JP2000259486A - Method and device for html/mheg transformation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate multimedia and hypermedia experts group(MHEG) contents transformation and preparation by transforming the tag of an interpreted text document into format according to the specification of MHEG. SOLUTION: A layout analytic part 13 analyzes a logical document structure by interpreting the tag of a text document contained in a hyper text mark-up language(HTML) among HTML contents to be a transformation source. A format transforming part 15 transforms the format of a reference file constituting HTML contents into format matched with the instruction purpose of MHEG contents. When it is discriminated by the size discrimination of a picture consistency control part 23 that a vertical object size exceeds a vertical presentation size, a correction picture constituting part 25 constitutes a virtual correction picture vertically dividing a virtual display picture. Then, the tag of the interpreted text document is transformed into format according to the specification of MHEG by a tag transforming part 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to at least an HTM
The present invention relates to an HTML / MHEG conversion method used when converting HTML content including an L file into MHEG content including scenario and scene files.
In particular, the HTM using the novel conversion method proposed in the present invention
By solving the compatibility problem between L and MHEG, H
The present invention relates to an HTML / MHEG conversion method and a conversion apparatus capable of extremely easily converting and creating, for example, MHEG content used for digital broadcasting using TML content.

[0002]

2. Description of the Related Art In recent years, social infrastructure related to digital broadcasting in addition to current terrestrial broadcasting has been rapidly improved.

An important point to consider when establishing the position of digital broadcasting as a truly attractive service is that not only programs including video and audio are simply digitized and broadcasted, but also so-called “digital broadcasting”. It is said that there is a point of returning the “payment of the change” to the viewer.

[0004] Here, the "dividend of digitalization" refers to broadcasting various programs that will meet the tastes of viewers belonging to all ages, from infants to the elderly, and the characteristics of digitization. Broadcasting programs with program information etc. by utilizing them, it is possible to quickly find programs that match the viewer's taste from a huge amount of programs sent from multiple broadcasters as if it were a shower. This means preparing a mechanism that allows users to search and view.

[0005]

However, when paying attention to the former broadcasting of various programs out of the above-mentioned "payment of digitization", this means that there are more program options for viewers. Broadcasters who are eager to improve their audience ratings of their broadcast programs have to create and broadcast attractive programs that meet diverse audience preferences under constraints including human resources, time, and costs. However, at this time, there is an inherent problem to be solved such that it is impossible to satisfy this requirement under severe constraint conditions if the conventional program production method is directly followed.

Accordingly, the present inventors have proposed, as one of the means for solving the above-described problems, an HTML (Web site) such as a Web page widely distributed on the Internet and provided on the WWW (World Wide Web) with abundant resources. Hypertext Markup L
anguage) I came up with the idea of using the content.

However, the following new problem has arisen.

[0008] That is, HTML is a language for describing hypertext as its name implies.
The text document of the TML content is structured according to the rules of HTML.

On the other hand, as a mechanism for freely handling multimedia data such as video, audio, text, and still images, MHEG-5 (Multimedia) is considered to be a promising candidate for adoption by broadcasters in Japan. and Hyperme
dia Experts Group part5)
/ IEC13522-5).

[0010] Here, when the HTML content is used as the content of the digital broadcast, what happens when the HTML content is used.
L and MHEG-5 (hereinafter, simply referred to as “MHEG”). The inventors of the present invention have made intensive studies to solve this compatibility problem, and as a result,
The present invention has been reached.

The present invention has been made in view of the above-described circumstances, and solves the compatibility problem between HTML and MHEG by using a novel conversion method proposed by the present invention, thereby utilizing HTML contents. It is therefore an object of the present invention to provide an HTML / MHEG conversion method and a conversion apparatus capable of converting and creating MHEG content used for digital broadcasting very easily.

[0012]

In order to solve the above problems, the invention of claim 1 is used when converting HTML content including at least an HTML file into MHEG content including scenario and scene files. This is an HTML / MHEG conversion method, in which a logical document structure is analyzed by interpreting a tag of a text document included in an HTML file among HTML contents to be converted, and an object layout is grasped from the analysis result. Layout analysis process and MH to be converted
A format setting step of setting a format including a presentation size defined by horizontal and vertical lengths presented by the EG content;
Based on the layout of the objects grasped in the layout analysis step and the format set in the format setting step, the horizontal object size representing the horizontal length of the object represents the presentation size in the horizontal direction A display state configuration step of configuring a virtual display screen in which one or more objects are arranged while optimizing to not exceed the horizontal presentation size; and a virtual display screen configured by the display state configuration step. On the basis of,
A vertical object size representing the vertical length of the virtual display screen is obtained, and a size determination is performed on whether the obtained vertical object size exceeds the vertical presentation size representing the presentation size in the vertical direction. When the determination is made that the vertical object size exceeds the vertical presentation size as a result of the size determination, the screen is determined by determining an optimal division candidate position in the vertical direction of the virtual display screen. A screen consistency adjusting step of adjusting the consistency, and as a result of the size determination in the screen consistency adjusting step, when it is determined that the vertical object size exceeds the vertical presentation size, the optimization is performed. Correction screen forming step of forming a virtual correction screen by vertically dividing the virtual display screen at the divided candidate positions And a tag conversion step of converting the tags of the text document interpreted in the layout analysis step into a format conforming to MHEG regulations, and acquiring MHEG contents including scenario and scene files. .

