JPH03126175A - Image display device - Google Patents

Abstract

PURPOSE:To obtain an image display device with superior operability by storing the coordinate information of an interested enclosure line in an interested area enclosure line storage means by corresponding to each image. CONSTITUTION:The interested area enclosure line storage means 10 provided by corresponding to each image and capable of storing the coordinate information of a picture element forming th interested area enclosure line superimposed on each image, and a write and rewrite means 8 which performs the write and rewrite of the coordinate information of the interested area enclosure line after transfer and correction on a display screen on the interested area enclosure line storage means 10 conforming to each image. The display screen of the device 1 is formed by arranging the picture element in matrix shape, and plural images are displayed on the display screen simultaneously. And the interested area enclosure line is superimposed on either those images and is displayed. Thereby, the image display device 1 with superior operability can be obtained.

Description

Detailed Description of the Invention [Objective of the Invention] (Industrial Application Field) The present invention provides an image display having a function of setting a region of interest (hereinafter referred to as rROIJ) in an image obtained by a medical diagnostic device, etc. Regarding equipment.

(Prior Art) In conventional image display devices, in order to compare pre-surgery images and post-surgery images of the same patient, multiple image display is performed in which these images are displayed on one display screen. Ta.

Display formats for multiple images include multi-frame display in which images are displayed in a matrix, and multi-window display in which images can be displayed at arbitrary positions on the display screen.

FIG. 3 shows an example of multi-frame display in this device.

A pre-surgery image P and a post-surgery image P2 are displayed on one display screen. A case will be described in which the pre-surgery and post-surgery states of organs 0□ and 0□ depicted in these images P 1 +P2 are compared.

Normally, the organs Ox and Oz displayed in these images Pi and P2
The ROI enclosure line must be set so that it fits within the range. However, the setting of the ROI enclosure line cannot be done with a trackball.
RO by operating the ball or keys from the keyboard, etc.
It takes a lot of time to set up the fence lines. Therefore, the ROI enclosing line L1 is set in either image Pi, P2 (image pt in this example), and this ROI enclosing line L1 is transferred to the other image P2, and each ROI enclosing line L + L2 is set. Statistical calculations were performed on ROI (R1) and (R2).

(Problem to be Solved by the Invention) However, since the images to be compared are taken on different days, as shown in FIG. 3, the position of the patient may deviate between the image P and the image P2.

The ROI enclosing line L1 is transferred to the image P as shown in FIG.
This was done without changing the positions X and Y with respect to 1, and the position of the ROI enclosing line could not be corrected thereafter.

Therefore, it is necessary to set the ROI enclosing line again in the image P2, which causes a problem that the operation by the operator is troublesome.

Therefore, the present invention has been made in view of the above circumstances, and
The purpose is to provide an image display device with good operability.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a means for solving the problems by displaying any one of a plurality of images simultaneously displayed on a display screen consisting of a group of pixels arranged in a matrix. In an image display device that transfers and corrects the region of interest enclosing line on the display screen based on input transcription/correction information, a region of interest enclosing line superimposed on the image is provided in correspondence with each of the images. a region-of-interest enclosing line storage means capable of storing coordinate information of pixels forming a region-of-interest enclosing line superimposed on each image; The present invention is characterized by comprising a writing/rewriting means for writing/rewriting the coordinate information in correspondence with each image to each of the region of interest enclosing line storage means.

(for production) The operation of the apparatus having the above configuration will be explained below.

The display screen of this device is formed by arranging pixels in a matrix, and a plurality of images are displayed simultaneously on this display screen. Then, a region-of-interest enclosing line is displayed superimposed on one of these images.

In order to transfer and modify the superimposed region of interest enclosing line,
When the transfer/correction information is input to this device, the writing/rewriting means writes or rewrites the coordinate information of the pixels forming the region of interest enclosing line into each region of interest enclosing line storage means.

The region of interest enclosing line storage means stores coordinate information of the region of interest enclosing line in association with each image by the writing/rewriting means.

