JP2000295566A - Method and system for editing and reproducing multimedia data and medium for recording multimedia data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a method and a system for editing and reproducing multimedia data by which no deterioration is caused in a moving picture and original moving picture data can be reproduced even when compressed moving picture data are edited and the edit time can be decreased and to obtain a recording medium for the multimedia data. SOLUTION: A recording medium records original data 1A, visual effect data 1B providing a visual effect synchronously with the reproduction of the original data, and reproduction information 19 instructing composite of the data 1A, 1B. The visual effect data 1B are composited with the original data 1A expanded according to the reproduction information 19 recorded on the recording medium and the composited data are displayed so as to provide a visual effect to an irreversibly compressed moving picture without deteriorating its quality.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multimedia data editing / playback method, a multimedia data editing / playback system, and a multimedia data capable of editing and playing moving picture data that can be handled on a computer without deteriorating image quality. It relates to a recording medium.

[0002]

2. Description of the Related Art In recent computer systems, when handling multimedia data including moving image data in which natural colors are reproduced, the data size is enormous in an uncompressed state, so that compression is performed. At present, MPEG (Moving Picture Ex
It is known that moving image compression by Perts Group) is an irreversible compression method that cannot reproduce a complete original state after decompression, although the compression ratio is high. Note that the moving image data described in this specification includes not only images but also sounds and the like.

The irreversible compression method was originally used as a final data format for a recording medium such as a CD-ROM having a high storage capacity, and was rarely processed again. Due to factors such as an increase in processing speed and the spread of large-capacity storage devices, secondary use of these moving image data has become easy, and there has been a demand for re-editing compressed data.

[0004] In the editing work for adding a visual effect to data compressed by the conventional technique, first, image processing in a compressed form cannot be performed in a highly-compressed data format such as MPEG. When the compressed data is decompressed and returned to uncompressed image data consisting of a large number of still images, and a visual effect such as insertion of a character telop is added, the character data is combined with the still image that is the target of the decompressed image data. Then, compression processing is performed again in order to capture the combined still image again as a part of the original moving image.

[0005] Generally, the above-mentioned moving image data is transmitted at a rate of 3 per second.
It has zero still images. For example, when adding a character such as a shooting date to a three-second moving image, 30 images × 3 seconds and 9 characters in total
Zero still images are extracted from the compressed moving image data by decompression, and image processing such as character synthesis is performed. The 90 still images subjected to the image processing are recompressed one by one in order to return to the moving image data again, and are reconstructed into one moving image data. As a document describing the above-mentioned MPEG technology, for example, “Latest MPEG Textbook” issued by ASCII Corporation in 1997 is cited.

[0006]

The editing of compressed moving image data according to the prior art described above involves editing the irreversibly compressed moving image data, even if the compressed data is returned to the non-compressed state. Unable to reproduce all information,
There is a characteristic that an image is deteriorated. Therefore, the prior art is
When the editing work is performed on the degraded image, and it is necessary to add another visual effect after compression again, the degraded image is extracted by decompression, and the visual effect Will be added.

[0007] As described above, in the conventional editing method, when decompression, image processing, and recompression for image processing are repeatedly performed, the image is degraded each time, which is unfavorable in terms of image quality. If it is bad, there is a problem that the number of edits is limited.

Further, in the conventional editing method, since a visual effect image is synthesized and then recompressed, it is impossible to remove only the visual effect part later and reproduce the original moving image data. There was also.

Furthermore, the conventional editing method expands, synthesizes, and recompresses still images constituting a moving image one by one for editing. Therefore, even when performing an editing to add a visual effect of several seconds, the editing time is very long. There was a problem that it took a long time.

[0010] An object of the present invention is to eliminate the above-mentioned disadvantages of the prior art, and it is possible to reproduce the original moving image data without causing image deterioration even when the compressed moving image data is edited. An object of the present invention is to provide a multimedia data editing / playback method, a multimedia data editing / playback system, and a multimedia data recording medium capable of shortening the editing time.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to editing and reproducing multimedia data for displaying on a display device by synthesizing visual effect data for giving a visual effect to irreversibly compressed original data. The method further comprises: separately recording, on a recording medium, original data, visual effect data for providing a visual effect in synchronization with the reproduction of the original data, and reproduction information for instructing synthesis of the original data and the visual effect data. The first feature is that the visual effect data is combined with the original data expanded in accordance with the reproduction information recorded on the display device and displayed on the display device.

