JP2001024963A - Superimposed character presenting method for television program with superimposed characters - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a superimposed character program receiving method capable of providing a superimposed character presentation form easy to read and to comprehend for a viewer. SOLUTION: A television video is vertically and horizontally compressed, and this compressed master video is vertically and horizontally moved. By effectively utilizing an L-shaped empty area over two mutually adjacent sides in a peripheral area on a video display picture 11 prepared by this compression and movement as an L-shaped superimposed character display area 15, superimposed characters on one line are simultaneously presented in this L-shaped superimposed character display area 15. Thus, unit superimposed characters collecting characteristics more than a certain number can be simultaneously presented for comparatively long time corresponding to the number of characters while suppressing the compressing rate of the master video up to the most.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for presenting subtitles in a television program with subtitles applied to a subtitle program receiving system capable of realizing a subtitle presentation form that is easy for a viewer to read and understand.

[0002]

2. Description of the Related Art Today, it is generally referred to as an advanced information society, but hearing impaired persons are in a situation where it is difficult to obtain information as compared with healthy persons.

That is, for example, a TV broadcast program which is widely used as an information medium is exemplified, and when the ratio of a subtitle program to all TV broadcast programs in Japan is referred to, it reaches 33 to 70% in Europe and the United States. Only 10
At present, it is extremely low at about%.

[0004]

SUMMARY OF THE INVENTION In an attempt to break out of the above-mentioned situation and to widely and widely disseminate subtitle programs in which subtitles are synthesized with video and / or audio, the present inventors have considered from all viewpoints. We are working hard on research related to subtitle programs.

[0005] In order to spread such subtitle programs widely and generally, it is extremely important that the subtitles be easy to read and understand.

[0006] In order to find the ideal image of a subtitle program for a viewer, the inventors of the present invention conducted an evaluation experiment on subtitle programs conforming to various subtitle presentation formats from the viewpoint of readability and comprehension of subtitles. Was done.

In this evaluation experiment, a remarkably high evaluation result was obtained by a subtitle presentation method for presenting subtitles in an empty area secured by compressing the vertical and horizontal dimensions of a parent image.

[0008] However, even though it is a television program with subtitles, there has been an opinion that the size of the parent video is easily compressed because the importance of the parent video is extremely high. This suggests that even if a subtitle display area is provided on the video display screen, it is preferable to suppress the compression rate of the parent video as much as possible.

Further, from the above-described evaluation results, it has been found that if a unit subtitle having a small number of characters is presented for a relatively short time according to the number of characters, the unit subtitle may be overlooked by a viewer. This suggests that when presenting subtitles on the video display screen, it is preferable to collectively present a unit of subtitles having a certain number of characters or more for a relatively long time according to the number of characters.

Accordingly, the present inventors have conducted intensive studies based on the above-described evaluation results. As a result, while suppressing the compression rate of the parent image as much as possible, a unit of subtitles having a certain number of characters or more is obtained. Thus, a new caption presentation method that can be presented in a lump for a relatively long time according to the number of characters has been conceived.

The present invention has been made in view of the above-described circumstances, and compresses a television image in the vertical and horizontal directions, and moves the compressed parent image in the vertical and horizontal directions. By utilizing the L-shaped free area extending over two mutually adjacent sides of the peripheral area on the video display screen created by the movement as the L-shaped subtitle display area, the L-shaped subtitle display area By presenting a single line of subtitles at once, the unit subtitles that summarize the number of characters over a certain amount are presented together for a relatively long time according to the number of characters, while suppressing the compression rate of the parent video as much as possible,
Accordingly, it is an object of the present invention to provide a subtitle presentation method for a subtitled TV program applied to a subtitle program receiving system capable of realizing a subtitle presentation form that is easy for a viewer to read and understand.

