JP2006187034A - Apparatus, method and program for presenting video and supporting change of displaying method of video objects according to user preference - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video presenting apparatus, a video presenting method and its program, which directly change the setting of user preference, without suspending viewing of video. <P>SOLUTION: The video presenting apparatus, which presents video objects with video, includes: a storage means for storing the user preference having preferred items; a display method determining means for determining the display method, collating data items with the preferred items; a presentation control means for controlling the presentation of the video objects according to the display method; a video objects selecting means for detecting selecting instructions, given by a user for the presented image objects during presentation of the video and for selecting; and a preference changing means for changing, referring to the user preference using the data item of the image object selected, the corresponding preferred item so as to change the display method. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to video presentation, and more particularly, to a video presentation device, a video presentation method, and a program that can change a user's “preference” (referred to as “preference”) that is referred to in display or non-display control of a video object.

  Conventionally, a technique for describing and using a meaningful part (hereinafter referred to as a “video object”) such as a person or an object in a moving image as a separate unit from the entire video has been developed. For example, MPEG-4 (Motion Picture Experts Group Phase 4) is a video compression method standardized by ISO (International Organization for Standardization), and AV objects that are standardized in this are only humans and objects in the video. They are encoded separately. If an MPEG-4 AV object is used, the display method can be controlled on a video object basis, for example, only the video object of a person encoded with the AV object is hidden. However, although MPEG-4 stipulates encoding of video objects, it does not stipulate use of video objects.

  MPEG-7 (Motion Picture Experts Group phase 7) is a video metadata description system standardized by ISO, and Spatial-Temporal Locator (STL) defined in MPEG-7 is related to the arrangement of video objects in the space-time. Is. This MPEG-7 STL can also control the display method in units of video objects. Specifically, for example, display method control such as hiding a certain person image in a video by applying a mosaic is exemplified. However, although the MPEG-7 STL can describe the arrangement of video objects in space and time, this alone does not mean that the display method of the described video object can be controlled.

  Regarding the use of a video object, there is Patent Document 1 below as a conventional technique for controlling a display method of a video object according to a user's preference. In the prior art described in Patent Document 1, a user who views a video can set a profile (corresponding to “preference”), and a video object is dynamically changed to another video according to the profile. It replaces the object. The profile includes data representing the user's own "preference", "location", etc., and the settings can be freely changed.

  Here, when a certain video object is mistakenly replaced as being unfavorable for the user, it is necessary to correct the setting contents of the profile so as to prevent erroneous replacement by correcting this. In this case, a profile setting screen for the user to make corrections is activated, but viewing of the video must be interrupted while working on the screen. Therefore, there is a technical problem in terms of improving operational comfort. Normally, multiple user profiles can be set, and when the process of determining replacement video objects from multiple user profiles is particularly complicated, the desired video can be changed by changing which user profile element. It is difficult for a user to predict whether an object can be replaced.

  As another conventional technique for controlling the display method of the video object according to the user preference, there is Patent Document 2 below. In this case, the video object is painted in a circle, for example, so that it cannot be seen by the user, and the display and non-display of the video object can be controlled by setting the user's preferences and things that the user does not want to see. Similarly in this prior art, if a video object that the user does not want to view is displayed by mistake, the user must stop watching the video and manually set the preference again. It is also difficult to change the preferences as the user intends while predicting the change result.

Further, as a conventional technique for controlling the display method according to the user preference for each scene, there is Patent Document 3 below. In this method, scene attributes and user preferences are compared, and scenes are rearranged and digests are created based on the results. Users view programs that have previously removed unpleasant scenes. can do. However, in this example, if a scene that the user does not want to see is reproduced in error, the viewing of the program must still be interrupted in order to edit the user preferences. It is also difficult for the user himself to determine a change in user preferences that can remove only scenes that the user does not want to see from the program.
JP 2001-359013 A JP 2000-49847 A Japanese Patent No. 3250509

  An object of the present invention is to provide a video presentation device, a video presentation method, and a program capable of directly setting and changing user preferences referred to in video object presentation control without interrupting video viewing. .

  A video presentation apparatus according to an embodiment of the present invention is a video presentation apparatus that presents a video and a video object having a data item that describes at least a part of the video, and includes preference items. Preference storage means for storing user preferences; display method determination means for determining a display method of the video object in light of the data item in the preference item; and controlling presentation of the video object according to the display method Presentation control means, video object selection means for selecting the video object by detecting a selection instruction given by the user to the video object presented together with the video during presentation of the video, and the video object Data of the video object selected by the selection means A preference changing unit that refers to the user preference using an item and changes the corresponding preference item so that the display method changes, and the preference changing unit includes other video being presented. The preference item to be changed is determined so as to minimize the influence on the display state of the object.