According to the first aspect of the present invention, first, in a layout analysis step, a logical document structure is analyzed by interpreting a tag of a text document included in an HTML file among HTML contents to be converted. From this analysis result, the layout of the object is grasped. on the other hand,
In the format setting step, a format including a presentation size defined by horizontal and vertical lengths of the MHEG content to be converted is set.

Next, in the display state configuration step, the horizontal object size does not exceed the horizontal presentation size based on the layout of the objects grasped in the layout analysis step and the format set in the format setting step. A virtual display screen in which one or more objects are arranged while optimizing for this purpose is configured.

Next, in a screen consistency adjusting step, a vertical object size of the virtual display screen is obtained based on the virtual display screen formed in the display state forming step, and the obtained vertical object size is set in the vertical direction. A size determination is performed as to whether or not the size exceeds the presentation size. As a result of the size determination, when it is determined that the vertical object size exceeds the vertical presentation size, the optimal size of the virtual display screen in the vertical direction is determined. The screen consistency is adjusted by determining the division candidate portion.

Next, in the correction screen configuration step, when it is determined that the vertical object size exceeds the vertical presentation size as a result of the size determination in the screen consistency adjustment step, the optimized division candidate A virtual correction screen is obtained by vertically dividing the virtual display screen at the location.

In the tag conversion step, the tags of the text document interpreted in the layout analysis step are converted into MHE tags.
Convert to a format that complies with G rules.

Through the above steps, MHEG contents including scenario and scene files are obtained.

As described above, according to the first aspect of the present invention, H
The logical document structure is analyzed by interpreting the tag of the text document included in the TML file, the layout of the object is grasped from the analysis result, and a predetermined framework such as the presentation size of the MHEG content is provided for the grasped object. Horizontal and / or
Or, while appropriately performing optimization processing in the vertical direction, the tags of the interpreted text document are converted into a format in accordance with the MHEG rules.
As a result of being able to solve the compatibility problem between EGs, it is possible to provide an HTML / MHEG conversion method that can very easily convert and create, for example, MHEG content used for digital broadcasting using HTML content. .

According to a second aspect of the present invention, in the HTML / MHEG conversion method according to the first aspect, the HTML content to be converted is referred to in association with a tag of a text document included in the HTML file. It is the gist that the reference file to be included is included.

According to the second aspect of the present invention, the conversion source H
Since the HTML content includes a reference file that is referred to in association with the tag of the text document included in the HTML file, therefore, the HTML / HTML that is most suitable for converting the HTML content including the reference file is used.
The MHEG conversion method can be realized.

Further, according to a third aspect of the present invention, there is provided the HTML / MHEG conversion method according to the second aspect, wherein the format of the reference file is converted into a desired format that matches the presentation purpose of the MHEG content. The gist of the present invention is to further include a format conversion step.

According to the third aspect of the present invention, the method further includes a format conversion step of converting the format of the reference file into a desired format that matches the application of the MHEG content. Then, the process of converting the format of the reference file into a desired format that matches the presentation purpose of the MHEG content is executed as necessary, and as a result, the format is converted to the optimal format for the presentation purpose of the MHEG content. You can get a reference file.

According to a fourth aspect of the present invention, in the HTML / MHEG conversion method according to the third aspect, when the reference file is an image file having a GIF format, the GIF image is converted in the format conversion step. P
The point is to convert the format into an NG image.

According to the fourth aspect of the present invention, when the reference file is an image file having the GIF format, the format conversion step converts the format of the GIF image into a PNG image. In addition, it is possible to obtain a reference file converted into an optimal format for use in presenting MHEG content.

Further, the invention of claim 5 provides the invention of claims 2 to 4
In the HTML / MHEG conversion method according to any one of the above, at least in each of the layout analysis step, the display state configuration step, the screen consistency adjustment step, or the correction screen configuration step, the reference is performed. The gist of the present invention is to execute a process in consideration of a file.

According to the fifth aspect of the present invention, at least in each of the layout analysis step, the display state configuration step, the screen consistency adjustment step, and the correction screen configuration step, a process is performed in consideration of the reference file. Therefore, for example, taking the processing in the layout analysis step as an example, in the layout analysis step, the layout as an entire object included in the HTML content as the conversion source including the object included in the reference file is included. As a result, it is possible to provide a highly accurate HTML / MHEG conversion method suitable for the actual situation.

According to a sixth aspect of the present invention, there is provided the HTML / MHEG conversion method according to any one of the first to fifth aspects, wherein in the display state configuration step, the horizontal object size is set to In configuring a virtual display screen on which one or more objects are arranged while optimizing for the purpose of not exceeding the horizontal presentation size,
When the horizontal direction object size exceeds the horizontal direction presentation size, a virtual display screen in which one or more objects are arranged is configured by sequentially folding back the portion exceeding the horizontal direction presentation size.

