JP2009169357A - Image display controller and image display control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display controller capable of presenting a video image in which an image varies at a legible and comfortable state for a user, and to provide an image display control method. <P>SOLUTION: The device displaying the video image on an image display means D, is constituted of a video data storage means 21 in which the video image is stored, and a control means 10 for providing data about the video image to the image display means D, wherein the control means 10 includes: a display time calculation means 11 for calculating display time for displaying the video image on the image display means D on the basis of a mental tempo of a viewer who watches the video image; and an image providing means 12 for displaying the video image on the image display means D during the display time. Since the display time calculation means 11 of the control means 10 calculates the display time for displaying the video image on the basis of the mental tempo, a comfortable video image is provided to the viewer. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an image display control device and an image display control method.

  For images such as animations and slideshows that change images, the video moves at a speed determined in advance by the image creator if it is a moving image, and in the case of a slideshow in which still images are switched in sequence, a timing determined in advance by the image creator The images can be switched with.

  However, depending on the preference of the person viewing the video and the purpose of viewing the video, it may be preferable that the moving speed of the video or the timing of switching the video is faster or slower than the speed and timing determined in advance by the image creator.

  In view of this, techniques have been developed that allow a viewer to adjust the moving speed of the video and the timing at which the video switches (for example, Patent Documents 1 and 2).

In Patent Document 1, when a plurality of images are automatically displayed on a display, the display time interval between images provided by the user by operating a cross key of a mobile phone or the like is disclosed. There has been disclosed a display control apparatus that accepts a change request and dynamically changes the display time interval during image display according to the change request. Since the display time interval of the displayed image can be dynamically changed, there is a description that the user can browse information stored in large quantities in an album or the like efficiently in order.
Patent Document 2 discloses a technique in which a mechanical variable adjustment knob is used in an image display device that displays a tomographic image used for diagnosis. Further, there is a description that by operating the variable adjustment knob, the image interpreter can display at an appropriate display speed while viewing the tomographic images displayed one after another on the display.

In addition, a technology that allows a person viewing a video to adjust the moving speed of the video and the timing at which the video is switched has been put into practical use in part (Non-Patent Documents 1 and 2).
Non-Patent Document 1 provides a means for adjusting the speed of motion of a video when displaying a live-action video or animation, and when displaying an image, the image is displayed at a desired speed. As described above, software that allows the user to freely adjust the speed is introduced.
Further, Non-Patent Document 2 introduces software that allows a user to directly instruct the screen switching timing by a key operation or the like when still images are sequentially presented.

  However, in the above prior art, the user can adjust the image to move or switch at his / her favorite speed, but in any case, the user has to operate the key or the like while the image is displayed. . In addition, since the speed preferred by the user changes if the content (video) changes, the display speed must be adjusted again each time the content changes, and adjustment of the display speed is troublesome.

JP 2002-165787 A JP 2004-317604 A Under Microsoft Windows Vista Official Manual, Ed Pod et al., Nikkei BP Soft Press, September 2007 Microsoft Office PowerPoint 2007 at a glance, Hiromi Horiike, Nikkei BP Soft Press, January 2007

  In view of the above circumstances, an object of the present invention is to provide an image display control device and an image display control method capable of presenting a video in which an image such as an animation or a slide show changes in a state that is easy to see and comfortable for the user.