  According to the present invention, it is possible to provide a video presenting apparatus, a video presenting method, and a program that can directly set and change user preferences referred to in video object presentation control without interrupting video viewing.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of the embodiment, for example, a moving image displayed on a television or the like is referred to as a “video”, and a meaningful portion such as a person or an object in the video is described as a unit separate from the entire video. It is called “object”. The video object may be a partial image sequence, or may be metadata in which a part in the video is represented by, for example, coordinate values. Here, the latter metadata will be described.

(First embodiment)
FIG. 1 is a schematic configuration diagram of a video presentation apparatus according to the first embodiment of the present invention. This apparatus has a basic function of presenting a video object to display or hide a video object according to user preferences, and further includes a function for correcting a video object display method. A video receiving unit 100 that receives a video signal L100 including a video object such as broadcast and outputs the video data L101 and video object data L102 that is metadata related to the video object; and stores the video object data L102 in units of frames. The video object storage unit 101 that outputs the video object data L103, the preference storage unit 103 that stores user preferences, the video object data L103 in units of frames, and the preference data L104 are referred to. Then, an object display method determination unit 102 that determines which video object is to be hidden, and a display unit 104 that inputs video data L101 and video object data L105 in frame units including display method designation and presents them to the user. And an object selection unit 105 that selects a video object whose user wants to change the display method, and a preference storage unit that changes the display method of the video object selected by the object selection unit 105 when the video object selection signal L106 is input. And a preference change unit 106 that changes the preference stored in 103 by a preference change instruction signal L107.

  FIG. 2 is a diagram illustrating an appearance of the video presenting apparatus according to the present embodiment. An antenna 201 for receiving the video signal L100 is disposed at the top of the casing 200 of the present apparatus, and a presentation unit 104 that presents an image to the user is disposed at the front of the casing 200. , An object selection unit 105 for the user to select a video object is arranged. The presentation unit 104 is composed of, for example, a liquid crystal display, and the object selection unit 105 is composed of, for example, a pressure-sensitive touch panel and its control circuit. The pressure-sensitive touch panel is preferably in close contact so as to cover part or all of the screen of the liquid crystal display. The pressure-sensitive touch panel is divided into a number of areas. When the user applies pressure to the desired divided area with a finger or the like, the control circuit detects this and generates a selection signal, which is displayed at the corresponding position on the liquid crystal display screen. The selected video object or the like is selected.

  FIG. 3A shows an example of a video signal L100 including a video object. In FIG. 3A, video objects 301, 302, 303, and 304 are overwritten and displayed on the background video 300. The video object 301 represents an insect, the video object 302 represents a sea snake, the video object 303 represents a large fish, and the video object 304 represents a small fish. In FIG. 3B, the insect video object 301 is overwritten by the insect fill figure 305, and the viewer cannot understand the mode. At this time, the display state of the insect video object 301 is “non-display”. In addition to this, FIG. 3C shows a state in which the sea snake video object 302 is overwritten by the sea snake fill figure 306 and is not displayed.

  Thereafter, the video shown in FIG. 3 (a) is received, and the display shown in FIG. 3 (b) is obtained according to the set preferences. This is because the user does not want to see the sea snake video object 302. A case will be described in which is changed to non-display and corrected as shown in FIG. This is called “changing user preferences”.

  The video receiving unit 100 includes, for example, a digital television tuner and a metadata separation circuit, and separates the video signal L100 received by the digital television tuner into video data L101 and video object data L102 by the metadata separation circuit. Here, it is assumed that video data and metadata are multiplexed in the video signal L100, which is a digital television broadcast signal, and the metadata is stored, for example, in the ARIB STD-B32 section format. The video object data L102 is received before the video object appears, and the video receiving unit 100 receives the video data at a cycle of 30 frames per second. The video object data L102 includes graphic information indicating where the video object is displayed on the screen.

  The video object storage unit 101 is composed of, for example, a hard disk, stores video object data L102 in units of objects as shown in FIG. 4, and stores the video object data L102 in units of frames as shown in FIG. And output in synchronization with the video data L101. Among the video objects in FIG. 4, shaded objects represent video objects that appear in the currently displayed frame.