According to the sixth aspect of the present invention, in the display state forming step, the horizontal object size is optimized by 1 or 2 while optimizing the horizontal object size so as not to exceed the horizontal presentation size.
In configuring a virtual display screen on which the above objects are arranged, when the horizontal object size exceeds the horizontal presentation size, the portion exceeding the horizontal presentation size is sequentially folded to form a virtual display screen on which one or more objects are arranged. Therefore, for example, when the object is a text sentence, and the horizontal object size presented by the text sentence exceeds the horizontal presentation size, the text portion exceeding the horizontal direction is sequentially wrapped, and As a result of the execution of the optimization process in the horizontal direction, the HTM in a predetermined framework such as the presentation size of the MHEG content
The best HTM to use when faithfully reproducing L content
An L / MHEG conversion method can be provided.

Further, the invention of claim 7 is the invention of claim 1
The HTML / MHEG according to any one of the above items 6 to 6
In the conversion method, as a result of the size determination in the screen consistency adjustment step, the vertical object size,
When it is determined that the size exceeds the vertical presentation size, the unit virtual display screen when the virtual display screen is vertically divided at the optimized division candidate location,
The gist is to arrange a button object that enables a transition operation between the respective display screens.

According to the seventh aspect of the present invention, when it is determined that the vertical object size exceeds the vertical presentation size as a result of the size determination in the screen consistency adjustment step, the optimized division is performed. In each unit virtual display screen when the virtual display screen is vertically divided at the candidate portion, an object that enables a transition operation between the respective display screens is arranged. Therefore, for example, optimization processing in the vertical direction Is provided, it is possible to provide a mechanism capable of executing a transition operation between the unit virtual display screens using, for example, a button object, even when the virtual display screen is vertically divided. it can.

Further, the invention according to claim 8 is the HTML / MHEG conversion method according to any one of claims 1 to 7, wherein the screen consistency adjusting step comprises the display state forming step. In obtaining the vertical object size based on the virtual display screen thus obtained, the gist is that the vertical object size is obtained by integrating the vertical size of each object arranged on the virtual display screen.

According to the eighth aspect of the present invention, in the screen consistency adjusting step, when obtaining the vertical object size based on the virtual display screen formed in the display state forming step, each object arranged on the virtual display screen is obtained. Since it is determined by integrating the vertical size for each,
Therefore, as a result of accumulating the high-precision vertical size of each object, the vertical-direction object size can be obtained with high accuracy.

Further, the invention according to claim 9 is the HTML / MHEG conversion method according to any one of claims 1 to 8, wherein an optimum division candidate position is determined in the screen consistency adjustment step. In this regard, the gist of the present invention is to further include an adjustment input step of allowing an adjustment input operation for optimizing the division candidate portion.

According to the ninth aspect of the present invention, the determination of the optimum division candidate portion in the screen consistency adjustment step further includes an adjustment input step of allowing an adjustment input operation for optimizing the division candidate portion. Therefore, as a result of providing a mechanism that allows an adjustment input operation related to the optimization of the division candidate portion, the determination of the optimal division candidate portion in the screen consistency adjustment step further increases the optimization accuracy. We can expect improvement.

The invention according to claim 10 is an HTML / MHEG conversion device for converting HTML content including at least an HTML file into MHEG content including scenario and scene files, wherein the HTML content of the conversion source is included. Among them, a layout analysis unit for analyzing a logical document structure by interpreting a tag of a text document included in an HTML file and grasping a layout of an object from the analysis result, and a horizontal and vertical display of MHEG content to be converted. A format setting unit for setting a format including a presentation size defined by a direction length; a layout of the object grasped by the layout analysis unit; and a format of the object based on the format set by the format setting unit. A horizontal object representing the horizontal length Display state configuring means for configuring a virtual display screen on which one or more objects are arranged while optimizing for the purpose of not exceeding a horizontal presentation size representing the presentation size in the horizontal direction, and the display A vertical object size representing a vertical length of the virtual display screen is determined based on the virtual display screen configured by the state configuration unit, and the determined vertical object size represents the presentation size in the vertical direction. Performing a size determination as to whether the size exceeds the vertical presentation size, and as a result of the size determination, when it is determined that the vertical object size exceeds the vertical presentation size, Screen consistency adjustment means for adjusting screen consistency by determining an optimal division candidate position in the vertical direction; As a result of the size determination by the screen consistency adjustment means, when it is determined that the vertical object size exceeds the vertical presentation size, the virtual display screen is vertically shifted at the optimized division candidate position. And a tag conversion unit configured to convert a tag of the text document interpreted by the layout analysis unit into a format conforming to MHEG rules. The gist is to acquire MHEG content including each file.

According to the tenth aspect, first, the layout analysis means analyzes the logical document structure by interpreting the tag of the text document included in the HTML file in the HTML content to be converted. From this analysis result, the layout of the object is grasped. On the other hand, the format setting means sets a format including a presentation size defined by the horizontal and vertical lengths of the MHEG content to be converted.

Next, based on the layout of the objects grasped by the layout analyzing means and the format set by the format setting means, the display state forming means does not make the horizontal object size exceed the horizontal presentation size. A virtual display screen in which one or more objects are arranged while optimizing for this purpose is configured.