An image display control apparatus according to a first aspect of the present invention is an apparatus for displaying an image on an image display means, a video data storage means for storing the video, and a control means for providing the video data to the image display means. The control means comprises a display time calculating means for calculating a display time for displaying the video on the image display means based on a mental tempo of a viewer who views the video, and the video during the display time. And image providing means for displaying on the image display means.
The image display control device according to a second invention is the image display control device according to the first invention, wherein the video comprises a plurality of images, and the video data storage means stores the data of the plurality of images constituting the video, A display order storage unit in which display order information relating to the order in which a plurality of images are displayed on the image display unit is recorded; and a display time storage unit in which display time information relating to the display time of the plurality of images is recorded. In the control unit, the display time calculating unit calculates a display time for each image to be displayed on the image display unit based on the display time information and the mental tempo of the viewer. The image providing means sequentially converts the data of the plurality of images into the image during the display time calculated for each image based on the display order information. Characterized in that it is intended to be displayed on the display unit.
The image display control device according to a third aspect of the present invention comprises the mental tempo measuring means for measuring the mental tempo of the viewer in the first or second aspect, wherein the information about the mental tempo measured by the mental tempo measuring means is: It is input to the control means.
According to a fourth aspect of the present invention, there is provided an image display control device according to the third aspect, further comprising mental tempo storage means for storing the mental tempo information measured by the mental tempo measurement means in association with the viewer information. And user information input means for inputting the viewer information.
An image display control method according to a fifth aspect of the present invention is a display method for displaying a video on the image display means, and calculates a display time for displaying the video on the image display means based on a mental tempo of a viewer who watches the video. The video is displayed on the image display means during the display time.
The image display control method according to a sixth aspect of the present invention is the image display control method according to the fifth aspect, wherein the video is composed of a plurality of images, and the images are displayed on the basis of display time information on the display time of each image and the mental tempo of the viewer. A display time to be displayed on the image display means is calculated, an image to be displayed on the image display means is selected based on display order information regarding the order in which the plurality of images are displayed on the image display means, and the selected image Is displayed on the image display means during the display time calculated for the image.
The image display control method according to a seventh aspect of the present invention is the image display control method according to the fifth or sixth aspect, wherein the mental tempo of the viewer is measured before the video is displayed on the image display means, and the display is based on the measured mental tempo. Time is calculated.
The image display control method according to an eighth aspect of the present invention is the image display control method according to the seventh aspect, wherein the measured mental tempo information and the viewer information are stored in association with each other, and when the viewer information is input, The stored mental tempo is searched based on the viewer information, and the display time is calculated based on the searched mental tempo.

According to the first aspect, since the display time calculation unit of the control unit calculates the display time for displaying the video based on the mental tempo, a comfortable video can be provided to the viewer.
According to the second invention, since the display time calculation means of the control means calculates the display time of each image based on the mental tempo, it is possible to provide a comfortable video for the viewer. Moreover, since the display time calculation means automatically adjusts the display time for each image based on the display time information and the mental tempo stored in the display time storage means, the viewer adjusts the display for each image. You do n’t have to.
According to the third aspect, since the mental tempo of the viewer is directly measured by the measurement means and the mental tempo is used, the video can be provided in a state more suitable for the viewer.
According to the fourth aspect of the invention, it is not necessary to measure the mental tempo many times, so that the burden on the viewer can be reduced.
According to the fifth aspect of the invention, since the display time for displaying the video is calculated based on the mental tempo, it is possible to provide a comfortable video for the viewer.
According to the sixth aspect, since the display time of the image is determined based on the mental tempo, a comfortable video can be provided to the viewer. Moreover, since the display time is automatically adjusted for each image based on the display time information and the mental tempo, the viewer does not have to adjust the display for each image.
According to the seventh aspect, since the display time is determined based on the directly measured mental tempo, it is possible to provide the video in a state more suitable for the viewer.
According to the eighth aspect of the invention, it is not necessary to measure the mental tempo many times, so that the burden on the viewer can be reduced.

Next, an embodiment of the present invention will be described with reference to the drawings.
The image display control device of the present invention is a device for displaying a video composed of a plurality of images, and is characterized in that the display time of each image is adjusted in accordance with the mental tempo of the viewer of the video. Is.

In the present specification, an image includes both a still image and a moving image. Further, in this specification, a still image is referred to as a scene, with one image being a unit, and a moving image being an unit of an image for a certain period of time. In addition, the video includes a video that includes only one scene and a video that includes a plurality of continuous scenes.
Furthermore, the image display control device of the present invention corresponds to a device having a function of transmitting image data to a monitor or a display and displaying an image on these screens, for example, a device such as a computer or a DVD player. However, parts such as circuits constituting these devices also correspond to the image display control device of the present invention.

First, the mental tempo will be described before describing the image display control device of the present invention.
The behavior of daily life is inferred from the tempo of the person, and there is a tempo unique to the person such as how to talk and walk. Such a tempo is called a mental tempo in psychology. Although this mental tempo varies greatly among individuals, it is known to be consistent without being affected by temporal differences. A typical index of mental tempo is the number of hits per unit in a tapping (dapping) movement.

