JPH05344962A - Image processor - Google Patents

Abstract

PURPOSE:To provide an image processor which allows a desired ROI and the ROI No. to distinctly correspond even in the case a plurality of ROIs are displayed. CONSTITUTION:This image processor is equipped with a ROI setting part 12 for setting the ROI of the image data, measurement part 13 for carrying out the prescribed measurement in an image region set by the ROI, graphic data preparation part 16 for preparing the graphic data for ROI which displays the ROI and the ROI No. and the graphic data for result which displays the result of the measurement about the ROI, lanes 17a-17c for graphic into which the graphic data prepared for each ROI is accommodated, and a synthesizing part 19 for synthesizing the image data and the graphic data accommodated in the lanes for graphic. The graphic data preparation part 16 prepares the graphic data for ROI so that the prescribed ROI and the ROI No. are allowed to correspond on a screen.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing device,
In particular, the present invention relates to an image processing apparatus that performs a predetermined measurement for ROI set on a diagnostic image.

[0002]

2. Description of the Related Art Image processing apparatuses are used in various industrial fields for the purposes of measurement, counting, inspection, shape recognition, etc., but also in the medical field, X-ray images of a subject,
It is widely used for processing images such as tomographic images.

An image processing device in the medical field is a ROI (Reg
Some of them are designed to perform medical diagnosis using ion of interest.

The ROI is an area displayed on a monitor as an area to be subjected to predetermined image processing. For example, if the ROI is set on the X-ray image of the lung with a mouse or the like,
The pixel value in this ROI is measured, and the measurement result is displayed.

A doctor, an operator or the like can refer to the measurement result to diagnose the size, degree, etc. of the lung disease in the ROI.

[0006] Further, for example, by setting the ROI in the same manner on the image displaying the heart in real time,
It is possible to know the health condition of the heart by evaluating the degree of expansion and contraction of the heart.

FIG. 5 shows an image 2 displayed on the monitor 1.
And the ROI displayed as a rectangular area overlaid on image 2.
3 and 4 are shown.

Also, in the figure, together with ROIs 3 and 4,
ROI numbers “1” and “2” corresponding to ROIs 3 and 4 are shown.

Here, FIG. 5 (a) shows the setting status of the ROI, and FIG. 5 (b) shows the display status of the measurement result for the set ROI.

As can be seen from FIG. 5 (b), the measurement result 5 is shown in the upper right of the monitor 1, and the numerical value indicated by the reference symbol R1 is the area corresponding to the ROI number 1, that is, R1.
Numerical values which are the measurement results in OI3 and which are indicated by adding the symbol R2 are the regions corresponding to ROI number 2, that is, ROI
4 is the measurement result.

In this way, the measurement result of the set ROI is displayed on the monitor, so that the operator can make a desired diagnosis by referring to the measurement result of the ROI.

[0012]

However, when a plurality of ROIs are displayed on the screen, the correspondence between each ROI and its ROI number may become unclear. For example, in FIG. 5, ROI number 1 corresponds to ROI 3 Is it the number corresponding to R?
It is difficult to identify on the screen whether the number corresponds to OI4.

Furthermore, when a larger number of ROIs are set on the screen, the correspondence between ROIs and ROI numbers becomes very unclear, and as a result, it is impossible to know which ROI the measurement result belongs to. There was a problem that it would end up.

Further, by designating the ROI number, a desired ROI can be selected from a plurality of displayed ROIs.
It has been unclear which ROI number should be designated to select a desired ROI even when the selected ROI is selected and the ROI is measured.

Such a situation hinders medical diagnosis and eventually causes a misdiagnosis.

The present invention has been made in consideration of the above-mentioned circumstances. Even when a plurality of ROIs are displayed, a desired ROI is displayed.
It is an object of the present invention to provide an image processing device that can clearly correspond to the ROI number and the ROI number.

