JPH09163300A - Image editing method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain seamless reproduction where images are consecutive even when each recording time of discrete images is short in the case of reproducing the discrete images in different areas on an optical disk. SOLUTION: The device is provided with a semiconductor memory 9 storing at least part of discrete images while the discrete images read from an optical disk 4 are integrated and outputted externally and the images are transferred to the memory 9. When a discrete image is less than a length of a small edit unit, tentative write/read to/from the semiconductor memory 9 are repeated by a command of a system controller 1 and composite discrete image is transferred to a new storage area of the optical disk 4. When the image is converted into an image with a prescribed length or over, the integrated image is read in the consecutive reproduction to attain seamless reproduction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disc for recording a large number of images, and an image editing method capable of seamlessly reproducing images even when images in a plurality of different areas on the optical disc are continuously reproduced. The present invention relates to an image editing device.

[0002]

2. Description of the Related Art When a discrete image recorded in a plurality of different areas is continuously reproduced on an image recording medium such as an optical disc when editing news, when the first discrete image is reproduced, the next discrete image is reproduced. A search is performed to move to the area where is recorded. The image becomes a still image during execution of this search. Therefore, in order to prevent the image from being interrupted during the search, for example, Japanese Patent Laid-Open No. 4-355.
An image editing apparatus as disclosed in Japanese Patent No. 265 has been proposed. FIG. 5 shows an example of the configuration of this conventional image editing apparatus.

The image editing apparatus shown in FIG. 5 comprises a system controller 1, a disc motor control circuit 2, a disc motor 3, an optical disc 4, an optical pickup 5, a pickup control circuit 6, a modem 7 and a FIFO memory 8. When performing seamless reproduction, this image editing apparatus rotates the optical disk 4 at a speed higher than the normal rotation speed and stores the image in the FIFO memory 8 in advance. During the search, the image stored in the FIFO memory 8 is read to reproduce the image without interruption.

[0004]

However, the optical disk 4
Since the time until the image data is stored in the FIFO memory 8 having a fixed capacity is determined according to the speed of the high-speed rotation of, even if a discrete image having a length less than that time is reproduced, It cannot store the amount of images that must be played. Thus, in the conventional method,
There is a minimum edit unit that enables seamless reproduction according to the rotation speed of the optical disc 4, and there is a problem that seamless reproduction cannot be performed for discrete images that do not satisfy the minimum edit unit.

The present invention has been made in view of the above conventional problems, and in an image recorded on an optical disk, even if the image is a discrete image of any short length,
An object of the present invention is to realize an image editing method and an image editing apparatus that enable seamless reproduction of images.

[0006]

In order to solve this problem, the invention according to claim 1 is to perform seamless reproduction in which discrete images recorded in a plurality of different areas on an optical disk are reproduced as seamless continuous images. And a minimum length of image required for seamless reproduction as a minimum editing unit, and when the optical disc includes a discrete image of less than the minimum editing unit, one discrete image of less than the minimum editing unit is used. When combining other discrete images to be reproduced before or after the discrete image to generate a unified discrete discrete image having a minimum editing unit or more, first, from the first discrete image to be unified and combined, Sequentially storing in the semiconductor memory, and when the semiconductor memory is filled, a new writing area on the optical disk is searched once and the image stored in the semiconductor memory is stored in the optical disc. If the first discrete image that is recorded in a new writing area on the disc and is unified and combined is recorded in the new writing area on the optical disc, the second and subsequent unified recordings are performed. The discrete images are stored in the semiconductor memory and recorded in a new writing area on the optical disc in which the first and subsequent images are recorded, and the discrete images to be unified and combined are also written to the optical disc. The present invention is characterized in that a composite discrete image is recorded by recording in an area, and when another discrete image to be integrated is further present on the optical disc, the remaining discrete image is created as another composite discrete image. .

