparatus The 1st figure which shows an example of an electronic program guide (EPG) information 2nd figure which shows an example of an electronic program guide (EPG) information The flowchart which shows the process which the control part of the recording / reproducing apparatus of 1st Embodiment performs. Figure showing an example of the recording reservation setting screen 1st flowchart which shows the extraction process of the extraction object part which an extraction part performs The figure which shows the example of division of the display area The figure which shows an example of the image displayed on a display part The figure which shows an example of the numerical value / character possessed as a template First diagram showing the flow of template matching 2nd flowchart which shows the extraction process of the extraction object part which an extraction part performs The figure which shows an example of caption information The flowchart which shows the process which the control part of the video recording / reproducing apparatus of 2nd Embodiment performs. Second diagram showing the flow of template matching The flowchart which shows the process which the control part of the video recording / reproducing apparatus of 3rd Embodiment performs.

<First Embodiment>
The recording / playback apparatus of the present invention will be described below with reference to the drawings. The following embodiment shows an example of a recording / playback apparatus in order to embody the technical idea of the present invention, and is not intended to specify the present invention as the recording / playback apparatus. It is equally applicable to the apparatus of other embodiments within the scope of the claims.

  FIG. 1 is a diagram showing an example of the configuration of a recording / playback apparatus according to the present invention. FIG. 2 is a first diagram showing an example of electronic program guide (EPG) information. FIG. 3 is a second diagram showing an example of electronic program guide (EPG) information.

  The recording / playback apparatus 1 includes a tuner unit 2, a decoder unit 3, a storage unit 4, an operation unit 5, a display unit 6, and a control unit 7. The tuner unit 2 is a receiving means for receiving an output signal of an antenna (not shown) (hereinafter, “an antenna output signal” may be referred to as a “broadcast signal”). The tuner unit 2 amplifies and demodulates the broadcast signal and outputs it to the decoder unit 3. Here, information including content information of a television program and electronic program guide (EPG) information is multiplexed on the broadcast signal.

  The EPG information includes information such as the TV program guide of each broadcasting station and detailed contents of each TV program. An example of information included as detailed contents of each television program is shown in FIGS. As shown in FIG. 2 and FIG. 3, the detailed contents of each TV program include TV titles such as program title, genre, outline of broadcast contents, broadcast station, broadcast time (broadcast start time and broadcast end time), performer name, etc. Contains information related to.

  The genre information is classified into contents such as news / reports, dramas, movies, sports, music, variety, anime / special effects, etc., and one or more genres corresponding to the contents of the television program are selected from these. Is selected. By designating a genre of interest when the user makes a recording reservation, the recording / playback apparatus 1 can automatically record a television program belonging to that genre. That is, the user can reserve recording of a desired program without setting recording reservation for each program by designating a genre for recording.

  The broadcast station information is information indicating a broadcast station that is broadcasting the television program. The program name information is program name information set for the television program by the broadcast station.

  The decoder unit 3 separates the output signal from the tuner unit 2 into a video signal, an audio signal, and EPG information, and decodes them.

  The storage unit 4 is storage means for storing a recorded television program (recorded program). In the present embodiment, a storage medium incorporated in the recording / playback apparatus 1 is shown as the storage unit 4. However, instead of or in addition to this, a storage medium externally connected to the recording / playback apparatus 1 may be included. Good.

  The operation unit 5 is an operation means that is operated when using functions such as TV program channel selection, recording reservation, or changing the setting of the recording / playback apparatus 1. In the present embodiment, an operation panel provided in the main body of the recording / playback apparatus 1 is shown as the operation unit 5. However, instead of this, or in addition to this, a remote controller capable of infrared communication with the recording / playback apparatus 1 may be provided. Good.

  The display unit 6 is a display unit that displays a predetermined image / video when the operation unit 5 is operated. A recorded program, an electronic program guide, a setting screen for changing the settings of the recording / playback apparatus 1, data broadcasting, and the like stored in the storage unit 4 are displayed. In the present embodiment, a display unit (built-in) provided in the main body of the recording / playback device 1 is shown as the display unit 6, but instead of or in addition to this, a connection is made via an external terminal of the recording / playback device 1. An external display monitor (external display unit) may be included.

