JPH07298190A - Still picture recording device - Google Patents

Abstract

PURPOSE:To provide the still picture recording device with which work processing at an image processing means can be easily performed and video data for one picture can be continuously recorded at fixed time intervals. CONSTITUTION:A video signal VIN is inputted to an input terminal 1 and converted to video data by an A/D converter 2, and the video data for one picture are stored in a memory part 3. The data in the memory part 3 are recorded through a controller 6 and an interface 7 into a storage device 8. When processing the video data, the data recorded in the storage device 8 are supplied through the interface 7 and the controller 6 to a formatter 9. The format of video data is transformed by the formatter 9, and those data are supplied through an SCSI control part 10 to a personal computer 11. The video data are processed at the personal computer 11. The processed video data are recorded in the storage device 8 again. These video data can be easily processed by the image processing means. Further, the video data can be continuously recorded at fixed time intervals.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a still picture recording apparatus for recording video data of a still picture and recording processed video data.

[0002]

2. Description of the Related Art Currently, there is a demand for electronic filing of high-definition still images mainly in the medical field.

Conventionally, as a still image recording device, a still image recording device for recording video data on a digital signal recording medium such as a digital audio tape, a magneto-optical disk or a floppy disk has been proposed.

In the video data recorded in this still image recording apparatus, for example, the luminance signal Y and the carrier color signal C of the NTSC system are 4 fSC (fSC is a color subcarrier frequency).
Sampled at the sampling frequency of 480, 1 sample of 8 bits and 1 screen of video data
When video data for one line is used, 910
The data amount is × 480 × 8 × 2≈approximately 1 Mbytes.

[0005]

By the way, continuous image recording at intervals of about 1 second is required for endoscopic inspection, mydriatic camera inspection, etc. in the medical field. Further, in order to obtain a high-definition still image, it is necessary to record video data without compression processing.

However, the above-mentioned conventional still image recording apparatus cannot continuously record 1 Mbytes of video data at intervals of about 1 second. For example, it takes about 5 seconds if the recording medium is a digital audio tape, about 3.5 seconds if it is a magneto-optical disk, and 10 seconds or more if it is a floppy disk.

A general-purpose interface (for example, SC
When the video data is recorded on the disc-shaped recording medium using an SI interface), the video data is not continuously transferred due to the occurrence of interrupt processing, etc., and the video data is divided into various parts on the inner and outer circumferences of the disc-shaped recording medium. Since this is recorded, a seek time for media access is required. Therefore, the recording time of the video data for one screen is not constant, and it is difficult to continuously record the video data for one screen at regular time intervals.

Further, the video data recorded on the recording medium is processed by image processing means such as a computer,
There is also a strong desire to record the processed video data again.

In view of the above, the present invention provides a still image recording apparatus which can easily perform processing by the image processing means and can continuously record one screen of video data at regular time intervals.

[0010]

According to another aspect of the present invention, there is provided a still image recording apparatus, in which memory means for storing at least one screen of video data and one screen of video data read from the memory means are sequentially recorded. Recording means, a video interface means interposed between the memory means and the recording means, an image processing means for processing the video data recorded in the recording means, and a video interface means and the image processing means. The image processing interface means, the memory means, the recording means, the video interface means, and the control means for controlling the operations of the image processing interface means are provided.

In the still image recording apparatus according to the second aspect of the invention, when the video data recorded in the recording means is processed by the image processing means, the video data recorded in the recording means is passed through the video interface means and the image processing interface means. Is supplied to the image processing means.

A still image recording apparatus according to the invention of claim 3 records the video data processed by the image processing means in the recording means via the image processing interface means and the video interface means.

[0013]

In the present invention, since the video interface means and the image processing interface means are provided, the video data recorded in the recording means is supplied to the image processing means via the video interface means and the image processing interface means.

Therefore, the video data can be easily processed by the image processing means, and the processed video data can be easily recorded in the recording means.

Further, since the video data stored in the memory means is supplied to the recording means via the video interface means, the transfer of the video data is not interrupted due to the occurrence of interrupt processing or the like, and one screen worth of video data is not interrupted. It is possible to continuously record the video data of the above at a constant time interval.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the still image recording apparatus according to the present invention will be described below with reference to FIG.