[0012]

According to a first aspect of the present invention, there is provided a subtitle serving as a base of a subtitle to be presented, which is provided with video and audio and predetermined timing information thereof. A subtitle presentation method in a television program with subtitles used when presenting a sentence text, wherein a television image is compressed vertically and horizontally, and a parent image after the compression is moved in a vertical and horizontal direction. The L-shaped subtitle display area is formed by utilizing an L-shaped free area extending over two mutually adjacent sides of the peripheral area on the video display screen created by compression and movement as an L-shaped subtitle display area. The gist is to present one line of subtitles collectively to the area.

According to the first aspect of the present invention, while the occupation rate of the parent video display area on the video display screen is maintained at a high level, for example, 75% or more, the total number of necessary and sufficient characters such as a maximum of about 30 characters is maintained. As a result of being able to present the L-shaped subtitles collectively, the compression rate of the parent video is suppressed as much as possible, and the unit subtitles in which the number of characters is more than a certain amount are collected for a relatively long time according to the number of characters. It is possible to satisfy the two conflicting demands of the simultaneous presentation with an exquisite sense of balance, thereby realizing a subtitle presentation mode that is easy for the viewer to read and understand.

By the way, the L-shaped caption display area 15 utilizing the empty area created as described above is divided into, for example, three areas in consideration of design convenience as shown in FIG. 1 or FIG. Have been. This is the Windows AP
This is because various subtitles can be presented, such as character settings of different parameters for each of the display areas AR1, AR2, and AR3, in combination with the I LOGFONT structure declaration and the like.

On the other hand, when the L-shaped subtitle presentation as in the present invention is employed and the batch total exchange format in which all the subtitles are exchanged simultaneously at a timing synchronized with the audio and the video is adopted, As a result, the user is forced to move his or her line of sight along an L-shaped trajectory, which may not be very desirable from the viewpoint of readability and comprehension of subtitles.

Therefore, a second aspect of the present invention is the method of presenting subtitles in a television program with subtitles according to the first aspect, wherein the L-shaped subtitle display area is divided into three areas. The gist of the present invention is to display subtitles as if they were scrolled.

According to the second aspect of the present invention, the L-shaped subtitle display area is divided into three areas, and the subtitles are displayed so as to be scrolled over the respective areas.
As a result that the viewer can grasp the subtitle content with relatively little gaze movement without being forced to move the gaze to trace the L-shaped trajectory, it becomes possible to present various subtitles as described above, It is possible to realize a preferred subtitle presentation form from the viewpoint of readability and easy understanding of subtitles.

Now, in dividing the above-mentioned L-shaped caption display area into three areas, what kind of division ratio is to be employed becomes a problem.

Therefore, a third aspect of the present invention is the subtitle presentation method for a television program with subtitles according to the second aspect, wherein the L-shaped subtitle display area is divided into three areas. The gist is that it is performed equally.

According to the third aspect of the present invention, when the L-shaped subtitle display area is divided into three areas, the division is performed almost equally, so that the sound for each area, which is indispensable for scroll switching, is obtained. It can be expected that the subtitle presentation timing for the video and the video can be easily adjusted.

Further, when the scroll conversion format as in the present invention is adopted, as shown in FIG. 1 or 2, the presentation unit subtitle displayed in the third subtitle display area AR3 in the first subtitle presentation phase. When paying attention, the presentation unit subtitles are switched between a plurality of display areas at a predetermined scroll conversion speed in the order of the areas AR3, AR2, and AR1. In such a subtitle presentation mode premised on scroll switching, if subtitles were displayed in the first subtitle display area AR1 in the first subtitle presentation phase, they would be displayed in the first subtitle display area AR1 in the second presentation phase. If the subtitle that has been displayed is erased and the next subtitle is displayed, and if the subtitle displayed in the first subtitle display area AR1 is missed in the first subtitle presentation phase, what was displayed there Can not be grasped.