  FIG. 4 shows an example of the video object data L102 stored in the video object storage unit 101. Here, the video object data L102 has a plurality of data items, that is, a video object ID 400, an appearance time 401, an disappearance time 402, a graphic information sequence 403, a rating 404, and a name 405. Data L102 is stored as a character string in a table format in the order of appearance time 401. In this embodiment, one rating 404 is designated for one video object. The video object storage unit 101 deletes data that has already disappeared, and stores newly input data in the order of IDs.

  The video object ID 400 is a unique identifier in the video (program), and there is no video object having the same ID at the same time. The appearance time 401 represents the time when the video object appears in the video, and the disappearance time 402 represents the time when the video object disappears in the video. The graphic information column 403 is information regarding an ellipse surrounding the video object, and is represented by a data column including a center point (x, y), a major axis r1, a minor axis r2, and an inclination s with reference to the x axis. The data string stores the position of the video object at a cycle of 1 second. The rating 404 is character string data that describes a video object such as “bad creature” and “dangerous creature”. A name 405 is a name of a video object such as “sea snake” or “insect”. In the case of a video object to which no rating is added, a NULL character string is stored in this field.

  FIG. 5 shows an example of the frame-based video object data L103. The video object data L103 includes a video object ID 500, a rating 501, a name 502, and graphic information 503. The graphic information 503 indicates the position of the video object in the frame, and the graphic information 503 of the corresponding frame is obtained by linear interpolation from the graphic information sequence. The video object data L103 in units of frames is output at a timing when the video receiving unit 100 outputs video data L101 for one frame.

  The preference storage unit 103 is configured by, for example, a hard disk, and the user's preference whether to display or hide this video object for a rating such as “bad creature” or “dangerous creature” added to the video object, for example. Memorize the reference.

  FIG. 6 shows an example of the preference stored in the preference storage unit 103. The preference displays the user's preference as a rating 600 and displays or hides the video object corresponding to the rating 600. It is stored in a table format composed of display settings 601 indicating such. For example, in the display setting 602, dangerous creatures are set to “display”, and in the setting 603, “uncomfortable creatures” are set to “non-display”.

  The object display method determination unit 102 displays which video object to display by matching the rating information included in the frame-based video object data L103 with the preference data L104 stored in the preference storage unit 103. It decides whether or not to hide the video object, and outputs video object data L105 for each frame including designation of the display method.

  FIG. 7 shows an example of the frame-based video object data L105 including the designation of the display method. The display setting 700 is added to the frame-based video object data item shown in FIG. As for the display setting of each video object, when the object display method determining unit 102 receives the video object data L103 in units of frames shown in FIG. 5, the display setting of each video object is set according to the preference shown in FIG. It is obtained by checking whether it is set. For example, the rating of the sea snake video object is “dangerous creature”, which is set to “display” according to the preference, so the display setting 701 is determined to be “display”. Since “unpleasant creature” is set to “non-display”, the display setting 700 is determined to be “non-display”.

  The presenting unit 104 is composed of, for example, a liquid crystal display, receives video data L101 and video object data L105 in units of frames including designation of a display method, and video set to “non-display” in the display setting 700 of the L105. The object is filled with an ellipse determined by graphic information and then displayed on the display.

  FIG. 3B shows a screen when the frame-based video object data L105 including the display method designation shown in FIG. 7 is received, and the insect video object 301 is overwritten with the insect fill figure 305. I can't see it.

  Next, a user preference changing function which is one of the feature points of the present embodiment will be described. This user preference changing function is capable of directly changing the setting of a user preference referred to in video object presentation control without interrupting video viewing.

  FIG. 8 shows how the user selects a video object by the object selection unit 105. The object selection unit 105 includes, for example, a pressure-sensitive touch panel as shown in FIG. 2, and when the user presses a point on the pressure-sensitive touch panel, the pressed point among all the video objects on the screen regardless of the display state. Is selected in the area. Here, the area information of the video object is defined by graphic information added in advance to each video object, and is, for example, from an ellipse (indicated by a dotted line in FIG. 8) that roughly represents the area of the video object. Become. The example of FIG. 8 is a case where the user presses a point 800, for example. Since the point 800 is included in the area of the video object 302, this video object 302, that is, a sea snake is selected.

  When selecting the video object, the object selection unit 105 refers to the data of the selected video object in the frame-based video object data L105 including designation of the display method, and obtains only the rating data among the same data. The result is output to the preference changing unit 106. The data corresponding to the selected video object 302 (see FIG. 8) is data 701 in FIG. 7, and the “dangerous creature” rating is output to the preference changing unit 106. Note that if no rating is set for the selected video object, the preference changing unit 106 does nothing.

