KR20010062018A - Method and apparatus for editing motion picture - Google Patents

Abstract

PURPOSE: A moving picture compression edition method and moving picture edition apparatus and moving picture reservation regeneration apparatus using the compression edition method are provided to make coding background picture with a high compression rate by making a preprocessed background picture to be basis of moving picture and coding by a frame unit in a still picture compression method. CONSTITUTION: A series of basis picture file is generated by coding a background picture to be digitalized frame by frame in a still picture compression method(101). And then the basis picture file is decoded and is indicated by a frame unit at an indicating screen(102). And then a series of edition picture is generated by synthesizing multimedia element like as character, diagram, sound(103). And then finally a series of moving picture file is generated by coding the edition picture generated in a moving picture compression method(104).

Description

Compression editing method of moving picture and moving picture editing device using moving compression editing method and moving picture preservation and reproducing device {METHOD AND APPARATUS FOR EDITING MOTION PICTURE}

The present invention relates to a compression editing method of a moving picture capable of generating a low-capacity, high-definition, editable edited moving picture file, a moving picture editing device for realizing the method, and a moving picture saving and reproducing device for storing and reproducing a compressed moving picture file.

In recent years, transmission of moving images has been expanded using the Internet. However, in order to reduce the transmission capacity of the network, it is necessary to encode moving images and reduce their data capacity.

In order to encode a moving image, the MPEG method has become a mainstream encoding method. In such an MPEG method, a high compression ratio is used to insert a reference picture adjacent to a reference at the time of reproduction at a predetermined interval, and to compress a frame image before and after with differential information. To encode a moving picture.

However, in order to ensure the image quality of a moving image, it is necessary to increase the number of pixels of the image and to reduce the compression rate. However, in order to cope with an internet environment having a low transmission speed, the encoding is performed with a small number of pixels and a high compression rate. As a result, the image quality of the compressed moving image is deteriorated, and if the full screen is displayed on the personal computer (PC) or the playback of the moving image is paused, the deterioration of the image becomes more noticeable.

In addition, the display may be displayed on a small screen so that the deterioration of the moving image is not noticeable, or the image quality is deteriorated.

SUMMARY OF THE INVENTION The present invention provides a moving picture compression editing method capable of generating a high quality edited moving picture file at a low capacity in view of the above circumstances, and provides a moving picture editing device for realizing this method and a moving picture saving and reproducing device for storing and reproducing a compressed moving picture file. There is this.

1 is a flowchart for explaining the basic procedure of the compression editing method of the present invention.

Fig. 2 is a diagram showing an example of main components of the moving picture editing apparatus of the present invention.

3 is a view for explaining the function of the video capture software.

4 is a diagram for explaining the function of a moving picture editing / MPEG compression software.

5 is a diagram showing an example of the configuration of the edited moving picture file saving means.

6 is a diagram showing an example of main components of a moving picture saving and reproducing apparatus.

7 is a diagram illustrating an example of the configuration of a top page.

8 shows an example of the configuration of a list of edited moving image files.

Fig. 9 is a diagram showing an example of an edited moving picture file that is reproduced and displayed.

10 is a diagram showing an example of the configuration of the playback display mode setting screen.

Explanation of symbols on the main parts of the drawings

1: moving picture editing device 2: video deck

3: display 10: video capture

11 A / D conversion circuit 12 JPEG compression means

13 image processing apparatus 14 moving image file saving means

15: Video capture software 16: Video editing, MPEG compression software

17: means for saving an edited video file 18: means for recording an edited video file

19: operation means 20: video playback means

21: signal output means

The compression editing method according to claim 1 of the present invention for achieving the above object generates a series of reference image files by encoding a digitized background image by a still image compression method for each frame. Then, the reference image file is decoded and displayed on the display screen in units of frames, and a series of edited images are generated by synthesizing multimedia elements such as text, graphics, and voice, and finally, the generated edited image is encoded by moving picture compression. To generate a moving picture file.

Here, the moving picture compression method uses the MPEG4 method for synthesizing multimedia editing elements such as text, graphics, and voice into an edited moving picture file.

The compression editing method according to claim 2 is characterized in that a series of moving picture information photographed by analog is quantized in units of frames and separated into a luminance signal and a color difference signal to generate a digitalized background image.

The compressed and edited method according to claim 3 is characterized in that a series of reference image files are compressed in a JPEG method, and a series of edited moving image files are compressed and stored in an MPEG method.

The compression and editing method according to claim 4 is characterized in that a digital series of background images is encoded as a reference image file in the JPEG method and then compressed in the MPEG method and stored as an edited moving image file without being edited.

Since the moving picture compression method does not require an edited moving picture file, the moving picture compression method uses the MPEG2 method that can be compressed at high image quality.