Next, the screen consistency adjusting means obtains the vertical object size of the virtual display screen based on the virtual display screen constituted by the display state forming means, and determines the obtained vertical object size in the vertical direction. A size determination is performed as to whether or not the size exceeds the presentation size. As a result of the size determination, when it is determined that the vertical object size exceeds the vertical presentation size, the optimal size of the virtual display screen in the vertical direction is determined. The screen consistency is adjusted by determining the division candidate portion.

Next, when the correction screen composing means judges that the vertical object size exceeds the vertical presentation size as a result of the size judgment by the screen consistency adjusting means, the optimized division candidate A virtual correction screen is obtained by vertically dividing the virtual display screen at the location.

The tag conversion means converts the tag of the text document interpreted by the layout analysis means into MHE.
Convert to a format that complies with G rules.

The MHEG contents including the scenario and scene files are obtained through the above-described processes.

Thus, according to the tenth aspect of the present invention,
The logical document structure is analyzed by interpreting the tag of the text document included in the HTML file, the layout of the object is grasped from the analysis result, and a predetermined framework such as the presentation size of the MHEG content is provided for the grasped object. While taking into account, while appropriately performing optimization processing in the horizontal and / or vertical directions as necessary,
Since the interpreted text document tags are converted into a format conforming to the MHEG regulations, the HTML and M
As a result of being able to solve the compatibility problem between HEGs, it is possible to provide an HTML / MHEG conversion device that can very easily convert and create MHEG contents used for digital broadcasting, for example, using HTML contents. .

[0044]

BEST MODE FOR CARRYING OUT THE INVENTION The HTML /
An embodiment of an MHEG conversion method and an MHEG conversion device will be described in detail with reference to the drawings.

FIG. 1 shows an HTML / MHEG according to the present invention.
Schematic block configuration diagram of a conversion device embodying the conversion method,
FIG. 2 is a conceptual diagram showing a difference in page configuration between HTML and MHEG, and FIGS. 3 and 4 are HTML / MH according to the present invention.
It is explanatory drawing showing the conversion process of the EG conversion method.

Prior to the description of the present invention, SGML (Stand
HTML (Hyper Text Ma) which is a structured language for computers based on ard Generalized Markup Language
rkupLanguage) from the TV set top
MHEG (Multimediaan) developed with the goal of presenting multimedia for boxes (hereinafter referred to as “STB”)
d) The points that are obstacles to the smooth conversion to the Hypermedia Experts Group), that is, important points to be considered in ensuring compatibility between HTML and MHEG, are listed below.

First, there is a difference in the position designation method.

In HTML, the position of an object including a text and an image is relatively designated. As a result, when the size of the window on the browser side changes, the presentation method also changes accordingly.

On the other hand, in the MHEG, in order to realize a predetermined presentation method without depending on the browser side, it is required to absolutely designate the position of the object.

Second, there is a difference in the page configuration.

In HTML, there is basically no concept of page size, and there is no limit on the size of one page. For this reason, screen scrolling is provided as a mechanism for freely browsing the target screen.

On the other hand, in MHEG, the upper limit of the page size is defined as the presentation size. Also, MHEG
Has been developed on the premise that an operator's intention is input via a remote control operation on the STB, and there is a design concept that does not allow scrolling. For this reason, as a mechanism for freely browsing the target screen, a button object that enables transition between pages is prepared instead of screen scrolling.

Third, there is a difference between tags.

In HTML, the logical structure and style of a document, or actions such as link destination designation shown in FIG. 2A are described using elements called tags.

On the other hand, in the MHEG, the designation of the position (layout) on the screen when outputting the content, the designation of the output timing, and the like are performed using a scenario, a scene (page), and the like as shown in FIG. expressing.

Summarizing the above, the important points to be considered in securing compatibility between HTML and MHEG are as follows.
Second, the position designation of an object is converted from a relative designation to an absolute designation.
The page is defined as M with a predetermined presentation size of a finite area.
Dividing into HEG pages, converting the divided pages into a scenario structure, and thirdly, adding HTML tags to MHEG
, In other words, H
It can be said that the logical structure of the document is analyzed by interpreting the TML tags and links, and the document is converted into the structure of the MHEG scenario.

In view of the above-mentioned important points, the present inventors have converted HTML contents including at least HTML files into M-files including scenario and scene files.
With the intention of converting to HEG content, the following HTML / MHEG conversion method has been conceived.

That is, the HTML / MHE according to the present invention
The G conversion method includes a layout analysis step of analyzing a logical document structure by interpreting a tag of a text document included in an HTML file among HTML contents to be converted, and grasping a layout of an object from the analysis result. A format setting step of setting a format including a presentation size defined by the horizontal and vertical lengths of the MHEG content to be converted; a layout of the object grasped in the layout analysis step; Based on the set format, 1 or 2 while optimizing the horizontal object size representing the horizontal length of the object so as not to exceed the horizontal presentation size representing the presentation size in the horizontal direction A display state configuration step of configuring a virtual display screen on which the above objects are arranged; Based on the virtual display screen configured in the display state configuration step, a vertical object size representing a vertical length of the virtual display screen is obtained, and the obtained vertical object size is the presentation size in the vertical direction. Performing a size determination as to whether the vertical object size exceeds the vertical presentation size, and as a result of the size determination, determining that the vertical object size exceeds the vertical direction presentation size; A screen consistency adjustment step of adjusting the screen consistency by determining an optimal division candidate position in the vertical direction of the screen, and a result of the size determination in the screen consistency adjustment step, the vertical direction object size is determined in the vertical direction. When it is determined that the size exceeds the presentation size, the virtual display screen is displayed at the optimized division candidate position. A correction screen configuration step of configuring the virtual correction screen divided in the vertical direction,
And a tag conversion step of converting the tags of the text document interpreted in the layout analysis step into a format conforming to MHEG regulations, and acquiring MHEG contents including scenario and scene files.

