JP3226419B2 - Image data recording system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image data recording system for recording image data on a recording medium such as an optical disk, and more particularly to a high-resolution image data obtained from a silver halide photographic negative film. The present invention relates to an image data recording system for recording an image on an optical disk.

[0002]

2. Description of the Related Art In recent years, a photo CD system for recording image data obtained from a silver halide photographic film brought in by a user on a write-once CD (compact disk) has been developed. Image data obtained from this silver halide photographic film has a resolution several times higher than image data obtained by other recording methods, for example, image data obtained by photographing with an electronic still camera or the like. And store them on a small, large-capacity compact disc,
It has been considered that the data is reproduced and used later, and is particularly taken into a processing device such as a computer and used effectively.

Conventionally, in such a photo CD system,
For example, a 35 mm negative film is scanned by a film scanner or the like to obtain image data of, for example, 2048 × 3072 pixels. The read image data is subjected to predetermined processing by an image processing device such as a computer and transferred to a recording device such as a CD writer. In this case, the image processing apparatus performs processing for recording such as color correction and compression processing on the image data from the scanner, and sequentially stores the processed image data in a main storage device such as a hard disk attached thereto. Next, when the processing of the predetermined number of image data is completed, the processing device creates an information file indicating the contents of the image data to be recorded, such as a directory. At this time, the processed image data is read from the attached hard disk and transferred to the second hard disk connected to the recording device. Image data transferred from the processing device is written to the second hard disk as continuous data.
In the recording device, first, an information file is recorded on an optical disk as a first track of a program area, and subsequently, image data recorded as continuous data on a second hard disk is sequentially read out, and these are read out of a second area of the program area.
The data is sequentially written on the optical disc as a track.

[0004]

However, in the above-mentioned conventional technology, two hard disks are required, and there is a problem that the system is expensive and the configuration is complicated. Further, since writing and reading are performed a plurality of times with two hard disks, there is a problem that it takes much time to record image data on an optical disk.

[0005] Therefore, it is conceivable to use only one hard disk and sequentially send data processed by the processing device to the recording device, and record the data on the optical disk by the recording device each time. However, in this case, continuous data is not sent from one hard disk to the recording device, and a plurality of tracks are formed on the optical disk. Therefore, a problem has arisen that the management file for these recorded image data must be created by a different creation method from that of a normal directory file. In recent years, it has been desired to record not only image data but also a description of the image data as audio data in a photo CD, and without considering a method of creating a management file in consideration of recording of the audio data. I didn't have to.

The present invention solves the above-mentioned conventional problems, and simplifies the system and takes into account the short-time data recording on the optical disk, and effectively manages the management file considering not only image data but also audio data. It is an object to provide an image data recording system that can be created.

[0007]

In order to solve the above-mentioned problems, an image data recording system according to the present invention performs a predetermined process for recording a plurality of image data on an optical disk, and stores the processed image data. In an image data recording system for sequentially recording on an optical disk, the system includes a data processing means for performing predetermined processing for recording a plurality of image data on an optical disk and transferring the image data as recording data; Data storage means connected to the data processing means for storing various data in the data processing means, wherein the data storage means sequentially stores image data subjected to predetermined processing; Area for temporarily storing image data from the data storage means, A work storage unit secured for the track; and a data recording unit for sequentially recording the image data from the work storage unit on the optical disk, wherein the data processing unit is transferred from the work storage unit to the data recording unit and recorded. And a management file creating means for creating a management file by obtaining a recording position for each track in consideration of a gap between tracks.

[0008] In this case, 1 is secured in the working storage means.
The capacity of the area for the track is preferably at least equal to or larger than the data amount of the image data having the largest data amount among the image data stored in the data storage means.

Further, it is advantageous that the capacity of the area for one track secured in the working storage means is a capacity capable of storing a plurality of image data. Further, the data processing means may record the management file created in the data recording means and then transfer the sequentially processed data to the image data recording means for recording.

This system has voice input means for inputting voice data. The voice data input from the voice input means is processed as one track by the data processing means and recorded by the data recording means. Good. Further, the optical disk is preferably a write-once optical disk.
The optical disk may be a rewritable magneto-optical disk. The image data stored in the main storage means is
The image data may be image data read from a silver halide photographic film, and may be data obtained by subjecting the image data to a predetermined compression process.

