JP2007151742A - Information processor, its method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information processor, its method and program, which are capable of geometrically measuring a measurement position according to an operation designated by a user during diagnosis by an image displayed on a monitor. <P>SOLUTION: The image of an object to be processed is displayed on a display part. The object is drawn on the image displayed on the display part on the basis of inputted information for drawing the object inputted from an input part. A value indicating the geometric relationship between the drawn objects is calculated. The calculated value is outputted on the display part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an information processing apparatus, method, and program for drawing an object on an image.

  In recent medical fields, a system in which modalities (X-ray imaging apparatus, CT (Computed Tomography), MRI (Magnetic Resonance Imaging), etc.) and a computer are connected via a network is constructed. In this system, a medical image taken with a modality is transmitted to a computer, and the image is managed by a storage device such as an HDD (hard disk drive) of the computer. In addition, image transmission / reception is also performed between PACS (Picture Archiving & Communicating System).

  The medical image stored in the HDD of the computer is displayed on the monitor, so that the doctor can diagnose the image as if it was diagnosed with a conventional film. In addition, an image is diagnosed by changing the gradation of the medical image.

  By the way, in the medical field, for example, in orthopedics, geometric information such as body distortion is also measured. In this case, the actual measurement points are marked with a pencil or the like on the film on which the radiation image is output, and the degree of body distortion is manually measured using a measuring instrument such as a ruler.

Moreover, the technique of measuring on a screen, without outputting the digitized radiographic image to a film is disclosed (patent document 1).
JP 2000-279399 A

  However, when digitization of medical images has progressed and diagnosis is performed by displaying a digitized medical image instead of the output film on a display device such as a monitor, the diagnosis is performed using a ruler on the monitor. The method increases the burden on the doctor. In addition, this diagnostic method has a problem that it is not only difficult to measure but also lacks measurement accuracy.

  The present invention has been made to solve the above-described problem, and when a diagnosis is performed by displaying an image on a monitor, a measurement position can be geometrically measured according to an operation designated by a user. An object of the present invention is to provide an information processing apparatus, a method thereof, and a program.

In order to achieve the above object, an information processing apparatus according to the present invention comprises the following arrangement. That is,
An information processing apparatus for drawing an object on an image,
Display means for displaying an image to be processed;
An input means for inputting information for drawing the object;
Drawing means for drawing an object on an image displayed by the display means based on input information from the input means;
Calculating means for calculating a value indicating a geometric relationship between the objects drawn by the drawing means;
Output means for outputting the value calculated by the calculating means to the display means.

  Preferably, based on input information from the input means, the drawing means draws a straight line as a reference line as the object.

  Preferably, the drawing means draws two parallel lines with respect to the reference line at a specific ratio based on input information from the input means.

  Preferably, the drawing means draws a line perpendicular to the two parallel lines based on input information from the input means.

  Preferably, the calculation means calculates the perpendicular distance as a value indicating the geometric relationship.

  Preferably, the drawing means draws a circle for drawing parallel lines with respect to the reference line based on input information from the input means.

  Preferably, based on input information from the input unit, the drawing unit draws a parallel line through the center of the circle and the reference line.

Preferably, based on input information from the input means, a correction means for correcting the object drawn by the drawing means;
And changing means for changing the straight line drawn by the drawing means and the value calculated by the calculating means in accordance with the correction by the correcting means.

In order to achieve the above object, an information processing method according to the present invention comprises the following arrangement. That is,
An information processing method for drawing an object on an image,
A display step of displaying an image to be processed on the display unit;
A drawing step of drawing an object on an image displayed on the display unit based on input information for drawing the object input from the input unit;
A calculation step of calculating a value indicating a geometric relationship between the objects drawn in the drawing step;
An output step of outputting the value calculated in the calculation step to the display unit.

In order to achieve the above object, a program according to the present invention comprises the following arrangement. That is,
A program for causing a computer to execute information processing for drawing an object on an image,
A display step of displaying an image to be processed on the display unit;
A drawing step of drawing an object on an image displayed on the display unit based on input information for drawing the object input from the input unit;
A calculation step of calculating a value indicating a geometric relationship between the objects drawn in the drawing step;
An output step of outputting the value calculated in the calculation step to the display unit is executed by a computer.

  According to the present invention, there is provided an information processing apparatus capable of geometrically measuring a measurement position according to an operation designated by a user when an image is displayed on a monitor for diagnosis, and a method and a program thereof. can do.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  In each of the embodiments described below, an information processing apparatus that displays a medical image on a display device and performs geometric measurement on the displayed medical image will be described. Specifically, an information processing apparatus that performs measurement processing for geometrically measuring body distortion using an X-ray image of a pelvis imaged by an X-ray imaging apparatus will be described.

  For example, FIG. 1 is a diagram illustrating a geometric measurement example for a medical image.

