JPH087535A - Method and device for editing video - Google Patents

Abstract

PURPOSE:To attain the cost reduction and the time saving in a video editing by performing the video editing of high quality after editing the video while converting the video into the video of a low quality. CONSTITUTION:All materials are taken in a recording medium 9 capable of random accesses. An editing work and a pre-viewing work are simultaneously performed while displaying recorded contents of the medium 9 on the display of a CPU 5. Since the number of pixels of this case is one fourth of that of materials, the power of the CPU 5 required for a per-viewing processing is one fourth of a conventional power. A management is performed by assigning a serial number to each material for the management. Data taken in with the number of pixels with which the degradation of a picture is not generated practically become the data of 6 Mb per a second. Videos are recorded in a consecutive medium by editing data. In short, when there is the capacity of 43.2Gb, the video of an hour can be made. Thus, the video editing can be reduced in terms of time and cost because the whole of the editing can be performed with the recording medium capable of the random accesses and having a recording capacity being one tenth of the conventional capacity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video editing method and apparatus for editing recorded contents.

[0002].

2. Description of the Related Art Conventionally, there has been a video selection device which shortens the time for locating and rewinding a tape by changing from a recording medium which is a sequential access such as a tape to a recording medium which can be randomly accessed.

However, this apparatus becomes a very large-scale apparatus when the recording time is lengthened while maintaining the image quality, and the cost thereof is enormous even today. For example, when such a device is required to have a considerably high image quality for broadcasting and the like, the image quality is maintained and a large amount of recording is performed, so that the cost becomes too high or the device becomes too large. Due to these drawbacks, this device is not practical.

As a practical editing method, there is an off-line editing method in which a tape is temporarily recorded at a shooting site or a data gathering site, and then re-loaded into a randomly accessible recording medium or recording device to find only an editing point.

In the off-line editing, when the amount of material is large, there is a drawback that the time spent for the work of taking in is not so ridiculous and it becomes a difficult work. Moreover, since the number of tapes may be several tens to sometimes more than 100, there is a drawback in that it is a difficult task to manage what each tape contains.

Despite these drawbacks, a necessary piece is found, the head is searched for, a list in which only the editing points are recorded is made, and these are edited by remote control with three conventional VTRs and a switcher device. As such, offline editing is the only means that has the advantage of reducing the time to cue the tape.

Further, in the off-line editing, images are taken into a randomly accessible recording medium or recording device only to find an editing point, the order is specified, and finally the VTR is operated in the same manner as in normal video editing. The image quality of the finished product is determined only by the image quality of the VTR.
In other words, according to this method, no matter how bad the image quality of the video recorded on the randomly accessible recording medium is, it does not affect the finished image quality. The disadvantage of this method is that, for example, in the case of editing for a special effect that requires overlapping several times, it is very inefficient because the copying operation and the tape change are repeated several times, and the image quality deteriorates in the finish. Is. Further, there is also a drawback that the control code must be set so that the special effect is possessed by the switcher device and that possessed by the offline editor. If this setting is not made, even if various effects can be used with the offline editing machine, those effects may not be realized in the actual finish. Moreover, in order to perform the actual editing work in offline editing, it is necessary to make sure that the appropriate tape is mounted. Although this task is simple, it has the drawback that it becomes a difficult task when dealing with a very large number of tapes.

As another editing method, there has been conventionally considered a method in which all images are loaded into a randomly accessible recording medium at a compression ratio or the number of pixels that does not cause deterioration in image quality for editing.

This method has a drawback in that a medium for recording needs to have a very large capacity and the price thereof becomes very expensive.

Further, in this method, since processing is performed by a device incorporating various special effects, there is no mismatch in the processing, and even when a number of screens are combined, the processing can be performed by loading in the memory. It has the advantage of not only degrading the image quality but also making it possible to perform highly efficient editing when obtaining multiple overlapping screens, but it requires several times more processing power than the above-mentioned offline editing processing system. However, in practice, an excessive waiting time occurs in the work for confirming the screen, which causes the following problems. This excessive waiting time causes the efficiency of editing work to be significantly reduced. Moreover,
In order to have processing power of several times, several times of hardware is required. In other words, several times the cost is required.

Next, another conventional video editing apparatus will be described with reference to FIG. This apparatus includes a video signal source 300, a digitizing means 301, and a signal processing means 30.
2, recording means 303, editing means 304, joining means 30
5. The video reproduction means 306 is provided. Video signal source 3
Reference numeral 00 denotes a camera, a VTR or the like, which transmits a video signal to the digitizing means 301. Digitizing means 30
1 transmits to the signal processing means 302 which A / D-converts a video signal and changes it into moving image data. Signal processing means 302
Compresses, enlarges, or reduces the moving image data, and records the recording means 303.
Records the data on a recording medium. Editing means 304
Edits the contents of the recording media, and the joining unit 305 creates the data of the finished video by joining the contents of the recording media, performing a special effect, and superimposing the contents according to the edited contents. The video reproduction means 306 A / D converts the data and reproduces the finished video.

Next, a conventional digital camera body type video will be described with reference to FIG.

This video has a camera 307, an A / D conversion means 308, and a tape drive device 309.
The camera 307 is a CCD camera or the like. Camera 30
7 video signals are A / D converted by A / D conversion means 308.
The data is converted and recorded on the tape by the tape drive device 309. The recorded contents of this tape are edited by the above-mentioned video editing apparatus.

Next, another conventional video editing method will be described.

The video editing apparatus used in this method will be described with reference to FIG. This apparatus includes a first reproduction side VTR 310, a second reproduction side VTR 311, a switcher 312, and a recording side VTR 313.

In this editing method, it is often the case that the material recorded on another tape must be inserted or mixed between the material and the material, even if it is a simple editing. sell. This case is schematically shown in FIG. In the case of such editing, it is necessary to perform cueing at least 14 times and mounting / replacement work 11 times.
The procedure that requires the least number will be described. First, a raw tape is attached to the recording side VTR 313, materials A and G are attached to the first and second reproduction VTRs 310 and 311, and the start point of P1 and the start point of P7 are found. . Next, while playing back both, the screen is changed by the switcher 312 and recorded on the recording side VTR 313 until the end point of P7. Next, the materials E and D are set to the VTR 31 on the first and second playback sides.
The start point of P6 and the start point of P5 are set to 0, 311 and the VTR 313 on the recording side is reproduced to find the end point of P7 and wait for recording. When the starting point of P5 on the way is reached while playing back the material D, the screen is changed by operating the switcher 312 while playing back the material D. Recording side VTR313 at the end point of P5
To stop. The material B is set in the first playback VTR 310. Next, find the start point of P4 and record side VTR31
Play 3 to find the end point of P5 and wait. When the first playback side VTR 310 and the recording side VTR 313 are started at the same time and the end point of P4 is reached, the recording side VTR
Stop 313. The material G is set in the first playback VTR 310. Next, the start point of P8 is cued and the recording side VT
Play R313 to find the end point of P4 and wait. The first reproduction-side VTR 310 and the recording-side VTR 313 are simultaneously started, and when the end point of P8 is reached, the recording-side VTR 313 is stopped. The material A is set in the first playback VTR 310. Next, the start point of 2 is cued to reproduce the recording side VTR 313, and the end point of P8 is cued to stand by. First playback side VTR 310 and recording side VTR 313
The recording side VTR 313 is stopped when the end point of P2 is reached. By the operation up to this point, the intermediate material I was made on the recording side. FIG. 27 schematically shows the intermediate material I.

After that, the intermediate material I is taken out from the recording side VTR 313 and set in the first reproducing side VTR 310. Set the material H to the other VTR 311 on the second playback side and set P
9 cues. The first reproduction-side VTR 310 in which the intermediate material I is set is reproduced, and when the combination start point of P9 is reached, the switcher 312 and the standby VTR are operated to combine the intermediate material I and P9. When the switcher 312 is operated at the end point of P9 and the composition is stopped and recording is completed up to the composition point of the material 3, the material B is replaced with the material H and the beginning of P3 is performed. Play back the VTR 313 on the recording side and set the P of material B
Cue the composite point of 3 and make it stand by. Switcher 31
2 and the first and second VTRs 310 and 311 on the reproducing side are operated to start recording. At the end point of P3, the switcher 312 is operated to stop the synthesis and record to the end point of P2. By the above operation, editing is completed as shown in K of FIG.

To carry out an operation on these, at least 3
A human operator is required. Thus, there is a drawback that one person cannot edit.

Moreover, in the case of editing as shown in FIG. 27, it means that the copying operation is repeated twice until the finish as described above. When the S / N ratio decreases by about 1.5db at one time, 2 × 1.5db = 3.0db at the total of two times
Will also decrease. Digital VTR for editing
Does not cause this drawback. However, in this case as well, there remains the drawback that one person cannot edit the image as described above.

Moreover, which part of which material is to be used and where is used until the actual editing work for producing the desired image is performed.
You have to decide what to use, such as mixing and special effects. For that purpose, first of all, all the materials (If the finish is an image of 1 hour, the material is about 20 minutes cassette 6
It is about 0. This quantity is an average quantity when producing a normal broadcast program or the like. I have to look at the contents of). In other words, I look at all the tapes while imagining what kind of video is contained in which tape and which order to use which video. The time spent on this task is enormous. The time code of the adopted portion, the title of the tape, the management number, etc. are recorded by repeatedly looking around the adopted portion. This work is repeated several times until the fine timing is finally decided.

In order to reduce these operations, a method called off-line editing has been conventionally used. This is a high compression rate for recording media that can be accessed at random (a compression rate that reduces the image quality and makes it possible to check what is displayed on the screen, for example, a compression rate of approximately 1/6 to 1/100) Is a method of recording and recording an image on a recording medium that can be randomly accessed. At that time, as described above, the time code and special effects are recorded and printed as a list. After that, the actual editing work is performed by the VTR as described above. That is, the tapes are sequentially changed and reproduced according to the printed list, and the VTRs on the recording side are connected while the screens are combined using the switcher device. In this editing operation, it is often the case that the tape once mounted on the VTR and used for reproduction must be mounted again later. Normally, two tapes are reproduced to synthesize the screen, so that two tapes for reproduction are always attached to the VTR. It is only necessary to return the tape to its original position after taking it out, but in the state where two tapes are taken out, it is possible for the tape to be mistakenly returned to the place where another tape was originally placed. In other words, it will take time and effort to return to the original even if it is properly checked when returning, or it will take time and effort to search for the tape when taking out. Therefore, as the number of tapes increases, the complexity of the work of mounting them becomes an obstacle, and the time required for editing increases. Moreover, there is a drawback that the number of operators required for editing does not decrease and the editing cannot be done by one person as in the above.