  The control unit 7 is control means for controlling the entire recording / playback apparatus 1. For example, a television program guide is created based on the EPG information input from the decoder unit 3. The control unit 7 includes a specifying unit 71, an extracting unit 72, and a processing unit 73. In the present embodiment, the recording / playback apparatus 1 includes one control unit 7, and the control unit 7 includes a specifying unit 71, an extracting unit 72, and a processing unit 73. However, the present invention is not limited to this. . The recording / playback apparatus 1 may include a plurality of control units.

  The specifying unit 71 is a specifying unit that specifies the genre of a recorded program set as a processing target by the processing unit 73 described later. As described above, the EPG information includes genre information of each television program. Therefore, the specifying unit 71 specifies the genre of the recorded program based on the genre information of the recorded program. For example, according to the EPG information shown in FIG. 2, the genre is specified as sports.

  The extraction unit 72 is an extraction unit that extracts an extraction target portion of a recorded program. Many TV programs are broadcast in over 30 minutes. However, there are cases where the user does not want to view the entire broadcast time due to various reasons such as viewing time. For example, if the genre of a recorded program is sports, there is a user who thinks that a scoring scene, a team or a player's play scene that he / she supports can be viewed. In addition, if the genre of the recorded program is music, there are users who think that it is only necessary to view the singing scene, the talk scene, and the appearance scene of the singer that they support.

  In the present embodiment, the extraction target portion is a scene (desired scene) that the user wants to view, and the extraction unit 72 extracts the extraction target portion from the entire program of the recorded program. The extraction unit 72 may extract the start position to the end position of the desired scene as the extraction target part, but extracts the start position of the extraction target part or the start position and the end position as the extraction target part. It is good as well. The setting of the extraction target part (setting of what kind of scene is to be extracted) may be determined in advance, or may be appropriately set by the user according to preference.

  For example, if the initial setting of the extraction target portion is “scoring scene” in a recorded program of a baseball game (genre is sport) in which A team and B team play, the scoring scene of A team and the scoring scene of B team are the extraction target portions. Extracted as On the other hand, when the user changes the setting of the extraction target portion to “Score scene of team A”, only the scoring scene of team A is extracted as the extraction target portion. A detailed method of extracting the extraction target portion by the extraction unit 72 will be described later.

  The processing unit 73 performs a process that enables the extraction target part to be reproduced in response to a reproduction request for the extraction target part extracted by the extraction unit 72 by the user. Details of the processing performed by the processing unit 73 will be described later.

  Hereinafter, the process executed by the control unit 7 will be described in detail. FIG. 4 is a flowchart showing processing executed by the control unit 7 of the recording / playback apparatus 1 according to the first embodiment. FIG. 5 is a diagram showing an example of a recording reservation setting screen displayed on the display unit 6.

  In step S01, when the recording reservation is set, the control unit 7 starts recording when the recording reservation start time (broadcast start time of the television program for which the recording reservation is set) comes. In step S02, the control unit 7 determines whether or not the recording of the television program that started the recording in step S01 has been completed (whether the broadcast end time of the television program has arrived). If recording has not ended (N in step S02), the process returns to step S02. If recording has ended (Y in step S02), the process proceeds to step S03.

  In the present embodiment, if the recording is not completed in step S02, the process after step S03 is not performed. However, the recording may be completed by the process of step S06 described later. Therefore, for example, the process of step S02 may be performed between the process of step S05 and the process of step S06.