Therefore, a fourth aspect of the present invention is a method for presenting subtitles in a television program with subtitles according to any one of the second to third aspects.
By making the subtitle display area located at the most downstream in the scroll conversion blank, and displaying subtitles in other subtitle display areas, it is possible to avoid the situation where subtitles are displayed only in one presentation phase as much as possible. That is the gist.

According to the fourth aspect of the present invention, in the first presentation phase, the subtitle display area located at the most downstream position in the scroll change is blanked, and the subtitle is displayed in the other subtitle display areas, thereby making it possible to obtain one subtitle. Since a situation in which subtitles are displayed only in the first presentation phase is avoided as much as possible, it is possible to expect further promotion of readability and understandability of subtitles.

By the way, in the course of the above-mentioned evaluation experiment, individual differences in preference among individual viewers also appear in basic subtitle presentation formats such as the number of display lines, character size, character decoration, and subtitle conversion method. In some cases, there was a tendency to strongly recommend a particular subtitle presentation format.

According to a fifth aspect of the present invention, there is provided the subtitle presentation method for a television program with subtitles according to any one of the first to fourth aspects, wherein the L-shaped subtitle display area includes a desired subtitle. The gist is that a subtitle converted according to the presentation format can be displayed.

According to the fifth aspect of the present invention, in the L-shaped subtitle display area, subtitles converted according to a desired presentation format can be displayed. As a result, a flexible subtitle presentation format can be selected, and it is possible to expect to achieve the intended purpose of widely distributing subtitle programs to the general public.

According to the fifth aspect, in the L-shaped caption presentation form according to the present invention, when a preferable presentation format is considered from the viewpoint of readability and understandability of the caption, horizontal writing and vertical writing are considered. It is considered that a subtitle presentation mode in which writing is mixed is desirable, but how to realize such a subtitle presentation mode becomes a problem.

According to a sixth aspect of the present invention, there is provided the subtitle presentation method for a subtitled television program according to the fifth aspect, wherein the subtitles according to a unique presentation format can be displayed for each of the display areas. Make a summary.

According to the sixth aspect of the present invention, subtitles according to a unique presentation format can be displayed for each display area.
Therefore, it is possible to cope with a special subtitle presentation mode in which horizontal writing and vertical writing are mixed, and as a result, in the L-shaped subtitle presentation mode, a preferable presentation format from the viewpoint of readability and easy understanding of subtitles Can be realized.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, one embodiment of a method for presenting subtitles in a television program with subtitles according to the present invention will be described.
This will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing an example of a subtitle presentation image using the method of presenting subtitles in a television program with subtitles according to the present invention. FIG. 2 is a view showing a parent video display area and an L-shaped subtitle display on a video display screen. FIG. 3 is a diagram showing the occupation state of each area, FIG. 3 is a flowchart showing a processing procedure for realizing L-shaped caption presentation, and FIG.
FIG. 5 is a diagram showing an ONT structure declaration and an example of setting an initial value of the structure. FIG. 5 is a diagram showing settings of three subtitle display areas in an L-shaped subtitle for realizing the subtitle presentation image shown in FIG. FIG.

Before the description of the present embodiment, the terms used in the following description are defined. In the description of the present embodiment, the entire set of subtitle sentences to be presented is referred to as “subtitle text”. In the caption text, a subset of a set of caption texts separated by an appropriate period is called a “unit caption text”, and a caption that is a presentation unit on a video display screen of a display is referred to as a “presentation caption”. When expressing individual subtitles of each line included in the presentation unit subtitles, this is called "presentation unit subtitle line", and when expressing any character in the presentation unit subtitle line, this is referred to as "subtitle character "

As described above, in order to widely and widely disseminate subtitle programs in which subtitles are synthesized with video and / or audio, the present inventors have conducted intensive studies on subtitle program related technologies from all viewpoints. We are working on it.

In order to spread such closed-captioned programs widely and generally, it is extremely important that the closed-captioned programs be easy to read and understand.

