JPH01155477A - Multilevel image filing device - Google Patents

Abstract

PURPOSE:To heighten the compressibility of an image and to increase the number of sheets to be recorded by switching a compression method based on the kind of an input device for the image at an image compression/expansion part provided with an image compression/switching circuit, a reversible compression/expansion circuit, and a non-reversible compression/expansion circuit. CONSTITUTION:The image is read at an operating part 6 by a designated film scanner 12, and is inputted and stored in an image memory 1. After that, data in the memory 1 is read out to the image compression/expansion part 20, and the non-reversible compression/expansion circuit 18 is selected at the image compression/switching circuit 19 because the scanner 12 is used as the input device, then, a compression processing is performed. Compression data of the image obtained at the expansion part 20 is stored in an external memory device 3. In case of receiving indication to use a CT scanner 10 as the input of the image, the image is read by the scanner 10, and is inputted and stored in the memory 1. Afterwards, the data in the memory 1 is read out to the expansion part 20, and the reversible compression/expansion circuit 17 is selected because the scanner 10 is used as the input device, then, the compression processing is performed by the circuit 19. Hereafter, the same processing is performed similarly as in case of inputting the image by the scanner 12.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention provides a multi-value image in which character information is added to multi-value ubi acupuncture information and recorded on a storage device such as an optical disk, and then image information is extracted from the storage device. It relates to file devices.

[Conventional technology]

FIG. 2 shows a conventional image file device for rice seeds. Second
In the figure, 11) is digitized and fc11! Il
Image memory that stores image data, C2) is image memory +
1) is an image compression/decompression unit that has a function of compressing the image data stored in the image data and a function of performing all decompression processing of the compressed data and inputting the result to the image memory 11); (3) is recording of data on a recording medium. and an external storage device such as an optical disk that performs stretching, C4) records and reads compressed data and attached data input and output between the external storage device (3) and the image compression/expansion unit 12) into the storage medium. (5) is an external storage interface for exchanging data; (5) is a microcomputer that controls and manages the entire operation of the device, which is equipped with various general-purpose arithmetic processing functions, information storage, and input/output functions;
6) is an operating section through which an operator instructs control contents to the microcomputer (5), and (7) is an operating section interface for transmitting instruction contents inputted from the operating section (6) to the tfJe microcomputer (5). , (8) is a printer interface that creates a printer signal from the image data output from the image memory +11, (9) is a printer that prints an image based on the print signal output from the printer interface (8), +U)
is a medical image diagnostic device that generates and outputs the internal structure and characteristics of a subject as image data.
Tomognaphg) OT scanner, Uυ is O above
The OT scanner interface inputs the digital image signal output from the TS*YANA UL to the image memo January 1), a'zr is the film scanner that reads the digital image data from the X-ray film, and Oy is the OT scanner interface that inputs the digital image signal output from the T*YANA UL to the image memo January 1). A film scanner interface inputs the image data output from the scanner 113 to the image memory +1), +14 is a display interface that creates an image display signal from the image data output from the image memory +ll, and u9 is the display The display panel displays an image based on the image signal output from the panel interface I. +le is the input/output bus of the microcomputer (5).

Next, the operation will be explained.

Input of multi-purpose iron and recording filing to storage medium
Operation unit (Input instructions for the corresponding Ith work from 61 are input to operation unit 1.
The data is transmitted to the microcomputer (5) via the interface (7) and the input/output bus n41i, and is controlled by the microcomputer (5) according to the following procedure. The image is displayed on the film scanner 'J' that was instructed on the operation section 16).
is read by the film scanner interface fIl and input/output bus (formerly image memory +1). Thereafter, the multivalued image data in the image memory 11) is sent to the image compression/decompression unit (2) via the input/output bus US.
The multi-valued image data is read out and supplied to the multi-valued image data for compression processing.

Furthermore, the image is obtained by this image compression/expansion section (2).

The compressed data of the image is recorded on the storage medium by supplying it to the external storage device dC31K via the input/output bus (1e) and the external storage interface (4).In addition, the attached data of the image is recorded by the operator from the operation unit (6). Enter characters.

The information is transmitted to the microcomputer (5) via the operating unit interface (7), supplied to the external storage device (3) K via the input/output bus (1e, external storage interface 14), and recorded on a storage medium. To record multiple images in their entirety, repeat the above steps. Image input to OT scanner 1
is read by the OT scanner tll and outputs the OT scanner interface αυ and input/output bus ζ
19, the image data is input and stored in the image memory 11). The following processing is the same as when inputting from the film scanner IJ.