  In step S03, the control unit 7 determines whether extraction of the extraction target portion is set for the recorded program. If extraction of the extraction target part is set (Y in step S03), the process proceeds to step S04, and if extraction of the extraction target part is not set, the process ends. For example, as shown in FIG. 5, it is possible to select whether or not to extract the extraction target portion in the setting item at the time of recording reservation, and when “extract” is selected by the user (FIG. The process proceeds to step S04, and the process ends when "Do not extract" is selected. Note that the recording / playback apparatus 1 may automatically extract the extraction target portion for all recorded programs, and in this case, the recording / playback apparatus 1 may not include this step.

  In step S04, the specifying unit 71 of the control unit 7 selects the genre of the recorded program (if the recording has not been completed, that is, if the step S02 is performed in the subsequent steps, the program being recorded, and the same in the subsequent steps). Identify. As described above, the genre information of the recorded program is included in the EPG information, and the specifying unit 71 acquires the genre information of the recorded program and specifies the genre of the recorded program.

  In step S05, the extraction unit 72 of the control unit 7 extracts the extraction target portion of the recorded program. In the following, the extraction method for extracting the extraction target portion by the extraction unit 72 will be described by taking the case where the genre of the recorded program is sports and the case of music as an example. it can.

<Extraction of extraction target part when recorded program genre is sport>
A method of extracting the extraction target part by the extraction unit 72 when the EPG information of the recorded program is the EPG information shown in FIG. 2 and the “scoring scene” is set to be extracted as the extraction target part will be described. FIG. 6 is a first flowchart showing the processing executed by the extraction unit 72 of the control unit 7 in step S04 of FIG. FIG. 7 is a diagram showing an example of division of the display area. FIG. 8 is a first diagram illustrating an example of an image displayed on the display unit. FIG. 9 is a diagram showing an example of numerical values / characters possessed as a template. FIG. 10 is a first diagram showing the flow of template matching.

  In step S <b> 101, the extraction unit 72 acquires genre information of the recorded program from the specifying unit 71. The genre information acquired in this flowchart is sports.

  In general, a television program that broadcasts a sports game is displayed almost always at a certain position so that the current score status can be immediately confirmed. In step S102, the extraction unit 72 specifies the position where the score is displayed on the screen. As a method of specifying the position of the score display, for example, the extraction unit 72 divides the display area of the screen into a plurality of areas (9 areas in FIG. 7) as shown in FIG. The dividing method is not particularly limited, but in the present embodiment, a case of dividing into a lattice shape will be described as an example.

  In FIG. 7, the numbers 1 to 9 are assigned for convenience to the respective areas of the display area divided into nine (hereinafter, “areas of the divided display areas” are also referred to as “division areas”). Is. In FIG. 8, regions corresponding to the divided regions in FIG. 7 may be described using the numbers assigned in FIG.

  In step S <b> 103, the extraction unit 72 calculates an image change amount for each of the divided regions 1 to 9. The change amount of the image is calculated by comparing the images displayed in the divided areas at two different time points (first time and second time after a predetermined time has elapsed from the first time).

  In step S <b> 104, the extraction unit 72 calculates the average luminance for each of the divided regions 1 to 9.

  In step S <b> 105, the extraction unit 72 selects one divided region serving as a reference for extracting the extraction target portion from the divided regions 1 to 9. In this step, the selection of the divided areas is performed as follows, for example.

  Generally, the score display is displayed at a position that does not interfere with the viewing of the game. In other words, it is not displayed in the area where the player's play video is displayed, but is often displayed superimposed on an object that is less relevant to watching the game, such as the wall (fence) or ground (ground) of the game venue. . In other words, the score display is often displayed at a position where the change amount of the image / video is small.

  In addition, when a score display is superimposed on an object that is not related to viewing (superimposed object), a color with a brightness that is significantly different from the brightness of the superimposed object is attached to the score display in order to improve the visibility of the score display. Often selected as the color to be used. Therefore, the average luminance of the divided areas where the score display is displayed is often significantly different from the average luminance of the other divided areas.