In order to find an ideal image of a subtitle program for a viewer, the present inventors evaluated subtitle programs conforming to various subtitle presentation formats, such as readability and understandability of subtitles, as evaluation items. An experiment was performed.

The remarkably high evaluation result was obtained in this evaluation experiment because the vertical and horizontal dimensions of the video were compressed and the position was moved to provide a subtitle display area on the video display screen, This was a subtitle presentation method for presenting subtitles.

However, even though it is a television program with subtitles, there are some opinions that the size of the image is easily compressed because the importance of the parent image is extremely high. This suggests that even if a subtitle display area is provided on the video display screen, it is preferable to suppress the compression rate of the parent video as much as possible.

Further, from the above-described evaluation results, it has been found that if a unit subtitle having a small number of characters is presented for a relatively short time according to the number of characters, the unit subtitle may be overlooked by a viewer. This suggests that when presenting subtitles on the video display screen, it is preferable to collectively present a unit of subtitles having a certain number of characters or more for a relatively long time according to the number of characters.

More specifically, from the viewpoint of readability and comprehension of subtitles, a unit of subtitles having a certain number of characters or more is generally presented on a video display screen in a lump. It is said that it is good that the required time continues, but the number of characters and the presentation duration greatly affect how the presentation unit subtitles are read.

For example, assuming that a hearing-impaired person watches a TV program with subtitles, video information and audio information are alternately viewed through the sight, so that subtitles can be viewed only intermittently. Absent. Therefore, it is desirable to present the information as subtitles that are easier to read and understand, so that the ratio of viewing subtitles is reduced as much as possible so that more video can be viewed accordingly.

The way of viewing subtitles in this case also depends on the presentation format of the subtitles. For example, when a presentation format in which two-line presentation unit subtitles are exchanged at a time is illustrated, and an attempt is made to capture all the subtitles presented, In general, pre-reading, post-reading, or both are performed centering on a reference subtitle character (for example, a character corresponding to the progress of a voice announcement).

The reason for performing the pre-reading, the post-reading, or both is that there is an overlooking operation time in which the user is looking away from the subtitles including watching the video or blinking or looking aside. The length of the missed operation time is empirically considered to be about 0.5 to 2 seconds.

Here, assuming that the subtitle presentation speed is 200 characters / minute, the maximum time of 2 seconds is equivalent to about 7 characters. It can be seen that there is a risk of overlooking.

From this, it is necessary that 14 consecutive characters centering on the reference subtitle character be used as the minimum presentation unit. Assuming 7 characters, 24
It can be seen that it is desirable to present unit captions of about 29 characters at a time. By the way, in the current subtitle broadcasting, there are many two-line presentations with a maximum of 15 characters per line, and unit subtitles of up to about 30 characters are collectively presented on the video display screen.

The inventors of the present invention have conducted intensive studies based on the above-described evaluation results. As a result, while suppressing the compression rate of the parent image as much as possible, a unit subtitle in which a certain number of characters or more are collected is obtained. They have come up with a new subtitle presentation method that can be presented together for a relatively long time according to the number of characters.

As a method for presenting subtitles in a state where the compression rate of the parent video is suppressed as much as possible, it is conceivable to arrange presentation subtitles in one line. Even if you consider that the evaluation result of a certain level or more is obtained even in the form of displaying subtitles slightly smaller than usual in the subtitle display area, the number of characters that can be accommodated per line From the viewpoint of maintaining, the limit is about 20 characters, and the content is continuous 24-2
In view of the finding that it is preferable to present subtitles of about 9 characters in a lump, the number of characters to be lumped is not sufficient.