According to a second aspect of the invention, in order to seamlessly reproduce discrete images recorded in a plurality of different areas on the optical disc as seamless continuous images, the minimum length of the image required for the seamless reproduction is set. Is the minimum editing unit, and the optical disc includes a discrete image of less than the minimum editing unit, one discrete image of less than the minimum editing unit and another discrete image to be reproduced before or after the discrete image are combined to obtain the minimum. An image editing apparatus for generating a unified discrete discrete image which is equal to or more than an edit unit, and which has an area for recording the complex discrete image, and an optical disc on which image data including the discrete image is recorded; Signal recording / reproducing means for recording and reproducing image data by means of a semiconductor, and a semiconductor for temporarily storing at least a part of the discrete image reproduced by the signal recording / reproducing means. A system control unit that controls reproduction and recording of image data with respect to a memory and the signal recording / reproducing means, controls writing and reading with respect to the semiconductor memory, and instructs generation and reading of the composite discrete image. The system control unit writes the discrete images in the semiconductor memory in the order of unifying and combining, and when the semiconductor memory is filled, searches the new write area of the optical disc once. An image stored in the semiconductor memory is recorded in the write area of the optical disc by the signal recording / reproducing means, and all discrete images to be unified and combined are also recorded in the write area of the optical disc to form a composite discrete image. And another discretized image to be integrated is further present on the optical disc, the remaining discretized image is replaced with another composite discretized image. It is characterized in that to create a.

With such a method and configuration, the storage of the reproduced image in the semiconductor memory and the recording from the semiconductor memory to the optical disk are performed by the capacity of the semiconductor memory, and the discrete image less than the minimum editing unit is eliminated. Therefore, the capacity of the semiconductor memory may be small.

According to a third aspect of the present invention, there is provided an image editing method for seamless reproduction in which discrete images recorded in a plurality of different areas on an optical disc are reproduced as seamless continuous images. When the optical disc includes a discrete image of less than the minimum edit unit, the minimum length of the image required for the minimum edit unit is one, and one discrete image of less than the minimum edit unit and another discrete image to be reproduced before or after the discrete image. When combining images with each other to generate a composite discrete image that has been integrated into a minimum edit unit or more, the discrete images to be integrated and combined are sequentially written to the hard disk, and the discrete images to be integrated and combined are written to the hard disk. Is completed, a new writing area on the optical disc is searched,
When the discrete discrete images integrated and combined on the hard disk are collectively recorded in the writing area on the optical disc, and the other discrete images to be unified are further present on the optical disc, the remaining discrete images are recorded. Another composite discrete image is recorded in the recording area of the optical disc.

Further, in order to seamlessly reproduce the discrete images recorded in a plurality of different areas on the optical disc as seamless continuous images, the minimum length of the image required for the seamless reproduction is set forth. Is the minimum editing unit, and the optical disc includes a discrete image of less than the minimum editing unit, one discrete image of less than the minimum editing unit and another discrete image to be reproduced before or after the discrete image are combined to obtain the minimum. An image editing apparatus for generating a unified discrete discrete image which is equal to or more than an edit unit, and which has an area for recording the complex discrete image, and an optical disc on which image data including the discrete image is recorded; Signal recording / reproducing means for recording and reproducing image data by means of recording, a hard disk for storing the discrete images reproduced by the signal recording / reproducing means, Performs playback control of the recording of the image data to the recording and reproduction means, wherein performs control of writing and reading to the hard disk, anda system controller for instructing the generation and reading of the composite discrete image,
The system control unit sequentially writes the discrete images to be unified and combined to the hard disk, and when the writing of the discrete images to be unified and combined is completed on the hard disk, searches for a new writing area on the optical disc, and then the hard disc. The composite discrete image unified above is collectively recorded in a new writing area on the optical disc by the signal recording / reproducing means, and when another discrete image to be unified is further present on the optical disc, the remaining Is recorded in the recording area of the optical disc as another composite discrete image.

With such a method and configuration, when the unified image is recorded at a time, the images for the minimum editing unit can be collectively stored in the hard disk. In this way, the combination of the discrete image that is less than the editing unit and another discrete image that is reproduced before and after that is integrated and recorded in a new area on the optical disc with a length equal to or longer than the minimum editing unit. At the time of continuous reproduction, seamless reproduction can be performed by calling the unified image.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) An image editing method according to a first embodiment of the present invention and an image editing apparatus for realizing this method will be described with reference to the drawings. FIG. 1 is a block diagram showing the arrangement of the image editing apparatus according to the first embodiment. The same parts as those of the conventional example will be described with the same reference numerals.