In addition to the above-mentioned offline editing, all materials are finished on a recording medium which can be randomly accessed, and a compression ratio (compression ratio is 1/1 to 1) capable of maintaining a desired image quality.
There is a method called online editing in which images are recorded at 1/6), and screens are combined, joined, special effects, etc. on a randomly accessible recording medium or a randomly accessible recording medium and a memory. In this method, there is no complicated operation. Moreover, even if the number of images to be overlapped increases due to the overlapping of images, it is possible to edit between memories and recording media that can be randomly accessed, so editing can be performed with a very simple work. Therefore, only one operator is required for editing.

However, in order to record an image for a long time on a randomly accessible recording medium while maintaining the image quality, a tremendous amount of equipment is required (as a matter of course, the cost is proportionally required). Become). The size of the device and its cost were problems.

Next, the above-mentioned conventional offline editing apparatus will be further described with reference to FIG. This offline editing apparatus includes a camera 314, a VTR 315, and a randomly accessible recording medium 317.

Audio information and video information are sent from the camera 314 to the VTR 315. Then, the VTR 315 records the audio information and the video information on the audio track 315a and the video track 315b of the tape, respectively, with high quality, and the time code 315 is associated with them.
Record c. In this way, three types of data of audio, video and time code are recorded on the tape.

After that, the video information is reproduced from the tape and compressed to form a compressed video, and the compressed video is recorded on the randomly accessible recording medium 317. In other words, the contents of the tape are copied before the compressed video is created.

Therefore, the data required for editing is a time code, and all audio and video are managed by the time code. That is, the content of the tape is associated with the randomly accessible recording medium by the time code.

[0028]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a video editing method and apparatus capable of solving the above-mentioned drawbacks of the prior art and performing video editing at low cost and in a short time. To do.

[0029]

In order to solve the above-mentioned problems, the first invention of the present application provides a high-quality recording / reproducing means for obtaining the contents of high-quality recording of a plurality of volumes, and those high-quality recording / reproducing means. Information amount adjustment recording / playback means for changing contents to contents of low quality recording,
The temporary editing means for editing the contents of the low quality recording, the tape winding designation means for automatically specifying the volume according to the editing contents of the low quality recording, and the contents of the high quality recording of the designated volume according to the editing contents of the low quality recording A gist is a video editing device characterized by comprising a main editing means for editing.

In the second invention of the present application, an information amount adjusting recording / reproducing means for recording the recording contents of the plurality of first recording media in the second recording medium in a form of reducing the information amount, and the recording of the second recording medium. Temporary editing means for editing the content, tape winding designating means for automatically designating the first recording medium or a third recording medium equivalent thereto according to the editing content of the second recording medium, and the designated first recording medium or The second recording content of the third recording medium
A gist of a video editing apparatus is characterized in that the video editing apparatus is provided with main editing means for editing according to the editing contents of a recording medium.

The third invention of the present application is an information amount adjusting recording / reproducing means for recording the recorded contents of a plurality of first recording media on a second recording medium which can be randomly accessed in a form with a small amount of information, and a second invention. Adopted from temporary editing means for editing the recorded contents of the recording medium to extract the editing points, tape winding designating means for automatically designating the first recording medium according to the editing points, and the first recording medium of the designated volume. A video editing apparatus is characterized in that the video editing apparatus is provided with main editing means for loading minute recording contents into a randomly accessible second recording medium in a form in which image quality deterioration is not practically recognized and editing according to editing points. .

The fourth invention of the present application manages an information amount adjusting recording / reproducing means for adjusting the amount of information and recording the recorded contents of the first recording medium on the second recording medium, and a plurality of first recording media. An automatic exchanging device for designating a first recording medium and setting it in the information amount adjusting recording / reproducing means, and an editing means for editing the recorded content of the second recording medium are provided, and a plurality of first recording media are designated one by one, The recording contents of each first recording medium are recorded in the second recording medium in a reduced amount, the recording contents of the second recording medium are edited, and the first recording medium is automatically designated according to the editing contents. A video editing apparatus is characterized in that the adopted amount of the recorded contents of the first recording medium is recorded in the second recording medium, and the adopted amount is edited according to the edited contents.

The fifth invention of the present application is a recording / reproducing means for recording / reproducing a recording medium and a recording / reproducing means for managing a plurality of recording media and automatically designating a necessary recording medium according to an editing operation. The gist is a video editing device having an automatic exchange device for setting.

Further, according to the sixth invention of the present application, a label is prepared by extracting a plurality of arbitrary frames from a plurality of materials recorded on a recording medium which is randomly accessible, and the contents of each material are expressed by each label. A gist of a video editing apparatus is provided with labeling means.

In the seventh invention of the present application, a plurality of arbitrary pieces are taken out from a plurality of materials recorded on a randomly accessible recording medium and displayed, and each piece is used as a search starting point during editing. The gist is a video editing device characterized by having a search means.

Further, the eighth invention of the present application edits the contents of the low quality recording, the step of changing the contents of the high quality recording into the contents for improving the image quality, the step of changing the contents of the high quality recording into the contents of low quality recording. A video editing method is characterized in that it includes a step, a step of editing content for improving image quality according to the content of editing of low quality recording, and a step of changing the content for improving image quality to high quality according to the content of low quality recording. To do.

[0037]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A video editing apparatus according to an embodiment of the present invention comprises a high quality recording / playback means for obtaining the contents of a plurality of high quality recordings, and an information amount for changing the contents of the high quality recordings into the contents of a low quality recording. Adjusting recording / playback means, temporary editing means for editing the contents of low-quality recording, tape winding designation means for automatically designating the volume according to the editing contents of the low-quality recording, and low-quality contents of the high-quality recording of the designated volume. The video editing apparatus is provided with a main editing means for editing according to the editing content of the recording.

Further, a video editing apparatus according to another embodiment of the present invention comprises an information amount adjusting recording / reproducing means for recording the recording contents of a plurality of first recording media in a second recording medium in a form of reducing the information amount. A temporary editing means for editing the recorded contents of the second recording medium, and a tape winding specifying means for automatically specifying the first recording medium or a third recording medium equivalent thereto according to the edited contents of the second recording medium are designated. First recording medium or third
A video editing apparatus comprising: a main editing unit for editing the recorded content of a recording medium according to the edited content of a second recording medium.

Also, a video editing apparatus according to another embodiment of the present invention records information recorded in a plurality of first recording media on a second recording medium which can be randomly accessed in a form in which the amount of information is reduced, in an information amount adjusting recording. Playback means, provisional editing means for editing the recorded contents of the second recording medium to extract editing points, tape winding designating means for automatically designating the first recording medium according to the editing points, and designated tape winding Import the recorded contents from the first recording medium to the second recording medium that can be randomly accessed in a form in which image quality deterioration is not recognized in practical use,
The video editing apparatus is characterized by comprising a main editing means for editing according to editing points.

The video editing apparatus according to another embodiment of the present invention comprises an information amount adjusting recording / reproducing means for adjusting the information amount to record the recorded contents of the first recording medium on the second recording medium, and a plurality of first and second information recording / reproducing means. A plurality of first recording media are provided, which are provided with an automatic exchange device for managing one recording medium, designating the first recording medium and setting it in the information amount adjusting recording / reproducing means, and an editing means for editing the recorded contents of the second recording medium. Are sequentially designated, the recording contents of each first recording medium are recorded in the second recording medium in a form of reducing the information amount, the recording contents of the second recording medium are edited, and the first recording medium is edited according to the editing contents. Is automatically designated, the adopted amount of the recorded contents of the first recording medium is recorded in the second recording medium, and the adopted amount is edited according to the edited contents.

Further, a video editing apparatus according to another embodiment of the present invention manages a recording / reproducing means for recording / reproducing a recording medium, a plurality of recording media, and automatically designates a necessary recording medium according to an editing operation. Then, the video editing apparatus is provided with an automatic exchange device that is set in the recording / playback means.

Further, a video editing apparatus according to another embodiment of the present invention manages a recording / reproducing means for recording / reproducing a recording medium and a plurality of recording media, and automatically designates a necessary recording medium according to an editing operation. Then, the video editing apparatus is provided with an automatic exchange device that is set in the recording / playback means.

Further, a video editing apparatus according to another embodiment of the present invention takes out a plurality of arbitrary frames from a plurality of materials recorded on a randomly accessible recording medium to create a label, and creates a label by each label. The video editing apparatus is provided with a labeling means for expressing the content of the material.

Further, a video editing apparatus according to another embodiment of the present invention retrieves and displays arbitrary plural frames from plural materials recorded on a randomly accessible recording medium, and searches each frame during editing. The video editing apparatus is provided with a material search means as a starting point.

The video editing method according to another embodiment of the present invention includes the steps of changing the contents of high quality recording into contents for improving image quality, changing the contents of high quality recording into contents of low quality recording, and low quality. A step of editing the content of the recording, a step of editing the content for improving the image quality according to the content of the low quality recording,
It is a video editing method characterized by including the step of changing the content for improving image quality to high quality according to the content of low quality recording.

The contents of the high quality recording are image and sound information, information only of the image, information only of the sound and the like, and the same contents as those of the conventional high quality recording can be adopted. For example, it is possible to employ the material at the broadcasting station, that is, the recorded contents recorded on a recording medium such as a tape at the shooting or interview site. Further, not only those recorded on the recording medium but also video signals transmitted from a camera or the like can be adopted. In addition, it is also possible to adopt the material after editing the material.

The contents of the high quality recording are practically sufficiently high in quality as in the conventional case, and the contents after the editing are also practically high quality. For example, in a broadcasting station, the image quality is sufficiently high for use in broadcasting.

The high quality recording / reproducing means may be a means for transmitting the contents of the high quality recording by photographing or a means for recording / reproducing the contents of the high quality recording on the recording medium. For example, a conventional means for obtaining the contents of high quality recording, such as a video camera, a VTR (video tape recorder), a computer, a digital disk recorder, can be adopted.

The first recording medium is capable of recording the contents of high-quality recording, and may be a conventional recording medium such as a recording medium of sequential access or a recording medium capable of random access. A video tape or the like can be adopted as the recording medium for sequential access. A hard disk, an MO disk (magneto-optical disk), a RAM, or the like can be adopted as the randomly accessible recording medium. Random access is a method of directly reading and writing an arbitrary portion of data recorded on a recording medium.

The third recording medium is similar to the first recording medium. The same content as that of the first recording medium is recorded on the third recording medium equivalent to the first recording medium. As the means for recording in the third recording medium, the above-mentioned high-quality recording means, means for taking in the contents from the first recording medium and recording it, and the like can be adopted.

The contents of a plurality of high-quality recordings can be recorded on any number of first recording media. For example, the contents of each volume of high quality recording can be recorded on each first recording medium.