According to the present invention, in the method for editing and reproducing multimedia data according to the above feature, the original data and the visual effect data include moving image data composed of a plurality of still images, and are temporally synchronized with the still images of the original data. A second feature is that visual effect data including a plurality of still images having visual effects is created and recorded on a recording medium together with the original data and the reproduction information.

The present invention also relates to a multimedia data editing / playback system for synthesizing visual effect data for giving a visual effect to irreversibly compressed original data and displaying the synthesized data on a display device. Editing means for individually recording, on a recording medium, visual effect data for providing a visual effect in synchronism with reproduction information for instructing the synthesis of the original data and the visual effect data, and recording on the recording medium edited by the editing means A third feature is that a reproduction unit is provided which combines the visual effect data with the original data expanded according to the reproduction information and displays the synthesized data on a display device.

According to the present invention, in the multimedia data editing / playback system according to the above aspect, the original data and the visual effect data include moving image data including a plurality of still images, and the editing means converts the original data into a still image. A fourth feature is that visual effect data composed of a plurality of still images having visual effects synchronized in time is created and recorded on a recording medium together with the original data and the reproduction information.

Further, the recording medium according to the present invention separately records original data, visual effect data for giving a visual effect in synchronization with the reproduction of the original data, and reproduction information for instructing synthesis of the original data and the visual effect data. It is characterized by having done.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a multimedia data editing / playback method, a multimedia data editing / playback system and a multimedia data recording medium according to an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram for explaining a multimedia data editing / playback system to which the multimedia data editing / playback method according to the present embodiment is applied, and FIGS. 2 and 3 show a multimedia data recording medium according to the present embodiment. FIG. 3 is a diagram illustrating a data format of multimedia data to be recorded.

The multimedia data editing and reproducing system shown in FIG. 1 comprises an editing program unit 11 for editing original data such as a movie provided by a data editor 10 and visual effect data such as subtitles on the original data. A data section 12 of a recording medium on which data for synthesizing and reproducing a visual effect with the original data is recorded by the editing program section 11; and the data section 12 is reproduced to synthesize and reproduce the visual effect with the original data. User 14
And a display program (not shown) for providing, for example, a movie with subtitles.

The editing program 11 includes an original data selection unit 17 for selecting original data such as a movie, and a visual effect data to be synthesized with the original data, for example, a visual effect for editing visual effect data such as subtitles. An effect editing unit 15; an encoder 16 for compressing the data edited by the visual effect editing unit 15; and a reproduction information generating unit 18 for generating reproduction information 19 for synthesizing and reproducing the original data and the visual effect data. It is composed of

Data part 12 to be recorded and recorded on a recording medium
Is the reproduction information 19 generated by the reproduction information generation unit 18.
And original effect data 1A selected by the original data selecting section 17 and visual effect data 1B and 1C for storing visual effect data compressed by the encoder 16.

The reproduction program section 13 analyzes the reproduction information 19 and instructs the expansion of the original data 1A and the visual effect data 1B / 1C.
D, a decoder 1E for performing the decompression, and a data user 1
4 includes a reproduction information input unit 1G for inputting reproduction information specified by the instruction unit 4, and a synthesis display unit 1F for synthesizing and displaying the original data and the visual effect data expanded by the decoder 1E.

In the multimedia data editing / playback system configured as described above, the data provider 10 selects the original data, for example, an arbitrary movie by the original data selecting unit 15 using the editing program unit 11 and the visual effect editing unit. The visual information data, for example, the subtitle data is edited by 15 and compressed by the encoder 16, and further, the reproduction information generation unit 18 generates the reproduction information 19 for synthesizing and reproducing the original data and the visual effect data. .

Next, the data provider 10 stores the reproduction information 19, the original data 1A, and the visual effect data 1B and 1C in the data section 12 of a recording medium such as a CD-ROM, and stores this recording medium in the data user. 14 to provide.
In the case of the present embodiment, the visual effect data is, for example, two types in different languages (visual effect data 1C and 1D).
Can be stored.