In FIG. 1, a system controller 1 is a system control unit that controls the entire optical disk drive, and is a circuit that manages each control system in accordance with an instruction from the drive interface and performs a target operation. The disc motor control circuit 2 is a circuit which is controlled by the system controller 1 and controls the disc motor 3 to rotate the optical disc 4.

The optical pickup 5 reproduces a recorded image on the optical disc 4 and records an image on the optical disc 4. The pickup control circuit 6 is a circuit whose operation is controlled by the system controller 1 and which moves the optical pickup 5. A modem (MODEM) 7 is a circuit that modulates and demodulates a signal, modulates image data from the FIFO memory 8 or the semiconductor memory 9 and gives it to the optical pickup 5, and demodulates a reproduced signal from the optical pickup 5 to F.
It is given to the IFO memory 8 or the semiconductor memory 9.

Reading and writing of video signals from the FIFO memory 8 are controlled by the system controller 1. Further, this apparatus inputs / outputs with an external video signal through the FIFO memory 8. The semiconductor memory 9 is a memory for temporarily storing an image according to a command from the system controller 1. Here, the disc motor control circuit 2, the disc motor 3, the optical pickup 5, and the pickup control circuit 6 constitute signal recording / reproducing means for recording and reproducing image data on the optical disc 4.

The operation of the image editing apparatus thus configured will be described. As an example, the capacity of the semiconductor memory 9 is one second of an image, and the minimum editing unit required for seamless playback is 10
Seconds. Now, assume that two independent discrete images A and B recorded on the optical disc 4 are continuously reproduced, and the reproduction times of the discrete images A and B are 5 seconds and 7 seconds, respectively. In this case, since the length of the discrete image A is less than the minimum editing unit of 10 seconds, even if the discrete images A and B are continuously played back as they are using the conventional image editing apparatus, seamless playback cannot be performed and the still image is temporarily stopped. It becomes a picture. Therefore, the discrete image A,
The image of 12 seconds with B connected is newly recorded in another area on the optical disc 4 as a composite discrete image.

The procedure will be described with reference to FIG. First, in the disc read position retrieval 10, the disc reproduction 11 is first performed, and the start address of the discrete image A is retrieved by the optical pickup 5. The image reproduced for 1 second from the start address of the discrete image A is demodulated by the modem 7 and stored in the semiconductor memory 9 (writing 12 to the semiconductor memory). Next, in the disc write position search 13, the start position of a new write area on the optical disc 4 on which a composite discrete image can be recorded is searched. Semiconductor memory 9
Image read from (14 read from semiconductor memory)
Is modulated by the modem 7 and recorded for 1 second from the start position of the new writing area on the optical disc 4 (disc recording 15).

The discrete image A is recorded in a new writing area on the optical disk 4 by repeating this method five times while shifting the read position search address and the write position search address by one second. .

Next, the same operation is repeated 7 times for the discrete image B, and the discrete image A is recorded after the new writing area of the optical disc 4 previously recorded. This allows
In the new writing area of the optical disc 4, the discrete image A,
B is recorded as a single composite discrete image for 12 seconds. Note that if two discrete images are connected and the minimum editing unit is not reached, the same method may be repeated for three or more discrete images.

In this way, when some of the discrete images do not reach the minimum edit unit, another discrete image to be reproduced before and after that is combined to form a composite discrete image of all minimum edit units or more. Convert. If all of the composite discrete images are equal to or larger than the minimum edit unit, seamless image reproduction is possible by the method described in the related art. The order of unifying the discrete images may be the same as the order at the time of reproduction, or may be another order. Alternatively, a method may be used in which a discrete image having a size equal to or larger than the minimum edit unit that is adjacent is combined.

The functions of the present invention can be realized even if the semiconductor memory 9 is replaced by a memory of the FIFO 8. Also, the semiconductor memory 9 may be provided at a position other than that shown in the figure as long as it is on the path until the reproduction signal from the optical disc 4 is output as a video signal.