The content of the low quality recording has a smaller amount of information than the content of the high quality recording, and has a sufficient amount of information for editing, but has a practically insufficient amount of information. For example, the image information of high quality recording is compressed to such an extent that the recording content necessary for editing can be displayed, or the number of pixels is reduced.

The information amount adjusting recording / playback means can change the contents of the high quality recording into the contents of the low quality recording.
A data compression means, a means for reducing the number of pixels, a band division means, a conventional offline editor loading means, etc. can be employed.

The recording contents of a plurality of first recording media can be recorded in an arbitrary number of second recording media. For example, the recording contents of a plurality of first recording media can be recorded in one second recording medium.

The second recording medium may be the same as the first recording medium. However, it is sufficient that the contents of the low quality recording can be recorded. The recording medium is preferably a randomly accessible recording medium.

The temporary editing means is an analog video editing machine, a digital video editing machine, an editing system using a computer, or the like. Besides, a conventional offline editing machine can be adopted. Preferably, the edited contents can be recorded.

It is preferable that the edited content of the temporary editing is not the video actually edited but the editing point.
The editing point is the material to be used for editing, its adopted part,
It shows the timing of composition and the like. For example, as in the past, the starting point of the adopted part, the ending point, the starting point of the composition,
The ending point is converted into the number of pieces and time from the reference point. Not limited to this, E in the conventional offline editing machine
DL (Edit / Direction / List) can also be adopted. It is preferable that the editing content can specify the material used for editing.

As the tape winding designation means, an automatic exchange device or a tape management means which will be described later in detail can be adopted.

In the case of the automatic exchange device, as will be described later, all of the plurality of first recording media (tapes) are automatically specified in order before the temporary editing, and after the temporary editing, specified according to the editing point. The first recording medium of is automatically specified. Each time you specify, the specified first recording medium is automatically VTR
Set it to the recording / playback means such as.

In the case of the tape management means, the first recording medium is designated as in the automatic exchange device, but the designated one is not automatically set and is displayed separately from the others. Then, the editor manually sets according to the display. As the display means, a lamp indicator or a display can be adopted.

The tape winding designation means is not limited to the automatic exchange device and the tape management means, but manages the contents of a plurality of high quality recordings or a plurality of first recording media, and appropriately manages them according to the editing work. Anything can be specified.

The labeling means and the material search means will be described in detail in a third embodiment described later.

The contents for improving the image quality have a smaller amount of information than the contents of the high quality recording, for example, the contents of the high quality recording are divided into bands. The contents of high quality recording can be obtained from the contents of image quality improvement and the contents of low quality recording.

Next, the first to eleventh embodiments of the present invention will be described in order.

[0065] For a video editing method and apparatus will be described according to the first embodiment of the first embodiment the present invention.

This video editing apparatus is an editing apparatus which takes in recorded contents into a randomly accessible recording medium and edits the recording contents, and can eliminate the above-mentioned drawbacks of the prior art. This video editing device will be described. FIG. 1 is a block diagram showing the configuration of the video editing device 1.

The video editing device 1 includes an automatic exchange device 2, V
TR3, digitizer 4, CPU (central processing unit)
5, compression / expansion device 6, frame position information output means 7, first I / O device 8, hard disk drive device 9, RAM /
ROM 10, second I / O device 11, tape management means 1
2, D / A conversion means 13 is provided.

The digitizer 4 is for A / D converting the reproduction signal of the VTR 3, and a conventional video digitizer can be adopted. The compression / expansion device 6 has a variable compression ratio, and since the moving image data is high quality data or low quality data, it can be converted into desired quality data. The frame position information output means 7 includes a time code reader and a sync signal counter, and outputs frame position information based on the time code received from the VTR 3 and the sync signal received from the digitizer 4. First I / O device 8, second
The I / O devices 11 are parallel or serial, respectively. The tape management means 12 outputs a tape number and inputs the presence / absence of a tape. D /
The A conversion means 13 is for D / A converting the moving image data and outputting it for monitoring.

Next, the video editing method will be described.

The video editing method is performed according to steps 20 to 57 in the flow charts shown in FIGS.

This video editing method will be described in detail.

In order to select a necessary material, find an editing point, and compose a story, a recording medium which can be randomly accessed is temporarily provided with a small amount of information, for example, half the number of pixels in the vertical and horizontal directions and a compression ratio of 1/10. All the materials are taken in on the condition. The data acquired in this way is
The data is about 1/40 of the data compared to the case where the original video (material) is directly captured. For example, in the case of capturing an NTSC moving image with 640 horizontal dots × 480 vertical dots in 32,000 colors, the data is about 450 Kb per second. In this case, for example, in order to load the material for 20 hours, 32.4
A Gb recording medium is sufficient. It is possible to load all the materials into a recording medium having a recording capacity smaller than the information amount of the materials.

After that, the recorded contents of the recording medium are edited.
That is, while displaying the recorded contents of the recording medium on the display of the computer, the edit points are set or overlapped, and the connection switching division of the material is set. During editing, a work of confirming at what timing the finished contents are edited or what kind of screen it is, that is, a work of preview is performed together.
The number of pixels of the screen used for this work is 1/4 of the number of pixels of the material
Therefore, the CPU power required for the preview processing system is 1/4 that of the conventional method.

When a series of editing operations are completed, each material that has been used once is given a number, code or name for management. Preferably, for example, a serial number is assigned. Then, for each number, all the editing points of the material of that number are recorded in the recording device. In this case, a means for managing the material so that it is not mistaken for another material is used.
For example, when the material is a tape, a means for putting each tape in a predetermined holder is used so as not to be mistaken for other tapes. When using the method of putting it in the holder like this,
The serial number is attached to the holder, and the tape is managed by the serial number.

After that, the contents in the randomly accessible recording medium are erased, and only the portion used for editing is changed to a recording medium which can be randomly accessed with a compression ratio or the number of pixels which practically does not deteriorate the image quality. take in. This time,
Specify the serial number according to the edited contents and replace the tape appropriately.

As a result, it is very effective. That is, the tape management means number the tapes from the beginning and store each tape in place so that it can be found quickly and easily later. It is possible to instantly select the required tape from such a large pile of tapes. On the other hand, conventionally, since the required tape is selected from the titles attached to the tape, such an effect cannot be exhibited. This effect leads to a significant time reduction regardless of manual or automatic.

The data to be taken in at the compression ratio or the number of pixels which does not cause the deterioration of the image quality in practical use is, for example, a moving image of NTSC system with a compression ratio of 1/640 dots × 480 dots.
When capturing with 3 and 32,000 colors, the data is about 6 Mb / s.

The recording capacity of the recording medium for capturing about 6 Mb of data per second will be described. What is important here is how effective the material is. For example,
If the material is 20 hours and the effective rate of the material is about 5% (the rate actually used by broadcasting stations is about 5%), 5% of 20 hours, that is, one hour is taken in. In this case, the recording capacity of the randomly accessible recording medium required for capturing is 21.6 Gb. By setting the recording capacity according to the effective ratio in this way, necessary materials can be taken in.

Thereafter, the fetched data is edited to connect the images, and the image after the connection is recorded on the recording medium. Therefore, a recording capacity of 21.6 Gb, which is almost the same as the recording capacity required for the above-mentioned capture, is required. That is, under the above conditions, an image of 1 hour can be created if the total recording capacity of 43.2 Gb.

On the other hand, when all the materials are captured at the compression ratio or the number of pixels that practically does not deteriorate the image quality in the conventional way of thinking, the recording of 432 Gb is performed under the same conditions to capture the materials. Requires 5% of capacity and 2% of that to record the finished video.
A recording capacity of 1.6 Gb is required. That is 45 in total
A randomly accessible recording medium having a recording capacity of 3.6 Gb is required.

As described above, according to the present invention, about 1
All editing can be performed using a recording medium with a recording capacity of / 10 that can be randomly accessed. That is, the cost of the randomly accessible recording medium becomes 1/10, and the size of the apparatus can be realized at about 1/10. If the cost of the randomly accessible recording medium accounts for about 50 to 90% of the cost of the entire apparatus, the cost will be significantly reduced. Moreover, the work of changing the tape when taking in the effective amount is about 1/20 of the conventional work in time. Thus, the present invention allows the correct tape to be installed immediately. As a result, the effort spent on the tape changing operation is relatively low.

In addition, the present invention can utilize a CPU, that is, a personal computer, which is used in conventional offline editing. Furthermore, as the software for finding the editing point, the software used in the conventional offline editing can be diverted. That is, significant cost reduction can be achieved even in a portion other than the randomly accessible recording medium.

[0083] For a video editing method and apparatus will be described according to a second embodiment of the second embodiment the present invention.

The second embodiment is an automatic exchange device, VT, which will be described later.
It is equipped with R and tape management means, and the work of taking in several tens of tapes is automated so that no one needs to be attached. Other configurations are the same as those in the first embodiment described above.

The tapes are automatically exchanged at the stage of the material before editing and the work of digitizing them is automated.
Furthermore, the tape replacement work is definitely executed, the necessary portion of the adopted tape is taken out, and the compression ratio is changed to perform digitization. Automate this task. As a result, a person can perform video editing without performing any work other than the work such as virtually selecting an edit point and setting the order of splicing.

Next, the automatic exchange device 2 and the VTR 3 will be described with reference to FIGS. The automatic exchange device 2 and VTR 3 are the same as those in the first embodiment described above.

The automatic exchange device 2 includes a revolver 60, a plurality of holders 61, a plurality of claws 62, a tape pushing-in / out means 63, a revolver rotation driving means 64, a plurality of holder photoelectric sensors 65, a slip ring 66, an arm 67, and Guide rail 68, arm opening / closing motor 6
9, photoelectric sensor 70 for outlet, electromagnetic solenoid 7
Equipped with 2.

The VTR 3 has a tape take-out port 3a and an eject button 71.

The revolver 60 is provided with a plurality of holders 61 for detachably mounting the tape.
Each holder 61 is provided with a claw 62, and the attached tape is held by each claw 62 so as not to fall.
The tape push-in / take-out means 63 pushes the tape from the holder 61 at a predetermined position into the take-out port 3a,
On the contrary, I take it out. Revolver rotation drive means 64
Includes a stepping motor for rotating the revolver 60 and a speed reducer box, and rotates the revolver 60 to position a desired holder at a predetermined position.

The revolver 60 has a rotating shaft 60a,
It can rotate around it.

The holder photoelectric sensor 65 is arranged so as to correspond to the holder 61, and the revolver 60 is provided.
The tape loaded in the holder 61 arranged in the position is detected. The slip ring 66 is a photoelectric sensor 6 for the holder.
5 and the signal from the outlet photoelectric sensor 70 are connected.
The arm 67 is opened and closed to detachably grip the tape and push it into the take-out port 3a. The guide rail 68 is for guiding the tape and pushing it in or out straightly. The arm opening / closing motor 69 is for opening / closing the arm 67. The outlet photoelectric sensor 70 detects the tape in the outlet 3a. The electromagnetic solenoid 72 pushes the eject button 71 to take out the tape from the VTR 3.