  Specifically, FIG. 1 shows how body distortion is measured in a medical image of the pelvis. A reference line 11 serving as a reference for measuring body strain and parallel lines 12 and 13 parallel to the reference line 11 are drawn, and the distance between the parallel lines 12 and 13 is a value indicating body strain.

  The information processing apparatus according to the present embodiment displays such a medical image, provides a user interface that allows the user to draw the reference line 11 and the parallel lines 12 and 13 on the displayed medical image, A measurement process for measuring the distance to 12 and 13 is performed.

  FIG. 2A is a diagram illustrating a hardware configuration example of an information processing apparatus applicable to each embodiment of the present invention.

  As shown in FIG. 2A, the information processing apparatus 20 is connected to a CPU (Central Processing Unit) 22, a RAM (Random Access Memory) 23, and a ROM (Read Only Memory) 24 through a bus 21. Furthermore, a storage unit 25, an input unit 26, a display unit 27, and a NIC (network interface) 28 are connected to the bus 21.

  The CPU 22 performs data processing or calculation and controls various components connected via the bus 21. In addition, the CPU 22 reads and executes a program stored in the ROM 24 or the storage unit 25. The drawing program realizes processing for displaying the above-described medical image on the display unit 27 and processing for providing a user interface (FIG. 2B) for drawing a straight line on the displayed medical image. Furthermore, the drawing program implements various processes such as a geometric measurement process for medical images.

  In the ROM 24, for example, a startup procedure (computer program) of the CPU 22 is stored in advance, and the computer program is started when the CPU 22 executes the computer program at startup.

  The storage unit 25 stores a computer program for realizing various functions and a drawing program for realizing a drawing process including a drawing tool screen (FIG. 2B) described later. The CPU 22 reads those computer programs from the storage unit 25 into the RAM 23 and executes them. That is, the RAM 23 is used as a work memory for data input / output, transmission / reception, and temporary storage for control of each component. The storage unit 25 includes an operation history storage device that stores the operation history of the user. The operation history storage device stores information related to geometric changes caused by user operations.

  The input unit 26 is, for example, an input device such as a keyboard or a mouse, and can perform various designations or inputs by being operated by a user. The display unit 27 is a display device such as a CRT (Cathode Ray Tube) or a liquid crystal display, and can display various images and information in accordance with control from the CPU 22.

  The NIC (network interface controller) 28 is an interface for connecting to the network 29. The network 29 is a public network such as the Internet or a data communication line capable of data communication such as a dedicated line. Through this network interface 28, the information processing apparatus 20 receives a radiographic image from a modality such as an X-ray imaging apparatus (not shown) or receives a desired image from a data server storing a large amount of radiographic images. Can be received.

  The storage unit 25 is a storage device such as a storage medium that can be attached to and detached from the HDD or the information processing apparatus 20. The storage unit 25 may store information about line segments such as straight lines drawn by the user on the medical image, or may store medical image data to be processed.

  Next, in the information processing apparatus 20 according to the present embodiment, an example of providing a user interface that allows the user to draw an arbitrary line on the displayed medical image, and a geometric pattern based on the line drawn by the user. An example of measurement processing for performing simple measurement will be described.

  Further, in the following description, an operation on the user interface will be described with an example of operation using a mouse as the input unit 26, but is not limited thereto. For example, when the input unit 26 is configured with a digitizer including a tablet and a pen, the user interface can be operated with the pen and the tablet. Alternatively, the user interface can be operated using a keyboard.

  In any case, any form may be used as long as the input unit 26 can input coordinate information on the user interface.

  Here, a drawing tool screen 200, which is a user interface realized by the information processing apparatus 20, will be described with reference to FIG. 2B.

  FIG. 2B is a diagram showing an example of a user interface applicable to each embodiment of the present invention.

  The user interface shown in FIG. 2B is, for example, a drawing tool screen 200 for drawing an arbitrary line on a medical image or editing a drawn line, and is displayed on the display unit 27.

  The drawing tool screen 200 includes a file menu 201 that is managed in the information processing apparatus 20 to display and select a medical image to be processed and to select a line drawing tool. In addition, a toolbar 202 having a button control group corresponding to a part or all of the functions realized by the file menu 201 is configured.

  When the user operates the file menu 201 or the toolbar 202 to select a medical image to be processed, the medical image is displayed in the display area 203. The user can draw a line on the medical image or edit the drawn line using the cursor 204 that is moved by operating the mouse. The operation at the cursor 204 includes general-purpose mouse operations such as pen-up / pen-down, drag operation, drag-and-drop operation using mouse buttons.

  When the line drawing is completed and the OK button 205 is operated, for example, a file saving screen for saving the image including the line and the medical image displayed in the display area 203 as a file is displayed. The user can specify an arbitrary file name for the image and store the image in the information processing apparatus 20 through the file storage screen.