Therefore, in the method for presenting subtitles in a television program with subtitles according to the present invention, as shown in FIG. 1, a television image is compressed in the vertical and horizontal directions, and the compressed parent image is displayed in the vertical and horizontal directions. The L-shaped free space extending over two mutually adjacent sides of the peripheral area on the video display screen 11 created by the compression and movement is utilized as the L-shaped caption display area 15. By presenting a single line of subtitles in the L-shaped subtitle display area 15 in a lump, the compression rate of the parent video is suppressed as much as possible, and a unit of subtitles having a certain number of characters or more is determined according to the number of characters. The two conflicting demands of being presented together for a relatively long time are satisfied with an exquisite sense of equilibrium, which makes it easier for viewers to read and understand. It is as to achieve the easy subtitle presentation form.

More specifically, as shown in FIG. 1, first, a television image is compressed vertically and horizontally, and the compressed parent image is vertically and horizontally compressed, for example, in the upper right corner in FIG. The parent video is accommodated in the parent video display area 13 by being moved toward the unit. Then, by this compression and movement, an L-shaped free area 15 is created on the left side and the lower side on the video display screen 11. Therefore, the L-shaped free space 15 created by the compression and movement is utilized to the maximum extent as a caption display area, and one line of L-shaped caption is presented here.

The present invention is not limited to the above-described embodiment. For example, it is possible to adopt a mode in which the compressed parent video is moved to the lower left corner in FIG. it can. By doing so, an L-shaped free space 15 is created in the right and upper portions on the video display screen 11 by the compression and movement. Therefore, the L-shaped free space 15 created by the compression and movement can be utilized to the fullest extent as a caption display area, and a one-line L-shaped caption can be presented here.
Further, in the same manner as described above, it is needless to say that a mode in which the compressed parent video is moved so as to be drawn to the upper left corner or the lower right corner in FIG. However, when the compressed parent video is moved so as to be drawn to the lower left corner, the upper left corner, or the lower right corner in FIG. 1, the L-shaped subtitle presentation image is inverted and It should be noted that the L-shaped caption referred to in the present invention is a concept including the inverted and / or inverted image described above.

According to the above-described embodiment, the occupancy of the parent video display area 13 on the video display screen 11 is set to, for example, 7
While maintaining a high level such as 5% or more, it becomes possible to collectively present L-shaped captions with a necessary and sufficient number of characters such as a maximum of about 30 characters as a whole.

By the way, the L-shaped caption display area 15 utilizing the empty area created as described above is divided into, for example, three areas in consideration of design convenience as shown in FIG. 1 or FIG. Have been. Therefore, in the following description, for convenience, the empty area generated on the left side of the video display screen 11 is referred to as a first subtitle display area AR1, and the left area of the empty area generated on the lower side is displayed as the second subtitle display area AR1. The area AR2 is called, and the right part of the empty area generated in the lower part is called the third subtitle display area AR3.

The reason why the L-shaped subtitle display area 15 is divided into three is that the Windows API LOGON
In conjunction with the T structure declaration, etc., each display area AR1, AR
This is because various captions can be presented, such as character settings of different parameters for each of AR2 and AR3. FIG. 5 shows specific examples of these character display areas and display character setting parameters. The numerical value is 640 horizontal dots,
This is a value converted into a 480-vertical VGA screen. However, the unit of the character inclination is “degree”, and the number of displayed characters is a conversion value based on the number of full-width characters.

Next, a processing procedure for realizing the subtitle presentation image shown in FIG. 1 will be described with reference to a flowchart shown in FIG. In addition, in realizing an L-shaped caption presentation image, while setting the caption frame, timing control, setting of caption text, and the like using Visual-Basic, the caption size, font, rotation, etc. Microsoft's Windows operating system (Application Programming Interface)
ce). In addition, as a caption sentence text to be described in the present embodiment, "Hashimoto hastily hurried to resolve pending issues departed from Narita Airport for a meeting with the four Eastern European countries yesterday."

In steps S1 and S2, Visual-B
In order to be able to handle character information in such a special form using asic, first, the Windows API LOGFO
Declares the NT structure (step S
1) Set the initial value of the structure (step S)
2). Although this example is shown in FIG. 4, various parameters such as the character display position, character size, and character inclination can be easily set using Visual-Basic.

