JPS58177635A - Ct image display apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a CTM image display device in a high-quality σ apparatus that uses radiation such as
This invention relates to a CT image display device that simultaneously displays an a1 image and an 8cout Ii image.

Traditional σ image of Yana! In this example, a cross-sectional image, so-called muxia1 image, as shown in FIG. It was not possible to view the images at the same time, and it was not possible to select a file containing each image and display one image at a time as needed.Such image display reduces diagnostic efficiency. The problem is that the operation is complicated and the operation is complicated.The purpose of the present invention is to eliminate these drawbacks and to
Display the image and 5cout me at the same time, and
It is an object of the present invention to provide a sigma image display device that can instantly determine whether the image corresponds to the 5cout image and improve diagnostic efficiency.

Another object of the present invention is to be able to simultaneously display either the 1st image or the 5th image on the main screen or the subscreen, and to display the subscreen arbitrarily in real time.
It is an object of the present invention to provide a σ image display device capable of performing 10FF and having excellent operability.

Still another object of the present invention is to provide a σ image display device capable of independently performing window processing and level processing (hereinafter abbreviated as W/L processing) on the main screen and sub-screen.

The present invention is a video memory that is displayed on a screen.
Main screen memory for storing a1 image data and Bcout ij for displaying it by embedding it in a part of both sides.
Consists of a sub-screen that stores i f & data,
Set the address of the sub-screen to be displayed and the address of the main screen in which this sub-screen should be embedded, and perform raster scanning based on the screen address to determine whether the sub-screen management area has been reached or not. While in the sub-screen area, a sub-screen select signal is generated and the address for the video memory is switched to the sub-screen memory address, and the sub-screen data to be read is subjected to a process determined separately from that of the main screen data. This invention is characterized in that it is designed so that the main screen image is displayed on the main screen, and the sub screen display can be turned on or off at will without destroying the entire main screen image. Explain in detail/Chapter S
The figure is a configuration diagram of main parts showing an embodiment of the cTlii image display device according to the present invention. 10 is a screen address circuit which generates an address for the main screen and a sub-screen address; 20 is an address selection circuit which receives the output of the screen address circuit 10 and generates an address for the main screen or sub-screen and also selects an address for the sub-screen. When a screen is selected, a sub-screen select signal is generated. Reference numeral 30 denotes an Eirin memory, which stores image data for the main screen as shown in FIG.
It is composed of 2. This main screen memory 31 has Ax
8 images are stored in advance in the sub-screen memory 32, which has 1 screen size. 40 is a data processing circuit that processes data sent from the camera 30 in real time. The data processing circuit 40 uses a window (ljindo).
w) processing and level processing.

The output data from the main screen memory 31 is stored in one data processing circuit 41. The output data from the sub-screen memory 32 is guided to the data processing circuit 42 which performs data processing suitable for the sub-screen data.

A switch 50 selectively selects the output of the data processing circuits 41 and 42. Normally, the output of 41 is selected, and when the sub-screen select signal is issued, the switch is energized and selects the output of the data processing circuit 42. This is to select.

A 60-digit digital-to-analog converter (hereinafter abbreviated as DA converter) converts the image data provided through the switch 50 into analog to obtain a video signal.a7
A display device equipped with a display means such as a CRT displays a video signal as a visible image. Figure 5 is a block diagram showing details of a portion consisting of a screen address circuit 10 and an address selection circuit 20. In this example, the X address of the area of the main screen into which the sub-screen is to be embedded and the area of the sub-screen to be embedded are the same address. In the figure, the screen address circuit 10 includes an X address counter 101 and a Y address counter 102 for generating addresses in the X and Y directions for the main screen memory space of the video memory shown in FIG. It consists of a y start address register 103 in which a Y-direction start address for the screen memory space is set, and an X address counter 104 for generating a Y-direction address for the sub-screen based on the value of this register 1030. Register 103Kd receives desired Y-direction start address data for sub-screen memory 32 from a microprocessor (not shown) via a data bus. On the other hand, the address selection circuit 20 has the following configuration. That is, there is a sub-screen on/off register 201 in which the on/off conditions for sub-screen display input via a keyboard (not shown) are set, and end addresses X and y in the X and Y directions of the sub-screen. Set the wing end address V register 202, the door end address register 203, and the X-direction address and Y-direction address of the main screen K multiplied by the cutout address, respectively. an address determination circuit 206 for comparing the outputs of these registers with the address output from the screen address circuit 10 and detecting the timing to cut out the sub-screen and the timing at which the end address of the sub-screen is reached. and.