  Further, when the cancel button 206 is operated, it is possible to cancel the current operation content (line drawing or the like) and return to the previous display state.

  Hereinafter, some embodiments will be described as operation examples using the drawing tool screen 200. In the drawings shown in the embodiments, the medical images that are originally displayed are omitted in order to more specifically explain the operation example of the display area 2043 in FIG. 2B. In other words, actually, a line segment such as a straight line shown in the drawings of each embodiment is drawn on a medical image in the display area 203.

<Embodiment 1>
As Embodiment 1, an example of providing a user interface for measuring body strain geometrically and an example of measurement processing will be described with reference to FIGS. 3A to 3I.

  First, as shown in FIG. 3A, the user sets the starting point (1) (X1, Y1) of the reference line by pointing with the mouse on the medical image. As a result, the information processing apparatus 20 draws a straight line 301 starting from the point (1) (X1, Y1) on the medical image as shown in FIG. 3B. The end point of the straight line 301 can be set at an arbitrary location by the user operating the mouse. When the user sets the end point (2) (X2, Y2) of the straight line 301 by pointing with the mouse, the information processing apparatus 20 starts the start point (1) (X1, Y1) as shown in FIG. 3C. Then, a straight line 302 having the end point (2) (X2, Y2) is drawn on the medical image.

  When the end point (2) (X2, Y2) is set, the information processing apparatus 20 sets the end point (in order to set a point for drawing the first parallel line with respect to the straight line 302, as shown in FIG. 3D. 2) The guide line 303 is displayed on the medical image as a dotted line from (X2, Y2). The user moves the mouse using the guide line 303 as a guide, and sets a point for drawing the first parallel line. Thus, by displaying the guide line 303, it can be easily understood that the user has to proceed to the next procedure.

  When the user moves the mouse using the guide line 303 as a guide and sets a point for drawing the first parallel line, the point (3) (X3, Y3) becomes the first parallel line as shown in FIG. 3E. Set as a point for drawing a line.

  When the point (3) (X3, Y3) is set, the information processing apparatus 20 sets an end point (in order to set a point for drawing a second parallel line with respect to the straight line 302, as shown in FIG. 3F. 2) The guide line 304 is displayed on the medical image as a dotted line from (X2, Y2). The user moves the mouse using the guide line 304 as a guide and sets a point for drawing the second parallel line.

  When the user moves the mouse using the guide line 304 as a guide and sets a point for drawing the second parallel line, the point (4) (X4, Y4) becomes the second parallel line as shown in FIG. 3G. Set as a point for drawing a line.

  When the point (4) (X4, Y4) for drawing the second parallel line is set, the information processing apparatus 20 displays the parallel lines 305 and 306 with respect to the straight line 302 on the medical image as shown in FIG. 3H. To display. Specifically, the parallel line 305 is a straight line parallel to the straight line 302 passing through the point (3) (X3, Y3), and the parallel line 306 is parallel to the straight line 302 passing through the point (4) (X4, Y4). Straight line. Thereby, two parallel lines with the straight line 302 as a reference line are drawn on the medical image.

  At the same time, a line 307 for measuring body strain is displayed by the information processing apparatus 20. Specifically, the straight line 307 is a straight line perpendicular to the parallel lines 305 and 306, and is a straight line for measuring the distance between the parallel line 305 and the parallel line 306. Further, the information processing apparatus 20 displays the distance measurement value 308 of the straight line 307 on the medical image. The user can determine the actual degree of distortion of the body by looking at the measurement value 308. Here, the image displayed on the screen stores information relating to its size in association with it, and a measurement value is obtained from this information and a straight line on the screen.

  Here, the measured value 308 is a value indicating a geometric relationship with respect to the drawn straight line 307 and parallel lines 305 and 306. The measurement value 308 is displayed in the vicinity of the straight line 307 that is a perpendicular line. However, a dedicated display area may be provided on the drawing tool screen 200 and displayed in the dedicated display area.

  FIG. 3I is a diagram showing a drawing method of the parallel lines 305 and 306. The information processing apparatus 20 draws the parallel lines 305 and 306 on the medical image at a predetermined ratio (1: 3: 2: 3: 1) as shown in FIG. 3I. The predetermined ratio is an example, and various ratios can be set according to the application and purpose.

  As described above, according to the first embodiment, after drawing a reference line on a medical image, a guide line for drawing two parallel lines used for diagnosis is displayed with respect to the reference line. . Thereby, the user can easily draw parallel lines.

  Further, after drawing parallel lines, the distance between the parallel lines serving as a diagnostic index is measured based on the positional relationship between the parallel lines, and the measured value is displayed. Thereby, the user can easily make a diagnosis on the display unit 27.

<Embodiment 2>
As a second embodiment, FIGS. 4A to 4G will be described with reference to FIGS. 4A to 4G with examples of providing a user interface and a measurement processing example for geometrically measuring body strain.