The moving picture editing apparatus according to claim 5 has a function of quantizing a series of analog color moving pictures, converting them into digital color moving pictures, and compressing and storing them as still pictures in units of frames after setting at least the number of pixels and the image compression ratio of the frame picture. Capturing and continuously displaying the still images compressed and preserved by this video capture on a frame-by-frame basis, and synthesizing multimedia editing elements such as text, graphics, and audio into image display time during playback; and a series of edited still images And an image processing apparatus having a function of encoding a video by a predetermined video compression method and storing the video into a series of edited video files.

A moving picture editing apparatus according to claim 6 is further provided with a device for storing a series of edited moving picture files in a removable storage medium.

The moving picture storage / reproducing apparatus according to claim 7 includes image information storing means for storing a plurality of series of edited moving picture files generated by the method according to any one of claims 1 to 4, and a plurality of edited moving picture files stored in the image information storing means. Call playback switch for selectively displaying and playing back on the display screen, and saves the top page for dividing the edited image file into a predetermined genre, and selects the genre displayed on this top page as the call playback switch for operation. In this case, a list of the edited moving image files belonging to the genre is displayed, and the combination is combined with an image processing and reproducing apparatus having a function of opening a moving image file selected from the list and reproducing and displaying on the display screen.

The moving picture preservation and playback device according to claim 8 operates the call reproducing switch and again opens an edited moving picture file selected from those displayed in the list, and when the moving picture is displayed and reproduced on the display screen, pointing to the arbitrary position on the display screen on which the moving picture is displayed. When the device is clicked on, the display stops displaying the reproduced moving image at that point of time and displays a still image.

The moving picture storage / reproducing apparatus according to claim 9 displays a still picture as a moving picture when the pointing device is operated again after displaying a moving picture as a still picture by operating a pointing device such as a mouse.

The moving picture preservation and playback device according to claim 10 further includes a function for playing back, displaying, replaying, rewinding, and fast-forwarding a moving picture at a preset screen transfer rate when a pointing device such as a mouse is operated by an operation method other than those described in Claims 7 and 8. Characterized in that provided.

The moving picture saving and reproducing apparatus according to claim 11 is further provided with reproducing display mode setting means capable of variably setting a screen transmission speed.

The moving picture storage and playback device according to claim 12 is characterized by being portable.

Hereinafter, one preferred embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a flowchart for explaining the compression editing method of the present invention.

First, analog moving image information output from a video deck is quantized in units of frames, and is separated into a luminance signal and a color difference signal and converted into a digitalized background image (100). The digitalized background image is encoded for each frame using a still image compression method, for example, a JPEG method, to generate a series of reference image files (101).

Then, the reference image file is decoded and displayed on the display screen frame by frame (102), and a series of edited images are generated by synthesizing multimedia elements such as text, graphics, and voice (103), and the resulting edited image is compressed Method (here, MPEG4 method) is encoded to generate a series of edited moving image files (104).

Fig. 2 shows an example of main components of a moving picture editing apparatus which can implement the method of the present invention described above. Furthermore, the moving picture editing apparatus is composed of a personal computer (PC) having a video capture function and an image processing function.

This moving image editing apparatus 1 includes a video capture 10 and an image processing apparatus 13. The video capture 10 includes an A / D conversion circuit 11 and a JPEG format compression means (e.g. a JPEG conversion chip) 12, and quantizes analog moving image information from the video deck 2 as an output source. It converts into a digitalized background image and compresses it into a still image (reference file) on a frame basis.

Furthermore, the image processing apparatus 13 stores a moving image file (JPEG file) storing means 14, a video capturing software 15, a moving image editing / MPEG compression software 16, and an edited moving image file (MPEG file). Means 17 for continuously displaying the still images compressed and preserved in the video capture 10 in units of frames, and converting the multimedia editing elements such as text, graphics, and audio into image display time at the time of reproduction; And a function of encoding the edited series of still images by a predetermined moving picture compression method and storing them into a series of edited moving picture files.

Further, the image processing apparatus 13 is provided so as to be connected to the edited moving image file recording means 18 and the operation means 19 constituted by a pointing device such as a mouse, and the edited moving image file recording means 18 is an edited moving image file saving means. The edited moving picture file (17) is stored in a removable storage medium such as a CD-R (C), an MO disc, or a DVD.

In addition, in Fig. 2, 20 is a video reproducing means for reproducing a set video tape and reading out a video signal (analog moving picture information) superimposed on a voice signal, and 21 is a moving picture editing apparatus for reproducing a video signal superimposed on an audio signal. Signal output means (3) for outputting to (1) shows a display for displaying various information such as an edited moving picture file generated from the moving picture editing apparatus 1, respectively.