(Example) Examples of the present invention will be described in detail below.

FIG. 1 shows a schematic block diagram of an apparatus 1 according to an embodiment of the present invention.

This device 1 includes an image memory 2 that stores a plurality of image information taken by a medical diagnostic device such as an X-ray CT device or an MHI device, and a D/A that converts the image information sent from the image memory 2 into analog. a converter 3, a CRT display 4 capable of multi-frame display or multi-window display and equipped with a display screen consisting of a group of pixels arranged in a 512x512 matrix, and an ROI to be superimposed on the image displayed on the CRT display 4. Enclosure line setting information,
That is, an input section 6 equipped with a keyboard, trackball, etc., for setting coordinate information of pixels forming the ROI enclosing line, and an input processing section 7, equipped with an A/D converter, etc., and processing input information from the input section 6. and a CPU 8 which controls each part of this device 1 and performs statistical calculations on the region (ROI) within the ROI enclosing line; and under the control of this CPU 8, transfers the ROI enclosing line between each image or an ROI controller 9 for correcting the enclosing line; and a region-of-interest enclosing line memory provided corresponding to each of the images and capable of storing coordinate information of the ROI enclosing line transferred by the ROI controller 9 in correspondence with each of the images. It has an ROI enclosing line memory 10 as a means and a D/A converter 11 for converting data sent from the ROI enclosing line memory 10 into analog.

The input unit 6 inputs, in addition to the setting information of the ROI enclosing line, transfer information such as specifying the ROI enclosing line to be transferred and specifying the transfer destination image, and enlarging the ROI enclosing line by operating the keyboard or trackball. It is also possible to perform input operations such as correction information such as reduction and two rotations, and selection of the ROI enclosing line for which statistical calculation processing is desired from among the displayed ROI enclosing lines.

The CPU 8 performs statistical calculation processing on the ROI within the selected ROI enclosing line, based on the selection information of the ROI enclosing line for which statistical calculation processing is desired, which is input to the input unit 6;
The processing results are displayed on the CRT display 4. The CPU 8 also has a function as a writing/rewriting unit that writes or rewrites the coordinate information of the ROI enclosing line in the ROI enclosing line memory 10 corresponding to each image.

The ROI controller 9 is controlled by the CPU 8 and transfers the ROI enclosing line to the designated transfer destination image based on the ROI enclosing line transfer information input to the input section 6. Moreover, this ROI controller 9
ROI controlled by the CPU 8 and input to the input section 6
The ROI enclosing line is displayed on the CRT display 4 in real time based on the enclosing line setting information and correction information, and the operator can edit the ROI enclosing line while looking at this ROI enclosing line displayed on the CRT display 4. Modification information or setting information for the next new ROI enclosing line can be input into the input section 6.

The ROI enclosing line memory 10 is capable of storing coordinate information of a plurality of ROI enclosing lines set at different positions on the same image.

The operation of the apparatus 1 having the above configuration will be explained with reference to FIG. 2 as well. The image display format will be described below using a multi-frame display format.

First, the operator operates the input unit 6 to input multiple (in this example, two)
Enter the search information for the images to be interpreted. The input processing unit 7 converts the image search information input to the input unit 6 into C
Send to PU8. Based on this search information, the CPU 8 searches for the corresponding image information from the image information stored in the image memory 2, converts it into analog data with the D/A converter 3, and outputs the image to the CRT display 4 via the mixer 5. Figure 2 (a)
Multi-frame display of the image P low P 20 is performed as shown in FIG.

Next, the operator operates the input unit 6 to input setting information for a rectangular ROI enclosing line L10 and a circular ROI enclosing line L20 into the image P10. ROI enclosure line LIO
is set so as to fall within the organ 01o, and the ROI enclosing line L20 is set outside the organ 01o.