In FIG. 1, 12 is a system control microcomputer (hereinafter referred to as "system microcomputer").
That is). The system microcomputer 12 controls a console control microcomputer (hereinafter referred to as “console microcomputer”) 14. In the console microcomputer 14, the key operation of the connected key operation unit 15 is determined, and the display unit 16 is connected to display the key operation and the operation of the still image recording device.

When the key operation unit 15 is operated and an operation signal is supplied from the console microcomputer 14 to the system microcomputer 12, the system microcomputer 12 and a frame memory unit 3 and a video storage controller, which will be described later, are supplied via the image control bus 17. Communication regarding the control operation is performed between the control unit 6 and the formatter 9, and video data is transferred via the image data bus 18 according to the operation signal.

By the way, the analog video signal VIN (for example, RGB video signal or Y / C separated video signal) input to the video input terminal 1 is converted into an A / D converter 2.
Is supplied to. In the A / D converter 2, the video signal VIN is converted into digital video data and supplied to the frame memory unit 3. The frame memory unit 3 stores at least one screen of video data. The stored video data is output from the frame memory unit 3 via the image data bus 18 in accordance with a control signal supplied via the image control bus 17.

The video data for one screen supplied to the frame memory unit 3 via the image data bus 18 is
The data is stored in the frame memory unit 3, converted into an analog video signal VOUT by the D / A converter 4, and output from the video output terminal 5.

In the video storage controller 6 connected to the image control bus 17 and the image data bus 18, according to a control signal supplied via the image control bus 17, writing of video data to the storage device 8 described later and storage device The read control of the video data recorded in 8 is performed. Note that the video storage interface 7 is used for writing and reading this video data.
Done through.

This video storage interface 7
Does not mean that the transfer of video data is not interrupted by an interrupt operation or the like as in the case of the SCSI interface, but the video data for one screen can be input / output continuously to / from the storage device 8 without interruption. is there.

The storage device 8 connected via the video storage interface 7 comprises a so-called Bernoulli disk drive. This Bernoulli disk drive is a disk drive that applies the mechanical properties of a fluid expressed by Bernoulli's theorem, and has a removable recording medium and a capacity of 150 Mbytes per recording medium, and approximately 1 Mbyte / sec. It has a recording and reproducing speed of. The storage device 8 is not limited to the Bernoulli disk drive, and may be a hard disk drive or the like.

A formatter 9 is connected to the image control bus 17 and the image data bus 18.
The formatter 9 processes the video data supplied via the image data bus 18 in accordance with a control signal supplied via the image control bus 17 by a personal computer (hereinafter referred to as “personal computer”) 11 which will be described later. It is a file format that can be converted. For example, the video data is converted by the formatter 9 into a TIFF format known as an image file format. The TIFF format is a file format in which attribute information of image data called TAG is recorded at the beginning of the image file.

The formatter 9 is not limited to the format of the TIFF format, but may be the formatter of another image file format.

The video data processed by the formatter 9 is supplied to the personal computer 11 via the SCSI control unit 10 and processed such as data processing.

The personal computer 11 is also connected to the system microcomputer 12 via the RS232C interface 13.

The present example is configured as described above, and next, operations such as image recording and processing will be described.

First, when video data is recorded in the storage device 8, when the recording key of the key operation unit 15 is operated, an operation signal is supplied from the console microcomputer 14 to the system microcomputer 12. Next, a control signal is supplied from the system microcomputer 12 to the frame memory unit 3 and the video storage controller 6. In the frame memory unit 3,
One screen of video data of the video signal VIN input from the video input terminal 1 is stored.

Next, when the video data for one screen is stored, the video data is supplied to the video storage controller 6 via the image data bus 18, and then to the storage device 8 via the video storage interface 7. Will be recorded. The video data for one screen is recorded at consecutive positions in the video data area of the storage device 8.

Further, from the video storage controller 6, management information such as a picture number of recorded video data and start information indicating from which sector of the video data area the recorded video data was recorded is stored in the storage device 8. Supplied. The management information is recorded in the directory area of the storage device 8.

Next, the case where the video data recorded in the storage device 8 is read will be described. Key operation part 15
When the reproduction key of is operated or the picture number of the recorded image is designated by the ten-key, a control signal is supplied from the system microcomputer 12 to the video storage controller 6 and the frame memory unit 3 via the image control bus 17. It

In the video storage controller 6, the video data recorded in the video data area is read out by referring to the management information recorded in the directory area of the storage device 8 in accordance with the supplied control signal.

