JPH0420332A - X-ray television device - Google Patents

Abstract

PURPOSE:To improve the diagnostic efficiency in the case of imaging plural images on the same monitor by imaging one of the images in a blanking state, shifting a non-blanking area by the monitor surface, and embedding the other in a part of a blanking area and displaying it by the monitor surface. CONSTITUTION:The device is provided with a means for imaging an image of one of image information of two television cameras 1A, 1B in a state of passing through a blanking (oblique line), and also, shifting an image of an area which is not subjected to blanking by the monitor 5 surface by switching a switch SW1. Accordingly, the image concerned can be imaged by positioning it in an arbitrary position on the monitor 5 surface. Subsequently, the other image is embedded and displayed in an area in which said image is not imaged, that is, in said area which is subjected blanking. Accordingly, the other image can be imaged in an arbitrary position and in an arbitrary size in a state of being adjacent to said image. In such a way, in the case of imaging plural images in the same monitor 5, the diagnostic efficiency can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an X-ray television device, and in particular, a method for simultaneously displaying an X-ray fluoroscopic image and another image different from the X-ray fluoroscopic image on the same monitor. The present invention relates to an X-ray television device.

[Prior art]

In an X-ray television device that displays a fluoroscopic image obtained through X-rays on a monitor, in recent years, in order to improve the efficiency of diagnosis, attempts have been made to display an image different from the fluoroscopic image on the same monitor in addition to the fluoroscopic image. It has started to be done.

As a technique for displaying different images on the same monitor at the same time, for example, a technique applied to an ultrasonic tomographic diagnostic apparatus is known (Japanese Patent Laid-Open No. 119236/1983).
(see publication).

That is, while an ultrasound tomographic image is displayed on the same monitor, at the same time a TV camera is used to image the ultrasound probe that serves as a detector for obtaining the ultrasound tomogram and its surroundings, and the captured image is The image is displayed adjacent to the ultrasound tomographic image.

In this case, the ultrasound probe and its surroundings, that is, the diagnostic location of the subject, can be associated with each other, and the tomographic image of the diagnostic location can be recognized at the same time, making the diagnosis extremely efficient.

[Problem to be solved by the invention]

However, -1] the technique described above makes the ultrasound tomographic image relatively large and the ultrasound probe and its surroundings relatively small, and their sizes and locations are not fixed. It could not be changed at all.

In this way, in the case of an image that is targeted for an ultrasound diagnostic device and is a diagnostic part of a subject as another image in the ultrasound tomogram, even the above configuration does not have much effect on diagnostic efficiency. I think that the.

However, if we consider a case where a processed image, etc., which is obtained by performing some processing on the ultrasound diagnostic image, is simultaneously displayed as the other image, the degree of interest in each of these images may change each time during the diagnosis process. I end up having to do it.

Therefore, when displaying the processed images etc. at the same time,
-1- Even if the technology of the ultrasonic diagnostic apparatus described above is applied as is, no improvement in diagnostic efficiency can be expected.

Therefore, the present invention has been made based on such circumstances, and provides an X-ray television device that can improve the efficiency of diagnosis when displaying a plurality of images on the same monitor. It's about doing.

[Means to solve the problem]

In order to achieve such an object, the present invention basically consists of an X-ray television apparatus that simultaneously displays a fluoroscopic image and another image different from the fluoroscopic image on the same monitor, and means for displaying one of the other images in a blanked state and shifting the image in the non-blanked area on the monitor screen; The apparatus is characterized by comprising means for embedding and displaying an image in a part of the blanked area on the monitor surface.

[Effect]

The X-ray television apparatus configured in this manner displays either the fluoroscopic image or the other image through blanking, and shifts the image of the non-planking area on the monitor surface. Since the monitor is equipped with a means for displaying the image, it is possible to position the image at any position on the monitor surface and display the image.

Since the other image is displayed embedded in the area where the image is not imaged, that is, the blanked area, the other image is displayed at any position and at any size adjacent to the image. be able to.

Therefore, when a plurality of images are displayed on the same monitor, the efficiency of diagnosis can be improved.

[Embodiments of the invention]

FIGS. 2 and 3 are block diagrams showing an embodiment of an X-ray television apparatus according to the present invention.