  Therefore, the extraction unit 72 uses a divided region that has a smaller image motion than the other divided regions and whose average luminance is significantly different from the average luminance of the other divided regions as a reference for extracting the extraction target portion. select. For example, when an image as shown in FIG. 8 is displayed on the display unit 6, the divided areas 1 to 6 and 8 are displayed by the player, and the amount of change in the image is large. Compared to this, only the ground image is displayed in the divided areas 7 and 9, and the change amount of the image is small.

  Next, when the luminances of the colors included in the images displayed in the divided areas 7 and 9 are compared, a ground image is mainly displayed in the divided area 7, and the average luminance of the divided area 7 is the divided areas 1 to 6 and 8. It is not much different from the average brightness. On the other hand, the divided area 9 is superimposed on the ground image and a score display or the like is displayed. As described above, the ground is a relatively low-luminance color such as brown, and is displayed with a high-luminance color to improve visibility such as a score display. Therefore, the average luminance of the divided areas 9 is greatly different from the average luminance of the divided areas 1 to 6 and 8.

  Therefore, the extraction unit 72 has a smaller image motion than the other divided areas, and a divided area serving as a reference for extracting the extraction target part of the divided area 9 whose average luminance is significantly different from the average luminance of the other divided areas. Choose as.

  In step S106, the extraction unit 72 determines whether or not the divided region selected in step S105 is a reference divided region for extracting the extraction target portion (whether the extraction target portion can be extracted in the divided region selected in step S105). Or not). That is, in step S105, one divided region is selected as a reference divided region for extracting the extraction target portion, but when the presence of a score display cannot be detected in the selected divided region (N in step S106). Returns to step S103, and if the presence of a score display is detected in the selected divided area (Y in step S106), the process proceeds to step S107. In this example, the divided area 9 is a divided area that serves as a reference for extracting the extraction target portion.

  The method for detecting the presence or absence of a score display in the divided region selected in step S105 is performed by template matching, for example. The score display is generally displayed by combining 0 to 9 numbers. In the case of baseball, “table”, “front”, “back”, and “back” are often displayed for displaying the attack time / defense time together with the score display. Therefore, as shown in FIG. 9, the extraction unit 72 has compatibility between these numerical values / characters possessed in advance as a template and the characters displayed in the numerical values / characters displayed in the divided area selected in step S105. Is recognized, it is determined that the presence of the score display has been detected in the selected divided region.

  On the other hand, when the extraction unit 72 does not recognize compatibility between the numerical value / character possessed in advance as a template and the character displayed in the numerical value / character displayed in the divided area selected in step S105, or If no numerical value / character is displayed in the divided area selected in step S105, it is determined that the presence of the score display could not be detected in the selected divided area.

  As shown in FIG. 10, the template matching sequentially checks compatibility with numerical values / characters possessed as a template, for example, sequentially from the character located at the upper left. As shown in FIG. 9, compatibility can be checked with high accuracy by possessing a plurality of font sizes for each numerical value / character as a template. Further, by having a plurality of fonts for each numerical value / character as a template, the compatibility check can be performed with higher accuracy.

  In the flowchart of FIG. 6, the process returns to step S103 when the divided area selected in step S105 is not a divided area serving as a reference for extracting the extraction target portion (N in step S106), but is not limited thereto. . For example, returning to step S102, the display area may be divided by a different method.

  It is also possible to return to step S104 and recalculate the average luminance of each divided region. Further, returning to step S105, among the plurality of divided regions (divided regions 7 and 9 in the above example) with a small image change amount, the unselected divided regions (divided region 7 in the above example) are sequentially selected in step S105. It may be selected as one divided region that serves as a reference for extracting the extraction target portion (for example, in order of increasing difference from the average luminance of other divided regions).

  In step S107, the extraction unit 72 extracts the extraction target portion with reference to the divided region determined as the reference division region for extracting the extraction target portion in step S106. Since the “scoring scene” is set to be extracted as the extraction target portion, the extraction unit 72 extracts the changed scene of the score display in the divided area 9 as the extraction target portion. When a numerical value other than the score display is displayed in the divided area (the numerical value for the number display in FIG. 8), the numerical value for the score display is specified, and when the numerical value is changed, it is used as the extraction target portion. Extract.