The read-out video data for one screen is stored in the frame memory section 3 via the image data bus 18, converted into the video signal VOUT by the D / A converter 4, and then output to the video output terminal 5. Is output from.

Next, a case where the personal computer 11 processes the video data recorded in the storage device 8 such as data processing will be described.

When the video data recorded in the storage device 8 is read out by the personal computer 11, the operation signal becomes R
It is supplied to the system microcomputer 12 via the S232C interface 13. Next, a control signal is supplied from the system microcomputer 12 to the video storage controller 6 and the formatter 9.

The video storage controller 6 reads the video data recorded in the video data area with reference to the management information recorded in the directory area of the storage device 8 in accordance with the supplied control signal.

The read-out video data for one screen is supplied to the formatter 9 via the image data bus 18 and converted into, for example, the TIFF format.
The video data converted into the TIFF format is sent to the personal computer 11 via the SCSI control unit 10.
Is supplied to. In the personal computer 11, the supplied video data is displayed on the screen and processing such as data processing is performed.

When the video data that has been subjected to this processing is recorded again in the storage device 8, when the recording processing operation is performed by the personal computer 11, an operation signal is supplied to the system microcomputer 12 via the RS232C interface 13.
Next, a control signal is supplied from the system microcomputer 12 to the formatter 9 and the video storage controller 6.

In the formatter 9, the video data in the TIFF format after the data processing supplied from the personal computer 11 via the SCSI control unit 10 is returned to the original format. The video data returned to the original format is supplied to the video video storage controller 6 via the image data bus 18.

This video data is processed in the same manner as the above-described video data recording process and recorded in the storage device 8.

In the above-mentioned embodiment, the operation signal from the personal computer 11 is supplied via the RS232C interface 13, but it may be supplied via another interface, for example, the SCSI control unit 10.

Further, the video data that can be processed by the personal computer 11 is not limited to the video data recorded in the storage device 8, and it goes without saying that the video data stored in the frame memory unit 3 may be used.

As described above, according to this embodiment, the storage device 8
Since the video data recorded in is supplied to the personal computer 11 via the video storage controller 6, the formatter 9, etc., the personal computer 11 can easily process the video data and the processed video data can be stored in the storage device 8. Can be recorded in. Further, since the video data stored in the frame memory unit 3 is supplied to the storage device 8 via the video storage interface 6 and the video storage interface 7, the transfer of the video data may be interrupted due to occurrence of interrupt processing or the like. Therefore, one screen of video data can be continuously recorded at regular time intervals.

[0045]

According to the present invention, since it has the video interface means and the image processing interface means,
The video data recorded in the recording means is supplied to the image processing means via the video interface means and the image processing interface means.

Therefore, the video data can be easily processed by the image processing means, and the processed video data can be easily recorded in the recording means.

Further, since the video data stored in the memory means is supplied to the recording means via the video interface means, the transfer of the video data is not interrupted due to the occurrence of interrupt processing or the like, and one screen worth of video data is not interrupted. The video data of can be continuously recorded at regular time intervals.

[Brief description of drawings]

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

[Explanation of symbols]

 1 Video Input Terminal 2 A / D Converter 3 Frame Memory Section 4 D / A Converter 5 Video Output Terminal 6 Video Storage Controller 7 Video Storage Interface 8 Storage Device 9 Formatter 10 SCSI Control Section 11 Personal Computer 12 System Microcomputer 13 RS232C Interface 14 Console microcomputer 15 Key operation part 16 Display part 17 Image control bus 18 Image data bus

Claims (3)

[Claims] 1. A memory means for storing at least one screen of video data, a recording means for sequentially recording one screen of video data read from the memory means, and an intervening device between the memory means and the recording means. Video interface means, image processing means for processing the video data recorded in the recording means, image processing interface means interposed between the video interface means and the image processing means, the memory means and the above A still image recording apparatus comprising: recording means, video interface means, and control means for controlling the operation of the image processing interface means. 2. When the video data recorded in the recording means is processed by the image processing means, the video data recorded in the recording means is transferred to the image processing means via the video interface means and the image processing interface means. The still image recording device according to claim 1, wherein the still image recording device is supplied. 3. The still image recording apparatus according to claim 1, wherein the video data processed by the image processing means is recorded in the recording means via the image processing interface means and the video interface means. .