  4A to 4E are the same procedures as those in FIG. 3A to FIG. 3E in the first embodiment, and detailed description thereof is omitted here.

  In FIG. 4E, when the point (7) (X7, Y7) for drawing the first parallel line is set, the information processing apparatus 20 sets the parallel line 404 and the parallel line 405 as shown in FIG. 4F. A measured value 407 indicating the length of the perpendicular 406 representing the distance is displayed. And it will be in the state which waits for the point for finalizing those lines and values to be set. That is, the display position and the measurement value of the parallel line 404, the parallel line 405, the perpendicular line 406, and the measurement value 407 change in real time until a point to be determined by the mouse is set.

  FIG. 4G is a diagram illustrating a state after a fixed point is set by the mouse. Specifically, in FIG. 4F, the user moves the mouse to update the parallel lines 404, parallel lines 405, perpendicular lines 406, and measured values 407 in real time, and to confirm the lines and measured values, (8) This is a case where the user points at the position (X8, Y8).

  By drawing parallel lines, perpendicular lines, and measurement values with respect to the reference line 402 in this way, a line similar to that of the first embodiment can be drawn on the medical image, and the user can view the measurement values by The degree of body distortion can be determined.

  Also in the second embodiment, parallel lines are drawn at the same ratio as the diagram shown in FIG. 3I of the first embodiment.

  As described above, according to the second embodiment, in addition to the effects described in the first embodiment, when a point for drawing the first parallel line 404 is set, the provisionally variable second A measured value 407 indicating the length of the parallel line 405 and the perpendicular line 406 representing the distance between them is displayed. Then, by specifying a point that finally determines the second parallel line 405, a measurement indicating the length of the final second parallel line 405 intended to be used and the perpendicular line 406 representing the distance between them. The value 407 is updated. Thereby, the user can perform drawing operation of parallel lines more easily and flexibly.

<Embodiment 3>
As a third embodiment, a user interface provision example and a measurement processing example for geometrically measuring body distortion will be described with reference to FIGS. 5 to 5F.

  5A to 5C are the same procedures as those in FIGS. 3A to 3C in the first embodiment, and a description thereof will be omitted here.

  In FIG. 5C, when the straight line 502 serving as the reference line is drawn, next, the information processing apparatus 20 enters a state of setting a circle for drawing the first parallel line, as shown in FIG. 5D. The size and display position of the circle can be changed by moving the mouse. Here, for example, the position can be changed when the center of the circle is indicated, and the size can be changed when the circumference portion is indicated. In addition, an x mark is displayed in the circle so that the center of the circle can be seen, and the size and display position of the circle are determined by pointing with the mouse.

  When the mouse is pointed to determine the size and display position of the circle in FIG. 5D, the information processing apparatus 20 sets a circle for drawing a second parallel line as shown in FIG. 5E. Become. That is, as shown in FIG. 5E, the circle 503 for drawing the first parallel line and the center point (11) (X11, Y11) of the circle 503 are determined, and the second parallel line is drawn. The process moves to setting the circle.

  The size and display position of the circle for drawing the second parallel line can also be changed by moving the mouse. Similarly to the circle 503, an x mark is displayed in the circle so that the center of the circle can be seen, and the size and display position of the circle are determined by pointing with the mouse.

  Here, the purpose of drawing a circle is, for example, a method of drawing a circle at the joint part of the pelvis and foot and drawing a line parallel to a reference line passing through the center of the circle when measuring body strain. This is because it may be adopted as a diagnostic method. That is, a circle for drawing the first parallel line is drawn on the joint part of the pelvis and the right foot, and a circle for drawing the second parallel line is drawn on the joint part of the pelvis and the left foot. Become. The information processing apparatus 20 according to the present invention can also cope with such a measurement method.

  When the mouse is pointed to determine the size and display position of the circle in FIG. 5E, the information processing apparatus 20 displays a circle 504 for drawing the second parallel lines and the circle, as shown in FIG. 5F. The center point (12) (X12, Y12) of 504 is determined.

  When the circle 504 and its center point (12) are determined, the information processing apparatus 20 simultaneously displays a straight line 505 that passes through the center point (11) of the circle 503 and is parallel to the reference line 502. A straight line 505 that passes through the center point (12) of the circle 504 and is parallel to the reference line 502 is displayed. Further, a parallel line 505 and a straight line 507 perpendicular to the parallel line 506 are displayed, and a measured value 508 of the distance of the perpendicular 507 is displayed.

  By drawing parallel lines, perpendicular lines, and measurement values with respect to the reference line 502 in this way, lines similar to those in the first and second embodiments can be drawn on the medical image. By looking, it is possible to determine the degree of distortion of the body.