In addition, for reading out, decompressing, and displaying the image recorded on the storage medium, the instruction input for sugito operation from the operation unit (6) is transmitted to the microcomputer (5) via the operation unit interface +7) and the input/output bus uti. The following procedure is performed under the control of the microcomputer (5).

The compressed data of the image recorded on the storage medium is read from the external storage device (3), and the compressed data is supplied to the image compression/expansion unit (2) via the external storage interface (4) and the input/output bus 1+19. The image compression/expansion unit (2) expands the expanded image data, and transfers the expanded image data to the input/output bus 1.
1+1 and is input and stored in the image memory H). If necessary, the information can be displayed on the display via the display interface 1141').

Furthermore, the output to the printer (9) is inputted from the operation unit (6) to the microcomputer +51K via the operation unit interface 17) and the input/output bus 11G.
The information is transmitted and executed in the following procedure under the control of the microcomputer (5). For images recorded on the storage medium, use the same procedure as above to read out, expand and display (Image memo +)
+1). After that, input/output bus 11
The image data stored in the image memory 11)K is sent to the printer (9) via the f9 and printer interface (8).
). Same as above, when outputting a plurality of images f, repeat the output from image memo January 1).

[Problem that the invention seeks to solve]

The conventional multivalued image file device is configured as described above, and when compressing multivalued image data, there is only one image compression/expansion unit, so the compression method is reversible compression ICL7'? case O
Images from a T-scanner have a large black-and-white contrast and a large amount of image data with the same density, resulting in a high compression ratio, but images from an X-ray film are the opposite of images from an OT scanner, resulting in a poor compression ratio. Furthermore, when irreversibly compressed, the compression rate of X-ray film images is high, but the compression rate of OT scanner images is poor, or when the image is reproduced, there is a problem that it differs greatly from the original image and appears unnatural.

This invention was made to solve the above-mentioned problems, and it is a multivalued image that can be compressed more faithfully to the original image, with a higher compression rate, and that can increase the number of images recorded on a storage medium. The purpose is to obtain a file device.

[Means for solving problems]

In addition to the configuration of the conventional device described above, the multivalued image file device according to the present invention has an image compression/expansion section including an image compression switching circuit using an image input device, a reversible compression/expansion circuit using a reversible compression method, and an irreversible compression/expansion circuit using an irreversible compression method. It is equipped with the following.

[Effect]

In this invention, when compressing an image, the compression method for the image data read from the image input device is selected by the image compression switching circuit depending on the type of the input device. Compression processing is performed, and the compression rate becomes high (and the number of images recorded on the storage medium also increases).

〔Example〕

FIG. 1 is a diagram showing an embodiment of the present invention.

In FIG. 1, +11, 13) to ue are the same as or equivalent to the same reference numerals in FIG.

α71#-i Reversible compression/expansion circuit that reversibly compresses images, α
l is an irreversible compression/expansion circuit that irreversibly compresses an image, (1
Reference numeral 9 denotes an image compression/expansion circuit which is switched depending on the type of the image input device of the compression/expansion circuit 09011, and an image compression/expansion section equipped with the above three circuits.

Next, the operation will be explained. Inputting a multivalued image and recording it on a storage medium 7 Ai Ring transmits instructions for the relevant operation from the operation unit (6) to the microcomputer (5) via the operation unit interface (7) and input/output bus ue'6. The following procedure is performed under the control of the microcomputer (5). When the image is read by the film scanner α2 instructed by the operation unit (6), it is input and stored in the image+1 memory t1) via the film scanner interface 03 and the input/output bus +le'. Thereafter, the multi-valued image data of the image memo IJ+1) is read out and supplied to the image compression switching circuit via the input/output path ue2, and the image compression switching circuit Ik is activated. Selected and compressed.