[0011]

According to the image data recording system of the present invention, the data processed by the data processing means is temporarily written into the data storage means, and the image data for one track is reliably stored in the working storage means. Even if the image data for one track is stored separately in the data storage means, the image data for one track can be transferred without interruption to the image data recording means via the working storage means. In this case, the data processing means obtains the position of each track in consideration of the capacity of a plurality of tracks transferred from the working storage means to the data recording device and the gap between the tracks when being recorded on the optical disk. , A management file is generated, sent to the data recording device, and recorded on the optical disk together with the image data.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of an image data recording system according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows a configuration of a photo CD system to which an embodiment of an image data recording system according to the present invention is applied. As shown in FIG. 1, the photo CD system in this embodiment
It includes a film scanner 10, an audio input device 20, a data processing device 30, a hard disk drive 40, and a CD writer 50.Each of these devices 10 to 50 is a SCSI (small com
puter system interface) It is connected by the standard bus 60. In this embodiment, data sequentially processed by the data processing device 30 is used as a recording track for a CD writer.
This is a system in which a gap between tracks is sequentially obtained when the data is transmitted to a storage device 50, a start address of each track is obtained, a management file including an index table having the track information is effectively created, and the management file is recorded on an optical disk.

The details of each part will be described. The film scanner 10 scans, for example, a 35 mm color negative film of a silver halide photograph and reads each color component of RGB (red, green, blue) for each pixel. The image reading apparatus outputs image data as an 8- to 10-bit digital signal. In the case of the present embodiment, the film scanner 10 reads 2048 × 3072 pixels per color image for each of the three RGB colors, and outputs a total of approximately 18 MB of image data. The film scanner 10 reads image data of 4096 × 6144 pixels from a double-size color negative film. In this case, a total of 72 MB of image data is output in three colors of RGB.

The audio input device 20 is an audio input device that outputs audio input via a microphone or the like as a digital signal of 8 to 16 bits. The audio input device 20 can also input audio data reproduced by a DAT player or the like.

The data processing device 30 includes a film scanner 10
It is a main processing unit for performing predetermined processing for recording on image data and audio data received from the audio input device 30, and is constituted by a general-purpose processing device such as a personal computer or a workstation. In particular, the image data read by the film scanner 20 is subjected to pre-processing such as gamma correction and color correction, and is further subjected to a known compression method such as ADCT (adaptive discrete cosine transcript).
In the case of 18 MB image data by the sform) method and Huffman coding, this is compressed into 3 to 6 MB data, and the processed data is sequentially recorded as hard disk data.
Perform the process of writing to 30. Advantageously, the original image data from the film scanner 10 is thinned to 1024x1
Generates multiple image data such as 536, 512x768, 256x384, 128x192 pixels, etc., and reproduces the image data of these multiple resolutions on the playback side. May be added to the recording data together with the compressed data of the original image data. In the present embodiment, a plurality of minimum image data are combined as one image and recorded on one track as an index image when selecting image data. When audio data is input as short data for each image from the audio device 20, the data for all images is integrated into one track and processed.

Further, the data processing apparatus in the present embodiment
30 is, for example, 32 MB of RAM (random access memo)
ry). This RAM is used for the data processing unit 30
OS (operating system) when performing data processing such as image editing, color correction, and compression
And 10 MB is allocated as a processing area of the application, and this area is used as a main memory. In this embodiment, in particular, the remaining 22 MB area of the RAM is used as a transfer area when the processed image data and audio data are read from the hard disk 30 and transferred to the CD writer 40. Specifically, the data processing device 30
A data transfer area of at least one track is secured in the RAM mounted on the HDD, that is, this area is used as a RAM disk, and image data and audio data from the hard disk 30 are stored here for one track without interruption. Later, the data is transferred to the CD writer 40. Theoretically, this transfer area only needs to have a storage capacity for at least one track continuously recorded on a compact disc. In this embodiment, the data for one image is given as compressed data of 3 to 6 MB in this embodiment.
It is sufficient to secure a transfer area of 9 to 18 MB in the RAM area by recording image data of two to three images on one track. However, it is not necessary to record data of a plurality of images on one track, and it is sufficient to record image data of at least one image. For example, in the system of the present embodiment, raw data of 18 MB read by the film scanner 10 is recorded as it is. When the high-magnification image data of 72 MB is read by the film scanner 10, the data compressed to 12 to 24 MB can of course be handled. Is allocated near 22MB. However, the audio data is processed so that all the data is included in the capacity of 22 MB and transferred as one track.