Below, one Embodiment of the image display control apparatus 1 of this invention is described.
FIG. 1 is a schematic block diagram of an image display control device 1 of the present embodiment. As shown in the figure, the image display control device 1 of the present embodiment records control information 10 for providing video information to the image display means D, and information relating to the video provided by the control means 10 to the image display means D. And a user information input means 30 for inputting information relating to a person (viewer) who watches the video displayed on the image display means D.
The image display means D may be a monitor, a television, or the like, but is not particularly limited as long as it can display a video provided from the image display control device of the present embodiment.

First, the storage unit 20 will be described.
As shown in FIG. 1, the storage unit 20 includes a video data storage unit 21, a display order storage unit 22, a display time storage unit 23, and a mental tempo storage unit 24.
As each storage unit constituting the storage unit 20, a hard disk or the like that is built in the image display control device 1 and that can freely write, read, and erase image data can be employed. Further, a medium that can read out data stored by a reading device provided in the image display control device 1, for example, a medium such as a DVD, can be employed as the video data storage unit 21.

The mental tempo storage unit 24 is a unit in which information related to the viewer's mental tempo (mental tempo information) is recorded. For example, personal information (for example, ID, name, etc.) and the mental tempo information of the person are recorded in association with each other.
The mental tempo information is information obtained by quantifying the mental tempo, for example, the number of hits per unit in the dapping motion, the comfortable blinking cycle of the flashing light, the comfortable tempo of the metronome sound (click sound), etc. It is.

The video data storage unit 21 records a plurality of scenes constituting a video. For example, each piece of image data obtained by dividing a piece of video data such as an introduction video for a school or a movie into a plurality of pieces is recorded as a scene, each with a file name.
When a plurality of video data is stored in the video data storage unit 21, a plurality of scenes constituting each video are stored in a folder or the like.

  The display order storage unit 22 records information (display order information) related to the order in which a plurality of scenes constituting a video are displayed on the image display unit D. For example, in the display order information, as shown in FIG. 3C, the number of each scene, the file name of each scene, and the order in which each scene is displayed are recorded in association with each other.

The display time storage means 23 displays each scene on the image display means D and records information related to the display time (display time information). For example, as shown in FIG. 3, in the display time information, relational expressions and numerical values for calculating the time for displaying each scene on the image display means D and the number of each scene are recorded in association with each other. .
For example, as the relational expression of each scene, the one determined as follows can be adopted. As shown in FIGS. 3A and 3A, the relational expression can be a constant value (numerical value) in a scene where the display time that the viewer feels comfortable is almost constant regardless of the viewer's mental tempo.
In addition, as shown in FIGS. 3A and 3B, a relational expression in which the display time is shortened in proportion to the mental tempo value in a scene in which a person with a large mental tempo value feels comfortable with a short display time. can do.

Next, the user information input means 30 will be described.
The user information input means 30 is for inputting information related to the viewer who watches the video displayed on the image display means D and information for selecting the video displayed on the image display means D. The user information input means 30 may employ, for example, a keyboard for inputting the information by a person or a device for reading the information from a recording medium, but is not particularly limited.

Next, the control means 10 will be described.
As shown in FIG. 1, the control unit 10 includes a display time calculation unit 11 and an image providing unit 12.

The display time calculation means 11 calculates how long each scene is displayed on the image display means D. That is, based on the display time information of each scene stored in the display time storage unit 23 and the mental tempo information of the viewer recorded in the mental tempo storage unit 24, an image suitable for the viewer's mental tempo. Thus, the display time of each scene is calculated.
The display time calculation means 11 preferably has a function of storing or outputting the display time and the number of each scene in association with each other.

The display time calculation means 11 calculates the display time in each scene as follows.
For example, as shown in FIG. 3B, if the relational expression of each scene has a parameter for inputting a mental tempo in the display time information (for example, scene 2 in FIG. 3B). For example, the display time of each scene is calculated by inputting a value obtained by digitizing the mental tempo into the parameter x.
If there is no parameter x for inputting a mental tempo in a certain scene (for example, scene 1 in FIG. 3B), the recorded numerical value is displayed instead of the relational expression for each scene. Time.