As described above, in the recording medium according to the present embodiment, the data section 12 including the reproduction information 19, the original data 1A, and the visual effect data 1B and 1C is stored.
As this recording medium, FD, MO, CD-ROM, C
DR and others are conceivable.

Data user 1 receiving this recording medium
4 reproduces the data section 12 of the recording medium by using the reproduction program section 13. This reproduction is performed first by the user 14
Inputs the original data to be reproduced, for example, the title of an arbitrary movie into the reproduction information input section 1G, the reproduction information analysis section 1D analyzes the reproduction information 19, and the decoder 1E
Instructs expansion of the original data and the visual effect data specified in.

This decoder 1E decompresses still images to be displayed at the same time based on time information selected from each data in order to synchronize the moving image data of the original and the visual effect, and synthesizes and displays them. The combined display unit 1F combines the received still images and displays them on a display device (not shown). For example, an operation is performed in which original data of a movie specified by a user is combined with captions in a specified language of visual effect data and displayed.

The original data and the visual effect data included in the data section 12 are independent moving image data, and each moving image data is composed of a continuum of a plurality of still image data and can be reproduced independently. Although these data are independent video data, they have a relationship of "original video" and "video for visual effect". By playing them simultaneously from the beginning, they can be played back as one video data with the same time axis. It is possible. To give a simple example, there is a relationship such as movie data in a foreign language and subtitle data in a native language added later to the movie. Movie data can independently play the image and sound of the movie itself, and can also independently play the subtitle data of the movie that is responsible for subtitles, which is a movie in which only subtitles are displayed at the timing of the original movie Data. In the present invention, such subtitle moving image data is considered as moving image data for visual effects, and is stored separately from the main movie data.

As the above-mentioned visual effect data, in addition to simple character telops such as subtitles, imaginary characters are synthesized, symbols are synthesized, and the color of a certain part is seen as a different color. There are various effects when combined. Further, a plurality of such visual effect data can be simultaneously provided in the visual effect data.

Further, the visual effect data existing as single or plural data can be arbitrarily combined according to the judgment of the data provider or the user, and combined with the original data at the time of reproduction. Further, even if the visual effect data exists in the file, it is not always necessary to combine them, and the effect can be arbitrarily removed, and the original data without the visual effect can be reproduced. Further, even during the reproduction, when the visual effects are combined at an arbitrary timing, when the visual effects are not combined, or the combination of the visual effect data to be combined can be dynamically switched.

Next, the structure of the data section 12 will be described in detail with reference to FIGS. FIG. 2 is a diagram for explaining the details of the data unit shown in FIG. 1, and FIG. 3 is a diagram for explaining the details of the data unit according to another embodiment.

First, as shown in FIG. 2, the file 1A1 forming the data section 12 is composed of reproduction information 19, original data 1A, and two visual effect data 1B and 1C. As indicated by 1A0, the number of moving images included in the data section 19 (original data 1A + visual effect data 1B + visual effect data 1C)
3, the combination information indicating that the start address of each data is the 0th byte, the 100th byte, and the 200th byte, and that the original data 19 and the visual effect data 1B are combined.

This data part is not limited to the file of one data part shown in FIG. 2, but for example, as shown in FIG. 3, reproduction information 19, original data 1A, visual effect data 1B, visual effect data 1C And the files 1B1, 1B3, 1B5, and 1B7 as separate files, and the reproduction information 19 contains the number of moving images (original data 1A + visual effect data 1B + visual effect) included in the data portion 19, as indicated by reference numeral 1B0. Data 1
C) is 3, and the data name of each data is original. m
pg, effectA. mpg, effrctB. mp
g, and may store combination information indicating that the original data 1A and the visual effect data 1B are combined.

FIG. 4 is a conceptual diagram showing what display results are shown by the moving image data included in the original data 1A and the image data included in the visual effect data 1B.

In the figure, reference numeral 21 denotes the original data 1A.
, A plurality of still image data included in the visual effect data 1B, and a reference numeral 22 denotes a plurality of still image data included in the telop included in the visual effect data 1B.
Indicates a data portion composed of the moving image data 21 and the moving image data 22 for visual effects, reference numeral 24 indicates a reproduction result after the data is synthesized, and reference numeral 23 indicates a step of the synthesizing process. The moving image data 21 will be specifically described. The data 21 represents a plurality of still image data continuously representing a state in which a person is moving, and the moving image data 22 for the visual effect has a shooting date “1”. The text telop “month 2” and the still image data of the visual effect created so as to add the moving state of the round ball as a visual effect. In other words, the ball is thrown from the left edge of the screen and flew to the right while drawing a parabola, and the character telop is slightly shifted from the display position for each frame so that it flows from right to left at the bottom of the screen. It represents a moving visual effect.