[0017]

In order to achieve the above object, an image processing apparatus according to the present invention has an image memory for storing image data and an ROI for setting an ROI for the image data as described in claim 1. A setting unit, a measuring unit that performs a predetermined measurement in a range set by the ROI in the image data, ROI graphic data for displaying the ROI and its ROI number, and a measurement result of the ROI. A graphic data creation unit that creates result graphic data for display, a graphic plane that stores the graphic data created for each ROI, and the image data and the graphic data stored in the graphic plane are combined. A synthesizing section for And an image display unit for displaying,
The graphic data creation unit is adapted to create the ROI graphic data so that a predetermined ROI and its ROI number can be associated with each other on the screen.

[0018]

According to the image processing apparatus of the present invention, a desired ROI
When the ROI number and the ROI number are displayed as an image, the graphic data creation unit creates the graphic data so that the ROI number is displayed in a state of being connected by an arrow.

Therefore, a desired ROI and its ROI number can be easily associated on the screen.

[0020]

Embodiments of the image processing apparatus of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a block diagram showing the image processing apparatus of this embodiment.

The image processing apparatus according to the present embodiment has an image memory 11 for storing image data and an RO for image data.
ROI setting unit 12 for setting I, and R of image data
A measuring unit 13 that performs a predetermined measurement for the range set by the OI.

The image processing apparatus according to this embodiment also includes an input unit 14 including a keyboard, a mouse, hard keys, a trackball and the like.

The input unit 14 can input a desired area as an ROI using a mouse or the like.

The ROI setting unit 12 attaches a predetermined ROI number to the input ROI and converts the ROI into coordinate data on an image.

The image processing apparatus of this embodiment creates graphic data for creating ROI graphic data for displaying the ROI and its ROI number on the screen and graphic data for the result for displaying the measurement result of the ROI. Part 16 and R created for each ROI
The graphic planes 17a, 17b, and 17c for respectively storing the graphic data for OI are provided.

The graphic planes 17a, 17b,
Reference numeral 17c is composed of a predetermined memory.

The image processing apparatus according to this embodiment includes an image plane 18 for storing image data from the image memory 11.
A combining section 19 for combining the image data stored in the image plane 18 and the graphic data stored in the graphic planes 17a, 17b, 17c, and an image display section 20 for displaying the combined data as an image. Prepare

The image display unit 20 is preferably composed of a CRT, for example.

The graphic data creating unit 16 is configured to create ROI graphic data so that a predetermined ROI and its ROI number can be associated on the screen.

That is, the graphic data creating section 16
Receives the desired ROI number input by the input unit 14, identifies the graphic plane corresponding to the ROI number, and stores the R stored in the graphic plane.
The ROI of the graphic data for OI and its ROI number can be made to correspond on the screen so that the ROI
Graphic data for I is created.

The graphic data creating unit 16 uses an arrow display mode for connecting a desired ROI and its ROI number with an arrow to make a predetermined ROI and its ROI number correspond, and blinks the desired ROI and its ROI number to blink. Display mode and desired ROI and its RO
Three display modes of a color display mode for displaying the I number in a different color from the other ROIs and the ROI number are provided.

The "arrow" includes various types of lines.

The arrow connecting the ROI and the ROI number is preferably started, for example, at the displayed ROI number and ended at the point in contact with the outline of the ROI.

Further, the image processing apparatus of the present embodiment has a ROI
The ROI storage unit 15 that stores the coordinate data on the screen of each ROI set by the setting unit 12 together with the ROI number and is capable of searching the ROI number corresponding to the input ROI coordinate using the above-mentioned coordinate data. The graphic data creating unit 16 may identify the graphic plane corresponding to the retrieved ROI number and associate the ROI of the ROI graphic data stored in the graphic plane with the ROI number on the screen. ROI graphic data is created so that it can be done.

Next, a procedure for clarifying the correspondence between a desired ROI and its ROI number using the image processing apparatus of this embodiment will be described.

FIG. 2 is a flow chart showing this procedure.

The screen before clarifying the above correspondence is the screen shown in FIG. 5 (b). ..

As described with reference to FIG. 5B, ROIs 3, 4 and ROI numbers "1" and "2" and measurement results "R1: 24.9", "R2: 8.3" are displayed on the screen. It is shown.