According to the HTML / MHEG conversion method,
First, in the layout analysis process, the HT as the conversion source
The logical document structure is analyzed by interpreting the tag of the text document included in the HTML file in the ML content, and the layout of the object is grasped from the analysis result. On the other hand, in the format setting step, the conversion destination M
A format including a presentation size defined by the horizontal and vertical lengths of the HEG content is set. Note that HTM
To interpret the tag of the text document included in the L file, for example, the style of the text document is changed to CSS (Cascadin
g Style Sheet), use CSS
And the interpretation of In addition, the above-mentioned presentation size has an aspect ratio of 4: 3 for a standard television image (SDTV) or 1 for a high-definition image (HDTV).
The aspect ratio of 6: 9 may be selectively set as appropriate according to the purpose.

Next, in the display state configuration step, the horizontal object size does not exceed the horizontal presentation size based on the layout of the objects grasped in the layout analysis step and the format set in the format setting step. A virtual display screen in which one or more objects are arranged while optimizing for this purpose is configured.

Next, in the screen consistency adjustment step, the vertical object size of the virtual display screen is obtained based on the virtual display screen formed in the display state forming step, and the obtained vertical object size is set in the vertical direction. A size determination is performed as to whether or not the size exceeds the presentation size. As a result of the size determination, when it is determined that the vertical object size exceeds the vertical presentation size, the optimal size of the virtual display screen in the vertical direction is determined. The screen consistency is adjusted by determining the division candidate portion.

Next, in the correction screen configuration step, when it is determined that the vertical object size exceeds the vertical presentation size as a result of the size determination in the screen consistency adjustment step, the optimized division candidate A virtual correction screen is obtained by vertically dividing the virtual display screen at the location.

In the tag conversion step, the tag of the text document interpreted in the layout analysis step is
Convert to a format that complies with G rules.

Through the above steps, MHEG contents including scenario and scene files are obtained.

As described above, according to the HTML / MHEG conversion method, the logical document structure is analyzed by interpreting the tag of the text document included in the HTML file, and the layout of the object is grasped from the analysis result. While taking into account a predetermined framework, such as the presentation size of MHEG content, with respect to the grasped object, optimization processing in the horizontal and / or vertical directions is appropriately performed as necessary, while the tag of the interpreted text document is added. , M
Since it is converted into a format according to the HEG rules,
As a result of solving the compatibility problem between HTML and MHEG, MHEG content used for digital broadcasting, for example, can be converted and created very easily using HTML content.

The HTML / MHEG conversion method is as follows.
Without being limited to the above-described embodiment, various modifications described below can be allowed.

That is, for example, the conversion source HTML
The content is allowed to include a reference file referred to in association with a tag of a text document included in the HTML file.

In this way, H including the reference file
HTML / MH optimal for conversion of TML content
An EG conversion method can be realized.

Further, it is permitted to further include a format conversion step of converting the format of the reference file into a desired format that matches the use of the MHEG content.

In this manner, in the format conversion step, the process of converting the format of the reference file into a desired format that matches the purpose of presentation of the MHEG content is executed as necessary.
It is possible to obtain a reference file converted into an optimal format for use in presenting EG content.

Further, if the reference file is a GIF (Graphics
When the image file has an Interchange Format), the format conversion step allows format conversion of the GIF image into a PNG (Portable Network Graphics) image. Here, PNG is
W3C (World Wide WebConso
rtium) is recommended as an image format in WWW, and can be said to be an image format suitable for digital broadcasting.

In this way, it is possible to obtain a reference file converted into an optimal format for use in presenting MHEG content.

Further, at least the layout analysis step, the display state configuration step, the screen consistency adjustment step,
Alternatively, in each of the correction screen configuration steps, it is allowed to execute a step process in consideration of the reference file.

By doing so, for example, taking the processing in the layout analysis step as an example, in the layout analysis step, the object included in the reference file is included, in other words, included in the HTML content to be converted. As a result of being able to grasp the layout of the entire object, high-precision HTML that matches the actual situation
/ MHEG conversion method can be provided.

Further, in the display state composing step, a virtual display screen in which one or more objects are arranged while optimizing the horizontal object size so as not to exceed the horizontal presentation size is considered. When the horizontal object size exceeds the horizontal presentation size, the portion exceeding the horizontal presentation size is sequentially folded back to 1 or 2
It is allowed to configure a virtual display screen on which the above objects are arranged.

In this way, for example, when the object is a text document and the size of the horizontal object presented by the text document exceeds the horizontal presentation size, as shown in FIG. Line breaks are sequentially wrapped over the text portion that exceeds, so that the horizontal optimization process is performed on the object. As a result, when the HTML content is faithfully reproduced in a predetermined framework such as the presentation size of the MHEG content. To provide an optimal HTML / MHEG conversion method.