First, in Figure 2, two television cameras LA
, i1. There is B. Each of those television cameras IA,
1. Each output, which is each image information, from B is input to the switch SWI. This switch SWI is a double switch that selects whether one of the image information of each of the television cameras 1A and IB is displayed as a main image and the other as a sub image. By the switching, the output of the television camera IA is input to the switch SW2 or the A/D converter 3, and the output of the television camera IB is input to the A/D converter 3 or the switch SW.
2.

The switch SW2 serves as a mixer for mixing image information from a D/A converter 9, which will be described later, and unless it is switched, the input to the switch SW2 passes through the switch SW2 as it is, and is converted to Goo1. - is input to a circuit 4, and the output of this gate circuit 4 is input to a monitor 5.

The goo 1-circuit 4 has a plurality of voltage sources connected to the switch S.
By switching W3, a signal corresponding to a predetermined voltage value is input, and this signal determines the position of the outer frame of the image corresponding to the video signal from the switch SW2, that is, the position of the window with respect to the monitor 5. Become. At the same time, a signal corresponding to the size of the window is inputted from an R-counter 7, which will be described later, so that among the image information from the switch SWI, image information corresponding to the position and size of the window is You will be brought down to the level.

On the other hand, the video signal from the switch SWI is
/ After being digitized by the D converter 3, it is input to the W-counter 6.

This W-counter 6 is a write controller, and is configured to store image information of the video signal in the video memory 8. This video memory 8 has a capacity of, for example, 256 bits or more, and is capable of serially storing at least -frames worth of images. Information on the image stored in the video memory 8 is input to the R-counter 7.

This R-counter 7 is a readout controller, in which the pixel information of the image is 1 for the scanning line of the monitor 5.
In addition to being thinned out to 73 to 1/4, the pixels are also thinned out to 1/3 to 1/4 in the direction perpendicular to the scanning line. Note that the R-counter 7 outputs information corresponding to the window size determined by the thinning out to the gate circuit 4 described above.

Image information read out from the video memory 8 by the R-counter 7 is input to the switch SW2 via the D/A converter 9. As described above, this switch SW2 serves as a mixer for mixing the image signal from the switch SWI and the image signal from the D/A converter 9 by switching the switch SW2.

Next, FIG. 3 is a block diagram showing a so-called digital circle blanking circuit incorporated in the television camera IA or interposed between the switch SWI and the television camera IA.

In the figure, there is a synchronization signal generator 21, which outputs a standard TV synchronization signal, and this standard TV synchronization signal is first applied to the - It is now entered into Further, the standard TV synchronization signal is passed through the first shift register 24 to the other terminals of the switch 5W23.
It is designed to be input to the fixed contact of. Further, the standard TV synchronization signal is inputted via the second shift register 25 to the remaining fixed contacts of the switch 5W23. The first shift register 24 and the second shift register 25 each delay the standard TV synchronization signal by a different amount of delay, and are connected to the amplifier 2 via the arbitrarily switched switch 5W23.
6. The output of this amplifier 26 is then input to a combiner 27.

The standard TV synchronization signal from the synchronization signal generator 21 is then up-amplified via a blanking signal amplifier 29.
It is designed to be input to a down counter 28. The output from the blanking signal amplifier 29 that is input to the up/down counter 28 is what is called a blanking pulse. On the other hand, the H
There is a D pulse generator 30a, and this HD pulse generator 3
The HD pulse from 0a is sent to the up/down counter 2.
8 is input. The up/down counter 28 starts counting the HD pulses when the blanking pulse is input, and during this counting process, the up/down counter 28 switches from up count 1~ to down count I~ with the median value as the boundary. .

Further, there is a VD pulse generator 30b that is driven based on the standard TV synchronization signal from the synchronization signal generator 21, and the VD pulse from this VD pulse generator 30b and the HD pulse from the HD pulse generator 30a are provided. is counted by the address counter 31.

On the other hand, there is an O-blanking ROM 32, which stores data corresponding to a pattern as shown in FIG.