At this stage, it is known that the measurement results corresponding to ROI numbers 1 and 2 are "R1: 24.9" and "R2: 8.3", but ROI numbers 1 and 2 are ROIs 3 and 4. I don't know if it shows.

First, the ROI to be identified is specified.

The designation method includes inputting the ROI number and ROI
There are three types: specifying coordinates and specifying all.

When the ROI number is entered, the ROI number entered by the operator using a keyboard or the like, for example, ""
1 ”is sent to the graphic data creating unit 16.

FIG. 3A shows graphic data stored in the image plane 18 and the graphic planes 17a, 17b, 17c.

As can be seen from the figure, ROI3 and its ROI number "1" are stored in the graphic plane 17b, and ROI4 and its ROI number "2".
Are stored in the graphic plane 17c.

Here, the graphic data creating section 16
Specifies the graphic plane 17b corresponding to the received ROI number "1".

Next, the graphic data creating section 16
Is the ROI number "1" and the ROI corresponding to that number.
The ROI graphic data stored in the graphic plane 17b is created according to the display mode so that 3 can be associated on the screen.

In this display mode, a desired mode is selected from color display, blink display, and arrow display with a keyboard or the like in advance.

When the arrow display is selected as the display mode, the ROI and the ROI number are created so as to be connected by, for example, a dashed arrow.

FIG. 3B shows the graphic data creation unit 1
Each plane 17a, 17b, 17c, 1 created in 6
8 is shown.

As can be seen by comparing FIGS. 3 (a) and 3 (b), a broken line display 31 is added to the graphic plane 17b.

Next, the image data stored in the image plane 18 and the graphic planes 17a, 17
The graphic data stored in b and 17c is combined with the synthesizing unit 1
Synthesize in 9.

Finally, the combined data is displayed on the image display unit 2.
When 0, it is displayed as an image.

FIG. 4 (a) shows an image displayed on the image display section 20.

As described above, by connecting the desired ROI and the ROI number with a line, it is possible to easily know the correspondence between the ROIs even when a plurality of ROIs are displayed.

The case where the ROI to be identified is designated by inputting the ROI number has been described above, but by specifying the outline of the desired ROI from the ROI displayed on the screen with a mouse or the like, The ROI to be identified can be specified.

In this case, the ROI coordinates specified by the mouse are sent to the ROI storage unit 15 via the graphic data creating unit 16 or the ROI setting unit 12.

Next, the ROI storage unit 15 searches for the ROI to which the ROI coordinates belong.

Then, the number of the retrieved ROI is sent back to the graphic data creating section 16 to retrieve the retrieved ROI.
The graphic plane corresponding to the number is specified by the graphic data creation unit 16, and the ROI graphic and the ROI of the ROI graphic data stored in the graphic plane can be associated on the screen. Create the data.

In addition, all ROIs displayed on the screen,
Here, the ROIs 3 and 4 can be the identification targets.

In this case, the graphic planes 17b and 17c may be created so that all the ROIs and the ROI numbers are connected by broken line arrows, and the created graphic data may be combined by the combining unit 19.

FIG. 4 (b) shows a case where all the ROIs on the screen are identified.

Further, in the above description, the display mode is described as the arrow display, but it is also possible to select the color display.

In this case, the ROI graphic data stored in each graphic plane is created so as to have different colors when displayed as an image.

For example, ROI3 and ROI number "1"
Is displayed in blue, and ROI4 and ROI number "2" are displayed in red, so that the ROI and its ROI number can be easily associated with each other.

It is also possible to select a blinking display in which a desired ROI and its ROI number blink, as a display mode.

In this case, the ROI graphic data stored in the graphic plane corresponding to the desired ROI number is created so as to blink when displayed as an image.

Thus, for example, ROI3 and ROI
The number "1" flashes and ROI4 and ROI number "2"
Lights continuously, so ROI3 and its ROI number "1"
And can be easily matched.

FIG. 4 (c) shows a case where the ROI 3 and its ROI number "1" are associated with each other by blinking display.

By changing the blinking time, all ROIs on the screen and their ROI numbers can be made to correspond to each other.