Further, as a result of the size determination in the screen consistency adjustment step, when it is determined that the vertical object size exceeds the vertical presentation size,
As shown in FIG. 4, each unit virtual display screen when the virtual display screen is vertically divided at the optimized division candidate position has an object that enables a transition operation between each display screen, that is, each page. 29 are allowed to be located. More specifically, as shown in FIG. 4, for example, in a page where the original is united by HTML, the MHE
In G, the screen is divided so as to be arranged in series according to the scenario, and a button object 29 used for inputting a page transition is arranged for each of the divided pages.

In this way, even if the virtual display screen is divided in the vertical direction by performing the optimization processing in the vertical direction, for example, the transition operation between the unit virtual display screens is performed. Can be provided using the button object 29.

Further, in the screen consistency adjusting step, when the vertical object size is obtained based on the virtual display screen formed in the display state forming step, the vertical size of each object arranged on the virtual display screen is determined. It is allowed to obtain by integrating. In addition, since each HTML tag has its own object size, it is possible to accumulate the vertical size of each object.

In this way, the vertical object size can be obtained with high accuracy as a result of integrating the vertical size with high accuracy for each object.

Further, in deciding an optimum division candidate portion in the screen consistency adjustment step, it is permitted to further include an adjustment input step for permitting an adjustment input operation for optimizing the division candidate portion.

In this manner, as a result of providing a mechanism for allowing an adjustment input operation for optimizing a division candidate portion, when the optimum division candidate portion is determined in the screen consistency adjustment step, the optimization is performed. A further improvement in accuracy can be expected.

Next, an HTML / MHEG conversion device 11 embodied by hardware in which the above-described HTML / MHEG conversion method is programmed and installed.
Converts HTML content including at least HTML files into MHE including scenario and scene files.
It has a function of converting to G content.

More specifically, as shown in FIG. 1, the HTML / MHEG conversion device 11 includes a layout analysis unit 13 functioning as a layout analysis unit, a format conversion unit 15, and a format setting unit functioning as a format setting unit. 17, a display state configuration unit 19 functioning as a display state configuration unit, an adjustment input unit 21, a screen consistency adjustment unit 23 functioning as a screen consistency adjustment unit, and a correction screen configuration unit functioning as a correction screen configuration unit 25 and a tag conversion unit 27 functioning as a tag conversion unit.

The layout analysis unit 13 outputs the H
It has a function of analyzing the logical document structure by interpreting the tag of the text document included in the HTML file in the TML content, and grasping the layout of the object from the analysis result.

The format conversion unit 15 converts the format of the reference file that constitutes the HTML content into
It has a function of converting the MHEG content into a desired format that matches the intended use.

The format setting unit 17 stores the MHEG to be converted.
It has a function of setting a presentation size defined by the horizontal and vertical lengths of the content and a format including the number of character points at the time of presentation. In the format set here, the parameter can be changed to an appropriate value by the setting operation of the operator.

The display state configuration unit 19 determines that the horizontal object size does not exceed the horizontal presentation size based on the layout of the objects grasped by the layout analysis unit 13 and the format set by the format setting unit 17. In consideration of this, for example, a function to configure a virtual display screen on which one or two or more objects are arranged while performing optimization including a line return process of a text object, a reduction process of an image object, and the like is provided. I have.

The adjustment input unit 21 includes a screen consistency adjustment unit 23
Is used when performing an adjustment input operation related to optimizing a division candidate location in determining an optimal division candidate location.
As a result, as a result of providing a mechanism that allows an adjustment input operation related to optimization of a division candidate location, when the screen consistency adjustment unit 23 determines an optimal division candidate location,
Further improvement of the optimization accuracy can be expected.

The screen consistency adjusting section 23 obtains the vertical object size of the virtual display screen based on the virtual display screen formed by the display state forming section 19, and displays the obtained vertical object size in the vertical direction. A size determination is performed as to whether or not the size exceeds the size, and when it is determined that the vertical object size exceeds the vertical presentation size as a result of the size determination, an optimal division candidate in the vertical direction of the virtual display screen is determined. It has a function of adjusting the screen consistency by determining the location.

In executing the optimization in the vertical direction, for example, when a text object having one unit is divided, the validity of a page break point in consideration of the connection of texts in the text object is verified. Shall be. Note that division of an image object having one unit is prohibited in principle, and when a request to divide an image object occurs, the image object is handled by scaling processing such as reduction. In addition, in performing the optimization in the vertical direction, the optimization is performed in consideration of the fact that the rearranged objects are uniformly laid out.

When the screen consistency adjustment unit 25 determines that the vertical object size exceeds the vertical presentation size as a result of the size determination in the screen consistency adjustment unit 25, the correction screen configuration unit 25 determines the optimized division candidate position at the optimized division candidate position. It has a function of forming a virtual correction screen obtained by dividing the virtual display screen in the vertical direction.