The address switching output from the address judgment circuit 206 and the sub-screen on condition of the sub-screen on/off register 201 are judged, and the main screen data is read and displayed.
A condition determination circuit 211 determines whether the screen data is read and displayed and sends a predetermined control signal, and an address switching circuit 212 selects and outputs the address for the main screen or the at VX for the sub screen. It is configured.

More specifically, the atsys determination circuit 206 includes an OXX address comparison circuit 209 for detecting the timing of the cutout address, a Y address comparison circuit 210, and a ! for detecting the timing of the end address of the sub-screen. It consists of an address comparison circuit 20) and a y-atosys comparison circuit 208. The X address comparison circuit 209 generates an X extraction signal indicating the X extraction timing when the address output from the X address counter 101 exceeds the output of the X extraction address register 204. Y address comparison circuit zxo B Y
When the address read out from the address counter 102 exceeds the output of the Y extraction at 11 reset raster 205, a Y extraction signal indicating the Y extraction ting is generated.X address comparison circuit 207
(by the X address counter 101) When the output address exceeds the output of the X end address register 202, an X end signal indicating the timing of the end address in the X direction of the sub screen is generated, and the y address comparison circuit 208 The address fed out by the y address counter 104 is y
When the output of the end address register 203 is exceeded, a y end signal indicating the timing of the end address in the Y direction of the sub-screen is generated.

The address switching circuit 212 uses an X address counter 101 and a Y address counter 102 as main screen addresses.
The Y address counter 102 and the 1 address counter 104 receive the address sent out, and also serve as the address for the sub-screen.
It is configured to receive addresses issued by.

The operation of the present invention in such a configuration will be explained next with reference to FIG. A keyboard (not shown) is used to specify the size of the sub-screen, the cutting position of the main screen, and the condition (by turning on or off) as to whether or not to display the sub-screen.

The microprocessor reads these conditions and sets each register as follows.

Set to 204.205.

(2) Start address yr of the sub-screen that can be embedded in the main screen
ey start address register 103 Set K.

In addition, in this example, the start address x1 in the X direction of the sub-surface is the same as the cutting address Set in registers 202 and 203.

(4) Set the sub-screen on/off conditions in the sub-screen on/off register 201. This on/off condition can be changed independently at will, so the sub screen display on/off condition can be changed independently.
Off control is possible.

After completing the above V register settings, the X address counter 1
The 01 and Y address counters 102 operate and sequentially read out addresses. ■One address of the specified screen memory corresponds to one pixel of the CRT display screen,
The memory is addressed in accordance with the scan order of the pixels. The address switching circuit 212 selects the outputs of the X address counter 101 and the Y address counter 102 and applies them to the video message 30. The content is sequentially output in the X direction from the upper left address of the main screen message 31 of the Kueirin memory 30 as shown in FIG. 4, and the real-time data processing circuit 41 performs prescribed data processing for the main screen Window processing and level processing) are performed. The processed data is converted to an analog signal via the switch 50 and the D/M converter 660, and then converted into a video signal and sent to the CRT display 7.
0 and displayed as a visible image. When the first row of addresses in the X direction is scanned, the Y address is updated, and the second row of addresses is scanned, and display is performed in the same manner as described above. The scanning proceeds in the same manner.