As described above, according to the image processing apparatus of this embodiment, even when a plurality of ROIs are displayed on the screen, each ROI can be easily associated with its ROI number.

Therefore, when the image processing such as the ROI measurement is already completed, the measurement result and R
Correspondence with OI can be clarified on the screen, and erroneous diagnosis can be avoided.

Further, when image processing such as measurement of ROI is started, image processing can be performed by rapidly designating only a desired ROI, so that examination or diagnosis can be efficiently performed.

In the present embodiment, the case where the combined image data is displayed on the image display section has been described, but the combined image data may be photographed on a film.

In this case, for example, a photographic film similar to that shown in FIG. 4B can be obtained.

In this embodiment, the case where two ROI graphic data are overlaid has been described, but it goes without saying that they can be overlaid according to the number of graphic planes.

[0077]

As described above, the image processing apparatus of the present invention includes an image memory for storing image data, an ROI setting section for setting an ROI for the image data, and the ROI for the image data. A measuring unit for performing a predetermined measurement for the range, a graphic data for ROI for displaying the ROI and the ROI number, and graphic data for creating result graphic data for displaying the measurement result of the ROI. A creation unit, a graphic plane that stores the graphic data created for each ROI, a combining unit that combines the image data and the graphic data stored in the graphic plane, and the combined data as an image. And an image display unit for displaying the image. Since the data creating unit creates the ROI graphic data so that a predetermined ROI and its ROI number can be associated with each other on the screen, a desired ROI and its ROI number can be easily displayed on the screen. Can be adapted to.

[Brief description of drawings]

FIG. 1 is a block diagram of an image processing apparatus according to this embodiment.

FIG. 2 shows a desired ROI using the image processing apparatus of this embodiment.
6 is a flowchart showing a procedure for associating a ROI number with a ROI number.

FIG. 3A is a diagram showing a data storage state of each plane before associating a desired ROI with its ROI number; FIG.
FIG. 4 is a diagram showing a data storage state of each plane after associating a desired ROI and its ROI number.

FIG. 4 (a) is a diagram in which one set of ROIs and their ROI numbers are associated with each other by a broken line display, and (b) is all ROIs and their R
The figure which made OI number correspond by a broken line display, (c) is the figure which made one set of ROI and its ROI number correspond by blink display.

5A is a diagram showing a situation in which a ROI is set in a conventional image processing apparatus, and FIG. 5B is a diagram similarly showing a measurement result for the ROI.

[Explanation of symbols]

 3 ROI 4 ROI 11 Image Memory 12 ROI Setting Section 13 Measuring Section 14 Input Section 15 ROI Storage Section 16 Graphic Data Creating Section 17 Graphic Plane 18 Image Plane 19 Compositing Section 20 Image Display Section

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location G06F 15/70 330 Z 9071-5L

Claims (3)

[Claims] 1. An image memory for storing image data,
An ROI setting unit for setting an ROI for the image data, a measuring unit for performing a predetermined measurement in a range set by the ROI in the image data, and an ROI graphic for displaying the ROI and its ROI number. Data and a graphic data creating unit for creating result graphic data for displaying a measurement result for the ROI, a graphic plane for storing the graphic data created for each ROI, the image data and the graphic A combining unit that combines the graphic data stored in the plane,
An image display unit that displays the combined data as an image, wherein the graphic data creation unit is a predetermined R
An image processing apparatus, wherein the ROI graphic data is created so that the OI and its ROI number can be associated with each other on the screen. 2. The graphic data creation unit specifies a graphic plane corresponding to a predetermined ROI number, and associates the ROI of the ROI graphic data stored in the graphic plane with the ROI number on the screen. The graphic data for the ROI is created so that the ROI can be created.
The image processing device described. 3. An ROI storage unit capable of storing coordinate data of each set ROI on the screen together with the ROI number and searching for an ROI number corresponding to the input ROI coordinate by using the coordinate data. The graphic data creation unit specifies a graphic plane corresponding to the retrieved ROI number, and RO of the ROI graphic data stored in the graphic plane.
The image processing apparatus according to claim 1, wherein the ROI graphic data is created so that I and its ROI number can be associated with each other on the screen.