JPH07280531A - Apparatus and method for measuring dimensions of shape of model - Google Patents

Abstract

PURPOSE:To provide an apparatus and a method for measuring dimensions of the shape of a model which enables conversion of the shape of an object into a data which may be utilized a calculator in which the shape of an objet is inputted at a high speed to edit and build a three-dimensional shape. CONSTITUTION:A part of an object 7 is removed sequentially to make sections of the object 7 with a rotary type cylinder shaped multi-blade cutter 3 for cutting. The section images of the object 7 are taken into a calculator with a CCD line sensor 4. The section images are edited to measure a three- dimensional shape of the object 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a model shape dimension measuring device for measuring a three-dimensional shape of a sample, a manufactured object, a medical appliance, an impression material for dental treatment and the like, and a model shape dimension measuring method using the model shape dimension measuring apparatus. Is.

[0002]

2. Description of the Related Art In order to manufacture a product of high quality, high function and easy to use, it is necessary to design an excellent product shape. This design is deeply related to human sensations such as ease of use and beauty of appearance, and it is necessary to determine the product shape based on the model shape created by hand to determine the design. At this time, it is necessary to input the shape of the manufactured model as data that can be used by a computer used for manufacturing a mold or the like. Also, when inspecting the shape of manufactured industrial products, it is necessary to represent this shape as data that can be used by a computer.

In the fields of medical treatment and dental treatment, it is necessary to manufacture appliances, dentures, etc. according to the body shape or tooth profile of the patient. Currently, the shape is transferred from the patient using an impression material, The shape is further transferred to produce the necessary equipment. In the conventional technique, the model surface is scanned by a three-dimensional drive mechanism equipped with a position detector, or the positions of some points on the surface are measured, and based on these, the model shape is calculated as three-dimensional data on a computer. Was reproduced.

Further, in the medical field, the desired orthosis has been manufactured by repeating the direct transfer of the shapes separately without converting the data into data usable by a computer.

[0005]

However, in the method using the conventional three-dimensional drive mechanism, the model surface has to be scanned all over, or the measurement has to be performed on a large number of points on the model surface. However, it has a problem that the measurement time is very long and that it is impossible to measure a complicated shape that cannot be detected by the position detector or a shape closed toward the inside.

Further, the repetition of physical shape transfer performed in the medical field is not only inefficient because the transfer action itself requires work by a skilled person, and the shape transfer is repeated. Therefore, the deterioration of the shape accuracy cannot be avoided. Further, in all of the above cases, in order to save the shape of the mold or the impression material once created, it is necessary to save the mold or the impression material itself. It was also a heavy burden from the physical side due to the storage space.

The present invention, in order to eliminate the above problems,
An object of the present invention is to provide a model shape dimension measuring device and a model shape dimension measuring method capable of inputting the shape of an object at high speed, editing a three-dimensional shape, and converting the data into data usable by a computer for construction. .

[0008]

In order to achieve the above-mentioned object, the present invention provides (I) a model shape dimension measuring apparatus for producing each cross section of an object by sequentially removing a part of the object. , An input device for inputting each sectional image of the object, and constructing a three-dimensional image based on each sectional image from this input device 3
A three-dimensional image construction means is provided to measure the three-dimensional shape of an object.

The device for producing each cross section of the object is a cutting device. The device for producing each cross section of the object is
It is a cutting machine. The device for producing each cross section of the object is an energy beam processing device. The input device is a scanning device. The input device is a sensor that tracks the boundary line of each cross section of the object.

The input device is an image pickup device. The input device is an optical scanning device. The three-dimensional image constructing means converts it into a three-dimensional image without storing it as a two-dimensional image. The three-dimensional image construction means stores it as a two-dimensional image.

The three-dimensional image constructing means stores it as contour line information. The object is fixed with an object fixing embedding material. The embedding material for fixing an object is an object, electrically, mechanically,
It has different properties magnetically or optically. (II) In the model shape dimension measuring method, (A) (a) object is set, (b) cross sections of the object are sequentially produced, (c) information of this cross section is taken in, (d)
The captured cross-sectional image is constructed as three-dimensional data that can be used by a computer.