Next, referring to FIG. 7, the tape management means 8
0 will be described. The tape management means 80 is a means for mounting an appropriate tape as follows, and is different from that of the first embodiment described above.

The tape management means 80 comprises a plurality of tape holders 81, a plurality of photoelectric sensors 82, and a plurality of lamp indicators 83.

The photoelectric sensor 82 is a tape holder 81.
The tape mounted on the tape holder 81 is detected so as to correspond to. A tape is detachably attached to the tape holder 81 so that it can be immediately taken out at the time of editing. The lamp indicator 83 is arranged so as to correspond to the holder 81. The lamp indicator 83 corresponding to the tape holder 81 on which an appropriate tape is mounted lights up. Thereby, an appropriate tape can be taken out from the tape management means 80 and set in the automatic exchange device 2.

The automatic exchange device 2 and the tape management means 80 are
Each can be used alone. Tape management means 8
If you use 0 alone, you can manually VT the appropriate tape.
Set to R3.

Next, processing by the automatic exchange device 2 will be described. This process is performed from step 90 of the flowchart shown in FIG.
It is performed according to 104.

Regarding the video editing method for performing this processing,
explain in detail.

The material is a plurality of tapes. For example, about 60 tapes. The tape recording time is 20 minutes per tape, and the total time is 20 hours. The tapes are set in the holder of the automatic changer. Detects whether a tape is set for each holder of the automatic exchange device, and sequentially assigns a number to the holder in which the tape is set.

After that, the first numbered tape is pushed into the VTR. On the other hand, after confirming that the tape has been pushed into the VTR, the digitizer is made to wait and a control signal for reproducing the VTR is sent to the VTR. V during playback
Digitize while reading the time code from TR. After the tape has been taken in, a signal to exchange the next tape is sent to the automatic exchange device. Press the eject button with the automatic changer to take out the tape and replace it with the next tape. Even if this tape looks similar, it will be taken in and replaced in the same way. Repeat this operation to capture the contents of each tape. In other words, V tapes in numerical order
Set to TR and capture the contents of each tape.

Although the structure for automatically changing the tape has been described above, a structure for automatically changing the disk instead of the tape may be used.

Third Embodiment In the third embodiment, the work of labeling each tape is automated.

Before describing the third embodiment, the conventional labeling operation will be described. A person manually attaches appropriate comments to the contents of each tape while confirming the contents of the tape one by one and manually performs the labeling. There is.

For this reason, conventionally, there is a drawback that the individuality of the person is likely to appear in the work of labeling and the contents of each tape are difficult to be understood by a third party. Moreover, when a large amount of material is present, the work is very time-consuming.

Moreover, since the method used conventionally displays the first frame and operates the play button and the fast-forward button, it must be said that the features of random access are neglected. Absent.

Since the third embodiment automates the labeling as described below, these conventional drawbacks can be eliminated.

A video editing method and apparatus according to the third embodiment of the present invention will be described with reference to FIGS. 9 and 10.

The third embodiment comprises the CPU of the first embodiment and a digitizer. Further, it is provided with labeling means capable of printing an image on a sheet and using a tack label as the sheet. For other configurations, the above-mentioned first
It is similar to the embodiment.

Next, the labeling means will be described.

In the third embodiment, first of all, only N pieces are extracted from each material by taking advantage of the structure in which all the materials are randomly accessible in a recording medium or recording device.
The scaled up and down size of them is output to a printer and printed on paper so that the paper can be used as a label.

By using this device, it becomes possible to show the contents of the tape to a third party in an easier-to-understand manner as compared with the conventional labeling in which only words are used. You can take out any number of pieces from each material. Some size of image can be printed on the label. Therefore, it is appropriate that the number N of pieces is about 4 to 2.

A method of taking out N pieces will be described.
Simply take out the two pieces at the beginning and end of the material. There is also a piece in between. Or at the beginning,
Take out the pieces at the end of 1/3, 2/3, or 4 pieces in total. If the number of frames is an odd number, a margin will be created during printing, so it is preferable to take out an even number of frames.

The advantage of this method is that by looking at the label, it is possible to detect what is roughly contained without looking at the contents of the tape. Therefore, it is a very effective means when searching for a required scene from a large amount of tapes.

Moreover, it is possible to access from a piece in the middle of the material. In other words, it is possible to move from any of the N pieces taken out to the front or the back of the piece.

Next, the material searching means for specifically carrying out this will be described.

A file obtained by digitizing the material is called a movie file. The track length of the movie file is obtained from the movie file by using, for example, Get / Track / Duration function.

Next, the length of the track is set to M / (N-
1) Obtain the time (time code) separately shown in {M <N, 0 <M}. The N times (time codes) are managed as a time list.

Still images of frames at respective times are obtained based on the time list by using the Get, Movie, and Pict functions.

A view instance for playing each movie is generated on the material window 110 displaying the material. In other words, for each material, its serial number 11
3, the time code 112, and the still image 111 of the frame at each time code are displayed in the material window 110. The serial number 113 is assigned to each tape as described above. A title memo corresponding to each material may be displayed together with the serial number 113. The material window 110 includes a scroll bar 110a. Still images 11 of all materials can be displayed by scroll bar 110a.
1 can be scrolled and displayed.

The user selects a desired still image 114 from the still images 111 displayed in the material window 110 and starts the search by means such as a mouse clip. As a result, the start point is immediately set on the preview window 115, and the search can be started from a position close to the target scene.

The view class Handle / Mouse / D is used to detect which still image is selected by the user.
It uses the own method. Set in this method
The movie 114a is displayed on the preview window 115 by calling the Movie.Time function to set the current selection of the movie to the time value managed in the list.
Determine the readiness to play. If the play button is pressed in this state, playback, frame advance, rewind, reverse playback, etc. can be performed from the time value managed in the list. That is, since the editing point can be found by checking the screen from a position closer to the target scene, the time efficiency of selecting the material for the editing work can be greatly improved.

[0121] With reference to Fourth Embodiment FIG. 11 will be described video editing method and apparatus according to a fourth embodiment of the present invention.

This video editing method is a direct recording type editing method.

The apparatus of this system is composed of the video signal source 120,
Digitizing means 121, high quality processing means 122, first high quality recording means 123, low quality processing means 124, low quality recording means 125, temporary editing means 126, edit point saving means 12
7, a high quality reproducing means 128, a main editing means 129, a main editing data recording means 130, a finished video reproducing means 131, and a second high quality recording means 132. These means
They do not have to be provided separately. For example, one may be selectively used for a plurality of means.

Next, the flow of signal processing by this device will be described.

The original video signal 120 sends the video signal to the digitizing means 121. Video signal source 120
Is a camera, VTR, or the like, and the video signal is the content of high-quality recording. The digitizing means 121 converts the video signal into A / D-converted video data and transmits it to the high quality processing means 122 and the low quality processing means 124, respectively.

The high quality processing means 122 compresses, enlarges, reduces, and divides the moving image data into high quality moving image data so as not to deteriorate the image quality, and transmits it to the first high quality recording means 123. The first high-quality recording means 123 records high-quality moving image data on a third recording medium, for example, a tape.

The low-quality processing means 124 compresses, expands, reduces, and divides the moving image data into low-quality moving image data so as to reduce the data amount, and transmits it to the low-quality recording means 125. The low-quality recording means 125 records low-quality moving image data on a second recording medium, for example, a hard disk. The temporary editing means 126 edits the recorded contents of the second recording medium,
The edit point is transmitted to the edit point storage means 127. The edit point storage means 127 saves the edit points and, based on the save edit points, transmits position information such as the junction points to the high quality playback device 128 and the main edit means 129. The high-quality playback device 128 uses the third position according to the position information.
The recording medium is reproduced, and the adopted moving image data is edited by the main editing means 1.
29 to 29. The main-editing means 129 creates main-editing data by joining the moving-image data for adoption, special effects, and superimposition processing in accordance with the position information to create main-editing data recording means 1
30 or the finished image reproducing means 131, respectively. The main edit data recording means 130 records the main edit data on a fourth recording medium, for example, a D-1VTR tape. The finished video reproduction means 131 uses the D
/ A conversion is performed and video is directly reproduced.

In the apparatus described above, the moving image data is converted into two data of high image quality and low image quality by the high quality processing means 122 and the low quality processing means 124, but it is not limited to this, and the high quality processing means 122 and the low quality processing means. The processing means 124 may divide the video signal into image quality improving data and low image quality data.

For example, the high-quality processing unit 122 band-divides the video signal into data for improving image quality, and the low-quality processing unit 124 band-divides the video signal into data with low image quality. The low image quality data is editable low image quality moving image data. The image quality improving data is the remaining data obtained by dividing the low image quality data from the video signal. In this case, the main editing unit 129 adds the low image quality data to the adopted image quality improvement data in accordance with the position information to create adopted high image quality video data, and joins the adopted video data. , Special effects, superimpose processing to make edit data. Low-quality data is recorded in low-quality recording means 1
Play by 25.

[0130] With reference to the fifth embodiment Figure 12 will be described video editing method and apparatus according to the fifth embodiment of the present invention.

This video editing method is a sequential recording type editing method.

The apparatus of this system uses the first video signal source 14
0, first digitizing means 141, low quality processing means 14
2. Low quality recording means 143, temporary editing means 144, editing point storage means 145, main editing means 146, second video signal source 147, second digitizing means 148, high quality processing means 149, high quality recording means 150, main editing A data recording unit 151 and a finished image reproducing unit 152 are provided. These means do not have to be provided as separate bodies. For example, the one may be selectively used for a plurality of means.

Next, the flow of signal processing by this device will be described.

The first video signal source 140 sends the video signal to the first digitizing means 141. The first video signal source 140 is a camera, a VTR or the like, and the video signal is the content of high quality recording. First digitizing means 14
1 converts the video signal into A / D-converted video data and transmits it to the low quality processing means 142.

The low-quality processing means 142 compresses, enlarges, reduces, and divides the moving image data into low-quality moving image data so as to reduce the amount of data, and transmits it to the low-quality recording means 143. The low-quality recording means 143 records the low-quality moving image data on a second recording medium, for example, a hard disk. The temporary editing means 144 edits the recorded contents of the second recording medium,
The edit point is transmitted to the edit point storage means 145. The edit point storage means 145 saves the edit point, and based on this, transmits position information such as a junction to the second video signal source 147 and the main edit means 146, respectively.