The video capture software 15 displays the pixel number and compression rate setting screen shown in FIG. 3 on the display 3 to prompt the user for its setting operation. The number of pixels defines the precision of the display screen at the time of image reproduction, and is set in the pixel number setting column 30. For example, to correspond to full screen display in a personal computer, the number of pixels of the frame of the personal computer 1 is set. The compression rate is set in the compression rate setting field 31.

The frame rate setting field 33 is provided for setting the number of frames of about 1 second, and the time limit setting field 34 is provided for setting a time limit for handling (capturing) analog moving image information as a still image. When the information is set and the OK button 32 is operated, the above-described function is executed based on the set information.

The moving picture editing / MPEG system compression software 16 displays the edited and compressed image shown in FIG. 4 on the display 3 and prompts the user for its operation. The still picture display field 35 displays a still picture compressed and stored in the video capture 10. The above-described multimedia editing element may be synthesized by using a character (character) insertion field 36, an image clip insertion field 37, and a voice insertion field 39. In addition, an arbitrary character is inserted into the character insertion field 36, an arbitrary image clip is inserted into the image clip insertion field, and an arbitrary voice is inserted into the voice insertion field 39. These pieces of information are inserted into the image display time T. For example, in the case of synthesizing the characters of (Hello, Hello) in the image display time between 1 second and 7 seconds, specify 1 second to 7 seconds by operating the characters K and K, and insert (Hello, Hello) character. 4, 38 shows an audio display field, and an audio signal output from the video deck 2 is displayed. The audio signal is separated from the video signal by the A / D conversion circuit 11.

When these multimedia editing elements are inserted into this screen, and predetermined predetermined operation is performed, the inserted multimedia elements are synthesized into still images, encoded in the MPEG4 method, and stored as an edited moving image file (AVI format file).

The edited moving image file saving means 17 displays its contents on the display 3 shown in FIG. Here, the edited moving image file 17A is displayed with its file name and icon, respectively. In addition, these file names can be arbitrarily set at the time of saving.

Next, the moving picture saving and reproducing apparatus of the present invention will be described. Fig. 6 is a diagram showing an example of main components of the moving picture storage / reproducing apparatus of the present invention.

The moving picture storage / reproducing apparatus 4 has a size portable to the user, the image processing and reproducing apparatus 40, and image information storing means 42 which stores a plurality of edited moving image files generated by the above-described method; And display means 43 and operation means 44 constituted by a pointing device such as a mouse.

The image processing and playback apparatus 40 has a top page 41 which displays the called edited moving image files in predetermined genres, and displays them on the display means 43 as shown in FIG. do. If the page playback switch 41A is operated to selectively call up a plurality of edited moving picture files stored in the image information storage means 42 and display them on the display means 43, the image processing playback apparatus ( 40), a list of edited moving image files belonging to the genre is displayed as shown in FIG.

A plurality of edited video files belonging to the corresponding genre are displayed in the list, or the edited video files selected from the list are decoded and displayed as shown in FIG.

When the moving image displayed and reproduced in this way is operated by the operation means 44 at an arbitrary position, for example, by clicking on the pointing device, the display of the moving image stopped at that point in time can display a still image, and then pointing again. By clicking on the device, the still image can be displayed again as a moving picture.

Also, if operations other than the above-described clicks are performed, for example, double click and triple click, the moving picture can be displayed and played back at a preset screen transfer rate, or can be played back, rewound and fast forwarded. In particular, the playback display mode setting screen 43A shown in FIG. 10 is displayed when a predetermined operation is provided by the playback display mode setting means for setting the screen transmission speed. The playback display mode setting screen 43A sets the screen transmission speed by moving from side to side in the state of clicking the screen transmission speed setting button 43B, or when the OK button 43C is operated, the setting becomes effective. Transmission can be at that screen transfer rate.

As can be understood from the above description, in the compression editing method according to claim 1-4 of the present invention, if the background image that is the basis of a moving image is preprocessed and encoded by the still image compression method on a frame-by-frame basis, the background image can be encoded at a high compression ratio. have.

In the editing processing of the background image, once the background image compressed by the still image compression method is decoded and reproduced, and a part of the image is deleted in units of frames, and the synthesis processing of the multimedia editing elements is performed, deterioration of image quality is reduced when the image is reproduced.

The moving picture editing apparatus according to claim 5 has a function of quantizing a series of analog color moving images, converting them into digital color moving images, and compressing and storing them as still images in units of frames after setting at least the number of pixels and the image compression ratio of the frame image. A video capture function and a function of continuously displaying the still images compressed and preserved by the video capture on a frame basis, and synthesizing multimedia editing elements such as text, graphics, and audio into image display time at the time of playback, and a series of edited still images Can be implemented by the method according to claims 1-4 provided with an image processing apparatus having a function of encoding a video by a predetermined moving picture compression method and storing it as a series of edited moving picture files.