(B) (a) An object is set, (b) a cutting device and a scanning device are arranged in close proximity to a drive frame, and a cross-sectional image of this cross section is taken in while making a cross section of the object. , (C) The captured cross-sectional image is constructed as three-dimensional data that can be used by a computer. (C) (a) An object is set, (b) a cross section of the object is produced by a cutting device, and (c) a contour detector
The contour shape data of the cross section is fetched, and (d) the fetched contour shape data is constructed as three-dimensional data that can be used by a computer.

(D) (a) An object is set, (b) Sections of the object are sequentially produced, and (c) Information of the section is CC
A sectional image captured by the D camera and (d) captured is constructed as three-dimensional data that can be used by a computer. (E) (a) A mold of the object is prepared using the embedding material for fixing the object, (b) A mold of the object is set, (c) A cross section of the mold of the object is sequentially prepared, ( d) Information on the cross section is taken in, and (e) the taken cross-sectional image is constructed as three-dimensional data that can be used by a computer.

(F) (a) An object is set, and (b) an energy beam processing device is used to prepare a cross section of the object,
(C) A cross-sectional image of the cross section is captured by an optical scanning device, and (d) the captured cross-sectional image is constructed as three-dimensional data that can be used by a computer. (G) (a) setting an object, (b) producing a cross section of the object with laser light, (c) scanning the cross section of the object with weakened laser light, and capturing a cross-sectional image of the cross section, (D) The captured cross-sectional image can be used by a computer 3
Build as dimensional data.

[0015]

According to the present invention, as described above, the object is sequentially removed from the end, and when a certain amount is removed, the cross-sectional shape is input by the cross-section input device which operates in conjunction with this. The input cross-sectional shape is further continuously sent to the cross-sectional shape processing device, where it is converted into data representing a three-dimensional shape. The data representing the three-dimensional shape referred to here is
It is a three-dimensional bitmap (voxel data), a three-dimensional solid model, three-dimensional contour shape data, and the like.

In this model shape dimension measuring device, the input shape data can be efficiently converted into these formats by appropriately selecting the input device. Also, these data can be mutually converted by the input shape editing device.

[0017]

Embodiments of the present invention will be described in detail below with reference to the drawings. First, the principle of the present invention will be described with reference to FIGS. 9 and 10. FIG. 9 is a block diagram of a model shape dimension measuring apparatus showing the principle of the present invention, and FIG. 10 is an explanatory diagram of a data processing system of the model shape dimension measuring apparatus.

As shown in FIG. 9, the cross-sectional information of the object 101 is captured by the cross-sectional image capturing device 102, recorded in the cross-sectional image recording device 103, and the object 10 is captured by the three-dimensional image construction device 104.
Obtain three-dimensional data of 1. In addition, the cross-sectional image capturing device 1
When the cross-section information of the object 101 is captured in 02, the cross-section manufacturing apparatus 106 operates in synchronization with this and provides the next cross-section of the object 101.

Further, as shown in FIG.
01 is set, and as shown in FIG.
Each cross-sectional shape of No. 1 was produced, and as shown in FIG.
The accumulated cross-sectional image is constructed as three-dimensional data that can be used by a computer, as shown in FIG. FIG. 1 is a perspective view of a shape input device of a model shape dimension measuring device showing a first embodiment of the present invention.

As shown in this figure, 1 is a base plate for supporting the entire apparatus, and an object 7 as a sample is placed on the base plate 1 in a state of being fixed to an object fixing embedding material 6. . Reference numeral 2 denotes a drive frame that holds a rotary cylindrical cutting multi-blade cutter 3 as a cutting device and a CCD line sensor 4 as a scanning device. By moving the drive frame 2 in the X direction and the Y direction, The surface of the object 7 is removed and the cross-sectional shape is input. The rotary cylindrical cutting multi-blade cutter 3 rotates as shown by an arrow in the figure to cut the object 7. Reference numeral 5 is a Y column for finely guiding the drive frame 2 in the Y direction.
It is possible to move up in the X direction. These X and Y directions are driven by signals from the timing controller 12 (see FIG. 2).

That is, the object removing device is provided with a cutting device using a rotary cylindrical multi-blade cutter 3 for cutting, and a feed mechanism (not shown) capable of scanning in the X and Y directions, and a CCD line as a shape input device. The sensor 4 is installed close to the rotary cylindrical cutting multi-blade cutter 3 and is held by the drive frame 2. By moving the drive frame 2 in the X and Y directions, the surface of the object 7 is removed and the cross-sectional shape is input.

The data obtained from the CCD line sensor 4 is converted into a signal converter (A / D converter) 1 as shown in FIG.
It is taken into the computer 15 via 1 and immediately converted into three-dimensional bitmap data. Or, for example, the shape data of each cross section is stored in the frame memory,
The shape data of each cross section is edited to obtain the three-dimensional data of the object 7 in the storage device 18 forming the three-dimensional data area. Reference numeral 12 is a timing control device, 16 is an input interface, and 17 is a central processing unit (CPU).

Here, the shape of the object 7 is measured by (1) preparing a new sectional shape of the object by cutting, (2) inputting the sectional shape by a CCD line sensor, and (3) three-dimensional data of the input shape by a computer. It is carried out through three steps of conversion into. In FIG. 2, the steps (2) and (3) will be described in detail. The cross-sectional shape of the object 7 is input as a one-dimensional grayscale image by the CCD line sensor 4. This image is converted into a one-dimensional digital image by the signal converter 11 and taken into the computer 15. In the computer 15, the central processing unit 17 is a position (address) that these one-dimensional digital images should occupy in a target three-dimensional image.
Calculate and store in a suitable place.

As a result, the captured image is immediately constructed as a three-dimensional bitmap. Further, the central processing unit 17 sends a command to the timing control unit 12 to control it. When all the cross sections of the object 7 are input, the three-dimensional data representing the object shape is reproduced in the storage device 18 of the computer 15 as a three-dimensional bitmap. Further, for example, the shape data of each cross section is stored in the frame memory,
The storage device 18 edits the shape data of each cross section.
Alternatively, three-dimensional data of the object 7 may be obtained.

Further, in this embodiment, the rotary cylindrical cutting multi-blade cutter 3 is used as the cutting mechanism, and the CCD line sensor 4 is used for detecting the sectional shape. While rotating in the direction of the arrow, it moves from the right to the left in the drawing (scan), and a part of the object 7 is cut to form a cross section. A CCD line sensor 4 is attached to the rear of the rotary cylindrical cutting multi-blade cutter 3, and the rotary cylindrical cutting multi-blade cutter 3 is attached.
Input the cross-sectional shape in synchronization with the movement of. Since the input information is one-dimensional information, it is converted into a two-dimensional image stored in the computer 15.

Upon completion of one scan, the rotary cylindrical cutting multi-blade cutter 3 and the CCD line sensor 4 return to their original positions on the right side, and a new scan is started. Moreover, the two-dimensional image accumulated in the computer 15 continues to be 3
Converted to dimensional data. When the above scanning operation is repeated until the object 7 is removed and disappears,
Three-dimensional data of the object 7 is formed in the computer 15.

Next, a second embodiment of the present invention will be described. FIG. 3 is a perspective view of a shape input device of a model shape dimension measuring device showing a second embodiment of the present invention. This example
An end mill for cutting is used as an object removing device, and a contour shape tracking device is used as a shape input device.

In FIG. 3, reference numeral 21 is a base plate that supports the whole, and 22 is a Z column that supports the stage 25. Further, 23 is a cutting end mill, and 24 is a cutting spindle for driving the end mill. A Y column 26 supports the Z column 22, and the Z column 22 can move on the Y column 26 in the Y direction. The stage 25 can move in the Z direction on the Z column 22, and the Y column 26 can move in the X direction on the base plate 21. As a result, stage 25
Can move in three degrees of freedom of X, Y, and Z with respect to the object 30. Reference numeral 27 is a contour shape detector rotating device, 28 is a contour shape detector, and 29 is an embedding material for fixing an object.

The measurement of the object shape is performed by the procedure as shown in FIG. First, as shown in FIG. 4A, the end mill 23 for cutting is rotated, and the end face of the object 30 is removed by scanning the end mill 23 in one plane. Next, FIG.
As shown in (b), the contour shape detector 28 is connected to the object 30.
Make it closer to the outside of the cross section. Then, the contour shape detector 2
8 captures the boundary portion of the cross-sectional shape of the object 30. The X and Z driving devices are driven while the contour shape detector 28 captures the boundary line so that the contour shape detector 28 tracks the contour shape. At this time, the trajectory tracking control device 33 uses the output signal (1) from the contour shape detector 28 so that the contour shape detector 28 is always on the boundary line of the contour shape.
The command (2) is sent to the Z position control device 35.

In the course of this contour shape tracking, based on the output (3) of the XYZ position controller 35 and the output signal (4) from the trajectory tracking controller 33 and the signal converter (A / D converter) 34, In the computer 41, the two-dimensional image of the contour shape is X
It is constructed as a contour shape in the Z plane. This data is usually represented by a number of polygonal lines as data in a form approximating a free curve. Reference numeral 42 is an input interface of the computer 41.

Further, the central processing unit 43 in the computer 41 adds Y-axis direction information to this data and adds it to the three-dimensional shape data storage portion in the storage unit 44 in the computer 41. The data at this time is expressed as data in a form in which a three-dimensional free-form surface is approximated by a three-dimensional minute plane.
According to this method, when all the cross sections of the object 30 have been measured, the shape of the object 30 is constructed as a three-dimensional curved surface (polygon data). It has the advantage that it can be processed with a very small storage capacity.

Next, a third embodiment of the present invention will be described. FIG. 5 is a perspective view of a shape input device of a model shape dimension measuring device showing a third embodiment of the present invention. In this embodiment, a rotary type single blade and a micro-feeding device for an object are adopted as an object removing mechanism, and a CCD camera is used as a shape input device.

In FIG. 5, reference numeral 51 is a rotary cutting blade for an object consisting of a single blade, 52 is a rotary shaft of this rotary cutting blade, 5
3 is an object fixed by an object fixing embedding material 55, 5
4 is a CCD camera for inputting a sectional image of the object 53,
Reference numeral 55 is an embedding material for fixing an object, 56 is a guide mechanism for accurately maintaining the position of the object 53 when the object 53 is fed by the minute feeding mechanism 58, and 57 is a push rod for pushing the object 53 upward. , 58 are minute feeding mechanisms.

The input of the shape is performed through the following processes. (A) First, the fine feed mechanism 58 and the push rod 57 driven by the fine feed mechanism 58 lifts the object 53 upward, and the rotary cutting blade 51 removes the upper surface of the object 53 by cutting. (B) The generated cross section is photographed by the CCD camera 54, and the output of the CCD camera 54 is temporarily stored in the image recording device (laser disk) 59 as a video signal.

(C) When the removal of all the objects 53 is completed, the three-dimensional image constructing device 60 sequentially takes out cross-sectional images from the image recording device 59 and converts them into three-dimensional data that can be processed by a computer. The format of the three-dimensional data at this time is three-dimensional bitmap data. Reference numeral 61 is a CRT as a display device. According to this method, since it is possible to perform cutting with the rotary cutting blade 51, it is possible to perform cutting efficiently, and it is possible to input the shape of the object 53 at high speed.

Further, the cross-sectional shape is once determined by the image recording device 59.
Since it is stored in, it also contributes to the improvement of the uptake speed. In addition, the minute feed mechanism 58 advances the push rod 57 every time the rotary cutting blade 51 makes one rotation and cuts the object 5.
Lift 3 upwards. The object 53 is fed by the guide mechanism 56 in an exactly straight line. Thus, next time when the rotary cutting blade 51 makes a cut, a new cross section is obtained in exactly the same position as the previously obtained cross section.

Further, the object 53 is embedded in the object fixing embedding material 55 for easy handling. In the cross section of the object 53 removed by the object removing device, the boundary line can be clearly discriminated because the object 53 and the object fixing embedding material 55 have different colors. Next, FIG. 6 is a perspective view of a shape input device of a model shape dimension measuring device showing a fourth embodiment of the present invention.

In this embodiment, as an object to be measured, an object mold is prepared by using an object fixing embedding material, and this mold is used as a cutting device and information in the first embodiment. Measure using a processor. That is, the object mold 71 having the cavity 72 formed by using the object fixing embedding material is set on the base plate 1,
This mold 71 is cut by the rotary cylindrical multi-blade cutter 3 for cutting, and the CCD line sensor 4 is used as a shape input device.
Is installed close to the multi-blade cutter 3 for cylindrical cutting, and is held by the drive frame 2. This drive frame 2 is in the X direction and Y
By moving in the direction, the surface of the mold 71 is removed and the cross-sectional shape is input.

The data obtained from the CCD line sensor 4 is taken into a computer 15 via a signal converter (A / D converter) 11 as shown in FIG.
Immediately converted to 3D bitmap data. Alternatively, for example, the shape data of each cross section is stored in the frame memory, the shape data of each cross section is edited, and the three-dimensional data of the mold 71 is obtained in the storage device 18 including the three-dimensional data area.

Next, FIG. 7 is a perspective view of a shape input device of a model shape dimension measuring apparatus showing a fifth embodiment of the present invention, and FIG. 8 shows a model shape dimension measuring process showing the fifth embodiment of the present invention. FIG. In this embodiment, an energy beam processing device using laser light is used as a device for producing each cross section of an object, and a scanning device using laser light is used as a shape input device.

In FIG. 7, 80 is a base plate and 8
1 is a support rectangular column, 82 is a support stand for a laser device, 83 is a laser light source, 84 is a photodetector used for image input, 8
Reference numeral 5 denotes a half mirror, which has a function of guiding the light from the laser light source 83 to the object 90 side and returning the light reflected from the object 90 to the photodetector 84. Also, 86 is X
The Y scanner is a device for changing the direction of the input light and scanning the laser light on the surface of the object 90.

Numeral 87 bends the direction of the laser beam by 90 degrees,
It is a mirror that allows light to strike the object 90 perpendicularly. Reference numeral 88 is a focusing lens capable of adjusting the focus position as the removal of the object 90 progresses and focusing the laser light. 89 is an object fixing embedding material for fixing the object 90, 91 is a laser light source control circuit, 92 is a detector amplification circuit, 93 is a scanner control circuit, 94 is a focus adjustment control device, 95 is an image capture control device, and 96 is It is a three-dimensional image construction device.

The shape is measured in the process shown in FIG. First, as shown in FIG. 8A, the output of the laser light source 83 is set to a value large enough to remove the condensed surface of the object 90 by heat. In that state, XY
By the operation of the scanner 86, the laser beam converged on the measurement surface is scanned and the surface of the object 90 is removed.

At this time, since the energy density of the laser beam is low except near the focus position where the laser beam is converged, energy beam processing is not performed, and only the object and the embedding material in a minute region near the focal plane are removed. To be done. Next, FIG.
As shown in (b), the output of the laser light is weakened so as not to remove the object 90 by heat. In that state, the laser light scans the object surface by the action of the XY scanner 86. At the same time, the light reflected from the object 90 is introduced into the photodetector 84 via the half mirror 85. The output of this photodetector 84 reflects the optical density of the object cross section, and this is detected by the detector amplifier circuit 92 in the image capturing device 95.
A secondary cross-sectional image can be formed by taking in the image.

In the three-dimensional image constructing device 96, once the 2D image is constructed based on the scan signal of the scanner and the output of the photodetector 84,
A three-dimensional image is constructed and then reconstructed into a three-dimensional image (three-dimensional bitmap). According to the method using the optical scanning mechanism, the cross-sectional shape of the object can be captured at high speed and with high accuracy, and the measurement of the model shape can be significantly improved.

Further, in the above embodiment, the cutting apparatus, the cutting apparatus or the energy beam processing apparatus is shown as the apparatus for producing each cross section of the object, but instead of this, a grinding processing apparatus, an electric discharge processing apparatus. Alternatively, a heat processing device may be used. The present invention is not limited to the above-mentioned embodiments, and various modifications can be made based on the spirit of the present invention, and these modifications are not excluded from the scope of the present invention.

[0047]

As described above in detail, according to the present invention, it is possible to greatly reduce the shape input time and to easily input a complicated shape such that the position detector cannot be used. Further, in the fields of medical treatment and dental treatment, it is necessary to manufacture appliances, dentures, etc. according to the body shape or tooth shape of the patient, but under the present circumstances, the shape is transferred from the patient using an impression material to further improve the shape. It is transcribed to produce the necessary equipment. Even in such a case, if the shape of the impression material is converted into a shape that can be directly used by a computer according to the present invention, the shape of the orthosis or the like can be precisely controlled by a numerically controlled machine tool or a shape forming apparatus by a stereolithography method. Can be reproduced by
It is possible to significantly improve the work efficiency and accuracy.

Further, in order to save the shape of the mold or the impression material once created, it is necessary to save the mold or the impression material itself, which is due to its management and economical aspects and storage space. Although it was a heavy burden from the physical aspect, these problems can be solved by storing it as computer data.

[Brief description of drawings]

FIG. 1 is a perspective view of a shape input device of a model shape dimension measurement device showing a first embodiment of the present invention.

FIG. 2 is a configuration diagram of an information processing system of a model shape dimension measuring device showing a first embodiment of the present invention.

FIG. 3 is a perspective view of a shape input device of a model shape dimension measuring device showing a second embodiment of the present invention.

FIG. 4 is a configuration diagram of an information processing system of a model shape dimension measuring device showing a second embodiment of the present invention.

FIG. 5 is a perspective view of a shape input device of a model shape dimension measurement device showing a third embodiment of the present invention.

FIG. 6 is a perspective view of a shape input device of a model shape dimension measurement device showing a fourth embodiment of the present invention.

FIG. 7 is a perspective view of a shape input device of a model shape dimension measurement device showing a fifth embodiment of the present invention.

FIG. 8 is a diagram showing a process of model shape dimension measurement showing a fifth embodiment of the present invention.

FIG. 9 is a block diagram of a model shape dimension measuring device showing the principle of the present invention.

FIG. 10 is an explanatory diagram of a data processing system of the model shape dimension measuring device of the present invention.

[Explanation of symbols]

 1,21,80 Base plate 2 Drive frame 3 Rotating cylindrical multi-blade cutter for cutting 4 CCD line sensor 5,26 Y column 6,29,55,89 Object fixing embedding material 7,30,53,90,101 Object 11,34 Signal converter (A / D converter) 12 Timing control device 15,41 Computer 16,42 Input interface 17,43 Central processing unit (CPU) 18,44 Storage device 22 Z column 23 Cutting end mill 24 Cutting Spindle 25 Stage 27 Contour shape detector rotation device 28 Contour shape detector 33 Trajectory tracking control device 35 XYZ position control device 51 Cutting blade 52 Rotating shaft of cutting blade 54 CCD camera 56 Guide mechanism 57 Push rod 58 Micro feed mechanism 59 Image recording Equipment (laser disk) 60,104 3D construction equipment 61 CRT 1-type 72 Cavity 81 Support rectangular column 82 Laser device support 83 Laser light source 84 Photodetector used for image input 85 Half mirror 86 XY scanner 87 Mirror 88 Focusing lens 91 Laser light source control circuit 92 Detector amplification circuit 93 Scanner Control circuit 94 Focus adjustment control device 95 Image capture control device 96 Three-dimensional image construction device 103 Cross-sectional image recording device 106 Cross-section preparation device

