KR20060013814A - Apparatus and method for cinema captioning - Google Patents

Abstract

According to the present invention, by separating and projecting images and subtitles using an independent subtitle projection apparatus, the image film can be protected from damage, the shape and color of the subtitles can be arbitrarily determined, and the subtitles are projected at the same position. The present invention relates to a movie subtitle display apparatus and method that can completely solve the problem of subtitle shake.

The present invention comprises a signal receiving unit capable of receiving a signal for synchronizing the image projection time and the subtitle projection time in constructing a caption projection device separate from the image projection device, and if necessary, projects the captions according to the synchronization signal. If you do not receive a signal from the image projection device, or if you do not want to use the image synchronization signal, the fixed time using the image frame counter and clock element built in the subtitle projection device The present invention provides a caption display device and method having a function of projecting a necessary caption onto a screen.

Movie, caption, projection, video film, screen, signal receiver, pixel

Description

Apparatus and method for cinema captioning             

1 is a schematic diagram showing a method for generating and displaying a general movie subtitle

2 is a schematic diagram showing a method for displaying a movie subtitle according to the present invention;

3 is a schematic diagram showing the components of a movie subtitle display device according to the present invention;

4 is a flowchart showing the flow of a method for displaying a movie subtitle according to the present invention.

<Explanation of symbols for main parts of drawing>

1: device main body 2: synchronization signal

3: synchronization signal receiver 4: device support

5 device rotation part 6 light source part

7: central processing unit 8: storage unit

9: subtitle generator 10: lens unit

The present invention relates to an apparatus and method for displaying a subtitle of a movie, and more particularly, by separately projecting an image and a subtitle using an independent subtitle projection apparatus, thereby protecting the image film from damage, and reducing the font shape and color of the subtitle. The present invention relates to a movie subtitle display device and a method which can be set freely and which can completely solve the problem of subtitle shake because a method of projecting subtitles at the same position.

In general, a method of displaying a movie caption uses a film surface etching method in which a caption is chemically engraved on a predetermined portion of an image frame required for a time to be displayed on the image film surface.

Recently, a technique for etching a desired subtitle on an image film by using a laser has been used for more flexible subtitle etching.

As described above, there are some disadvantages that are difficult to solve by the conventional method of etching subtitles on the image film.

There is a method of etching subtitles required on an image film by using a chemical method or a laser to erase only a portion of a character and displaying it. However, since these methods are all permanent methods, they cannot be modified.

Therefore, when additional subtitles are inserted in another letter or language, the subtitles must be newly generated at overlapping or separate positions.

The method of inserting subtitles by erasing the surface of the film is only because the erased part is transparent, so when the background is bright and the color is similar to that of the transparent film, the subtitles are not well distinguished from the background, which results in poor readability. The disadvantage is that subtitles damage part of the image of the movie.

In addition, the subtitles must be etched in the same position very precisely and repeatedly at a certain position on the number of movie frames required while being displayed, otherwise the subtitles will appear to shake, causing inconvenience to the viewer.

As described above, in order to etch a subtitle at the same position, the subtitle must be engraved while moving one frame at a time, so that it takes a long time to generate a subtitle.

In order to improve the disadvantage of the method of etching the caption on the existing film as described above, the caption signal and the audio signal of the video film are detected and separated, and the caption is separated using a separate laser display device. The method of projecting the to a screen is shown.

However, this method can produce relatively bright subtitles, but because the laser is a single wavelength of light, the eyes of the viewer must be refracted by a mechanical method using a mirror rather than rotating it electrically in the desired direction. There is a disadvantage in that the entire subtitle displayed by diffracting the laser at such a high speed that it cannot be continuously recognized as a still type character is displayed.

In addition, since it is displayed as a single wavelength of light, there is a disadvantage that the color cannot be displayed differently when necessary.

Therefore, the present invention has been made in order to solve the above problems, and in the configuration of a caption projection apparatus separate from the image projection apparatus, a signal receiving unit capable of receiving a signal for synchronizing the image projection viewpoint and the caption projection viewpoint. A function of projecting a subtitle according to a synchronization signal if necessary, and a video film embedded inside the subtitle projection device when a signal cannot be received from the image projection device or when no image synchronization signal is to be used. It is an object of the present invention to provide a caption display apparatus and method having a function of projecting necessary captions on a screen for a predetermined time by using an image frame counter and a clock element.

Movie caption display device of the present invention for achieving the above object is configured as a separate device independent of the device for projecting the image on the screen using the image film, the storage device for reading and storing the subtitle file, and projecting the caption And a central processing unit for controlling the light source and the subtitle generating unit according to the data of the subtitle file and the defined control information, and a magnification of the projected subtitle. A lens unit for focusing and focusing, characterized in that it comprises a device base and a device body for supporting and receiving them.

In addition, the main body of the device receives a synchronization signal from the image projection apparatus and the synchronization signal receiving unit for projecting the subtitles on the screen for a necessary time, or the built-in image film counter for projecting the subtitles on the screen for a predetermined time Or it further comprises a clock element.

