JPH0396084A - X-ray film digitizer with digitized area automatic recognizing device - Google Patents

Abstract

PURPOSE:To shorten a time required for digitization by performing the automatic recognition of only a part where a film is set on a show-case, and performing the digitization of the part where the film is set. CONSTITUTION:When an X-ray film 2 is set on the show-case 1, the judgement of the X-ray film 2 can be judged with the naked eye by illuminating the film with a fluorescent lamp 9 on a back plane. And position sensors 3A-3D mounted at the ends of the show-case 1 in the up-and-down and right-and-left directions recognize the position of the X-ray film 2, and it is transmitted to an arm controller 4. The arm controller 4 performs digitization with a CCD sensor 10 arranged on an arm 5 as moving in the up-and-down direction when the arm arrives at the digitization start position 6 of the film 2 moving rightward and leftward to the digitization start position 6 of the X-ray film 2 based on supplied position data.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an X-ray film digitizer with a digitizing area recognition device.

[Conventional technology]

Conventionally, this type of X-ray film digitizer digitizes the entire surface of the Schaukasten at one time.

That is, as shown in FIG. 2, a moving arm 11 is provided on the Schaukasten 1, and a CCD sensor 10 is provided inside the movable arm 11 facing the Schaukasten 1. When digitizing, as the arm 11 moves laterally in FIG.
The D sensor 10 digitizes the X-ray film 2 as well. Therefore, regardless of the position of the X-ray film 2 on the Schaukasten 1, digitizing is performed along the entire surface of the Schaukasten 1.

[Problem to be solved by the invention]

The conventional X-ray film digitizer of this type mentioned above is
Since the X-ray film on the surface of Schaukasten 1 is digitized at one time, even if only a small amount of film is set on the Schaukasten, unnecessary parts are also digitized, which increases the amount of time required for digitization. The disadvantage is that it wastes both time and the amount of data after digitization.

[Means to solve the problem]

The X-ray film digitizer with automatic digitizing area recognition device of the present invention includes a Schaukasten for applying fluorescent lamp light from the rear of the X-ray film, and a CCD for sensing the light irradiated from the Schaukasten and transmitted through the X-ray film.
A sensor, an arm with a built-in CCD sensor that can move vertically and horizontally on the front of the Schaukasten, a position sensor that detects the position where the X-ray film is set, and the arm moves based on the coordinate data of the position sensor. It automatically recognizes only the part where the film is set on the Schaukasten, and digitizes and ovalizes only the part where the film is set.

〔Example〕

Next, the present invention will be explained with reference to the drawings. FIGS. 1(a) and 1(b) are a front view and a side view, respectively, showing the structure of an embodiment of the present invention.

When the X-ray film 2 is set on the Schaukasten 1, it is irradiated with a fluorescent lamp 9 on the back surface, and the X-ray film 2 can be judged with the naked eye. Position sensors 3A to 3D are attached to the top, bottom, left and right ends of Schaukasten 1.
recognizes the position of the X-ray film 2 and transmits it to the arm controller 4.

The arm controller 4 moves the arm 5 to the digitizing start position 6 of the X-ray film 2 based on the given position data.
When the arm reaches the digitizing start position 6 of the film 2, which moves left and right up to the point, the arm controller 4 moves the arm 5 up and down and performs digitization using the CCD sensor 10 installed on the arm 5. When the digitization is completed to the end position 7 of the film, the arm 5 returns to the initial arm position 8.

As described above, digitizing the X-ray film on the Schaukasten can be completed in a shorter time than with the conventional technique.

〔Effect of the invention〕

As explained above, the present invention has the advantage that by adding a device that automatically recognizes the digitized area, it is possible to save time for scanning and digitizing extra areas, and also to eliminate unnecessary data. There is.

6... Digitizing start position, 7... Digitizing end position, 8... Arm initial position, 9... Fluorescent lamp, 10... CCD sensor.

Claims (1)

[Claims] A Schaukasten for shining fluorescent light from the rear of the X-ray film, a CCD sensor for sensing the light emitted from the Schaukasten and transmitted through the X-ray film, and a CC
An arm with a built-in D sensor that can move vertically and horizontally on the front of the Schaukasten, a position sensor that detects the position where the X-ray film is set, and an arm controller that moves the arm based on the coordinate data of the position sensor. 1. An X-ray film digitizer with a digitizing area recognition device, characterized in that it automatically recognizes only the part where the film is set on a Schaukasten, and digitizes only the part where the film is set.