In the synthesis of the moving image data 21 and 22 according to the present embodiment, in the synthesizing step 23, decompression is started simultaneously from the leftmost frame, and a single moving image of the moving image data 21 in the data section 20 is moved. The still image of the moving image data 22 in which the ball moves and the telop moves for each (one frame) is synthesized and reproduced for each frame (one frame) as shown in the figure, so that the “people” and “ The "ball" and "character telop" are displayed in order from the leftmost frame, and the "ball" flies overhead, centering on the person,
At the bottom of the screen, a visual effect is obtained in which the shooting date flows as a “character telop”. At this time, for the user who is watching the moving image, the visual effect is added and the reproduction is performed as if one moving image data was reproduced.

The moving image data 21 and 22 in FIG.
In each frame, the moving image data is simplified and drawn as five frames to be displayed in chronological order from the leftmost frame to the rightmost frame, and actual moving image data is not stored in this manner. In general moving image data, even if such frames are moving image data for several minutes, thousands of frames are included, and are stored in a form that cannot be displayed immediately as a simple frame due to compression.

FIG. 5 shows an example in which the visual effect data described with reference to FIG. 4 is divided into two pieces, ball data 32 and character telop data 33, and stored. That is, the original data 31
In addition to the above, an example in which a plurality of data for visual effects are included. Ball data 32 and character telop data 3 of visual effect data
3 are treated as separate data, and need not be simultaneously added to the original data as a visual effect of “the ball flies and the shooting date is tickered” as in FIG.

The combination of such data is determined in step 34 of the synthesizing process. As a result, as in the case of FIG. 4, the moving image to be reproduced has a combined result 35 obtained by combining all visual effects, a combined result 36 obtained by combining only ball data, and a combined result 37 obtained by combining only character telops.
You can play videos with various visual effects.

As an example of the above-mentioned subtitles in a foreign language movie and a native language, subtitles of various countries are prepared as subtitle data, and a favorite subtitle can be selected at the discretion of the data provider or user. Can be displayed. In the above embodiment, the visual effect of subtitle data to which a date and a ball telop is added is achieved. However, the present invention provides more visual effect data for the purpose other than the subtitle. You can also. Various visual effects can be produced simply by changing the combination to be combined, and even if a lot of visual effect data is included, only the original data can be instantly reproduced by not performing any combination to be combined .

FIG. 6 is a flowchart of a process for creating the above-described visual effect data 1B. In this processing, first, the user selects original compressed moving image data (step 40), and decodes and displays the selected moving image data and a still image at a position designated by the user (step 4).
1) The user creates a visual effect data by adding a visual effect while referring to the displayed still image (step 4).
2).

When the visual effect data 17 is generated, only the original moving image data is referred to, and no visual effect synthesis or recompression processing is performed on the original data itself. Also, displaying the original video is to make it easier to measure the position and time of the image to which the visual effect is applied, and if the image position and time to add the effect are determined in advance, select and display the original video You don't have to.

The visual effect data created in the editing process is created as independent data. However, it is not necessary that the data is compressed as moving image data during editing, and it is not necessary to be a complete moving image. . This makes it possible to prevent moving image data from being compressed at the editing stage and re-compression due to repeated editing.

The reference of the original image at an arbitrary position and the creation of the visual effect data are sequentially repeated until the selection is completed by the user in step 43. When the creation of the visual effect data is completed, in step 44, the data for the visual effect is encoded (compressed) to create independent data for the visual effect.

When a plurality of effects are included in one visual effect data in step 42, for example, as shown in FIG. 6, when "ball movement" and "character telop" are created by one moving image data 22, steps 41 to 41 The process of step 43 is repeated to create visual effect data. When it is desired to separately combine a plurality of visual effects, for example, as shown in FIG.
In the case where the final display result can be selected by giving them separately as in step 3, the processing of steps 40 to 44 is repeated, and data for visual effects having the respective effects are separately created.