  The method for specifying the numerical value for displaying the score is not particularly limited, but in the example shown in FIG. 8, the numerical value arranged on the left and right with the “-” (hyphen) in between is specified as the numerical value for displaying the score. Then, the display position (coordinates) of these numerical values, the numerical values, the font size, and the font are stored, and when these numerical values are changed, they are extracted as extraction target portions.

<Extraction of extraction target part when recorded program genre is music>
About extraction method of extraction target part by extraction unit 72 when EPG information of recorded program is EPG information shown in FIG. 3 and “singer scene of singer □ ○” is set to be extracted as extraction target part explain. FIG. 11 is a second flowchart showing the process executed by the extraction unit 72 of the control unit 7 in step S04 of FIG. FIG. 12 is a diagram illustrating an example of caption information.

  In step S <b> 111, the extraction unit 72 acquires genre information of the recorded program from the specifying unit 71. The genre information acquired in this flowchart is music.

  The appearance scene of a singer in a music program generally includes a talk scene that broadcasts a conversation between a presenter and a singer, and a singing scene by a singer. Since the singing scene is often broadcast after the talk scene, the extraction unit 72 first specifies the talk scene of the singer □ ○.

  In step S112, the extraction unit 72 specifies the talk scene of the singer □ ○. The talk scene may be specified by dividing the display area and matching with the name of the singer □ ○ in the divided area as in the case where the genre is sports as described above, but the singer's name is displayed. In this example, the singer's talk scene is specified based on the caption information.

  The broadcast signal includes closed caption information in addition to the above-described television program content information and EPG information. The closed caption is subtitle information indicating the name of the speaker and the content of the speech that can be displayed on the display unit 6 in conjunction with the video so that a hearing-impaired person or a hearing-impaired person can enjoy a television program. Hereinafter, closed caption information is also referred to as caption information.

  As shown in FIG. 12, the caption information includes the name of the speaker and the content of the speech and information indicating the speech time. Therefore, the extraction unit 72 specifies the utterance time of the singer □ ○ based on the subtitle information, and specifies that the time around that time is the talk scene of the singer □□. In this example, the first speech time of the singer □ ○ is past 19:21:15.

  In step S113, the extraction unit 72 specifies the singing scene of the singer □ ○. The singing scene may be specified based on the subtitle information if the subtitle information includes a symbol indicating that music such as “♪” is being broadcast. When a singing scene cannot be specified only by subtitle information, a singing scene is specified based on video information or audio information.

  When a singing scene is specified based on video information, the display area is divided into a plurality of areas as described above. In the singing scene, the movement of the singer is larger than that in the talk scene, and the brightness varies greatly due to the production using various lights. Therefore, the extraction unit 72 specifies a singing scene based on the amount of change in image and the amount of change in luminance in the divided areas.

  When specifying a singing scene based on audio | voice information, a singing scene is specified based on the waveform and frequency of an audio | voice. That is, if the waveform and frequency of a sound at a predetermined time point are a waveform and a frequency corresponding to a sound and a singing sound emitted from an instrument, the scene is specified as a singing scene.

  In this embodiment, the singer scene is specified after specifying the talk scene, but the present invention is not limited to this. For example, if the subtitle information includes a singer name, a song name and a symbol indicating that music such as “♪” is being broadcast, the singing scene may be specified without specifying the talk scene. Moreover, when memorize | storing the image of singer □ ○, it is good also as specifying the singing scene of singer □ ○ by performing image matching processing in a plurality of singing scenes.

  In step S114, the extraction unit 72 extracts the singing scene specified in step S113 as an extraction target portion.

  In the above, the case where the genre of the recorded program is sports or music has been described as an example. However, if the extraction target part extraction method is set for each genre, the extraction target part is extracted even in other genres. can do. For example, when the genre of the recorded program is news / report, the extraction target portion may be set to the weather corner or the interview appearance corner of a specific entertainer. Hereinafter, returning to the flowchart of FIG. 4, the description of the processing executed by the control unit 7 is continued.