(Second Embodiment) Next, an image editing method according to a second embodiment of the present invention and an image editing apparatus for realizing this method will be described with reference to the drawings. FIG. 3 is a block diagram showing the arrangement of the image editing apparatus according to the second embodiment. The same parts as those in the first embodiment will be described with the same reference numerals. The image editing apparatus of this embodiment is different from that of the first embodiment in that a hard disk 16 is provided instead of the semiconductor memory 9.

The operation of the image editing apparatus thus constructed will be described with reference to FIG. As in the first embodiment, two independent discrete images A and B on the optical disc 4 are continuously reproduced, and the lengths of the discrete images A and B are 5 seconds and 7 seconds, respectively. First, search disk read position 1
At 0, the optical pickup 5 searches for the start address of the discrete image A. Then perform disk playback 11,
Image data for 5 seconds is reproduced from the start address of the discrete image A. This signal is demodulated by the modem 7 and recorded in the hard disk 16 (writing to the hard disk 1
7).

Next, a new disk read position search 10
At, the start address for the optical disc 4 of the next discrete image B is searched. The signal reproduced for 7 seconds from the start address of the discrete image B is recorded in the continuation of the area of the hard disk 16 in which the discrete image A was previously recorded. As a result, the discrete images A and B are connected to the area on the hard disk 16 12
A composite discrete image in which images for seconds are integrated is recorded.

Next, the disc write position search 13 searches for a new write area on the optical disc 4 where the unified image is to be recorded. Then hard disk 1
Images for 12 seconds read from 6 (read from the hard disk 18) are collectively recorded in a new write area on the optical disk 4 (disk recording 15). In this way, if all the discrete images are converted into those of the minimum editing unit or more, seamless reproduction can be realized in continuous reproduction.

As a capacity of the hard disk 16, at least a minimum editing unit (10 seconds in this example) is sufficient. In the present embodiment, if the hard disk 16 has a capacity of 10 seconds for an image, it is not possible to record an image for 12 seconds as in the above example. In that case, for example, the first 5 seconds of the discrete image B and the discrete time are discrete. The image A may be combined to form an image for 10 seconds, and the remaining 2 seconds of the discrete image B may be combined with the discrete image to be reproduced next.

The method of the first embodiment can be executed even when the capacity of the hard disk is less than the image recording amount for the minimum editing unit. Further, similarly to the case of the first embodiment, the position where the hard disk 16 is provided may be a position other than that shown in FIG. 3 as long as it is on the path through which the reproduction signal passes.

[0028]

As described above, according to the present invention, a discrete image reproduced before or after a discrete image is reproduced in a new area on the optical disc, even if the image has any short length in image editing. Since it is recorded as an image of the minimum editing unit or more by combining with, it is possible to perform completely seamless image playback by reading the composite discrete image combined with the minimum editing unit or more during continuous playback. Become.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an image editing apparatus according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an operation sequence of the image editing apparatus of the first embodiment.

FIG. 3 is a block diagram showing a configuration of an image editing apparatus according to a second embodiment of the present invention.

FIG. 4 is an explanatory diagram showing an operation sequence of the image editing apparatus of the second embodiment.

FIG. 5 is a block diagram showing a configuration example of a conventional image editing apparatus.

[Explanation of symbols]

 1 System Controller 2 Disk Motor Control Circuit 3 Disk Motor 4 Optical Disk 5 Optical Pickup 6 Pickup Control Circuit 7 Modem 8 FIFO Memory 9 Semiconductor Memory 16 Hard Disk

Claims (4)