During this time, the comparison circuits 207 to 210 constantly perform comparative judgments, and when addresses X and Y specify the area within the cutout 7 dress area, that is,
At the time of 2, the X cutting signal and the Y cutting signal are generated simultaneously. The condition determination circuit 211 receives these signals and the horizontal and vertical synchronizing signals LVt to generate a sub-screen select signal, and also controls the address switching circuit 212 to change the address X of the counter 101 and the address y of the counter 104.
send out. As a result, in the cutout address area, the image data of the specified part in the sub-screen memory is read out instead of the ImgI data of the main screen, and the data processing circuit 42
The processed data is sent to the DM converter 60 via the switch 50 which is switched by the select signal. The subsequent operation up to the CRT display is the same as the main screen display.Addresses X and Y are the end address X2* of the sub-Ili
When the value exceeds 3'2, the comparison circuits 207 and 208 generate an X end signal and a y end signal, and from this K, the condition judgment circuit 211 lowers the select signal and returns the address switching circuit 212 to its original state, that is, the counter 101.
When the contents of the register 201 are off, that is, the subscreen is off, the condition determination circuit 211 selects the output address Controls the reading and display of the memory. In this way, the main screen is displayed as shown in Figure 8 (b).
(Axial Q image) The sub screen (gcout image) can be replaced and displayed in any rectangular area being displayed.
In addition, if you cancel the 5cout display, please refer to Fig. (()
As shown in K, the axial image of that part is displayed without any loss.

In addition, in the embodiment, the cutting address and the start address of the sub-screen in the X direction are the same, but they can be determined independently and the sub-screen can be embedded in any position as shown in FIG. . Furthermore, the main screen memory space and the sub-screen memory space may be separate memory spaces due to the hardware configuration.Furthermore, the position and size of the sub-screen display may be fixed, and the sub-screen memory address may also be fixed, In such a case, the register group as described above becomes unnecessary, and the main screen and sub-screen can be displayed simultaneously by assigning the sub-screen select signal to the address as shown in FIG.

Also, store 8cout * in the main screen memory and MUZIML in the subscreen memory to +3cou.
It is possible to embed Mxial 1Iiii in a part of @wei and display it.

As explained above, according to the present invention, the main screen Imig
Since it is possible to embed 1mgI of m screen in any position of I and display it simultaneously, it is possible to show the slice position and angle of the image on the 1st screen of Mxia5c.
It is possible to display the 8cout information together as a reference, which can improve diagnostic efficiency.When the 8cout information is erased, the information in that part is restored to its original image without being destroyed. It is possible to improve the display and operability.

It was heavy. Axil I& and 8cout* also have the advantage of being able to separately process data in real time.

By being able to display 8 cout* simultaneously in this way, when you take a photo of this 1m surface and make a diagnosis using that photo later, you can see at a glance which slice position the cross section is at, which is very useful for diagnosis. It turns out.

[Brief explanation of drawings]

Figure 1 shows the mu xial g image, Figure 2 shows the 5cou
FIG. 3 is a diagram showing the configuration of an embodiment of the CRT display device according to the present invention, FIGS. 4 and 6 are diagrams showing the configuration of the screen 30 shown in FIG. FIG. 7 is a diagram showing another embodiment for obtaining an address signal, and FIG. 7 is a diagram showing an example of display. 1.31...Main screen memory, 2,32...Sub screen memory. 10...Address circuit, 20...Address selection circuit, 30...Eirin memory, 40...Data processing circuit,
50...Switch. 60--DM converter, 70--display circuit, 206-
...Address judgment circuit, 211...Condition judgment circuit, 2
12...Address switching circuit・-/-

Claims (1)

[Claims] (Sound) In a screen image display device that reads σ picture data stored in a video memory and displays it as a visible picture, the picture data displayed on the main screen I
i *Main screen menu for storing data
It consists of a rigid picture frame for storing m-data, and is set up with a screen address circuit that generates an address signal for dressing the main screen and sub-screen. Address of the cutout area of the screen and this cutout area Kl
an address judgment circuit for comparing the address of the area of the sub-screen to be embedded with the address signal and detecting the timing to cut out the sub-screen, and the output of the address judgment circuit and whether or not to display the sub-screen. a condition determination circuit that determines display on/off conditions to control the addressing of the memory, and creates a sub-screen select F signal; and data output from the main screen memory and sub-screen memory. a main screen data processing circuit and a subscreen data processing circuit that separately perform window level processing in real time, and an output of the two data processing circuits that is energized by the subscreen select F signal and selectively selects the output of the two data processing circuits. Equipped with a switch to output
ut ij 11 and a part of the Axim 1 image by performing company-specific data processing.
embed the file and display it simultaneously, and optionally add 5ao.
An image display device having the following features: that it is possible to turn on and off the image display;