  The preference change unit 106 refers to the rating of the selected video object, and among the preferences stored in the preference storage unit 103, if the display setting of the corresponding rating is “display”, “not display” If it is “Hide”, change it to “Show”. In this example, since the rating of the selected video object data 701 is “dangerous creature” as shown in FIG. 7, the preference changing unit 106 selects “dangerous creature” among the preferences shown in FIG. The display setting 602 is changed from “display” to “non-display” as indicated by 900 in FIG.

  The processing from when the user designates the video object until the preference changing unit 106 changes the preference is performed without interrupting the viewing and is completed before the video presenting apparatus performs the display processing of the next frame. Shall. Therefore, the video presenting apparatus can perform display processing of the next frame using the changed preference, so that the video object 302 of the sea snake which is a “dangerous creature” is immediately displayed in FIG. It will be hidden.

  FIG. 10 is a flowchart showing a processing procedure for realizing a basic video presentation function provided in the video presentation apparatus of the present embodiment. First, the video receiving unit 100 receives the video signal L100 and separates it into video data L101 and video object data L102 (step S1000), and the video object storage unit 101 stores the video object data L102 and the video object data L103 for each frame. (Step S1001), the object display method determination unit 102 determines the display method of the video object L103 in units of frames according to the preferences stored in the preference storage unit 103 (step S1002), and the presentation unit 104 Synthesizes the video data L101 and the video object data L105 for each frame including the designation of the display method, and displays them on the screen (step S1003).

  FIG. 11 is a flowchart showing a processing procedure for realizing the preference changing function according to the feature of the present embodiment. This processing procedure operates in parallel with the processing procedure shown in FIG. First, the object selection unit 105 detects whether or not the pressure-sensitive touch panel has been pressed by the user (step S1100). Step S1100 is repeated until the touch panel is pressed. If the touch panel is pressed, the process advances to step S1101, and the object selection unit 105 detects the pressed coordinate value, and the video object closest to the coordinate value from the frame-based video object L105 including designation of the display method. Is selected (step 1101). Next, when the display setting of the rating of the selected video object among the preferences stored in the preference storage unit 103 is “display”, the preference change unit 106 displays “not display” or “not display”. In this case, the display is changed to “display” (step S1102).

  As described above, according to the video presentation apparatus according to the first embodiment of the present invention, the user's preference referred to in video object presentation control can be directly changed without interrupting video viewing. it can. Note that the processing procedures shown in FIGS. 10 and 11 and the like can also be realized as a program for causing a computer to execute the processing procedures.

  Hereinafter, various modifications of the first embodiment will be described.

  In the configuration of the first embodiment, the video receiving unit 100 has been described as receiving the video signal L100 including the video data L101 and the video object data L102. However, the video receiving unit 100 receives the video data L101 and the video object L102 separately. You may do it. For example, the video data L101 may be received by broadcasting, and the video object data L102 may be downloaded via the Internet. Alternatively, the video data L101 and the video object data L102 may be read from a DVD (Digital Versatile Disc).

  Although the case where only one rating is added to one video object has been described, a plurality of ratings may be added. In this case, the object display method determination unit 102 hides the video object if at least one non-display rating is added. FIG. 12 shows an example of video object data in units of frames including a display method in the case where a plurality of ratings are added to a single video object. The sea snake video object includes “dangerous creature” and “aquatic animal”. These two ratings are added. With reference to the preferences shown in FIG. 9 for each rating, since the display setting is “display”, the display setting of the sea snake video object is “display”. If the “dangerous creature” is set to “non-display” and the “aquatic animal” is set to “display”, the display setting of the sea snake video object is “non-display”. In the first embodiment, since only one rating is added to one video object, the preference changing unit 106 can uniquely identify the preference item to be changed. However, a plurality of ratings are added. If so, the preference setting may be changed so that at least the display method of the video object designated by the user is changed. For example, when the sea snake video object is selected from the video objects shown in FIG. 12 in the preference setting shown in FIG. 6, the display setting of the video object is changed from “display” to “non-display”. To change the preference setting of the rating of either “dangerous creatures” or “aquatic animals”, it may be changed to “hidden”. Conversely, to change a sea snake video object from “hidden” to “display”, if both ratings are set to “hidden”, both screens are displayed to display the sea snake video object. Change the preference setting corresponding to the rating to “Display”.

