JPH04156673A - Radiation picture reader - Google Patents

Abstract

PURPOSE:To easily obtain the correspondence of image information with subordinate information by providing a card image reader, reading the subordinate information described on an ID card, and obtaining an image signal. CONSTITUTION:When X-ray film 6 is carried in a direction of Y and it arrives at a position sandwiched between a lamp 7 and a line sensor 8, light emitted from the lamp 7 is modulated by an X-ray image recorded on the film 6 and transmits it. When the film 6 is carried in the direction of Y repeatedly, an analog signal SA in accordance with the entire plane of the X-ray image recorded on the film 6 can be obtained. The signal SA is converted into a digital image signal by an A/D converter 11. The signal is sent to an optical disk device as being conformed to a processing date, a number, and the subordinate information as the image information inputted from the card image reader mutually, and is stored in an optical disk 12. Thereby, it is possible to easily obtain the correspondence of the image information with the subordinate information, and to obtain the image information by reading the subordinate information.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention includes a so-called film digitizer (FD) that photoelectrically reads a radiation image recorded on a silver halide film such as an X-ray film to obtain an image signal. The present invention relates to a radiation image reading device.

(Prior Art) It is practiced in various fields to read a recorded image to obtain an image signal, perform appropriate image processing on the image signal, and then reproduce and display the image.

In such a system, an X-ray image is recorded on the X-ray film by combining an X-ray film with a low gamma value designed to be compatible with subsequent image processing with an intensifying screen, and the X-ray image is After developing the film on which the image has been recorded, a device called a film digitizer (FD) is used to read the X-ray image from the film and convert it into an electrical signal (image signal), and then performs image processing on this image signal. After that, the reproduced image is reproduced as a visible image in a photocopy or the like to obtain a reproduced image with good image quality performance such as contrast, sharpness, and graininess (see Japanese Patent Publication No. 81-5193).

(Problem to be Solved by the Invention) When a radiation image recorded on a silver halide film such as an X-ray film is read using the film digitizer, the image signal obtained by this reading and the radiation image The problem is how to associate attached information (hereinafter referred to as "attached information"), such as subject hair, subject number, photography method, body part, date of photography, etc.

One way to solve this problem is to provide a general-purpose keyboard or a dedicated terminal for inputting the above-mentioned attached information, but in this case, it takes time and effort to enter the attached information from the above-mentioned keyboard or terminal. This results in the problem of being bothersome.

SUMMARY OF THE INVENTION In view of the above-mentioned circumstances, it is an object of the present invention to provide a radiation image reading device that is designed to easily associate image signals with attached information.

(Means for Solving the Problems) To achieve the above object, the radiation image reading device of the present invention includes an image representing the radiation image by photoelectrically reading the radiation image from a silver halide film on which the radiation image is recorded. A device characterized by comprising a film digitizer that obtains a signal, and a card image reader that reads information such as characters as image information from an ID card on which information is recorded and obtains a second image signal representing the information. It is.

(Function) Since the radiation image reading device of the present invention is equipped with the above-mentioned card image reader, attached information can be freely written on the ID card, for example, by hand, and this written attached information can be read by the above-mentioned card image reader. By doing so, image information and attached information can be easily associated with each other.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing the outline of an X-ray image reading device 10, which is an embodiment of the radiation image reading device of the present invention.

An X-ray film that has been subjected to X-ray photography using an X-ray imaging device (not shown) is set in the automatic cassette opener 2 of the X-ray image reading device 10 while being stored in a cassette 1 that stores the X-ray film. be done. When cassette 1 containing X-ray film is set in automatic cassette opener 2, cassette 1 is opened in automatic cassette opener 2, and the X-ray film is taken out from it and sent to the next stage of automatic development. Sent to machine 3. In place of this cassette automatic opener 2, an unexposed X-ray film is stocked inside the cassette 1, and after the X-ray film is taken out from the cassette 1, the unexposed X-ray film is automatically placed in the cassette 1. A film loading device may be provided for loading (see, for example, Japanese Patent Application No. 1-34153).

The X-ray film sent to the automatic developing machine 3 is developed while traveling through the automatic developing machine 3, fixed, washed with water, dried, and sent out from the automatic developing machine 3. sent. Further, a card image reader 5 is connected to this X-ray image reading device 10, and the name of the subject, for example, attached to the X-ray image photographed and recorded on the film fed from the cassette 1 into this X-ray image reading device, Subject number, area to be photographed, and method of photographing.

I with attached information such as the date of photography written by hand, etc.
The D card 5a is inserted into the card image reader 5, and the attached information written on the ID card 5a is read as image information.

In addition, within this X-ray image reading device 10, the processing date (usually the same as the photographing date) and processing serial number are automatically attached to this image signal. When this image signal is called later, this image signal is specified by this processing serial number or this processing serial number and processing date.

FIG. 2 is a schematic diagram of an example of a film digitizer.

The X-ray film 6 sent from the automatic developing machine 3 is conveyed in the direction of arrow Y within this film digitizer 4.