The tag conversion unit 27 converts the tag of the text document interpreted by the layout analysis unit 13 into the MHEG
And has a function of converting to a format conforming to the rules of

The HTML / MHEG configured as described above
According to the conversion device 11, the logical document structure is analyzed by interpreting the tag of the text document included in the HTML file, the layout of the object is grasped from the result of the analysis, and the MHEG content Since the horizontal and / or vertical optimization processing is appropriately performed as necessary while considering a predetermined framework such as a presentation size, the interpreted text document tags are converted into a format conforming to the MHEG rules. ,
Therefore, as a result that the compatibility problem between HTML and MHEG can be solved, HTML / M that can convert and create MHEG content used for digital broadcasting, for example, very easily using HTML content can be obtained.
An HEG conversion device can be provided.

The present invention is not limited to the above-described embodiment, but may be modified in any other manner by appropriately modifying the technical idea described in claims. Needless to say, it can be implemented in

[0096]

As described above in detail, according to the first or tenth aspect of the present invention, the logical document structure is analyzed by interpreting the tags of the text document included in the HTML file, and the result of the analysis is obtained. While the layout of the object is grasped from, and the grasped object is appropriately subjected to the optimization processing in the horizontal and / or vertical directions as necessary while considering a predetermined framework such as the presentation size of the MHEG content, the interpretation is performed. Since the tag of the text document is converted into a format in accordance with the rules of MHEG,
Therefore, as a result that the compatibility problem between HTML and MHEG can be solved, it is possible to very easily convert and create MHEG content used for digital broadcasting, for example, using HTML content.

According to the second aspect of the present invention, an optimal H used for converting HTML content including a reference file is used.
A TML / MHEG conversion method can be realized.

Further, according to the third aspect of the present invention, in the format conversion step, the process of converting the format of the reference file into a desired format that matches the application of the MHEG content is executed as necessary. As a result, it is possible to obtain a reference file converted into an optimal format for use in presenting MHEG content.

According to the fourth aspect of the present invention, when the reference file is an image file having the GIF format, the format conversion step converts the GIF image into a PNG image.
Since the format is converted into an image, it is possible to obtain a reference file converted into an optimal format for use in presenting MHEG content, similarly to the third aspect of the present invention.

According to the fifth aspect of the present invention, for example, taking the processing in the layout analysis step as an example, the layout analysis step includes an object included in the reference file, in other words, becomes a conversion source. As a result of being able to grasp the layout of the entire object included in the HTML content, it is possible to provide a highly accurate HTML / MHEG conversion method suited to the actual situation.

Further, according to the invention of claim 6, for example, when the object is a text document,
If the horizontal object size of the text sentence exceeds the horizontal presentation size, the text portion exceeding the horizontal presentation size is sequentially turned over, and the horizontal optimization process is performed on the object as a result.
It is possible to provide an optimal HTML / MHEG conversion method to be used when faithfully reproducing HTML content within a predetermined framework such as a presentation size of MHEG content.

Further, according to the present invention, even if the virtual display screen is divided in the vertical direction by performing the optimization process in the vertical direction, for example, each unit virtual A mechanism capable of executing a transition operation between display screens using, for example, a button object can be provided.

Further, according to the eighth aspect of the present invention, the vertical object size can be obtained with high accuracy as a result of integrating the vertical size with high accuracy for each object.

According to the ninth aspect of the present invention, as a result of providing a mechanism for allowing an adjustment input operation for optimizing a division candidate portion, an optimal division candidate portion is determined in the screen consistency adjustment step. In this case, there is an extremely excellent effect that further improvement of the optimization accuracy can be expected.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of a conversion apparatus embodying an HTML / MHEG conversion method according to the present invention.

FIG. 2 is a conceptual diagram illustrating a difference in a page configuration between HTML and MHEG.

FIG. 3 is an explanatory diagram showing a conversion process of an HTML / MHEG conversion method according to the present invention.

FIG. 4 is an explanatory diagram showing a conversion process of the HTML / MHEG conversion method according to the present invention.

[Explanation of symbols]

 Reference Signs List 11 HTML / MHEG conversion device 13 Layout analysis unit (layout analysis unit) 15 Format conversion unit 17 Format setting unit (format setting unit) 19 Display state configuration unit (display state configuration unit) 21 Adjustment input unit 23 Screen consistency adjustment unit ( Screen consistency adjustment means) 25 Correction screen configuration unit (correction screen configuration unit) 27 Tag conversion unit (tag conversion unit)

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Takeshi Kimura 1-1-1, Nishiasakusa, Taito-ku, Tokyo Inside the Next Generation Information and Broadcasting System Research Laboratories (72) Inventor Nobuo Saito 1-5, Taito, Taito-ku, Tokyo No. 1 Letterpress Printing Co., Ltd. (72) Inventor Masanobu Tanaka 1-5-1, Taito, Taito-ku, Tokyo Letterpress No. 1 (72) Inventor Riki Ono 1-5-1, Taito, Taito-ku, Tokyo No. Toppan Printing Co., Ltd. F-term (reference) 5B082 GA02

Claims (10)