  In step S06, the processing unit 73 of the control unit 7 performs processing that enables the extraction target part to be reproduced in response to a request to reproduce the extraction target part with respect to the extraction target part extracted by the extraction unit 72 in step S05. As processing performed by the processing unit 73, for example, a chapter is set at a position before a predetermined time (several seconds to several minutes) from the extraction target portion. By setting the chapter setting point a predetermined time before the extraction target portion, even if there is an error between the extraction target portion extracted by the extraction unit 72 and the actual extraction target portion, the extraction target portion can be surely viewed. be able to.

  In addition, when setting a chapter, a display indicating what kind of content is to be extracted is attached to the chapter, and when a plurality of chapters are set in a recorded program, the user can select which chapter. You can choose whether to watch from. As the display attached to the chapter, for example, “two-time back scoring scene” and “□ ○ singing scene” are exemplified.

  As other processing performed by the processing unit 73, editing is performed so as to leave only the video related to the extraction target portion. That is, in the above example, only the scoring scene and □ ○ singing scene are left and the other parts are deleted. Thereby, when the user requests reproduction, the reproduction of the extraction target portion is automatically disclosed.

  The video related to the extraction target portion is a video including at least the extraction target portion, and may include a video including images before and after the extraction target portion that is continuous with the extraction target portion in addition to the extraction target portion. In the latter case, for example, in a sports program, before the score display is changed, there is a play causing the change, so that the play video is also included.

  In the music program, the video from when the singing is started until the singing is finished is left as a video related to the extraction target portion. In the singing scene, the start point and end point of the singing scene can be specified based on the video information and the audio information by the method described above, and the video including the video from the start point to the end point of the singing scene is left. In general, since a singing scene of a television broadcast is often held within a time of about 5 minutes, a video including a video until a predetermined time (about 5 minutes) has passed since the start of the singing scene is extracted. It may be left as a video related to.

  According to the present embodiment, the extraction target portion is extracted by an appropriate method according to the genre of the recorded program. Then, processing is performed so that the extracted portion to be extracted can be played back according to the user's request, so that the user can easily play back a desired scene for each of the recorded programs of various genres.

  Further, extraction of the extraction target portion is executed based on one or more information among the video information, audio information, and caption information of the recorded program. That is, since the extraction target portion can be extracted based on the information included in the broadcast signal, it can be easily realized by changing / updating the firmware.

  Note that the extraction unit 72 calculates the image change amount and the average luminance for the divided regions 1 to 9 in steps S103 and S104 described above. However, the image change amount and the average luminance may not be calculated for all the divided regions. Alternatively, the image change amount and the average luminance may be calculated for some of the divided areas, and one divided area serving as a reference for extracting the extraction target portion may be selected in step S105.

  For example, in the sports program, the score display is displayed at a position that does not interfere with the viewing of the game as described above. In other words, it is rarely displayed at the center of the screen or the periphery thereof, and is generally displayed at any of the four corners of the screen. Therefore, the extraction unit 72 may calculate an image change amount and average luminance for each of the divided areas 1, 3, 7, and 9 and select one divided area as a reference for extracting an extraction target portion.

Second Embodiment
In the first embodiment, the genre of the recorded program is specified in step S04, and the extraction target part is extracted by an appropriate extraction target part extraction method according to the genre. The genre is a television program classified by content as described above, but the specific program content is not clear unless it is further classified (the genre is further classified as "sub-genre"). There are also things. For example, the genre of sports includes various competitions, and specific competition names such as whether the TV program is a TV program related to baseball or a TV program related to soccer are not included in the genre information.

  Even if the “scoring scene” is extracted as the extraction target portion, the method of displaying the score and the position of the score display in the display area differ depending on the competition. Although the extraction target part can be extracted without specifying the competition name by performing the processing as in the first embodiment, if the competition name is specified, extraction of the extraction target part suitable for the competition is performed. Processing efficiency can be improved by performing processing.