In steps S3 to S5, since the timing information corresponding to the video or audio is added to, for example, the head of each sentence of the subtitle sentence text as described above, Caption sentence text is taken in with the timing information (step S
3, S4), a subtitle scroll conversion speed is set (step S5). As a method of setting the scroll conversion speed, it is more appropriate to consider the character type and the number of characters,
Here, for simplicity, only the number of characters is considered, and the conversion speed per character is fixed.

In steps S6 and S7, the value of the character number counter i used for counting the number of subtitle characters is set to "-9" (step S6), and the "i" -th to "i + 30" of the subtitle sentence text are set. The first character data is fetched (step S7). In the first subtitle presentation phase, in step S7, the character data from the “i = −9” th to the “i + 30 = 21” th of the subtitle sentence text is fetched. At this time, "-9"
Characters from the first to the "0" th are left blank because they have no substance.
Here, in step S6, the value of the number-of-characters counter i is initially set to “−9” in the first subtitle presentation phase while the first subtitle display area AR1 is blanked,
By displaying subtitles in the second and third subtitle display areas AR2 and AR3, the subtitles are promoted in readability and intelligibility. More specifically, the present embodiment adopts a subtitle presentation mode in which a subtitle composed of 10 characters is a presentation unit, and the presentation unit displayed in the third subtitle display area AR3 in the first subtitle presentation phase. When paying attention to subtitles, the presentation unit subtitles include the areas AR3 and AR
In the order of 2, AR1, the display areas are switched at the scroll switching speed set in step S5. In such a subtitle presentation mode premised on scroll switching, if subtitles were displayed in the first subtitle display area AR1 in the first subtitle presentation phase, they would be displayed in the first subtitle display area AR1 in the second presentation phase. The subtitles that have been deleted will be erased and the next subtitle will be displayed,
First subtitle display area A in the first subtitle presentation phase
If the caption displayed on R1 is missed, it becomes impossible to grasp what was displayed there. Therefore, in the first subtitle presentation phase, the first subtitle display area AR1 is blanked, and the subtitles are displayed in the second and third subtitle display areas AR2 and AR3, so that the subtitles are easy to read and understand. I try to promote it.

In step S8, it is determined whether or not there is a character fetched in step S7. If it is determined that there is a character fetched in step S7, the process proceeds to step S9, while there is no character. Sometimes, the process proceeds to step S14.

In steps S9 to S10, 1, 2, and 3 are set as the values of the area counter n indicating the identification code of the subtitle display area (step S9), and the parameters according to the identification code values are set according to FIG. By doing so, the subtitle presentation format to be displayed in each display area is set (step S10). For example, when n = 2, it indicates the second subtitle display area AR2, and parameters such as the character font type, the display position, the number of characters, the character size, and the character inclination in this area AR2 are set according to FIG. The subtitle presentation format to be displayed in the second subtitle display area AR2 is set. As described above, in the present embodiment, a unique subtitle presentation format can be adopted for each display area. Therefore, a flexible subtitle presentation format according to various preferences of a wide range of viewers can be selected. As a result, it is possible to expect to achieve the intended purpose, such as disseminating subtitled programs widely to the general public.

In steps S11 to S13, the subtitle displayed in each display area is deleted (step S1).
1) The display is updated so that captions according to the presentation format set in step S10 are displayed in each display area (step S12), and the value of the character counter i is incremented by "10" (step S13), and then step S7 is performed. Return to and repeat the following processing. In addition, each display area AR1,
The caption character displayed first in AR2 and AR3 is the i + (n-1) * 10th caption character in the caption text.