The ROI controller 9 controls the set R based on the setting information set in the input section 6 under the control of the CPU 8.
The coordinate information of the OI enclosing lines L1° and L2° is sent to the D/A converter 1.
1, the signal is converted into analog data, passed through the mixer 5, superimposed on the image information of the image PIO, and displayed on the CRT display 4.

Further, the setting information is inputted as coordinate information by the input processing unit 7, and is stored in the ROI enclosing line memory 10 by the CPU 8.
The lower surface image Plo of the control is stored in correspondence with the lower surface image Plo.

Here, the operator is the ROI enclosing line L engineer who operates the input unit 6 and desires statistical calculation processing. +L20 selection operation is performed. The CPU 8 selects the selected ROI enclosing line L10*L
Statistical calculation processing is performed on the ROI (Rlo) and (R20) within 20, and the results are displayed on the CRT display 4.
to be displayed.

In the same manner as described above, the operator sets the ROI enclosing line L3Q to be superimposed on the image P2O as shown in FIG.
Statistical calculation processing is also performed on OI (R3o).

Next, the operator operates the input section 6 to select the RO to be transcribed.
Select the I-encircling line LIO and set the transfer information to set the image P20 as the transfer destination. The ROI controller 9 performs transcription based on the transcription information input from the input section 6 under the control of the CPU 8, and displays an ROI enclosing line L40 on the CRT display 4 as shown in FIG. 2(b). The ROI enclosing line memory 10 stores this transferred ROI under the control of the CPU 8.
The coordinate information of the I-encircling line L40 is stored in correspondence with the image P20.

If this ROI enclosing line L4G does not fit within the organ 020 as shown in FIG.
The input unit 6 is operated to input correction information that allows the ROI enclosing line L40 to be moved to a position within the organ 020. ROI
The controller 9 controls the image P20 under the control of the CPU 8.
The ROI enclosing line L40 displayed in the figure (C) indicates organ 0□. Move it to a position where it fits inside. CPU8
, the ROI enclosing line memory 10 corresponding to the image P20 is stored based on the ROI enclosing line correction information inputted to the input unit 6.
The coordinate information of the ROI enclosing line L40 is corrected.

Here, the operator operates the input unit 6 to enclose the ROI in the same manner as described above. Statistical calculation processing is performed on the ROI (R, .) within. This result is displayed on the CRT display 4. Then, the operator selects ROI (R
, , ) are compared with those of ROI (R50).

Although one embodiment has been described above, the present invention is not limited to this, and various modifications can be made without changing the gist thereof.

Although multi-frame display has been described as a display format, the purpose can be achieved similarly with multi-window display.

[Effects of the Invention] According to the present invention described in detail above, the coordinate information of the region of interest enclosing line is stored in association with each image by the region of interest enclosing line storage means, so that image display with good operability can be achieved. equipment can be provided.

[Brief explanation of the drawing]

FIG. 1 is a schematic block diagram of an apparatus according to an embodiment of the present invention, and FIG.
Figures (a) to (C) are explanatory diagrams showing an example of multi-frame display in this device, and Fig. 3 is an explanatory diagram showing an example of multi-frame display in a conventional device. 1... Image display device, 8... CPU (writing/rewriting means) 10... ROI enclosing line memory (region of interest enclosing line storage means), Llo, L2Q, L30, L40, L50...
・Region of interest enclosing line, P 10+ P 20''' image.

Claims (1)

[Claims] A region-of-interest enclosing line superimposed on one of a plurality of images simultaneously displayed on a display screen consisting of a group of pixels arranged in a matrix is drawn on the display screen based on the input transcription/correction information. Transfer the area of interest enclosing line and
In the image display device for performing correction, a region of interest enclosing line storage means provided corresponding to each of the images and capable of storing coordinate information of pixels forming a region of interest enclosing line superimposed on each of the images, and the display Writing/rewriting of the coordinate information of the region of interest enclosing line after transcription/correction performed on the screen is written/rewritten in each of the region of interest enclosing line storage means in association with each image. An image display device comprising: means.