The image providing unit 12 causes the image display unit D to display each scene. That is, the image providing unit 12 selects a video to be displayed on the image display unit D based on the information input from the user information input unit 30, and each scene constituting the video is recorded in the display order information. Are displayed on the image display means D in the same order.
The image providing unit 12 also has a function of reading the display time of each scene calculated by the display time calculating unit 11 and causing the image display unit D to display each scene for the calculated display time. ing.

Therefore, when information relating to the viewer who views the video displayed on the image display means D and information for selecting the video displayed on the image display means D are input from the user information input means 30, each scene of the video is displayed. Can be displayed on the image display means D so as to be the display times calculated by the display time calculation means 11, respectively. Then, since the display time of each scene, that is, the display speed of the video is adjusted based on the viewer's mental tempo, a comfortable video can be provided to the viewer.
In addition, since the display time calculation means 11 automatically adjusts the display time of each scene based on the display time information stored in the display time storage means 21 and the mental tempo, the viewer can set the display time for each scene. You do n’t have to make adjustments, and viewers do n’t feel bothered.

Next, video display by the image display control device 1 of the present embodiment will be described.
FIG. 2 is a flowchart of image display by the image display control device 1 of the present embodiment.
As shown in FIG. 2, first, the viewer inputs his / her information, for example, user information such as ID and name, from the user information input means 30. At the same time, the user selects a video he / she wants to watch, inputs information (title) about the video he / she wants to watch, etc. (S1).
Note that the video is not limited to the one provided in the image display control device 1 but may be recorded on a medium such as a DVD owned by the viewer.

  When the information is input, the display time calculation unit 11 of the control unit 10 acquires the display time information of the selected video from the display time storage unit 23. In addition, the viewer's mental tempo information is acquired from the mental tempo storage means 24. Then, the display time calculation means 11 that has acquired both information calculates the display time of each scene based on the relational expression of the display time information, and stores this display time in correspondence with the number of each scene (S2).

Further, the image providing unit 12 of the control unit 10 acquires display order information from the display order storage unit 22.
The image providing unit 12 acquires the display order information, and also acquires from the display time calculating unit 11 information that associates the display time stored in the display time calculating unit 11 with the number of each scene. Also good.

Then, when a display start command is input from the viewer, video display starts (S3).
Needless to say, when the viewer inputs user information and selects the video he / she wants to view, the video may be automatically displayed after a predetermined time has elapsed.

  During the video display, the following processing is performed in the control means 10. This process will be described with reference to FIGS. 3B, 3C, and 4A.

  First, the image providing means 12 of the control means 10 uses the video data storage means 21 for the data (Start.jpg) of the first scene (scene 1) to be displayed based on the display order information acquired from the display order storage means 22. (S4).

The image providing unit 12 acquires the display time of the scene 1 from the display time storage unit 23 (S5).
As described above, when the image providing unit 12 has already acquired the display time and the information corresponding to the number of each scene from the display time calculating unit 11, this process is not necessary.

Then, the image providing means 12 displays the scene 1 on the image display means D for the display time (S6). At this time, since the relational expression of scene 1 is a constant value (5 seconds), the display time is 5 seconds regardless of the mental tempo.
Therefore, the image providing unit 12 displays the scene 1 on the image display unit D for the display time, that is, for 5 seconds (FIG. 4A).

  When the scene 1 is displayed for the display time, the image providing unit 12 determines whether or not the display of all scenes has been completed based on the display order information. As shown in FIG. 3C, when the next scene (scene 2) exists in the display order information, data (Moviefile.mpg) is acquired from the video data storage means 21 for the scene 2 and displayed. Time is acquired from the display time storage means 23 (S4, S5).

Then, the image providing unit 12 displays the data of the scene 2 on the image display unit D for the calculated display time (S6).
Here, in the scene 2, since the parameter x for inputting the mental tempo is included in the relational expression, the display time is a time corresponding to the value of the mental tempo. That is, the display time of the scene 2 displayed on the image display means D changes according to the mental tempo value.
For example, when the mental tempo value is 60, the display time is 12 seconds, and when the mental tempo value is 100, the display time is 8 seconds (FIG. 4A).
In the case of FIG. 4A, since scene 2 is a moving image, the moving speed of the moving image changes depending on the length of the display time.