  Therefore, in the present embodiment, the subgenre is specified based on the genre information and the program name information included in the EPG information, and the extraction target part is extracted by an appropriate extraction target part extraction method according to the subgenre.

  FIG. 13 is a flowchart showing processing executed by the control unit 7 of the recording / playback apparatus 1 of the second embodiment. In this embodiment, the case where the genre of the recorded program is sports will be described as an example. Note that steps S21 to S24 and S27 in the flowchart in FIG. 13 are the same as steps S01 to S04 and S06 in the flowchart in FIG.

  In step S25, the control unit 7 specifies a sub-genre of the recorded program. Specifically, the sub-genre is specified based on the genre information of the recorded program specified in step S24 and the program name information included in the EPG information. As shown in FIG. 2, the program name information is “Professional Baseball Relay A-B Battle”, and the characters “baseball” are included in the program name. Therefore, the control unit 7 specifies that the sub-genre of the recorded program is “baseball”.

  In step S26, the extraction unit 72 of the control unit 7 extracts an extraction target portion of the recorded program. The extraction method of the extraction target portion is the same as that in the first embodiment (see FIGS. 6 to 9). However, in each step of the flowchart of FIG. 6, the extraction unit 72 performs processing suitable for the sub-genre “baseball”.

  For example, when determining whether or not the divided region selected in step S105 in step S106 in the flowchart of FIG. 6 is a divided region serving as a reference for extracting the extraction target portion, a process suitable for the subgenre “baseball”. I do.

  In other words, in the genre “Sports”, the score display is represented by numerical values, but the numerical values displayed in the display area are not limited to the score display, and information that is not related to the score display, such as the back number when introducing players, is displayed. Often used to show. On the other hand, in “baseball”, characters that are not normally used in other games and other information such as “front” and “back” are used for the number of times displayed together with the score display. Therefore, the extracting unit 72 performs template matching as shown in FIG. 14 using high-precision characters by using characteristic characters that are used only in the specified sub-genre or only a small number of sub-genres including the specified sub-genre. Judgment can be performed efficiently.

  According to the present embodiment, the same effects as those of the first embodiment can be obtained. In addition, the subgenre of the recorded program can be specified based on the genre information and the program name information, and the extraction target part can be extracted with high accuracy and efficiency by an appropriate method according to the subgenre.

<Third Embodiment>
In the first embodiment and the second embodiment, by specifying the genre or sub-genre, the extraction target portion is extracted according to the genre and sub-genre. However, even in the sub-genre “baseball”, for example, where the score display is displayed in the display area differs depending on the broadcasting station, and as a reference for extracting the extraction target portion as shown in the flowchart of FIG. The area needs to be specified.

  On the other hand, if the recorded program is the same program as the past recorded program from which the extraction target portion is extracted, it is considered that the divided area serving as a reference for extracting the extraction target portion is also the same as the past recorded program. Therefore, in this embodiment, when the recorded program is the same program as the past recorded program from which the extraction target portion is extracted, the extraction target portion is extracted based on the past extraction target portion extraction processing.

  FIG. 15 is a flowchart illustrating processing executed by the control unit 7 of the recording / playback apparatus 1 according to the third embodiment. In this embodiment, the case where the genre of the recorded program is sports will be described as an example. Note that steps S41 to S43 in the flowchart in FIG. 15 are the same as steps S01 to 03 in the flowchart in FIG.

  In step S44, the control unit 7 determines whether or not the recorded program is the same program as the recorded program from which the extraction target portion has been extracted in the past. If it is the same program as the recorded program from which the extraction target portion has been extracted (Y in Step S44), the process proceeds to Step S45, and if it is not the same program as the recorded program from which the extraction target portion has been extracted in the past (N in Step S44) ) Proceed to step S46. Steps S46 to S49 are the same as steps S24 to S27 in the flowchart of FIG.