Therefore, in the first subtitle presentation phase, AR1 is “□□□□□□□□□□□ (with the symbol □
Indicates blank characters), AR2 is "Hashimoto head hurrying to resolve issues", AR3 is "Four countries in Eastern Europe yesterday"
In the presentation phase of AR1, AR1 is "Hashimoto head rushing to resolve pending issues", AR2 is "Face is the four countries of Eastern Europe yesterday", AR3 is "Narita for talks with," and in the third presentation phase, AR1 is "Sorry, the four countries in Eastern Europe yesterday", AR2 was "Narita for talks with" and AR3 was "Departure from airport". In the fourth presentation phase, AR1 was "Narita for talks with. , AR2 “departed from the airport”, AR3 “□□□□□□□□□□”, and in the fifth presentation phase, AR1 “departed from the airport.” And AR2 “□□□”. □□□□□□□□ ”and AR3 becomes“ □□□□□□□□□□ ”.

On the other hand, as a result of the character presence / absence determination in step S8, if there is no character fetched in step S7,
In step S14, the subtitle displayed in each display area is deleted after a predetermined time, and the subtitle display processing ends.
Step S14 corresponds to the sixth presentation phase.

As described above, according to the subtitle presentation method according to the present embodiment, the configuration is such that the L-shaped subtitle display area 15 is equally divided into three areas, and the subtitles are scroll-switched between the respective areas. Therefore, by maximizing the use of the limited free space 15 and presenting subtitles with as many characters as possible, the compression rate of the parent video is suppressed as much as possible, and Satisfy the conflicting two demands of presenting a batch of unit subtitles with a certain number of characters over a relatively long time according to the number of characters with an exquisite sense of equilibrium. An easy-to-understand subtitle presentation mode can be realized.

Further, according to the subtitle presentation method according to the present embodiment, in the first presentation phase, the first subtitle display area AR1 located at the most downstream position in the scroll transition is blanked, while the other second and second subtitle display areas AR1 are blanked. 3 subtitle display area AR
2. By displaying subtitles on the AR3, it is possible to avoid as much as possible the case where subtitles are displayed only in one presentation phase. Therefore, it is possible to promote readability and understandability of subtitles. There is an advantage that there is.

Moreover, according to the method for presenting subtitles according to the present embodiment, subtitles converted according to a desired presentation format can be displayed in the L-shaped subtitle display area. As a result of being able to select a flexible subtitle presentation mode according to various preferences, it is possible to expect to achieve the intended purpose of widely distributing subtitle programs to the general public.

According to the subtitle presentation method according to the present embodiment, subtitles conforming to a unique presentation format can be displayed for each display area. Therefore, special subtitles in which horizontal writing and vertical writing are mixed are possible. As a result of being able to cope with the presentation mode, it is possible to realize a preferred presentation mode in the L-shaped subtitle presentation mode from the viewpoints of readability and comprehension of subtitles.

The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes within the scope of the claims.

That is, for example, in the present embodiment, an example has been described in which the L-shaped caption display area 15 is equally divided into three areas, and the captions are displayed so as to be scrolled over the respective areas. The present invention is not limited to this mode, and it goes without saying that, instead of the scroll conversion format, a batch total replacement format in which all subtitles are batch-replaced at a timing synchronized with audio and video can be adopted.

[0068]

As described above in detail, according to the first aspect of the present invention, the compression rate of the parent video is suppressed as much as possible, and the unit caption in which the number of characters is more than a certain number is set according to the number of characters. Presented for a relatively long time,
These two conflicting demands can be satisfied with an exquisite sense of equilibrium, and with this, a subtitle presentation form that is easy for the viewer to read and understand can be realized.

Further, according to the invention of claim 2, it is possible to present various captions, and to realize a preferable caption presentation form from the viewpoint of readability and understandability of the captions.

Further, according to the third aspect of the present invention, when the L-shaped subtitle display area is divided into three areas, the division is performed almost equally, so that each area which is indispensable for scroll conversion is provided. It can be expected that the subtitle presentation timing for audio and video can be easily adjusted.