  In the example of FIG. 12, the rating of “Aquatic animals” is added to “Big fish” and “Small fish”. When the preference setting of “Aquatic animals” is set to “Hide”, these users select them. Even video objects that are not displayed are hidden. Therefore, when there are many preference candidates to be changed, the preference changing unit 106 identifies candidates so that the display state of the video object being presented is not changed as much as possible as a result of the preference setting change. Also good. For example, in the example of FIG. 12, the preference changing unit 106 selects “dangerous creature” instead of “aquatic animal”. Thereby, it can be prevented that a certain preference change has an undesired influence.

Note that, when a plurality of ratings are added to the video object, the process of changing the display state of the video object can be formulated as follows. First, among the video objects displayed on the screen, the i-th youngest ID is D _i , and the rating added to this video object corresponds to each item in the rating list shown in FIG. , if not applicable, expressed in 0, this is the row vector m _i. For example, the rating of the video object indicated by 1201 in FIG. 12 can be expressed as follows.

Similarly, the user preference is expressed as 1 when each item of the rating shown in FIG. 6 is set to be non-displayed, and when it is not set as 0, this is set as a column vector p. For example, the preferences of FIG. 6 can be expressed as follows:

_{Assuming that} the display state of D _i is d _i , d = 0 represents non-display, and d ≠ 0 represents the state of matching, d = mp can be used for the matching operation. A matrix M representing metadata of video objects when there are n such video objects can be expressed as follows.

Therefore, the matching result d of n video objects can be expressed as follows.

For example, the display state of the video object in FIG. 12 can be expressed as follows.

  Here, if the user desires d ′ different from the matching result d, p may be replaced with a user preference p ′ that satisfies (Equation 1). The simplest method for obtaining p ′ is to calculate whether all the combinations different from p ′ satisfy Expression 100, and when there are a plurality of solutions, randomly select one value from the correct solutions. Just choose. The method for obtaining p 'is not limited to this, and other methods may be used. If the solution does not exist, this model indicates that the user preferences are inconsistent. In this case, the user preference is not changed and the warning message “Preference is inconsistent” is displayed. .

  Next, the video receiving unit 100 has input the metadata as a character string, and the preference storage unit 103 has been described as identifying the rating with a character string such as “bad creature”, but the present invention is not limited to this. For example, it may be expressed by an identifier such as a symbol or a number.

  The object selection unit 105 has been described as a pressure-sensitive touch panel that can be pressed by the user with a finger or the like. However, the object selection unit 105 is not limited to this, and any object that can uniquely select a video object can be used. Good. For example, an electromagnetic tablet and an electromagnetic stylus may be used, or different numbers may be attached and displayed on the video object being presented instead of the touch panel, and these numbers may be input from the remote control.

  The object selection unit 105 determines whether the point pressed by the user on the touch panel is in the ellipse represented by the graphic information added to the video object. However, the present invention is not limited to this, and the user selects the video object. Any method can be used. For example, the distance between the point pressed by the user and the center coordinates of each video object may be obtained, and the one having the shortest distance may be selected. For example, in the example of FIG. 8, the distance from the center coordinate 801 of the ellipse represented by the graphic information added to the sea snake video object is the closest compared to other video objects, so this is selected.

  Further, a video object is selected only when a plurality of video objects are selected at once, or when the distance between the closest video object and the coordinate value when the user presses the touch panel is smaller than the threshold value Lmax. In this way, it may be possible to prevent a video object located too far away from being selected.

  The preference changing unit 106 has been described as changing the preference with reference to each predefined rating. However, the preference changing unit 106 is not limited to the rating, and the display state of the video object selected by the object selecting unit 105 is changed. Any method can be used as long as it can be changed. In other words, the data structure of the preference is not limited to that composed of ratings.

  For example, the preference storage unit 103 stores a preference in a table format composed of keywords and display settings as shown in FIG. 13, and the object display method determination unit 102, for example, the video object shown in FIG. Whether each of the “name” includes a keyword is checked for each keyword, and if it includes this, the video object is displayed or hidden according to the display setting. For example, when a sea snake video object being displayed is selected, a search is performed as to whether the “name” of the video object, that is, “sea snake” includes any of the keywords shown in FIG. In this case, since the keyword “snake” matches, the display setting of the sea snake video object is set to “non-display”.

  If there is no matching keyword, the “name” “sea snake” is directly registered as a keyword, and this display setting is set to “non-display”. Alternatively, if a more abstract category such as “reptile” is added to the video object in addition to “name”, the preference can be constructed by category and handled in the same way. Alternatively, ratings, keywords, and categories may be used in combination. In the case where the display setting by rating and the display setting by keyword are contradictory, for example, the priority may be set in the order of rating, category, and keyword.

  Although the display state of the video object set in the preference storage unit 103 has been described as two types, “display” and “non-display”, the display state is not limited to this. For example, “transparent display” that lowers the brightness and displays through the background, numbers that express the transparency step by step, “mosaic” or “fill”, “texture” that is replaced with another video, etc. It is good also as a display state.

  The preference changing unit 106 completes the change of the preference before processing the next frame, but the change does not necessarily have to be reflected instantaneously. For example, the balance between the processing capacity and the processing load of the video presentation device Depends on. The processing may be completed within a sufficiently early time after the user selects the video object.

  Although an example in which video objects are hidden one by one has been described, a plurality of video objects may be hidden in a lump. For example, when an “emergency button” provided in the input unit is pressed, all video objects are hidden.

  The object presenting unit 104 displays only the image of the video object on the screen, but the present invention is not limited to this, and information added to the video object may be displayed on the screen together. For example, by displaying the “name” below the video object, it is possible to know what the non-displayed video object is. When a video object is hidden, it is impossible to know what the video object is, so even if the video object may be displayed to the user, the display settings cannot be changed. It was. However, by displaying data items such as “name”, it is possible to change the setting of a non-displayed video object to display.

  When the preference is changed, the preference storage unit 103 keeps the changed content as a setting, but an expiration date may be provided for the changed content of the preference. For example, when the preference changing unit 106 changes the preference, for example, as shown in FIG. 14, a flag indicating the time limit of “until the disappearance of the video object” and the original set value are stored in a table format. When the time limit expires, the change may be canceled and returned to the original set value. In the example of 1402 in FIG. 14, the display setting of “dangerous creature” is set to “non-display”, but when this video object disappears, it is returned to “display” which is the original setting value. The set time limit may be anything as long as it controls the appearance of the video, and may be the video object disappearance, the program end, one day, one month, or the like.

  Although the object selection unit 105 instructs the preference change unit 106 to change the display setting only when there is an input from the user, the video object may be automatically selected according to the setting condition. For example, a non-displayed video object is a video object that may be displayed to the user because the user does not know what it is unless a data item such as “name” is displayed on the screen. However, the preference display setting cannot be changed. Therefore, a non-displayed video object may be selected and displayed periodically, for example, once a day, and at random. If the user does not really want to display the video object, the user can select the video object to hide it. If the user can display the video object, the video object is displayed as it is.

  Although the display state has been described as being displayed or hidden in units of video objects, when there is even one video object set to non-display, the entire screen may be hidden. Or you may skip from the scene containing a non-displayed video object to the scene which does not contain a non-displayed video object. This reproduction method is effective when the video receiving unit 100 receives a randomly accessible video signal L100 such as a DVD or VOD (Video On Demand). Alternatively, the time until the non-displayed video object disappears is attached or displayed, or the time until the scene that does not include the non-displayed video object is displayed on the screen to determine whether the user skips. May help.

(Second Embodiment)
In the video presentation apparatus according to the first embodiment, the object selection unit 105 includes a pressure-sensitive touch panel and the like, and the user directly selects the video object. However, in the second embodiment, the pressure-sensitive touch panel is used. Instead, a video object is selected by remote control operation.

  FIG. 15 is a schematic configuration diagram of a video presenting apparatus according to the second embodiment of the present invention. It has the structure which added the determination part 107 to the image | video presentation apparatus of 1st Embodiment shown in FIG. Hereinafter, only differences between the second embodiment and the first embodiment will be described.

  When the “select” button of the remote control device is pressed, the object selection unit 105 of the second embodiment selects display objects one by one in order as shown in FIG. At this time, only the video object is selected, and the preference is not changed. The ID of the selected video object is notified to the object display method determination unit 102. As shown in FIG. 17, for example, when the video object “sea snake” is selected, the display setting is “selected” as indicated by 1701, and the presenting unit 104 highlights this video object.

  For example, when the “confirm” button of the remote control device is pressed, the confirmation unit 107 confirms selection of the video object by the object selection unit 105 at that time. Next, the determination unit 107 issues a preference change request to the preference change unit 106. For example, if the preference stored in the preference storage unit 103 is as shown in FIG. 6, if the “confirm” button is pressed while the video object “sea snake” is selected, the confirmation unit 107 A preference change request L108 is output. When the preference change unit 105 receives the preference change request L108, the preference change unit 105 inputs the video object information L106 selected from the object selection unit 105 and changes the preference stored in the preference storage unit 103 as shown in FIG. To do.

  According to the video presentation device of the second embodiment described above, the intuitive operability as in the first embodiment using the pressure-sensitive touch panel cannot be obtained, but the video object as in the first embodiment can be obtained. The user's preferences referenced in the presentation control can be directly changed without interrupting video viewing, and can be realized using a simple and inexpensive device such as a remote control device. There are benefits.

  Hereinafter, modifications of the second embodiment will be described.

  Although the object selection unit 105 of the second embodiment has been described as selecting video objects one by one in order, the video object selection method is arbitrary. For example, a “reverse order” button may be provided, and when pressed, video objects may be selected in the reverse order.

  Priorities may be assigned to the ratings, and the display object having the highest priority may be automatically selected from the display objects. For example, if the preference is set to display the rating shown in FIG. 6, the priority is assigned in order from the top to the bottom of the table, and the display video object shown in FIG. 7 is displayed on the screen. Among the three displayed video objects “Sea Snake”, “Big Fish”, and “Small Fish”, “Sea Snake” which is the “dangerous creature” with the highest priority of the rating is automatically selected. Even if the automatically selected video object is wrong, the user can select different video objects one after another by pressing the “select” button on the remote control. As a result, when a rating with a lower priority than the rating of the automatically selected video object is selected, a priority one higher than the automatically selected rating is assigned to the finally selected rating. You may learn to turn on.

  In addition, the determination unit 107 according to the second embodiment outputs a preference change request L108 in response to an operation of pressing a button on the remote control device. However, since the object selection unit 105 last selected an object, it is constant. When the time has elapsed, the preference change request L108 may be automatically output to confirm the selection of the video object.

(Third embodiment)
FIG. 18 is a schematic configuration diagram of a video presenting apparatus according to the third embodiment of the present invention. In the first embodiment and the second embodiment, the user preference is corrected by performing selection in units of video objects whose display settings are desired to be changed. By instructing a setting change, the user preference is corrected. Other configurations except for the difference in whether the user preference correction unit is for each video object or for each video scene are almost the same as those in the first embodiment. In the first embodiment, the metadata of the video object is handled, whereas in the third embodiment, the metadata of the video scene is handled.

  FIG. 20 is a diagram for explaining an outline of the process for the video presentation apparatus according to the third embodiment. For example, when a recording medium such as a DVD is viewed, a scene that the user does not want to view is reproduced. In the future, an example in which the user preference is changed in real time so that the same kind of scene is not reproduced will be shown. In FIG. 20, reference numeral 2000 indicates metadata added to the video, 2001 indicates a state in which the video is played back, and 2002 indicates an instruction from the user. In this example, a violent scene is played back in the scene 2003. If the user notices this and issues an instruction 2002 not to view this scene, the playback is interrupted and skipped to the next scene of the violent scene 2003, and the setting content in the preference storage unit 1803 is changed. Thereafter, the violent scene 2004 or the like is prevented from being reproduced. The preference change in this embodiment is also performed without interrupting video viewing. When the reproduction progresses and the reproduction position of the violent scene 2004 arrives, the user preference in the preference storage unit 1803 is referred to. Since the user preference is changed so that the violent scene is not reproduced by the instruction 2002, the violent scene 2004 is automatically skipped.

  As shown in FIG. 18, the video presenting apparatus according to the third embodiment receives a video signal L1800 including scene information and separates it into a video and scene information, accumulates scene data L1802 and frames A scene storage unit 1801 for outputting unit scene data L1805, a preference storage unit 1803 for storing user preferences, and scene data L1805 for each frame are input and a scene is displayed with reference to the preference data L1804. A scene display method determining unit 1802 for determining whether or not, a presenting unit 1804 for presenting a scene to the user in accordance with the frame-unit scene data L1805 designating the video data L1801 and the display method, and the user changing the scene display method A scene designation unit 1805 for instructing, and a scene selection From the preference change unit L1806 that changes the preference stored in the preference storage unit 1803 by the preference change instruction signal L1807 so that the display method of the scene selected by the scene selection unit 1805 is changed when the signal L1805 is input. Composed.