The second video signal source 147 reproduces the same video signal as that described above, and transmits the adopted video signal to the second digitizing means 148 according to the position information. The second digitizing means 148 A / D-converts the video signal to convert it into moving image data, and transmits it to the high quality processing means 149. The high-quality processing unit 149 compresses, enlarges, reduces, and divides the moving image data into high-quality moving image data so as not to deteriorate the image quality, and transmits it to the high-quality recording unit 150. The high-quality recording means 150 records high-quality moving image data on a third recording medium, such as a tape or a hard disk.

The high quality recording means 150 reproduces the third recording medium and transmits the adopted moving image data to the main editing means 146. The main editing means 146 joins the adopted moving image data in accordance with the position information, special effects, and superimposes them to create main editing data, and transmits the main editing data to the main editing data recording means 151 or the finished video reproducing means 152, respectively. The main edit data recording unit 151 records the main edit data on a fourth recording medium, for example, a tape of D-1VTR, and then transmits it to the finished video reproducing unit 152. Editing video playback means 1
Reference numeral 52 D / A converts the main editing data to directly reproduce the finished video.

In the apparatus described above, the high quality processing means 149 and the low quality processing means 142 convert the moving image data into two data of high image quality and low image quality. However, the present invention is not limited to this. The processing means 142 may divide the video signal into image quality improving data and low image quality data.

For example, as in the case of the above-described fourth embodiment, the video signal is band-divided and changed into image quality improving data and low image quality data. Then, low-quality image data is added to the adopted image quality improvement data to create adopted high-quality video data, and the adopted video data is joined, special effects,
Overlay processing is performed to create edited data.

As described above, in the case of the sequential recording method, the first and second video signal sources 140 and 14 such as VTRs are used.
Play 7 times a total of 2 times. The first time, playback is performed at a speed of K times. Preferably, K is a real number that satisfies the conditional expression (0.1 ≦ K ≦ 10). More preferably, K is 1 or more. Explaining the reason, the low quality processing means 14
Since the rate of compressing data by 2 is relatively high, 1 ≦
This is because setting it to K helps shorten the time required to start editing. In the second time, only the necessary portion is reproduced at J times speed according to the position information. When the data transfer rate of the recording medium is slow, if J ≦ 1, all frames can be recorded without data loss. If it is desired to shorten the time, it is possible to reproduce the data from the recording medium at a high speed with 1 ≦ J.

[0141] For a video editing method and apparatus will be described according to a sixth embodiment of the sixth embodiment the present invention.

In the sixth embodiment, the contents of high-quality recording are analog data and the contents of low-quality recording are digital data, and both are associated with each other. Other configurations are the same as those in the first embodiment described above.

Next, a method for associating analog data with digital data will be described with reference to FIG.

A generally used means such as LTC time code, SMPTE, etc., using the recording start signal as a time code index on the audio or control track of the high quality recording data stream 160 or immediately before and after vertical blanking. Mark by. Then, the time code indexes 160a to 160e are added as marks at the time of high quality recording for every N frames.

At the time of digitizing for editing (low image quality) (that is, when changing analog data to low-quality digital data), a recording start signal is detected, and the frame number immediately after is detected as the first frame and the frame number is set one by one. assign. When digitizing with high image quality (when importing the adopted data from the contents of high quality recording), first fast forward the tape to the time code index near the editing point in front of the target piece,
After rewinding, the vertical sync signal is monitored until the target frame is reached (that is, the number of frames is counted), the digitizer is made to wait, and then the required number of frames is digitized.

In the illustrated example, the time code indexes 160a to 160e are assigned to every 30 frames and every one second during high quality recording. Then, the adoptions 162 and 163 (adoption 1 and adoption 2) of the low-quality recording data string 161
Record the beginning and ending positions of the. The initial position indicates the number of pieces from the nearest time code index in front of the first piece of the adopted piece to the piece immediately before that piece. The ending position indicates the number of pieces from the closest time code index in front of the last piece of the adopted portion to that piece.

Adoption 162, 1 of low-quality data string 161
According to the position of the first piece and the position of the last piece of 63 (recruitment 1 and recruitment 2), the high-quality data adoption portion 164,1
Captures 65 (Adoption 1 and Adoption 2) with high image quality. That is,
The high-quality recording data string 160 is fast-forwarded to the time code index 160a (00: 00: 01: 00), 4 frames are counted from there, and then the 5th frame to the last frame of the adoption 1 are fetched. Index 160c
Fast forward to (00: 00: 03: 00), then 1
After counting 5 pieces, take in from the 16th piece to the last piece of adoption 2.

[0148] For a video editing method and apparatus will be described according to a seventh embodiment of the seventh embodiment the present invention.

This video editing method is a band division method, and the apparatus is equipped with a digital camera integrated video. Other configurations are the same as those in the first embodiment described above.

Next, with reference to FIG. 14, a digital camera-integrated video based on the band division method will be described.

This camera-integrated video is used by the camera 17
0, A / D conversion means 171, first band division means 172,
The second band dividing unit 173, the tape drive 174, and the magneto-optical disk drive 175 are provided.

As the camera 170, a conventional camera such as a CCD camera can be adopted. The first band dividing unit 172 includes a band filter, and the second band dividing unit 173 includes a band filter and a scaling unit. First band dividing means 17
The second and second band dividing means 173 band-divides the moving image data into image quality improving data and low image quality data.
The low image quality data is the minimum amount of data required for editing (100 to 1 Mb of data per second). The magneto-optical disk drive 175 records low-quality image data on the magneto-optical disk.

The image quality improving data is the remaining data obtained by dividing the low image quality data from the moving image data. The tape drive 174 records the image quality improving data on the tape.

For the magneto-optical disk drive 175,
Make the magneto-optical disk removable. Thereby,
You can search the editing point by inserting the magneto-optical disk into the editing machine. In this case, there is no need to temporarily take in or copy from the magneto-optical disc to another disc. Therefore, for example, when editing news or the like, the editing can be performed 3 minutes before on-air, which is considerably faster than the conventional method.

By editing the image quality improving data according to the editing points and adding the corresponding low image quality data, a high quality edited image can be obtained. This point is the same as in the fourth embodiment described above.

[0156] For a video editing method and apparatus will be described according to an eighth embodiment of the eighth embodiment the present invention.

In the eighth embodiment, the contents of high-quality recording and the contents of low-quality recording are digital data, and both are associated with each other. Other configurations are the same as those in the first embodiment described above.

Next, a method of associating digital data with digital data will be described with reference to FIG.

Band division, JPEG compression, MPEG compression,
A high-quality data string 176 that has been enlarged or reduced (or may be data for image improvement) has a low compression rate (1/1).
~ 1/6), large magnification (0.8-2), wide band (1
/ 2 to 1/6, or the remaining portion not recorded with low image quality data). In the case of MPEG compression, two key frames are used to maintain high image quality.
Record every 30 frames.

Band division, JPEG compression, MPEG compression,
A low image quality data string 177 (for scene confirmation) that has been scaled up and down has a higher compression ratio (1/2 to 1) than a high image quality object.
/ 100), a small magnification (0.9 to 0.1 times), and a narrow band (1/2 to 1/100). MPEG
In the case of compression, do not have trouble finding the editing point,
Record keyframes every 2-4 frames.

Position data 180a, 180b representing the position of a frame or field is inserted in each K frame (where K is an integer) in the high quality data string 176. In the low image quality data row 177, every P frames (however,
Position data 181a and 181b representing the position of the frame or field are inserted in (P is an integer). K vs P
Is set to 1: 1, 1: L, or L: 1. However, K, P, and L are three conditional expressions (1 ≦ K ≦ 10000).
00, 1 ≦ L ≦ 1,000,000, 1 ≦ P ≦ 100,000
0) is satisfied.

The position of the frame is shown in the order of counting one frame at a time from the position data (closest position data, closest position data to the front, or data position to the rear) at a position that is easy to count. Alternatively, create an index data column separately from the data column after creating the data column,
Retrieve the data position by index. The index is a table of keys (in this case, positions of frames) for searching data by a commonly used method and positions actually recorded on the medium.

At the beginning or at the end of the data (or in the data representing the position of the above-mentioned field),
Data 178 and 179 such as numbers, codes, and names that do not overlap each recording medium are added to clarify the correspondence.

As described above, the method of the eighth embodiment is a method of associating data with each other and recording by two recording methods (method of associating digital data with digital data). This method can be combined with the digital / analog correspondence method of the sixth embodiment.

[0165] For a video editing method and apparatus will be described according to a ninth embodiment of the ninth embodiment the present invention. This video editing method is a sequential recording method.

First, the video editing apparatus will be described with reference to FIG.

This video editing apparatus comprises tape management means 1
90, interface 191, playback recording VTR 19
2. Digitizer (A / D conversion) 193, CPU 19
4, a random access recording medium 195, a signal processing (compression / expansion, band division, enlargement / reduction) means 196, and a D / A conversion means 197.

Next, a video editing method using this apparatus will be described.

First, all necessary materials are reproduced at a speed of K times (0.1 ≦ K ≦ 10) and recorded on a randomly accessible recording medium. If the value of K is set small, the speed of writing data to the recording medium is slow, but all necessary information can be written. If the value of K is set to a large value, a means for recording at high speed so that necessary information can be written on a recording medium that can be accessed at random is required, but the time for editing work can be shortened.

Then, the digitizer is used to A /
D-convert. One or more pairs of digitizers (A / D conversion) can be provided. For example, if two digitizers are used, the time required to capture the material is simply half that of one. At this time, voice can also be A / D converted at the same time. Then, the voice is recorded on a randomly accessible recording medium together with the frame or the data for managing the frame. Since audio has less data than video, it is possible to record the audio data necessary for finishing quality from the beginning. For example, 16-bit stereo is captured by 44.1 KHz sampling. If this is not the case, that is, if capturing is performed by sampling and compression to the extent that what is contained in the image can be confirmed, capturing is performed using 8-bit 11 KHz sampling, for example.

After that, when the material is mounted on the material holder by the operator, serial numbers or codes are assigned to the tapes of the respective materials as in the example shown in FIG. With or without tape by photoelectric sensor (installed)
Can be confirmed. All the materials, that is, the materials from the beginning to the end of the serial number or code, are first scaled up and down with a high compression rate and taken in. In the case of NTSC, the number of pixels is 40 to 525 in the vertical direction and 80 to 800 in the horizontal direction (that is, the image quality is reduced and it is possible to check what is displayed on the screen, and the compression rate is almost 1 /
6 to 1/100, and the reduction ratio is 1/4 to 1/36), and each L frame is recorded on a randomly accessible recording medium. L
The frame can be determined according to the unit for managing the data required to form the screen, such as 1 frame, 1/2 frame, and 2 frames. For example, in the case of the NTSC system, if L = 1/2 frames, the frames can be managed almost every 1/60 seconds.

FIG. 17 shows a state in which all the materials are loaded in the recording medium which can be randomly accessed in this way. The work of editing the data with the high compression ratio is performed in the same manner as the conventional offline editing.