When recording a predetermined amount of image data, for example, recording image data of one negative film of 24 shots, the data processing device 30 creates a management file relating to the recording. In the case of the present embodiment, this management file includes, as shown in FIG. 2, an information file IF indicating a start address of each track of image data and audio data, and a linking file indicating an address of audio data corresponding to the image data. File CF and directory file DF indicating information such as the start address and file length or track length of all files and each track
Are created. In the case of this embodiment, since the image data is recorded in a plurality of tracks, the addresses of the information file IF and the directory file DF are obtained in consideration of the gap between these tracks. For example, each gap is 20 per sector
Spaced between tracks as a gap of 150 sectors given by 48 bytes. In the connection file CF, the image file name, the file name of the corresponding audio data, the start address thereof, and the reproduction time are obtained.

The hard disk 40 is an external storage device in which processed image data is sequentially recorded, and in addition, a system file of the data processing device 30 and various data related thereto are recorded. In the hard disk 40, necessary data is accessed when the data processing device 30 is started up, and various data including image data are written in the free space, respectively, and the data is stored in a state in which the data is hardened by so-called fragmentation. Will be done. As a result, when the image data is read from the data processing device 30, the respective image data seem to be continuous on the surface, but may be divided into distant addresses in actual access.
Reading may be interrupted depending on the moving time of the head. Therefore, directly reading the image data from the hard disk 40 and recording the data with the CD writer 50 results in a discontinuity in the data of one track.
This causes recording failure in the CD writer 50. Therefore, in the present embodiment, as described above,
A data transfer area for at least one track is secured in the RAM, and the recording data is transferred to the CD writer 50 via the data transfer area.

The CD writer 50 satisfies the compact disc standard from the image data received from the data processing device 30,
For example, the recording apparatus is formed of a recording device that forms a digital signal subjected to EFM modulation, modulates a light beam by this modulation method, and writes image data on a recording surface of a predetermined photo CD. Advantageously, a patent application filed by the same applicant as the applicant of the present application, a "high-speed recordable optical disk recordable optical disk" described in Japanese Patent Application No. 3-15817 or the like is used. This recording device is a device capable of performing higher-speed recording than a conventional recording device, and a compact disc used in this case is, for example, a write-once type using a material described in Japanese Patent Application No. 2-191257. Is advantageously used. These combinations enable high-speed recording and reproduction with little jitter. The compact disc recorded by this CD writer 50 can be played back on a home photo CD player, CD-I player or personal computer equipped with a CD-ROM XA (extended architecture) standard compatible drive. As a result, an image can be reproduced on any display or an ordinary television receiver, particularly a high-resolution display device.

The CD writer 50 in this embodiment forms one track with a lead-in area indicating the start of a recording area along a spiral line extending from the center side of the compact disc to the peripheral edge, that is, a so-called pre-groove. The management file, the image data constituting the plurality of tracks # 1 to #n, the audio data contained in one track, and the lead-out area indicating the end of the recording area are written.
The management file, image data, and audio data are written for each track in the order in which they are transferred from the data processing device 30, and the lead-in area and the lead-out area are recorded after writing the management file and the image data. Is done. A gap of several milliseconds is formed between each area and each track, and at least each track must be continuously written.

In the photo CD system configured as described above, first, a negative film is read frame by frame by the film scanner 10 and input to the data processing device 30 as digital image data. For example, image data
The image data is read as image data of 2048 × 3072 pixels and transferred to the data processing device 30. When reading of a predetermined number of films, for example, 24 films, is completed, audio data for each image is supplied to the data processing device 30 via the audio input device 20. The data processing device 30 that has received the image data and the audio data performs processing such as color correction on the image data, further performs compression processing, sequentially generates recording image data, and further generates index image data. Writing to the hard disk 40 sequentially.