[Claims] 1. An image editing method for seamless reproduction in which discrete images recorded in a plurality of different areas on an optical disc are reproduced as seamless continuous images, and the minimum length of the image required for seamless reproduction is provided. Is set as the minimum editing unit, and when the optical disc includes a discrete image of less than the minimum editing unit, one discrete image of less than the minimum editing unit and another discrete image to be reproduced before or after the discrete image are combined to obtain the minimum. When generating a composited discrete image that is unified by more than the editing unit, first, the first discrete images that are unified and combined are sequentially stored in the semiconductor memory, and when the semiconductor memory is filled, A new writing area on the optical disc is searched, the image stored in the semiconductor memory is recorded in the new writing area on the optical disc, and the images are integrated and combined. When the recording of the discrete images of the eyes in the new writing area on the optical disk is finished, the second and subsequent discrete images that are unified and combined are stored in the semiconductor memory and the first and subsequent images are recorded. Recorded in a new writing area on the optical disc, and all discrete images that are combined and united are also recorded in the writing area of the optical disc to create a composite discrete image, and another discrete image to be unified. An image editing method, wherein when the image further exists on the optical disc, the remaining discrete image is created as another composite discrete image. 2. In order to seamlessly reproduce discrete images recorded in a plurality of different areas on an optical disc as seamless continuous images, the minimum length of an image required for the seamless reproduction is set as a minimum editing unit, When the optical disc includes a discrete image of less than the minimum editing unit, one discrete image of less than the minimum editing unit and another discrete image to be reproduced before or after the discrete image are combined to form a single unit of at least the minimum editing unit. An image editing apparatus for generating a composite discrete image, the optical disc having a recording area for the composite discrete image, recording image data including the discrete image, and recording and reproducing the image data on the optical disc. Signal recording / reproducing means, a semiconductor memory for temporarily storing at least a part of the discrete image reproduced by the signal recording / reproducing means, A system control unit that controls reproduction and recording of image data to a reproduction unit, controls writing and reading to and from the semiconductor memory, and instructs generation and reading of the composite discrete image; The system control unit writes the discrete images in the semiconductor memory in the order of unifying and combining, and when the semiconductor memory is full, once searches a new writing area of the optical disc and stores it in the semiconductor memory. The recorded image is recorded in the write area of the optical disc by the signal recording / reproducing means, and all discrete images to be unified and combined are also recorded in the write area of the optical disc to create a composite discrete image. When a discrete image to be unified is further present on the optical disc, the remaining discrete image is created as another composite discrete image. Image editing apparatus according to claim Rukoto. 3. An image editing method for seamless reproduction in which discrete images recorded in a plurality of different areas on an optical disc are reproduced as seamless continuous images, and the minimum length of the image required for seamless reproduction is provided. Is set as the minimum editing unit, and when the optical disc includes a discrete image of less than the minimum editing unit, one discrete image of less than the minimum editing unit and another discrete image to be reproduced before or after the discrete image are combined to obtain the minimum. When generating a single composite composite discrete image that is equal to or larger than the editing unit, the discrete images to be unified and combined are sequentially written to the hard disk, and when the writing of the discrete images to be unified and combined is completed on the hard disk, , A new writing area is searched for, and the composite discrete images integrated and combined on the hard disk are collectively written on the optical disk. Recorded in range, when the discrete images to be one of the other further present in the optical disk, an image editing method characterized by recording in the recording area of the optical disc the rest of the discrete images as another composite discrete image. 4. In order to seamlessly reproduce discrete images recorded in a plurality of different areas on an optical disc as seamless continuous images, the minimum length of the image required for the seamless reproduction is set as a minimum editing unit, When the optical disc includes a discrete image of less than the minimum editing unit, one discrete image of less than the minimum editing unit and another discrete image to be reproduced before or after the discrete image are combined to form a single unit of at least the minimum editing unit. An image editing apparatus for generating a composite discrete image, the optical disc having a recording area for the composite discrete image, recording image data including the discrete image, and recording and reproducing the image data on the optical disc. Signal recording / reproducing means, a hard disk for storing the discrete image reproduced by the signal recording / reproducing means, and the signal recording / reproducing means. A system control unit that controls reproduction and recording of image data, controls writing and reading to and from the hard disk, and instructs generation and reading of the composite discrete image, and the system control unit, When the discrete images to be unified and combined are sequentially written to the hard disk, and when the writing of the discrete images to be unified and combined is completed on the hard disk, a new writing area on the optical disc is searched and unified on the hard disc. The composite discrete image is collectively recorded in a new writing area on the optical disc by the signal recording / reproducing means, and when another discrete image to be integrated is further present on the optical disc, the remaining discrete image is recorded as another discrete image. An image editing apparatus, which records in a recording area of the optical disc as a composite discrete image.