Further, according to the fourth aspect of the present invention, in the first presentation phase, the subtitle display area located at the most downstream position in the scroll transition is blanked, and the subtitle is displayed in the other subtitle display areas. Since a situation in which subtitles are displayed only in one presentation phase is avoided as much as possible, it is possible to expect further promotion of readability and understandability of subtitles.

According to the fifth aspect of the present invention, the L-shaped subtitle display area is configured to display subtitles converted in accordance with a desired presentation format. As a result, it is possible to expect to achieve a desired purpose of widely disseminating subtitle programs widely.

According to the sixth aspect of the present invention, subtitles conforming to a unique presentation format can be displayed for each display area. Therefore, a special subtitle presentation mode in which horizontal writing and vertical writing are mixed can be achieved. As a result, L
In the subtitle subtitle presentation mode, an extremely excellent effect is achieved in that a preferable presentation format can be realized from the viewpoint of readability and easy understanding of subtitles.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a subtitle presentation image using a subtitle presentation method in a television program with subtitles according to the present invention.

FIG. 2 is a diagram illustrating an occupation state of a parent video display area and an L-shaped caption display area on a video display screen.

FIG. 3 is a flowchart illustrating a processing procedure for realizing an L-shaped caption presentation;

FIG. 4 is a diagram illustrating an example of a LOGFONT structure declaration of an API and an example of setting an initial value of the structure;

FIG. 5 is a diagram showing a setting status of each of three subtitle display areas in an L-shaped subtitle for realizing the subtitle presentation image shown in FIG. 1;

[Explanation of symbols]

 11 Video display screen 13 Parent video display area 15 L-shaped subtitle display area (L-shaped free area) AR1 to AR3 First to third subtitle display areas

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Eiji Sawamura, Inventor Communication and Broadcasting Organization 2-31-19 Shiba, Minato-ku, Tokyo (72) Inventor Terumasa Ehara 2-31-19 Shiba, Minato-ku, Tokyo Communication and Broadcasting Institution (72) Inventor Katsuhiko Shirai 2-31-19 Shiba, Minato-ku, Tokyo Communication and Broadcasting Corporation F-term (reference) 5C023 AA18 AA38 CA02 CA05 5C025 CA02 CA09 CA10

Claims (6)

[Claims] 1. A subtitle presentation method in a television program with subtitles used for presenting a subtitle sentence text serving as a basis for subtitles to be presented, given video and audio and predetermined timing information therewith. In addition to compressing the television image vertically and horizontally, the compressed parent image is moved vertically and horizontally, and mutual compression is performed among the peripheral areas on the image display screen created by the compression and movement. By utilizing an L-shaped free area extending over two adjacent sides as an L-shaped subtitle display area, a single line of subtitles is collectively presented in the L-shaped subtitle display area. Subtitle presentation method. 2. The subtitle presentation method according to claim 1, wherein the L-shaped subtitle display area is divided into three areas, and the subtitles are scrolled over the respective areas. A method for presenting subtitles in a television program with subtitles. 3. The method for presenting subtitles in a television program with subtitles according to claim 2, wherein when the L-shaped subtitle display area is divided into three areas, the division is performed substantially equally. Subtitle presentation method in a subtitled TV program. 4. The subtitle presentation method for a television program with subtitles according to claim 2, wherein in the first presentation phase, a subtitle display area located at the most downstream in the scroll transition is changed. A subtitle presentation method for a television program with subtitles, characterized in that a subtitle is displayed in another subtitle display area while a subtitle is displayed only in a single presentation phase as much as possible. . 5. The method for presenting a subtitle in a television program with subtitles according to claim 1, wherein the L-shaped subtitle display area includes subtitles converted according to a desired presentation format. For displaying a subtitle in a television program with subtitles. 6. A subtitle presentation method for a subtitled television program according to claim 5, wherein subtitles according to a unique presentation format can be displayed for each of the display areas. Subtitle presentation method in.