  Also in the third embodiment, parallel lines are drawn at the same ratio as in the diagram shown in FIG. 3I of the first embodiment.

  As described above, according to the third embodiment, in addition to the effects described in the first embodiment, it is possible to easily draw parallel lines with respect to the reference line by a drawing method suitable for the target diagnostic method. Thereby, the user can easily make a diagnosis on the display unit 27.

<Embodiment 4>
Next, a method of correcting a line with the mouse after the line is displayed according to the first to third embodiments will be described.

  In the fourth embodiment, an example of correcting the reference line will be described.

  FIG. 6A is an example of correcting the reference line 601 after the line is displayed. The user can correct the length and angle of the reference line 601 by pointing and moving the point (13) (X13, Y13) with the mouse.

  FIG. 6B is a diagram after the point (13) is pointed with the mouse in FIG. 6A and the length of the reference line 601 is corrected (the reference line 601 is shortened). Since the reference line 601 has been corrected, the point (13) moves to the point (17) (X17, Y17), and the corrected reference line 606 is displayed on the medical image by the information processing apparatus 20.

  Similar processing is performed when the length of the reference line is increased, or when the length of the reference line is corrected by moving the point (14) with the mouse. Further, when the length of the reference line is corrected, the other lines (parallel line 602, parallel line 603, and perpendicular line 604) and the measured value 605 are not changed.

  FIG. 6C is a diagram after the point (13) is pointed with the mouse in FIG. 6A and the angle of the reference line 601 is corrected (the reference line 601 is moved from the right to the left). Since the reference line 601 has been corrected, the point (13) moves to the point (18) (X18, Y18), and the corrected reference line 607 is displayed on the medical image by the information processing apparatus 20. The same processing is performed when the point (14) is moved with the mouse and the angle of the reference line is corrected.

  When the angle of the reference line is corrected, the other lines (parallel lines 602, parallel lines 603, and perpendicular lines 604) and the measurement value 605 in FIG. 6A are also changed along with the correction of the reference lines.

  Specifically, since the parallel line 602 needs to be parallel to the reference line 607 in FIG. 6C, the parallel line 602 becomes the parallel line 608 in FIG. 6C at the same time as the reference line 601 is modified. Similarly, since the parallel line 603 also needs to be parallel to the reference line 607 in FIG. 6C, the parallel line 603 becomes the parallel line 609 in FIG. 6C at the same time the reference line 601 is modified.

  When the angles of the parallel lines 602 and 603 are changed, naturally, the length and angle of the perpendicular line 604 are also changed. Specifically, since the perpendicular 604 needs to be perpendicular to the parallel lines 608 and 609 in FIG. 6C, the parallel lines 602 and 603 are changed at the same time as the parallel lines 602 and 603 are changed. It becomes the perpendicular 6010.

  When the length and angle of the perpendicular line 604 are changed, the value of the measured value 605 is naturally changed. Specifically, since the measured value 605 needs to be the value of the length of the perpendicular 6010 in FIG. 6C, the measured value 605 becomes the measured value 6011 in FIG. 6C at the same time when the perpendicular 604 is changed. .

  As described above, the length and angle of the reference line can be corrected.

  As described above, according to the fourth embodiment, in accordance with the correction operation of the reference line, the related lines and measurement values are corrected according to the correction content. Accordingly, the user can easily perform the correction operation, and can easily acquire the displayed line and the update result of the measurement value along with the correction operation.

<Embodiment 5>
Next, a method of correcting a line with the mouse after the line is displayed according to the first to third embodiments will be described.

  In the fifth embodiment, an example of correcting parallel lines will be described. In the correction operation, for example, by clicking (pointing) an object such as a line to be processed with a mouse, the object can be corrected.

  FIG. 7A is an example of correcting the parallel line 702 after the line is displayed. The user can correct the length and position of the parallel line 702 by pointing and moving the point (21) (X21, Y21) with the mouse.

  FIG. 7B is a diagram after the point (21) is pointed with the mouse in FIG. 7A and the length of the parallel line 702 is corrected (the parallel line 702 is shortened). Since the parallel line 702 has been corrected, the point (21) moves to the point (23) (X23, Y23), whereby the corrected parallel line 706 is displayed on the medical image by the information processing apparatus 20. Similar processing is performed when the length of the parallel line is increased, or when the point (22) is moved with the mouse and the length of the other parallel line 703 is corrected.

  When the length of the parallel line is corrected, the other parallel line 703 in FIG. 7A is also changed as the parallel line 702 is corrected. Specifically, as shown in FIG. 3I, the two parallel lines are displayed in a ratio of 1: 3: 2: 3: 1. Therefore, when the length of one parallel line is corrected, the length of the other parallel line is also changed so as to be displayed at a ratio of 1: 3: 2: 3: 1.