The apparatus main body may further include a device rotating unit that can change the display position and direction of the caption.

In addition, the apparatus main body is characterized in that it is integrally housed in the main body of the image projection apparatus.

In addition, the caption generating unit is configured of a device in which each pixel portion is controlled by a digital control method, and the pixel control device is driven by software to form a necessary caption.

In addition, the pixel control element may be one of transmitting light of a specific pixel or generating subtitles by reflecting light.

On the other hand, the movie subtitle display method of the present invention for achieving the above object comprises the step of projecting an image on the screen using a video film and at the same time projecting a separate movie subtitle on the screen. It features.

In addition, the process of projecting the separate movie subtitles on the screen includes the steps of reading the stored subtitle file data, determining whether or not a synchronization signal is input from the image projection apparatus, and if there is a synchronization signal synchronization signal Using a self-counter or clock element to provide control information to the central processing unit so that the subtitles can be projected for a predetermined time, and determining whether the direction of the subtitles is vertical. And capturing the caption on the screen using the caption projection device in the vertical direction, and rotating the caption projection device in the vertical direction to adjust the caption in the vertical direction and projecting the caption.

In addition, the subtitle data provided in the step of reading the subtitle file data is characterized in that it is provided in the form of a software file.

In the projecting of the caption on the screen, the projection method is a method of reflecting or transmitting light corresponding to a specific pixel of visible light emitted from a light source by using an element in which each pixel part is controlled by a digital control method. Characterized in that the projection method.

In addition, in the projecting of the subtitles on the screen, the subtitles may be modified, the color and shape may be changed, and the subtitle projection position may be changed.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic diagram showing a method for displaying a movie subtitle according to the present invention.

As illustrated in FIG. 2, an image projection apparatus for projecting an image onto a screen using a movie film and a caption projection apparatus for receiving a caption file and projecting the caption onto the screen are independently configured.

The caption projection apparatus reads the data of the caption file and receives a synchronization signal from the image projection apparatus, if necessary, or projects a caption defined on the screen for a predetermined time using an image film counter or a clock element.

In this case, the subtitle file can obtain the required quantity through software file duplication rather than etching the film as required, as in the past, so that the subtitle file can have higher productivity and economy.

3 is a schematic diagram illustrating components of a movie caption display device according to the present invention.

As shown in FIG. 3, the movie caption display apparatus includes a storage device 8 for reading and storing a caption file, a light source unit 6 for projecting captions, and a caption generation unit for forming captions according to a digital control command. (9), the central processing unit 7 of the function of controlling the light source unit 6 and the subtitle generator 9 in accordance with the data of the subtitle file and the defined control information, the lens unit for focusing the magnification and focus of the projected subtitle (10) a synchronization signal receiver (3) for receiving a synchronization signal from the image projector, if necessary, an apparatus body (1) for accommodating all of them, and an apparatus rotating part for supporting the apparatus body (1) in a rotatable structure (5), the apparatus pedestal 4, etc., and further includes a power supply unit (not shown) required for the electronic device.

The device rotating part 5 is a device capable of changing the posture of the device main body 1, and includes a shaft means at the lower end of the device main body 1, and rotates the device main body 1 in the usual manner. Rotation operation can be implemented.

The function of rotating the caption projection apparatus generally has a very large aspect ratio of the caption configuration, and thus, the caption is generated by rotating the direction of the letters generated by the caption generating element in a controlled manner and simultaneously rotating the caption projection apparatus. This is to increase the area utilization efficiency of the device.

In addition, in the present invention, the configuration of the optical portion for projecting the necessary subtitles is composed of elements in which each pixel portion is controlled by a digital control method, and the pixel control element is driven by software to form the necessary subtitles. Configured.

The device having such a function may be any one of transmitting the light of a specific pixel and generating the necessary caption by reflecting the light.

The image display device provided by the present invention has various advantages over the conventional method of directly injecting subtitles into an image film or a method of separately using a laser display device.

For example, the subtitles can be freely modified or color, shape, etc. can be easily changed to desired ones, and even when the subtitles are to be formed in other languages, the original video has no effect.

In addition, when the background of the caption forming position is close to white light, the distinction from the caption is unclear, thereby overcoming the existing disadvantage that the audience cannot read the caption.

If necessary, the video and subtitles may not be overlapped, and the flexibility of projecting the vertical and horizontal subtitles may be provided.

In addition, even in the productivity of generating subtitles, copying of subtitles and files can be easily repeated by the copy function of the software, thereby obtaining very high productivity and uniform subtitle quality at low cost.

4 is a flowchart showing the flow of a method for displaying a movie caption according to the present invention.

As shown in FIG. 4, here the characteristic operation flow of the method for causing the caption projection apparatus to project captions together with the image projector is shown.