Next, the data processing device 30 that has processed the audio data and the image data creates a management file. In this case, first, the data processing device 30 creates each of the information file IF, the connection file CF, the own file DF and the CD-I software SO in consideration of the pre-gap G1 as shown in FIG. Of the first track, that is, the address of the management file. Next, the addresses of the second to Nth tracks are obtained. At this time, in particular, since the image data is composed of a plurality of tracks, the start address of each track is obtained as described below in consideration of the capacity of the image data and a certain gap between the tracks.

That is, first, the data processing device 30 secures a transfer area of the RAM disk of 22 MB. For example, if the previous data remains, delete
All areas are reserved as transfer areas. Next, the data processing device 30 selects the first three to four (m) data out of a predetermined number, for example, 24 (n). In this case, it is determined whether or not these m pieces of image data can be stored in the transfer area of the RAM, and the data amount for one track is confirmed. In other words, the data size of the first image data is checked, and if the data size can be stored in the RAM, the data size of the next second image data is checked, and these two image data are checked. Determines whether data enters RAM. Furthermore, if these can be stored in the RAM, the data size of the next third image data is checked to determine whether all of the first to third images can be stored. In the case of this embodiment,
Since the image data is 3 to 6 MB, it is possible to accumulate almost up to three sheets. If the data amount of the next fourth sheet is not confirmed, and the data of the fourth sheet cannot be accumulated, the first to third sheets can be stored. The image data forms the first track of the image data, and its capacity is determined. Next, the start address of the second track of the image data is obtained in consideration of the capacity and gap of the first track of the image data, and the capacity of the second track of the image data is obtained in the same manner as described above. Thereafter, the start address of each image data track is calculated in consideration of the track capacity and gap of the image data to be recorded,
Further, a start address of the audio data is obtained in consideration of a gap between the image data and the audio data, and a directory file is created.

When the creation of the directory file DF is completed, the data processing device 30 sends the information file IF
Is created, and then a connection file CF is created. When creating the connection file CF, the audio data stored in the data processing device 30 is integrated, and the integrated audio file is sequentially converted from the start address obtained above into the corresponding image. The start address is obtained for each data, and the file name of the audio data with respect to the file name of the image data, the respective start addresses and the reproduction time are recorded. Thus, the creation of the management file ends.

When the creation of the management file is completed, the data processing device 30 stores the management file in its RAM, generates a continuous file, and sends it to the CD writer 50 via the bus 60. Upon receiving the management file, the CD writer 50 opens the recording area of the lead-in area and the pre-gap G1 from the inner peripheral side of the compact disc, and records the management file as the first track.

Next, the data processing device 30 converts the image data
When these data are completely stored in the RAM and stored in the RAM, the data is transferred to the CD writer 50 via the bus 60 without interruption as data for one track. CD that received this
The writer 50 opens a pre-gap from the end position of the management file and transfers the data from RAM to the first track of the image data.
Write sequentially to the area of T2.

Thereafter, the above operation is repeated, recording of each track of image data is performed, and when recording of all data, that is, in this case, 24 pieces of data of one user is completed, the data processing device 30 All the audio data is read out, written to the RAM, and transferred from the RAM to the CD writer 50 in the same manner as described above. This allows the CD
The writer 50 records the received audio data on the optical disc as the last track. Finally, the CD writer 50 writes the lead-in area before the first track T1 on which the management file is recorded, writes the lead-out area after the audio data, and ends the recording on the optical disc.

When recording the data of the next user, the compact disk of the previous user is removed from the CD writer 50, and the compact disk for the next user is mounted. By performing the processing, the image data of the next user recorded on the hard disk 40 is recorded.

As described above, in the present embodiment, a part of the RAM of the data processing device 30 is used as a data transfer area to the CD writer 50 to secure the capacity for one track of the compact disk and read from the hard disk 40. Image data
Since the image data is sequentially transferred through the transfer area of the RAM, the hard disk 40 is in a so-called fragmentation state in which each image data or image data for one track is intermittently recorded at different addresses. In addition, recording failure can be almost completely eliminated without interruption of data when writing each track by the CD writer 50. Furthermore, since the image data is transferred via the RAM, the data recording time in the system can be greatly improved as compared with the case where the data is transferred via another hard disk. For example, while the access time on a hard disk is generally tens of milliseconds, RA
Since the access time in M is several tens of nanoseconds, it is only necessary to pay attention to the read time on the hard disk almost at the time of recording, and the transfer time of about half of that when two hard disks are used is sufficient. Therefore, there is almost no waiting time after one track is recorded on the CD writer 50 side, and the recording time of the entire system depends on the recording time of the CD writer 50. In this case, the recording time is less than half the recording time as compared with the conventional recording, and the service to the user can be remarkably improved.