FIG. 7 shows the original moving image data and FIG.
7 is a flowchart of a process representing a program for selecting, decoding, synthesizing, and reproducing a plurality of moving image data for visual effects created in the process shown in FIG. In this processing, the user first selects original moving image data (step 50) and selects moving image data for visual effects to be combined (step 51).
Then, it is determined whether or not the selection of the moving image data for the visual effect has been completed (step 52). If it is not completed in this step 52, the data for the visual effect is selected again, and if it is completed, the data included in the data section 12 in FIG. 2 is determined. In order to be able to select a final display result, a plurality of data for this visual effect may be selected.

Next, the setting of which of the selected files is to be combined, that is, the setting of which visual effect data file is to be combined with the moving image data file (step 53), to create reproduction information (step 53). (Step 54) Then, the selected data and reproduction information are merged to create the file 1A1 in FIG. 2 (Step 55).

Next, the flow of a process for executing the file 1A1 shown in FIG. 2 and reproducing the original moving image data while adding a visual effect will be described with reference to FIG.

In this processing, the reproduction information 19 shown in FIG. 1 first checks the number of moving image data included in the file (step 60), and determines whether the included moving image data is only original data (step 61). If only the original data, the same processing as the conventional moving image data is performed (step 62). In this process, the original data is expanded (step 62), and the expanded moving image data is displayed (step 63). According to the judgment in step 64, the expansion / display is repeated until the data ends, and the reproduction process is performed.

If it is determined in step 61 that the moving image data included in the file is not only the original, the combination of the original to be synthesized and the moving image data of the visual effect is checked (step 65), and then the expansion of the original moving image data is performed. Then, the visual effect data is immediately expanded (step 67). Next, the present process checks whether the data for the combination checked in step 65 has been expanded (step 6).
8) If not, the flow returns to step 67 to expand the next visual effect data N. If it is determined in step 68 that the expansion of all data for the combination has been completed,
Next, the original data and the visual effect data are combined, the combined image data (still image = 1 frame) is displayed (step 6A), and the above steps 65 to 65 are performed until the end of the moving image data is determined in step 6B. 6A is repeated to check the combination. Decompression of original data, expansion of visual effect data, synthesis of expanded still images, and display of synthesized data are repeated to add visual effects by continuous display of many still images. The displayed moving image is displayed. Also, in this processing, the combination of the combined data is checked as needed in step 65, so that the required combination of image effect data can be dynamically changed even during the reproduction of the moving image data.

As described above, the method and system for editing and reproducing multimedia data according to the present embodiment do not modify the original compressed data itself, and separately construct a visual effect image so that the compressed data can be reproduced. These visual effect images are combined immediately after being expanded for playback, and are also played back at the same time.Therefore, the expansion and recompression processes that accompany the image processing in the editing stage are eliminated, resulting in image deterioration and recompression. Will save you time. Further, since the data for the visual effect is separately prepared, the visual effect can be easily removed when it becomes unnecessary, and only the original data can be obtained.

Further, since the visual effect data is stored in the same format as the original data, the program for expanding / reproducing the original data can be directly used for the data processing for the image effect. This means that, like the original data, the visual effect data can be independently reproduced along the time axis. As a result, 10
Even if character data for 3 seconds is synthesized after 2 seconds,
If the playback program simply expands and displays the original data and the data for visual effects in order from the beginning, 10
After a second, a visual effect can be realized. That is, there is no need to prepare synchronization information such as "combine characters for 10 seconds after 3 seconds" and a special program for performing image processing in accordance with the reproduction of the original based on the synchronization information. What is necessary is just to have a program that reproduces moving images that are simultaneously reproduced in different display areas while simply synthesizing them in the same display area.

Further, in the recording medium according to the present invention, since the image of the visual effect is formed separately without modifying the original compressed moving image data itself, the original moving image data can be kept in the initial state. .

[0052]

As described above, according to the method and system for editing and reproducing multimedia data according to the present invention,
The original data and the visual effect data for giving a visual effect in synchronization with the reproduction of the original data and the reproduction information for instructing the synthesis of the original data and the visual effect data were individually recorded on a recording medium, and were recorded on the recording medium. By combining the visual data with the original data expanded in accordance with the reproduction information and displaying the data on the display device, a visual effect can be added to the irreversibly compressed moving image without deteriorating its image quality. Further, since the recompression process is eliminated, the time required for editing can be reduced.