After a series of editing work is completed, the serial number or code of the material used for editing and the adopted portion A of each material
1, A2, B3, B4, D5, E6, G7, G8, H9
The position of the piece counted from the beginning of each material or the numerical data obtained by converting the position of the piece into time is stored in the storage device. FIG.
FIG. 8 schematically shows these numerical data. Alternatively,
You may save it on a randomly accessible recording medium,
If there is no room in the randomly accessible recording medium,
The image recorded by enlarging / reducing at the above-mentioned high compression rate may be erased before recording. However, when recording the data required for finish quality for voice from the beginning, leave only the voice without erasing. In this case, the speed can be increased by lowering the compression rate by the amount of the data used by the audio at the time of the next capturing, that is, when capturing the image of the employed employment, which is advantageous.

Thereafter, the compression rate is reduced to 1/1 to 1/6,
In the case of NTSC, the number of pixels to be captured is 200 to 525 in the vertical direction,
Set the width to 300 to 800, and set the scaling value to 0.8 to 2.
Based on the information stored up to that time, the operator requests a tape through the tape holder interface for the tape that has been adopted, and replaces the tape. Play tape one by one at K speed (0.1 ≤ K ≤ 1
0), and only the adopted amount is recorded on a recording medium that can be randomly accessed. The state of recording in this way is schematically shown in FIG. If a large value of K is set, a high-speed recording means is required so that necessary information can be written on a recording medium which can be accessed at random, but the time for editing work can be shortened. After that, similarly to the conventional online editing, the CPU can perform the screen combining, the joining, the special effect, etc. on the randomly accessible recording medium or the randomly accessible recording medium and the memory. This state is schematically shown in FIG.

Next, the first to fourth effects of the ninth embodiment will be described.

First, the first effect will be described.

Compared with the conventional off-line editing, the labor and time required for tape replacement can be greatly reduced. For example, it can be reduced to almost the same level as the tape exchange work at the time of conventional online editing.

For example, in the case of performing the above-mentioned editing, according to the conventional example, it is necessary to replace the material 11 times in addition to the normal one-time replacement, whereas according to the ninth embodiment, the used material is used. Since it is only taken in, it is only necessary to perform the replacement work 6 times.

Moreover, since the tape exchange interface automatically requests the operator for a tape that has been adopted, the operator does not have to search or check the tape.

Next, the second effect will be described.

Compared with the conventional online editor, the cost of the randomly accessible recording medium is 1/10,
The cost of the entire system is reduced to about 1/8.

In order to find an edit point and compose a story, a random accessible recording medium
For example, when all the materials are captured under the condition that the number of pixels in the vertical and horizontal directions is half and the compression ratio is 1/10, the data to be captured is about 1/40 of the data as compared to the case of capturing the original video as it is. For example, a video of NTSC 640 horizontal
In the case of 32,000 colors of dots x 480 dots vertically, or when only the luminance signal is 640 dots x 480 dots vertically, and the color difference signal is 320 dots x 480 dots vertically, with 16 million colors per dot Is about 4 per second
The video data is 50 Kb. In short, for example, when capturing materials for 20 hours, all the materials can be captured if there is a recording medium of 32.4 Gb.

After that, the contents in the randomly accessible recording medium are erased, and only the portion actually used is taken into the randomly accessible recording medium at a compression ratio or pixel number that does not cause image quality deterioration in practical use. . For example NT
SC video is 640 dots wide x 480 dots long and has a compression ratio of 1/3, 32,000 colors, or 64 luminance signals only.
0 dots x 480 dots vertically, 320 dots color difference signal x
When capturing 480 vertical dots and 16 million colors per dot, the captured data is about 6 Mb / s.

The recording capacity of the recording medium for taking in and editing about 6 Mb of data per second will be described. What is important here is how effective the material is. Therefore, description will be made assuming that the material recorded for program production at a broadcasting station or the like is 20 hours, and the effective rate is about 5%. (Usually, the rate actually used by broadcasting stations is about 5%.) In this case, 5 hours of 20 hours
%, That is, it is necessary to take in for 1 hour. Therefore, the required random accessible recording medium is 21.6G.
It is b, and all the materials adopted for it can be taken in. In addition, the same amount of 21.6 Gb is required to record the images that have been joined. In other words, under the above conditions, an image of 1 hour can be created with a total of 43.2 Gb. On the other hand, if all materials are captured at the compression ratio or the number of pixels that practically does not cause image quality deterioration in the conventional way of thinking, a recording capacity of 432 Gb is required under the same conditions to capture the materials. And 5% of that to record the video that has been spliced
A recording capacity of 1.6 Gb is required. That is 45 in total
A recording medium capable of random access of 3.6 Gb is required.

Thus, according to the present invention, about 1/10
All editing can be performed on a recording medium with a random recording capacity of. That is, the cost of the randomly accessible recording medium is 1/10, and the size of the apparatus is almost 1
Can be realized with / 10. Randomly accessible recording media cost about 50% to 9% of the total device cost.
If it occupies a large percentage, the cost will be significantly reduced. Moreover, the work of changing over the tape when taking in the effective amount is about 1/20 of the work when taking in all the time. Thus, the present invention allows the correct tape to be installed immediately. As a result, the effort spent on the tape changing operation is relatively low.

Next, the third effect will be described.

When the operator performs the editing work, the operator temporarily edits the compressed small data. Moreover,
Only handle what is needed when finished. Therefore, the CPU
Is less burdensome. Therefore, memory is not much needed unlike traditional online editing.

In addition, during editing, a preview operation may be performed in order to confirm at what timing the finished video is edited or what kind of screen it is. CP required for this preview processing system
U power is the number of pixels of the preview is 1 / the number of pixels of the material
In case of 4, the processing time is shortened to 1/4 as compared with the conventional method. Therefore, it is possible to use a CPU, that is, a personal computer, which has been conventionally used for offline editing.

Moreover, as the software for finding the editing point, the software used in the conventional offline editing can be diverted.

Next, the fourth effect will be described.

For example, when editing a one-hour program,
Conventionally, three people each spend about 120 hours. In the same case, according to the present invention, one person can manufacture in 40 hours.

[0192] For a video editing method and apparatus will be described according to the tenth embodiment tenth embodiment.

This video editing method is a sequential recording method, and the tapes are automatically replaced.

First, the video editing apparatus will be described.

This video editing device has an automatic exchange device. Other configurations are the same as the configurations of the ninth embodiment described above. The automatic exchange device is similar to that of the second embodiment described above.

Next, a video editing method using this apparatus will be described.

First, all the materials are attached to the automatic exchange device. At this time, when the operator mounts each material on the holder, the automatic exchange device assigns a serial number or code to each tape. The photoelectric sensor allows you to check the tape loading.

First, all necessary materials are reproduced at a speed of K times (0.1 ≦ K ≦ 10) and recorded on a randomly accessible recording medium. If the value of K is set small, the speed of writing data to the recording medium is slow, but all necessary information can be written. If the value of K is set to a large value, it is necessary to provide a means capable of recording at a high speed so that necessary information can be written on a randomly accessible recording medium.
You can shorten the time to start editing work.

Then, the image is A / D by the digitizer.
Convert. One or more pairs of digitizers (A / D conversion) can be provided. For example, if you use two digitizers, the time required to capture the material is simply half that of one. At this time, voice can also be A / D converted at the same time. Then, the voice is recorded on a randomly accessible recording medium together with the frame or the data for managing the frame. Since audio has less data than video, it is possible to record the audio data necessary for finishing quality from the beginning. For example, it is possible to record with 16-bit stereo 44.1 KHz sampling. If it is not, that is, if it is captured by sampling and compression to the extent that it is possible to confirm what is contained, as in the case of video, for example, recording is performed with 8-bit 11 kHz sampling.

The process of reproducing and recording the material in this way will be described in more detail. The contents of all the materials, that is, the contents of the materials from the beginning to the end of the serial number or code are first compressed at a high compression rate and then enlarged / reduced. In the case of NTSC, the number of pixels is 40 to 525 vertically and 8 horizontally
0-800 (that is, the image quality is reduced and it is possible to check what is displayed on the screen. The compression rate is approximately 1/6 to 1/100, and the reduction rate is 1/4 to 1 / Three
6) and record every L frames. In this way, the tape is automatically exchanged and all the materials are recorded on the randomly accessible recording medium. L is one frame, one half frame, two frames, etc., and can be determined according to the unit for managing the data required to form the screen. For example NTSC
In the case of the method, if L = 1/2 frames, the frames can be managed almost every 1/60 seconds.

FIG. 17 shows a state in which recording of all materials is completed.
Is schematically shown in. After that, it is displayed to the operator that editing can be started. The editing work of the contents recorded in the high compression ratio state is performed in the same manner as the conventional offline editing.

After completion of a series of editing operations, the serial number or code of the material used for editing and the numerical data indicating the adopted portion of the material are stored in the storage device. FIG.
The numerical data of these are schematically shown in FIG. The numerical data indicating the adopted portion is the position of the piece counted from the beginning of the material or the position of the piece converted into time. It is also possible to record on a recording medium that can be randomly accessed, instead of the storage device. In this case, if there is no room in the randomly accessible recording medium, it does not matter even if the image recorded with a high compression ratio and enlargement / reduction setting is erased and then recorded. (However, if you want to record the sound from the beginning in the form of data required for finishing quality, leave only the sound without erasing it. In this case, in the process of importing the used image described below, This is useful because the compression rate can be reduced or the speed can be increased by the amount of data used.) After that, the compression rate is reduced to 1/1 to 1/6. 525, sideways 300 ~
It is set to 800, and the scaling value is set to about 0.8 to 2. Then, based on the information stored up to that point, the operator requests the tapes that have been adopted by the operator through the tape holder interface, replaces the tapes, and plays them one by one at K times speed (0.1≤K ≦ 10), and only the adopted data is recorded on a randomly accessible recording medium. If a large value of K is set, a high-speed recording means is required so that necessary information can be written on a recording medium which can be accessed at random, but the time for editing work can be shortened.

Then, similarly to the conventional online editing, a random accessible recording medium, or a composition of a random accessible recording medium and a screen on a memory,
The CPU can perform joining, special effects, etc. to obtain a finished image.

This finished image is recorded on a recording medium that can be randomly accessed. This state is schematically shown in FIG. If there is a shortage of recording media that can be randomly accessed for all of the finished videos, first create the video of the first Q frame, not all of the finished videos, and then run the VTR once.
, The processed image is erased from the randomly accessible recording medium, and the next Q ′ frame is processed. The present invention eliminates the extra effort associated with tape replacement for that task.

The first to first effects of the tenth embodiment will be described.

First, the first effect will be described.