  That is, in FIG. 7A, the length of the parallel line 702 is shortened and becomes the parallel line 706 in FIG. 7B. At the same time, the length of the other parallel line 703 is also shortened to become the parallel line 707 shown in FIG. 7B.

  FIG. 7C is a diagram after the point (21) is pointed with the mouse in FIG. 7A and the position of the parallel line 702 is corrected (the position of the parallel line 702 is shifted upward). Since the parallel line 702 has been corrected, the point (21) moves to the point (25) (X25, Y25), and the corrected parallel line 708 is displayed on the medical image by the information processing apparatus 20. The same processing is performed when the point (22) is moved with the mouse and the position of the other parallel line 703 is corrected.

  When the position of the parallel line is corrected, the perpendicular line 704 and the measurement value 705 in FIG. 7A are also changed as the parallel line 702 is corrected. Specifically, since the perpendicular 704 needs to be perpendicular to the parallel lines 708 and 703 in FIG. 7C, the position of the parallel line 702 is corrected, and at the same time, the perpendicular 704 is a perpendicular line in FIG. 7C. 709.

  When the length of the perpendicular line 704 is changed, naturally, the value of the measured value 705 is also changed. Specifically, since the measured value 705 needs to be the value of the length of the perpendicular 709 in FIG. 7C, the measured value 705 becomes the measured value 7010 in FIG. 7C at the same time as the perpendicular 704 is changed. .

  As described above, the length and position of the parallel lines can be corrected.

  As described above, according to the fifth embodiment, in accordance with the correction operation of the parallel lines, the related lines and measurement values are corrected according to the correction contents. Accordingly, the user can easily perform the correction operation, and can easily acquire the displayed line and the update result of the measurement value along with the correction operation.

<Embodiment 6>
Here, an example of correcting the circle shown in the third embodiment will be described.

  FIG. 8A is an example of correcting the circle 802 after the line is displayed. The user can correct the size and position of the circle 802 by pointing and moving the circle 802 with the mouse.

  FIG. 8B is a diagram after the circle 802 is pointed with the mouse in FIG. 8A and the size of the circle 802 is corrected (the circle 802 is enlarged). Since the circle 802 has been corrected, the point (28) moves to the point (30) (X30, Y30), and the corrected circle 808 is displayed on the medical image by the information processing apparatus 20. Similar processing is performed when the size of the circle is reduced or when the size of the other circle 803 is modified.

  When the size of the circle is corrected, the parallel line 804, the perpendicular 806, and the measured value 807 in FIG. 8A are also changed along with the correction of the circle 802. Specifically, the parallel line 804 needs to be a straight line passing through the center point (28) of the circle 802 and parallel to the reference line 801. Therefore, the size of the circle 802 in FIG. 8A is corrected, and the circle 802 becomes the circle 808 shown in FIG. 8B. At the same time, the display position is changed to the parallel line 809 shown in FIG. 8B.

  When the position of the parallel line is changed, naturally, the perpendicular line 806 and the measured value 807 are also changed. Specifically, since the perpendicular 806 needs to be perpendicular to the parallel lines 809 and 805 in FIG. 8B, the position of the parallel line 804 is changed, and at the same time, the perpendicular 806 is perpendicular to FIG. 8B. 8010.

  When the length of the perpendicular line 806 is changed, naturally, the value of the measured value 807 is also changed. Specifically, since the measured value 807 needs to be the value of the length of the perpendicular 8010 in FIG. 8B, the measured value 807 becomes the measured value 8011 in FIG. 8B at the same time when the perpendicular 806 is changed. .

  FIG. 8C is a diagram after correcting the position of the circle 802 by pointing the circle 802 with the mouse in FIG. 8A (the position of the circle 802 is shifted downward). Since the position of the circle 802 has been corrected, the point (28) moves to the point (31) (X31, Y31), and the corrected circle 8012 is displayed on the medical image by the information processing apparatus 20. Similar processing is performed when the position of the other circle 803 is corrected.

  When the position of the circle is corrected, the parallel line 804, the perpendicular line 806, and the measured value 807 in FIG. 8A are also changed along with the correction of the circle 802. Specifically, the parallel line 804 needs to be a straight line passing through the center point (28) of the circle 802 and parallel to the reference line 801. Therefore, the position of the circle 802 in FIG. 8A is corrected and the circle 802 becomes the circle 8012 shown in FIG. 8C. At the same time, the display position of the parallel line 804 is changed to become the parallel line 8013 shown in FIG. 8C.

  When the position of the parallel line is changed, naturally, the perpendicular line 806 and the measured value 807 are also changed. Specifically, the perpendicular line 806 needs to be a perpendicular line intersecting the parallel lines 8013 and 805 in FIG. 8C. Therefore, at the same time when the position of the parallel line 804 is changed, the perpendicular line 806 becomes a perpendicular line 8014 in FIG. 8C.