A lamp 7 that illuminates the X-ray film 6 in a straight line is arranged above the X-ray film 6 on the conveyance path of the X-ray film 6, and is located at a position facing the lamp 7 which holds the X-ray film 6 between the two. A line sensor 8 such as a CCD array is arranged. The X-ray film 6 is conveyed from a predetermined position in the Y direction, and when it reaches the position where it is sandwiched between the lamp 7 and the line sensor 8, the light emitted from the lamp 7 produces an X-ray image recorded on the X-ray film 6. This transmitted light is intensity-modulated and transmitted by the line sensor 8, and an analog image signal SA for one line in the X direction is obtained.
By repeating this while conveying the X-ray film 6 in the direction of arrow Y, an analog image signal SA corresponding to the entire X-ray image recorded on the X-ray film 6 is obtained. This image signal SA is amplified by an amplifier 9 and converted into a digital image signal SD by an A/D converter 11. This image signal SD includes the processing date, processing serial number, and card image reader 5 (
The image signal S9. Processing date, processing serial number,
and attached information are stored.

The image signals and the like stored on the optical disk 12 are read out using the processing date and processing serial number as key information, as described above.

FIG. 3 shows how the image signals and attached information read from the optical disc are displayed on the display screen of a CRT display device (not shown), or reproduced and recorded on a film using a laser printer (not shown) or the like. FIG. 3 is a diagram showing an example of a visible image.

An X-ray image based on the image signal S is reproduced above this visible image, and a card image reader 5 (
The attached information read in (see Figure 1) is being reproduced. This allows the observer to observe the X-ray image while referring to the attached information.

FIG. 3 is a perspective view showing the outline of an X-ray image reading device 10' which is another embodiment of the radiation image reading device of the present invention. Components corresponding to the components shown in FIG. 1 are given the same numbers as those assigned to the components in FIG. 1, and their explanations are omitted.

An imaging section 13 (excluding the X-ray source) is connected to this X-ray image reading device 10'. Unshot X-ray films are stocked in the imaging unit 13, and during imaging, they are sent one by one to the back side of the imaging surface 13a, and in this state, the X-rays that have passed through the subject are directed in the direction of arrow Z. The X-ray film is irradiated from the X-ray film through the wall of the imaging surface 13a, thereby forming an X-ray image as a latent image on the X-ray film. The photographed X-ray film is sent out from the photographing section 13 and sent directly to the automatic developing machine 3. Instead of storing the X-ray film in the cassette 1 and carrying it around in this way, it may be connected to an X-ray imaging device and the X-ray film may be automatically transported throughout the entire process from imaging to reading.

In the above embodiment, the film digitizer 4 (second
(see figure) uses a line sensor 8, so image signals sampled at a predetermined fixed sampling interval in the X direction can be obtained. When using the line sensor 8, instead of the line sensor 8, the light transmitted through the film 6 is collected in one place using a light guide, an optical fiber, etc., and the collected transmitted light is received by a photoelectric converter such as a photomultiplier. Sampling may be performed in both the X direction and the Y direction at sampling intervals depending on the size of the film. Furthermore, even when using the line sensor 8, a line sensor having an array of elements corresponding to the minimum sampling interval is used, and after obtaining the image signal, interpolation calculation is performed so that the sampling interval corresponds to the film size. You may also do the following.

Furthermore, although the above embodiment is an example of an X-ray image reading apparatus in which a film digitizer 4 is connected to an automatic cassette opener 2 and an automatic developing machine 3, the radiation image reading apparatus of the present invention can be connected to an automatic cassette opener 2 and an automatic developing machine. They do not need to be connected.

(Effects of the Invention) As described above in detail, the radiation image reading device of the present invention includes a card image reader that reads the attached information recorded in, for example, handwritten characters on an ID card and obtains a second image signal. Therefore, the trouble of inputting the attached information from a keyboard or the like can be saved, and an easy-to-use device can be realized.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the outline of an X-ray image reading device, which is an embodiment of the radiation image reading device of the present invention. FIG. 2 is a schematic configuration diagram of an example of a film digitizer. 4 is a diagram showing an example of a visible image reproduced based on an image signal and attached information. FIG. 4 is a schematic outline of an X-ray image reading device that is another embodiment of the radiation image reading device of the present invention. FIG. 1...Cassette 2...Cassette automatic opener 3...Automatic processor 4...Film digitizer 5...ID terminal 6...X-ray film 7.
...Lamp 8...Line sensor 12...
・Optical disc 13...Photographing unit 13a...Photographing surface 14...X-ray image 15...Additional information Fig. 1 Fig. 3 Fig. 4

Claims (1)

[Claims] A film digitizer that photoelectrically reads the radiographic image from a silver halide film on which the radiographic image is recorded to obtain an image signal representing the radiographic image, and a film digitizer that reads the information as image information from an ID card on which information such as characters is recorded. A radiation image reading device comprising: a card image reader that obtains a second image signal representing the information.