  The video reception unit 1800 receives the video signal L1800 and separates it into video data L1801 and scene data L1802 by a metadata separation circuit. The scene storage unit 1801 stores a plurality of scene information as shown in FIG. 19, for example. The scene information is a table composed of ID 1900, scene appearance time 1901, and rating 1902. The currently displayed scene data 1903 highlighted in the table is output to the scene display method determination unit 1802.

  For example, the preference storage unit 1803 represents the user's preferences shown in FIG. 6 as a rating 600 and a display setting 601. This is the same as in the first and second embodiments. The scene display method determining unit 1802 determines whether or not to display a scene by matching the currently displayed scene data L1803 input from the scene storage unit 1801 with the preference L1804 stored in the preference storage unit 1803. The display setting L1805 is output to the presentation unit 1804. The presentation unit 1804 displays the video data L1801 on the screen when the display setting L1805 is “display”, and displays nothing on the screen when the display setting L1805 is “non-display”.

  When the user does not want to see the scene displayed on the screen, for example, the user presses the “Hide” button of the remote control device and inputs an instruction to hide this scene. Then, the scene designation unit 1805 outputs the rating L 1806 added to the currently displayed scene to the preference change unit 1806.

  When the preference changing unit 1806 receives the preference change instruction L 1806, the preference changing unit 1806 changes the display setting of the corresponding preference among the preferences stored in the preference storage unit 1803. For example, when the preference is set as shown in FIG. 6 and the scene 1903 highlighted in FIG. 19 is selected, the preference changing unit 1806 changes the rating of “harmful creatures” from “display” to “non-display”. Change to As a result, the preference is changed as shown in FIG. Then, when displaying the next frame, the scene display method determination unit 1802 hides this scene.

  According to the video presentation device of the second embodiment described above, the preference setting of the display state of the video scene can be corrected without interrupting the viewing of the video. In the third embodiment, nothing is played back on the screen during playback of a non-display scene, but the video receiver 1800 receives stored data such as DVD or a randomly accessible video signal L1800 such as VOD. In this case, this non-display scene may be skipped.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

1 is a schematic configuration diagram of a video presenting apparatus according to a first embodiment of the present invention. External view of the video presentation device The figure which shows an example of the screen displayed by a presentation part The figure which shows an example of the video object data accumulate | stored in a video object storage part The figure which shows an example of the video object information per frame which a video object storage part outputs The figure which shows an example of the preference memorize | stored in the preference memory | storage part The figure which shows an example of the video object data of the frame unit containing the display method which an object display method determination part outputs The figure for demonstrating a mode that an object selection part selects a video object The figure which shows the change result of the preference by the preference change section The flowchart which shows the process sequence for implement | achieving the basic video presentation function with which a video presentation apparatus is provided. Flow chart showing the processing procedure for realizing the preference change function The figure which shows an example of the video object data of the frame unit containing a display method, Comprising: The figure which shows the case where several ratings are added to a video object Figure showing an example of preferences configured with keywords Diagram showing an example of preferences that allow display settings with a time limit Schematic configuration diagram of a video presentation device according to a second embodiment of the present invention The figure for demonstrating a mode that a video object is selected in an object selection part. The figure which shows an example of the video object data of the frame unit containing the display method which an object display method determination part outputs Schematic configuration diagram of an image presentation apparatus according to a third embodiment of the present invention The figure which shows an example of the video scene information accumulate | stored in a video object storage part Diagram for explaining scene skipping by changing user preferences

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Image | video receiving part, 101 ... Image | video object storage part, 102 ... Object display method determination part, 103 ... Preference memory | storage part, 104 ... Presentation part, 105 ... Object selection part, 106 ... Preference change part

Claims (2)

A video presentation device for presenting a video and a video object having a data item describing at least a part of the video,
Preference storage means for storing user preferences comprising preference items;
Display method determination means for determining a display method of the video object in light of the data item and the preference item;
Presentation control means for controlling the presentation of the video object according to the display method;
Video object selection means for selecting the video object by detecting a selection instruction given by the user to the video object presented with the video during the presentation of the video;
Using the data item of the video object selected by the video object selection means, referring to the user preference, and preference changing means for changing the corresponding preference item so that the display method changes,
The preference changing means determines a preference item to be changed so that an influence on a display state of another video object being presented is minimized. The data item includes video object attribute information;
The preference storage means stores preference items including attribute information of a video object and display control information indicating whether or not to display a video object having the attribute.
The preference changing means changes the display control information related to the attribute information that has the least influence on the display state of another video object.

Images