  When the length of the perpendicular line 806 is changed, naturally, the value of the measured value 807 is also changed. Specifically, the measured value 807 needs to be a value of the length of the perpendicular 8014 in FIG. 8C. Therefore, at the same time when the perpendicular line 806 is changed, the measured value 807 becomes the measured value 8015 in FIG. 8C.

  As described above, the size and position of the circle can be corrected.

  As described above, according to the seventh embodiment, the same effect as that of the sixth embodiment can be obtained even when the parallel line is designated by a circle.

<Embodiment 7>
In the fourth to sixth embodiments, a configuration in which lines, circles, and the like are individually corrected is described as an example, but the present invention is not limited to this. For example, by pointing and moving the area surrounded by each line and drawn line with the mouse, the display position can be changed as it is drawn without changing the positional relationship of the reference line, parallel line, perpendicular line, and measurement value. It is also possible to change.

  That is, all the lines and measurement values are grouped, and the display position can be corrected without changing the positional relationship between them.

  Finally, a basic processing flow for executing the processing of each of the embodiments will be described with reference to FIG.

  FIG. 9 is a flowchart showing basic image processing for realizing each embodiment of the present invention.

  This process is realized by the information processing apparatus 20 executing a drawing program.

  In step S101, the drawing tool is activated based on the user's operation, and the drawing tool screen 200 is displayed on the display unit 27.

  In step S102, based on the user's operation, the starting point of the reference line is input to the display area 203 of the drawing tool screen 200, and the starting point is displayed. In step S103, the end point of the reference line is input to the display area 203 of the drawing tool screen 200 based on the user's operation, and the end point is displayed. Thereafter, a reference line is drawn in the display area 203 of the drawing tool screen 200 based on the input start point and end point.

  In step S104, points for drawing the first parallel line and the second parallel line are input based on the user's operation, and the display area 203 of the drawing tool screen 200 is input based on each input point. Draw first and second parallel lines.

  In step S105, the reference line and the first and second parallel lines are determined. This confirmation may be confirmed, for example, when a predetermined time has elapsed after the drawing of the second parallel line and no user operation. Alternatively, a control such as a confirmation button may be configured and confirmed when an operation is performed on the control.

  In step S106, after determining the reference line and the first and second parallel lines, based on the first and second parallel lines, a perpendicular line connecting the two is drawn in the display area 203 of the drawing tool screen 200; The distance is calculated as a measured value. Thereafter, the calculated perpendicular line is drawn in the display area 203 of the drawing tool screen 200.

  With the above processing, the reference line, the first and second parallel lines, the perpendicular line connecting the two, and the measured value thereof are displayed in the display area 203 of the drawing tool screen 200. On the other hand, since there is a possibility that a correction operation may occur for these drawn objects, for example, the display state of the display area 203 of the drawing tool screen 200 is maintained unless the OK button 205 is operated.

  In this state, the event of the correction operation is monitored, and when the event of the correction operation occurs, the processing described in the above-described embodiments 4 to 7 is executed according to the operation content.

  In each of the above embodiments, the case where lines, circles, measurement values (character images), etc. are displayed as objects to be drawn in the display area 203 of the drawing tool screen 200 has been described as an example. However, the present invention is not limited to this. Not. For example, any object that can be drawn in the display area 203 such as a rectangle, a polygon, a free curve, a text box, or a natural image can be drawn in the display area 203 as necessary.

  As described above, according to the present invention, the measurement operation for the image is performed on the displayed image by calculating the value indicating the geometric relationship between the two straight lines drawn on the image. Can do. Further, by referring to the calculated value, it is possible to easily grasp the degree of distortion of the body, and it is possible to make a diagnosis more speedily and efficiently than the work that has been measured on the conventional film.

  Although the embodiment has been described in detail above, the present invention can take an embodiment as a system, apparatus, method, program, storage medium, or the like. Specifically, the present invention may be applied to a system composed of a plurality of devices, or may be applied to an apparatus composed of a single device.

  In the present invention, a software program (in the embodiment, a program corresponding to the flowchart shown in the drawing) that realizes the functions of the above-described embodiments is directly or remotely supplied to a system or apparatus. In addition, this includes a case where the system or the computer of the apparatus is also achieved by reading and executing the supplied program code.

  Accordingly, since the functions of the present invention are implemented by computer, the program code installed in the computer also implements the present invention. In other words, the present invention includes a computer program itself for realizing the functional processing of the present invention.

  In that case, as long as it has the function of a program, it may be in the form of object code, a program executed by an interpreter, script data supplied to the OS, or the like.

  Examples of the recording medium for supplying the program include a floppy (registered trademark) disk, a hard disk, and an optical disk. Further, as a recording medium, magneto-optical disk, MO, CD-ROM, CD-R, CD-RW, magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD-R), etc. is there.