Further, the recording medium according to the present invention separately includes original data, visual effect data for providing a visual effect in synchronization with the reproduction of the original data, and reproduction information for instructing the combination of the original data and the visual effect data. The original moving image data can be kept in the initial state because the image of the visual effect is separately formed without modifying the original compressed moving image data itself.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of an editing / playback system to which a multimedia data editing / playback method according to an embodiment of the present invention is applied.

FIG. 2 is a diagram showing an embodiment of a data format recorded on a recording medium according to the present invention.

FIG. 3 is a diagram showing another embodiment of a data format recorded on a recording medium according to the present invention.

FIG. 4 is a conceptual diagram for explaining a display result of original data and visual effect data reproduced by the method of editing and reproducing multimedia data according to the present invention.

FIG. 5 is a conceptual diagram for explaining a display result based on another example of original data and visual effect data reproduced by the method for editing and reproducing multimedia data according to the present invention.

FIG. 6 is a flowchart showing an outline of processing of a program for creating visual effect data by a multimedia data editing / playback method according to the present invention.

FIG. 7 is a flowchart showing an outline of processing of a program for creating a file of the data format shown in FIG. 2 by a multimedia data editing / playback method according to the present invention;

FIG. 8 is a flowchart showing a processing outline of a program for executing the file shown in FIG. 2 and processing and reproducing moving image data included in the file shown in FIG. 2 by a multimedia data editing / reproduction method according to the present invention;

[Explanation of symbols]

10: data provider, 11: editing program section, 12:
Data section, 13 playback program section, 14: data user, 15: visual effect editing section, 16: encoder, 17:
Original data selector, 18: playback information generator, 1
9: reproduction information, 1A: original data, 1B: visual effect data, 1C: visual effect data, 1D: reproduction information analysis unit, 1E: decoder, 1G: reproduction information input unit, 1F: composite display unit, 1A1: file, 20: Data part, 21:
Original data part, 22: visual effect data part, 23:
Program part, 24: reproduction result.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5C053 FA07 FA14 FA23 GB05 GB21 HA40 JA30 5D044 AB07 CC09 FG21 GK07 GK12 HL09 HL11 HL14 5D110 BB20 CA16 CA18 CA46 CB06 CD15 CM06 FA02

Claims (5)

[Claims] 1. A multimedia data editing / playback method for synthesizing visual effect data for giving a visual effect to lossy-compressed original data and displaying the synthesized data on a display device,
The original data and the visual effect data for giving a visual effect in synchronization with the reproduction of the original data and the reproduction information for instructing the synthesis of the original data and the visual effect data were individually recorded on a recording medium, and were recorded on the recording medium. A method for editing and reproducing multimedia data, comprising combining visual effect data with original data decompressed in accordance with reproduction information and displaying the result on a display device. 2. The method according to claim 1, wherein the original data and the visual effect data include moving image data including a plurality of still images, and the visual effect data including a plurality of still images having a visual effect temporally synchronized with the still image of the original data. 2. The method of editing and reproducing multimedia data according to claim 1, wherein the method is created and recorded on a recording medium together with the original data and reproduction information. 3. A multimedia data editing / playback system for synthesizing visual effect data that gives a visual effect to irreversibly compressed original data and displaying the combined data on a display device, in synchronization with the reproduction of the original data and the original data. Editing means for individually recording, on a recording medium, visual effect data for providing a visual effect and reproduction information for instructing synthesis of the original data and the visual effect data, and reproduction information recorded on the recording medium edited by the editing means. A playback unit for combining visual effect data with the expanded original data and displaying the combined data on a display device. 4. The original data and the visual effect data include moving image data composed of a plurality of still images, and the editing means is configured to convert a plurality of still images having a visual effect temporally synchronized with the still image of the original data. 3. The multimedia data editing and reproducing system according to claim 2, wherein the visual effect data is created and recorded together with the original data and reproduction information on a recording medium. 5. The method according to claim 1, wherein the original data, the visual effect data for providing a visual effect in synchronization with the reproduction of the original data, and the reproduction information for instructing the combination of the original data and the visual effect data are individually recorded. Recording medium.