Further, according to this embodiment, after processing image data and audio data, a management file is created, and a gap between tracks formed at that time, in particular, a plurality of tracks formed in recording of image data. The start addresses are obtained in consideration of the gaps between them, and the audio data is recorded as one track and recorded sequentially from the management file, so that the capacity of the disk can be used without waste.

[0031]

As described above, according to the image data recording system of the present invention, the image data which has been subjected to the predetermined processing and stored in the data storage means is stored in the data storage means through the working storage means. Since each track is reliably transferred to the data recording means, failure of recording for each track by the data recording means is prevented. Therefore, the waste of the compact disc due to the recording failure and the time required for re-recording the compact disc can be significantly reduced. Further, since it is not necessary to transfer all data to be recorded on the optical disc to another large-capacity storage means, it is possible to greatly reduce the time required for transferring the image data to the recording means. Further, the system configuration is simple and the system can be configured at low cost. Further, after processing the data, a management file is created, and the start addresses of the respective files are obtained in consideration of gaps between tracks formed at that time, particularly gaps between a plurality of tracks formed in recording image data. Also, since the audio data is recorded as one track and sequentially recorded from the management file, the capacity of the disk can be used without waste.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a photo CD system to which an image data recording system according to the present invention is applied.

FIG. 2 is a diagram showing a schematic format configuration of a photo CD applied to the embodiment shown in FIG. 1;

[Explanation of symbols]

 10 Film scanner 20 Audio input device 30 Data processing device 40 Hard disk 50 CD writer 60 SCSI bus

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04N 5/76-5/956 G06F 3/08

Claims (7)

(57) [Claims] 1. A image data of multiple screen by performing predetermined processing for recording on the optical disk, the image data recording system sequentially records the image data the processing to the optical disk, the system comprising the multiple screen Data processing means for performing predetermined processing for recording the image data on the optical disc and transferring the image data as recording data; and storing various data in the data processing means connected to the data processing means. Data storage means for sequentially accumulating the image data subjected to predetermined processing; and work storage means for use in processing by the data processing means, the data storage means comprising: Transferred from storage means
Image data of one or more screens
A work storage means for temporarily storing image data in a predetermined storage area ; and a data recording means for sequentially recording image data from the work storage means on an optical disk, wherein the data processing means comprises: the work storage means Of the image data of each track transferred from the
Each track based on the data volume and gap between the tracks.
Recording position and recording position of each screen on each track
Management file creation means for creating a management file in response to the
After transferring the file to the image data recording means,
Image data stored in the data storage means in one track
The data is transferred to the work storage means and stored in
Image data for one track stored in the
An image data recording system , wherein the image data is continuously transferred to the image data recording means . 2. The image data recording system according to claim 1, wherein the capacity of the area for one track secured in said working storage means is at least the largest of the image data stored in the data storage means. An image data recording system, wherein the data amount is equal to or more than the data amount of image data having a data amount. 3. The image data recording system according to claim 1, wherein a capacity of an area for one track secured in said working storage means is a capacity capable of storing a plurality of image data. Image data recording system. 4. The image data recording system according to claim 1, further comprising: voice input means for inputting voice data, wherein the voice data input from the voice input means is processed by the data processing means in one form. An image data recording system, wherein the image data is recorded as a track and recorded by the data recording unit. 5. The image data recording system according to claim 1, wherein said optical disk is a write-once optical disk. 6. The image data recording system according to claim 1, wherein said optical disk is a rewritable magneto-optical disk. 7. The image data recording system according to claim 1, wherein the image data stored in the main storage means is image data read from a silver halide photographic film, and a predetermined value is added to the image data. An image data recording system, which is data subjected to compression processing.