The moving picture editing apparatus according to claim 6 further includes a device for storing a series of edited moving picture files on a removable storage medium, which can be reproduced and displayed on a personal computer equipped with a moving picture decoding function.

In the moving picture storage / playback apparatus according to claim 7, when the call playback switch is operated from the top page, a list of edited video files of the genre corresponding to the switch can be displayed, and files to be reproduced and displayed can be selected from the list, and belong to the desired genre. The desired edited moving image file can be easily reproduced and displayed, which is very beneficial for presentation and the like.

When the pointing device is clicked on an arbitrary position on the display screen on which a moving picture is displayed, the moving picture saving and reproducing apparatus according to claim 8 stops the display of the moving picture reproduced at that point of time, displays a still image, and operates a pause switch. In comparison, the operation is very easy. This is very useful for learning while watching golf swings, baseball betting, sign language, and fast moving movies.

The moving picture preservation and playback device according to claim 9 displays a moving picture as a still picture by operating a pointing device such as a mouse, and then operates the pointing device again, so that the still picture can be displayed again as a moving picture. The video can be displayed on the screen in time.

The moving picture preservation and playback device according to claim 10 is very convenient because if a pointing device such as a mouse is performed by an operation method other than those described in claim 7, 8, the moving picture can be played back and displayed at a preset screen transfer rate, or can be played back, rewinded, and fast-forwarded. Do.

The moving picture saving and reproducing apparatus according to claim 11 further includes a reproducing display mode setting means in which the screen transmission speed can be set to be variable, so that the screen transmission speed of the moving picture can be arbitrarily set.

The moving picture storage and reproducing apparatus according to claim 12 has a portable size and is extremely easy to carry and very useful for presentations.

Claims (12)

The digitalized background image is encoded for each frame by still image compression to generate a series of reference image files. Subsequently, a series of edited images are generated by combining multimedia elements such as text, graphics, and voice while decoding the reference image file and displaying the display image frame by frame. A compressed editing method of a moving picture, characterized in that a series of edited moving picture files are generated by encoding the generated edited picture by a moving picture compression method. The method of claim 1, And the digitized background image is generated by quantizing a series of moving image information captured by an analog frame by frame and separating the luminance signal and the chrominance signal. The method according to any one of claims 1 and 2, A method of compressing and editing a moving picture, characterized in that a series of reference picture files are compressed in a JPEG method and a series of edited moving picture files are compressed and stored in an MPEG method. The method of claim 1, A method of compressing and editing a moving image, characterized by encoding a series of digitized background images in a JPEG method as a reference image file, and then compressing the image in the MPEG method itself without editing the image. A video capture having a function of quantizing a series of analog color moving images, converting them to digital color moving images, and compressing and storing them as still images on a frame-by-frame basis after setting at least the number of pixels and the image compression ratio of the frame image. A function of continuously displaying the compressed and stored still images on a frame basis and converting multimedia editing elements such as text, graphics, and audio into image display time at the time of playback, and synthesizing the series of edited still images into a predetermined moving image compression method. And an image processing device having a function of encoding and storing the same as a series of edited moving image files. The method of claim 5, And a device for storing the series of edited moving picture files in a removable storage medium. Image information storing means for storing a plurality of series of edited moving image files generated by the method according to any one of claims 1 to 4; A page playback switch for selectively recalling and displaying a plurality of edited moving picture files stored in the image information storing means on the display screen; and a top page for dividing the called edited image file into a predetermined genre for display. An image processing playback apparatus having a function of displaying a list of edited video files belonging to the genre, opening the edited video file selected from the list, and playing and displaying them on the display screen when selecting and operating the genre indicated in the call playback switch. And a moving picture preservation and reproducing apparatus characterized by the above configuration. The method of claim 7, wherein When the call playback switch is operated and the edited moving picture file selected from the list is opened again and the moving picture is displayed and played on the display screen, when the pointing device is clicked on an arbitrary position on the display screen where the moving picture is displayed, it is played at that time. And a function for stopping the display of a moving image and displaying a still image. The method according to any one of claims 7 and 8, And displaying the moving image as a still image after operating a pointing device such as a mouse, and displaying the still picture as a moving picture. The method according to any one of claims 7 to 9, When a pointing device such as a mouse is operated by an operation method other than those described in Claim 7, 8, the moving picture preservation and playback device is provided with a function to play back, display, rewind, and fast forward the moving picture at a predetermined screen transfer rate. . The method of claim 10, And a reproducing display mode setting means capable of variably setting the screen transmission speed. The method according to any one of claims 7 to 10, A moving picture preservation and playback device, characterized by having a portable size.