[Claims] An HT including at least an HTML file
HT used when converting ML content into MHEG content including scenario and scene files
An ML / MHEG conversion method, in which a logical document structure is analyzed by interpreting a tag of a text document included in an HTML file among HTML contents to be converted, and an object layout is grasped from the analysis result. A layout analysis step, a format setting step of setting a format including a presentation size defined by the horizontal and vertical lengths of the MHEG content to be converted, a layout of objects grasped in the layout analysis step, Based on the format set in the format setting step, optimization is performed with the intention that the horizontal object size representing the horizontal length of the object does not exceed the horizontal presentation size representing the presentation size in the horizontal direction. A virtual display screen on which one or more objects are arranged. A display state configuration step, based on the virtual display screen configured in the display state configuration step, obtains a vertical object size representing a vertical length of the virtual display screen, and the obtained vertical object size is: A size determination is made as to whether or not a vertical presentation size representing the presentation size in the vertical direction is exceeded, and as a result of the size determination, a determination is made that the vertical object size exceeds the vertical presentation size. A screen consistency adjustment step of adjusting the screen consistency by determining an optimal division candidate position in the vertical direction of the virtual display screen; and, as a result of the size determination in the screen consistency adjustment step, the vertical object When it is determined that the size exceeds the vertical presentation size, the optimized division candidate item is determined. A correction screen configuration step of forming a virtual correction screen obtained by dividing the virtual display screen in the vertical direction, and a tag conversion step of converting the tag of the text document interpreted in the layout analysis step into a format conforming to MHEG regulations And MHE including scenario and scene files.
HTML / M characterized by acquiring G contents
HEG conversion method. 2. The HTML / MHEG conversion method according to claim 1, wherein the HTML content to be converted is the HTML content.
HTML including a reference file referred to in association with a tag of a text document included in the file
/ MHEG conversion method. 3. The HTML / MHEG conversion method according to claim 2, wherein the format of the reference file is the MHEG.
An HTML / MHEG conversion method, further comprising a format conversion step of converting the content into a desired format suitable for the presentation purpose of the content. 4. The HTML / MHEG conversion method according to claim 3, wherein when the reference file is an image file having a GIF format, the format conversion step converts the format of the GIF image into a PNG image. HTML /
MHEG conversion method. 5. The HTML / MHEG conversion method according to claim 2, wherein at least the layout analysis step, the display state configuration step, the screen consistency adjustment step, or The HTML / MHEG conversion method, wherein in each of the correction screen configuration steps, a step process is performed in consideration of the reference file. 6. The HTML / MHEG conversion method according to claim 1, wherein in the display state configuration step, the horizontal direction object size does not exceed the horizontal direction presentation size. 1 or 2 while optimizing for
In constructing a virtual display screen on which the above objects are arranged, when the horizontal object size exceeds the horizontal presentation size, a virtual display screen on which one or more objects are arranged by sequentially folding back the excess part. HTML / M characterized by comprising
HEG conversion method. 7. The HTML / MHEG conversion method according to claim 1, wherein as a result of the size determination in the screen consistency adjusting step, the vertical direction object size is set in the vertical direction. When it is determined that the size exceeds the presentation size, the unit virtual display screen when the virtual display screen is vertically divided at the optimized division candidate position includes a transition operation between the respective display screens. An HTML / MHEG conversion method, wherein an object that enables the conversion is arranged. 8. The HTML / MHEG conversion method according to claim 1, wherein in the screen consistency adjusting step, the image consistency adjusting step is performed based on a virtual display screen configured in the display state configuring step. A vertical object size obtained by multiplying the vertical size of each object arranged on the virtual display screen by calculating the vertical object size.
ML / MHEG conversion method. 9. The HTML / MHEG conversion method according to claim 1, wherein an optimal division candidate location is determined in the screen consistency adjustment step. An HTML / MHEG conversion method, further comprising an adjustment input step of allowing an adjustment input operation related to optimization. 10. H including at least an HTML file
HTML / MHE for converting TML content to MHEG content including scenario and scene files
A layout converter that analyzes a logical document structure by interpreting a tag of a text document included in an HTML file among HTML contents to be converted, and grasps a layout of an object from the analysis result. Means, format setting means for setting a format including a presentation size defined by the horizontal and vertical lengths of the MHEG content to be converted, an object layout grasped by the layout analyzing means, and the format setting While optimizing the horizontal object size representing the horizontal length of the object on the basis of the format set by the means so as not to exceed the horizontal presentation size representing the presentation size in the horizontal direction, 1 Or, a display state structure constituting a virtual display screen on which two or more objects are arranged. Means, a vertical object size representing a vertical length of the virtual display screen is determined based on the virtual display screen configured by the display state configuring means, and the determined vertical object size is determined in the vertical direction. Performing a size determination related to whether or not exceeds the vertical presentation size representing the presentation size, as a result of the size determination, when it is determined that the vertical object size exceeds the vertical presentation size, Screen consistency adjustment means for adjusting screen consistency by determining an optimal division candidate location in the vertical direction of the virtual display screen, As a result of the size determination in the screen consistency adjustment means, the vertical direction object size, When it is determined that the size exceeds the vertical presentation size, the virtual division candidate location is Correction screen configuration means for forming a virtual correction screen obtained by dividing a display screen in the vertical direction; and tag conversion means for converting the tag of the text document interpreted by the layout analysis means into a format conforming to MHEG regulations. , MHE including each file of scenario, scene and scene
HTML / M characterized by acquiring G content
HEG converter.