  Then, when the image providing unit 12 displays the scene 2 for the display time, the image providing unit 12 determines whether or not the display of all the scenes is finished, and then acquires and calculates the data and display time of the next scene 3. During the display time, the image is displayed on the image display means D.

  When the above process is repeated and all the scenes are displayed, the video display is terminated.

  As described above, according to the image display control apparatus 1 of the present embodiment, the viewer simply inputs his / her information and the like from the user information input means 30 first, and each scene has its own mental tempo value. The image is displayed on the image display means D during the display time corrected accordingly. As a result, it is possible to view an image in a comfortable state for the user without performing troublesome adjustment of the display time for each scene.

  Note that FIG. 4A shows a case where still images and moving images are included. However, even in a slide show where still images (photos, etc.) are sequentially switched, the display time for displaying each scene depends on the mental tempo value. It can be made to change (FIG. 4 (B)).

  In the above example, the mental tempo value of the viewer is measured in advance, and the mental tempo value is stored in the mental tempo storage unit 24. If the value is known, the user's mental tempo value may be input from the user information input means 30 when viewing the video. In this case, the mental tempo storage means 23 may not be provided.

Furthermore, the viewer's mental tempo may be measured when viewing the video. That is, the mental tempo measuring means 40 may be provided in the image display control device 1 of the present embodiment.
In this case, since the viewer's mental tempo immediately before viewing the video can be directly used for the calculation of the display time, it is possible to reliably provide a video more suitable for the current state of the viewer.
The mental tempo measuring means 40 includes, for example, a button that can be tapped (dapped) by a person, and a device that counts the number of hits per unit in this tapping (dapping) motion can be used. The measuring means only needs to be able to measure and digitize the mental tempo, and may be a device that measures the period of blinking light and the tempo of the metronome sound (click sound) that the user feels comfortable with.
In addition, when there is an image in which the relationship between the display speed of the video that the user feels comfortable with and the mental tempo is known in advance, the display speed that the user feels comfortable about such video is measured, and the mental speed is determined from the display speed value. It is also possible to estimate and use the tempo.

  Furthermore, if the mental tempo value measured by the mental tempo measuring unit 40 is stored in the mental tempo storage unit 23 of the storage unit 20 together with the information input from the user information input unit 30, the mental tempo is stored. Since it is not necessary to measure the number of times, the burden on the viewer can be reduced.

  Furthermore, when the mental tempo measuring means 40 is provided, it goes without saying that the mental tempo may be measured every time. In such a case, the mental tempo storage means 23 may not be provided. Needless to say.

  In the above example, the case where the video is composed of a plurality of scenes has been described, but the video may be composed of only one scene. In this case, the display time for displaying the video is calculated according to the value of the mental tempo, and the display of the video is adjusted so that the video ends at the display time.

In the above example, the method of specifying and adjusting the display time of each scene by time has been described. However, the display time of each scene is changed by changing the frame rate (the number of display frames or the number of display frames per unit time). It is also possible to adjust.
For example, as the display time information, the relational expression or numerical value for calculating the display time, the number of frames or frames displayed per unit time, or the relationship consisting of the number of frames or frames displayed per second and parameters Remember the formula. Then, the frame rate may be adjusted based on the relational expression and the numerical value, and the display time of each scene may be adjusted.
In such a case, it goes without saying that each scene is composed of one frame (or frame) or a plurality of frames (or frames).

Further, the display time can be controlled by changing the number of frames constituting one scene according to the mental tempo without changing the frame rate.
For example, when the frame rate is 30 frames / second and a scene has 30 images as basic frames, the scene is normally displayed for only one second. However, if the number of frames in the scene is increased to 120, the scene display time becomes 4 seconds, and the scene display time becomes longer. In other words, the scene display speed can be reduced.
Conversely, if the number of frames in the scene is reduced to 15, the scene display time is 0.5 seconds, and the scene display time is shortened. In other words, the scene display speed can be increased.