Furthermore, the compressed image data obtained by this image compression/expansion section ■ is transferred to the input/output path (1e, external storage interface (
4) to the external storage device (3) to record it on the storage medium. In addition, data attached to the image is input by the operator through the operation unit (6), transmitted to the microcomputer 15) via the operation unit interface (7), and sent to the external storage device via the input/output bus U61 and external storage interface 14). (3) and recorded on a storage medium. If you want to record multiple images, repeat the above steps. When the CT scanner uI is instructed to input an image, the image is read by the CT scanner a1 and input and stored in the OT scanner interface [111 and the input/output bus (Image Memo January 1) via the input/output bus 19]. Then input/output bus U
The image data in the image memory (1) is read out and supplied to the image compression/expansion section (1) via the FA, and the one-image compression switching circuit fi9
Since the input device is the CT scanner a, the reversible compression/expansion circuit (In) is selected and compression processing is performed.

Furthermore, instructions for continuing, decompressing, and displaying the images recorded on the storage medium are inputted from the operation unit (6) to the microcomputer via the operation unit interface (7) and the input/output bus 1e. f51 K transmitted.

The following procedure is performed under the control of the microcomputer (5). Compressed data of image data recorded on a storage medium is read from an external storage device (3), and this compressed data is supplied to an image compression/expansion unit (2) via an external storage interface (4) and an input/output bus 1161. 1
Depending on the image data compression method (reversible, non-oJ reverse), the image compression switching circuit (19)
Alternatively, the irreversible compression circuit a second is selected to expand the image data, and all the expanded image data is input and stored via the input/output bus 19 in the image memo 111C. Display plate 1 via display interface U4 as required.
1>.

Furthermore, the (support) force for the printer 19) is transmitted from the operation unit (6) to the microcomputer (5) via the operation unit interface (7) and the large output bus 1161'j). l of computer (5)
? I11@ll performs the following procedure. The image recorded on the recording medium is read out, expanded, and
The data is read and stored in the 11M memory lJ+1) according to the procedure. Thereafter, the illustrator data stored in the image memo is outputted to the printer (9) via the input/output bus uIlil and the printer interface (8).

[Effects of the Invention] As described above, according to the present invention, when compressing ll1ll image data, the compression method uses an image compression/expansion section equipped with a one-image compression switching circuit, a reversible compression/expansion circuit, and an irreversible compression circuit. Since the compression method can be switched depending on the AT type of the input device at home, the compression rate of the 9 images is high, and
This has the effect of increasing the number of images recorded on the storage medium.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment of the multi-value image file device of the present invention, and FIG. 2 is a diagram showing a conventional multi-value image file device. In the figure, (1) is an image memory, (2) is an image compression/expansion section, (3) is an external storage device, (4) is an external storage interface 9, (5) is a microcomputer, and (6) is an operation section. (7) is the operation unit interface, (8) is the printer interface 7x, 191 is the printer, al is O'l
”scanner, an is a CT scanner interface,
[12 is the film scanner, (I3 is the film scanner interface, I is the display interface, and the shout is the display.
flf9 is an input/output bus, and aη is a reversible compression/expansion circuit. Alternatively, σS is an irreversible compression/expansion circuit, and σS is a reversible compression switching circuit. The handle is an image compression/expansion section. Note that the same reference numerals in Figure 9 indicate the same or corresponding parts.

Claims (1)

[Claims] An image memory that stores image data, a reversible compression/decompression circuit that compresses the image data stored in this image memory, decompresses the compressed data, and inputs the compressed data into the image memory, and a non-reversible compression/decompression circuit that performs irreversible compression/decompression. reversible compression/expansion circuit,
an image compression/expansion section having an image compression/expansion circuit that switches between the two compression/expansion circuits depending on the type of image input device, and recording of data on a recording medium such as an optical disk;
An external storage device that performs reading, an external storage interface that exchanges data recorded and read from a storage medium, mainly compressed data that is input and output between this external storage device and the image compression/expansion section, and the entire device. A microcomputer for controlling and managing, an operation unit and an operation unit interface for inputting control contents to the microcomputer, a printer interface for creating a print signal from image data output from the image memory, and this printer. - A printer that prints images using print signals output from an interface, a film and scanner that read X-ray film images as digital image data, and an image signal output from this film scanner that is received and input into the image memory. A CT scanner, which is an imaging diagnostic imaging device that generates and outputs the internal structure and characteristics of a subject as image data, receives image signals output from the CT scanner and stores them in the image memory. a CT scanner interface for inputting data, a display interface for creating an image display signal from the image data output from the image memory, and a display plate for displaying the image signal based on the image signal output from the display interface. A multivalued image file device characterized by: