JPH07160907A - Three-dimension picture display method and its device - Google Patents

Abstract

PURPOSE:To observe a display object more stereoscopically and to easily and quickly grasp a characteristic of a concerned area by repetitively displaying a 3-dimension picture in the vicinity of a visual point pointed out by the operator. CONSTITUTION:An instructed visual point 33 is obtained at a visual point entry means 32 according to an instruction of the operator. Then a visual point string decision means 34 obtains a vicinity visual point string 35 based on an instructed visual point 33 obtained by the visual point entry means 32. The vicinity visual point string is generated by preparing a table storing changes in a rotation angle and an elevating angle (or inclination angle), e.g. in advance and adding each element in the table to the instructed visual point 33. Finally, a display control means 36 generates a 3-dimension picture when viewed from each visual point on the vicinity visual point string obtained by the visual point string decision means 34 and displayed repetitively to a picture display area. When the operator changes the instructed visual point 33, a mouse cursor of the visual point entry area is moved to other position and a mouse button is clicked.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional image display method for generating a three-dimensional image viewed from a certain point of view based on original image data and displaying it on a screen, and an apparatus therefor.

[0002]

2. Description of the Related Art As a conventional three-dimensional image display device, a device described in Video Information (M) Vol. 23, No. 17 (1991), pages 969 to 972 is known. This device is a device that extracts the surface of the tissue such as the brain from the three-dimensional image data of the head or the like collected by MRI, shades it, and displays it as a stereoscopic image. By observing three-dimensional images from various viewpoints, the purpose is to grasp the shape of the tissue and the like more accurately and to utilize it for diagnosis. Separately from this, a method of generating a plurality of stereoscopic images with different viewpoints in advance and then displaying these continuously in a manner called moving image display or animation display to improve stereoscopic effect by utilizing so-called motion parallax Is also known. In addition, as another example, new medical treatment Vol.20, No.6
(1993) page 48 to page 52. This device is a device for generating and displaying a projected image by the maximum luminance projection method. As described in this document,
Moving image display is also attempted in the maximum intensity projection method.

[0003]

Of the above-mentioned conventional techniques,
In the first technique, an operator (that is, an observer) operates a pointing means such as a mouse for three-dimensional characteristics (for example, shape and positional relationship with surrounding tissues) of a region to be observed (region of interest). Then, I grasped it by observing while moving the viewpoint appropriately. Therefore, with this technology, when the operation of the mouse etc. is stopped, the displayed image becomes one still 3D image (stereoscopic image, projected image, etc.), and the stereoscopic effect becomes poor, making it difficult to directly grasp the characteristics of the region of interest. There was a problem of becoming. Further, of the above-mentioned conventional techniques, in the second technique,
A moving image is displayed by continuously displaying a plurality of three-dimensional images generated in advance. Therefore, there is a problem that the operator cannot directly change the viewpoint arbitrarily during the display, and it is extremely difficult to immediately perform the display focusing on the region of interest. The present invention has been made in view of the above circumstances, and an object of the present invention is to solve the above-described problems in the related art, to enable three-dimensional observation of a display target, and to further characterize the region of interest. It is an object to provide a three-dimensional image display method and a device therefor which can be grasped quickly and easily.

[0004]

The above-mentioned object of the present invention is a three-dimensional image display method for generating a three-dimensional image viewed from a certain viewpoint on the basis of original image data and displaying it on a display screen. A feature that three-dimensional images obtained by moving the viewpoint are sequentially displayed near the viewpoint specified by the operator.
A three-dimensional image display device that generates a three-dimensional image viewed from a certain viewpoint based on a three-dimensional image display method and original image data and displays the three-dimensional image on a display screen, and determines the viewpoint according to an operator's instruction. It has a viewpoint input means, a viewpoint sequence determination means for determining a near viewpoint sequence consisting of a plurality of continuous viewpoints in the vicinity of the determined viewpoint, and a display control means for sequentially displaying a three-dimensional image viewed from the near viewpoint sequence. Is achieved by a three-dimensional image display device.

[0005]

In the three-dimensional image display method according to the present invention,
When the operator designates a viewpoint, it is characterized in that three-dimensional images viewed while moving the viewpoint are sequentially displayed in the vicinity of the designated viewpoint to enable more stereoscopic observation. Further, in a three-dimensional image display device which generates a three-dimensional image viewed from a certain viewpoint based on the original image data and displays it on the screen, when the operator designates the viewpoint, the original image is moving according to a predetermined procedure. 3 from the viewpoint of the display target of the image data
Another feature is that three-dimensional images are displayed one after another, enabling more stereoscopic observation. In addition, in a three-dimensional image display device that generates a three-dimensional image viewed from a certain viewpoint based on the original image data and displays it on a screen, at least a viewpoint input unit that determines the viewpoint according to an instruction from an operator, and an original source. A motion information determination unit that determines a motion information sequence that indicates a procedure for moving the display target of the image data, and a three-dimensional image that is a three-dimensional image viewed from the viewpoint, and that sequentially moves the display target according to the motion information sequence. It is also characterized by having a motion display control means for displaying. Therefore, the operator can instruct a viewpoint from which the region of interest can be clearly observed, and further can observe the region of interest more three-dimensionally due to the effect of motion parallax. Therefore, the characteristics of the region of interest can be directly grasped.

[0006]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 shows an example of a display screen in a three-dimensional image display device according to an embodiment of the present invention. Here, the display screen 11 is, for example, a display surface of a two-dimensional display such as a CRT. In the following description, as shown in FIG. 2, a three-dimensional image display device that displays a three-dimensional image of an object 21 viewed from a viewpoint 24 represented by a rotation angle 22 and an elevation angle (or a depression angle) 23 will be described as an example. To do. In FIG. 1, 1
An image display area 2 is a three-dimensional image 15 viewed from a certain viewpoint.
Is an area for displaying. A viewpoint input area 13 is an area for instructing a desired viewpoint (24 in FIG. 2). In addition,
Hereinafter, this viewpoint will be referred to as a “pointing viewpoint”. A mouse cursor 14 moves on the display screen 11 following the movement of the mouse. In this embodiment, it is mainly used for inputting a viewpoint.

In the conventional display device, for example, a three-dimensional image is displayed by the following procedure. First, after moving the mouse cursor to a position in the viewpoint input area, a mouse button is clicked to input a designated viewpoint. This input is, for example, the position of the mouse cursor at the time of clicking (a0, b in the figure).
0) is made to correspond to the rotation angle and the elevation angle (or the depression angle), respectively. Next, the three-dimensional image viewed from the input designated viewpoint is displayed in the image display area. On the other hand, the three-dimensional image display device according to the present embodiment does not simply display the three-dimensional image viewed from a certain point of view in this way, but changes the viewpoint of the three-dimensional image to be displayed from the point of view of the point of view. Display while changing within an appropriate range in the vicinity of. Therefore, the operator is always in a state of observing the object while moving the viewpoint, and thus the motion parallax can be utilized to observe a three-dimensional image having a more stereoscopic effect.

FIG. 3 shows the overall construction of this embodiment. Figure 3
, 31 is three-dimensional image data, which is a display target (object)
Is the data that is the basis for three-dimensional display. In particular,
The shape and physical quantity (X-ray absorption coefficient, etc.) are stored.
Reference numeral 32 is a viewpoint input means, which is a designated viewpoint 3 in accordance with an instruction from the operator.
Determine 3. For example, as described above, one point in the viewpoint input area is designated by the mouse to determine it. Reference numeral 34 is a viewpoint sequence determining means, which determines a proximity viewpoint sequence 35 composed of a plurality of continuous viewpoints in the vicinity of the viewpoint designated by the operator. In particular,
For example, as shown in FIG. 4, the array in which the element is the viewpoint (a, b) is determined. "EOT" is a symbol indicating the end of the array.
(Hereinafter referred to as "EOT symbol"). Where a0 and b0
Is the point of view, and Δa and Δb are the maximum changes from the point of view.

Further, 36 is a display control means, which sequentially reads each viewpoint on the near viewpoint sequence, generates a three-dimensional image viewed from the read viewpoint, and displays it on the display screen. Figure 5
Is an example of a processing procedure in the display control means 36. In the image generation processing 51, a three-dimensional image viewed from the viewpoint read from the near viewpoint sequence is generated, and then displayed in the image display area on the display screen in the display processing 52. As a three-dimensional display method in the image generation processing, for example, a three-dimensional display method for obtaining a three-dimensional image with an imprint on the object surface, or a maximum brightness projection method for projecting the maximum density value on a line segment parallel to the line of sight Etc. are used. When the EOT symbol is read from the near viewpoint sequence, the three-dimensional image viewed from each viewpoint on the near viewpoint sequence is repeatedly displayed by returning to the beginning of the near coordinate sequence and reading again.

Next, the procedure for displaying a three-dimensional image according to this embodiment will be described. First, in the viewpoint input means 32, the specified viewpoint 33 is obtained according to the instruction of the operator. Next, the viewpoint sequence determination unit 34 obtains a near viewpoint sequence 35 based on the designated viewpoint 33 obtained by the viewpoint input unit 32. For example, as shown in FIG. 6, a table storing the amounts of change in the rotation angle and the elevation angle (or the depression angle) is prepared in advance, and the designated viewpoint 3
3 is generated by adding each element in the table. Finally,
The display control unit 36 generates a three-dimensional image viewed from each viewpoint on the near viewpoint sequence obtained by the viewpoint sequence determination unit 34, and repeatedly displays the three-dimensional image in the image display area. This completes the display of the three-dimensional image.

When the operator wants to change the point of view 33,
In the viewpoint input means 32, the operator operates the viewpoint input area 1
After moving the mouse cursor 14 of 3 to another position, the mouse button may be clicked. At this time, similarly to the above display procedure, the viewpoint sequence determination means 34 and the display control means 3
In step 6, processing according to the new point of view is performed, and a new 3
A three-dimensional image is obtained. As described above, in this embodiment, the three-dimensional image viewed from the viewpoint vicinity 33 designated by the operator is repeatedly displayed. Therefore, due to the effect of motion parallax, the operator can observe a more stereoscopic three-dimensional image from an arbitrary direction, and there is a remarkable effect that it is very easy to search for a region of interest and grasp detailed characteristics.

In the above-described embodiment, an example of implementation of the processing procedure shown in FIG. 5 is shown as an example of the display control means.
As another example, the processing procedure shown in FIG. 7 can be used. In FIG. 7, an image generation process 51 and a display process 52 perform the same processes as in FIG. In the processing procedure of FIG. 7, a three-dimensional image viewed from the viewpoint read from the near viewpoint sequence is generated and temporarily stored in the image memory (step 71 in the figure). After that, the generated three-dimensional image is repeatedly read from the image memory (at step 72) and displayed. In this processing procedure, the image generation processing is performed only once for each viewpoint. Therefore, when the processing time required for image generation is longer than that for display, speedup can be achieved. The display process after the image generation process is for confirming the generation result immediately, and can be omitted if necessary.

Further, in the above embodiment, when the operator wants to change the designated viewpoint, the operation is performed by moving the mouse cursor and clicking the mouse button. However, as another method, the movement of the mouse is performed by dragging the mouse. It is also possible to change the viewpoint following the above. In addition,
Dragging is an operation of moving a mouse cursor while pressing a mouse button. The operator searches the region of interest by dragging, cancels the dragging, and releases the mouse button to determine the designated viewpoint, and observe the details of the region of interest. At the time of dragging, the number of elements of the near viewpoint sequence determined by the viewpoint sequence determination means is reduced, or the processing by the viewpoint sequence determination means is passed to become the designated viewpoint itself. It is also possible to improve the response by reducing the speed and increasing the speed.

In the present embodiment, the method using a mouse has been described as an example of the viewpoint input means, but it is of course possible to realize it by using other pointing means such as a trackball, a touch panel, a pen and the like. . Furthermore, instead of using the viewpoint input area, various other methods may be used. An example thereof is, for example, Computer Graphics, Vol. 22, 4, (1988) pp. 121 to 129 (Co.
mputer Graphics, 22, 4, (1988), pp.121-129). Further, in the present embodiment, the viewpoint is expressed by the rotation angle and the elevation angle (or the depression angle), but other expression methods such as the rotation angle around the axis perpendicular to the projection plane (26 in FIG. 2) are also used. You may allow it. Alternatively, conversely, the changeable angle may be reduced for simplification.

Next, a second embodiment of the present invention will be described.
In the first embodiment, the viewpoint sequence determination means generates the near viewpoint sequence from the table prepared in advance, but in this embodiment, the operator interactively changes the generated near viewpoint sequence. FIG. 8 shows the overall configuration of this embodiment, and FIG. 9 shows an example of the viewpoint input area on the display screen. The other areas of the display screen are the same as those in the first embodiment. In FIG.
Reference numeral 81 denotes a viewpoint sequence input means, which determines a near viewpoint sequence generation method 82 for the instructed viewpoint according to the instruction of the operator. Specifically, for example, a method of selecting a desired pattern from the patterns shown in FIG. 11 can be used. In addition,
The operator's instruction is given, for example, by dragging a viewpoint changing frame described later. Other respective means and the like are the same as those in the first embodiment.

In FIG. 9, reference numeral 91 is a viewpoint sequence graph, which is a graph expressing a generated viewpoint sequence with an origin 92 as a designated viewpoint. The horizontal axis corresponds to the rotation angle, and the vertical axis corresponds to the elevation angle (or depression angle). However, the scale of each axis (correspondence between the physical coordinate value and the angle) does not necessarily have to be the same as when the viewpoint is input. For example, in the example of FIG. 9, the designated viewpoints (a0, b
The near viewpoint sequence generated for 0) is 201 → 202 → 203 → 204 → 201 → 205 → 2 on the viewpoint sequence graph.
06 → 207 → 201, and in terms of the elements of the near viewpoint sequence, (a0, b0) → (a0 + (Δa / 2), b0 + Δb) → (a0
+ Δa, b0) → (a0 + (Δa / 2), b0−Δb) → (a0,
b0) → (a0− (Δa / 2), b0 + Δb) → (a0−Δa, b
0) → (a0− (Δa / 2), b0−Δb) → (a0, b0). This viewpoint sequence graph can be created from the table used when determining the nearby viewpoint sequence by the viewpoint sequence determination means.

Reference numeral 93 is a viewpoint sequence changing frame, which is used by the operator to instruct a near viewpoint sequence generation method. For example, when the rotation angle is increased (decreased) in the viewpoint change range of the three-dimensional image that is repeatedly displayed, 94 or 9
Drag part 5 in the direction of 96 (98) or 97 (99). Similarly, increase (or decrease) the elevation angle (or depression angle).
To do so, drag part 84 or 85 in the direction of 86 (88) or 87 (89). Also, when increasing (or decreasing) both the rotation angle and the elevation angle (or depression angle),
Drag the 77 part in the direction of 78 (79). next,
A procedure for changing the near viewpoint sequence according to this embodiment will be described. First, the operator drags the viewpoint changing frame to instruct the near viewpoint sequence generation method. For example, set the end points (△ a, △ b) of the frame to (△
i, Δj).

Next, the viewpoint sequence input means determines the near viewpoint sequence generation method from the changed viewpoint change frame. For example, a table (see FIG. 10) to be used when the viewpoint sequence determination means determines the nearby viewpoint sequence is generated. Finally, in the viewpoint sequence determination means, a near viewpoint sequence is generated using the table generated by the viewpoint sequence input means, and thereafter, a three-dimensional image is generated by the same procedure as in the first embodiment, and the image display area is generated. To be repeatedly displayed. Also, the viewpoint sequence graph is changed as necessary. This completes the change of the near viewpoint sequence. As described above, in this embodiment, the operator can change the generated near-viewpoint sequence interactively. Therefore, the operator can freely control the range of the region to be observed and the stereoscopic effect obtained by the effect of motion parallax, and there is a remarkable effect that the display target can be accurately observed.

In this embodiment, when changing the near viewpoint sequence, it is possible to change the number of elements in the near viewpoint sequence, that is, the number of elements in the table generated by the viewpoint sequence input means. For example, the number of elements may be changed according to the length of the viewpoint sequence graph and the like, and the amount of change in the viewpoint during repeated display may be as constant as possible. The operator can always observe the image in which the viewpoint changes continuously, and the effect of improving the stereoscopic effect due to the motion parallax can always be obtained. Furthermore,
In consideration of the processing time in the display control means, it is possible to incorporate a logic for selecting an optimum table length in consideration of the waiting time required for one cycle of images to be continuously displayed.

Further, in this embodiment, when changing the near viewpoint sequence, as a near viewpoint sequence generation method sent from the viewpoint input means to the viewpoint sequence determination means, instead of passing the table itself, the parameters necessary for table generation ( For example, Δi,
It is also possible to pass Δj) so that the viewpoint input means can generate the near-viewpoint sequence while calculating the necessary elements of the table. Further, in the present embodiment, it is possible to change the algorithm itself for generating the near viewpoint sequence by the viewpoint sequence input means. For example, in the viewpoint sequence graph, various nearby viewpoint sequences represented in FIG. 11 may be prepared in advance so that the operator can select a desired one. Alternatively,
It is also possible to directly change the shape by operating the view column graph itself with a mouse or the like.

Next, a third embodiment of the present invention will be described in detail with reference to the drawings. In the first embodiment, two types of variables (a, b) expressing the viewpoint are changed to generate a three-dimensional image near the viewpoint, but in the present embodiment, the object is rotated within an appropriate range, This is what is observed from an arbitrary viewpoint. The overall structure of this embodiment is shown in FIG. Figure 1
In 2, the reference numeral 121 is a motion information determination means, which determines the motion information sequence 122 indicating the procedure for moving the display target.
The determined motion information sequence is, for example, an arbitrary straight line (rotation axis)
And a rotation angle sequence consisting of a plurality of continuous rotation angles. FIG. 13 is an example thereof, and a table having the z-axis and the y-axis in the coordinate system of the object as rotation axes and the rotation angle of each axis as a rotation angle sequence is determined. This motion information sequence is prepared in advance, or is determined by the operator's instruction using the same method as the viewpoint sequence input means in the second embodiment.

In the latter case, motion information about two rotation axes (for example, the z axis and the y axis in the coordinate system of the object) may be assigned to the horizontal axis and the vertical axis of the graph. Reference numeral 123 denotes a motion display control means, which sequentially reads out a motion information sequence, sequentially generates a three-dimensional image in which an object is moved according to the contents, and displays it on a display screen. The viewpoint at the time of generation is the designated viewpoint from the viewpoint input means. FIG. 14 is an example of a processing procedure in the motion display control means. In the object rotation processing 141, the object is moved according to the motion information sequence (rotation axis and rotation angle sequence).
After (rotated), the image generation processing 142 generates a three-dimensional image of the rotated object viewed from the designated viewpoint, and the display processing 143.
Then, it is displayed in the image display area on the display screen. In the object rotation processing, it is necessary to rotate the object with an arbitrary straight line as a rotation axis.

The details of the above method are described, for example, in S. Harrington, translated by Akira Koriyama, "Computer Graphics by Algorithm and Program [II]", pages 339 to 344. The details of the image generation process and the display process are the same as in the case of the first embodiment, except that a three-dimensional image viewed from the designated viewpoint is generated instead of each viewpoint on the near viewpoint sequence. Also, from the rotation angle sequence, EO
When the T symbol is read, the three-dimensional image with different movements is repeatedly displayed by returning to the beginning of the rotation angle sequence and reading again. Next, a procedure for displaying a three-dimensional image according to this embodiment will be described. First, the point-of-view input means obtains the point-of-indication according to the instruction of the operator.

Next, the motion information determining means obtains a motion information string. For example, a z-axis and a y-axis and a table as shown in FIG. 13 are obtained. Here, Δz and Δy are the maximum change amounts of the rotation angle (Δz is around the z axis and Δy is around the y axis). Finally, in the motion display control means, after moving the image according to the motion information sequence, a three-dimensional image viewed from the designated viewpoint is generated and repeatedly displayed in the image display area. Above,
The display of the three-dimensional image is completed. The change of the point of view can be performed in the same manner as in the first embodiment. As described above, in this embodiment, an object moving within an appropriate range is repeatedly displayed as a three-dimensional image viewed from the viewpoint instructed by the operator. Therefore, the operator can observe a more stereoscopic three-dimensional image from an arbitrary direction due to the effect of the motion parallax, and there is a remarkable effect that the search for the region of interest and the detailed feature grasping are very easy.

In this embodiment, as the processing procedure in the motion display control means, the object is rotated by the object rotation processing, and then the three-dimensional image from the designated viewpoint is generated by the image generation processing. It is also possible to simultaneously perform the calculation of coordinate conversion required when rotating an object and the calculation of coordinate conversion required when generating a three-dimensional image. In particular,
After calculating the product of both transformation matrices, it is applied to the original 3D image data. As a result, the number of calculations can be reduced and high-speed processing can be achieved. Further, in the present embodiment, as an example of moving the display object, rotation about an arbitrary straight line is performed, but it is also possible to use other moving methods such as movement or to combine a plurality of movements. In this case, it goes without saying that the content of the motion information sequence and the process of the motion display control means are determined according to the moving method.

Also in this embodiment, as in the case of the first embodiment, the generated three-dimensional image is once stored in the image memory and then read and displayed, the viewpoint is changed by dragging, etc. It is also possible to use the pointing means of, change the way of expressing the viewpoint, and so on.

[0027]

As described above in detail, according to the present invention, it is possible to observe a display object more three-dimensionally, and further, it is possible to quickly and easily grasp the characteristics of the region of interest. This is a remarkable effect that the device can be realized. More specifically, in the present invention, the three-dimensional image viewed from the vicinity of the viewpoint instructed by the operator is repeatedly displayed, so that the operator can obtain a more stereoscopic three-dimensional image due to the effect of motion parallax. Can be observed from any direction, and there is an effect that it becomes very easy to search for a region of interest and grasp detailed features. In addition, by allowing the operator to interactively change the generated near-viewpoint sequence, the operator can freely control the range of the region to be observed and the stereoscopic effect obtained by the effect of motion parallax, and This has the effect of enabling accurate observation. Alternatively, by repeatedly displaying a three-dimensional image of an object moving within an appropriate range from a viewpoint designated by the operator, the operator can obtain a more three-dimensional three-dimensional image due to the effect of motion parallax. You can observe the image from any direction,
This has the effect of making it very easy to search for a region of interest and to grasp detailed features.

[Brief description of drawings]

FIG. 1 is a diagram illustrating an example of a display screen according to the present invention.

FIG. 2 is a diagram illustrating an example of a positional relationship between an object and a viewpoint.

FIG. 3 is a diagram showing an outline of an overall configuration of a three-dimensional image display device according to a first embodiment of the present invention.

FIG. 4 is a diagram illustrating an example of a near viewpoint sequence.

5 is a diagram showing an example of a processing procedure in a display control means of the apparatus shown in FIG.

FIG. 6 is a diagram showing an example of a table used by a viewpoint sequence determination unit.

7 is a diagram showing another example of a processing procedure in the display control means of the device shown in FIG.

FIG. 8 is a diagram showing an outline of an overall configuration of a second embodiment.

FIG. 9 is a diagram showing an example of a viewpoint input area according to the present invention.

FIG. 10 is a diagram showing an example of a table used by a viewpoint sequence determination unit.

FIG. 11 is a diagram showing another example of a viewpoint sequence graph according to the present invention.

FIG. 12 is a diagram showing an example of the overall configuration of a third embodiment.

FIG. 13 is a diagram showing an example of a table expressing a rotation angle sequence.

FIG. 14 is a diagram showing an example of a processing procedure in a motion display control means.

[Explanation of symbols]

11 Display Screen 12 Image Display Area 13 Viewpoint Input Area 14 Mouse Cursor 15 3D Image 16 Change of Object with Movement of Viewpoint 21 Object 22 Rotation Angle 23 Elevation or Depression Angle 24 Viewpoint 25 Projection Surface 91 Viewpoint Sequence Graph 92 Viewpoint Sequence Graph Origin 93 Viewpoint change frame 94,95,84,85,77 Drag start position 96,97,98,99,86,87,88,89,7
8,79 Drag direction 201,202,203,204,205,206,2
07 Points for explaining the order of viewpoints

Claims (9)

[Claims] 1. A three-dimensional image display method for generating a three-dimensional image viewed from a certain viewpoint based on original image data and displaying the three-dimensional image on a display screen, wherein the viewpoint is near a viewpoint specified by an operator. A three-dimensional image display method characterized by sequentially displaying three-dimensional images obtained by moving the. 2. The three-dimensional image display method according to claim 1, wherein the movement of the viewpoint is in accordance with a predetermined procedure. 3. The movement of the viewpoint can be interactively changed by the operator, and when the display on the display screen is performed, a new near viewpoint sequence is generated based on a change request of the near viewpoint sequence from the operator. 3. The three-dimensional image display method according to claim 1 or 2, wherein the viewpoint is moved based on the determination. 4. A three-dimensional image display device for generating a three-dimensional image viewed from a certain viewpoint based on original image data and displaying the three-dimensional image on a display screen, which is a viewpoint input for determining a viewpoint according to an instruction from an operator. Means, a viewpoint sequence determining means for determining a near viewpoint sequence consisting of a plurality of continuous viewpoints in the vicinity of the determined viewpoint, and a display control means for sequentially displaying a three-dimensional image viewed from the near viewpoint sequence. And a three-dimensional image display device. 5. The three-dimensional image display device according to claim 4, wherein the neighboring viewpoint sequence determined by the viewpoint sequence determining means is predetermined. 6. The near viewpoint sequence determined by the viewpoint sequence determining means can be interactively changed by the operator, and when the display is performed by the display control means, a near viewpoint sequence change request from the operator is given. 6. The three-dimensional image display device according to claim 5, wherein the viewpoint sequence determining means determines a new neighboring viewpoint sequence based on the viewpoint sequence determining means. 7. A three-dimensional image display device for generating a three-dimensional image viewed from a certain viewpoint based on original image data and displaying the three-dimensional image on a display screen, wherein a viewpoint input determines a viewpoint according to an instruction from an operator. Means and a display control means for sequentially displaying a three-dimensional image of the display object of the original image data moving according to a predetermined procedure from the determined viewpoint, the three-dimensional image display device comprising: . 8. A three-dimensional image display device for generating a three-dimensional image viewed from a certain viewpoint on the basis of original image data and displaying it on a display screen, and a viewpoint input for determining the viewpoint according to an instruction from an operator. Means, a motion information determination means for determining a motion information sequence indicating a procedure for moving the display target of the original image data, and a three-dimensional image viewed from the viewpoint, and the display target is determined according to the determined motion information sequence. Display control means for sequentially displaying the moved three-dimensional image.
Dimensional image display device. 9. The motion information sequence determined by the motion information determination means can be interactively changed by an operator, and is displayed on the display screen based on a motion information sequence change request from the operator. 9. The three-dimensional image display device according to claim 8, wherein the motion information determining means determines a new motion information sequence.