Claims (20)

[Claims] 1. An apparatus for producing each cross section of an object by sequentially removing a part of the object, (b) an input device for inputting each cross sectional image of the object, and (c) the input device. A model shape dimension measuring device equipped with a three-dimensional image constructing means for constructing a three-dimensional image on the basis of each cross-sectional image from 1. 2. The model shape dimension measuring device according to claim 1, wherein the device for producing each cross section of the object is a cutting device. 3. The model shape dimension measuring device according to claim 1, wherein the device for producing each cross section of the object is a cutting processing device. 4. The model shape dimension measuring apparatus according to claim 1, wherein the apparatus for producing each cross section of the object is an energy beam processing apparatus. 5. The input device is a scanning device.
The described model shape dimension measuring device. 6. The model shape dimension measuring device according to claim 1, wherein the input device is a sensor for tracking a boundary line of each cross section of the object. 7. The input device is an imaging device.
The described model shape dimension measuring device. 8. The model shape dimension measuring device according to claim 1, wherein the input device is an optical scanning device. 9. The model shape dimension measuring apparatus according to claim 1, wherein the three-dimensional image constructing means converts the three-dimensional image into a three-dimensional image without storing it as a two-dimensional image. 10. The model shape dimension measuring device according to claim 1, wherein the three-dimensional image constructing means stores the two-dimensional image. 11. The model shape dimension measuring apparatus according to claim 1, wherein the three-dimensional image constructing means stores the contour information as contour information. 12. The model shape dimension measuring apparatus according to claim 1, wherein the object is fixed with an embedding material for fixing an object. 13. The model shape dimension measuring apparatus according to claim 10, wherein the embedding material for fixing an object has a property that is electrically, mechanically, magnetically or optically different from an object. 14. A model shape dimension measuring method,
(A) Set an object, (b) sequentially create cross sections of the object, (c) capture information of the cross section, (d) construct the captured cross-sectional image as three-dimensional data that can be used by a computer. A model shape dimension measuring method characterized by the above. 15. A model shape dimension measuring method, comprising:
(A) An object is set, (b) a cutting device and a scanning device are arranged close to each other in a drive frame, a cross-sectional image of the cross-section is taken in while making a cross-section of the object, and (c) is taken in. A model shape dimension measuring method characterized by constructing a cross-sectional image as three-dimensional data that can be used by a computer. 16. A model shape dimension measuring method,
(A) An object is set, (b) a cross section of the object is produced by a cutting device, (c) a contour detector captures the contour shape data of the cross section, and (d) captures the contour shape data. A model shape dimension measuring method characterized by being constructed as three-dimensional data usable by a computer. 17. A model shape dimension measuring method, comprising:
(A) Set an object, (b) sequentially create cross sections of the object, (c) capture information of the cross section with a CCD camera,
(D) A model shape dimension measuring method characterized by constructing a captured cross-sectional image as three-dimensional data that can be used by a computer. 18. A model shape dimension measuring method, comprising:
(A) An object mold is produced using the embedding material for object fixation,
(B) The mold of the object is set, (c) the cross sections of the mold of the object are sequentially manufactured, (d) the information of the cross section is taken in,
(E) A model shape dimension measuring method characterized by constructing a captured cross-sectional image as three-dimensional data that can be used by a computer. 19. A model shape dimension measuring method, comprising:
(A) An object is set, (b) a cross section of the object is produced by an energy beam processing device, (c) a cross-sectional image of the cross section is captured by an optical scanning device, and (d) a captured cross-sectional image is calculated by a computer. A model shape dimension measuring method characterized by being constructed as usable three-dimensional data. 20. A model shape dimension measuring method,
(A) setting an object, (b) making a cross section of the object with a laser beam, (c) scanning the cross section of the object with a weakened laser beam, capturing a cross-sectional image of the cross section,
(D) A model shape dimension measuring method characterized by constructing a captured cross-sectional image as three-dimensional data that can be used by a computer.