For adjusting the number of frames as described above, the following method can be employed.
First, in order to reduce the number of frames in a scene, the images may be simply displayed on the image display means D by thinning out images from 30 images constituting the basic frame.
On the other hand, when increasing the number of frames in a scene, the number of frames must be increased from the basic frame. For example, if the same image is displayed several times, the same effect as when the number of frames in the scene is increased is obtained. be able to.
In addition, if the scene is an animation image, a method of generating an image to be displayed by the image providing unit 12 so that the number of frames of the scene is the number of frames calculated by the display time calculating unit 11 is also employed. can do.
For example, the video data storage unit 21 stores only the main frames of the scene, and intermediate frames (shortage frames) are generated as interpolation data in real time by the image providing unit 12 and are then displayed in the image display unit D. It can also be displayed.
If the object is an moving image, the shape data and motion data of the object are stored in the video data storage unit 21, and a halfway frame is generated by the image providing unit 12 using the data. It is also possible to display on the image display means D.
Needless to say, the method of increasing or decreasing the number of frames in the scene is not limited to the above method.

  The image display control device of this embodiment is an information guide terminal installed in a sightseeing spot, public facility (museum, art museum, school), company, etc., multimedia learning material, game, healing video, healing slide show, user interaction It is suitable for an apparatus for controlling the display of images such as animations and slide shows used in movies and the like.

It is a schematic block diagram of the image display control apparatus 1 of this embodiment. It is a flowchart of the image display by the image display control apparatus 1 of this embodiment. (A) is the graph which showed the relationship between mental tempo and the time which shows a scene, (B) is a schematic explanatory drawing of display time information, (C) is a schematic explanatory drawing of display order information. It is the example of a display of the image | video which consists of a several scene. It is a schematic block diagram of the image display control apparatus 1 of other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Image display control apparatus 10 Control means 11 Display time calculation means 12 Image provision means 21 Image | video data preservation means 22 Display order preservation means 23 Display time preservation means 24 Mental tempo preservation means 30 User information input means 40 Mental tempo measurement means D Image Display means

Claims (8)

An apparatus for displaying an image on an image display means,
Video data storage means for storing the video;
Comprising control means for providing the image data to the image display means,
The control means includes
Display time calculating means for calculating a display time for displaying the video on the image display means based on a mental tempo of a viewer who watches the video;
An image display control device comprising image providing means for displaying the video on the image display means during the display time. The video consists of a plurality of images,
The video data storage means stores data of the plurality of images constituting the video,
Display order storage means in which display order information related to the order of displaying the plurality of images on the image display means is recorded;
Display time storage means in which display time information related to the display times of the plurality of images is recorded,
In the control means,
The display time calculation means calculates a display time for each image to be displayed on the image display means based on the display time information and the mental tempo of the viewer, respectively.
The image providing means is configured to cause the image display means to sequentially display the data of the plurality of images based on the display order information during the display time calculated for each image. The image display control device according to claim 1. Comprising mental tempo measuring means for measuring the mental tempo of the viewer;
3. The image display control apparatus according to claim 1, wherein information relating to the mental tempo measured by the mental tempo measuring means is input to the control means. Mental tempo storage means for storing the mental tempo information measured by the mental tempo measurement means in association with the viewer information;
4. The image display control apparatus according to claim 3, further comprising user information input means for inputting information of the viewer. A display method for displaying video on an image display means,
Based on the mental tempo of the viewer watching the video, the display time for displaying the video on the image display means is calculated,
An image display control method, wherein the image is displayed on the image display means during the display time. The video consists of a plurality of images,
Based on the display time information on the display time of each image and the viewer's mental tempo, the display time for displaying each image on the image display means is calculated,
Based on display order information relating to the order in which the plurality of images are displayed on the image display means, an image to be displayed on the image display means is selected, and the selected image is selected for the display time calculated for the image. 6. The image display control method according to claim 5, wherein the image display means displays the image during the interval. Measuring the viewer's mental tempo before displaying the video on the image display means;
7. The image display control method according to claim 5, wherein the display time is calculated based on the measured mental tempo. Save the measured mental tempo information in association with the viewer information,
When the viewer information is input, the stored mental tempo is searched based on the viewer information,
8. The image display control method according to claim 7, wherein a display time is calculated based on the retrieved mental tempo.

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