  As another program supply method, a browser on a client computer is used to connect to an Internet home page. Then, the computer program itself of the present invention or a compressed file including an automatic installation function can be downloaded from a homepage of the connection destination to a recording medium such as a hard disk. It can also be realized by dividing the program code constituting the program of the present invention into a plurality of files and downloading each file from a different homepage. That is, a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer is also included in the present invention.

  In addition, the program of the present invention is encrypted, stored in a storage medium such as a CD-ROM, distributed to users, and key information for decryption is downloaded from a homepage via the Internet to users who have cleared predetermined conditions. Let It is also possible to execute the encrypted program by using the key information and install the program on a computer.

  Further, the functions of the above-described embodiments are realized by the computer executing the read program. Further, based on the instructions of the program, an OS or the like running on the computer performs part or all of the actual processing, and the functions of the above-described embodiments can be realized by the processing.

  Further, the program read from the recording medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. Thereafter, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instructions of the program, and the functions of the above-described embodiments are realized by the processing.

It is a figure for demonstrating the example of a geometric measurement with respect to a medical image example and a medical image. It is a figure which shows the hardware structural example of the information processing apparatus applicable to each embodiment of this invention. It is a figure which shows an example of the user interface applicable to each embodiment of this invention. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 1 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 1 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 1 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 1 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 1 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 1 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 1 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 1 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 1 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 2 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 2 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 2 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 2 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 2 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 2 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 2 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 3 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 3 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 3 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 3 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 3 of this invention geometrically. It is a figure for demonstrating the user interface and measurement process for measuring the distortion of the body of Embodiment 3 of this invention geometrically. It is a figure for demonstrating the correction method of the reference line of Embodiment 4 of this invention. It is a figure for demonstrating the correction method of the reference line of Embodiment 4 of this invention. It is a figure for demonstrating the correction method of the reference line of Embodiment 4 of this invention. It is a figure for demonstrating the correction method of the parallel line of Embodiment 5 of this invention. It is a figure for demonstrating the correction method of the parallel line of Embodiment 5 of this invention. It is a figure for demonstrating the correction method of the parallel line of Embodiment 5 of this invention. It is a figure for demonstrating the correction method of the circle | round | yen of Embodiment 6 of this invention. It is a figure for demonstrating the correction method of the circle | round | yen of Embodiment 6 of this invention. It is a figure for demonstrating the correction method of the circle | round | yen of Embodiment 6 of this invention. It is a flowchart which shows the basic image processing for implement | achieving each embodiment of this invention.

Explanation of symbols

20 Information processing device 21 Bus 22 CPU
23 RAM
24 ROM
25 Storage Unit 26 Input Unit 27 Display Unit 28 NIC
29 Network

Claims (10)

An information processing apparatus for drawing an object on an image,
Display means for displaying an image to be processed;
An input means for inputting information for drawing the object;
Drawing means for drawing an object on an image displayed by the display means based on input information from the input means;
Calculating means for calculating a value indicating a geometric relationship between the objects drawn by the drawing means;
An information processing apparatus comprising: output means for outputting the value calculated by the calculating means to the display means. The information processing apparatus according to claim 1, wherein the drawing unit draws a straight line as a reference line as the object based on input information from the input unit. The information processing apparatus according to claim 2, wherein the drawing unit draws two parallel lines with respect to the reference line at a specific ratio based on input information from the input unit. The information processing apparatus according to claim 3, wherein the drawing unit draws a line perpendicular to the two parallel lines based on input information from the input unit. The information processing apparatus according to claim 4, wherein the calculation unit calculates the distance of the perpendicular as a value indicating the geometric relationship. The information processing apparatus according to claim 2, wherein the drawing unit draws a circle for drawing a parallel line with respect to the reference line based on input information from the input unit. The information processing apparatus according to claim 6, wherein the drawing unit draws a parallel line through the center of the circle and the reference line based on input information from the input unit. Correction means for correcting the object drawn by the drawing means based on input information from the input means;
The information processing apparatus according to claim 1, further comprising: a changing unit that changes a straight line drawn by the drawing unit and a value calculated by the calculating unit in accordance with correction by the correcting unit. An information processing method for drawing an object on an image,
A display step of displaying an image to be processed on the display unit;
A drawing step of drawing an object on an image displayed on the display unit based on input information for drawing the object input from the input unit;
A calculation step of calculating a value indicating a geometric relationship between the objects drawn in the drawing step;
And an output step of outputting the value calculated in the calculation step to the display unit. A program for causing a computer to execute information processing for drawing an object on an image,
A display step of displaying an image to be processed on the display unit;
A drawing step of drawing an object on an image displayed on the display unit based on input information for drawing the object input from the input unit;
A calculation step of calculating a value indicating a geometric relationship between the objects drawn in the drawing step;
A program causing a computer to execute an output step of outputting the value calculated in the calculation step to the display unit.

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