Compared to the offline editing and the manual exchange type sequential recording system, the time and effort for tape replacement are reduced. For example, if the material is 20 hours at 1 × speed and the finish is 1 hour, in the case of the manual exchange type sequential recording method, the operator performs a very simple tape exchange work for about 21 hours. According to the embodiment, the tape replacement work becomes zero.

Next, the second effect will be described.

Compared with the conventional online editor, the cost of the randomly accessible recording medium becomes 1/10 or more, and the cost of the entire system is reduced to 1/10 or more. For example, in the case of producing a program for 2 hours, a recording medium of about 900 Gb is required according to the conventional online editor, but according to the tenth embodiment, one finished image is recorded.
The capacity of the recording medium can be small because it can be manufactured separately for each time. When the tape is divided in this way, the tape replacement work becomes complicated, but since the tapes are automatically replaced, there is no apparent burden on the operator.

[0210] In order to find an editing point and compose a story, a recording medium that can be randomly accessed is temporarily used.
For example, when all the materials are captured under the condition that the number of pixels in the vertical and horizontal directions is half, and the compression ratio is 1/20, the data is about 1/80 of that in the case of capturing the original video as it is. NTSC video with horizontal 640 dots x vertical 480 dots and 32,000 colors, or only 640 luminance signals
Assuming that dots × vertical 480 dots and color difference signals are captured under the condition of 320 dots × vertical 480 dots, and 16 million colors per dot, the video data is about 225 Kb / s. In short, for example, when capturing a material for 40 hours, it is possible to capture all if there is a recording medium of 32.4 Gb.

After that, the contents in the randomly accessible recording medium are erased, and only the portion actually used is changed to a recording medium which can be randomly accessed by the compression ratio or the number of pixels which practically does not deteriorate the image quality. take in. For example N
The condition that the compression ratio of the TSC moving image is 640 dots in the horizontal direction and 480 dots in the vertical direction to 1/3 and the color is 32,000, or only the luminance signal is 640 dots in the vertical direction and 480 dots in the vertical direction, and the color difference signal is 3
When data is captured under the condition of 20 dots × 480 dots vertically and 16 million colors per dot, the captured data is about 6 Mb per second.

A recording medium required for recording and editing about 6 Mb of data per second will be described. What is important here is how effective the material is. Therefore, description will be made assuming that the rate at which the material recorded for program production at a broadcasting station or the like is effective is about 5%. (Usually, the rate actually used by broadcasting stations is about 5%.) For example,
If the material is 40 hours, then 5% of that, or 2 hours, must be taken. At this time, the required randomly accessible recording medium is 43.2 Gb, and all the materials adopted for this recording medium can be taken in. Then, in order to record the images that have been joined, the same amount of 43.2 Gb is required. That is, under the above conditions, a video of 2 hours can be created with a total of 86.4 Gb.

[0213] When the effective portion is taken in and connected as described above, the effective portion of the material used for the first T hours is not taken all at once in the effective portion of the material for 2 hours. Take in first. And T by CPU
Process time and record on VTR. Next, take in the materials used for T'time. Then, in the same manner, the time T'is processed by the CPU, and the VTR is used for continuous recording. By repeating these steps, it is possible to create a video for a required time. When T = 1 hour, 43.
If there is a 2 Gb recording medium, editing for 2 hours is possible.

On the other hand, if all the materials are fetched at the compression ratio or the number of pixels that practically does not deteriorate the image quality in the conventional way of thinking, in order to fetch the materials, the 2 If it is created in time, a recording medium of 864 Gb is required for capturing, and 5% of it is 43.2 for recording the image after connection.
A Gb recording medium is required. That is, in the conventional technology, a total of 907.2 Gb of randomly accessible recording media is required.

As described above, according to the tenth embodiment, all editing can be performed on the recording medium which is approximately 1/20 of the random access as compared with the prior art. That is, the cost of the randomly accessible recording medium becomes 1/20. The size of the device can be realized by about 1/20. If the cost of the randomly accessible recording medium accounts for about 50 to 90% of the cost of the entire apparatus, the cost will be significantly reduced.

Further, according to the present invention, the work of changing the tapes at the time of editing is automatically performed without any human intervention. This frees the operator from the task of exchanging tapes and edits with as little effort as a traditional online editing system.

Next, the third effect will be described.

When the operator performs a temporary editing operation, he edits a small compressed data. When editing the finish, handle only what you need. Therefore, the CPU
Is less burdensome. Therefore, the memory required for editing is less than that of conventional online editing.

In addition, during editing, a preview operation is often performed in order to confirm at what timing the stitching is performed in the finish or what screen is displayed. The CPU power required for this preview processing system is 1/4 as compared with the conventional system when the number of pixels is 1/4. The processing time is the same as the conventional method. Therefore, it is possible to use a CPU, that is, a personal computer, which is used in conventional offline editing.

Further, as the software for the work of finding the editing point, the software used in the conventional offline editing can be diverted.

Next, the fourth effect will be described.

According to the prior art, when editing a two-hour program, five people spend about 150 hours each. On the other hand, according to the present invention, one person can edit in 19 hours.

[0223] For a video editing method and apparatus will be described according to an eleventh embodiment eleventh embodiment. This video editing method is a direct recording method.

First, the video editing apparatus will be described with reference to FIG.

This video editing apparatus comprises a camera 198 and a magneto-optical disk 199. The other structure is the same as that of the video editing apparatus of the ninth embodiment shown in FIG.

Next, a video editing method using this apparatus will be described.

First, at the time of recording a video, all the materials are recorded in a randomly accessible high quality recording medium in a form of a video that can be confirmed for editing by using a high compression rate or band division. . At the same time, all the materials in the form of images with the required image quality at the time of finishing are recorded on another high quality recording medium (a medium that cannot be randomly accessed,
Record on a normal VTR tape). At this time, the voice may be A / D converted at the same time, and may be recorded on a randomly accessible recording medium together with the frame or the data for managing the frame. Since audio has less data than video, data necessary for finishing quality can be recorded in a high-quality recording medium that can be randomly accessed (for example, 16-bit stereo 44.1 KHz sampling). Alternatively, it is captured by sampling and compression to the extent that it is possible to confirm what is included in the image (for example, 8-bit 11 KHz sampling).

The method of recording all the materials in the form of video that can be confirmed for the above-described editing will be described in detail. In the case of NTSC, length 40 to 525, width 80 to 80
0 pixels (that is, the compression rate is about 1/6 to 1/10, so that you can check the image quality and see what is displayed on the screen)
0, and a reduction ratio of 1/4 to 1/36) is recorded on a high quality recording medium that can be randomly accessed for each L frame. L is 1 piece,
It can be determined according to the unit for managing the data necessary for forming the screen, such as 1/2 frame and 2 frames. For example, in the case of the NTSC system, if L = 1/2 frames, it is almost 1
You can manage pieces every 60 seconds. FIG. 17 shows a state in which all the materials are loaded in the recording medium which can be randomly accessed in this way.

A method of recording a video having the image quality required for the above-mentioned finishing will be described in detail. Compression rate 1
In the case of NTSC, the number of pixels to be captured is set to 200 to 525 in the vertical direction, 300 to 800 in the horizontal direction, and the enlarging / reducing value is set to about 0.8 to 2 in the case of NTSC. To record.

Data having a high compression rate (video that can be confirmed for editing) is used for editing, and the editing work is performed in the same manner as the conventional offline editing. After a series of editing operations are completed, the adopted portion is stored in the storage device as the position of the piece counted from the beginning of the recording medium or as numerical data in which the position of the piece is converted into time.

The image on the recording medium for low quality has a compression ratio of 1 /
In the case of NTSC, the number of pixels to be captured is reduced to 1/6.
The height is set to 200 to 525, the width is set to 300 to 800, and the scaling value is set to about 0.8 to 2 and stored.

After the editing setting is completed, the edited contents are saved. The edited content is not the actual video, but the value of the material number and its start point, end point, composite start point, and end point converted to the number of frames from the reference point or time, and is stored in the memory or auxiliary storage device. Saved. FIG. 18 schematically shows the edited contents.

On the basis of the information of the edited contents stored, the recording medium recording the adopted amount is designated and set in the VTR. This recording medium is reproduced at K times speed (0.1 ≦ K ≦ 10) by the VTR, and only the adopted amount is recorded on the randomly accessible recording medium. FIG. 19 schematically shows a state in which the necessary parts are incorporated in the recording medium which can be accessed randomly.

When the value of K is set to a large value, a high-speed means is required as a means for writing necessary information on a randomly accessible recording medium, but the time required for editing work can be shortened.

Then, in the same manner as the conventional online editing, on the randomly accessible recording medium, or on the randomly accessible recording medium and the memory, based on the information of the edited contents, the composition of the screen, the joining, the special effect are performed. CP
U can do it. FIG. 20 shows a state in which the images are combined in this way. If it is digitally recorded, the operation here will copy the data.

Next, the first to fourth effects of the eleventh embodiment will be described.

Explaining the first effect, unlike the conventional offline and online editing, the trouble and time for once taking in all the materials in some form are eliminated.
In other words, the time to start editing can be shortened.

Explaining the second effect, the cost of the randomly accessible recording medium is about 1/10 and the cost of the entire system is reduced to about 1/3 as compared with the conventional online editing machine.

This point will be described in detail below.

In order to find an editing point and compose a story, if all the materials are loaded into a recording medium that can be randomly accessed once, for example, under the condition that the number of pixels is half in the vertical and horizontal directions and the compression ratio is 1/25, The data is about 1/100 compared to the case where the image is captured as it is. NTSC video is 640 dots horizontally x 480 dots vertically and has 32,000 colors, or luminance signal is 640 dots x vertically 480 dots and color difference signal is 320 dots x vertically 4
If 80 dots and 16 million colors per dot are taken in, the image data will be about 180 Kb per second. In short, for example, when the material is loaded for 20 minutes, all the 216 Mb randomly accessible recording medium can be loaded. This amount is an amount that can be adequately dealt with by a conventionally used magneto-optical disk or the like. That is, the present invention can be applied to a camera-integrated VTR. In other words, the recording medium is detachably attached to the camera of the editing apparatus, and only the portion actually used based on the contents of the randomly accessible recording medium is compressed or the pixel ratio that practically does not deteriorate the image quality. The number of materials is taken into a randomly accessible recording medium of the editing device. For example, an NTSC movie is 640 dots wide x 480 vertical.
Dot compression ratio is 1/3, 32,000 colors, or only luminance signal is 640 dots × 480 dots, color difference signal is 320 dots × 480 dots, and 16 million colors per dot. When capturing, the captured data is about 6 Mb / s. The data of about 6 Mb per second is seemingly large. What is important here is how effective the material is. It is assumed that the effective rate of the material recorded for producing a program at a broadcasting station or the like is about 5% (the rate actually used at the broadcasting station is about 5%).
If the material is 20 minutes, then 5% of that, or 1 minute, must be taken. In this case, the required randomly accessible recording medium is 360 Mb. All the adopted materials can be taken in. Then, the same amount of 360 Mb is required to record the images that have been joined. That is, under the above conditions, if the total is 720 Mb, a video for one minute can be created. Approximately 1/10 compared to conventional
All editing can be done with the random accessible recording medium. I must say that this effect is very large. That is, the cost of a randomly accessible recording medium is 1 /
Therefore, the size of the editing apparatus can be reduced to about 1/10. Considering that the cost of the randomly accessible recording medium accounts for about 50% of the cost of the entire apparatus in the case of the offline editing machine, the cost is significantly reduced. When there are a plurality of tapes, the use of the above-mentioned automatic changer makes it possible to change the tapes without any human intervention. The operator is freed from the work of exchanging tapes and can edit as much as an online editing system.