In order to implement a method of displaying a movie image and a subtitle in a separate device, each small pixel is controlled by a digital method, and the visible light emitted from the light source emits light corresponding to a specific pixel or A part for transmitting the subtitle, a part for controlling the subtitle to be projected on the screen according to the subtitle data and control signal of the provided subtitle file for a predetermined time, and, if necessary, to indicate the start and end of the subtitle projection from the image projector (projector). A portion is provided that includes a portion that can accept a triggering signal and a timer element that can measure time.

The caption display method provided by the present invention is a method of projecting an image on a screen using an image film and simultaneously projecting separate movie captions on a screen.

To do this, first, the subtitle file data stored in the storage device is read into the central processing unit.

Next, it is determined whether or not a synchronization signal is input from the image projector, and if there is a synchronization signal, control information is used to allow the subtitle to be projected for a predetermined time using a synchronization signal or a clock element if there is no synchronization signal. It is provided to the central processing unit side.

Next, it is determined whether the direction of the caption is in the vertical direction. If the caption is in the vertical direction, the caption is projected onto the screen using the caption projection apparatus. If the caption is not in the vertical direction, the caption projection apparatus is rotated to adjust the caption in the vertical direction.

In this way, the time point at which the caption is projected on the screen through the caption projection device may be matched by the above synchronization signal or a signal provided from a self-counter or a clock element.

Therefore, the image and the caption can be projected onto the screen independently by the image projector and the caption projection device, respectively.

In addition, the subtitle file data used above is in the form of a software file, and the subtitle projected onto the screen can change the contents, change the color and shape, or change the position where the subtitle is projected.

As described above, the present invention can easily change the subtitle in another language without damaging the image film at all, compared to the existing subtitle generation method of engraving the subtitle directly on the image film, so that it can be maintained without degrading the value of the film. have.

In addition, since the letter shape or color of the subtitle can be arbitrarily determined, the background is bright and the subtitles are not easily distinguished, and the position and direction of the subtitle can be displayed horizontally or vertically as desired.

In addition, the subtitle generation method of etching the subtitle on the existing film has a difficulty that the positional precision of the subtitle etching must be very high so that the shaking of the subtitle is not recognized by the eyes of the audience, the subtitle generation method of the present invention for a necessary time Since the subtitles are projected in the same position, there is no need to maintain mechanical precision as before.                     

In addition, when the same number of subtitles are generated in a required amount, only a subtitle file may be copied by software, and thus the productivity and economy are much higher than those of the conventional method of engraving a subtitle on a film.

Claims (11)

A storage device 8 for reading and storing caption files, a light source unit 6 for projecting captions, and digital control A subtitle generator 9 for forming a subtitle according to the command, a central processing unit 7 for controlling a light source and a subtitle generator according to the data of the subtitle file and defined control information, and a magnification and focus of the projected subtitle. And a lens unit (10), a device support (4) for supporting and accommodating them, and a device main body (1). The apparatus of claim 1, wherein the apparatus main body 1 may receive a synchronization signal from an image projector and project the subtitle on the screen for a predetermined time, or may project the subtitle on the screen for a predetermined time. A movie caption display device further comprising a self-contained video film counter or clock element. The device according to claim 1 or 2, wherein the apparatus main body (1) further comprises a device rotating section (5) capable of changing the display position and direction of the subtitles. The movie subtitle display device according to claim 1, wherein the apparatus main body (1) is integrally housed in the main body of the image projection apparatus. The method according to claim 1, wherein the subtitle generating unit 9 is composed of elements in which each pixel portion is controlled by a digital control method, and the pixel control element is driven by software to form necessary subtitles. Movie subtitle display. The movie caption display apparatus according to claim 5, wherein the pixel control element is one of transmitting light of a specific pixel or generating a necessary caption by reflecting light. A method for displaying a movie caption, comprising: projecting an image on a screen using an image film and simultaneously projecting a separate movie caption on a screen. The method of claim 7, wherein the projecting of the separate movie subtitles onto the screen comprises: reading stored subtitle file data; determining whether a synchronization signal is input from the image projector; Providing control information to the central processing unit so that the subtitles can be projected for a predetermined time by using a synchronization signal if there is a synchronization signal and using a counter or clock element if the synchronization signal is not present; And subtracting the subtitles onto the screen using the subtitle projection device in the vertical direction and rotating the subtitle projection device in the vertical direction to adjust the subtitles in the vertical direction and projecting the subtitles. Display method. The method of claim 8, wherein the subtitle data provided in the step of reading the subtitle file data is provided in the form of a software file. The method of claim 8, wherein in the projecting of the subtitles on the screen, the projection method reflects or transmits light corresponding to a specific pixel of visible light emitted from a light source by using an element in which each pixel portion is controlled by a digital control method. A subtitle display method according to claim 1, wherein the subtitles are projected by the method. The method of claim 8, wherein in the projecting of the subtitles on the screen, the subtitles may be corrected, the color and shape may be changed, and the subtitle projection position may be changed.

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