Then, the address counter 31 that counts the VD pulses and HD pulses causes the O-blanking ROM 32 to output pulses at coordinates determined in the H direction and the V direction, and the flip-flop 33 outputs pulses in the horizontal H direction for each vertical pulse. It is designed to determine the width of.

Here, FIGS. 4(a) to 4(e) show operating waveform diagrams of the circuit shown in FIG. 3, and one scanning line in the horizontal H direction in FIG. 5 (arrow A in the figure). The signal waveform of is extracted.

The figure (a) shows the reference signal from the synchronization signal generator 2.
It shows a TV synchronization signal.

FIG. 5(b) shows that when the address counter 31 counts up, the blanking level is maintained until the point determined by the data stored in the O-blanking ROM 32 (data shown in FIG. 5), and RO from the point in time to the center in the H direction determined by the up/down counter 28
It shows a signal waveform output according to M data.

FIG. 4(c) shows a circle blanking output formed subsequent to the waveform shown in FIG. 4(b).

FIG. 4(d) shows the horizontal scanning line output obtained by combining the waveforms shown in FIGS. 4(b) and 4(C) by the O-blanking ROM 32.

FIG. 4(e) shows an output waveform from a synthesizer that combines the signal from the amplifier 26 with the signal shown in FIG. 4(d), and is shifted by ΔH from the waveform in FIG. 4(d). It can be seen that

The X-ray television apparatus according to the embodiment described above displays either a fluoroscopic image or another image in a large size on the screen by switching the switch SW1, and displays the blanking image by switching the switch 5W23. Since the device is provided with means for shifting the image of the area that is not displayed on the monitor surface, it becomes possible to position the image at an arbitrary position on the monitor surface and display it.

Then, by switching the switch SW3, the other image is embedded and displayed in the area where the image is not imaged, that is, the blanked area, so that it can be displayed at any position adjacent to the image. Images can be displayed in any size.

Therefore, when a plurality of images are displayed on the same monitor 5, the efficiency of diagnosis can be improved.

Examples of each display mode that can be displayed in this way are shown in FIG.
This will be explained using (b).

In FIG. 1(a), for example, an X-ray fluoroscopic image is used as the main screen, and a monitoring television image is used as the sub-screen. An image is displayed in one area of the blanking. As is clear from the figure, the main screen has been shifted to the left in the figure, and the sub-screen is window-processed and displayed in a part of the blanking area that has become a large area due to the shift. ing.

In addition, in FIG. 1(b), the X-ray fluoroscopic image is used as a sub-screen and the monitoring television image is used as the main screen, and the main screen imaged within the blanking is displayed on the four corners of the monitor screen together with the blanking. The image is displayed on one of them.

〔Effect of the invention〕

As is clear from the above explanation, X according to the present invention
According to the line television device, it is possible to improve the efficiency of diagnosis when a plurality of images are displayed on the same monitor.

[Brief explanation of the drawing]

FIGS. 1(a) and (b) are explanatory diagrams showing an outline of an X-ray television apparatus according to the present invention, and FIG. 2 is a block diagram showing an embodiment of an X-ray television apparatus according to the present invention. FIG. 3 is a block diagram showing an embodiment of the X-ray television apparatus according to the present invention. 4(a) to e) are respective signal waveform diagrams for each part in the configuration diagram of FIG. 3, and FIG. The data stored in the blanking ROM is shown. IA, IB... Television camera, 2... Switch SW, 3... A/D converter, 4... Gate circuit, 5...
...Monitor, 6...W-counter, 7...R-counter, 8...Video memory, 9...D/A converter, 2
1... Synchronization signal generator, 24... First shift register, 25... Second shift register, 26... Amplifier, 2
7...Synthesizer, 28...Up/down counter, 3
0a.HD pulse generator, 30b..VD pulse generator, 31..Address counter, 32..○-Blanking ROM, 33..Flip-flop.

Claims (1)

[Claims] In an X-ray television device that simultaneously displays an X-ray fluoroscopic image and another image different from the X-ray fluoroscopic image on the same monitor, one of the X-ray fluoroscopic image and the other image is means for displaying the ranking in a clear state and shifting the blanked image on the monitor surface; and embedding another image other than the one image in a part of the blanked area on the monitor surface. An X-ray television apparatus comprising: means for displaying information.