Explaining the third effect, when the operator performs the editing work, the small data compressed is used. CP to handle only what is needed when finished
The burden on U is small. Therefore, memory is not required much like online editing. When editing, the preview operation is often performed to check the timing or what the screen will look like when finished, but the CPU power required for the preview processing system is when the number of pixels is 1/4. The processing time is 1/4, which is better than that of the conventional method. This makes it possible to use a CPU that has been conventionally used for offline editing, that is, a personal computer. It is also possible to divert the software used for offline editing as software for finding the editing point.

The fourth effect will be explained. In contrast to the conventional case where 5 minutes were required to edit 1 minute of news, according to the 9th embodiment, 1 minute of news image was 1 minute. It can be created in 50 seconds.

Next, referring to FIG. 22, the VTR 192,
The camera 198 and the magneto-optical disk 199 will be described in more detail.

The audio information and the video information are sent from the camera 198 to the VTR 192, and the audio-video information is sent to the magneto-optical disk 199.

The VTR 192 outputs the audio information and the video information in the audio track 1 in association with the time code 192c.
High quality recording on 92a and video track 192b.

The magneto-optical disk 199 compresses video information to create compressed video data 199a. The compressed video data 199a has a low image quality that allows the contents of the video to be confirmed, and has the same image quality as a video displayed in a normal miniature display. The compressed video data 199a is recorded on the magneto-optical disk so as to correspond to the high quality video information recorded on the video track 192b.

In this way, high-quality images and low-quality images are recorded simultaneously and in correspondence with each other. That is, the high-quality image and the low-quality image are associated with each other by means other than the time code 192c.

Also in the case of the band division method described above, two pieces of divided data can be recorded simultaneously and in a corresponding manner.

[0249]

As described above, according to the present invention, editing can be performed in a shorter time and at a lower cost as compared with the conventional technique, and the quality of the finished product after editing can be improved.

Moreover, the contents of high-quality recording of a plurality of volumes or the replacement and replacement work of a plurality of first recording media can be performed accurately.

[Brief description of drawings]

FIG. 1 is a block diagram showing a video editing device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a first half portion of a flowchart for explaining a video editing method according to a first embodiment of the present invention.

FIG. 3 is a diagram showing a second half portion following the flowchart of FIG. 2;

4 is an automatic exchange device and V of the video editing apparatus of FIG.
The side view which shows TR.

5 is a plan view showing the automatic exchange device and VTR of FIG.

6 is a sectional view showing a tape holder of the automatic exchange device of FIG.

FIG. 7 is a diagram showing tape management means of the video editing apparatus of FIG.

FIG. 8 is a flowchart for explaining the flow of processing by the automatic exchange device shown in FIGS.

FIG. 9 is a diagram showing a material editing window of a video editing machine according to a third embodiment of the present invention.

FIG. 10 is a diagram showing a preview window of a video editor according to a third embodiment of the present invention.

FIG. 11 is a diagram showing a signal processing flow of a video editing method according to a fourth embodiment of the present invention.

FIG. 12 is a diagram showing the flow of signal processing according to the fifth embodiment of the present invention.

FIG. 13 is a schematic diagram for explaining a method of associating analog data with digital data according to a sixth embodiment of the present invention.

FIG. 14 is a schematic diagram showing a camera-integrated video of a video editing apparatus according to a seventh embodiment of the present invention.

FIG. 15 is a schematic diagram for explaining a method of associating digital data according to an eighth embodiment of the present invention.

FIG. 16 is a block diagram showing the outline of a video editing device according to a ninth embodiment of the present invention.

FIG. 17 is a schematic diagram showing a state in which a material is loaded.

FIG. 18 is a schematic diagram for explaining the concept of edit points.

FIG. 19 is a schematic diagram showing a state in which adopted data is captured.

FIG. 20 is a schematic diagram showing a state in which adopted data is combined.

FIG. 21 is a block diagram showing the outline of a video editing device according to an eleventh embodiment of the present invention.

22 is a schematic diagram for explaining the concept of a VTR device of the device shown in FIG.

FIG. 23 is a diagram showing a flow of conventional signal processing.

FIG. 24 is a schematic view showing a conventional digital camera integrated video.

FIG. 25 is a block diagram showing an outline of a conventional video editing device.

FIG. 26 is a schematic diagram showing a state in which a material is captured by a conventional video editing method and a finished state after editing.

FIG. 27 is a schematic diagram for explaining a conventional video editing method.

FIG. 28 is a schematic diagram for explaining the concept of a conventional VTR device.

[Explanation of symbols]

1 Video Editing Device 2 Automatic Exchange Device 3 VTR 4 Digitizer 5 CPU (Central Processing Unit) 6 Compression / Expansion Device 7 Frame Position Information Output Means 8 First I / O Device 9 Hard Disk Drive 10 RAM / ROM 11 Second I / O Device 12 tape management means 13 D / A conversion means 20-57 video editing procedure 60 revolver 61 holder 62 claw 63 tape pushing / removing means 64 revolver rotation drive means 65 photoelectric sensor for holder 66 slip ring 67 arm 68 guide rail 69 arm opening / closing Motor 70 Ejection photoelectric sensor 71 Eject button 72 Electromagnetic solenoid 80 Tape management means 81 Tape holder 82 Photoelectric sensor 83 Lamp indicator 90-104 Automatic tape replacement procedure 110 Element Window 110a Scroll bar 111 Frame still image 112 Time code 113 Serial number 115 Preview window 114a Movie 120 Video signal source 121 Digitizing means 122 High quality processing means 123 First high quality recording means 124 Low quality processing means 125 Low quality recording means 126 Temporary editing means 127 edit point storing means 128 high quality reproducing means 129 main editing means 130 edit data recording means 131 edited video reproducing means 132 second high quality recording means 140 first video signal source 141 first digitizing means 142 low quality processing means 143 low quality recording means 144 Temporary Editing Means 145 Editing Point Saving Means 146 Main Editing Means 147 Second Video Signal Source 148 Second Digitizing Means 149 High Quality Processing Means 150 First High Quality Recording Means 151 2 High quality recording means 152 Edited video reproducing means 160 High quality recording data string 160a to 160e Time code index 161 Low quality recording data string 162, 163 Adopted (adopted 1, adopted 2) 164 Adopted high quality recorded data Columns 165, 166 Adopted high quality data (Adopted 1, Adopted 2) 170 Camera 171 A / D conversion means 172 First band dividing means 173 Second band dividing means 174 Tape drive 175 Magneto-optical disk drive 176 High quality data Row 177 Low-quality data row 178, 179 Recording medium data 180a, 180b Position data 181a, 181b Position data 182 183 190 Tape management means 191 Interface 192 Playback recording VTR 193 Digitizer (A / D conversion) 194 CPU 195 Lander Access recording medium 196 signal processing unit 197 D / A converter 198 camera 199 magneto-optical disk

Claims (8)

[Claims] 1. A high quality recording / reproducing means for obtaining the contents of a plurality of high quality recordings, an information amount adjusting recording / reproducing means for changing the contents of the high quality recordings into the contents of the low quality recordings, and the contents of the low quality recordings. A temporary editing means for editing, a tape winding designation means for automatically designating a volume according to the editing content of the low quality recording, and a main editing for editing the high quality recording content of the designated volume according to the editing content of the low quality recording A video editing device comprising means. 2. An information amount adjusting recording / reproducing unit for recording the recording contents of a plurality of first recording media in a second recording medium in a form of reducing the information amount, and a temporary editing unit for editing the recording contents of the second recording medium. And a tape winding designation means for automatically designating the first recording medium or a third recording medium equivalent thereto according to the edited content of the second recording medium, and the recorded content of the designated first recording medium or third recording medium. A video editing apparatus, comprising: a main editing unit for editing according to the editing content of the second recording medium. 3. An information amount adjusting recording / reproducing means for recording the recorded contents of a plurality of first recording media onto a second recording medium which can be randomly accessed in a form with a small amount of information, and the recorded contents of the second recording medium. To temporarily edit the first recording medium according to the editing point, a tape winding designating unit that automatically designates the first recording medium according to the editing point, and a random access to the recorded contents for adoption from the first recording medium of the designated winding. A video editing apparatus comprising a main editing means for importing into a possible second recording medium in a form in which image quality deterioration is not practically recognized and editing according to an editing point. 4. An information amount adjusting recording / reproducing means for adjusting the amount of information to record the recorded contents of the first recording medium on the second recording medium, and managing the plurality of first recording media and designating the first recording medium. An automatic exchanging device for setting the information amount adjusting recording / reproducing means, and an editing means for editing the recorded contents of the second recording medium, and sequentially specifying a plurality of first recording media to reduce the amount of information. The recording content of the first recording medium is recorded in the second recording medium, the recording content of the second recording medium is edited, and the first recording medium is automatically designated according to the editing content. A video editing apparatus, characterized in that the adopted amount of recorded contents is recorded in a second recording medium and the adopted amount is edited according to the edited contents. 5. A recording / reproducing means for recording / reproducing a recording medium, and an automatic exchange device for managing a plurality of recording media and automatically designating a necessary recording medium according to an editing operation and setting it in the recording / reproducing means. A video editing device characterized in that 6. A labeling means for extracting a plurality of arbitrary frames from a plurality of materials recorded on a randomly accessible recording medium to create a label, and expressing the contents of each material by each label. Characteristic video editing device. 7. A material search means for extracting and displaying a plurality of arbitrary frames from a plurality of materials recorded on a randomly accessible recording medium and using each frame as a search starting point during editing. Characteristic video editing device. 8. The step of changing the contents of the high quality recording into the contents for improving the image quality, the step of changing the contents of the high quality recording into the contents of the low quality recording, the step of editing the contents of the low quality recording, and the editing of the low quality recording. A video editing method comprising: a step of editing content for improving image quality according to the content; and a step of changing the content for improving image quality to high quality according to the content of low quality recording.