  Whether the recorded program and the recorded program from which the extraction target portion has been extracted in the past is the same program is determined based on the program name information included in the EPG information. When the program title information includes main title information and subtitle information, it is desirable to compare only the main title information.

  For example, in the EPG information shown in FIG. 2, the program name is “Professional Baseball Relay A-B Battle”, but the main title “Sub-title“ A-B Battle ”is changed according to the battle team. Is. In such a case, it is determined whether or not the program is the same based on whether or not the main title “professional baseball broadcast” matches.

  The control unit 7 may further determine the identity of the program based on the broadcast station information. That is, the program name is often given a name that suggests the contents of the television program, and in the case of a program that relays professional baseball, there is a possibility that a plurality of broadcasting stations may use “professional baseball relay” as the main title. Therefore, it is possible to determine the identity of the program with higher accuracy by determining that the recorded program is the same program when the program name and the broadcasting station match.

  In step S45, the extraction unit 72 of the control unit 7 extracts the extraction target portion of the recorded program. At that time, the extraction target portion is extracted based on the extraction method when the extraction target portion is extracted in the same program in the past. For example, in the same recorded program from which the extraction target part has been extracted in the past, when it is determined that the divided area 6 shown in FIG. 7 is a divided area serving as a reference for extracting the extraction target part, The extraction unit 72 omits the processing of steps S101 to SS106 in the flowchart of FIG. 6, and extracts the extraction target portion with reference to the divided region 6 (step S107).

  According to the present embodiment, the same effects as those of the first and second embodiments can be obtained. In addition, when extracting the extraction target part for the same recorded program as the recorded program from which the extraction target part has been extracted in the past, the extraction target part is extracted based on the past extraction method, so that the extraction target part is efficiently extracted Can do.

DESCRIPTION OF SYMBOLS 1 Recording / reproducing apparatus 2 Tuner part 3 Decoder part 4 Memory | storage part 5 Operation part 6 Display part 7 Control part 71 Identification part 72 Extraction part 73 Processing part

Claims (8)

A specifying means for specifying the genre of the recorded program based on the genre information included in the electronic program guide;
Extraction means for extracting an extraction target portion of the recorded program by an extraction method according to the genre identified by the identification means;
Processing means for performing processing that enables reproduction of the extraction target portion in response to a reproduction request for the extraction target portion extracted by the extraction means;
A recording / playback apparatus comprising:   The recording / reproducing apparatus according to claim 1, wherein the extraction unit extracts an extraction target portion of the recorded program by an extraction method according to the genre specified by the specifying unit and program name information included in the electronic program guide.   When the extraction target portion has not been extracted for the same program as the recorded program in the past, the extraction means extracts the extraction target portion of the recorded program by an extraction method according to the genre specified by the specifying means. When the extraction target portion has been extracted for the same program as the recorded program in the past, the extraction means extracts the recorded program based on the extraction method executed for the same program as the recorded program. The recording / reproducing apparatus according to claim 1, wherein a part is extracted.   The recording / reproducing apparatus according to any one of claims 1 to 3, wherein the extraction unit extracts an extraction target portion based on one or more pieces of information among video information, audio information, and caption information of the recorded program.   When the extraction means extracts the extraction target portion based on the video information of the recorded program, the extraction portion is extracted based on the information including the luminance information of the video included in the video information and the character information displayed in the video. The recording / playback apparatus according to claim 4, wherein the recording / playback apparatus extracts.   When the extraction means extracts the extraction target part based on the audio information of the recorded program, the extraction target part is extracted based on information including audio waveform information and / or audio frequency information included in the audio information. 6. The recording / reproducing apparatus according to claim 4 or 5.   The extraction target portion is extracted based on information including performer information and appearance time information included in the caption information when the extraction unit extracts the extraction target portion based on the caption information of the recorded program. The recording / reproducing apparatus of any one of Claim 6.   The said processing means performs the process which sets the chapter to the extraction object part extracted by the said extraction means, or the process which preserve | saves only the video relevant to an extraction object part as video recording content. The recording / reproducing apparatus described in 1.