JPH10307914A - Dynamic shape analysis device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately measure a dynamic cubic shape despite the break of a striped light pattern and regardless the surface color of an object by extracting the color image data from a projected image of the striped light pattern, fetching and storing successively the image data in each frame and then reading out successively the stored image data of each color to analyze the shape of the measured object. SOLUTION: An A/D conversion circuit 31 converts the NTSC analog video signals inputted from a video camera 22 into the digital image data. A color image data extractor 32 extracts the digital image data as the color image data. A frame image memory 33 stores the extracted prescribed color image data in each frame. An image compression circuit 34 compresses each frame image data down to 1/3. An image synthesizing circuit as synthesizes every 1/3 image data into the images of a frame. Then a personal computer 4 carries out various dynamic analysis processes and outputs these process results to a CRT, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dynamic shape analyzer for measuring a shape of a dynamic object in a non-contact manner, and more particularly to a dynamic shape analyzer for dynamically measuring a three-dimensional shape of an object.

[0002]

2. Description of the Related Art Conventionally, in a medical field such as scoliosis or an apparel field, the shape of a human body is measured and analyzed. As a measuring device used in such a case, a shape measuring device using a laser beam is used. Are known. The shape measuring device (not shown) using the laser light includes a light projecting unit that emits a plurality of (for example, ten) laser lights,
The light beam emitted from the light projecting unit is scanned from the upper part to the lower part of the subject for a few seconds, and the distance between the light emitting point and the light projecting part is calculated by photographing the light beam with a video camera or the like. To create image data of the subject's surface shape,
This image data is analyzed by a personal computer or the like. The shape measurement device using this laser light
The advantage of using laser light is that it does not harm the human body unlike an X-ray apparatus.

[0003]

However, in this conventional light spot type shape measuring device, it takes a long time for one measurement (one screen), and the subject moves during the measurement, so that accurate data can be obtained. There was no problem. Further, there is a problem that shape measurement cannot be performed in a moving state.

[0004] The inventors of the present invention have proposed "Japanese Patent Application No. 8-331.
178 ", an invention of a" dynamic shape analyzer "capable of measuring a shape while a subject is moving was proposed. This dynamic shape analyzer is a device that projects a black-and-white striped light pattern on a subject, captures the projected image with a video camera, and measures the dynamic three-dimensional shape of the subject based on the captured image data. is there.

However, the dynamic shape analyzer uses black and white striped light. For example, when a subject wears black clothes, black and white contrast cannot be obtained well and it is difficult to recognize the stripes. There is a problem that when the light amount of the striped light is increased to avoid this problem, the subject feels dazzling. In the dynamic shape analysis device, for example, when a hand is measured, when a stripe between fingers is interrupted, it becomes impossible to determine which stripe is connected to which stripe, and the image data is automatically analyzed. There was a problem that it was difficult.

In such a case, for example, by projecting several types of stripe patterns having different stripe thicknesses, such as barcodes, onto the object to be measured, even if the stripes are interrupted on the way, which one is the what-order stripe. However, this method has no effect when the object to be measured is dark, and also measures by switching several types of barcodes with different thicknesses. ) Takes a long time to measure, so that it is not suitable for measurement of a moving shape.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem. When a dynamic three-dimensional shape of a dynamic object is measured using a striped light pattern, the color of the surface of the object is affected. It is another object of the present invention to provide a dynamic shape analysis device capable of accurately measuring a dynamic three-dimensional shape of an object even when a striped light pattern is interrupted.

[0008]

According to a first aspect of the present invention, there is provided a dynamic shape analyzer, wherein one or a plurality of light projectors for generating a striped light pattern including a chromatic color are provided. Unit, one or more video cameras for capturing a projected image of the striped light pattern projected from the light projecting unit onto the object to be measured, and outputting the captured analog image signal, and the video camera Image data converting means for converting the analog image signal input from the digital image data into digital image data, color image data extracting means for extracting predetermined color image data from the digital image data, and sequentially converting the color image data in frame units Image capturing means for capturing, storage means for sequentially storing the color image data captured by the image capturing means, and each color image data stored by the storage means It is characterized in that it comprises analyzing means for analyzing the shape of the measured object are sequentially read out, the.

According to the first aspect of the present invention, a stripe light pattern including a chromatic color is generated by one or a plurality of light projecting portions, and the stripe light pattern projected from the light projecting portion to the object to be measured. A projection image of the light pattern is captured by one or more video cameras, and the captured analog image signal is converted into digital image data by image data conversion means. From the digital image data, predetermined color image data is converted into color data. The color image data is extracted by the image data extracting means, and the color image data is sequentially captured by the image capturing means in a frame unit and sequentially stored in the storage means, and the stored color image data is sequentially read out to obtain the shape of the object to be measured. Is analyzed by the analysis means. Therefore, while being able to measure the dynamic shape of the measured object, for example,
When the object to be measured is dark, the fringe can be recognized by color without making it difficult to distinguish the fringe as in the case of a black and white fringe light pattern, and the fringe recognition rate increases.

For example, when a hand is measured, the stripes between the fingers are not interrupted, so that it is not possible to determine which stripes are in which order. If colors are combined, stripe numbers can be distinguished by color, and automatic measurement can be performed relatively easily.

Here, as the striped light pattern including chromatic colors, for example, a pattern in which red (R), green (G), and blue (B) are repeated in order, or a red (R) ) May appear in any combination, and the type of color may be arbitrarily determined.

According to a second aspect of the present invention, in the dynamic shape analyzing apparatus according to the first aspect of the present invention, the image data conversion means synchronizes the plurality of analog image signals input from the video camera to a digital image. Each color image data extracted by the color image data extraction means is compressed at a predetermined magnification in the horizontal direction in units of frames, and the compressed color image data is synthesized. An image synthesizing unit that generates one frame of synthesized color image data, and sequentially reads and separates the synthesized color image data captured by the image capturing unit and accumulated by the storage unit, and separates each of the separated color image data. Decompress to 1 frame of color image data,
Stereo image synthesizing means for synthesizing the decompressed color image data into stereoscopic image data by combining them by predetermined arithmetic processing based on color recognition.

According to the second aspect of the present invention, the image data conversion means is configured to convert a plurality of analog image signals input from the video camera into digital image data in synchronization with each other. After each color image data extracted by the color image data extraction means is compressed in the horizontal direction at a predetermined magnification in frame units, it is combined to generate one frame of combined color image data. And
The combined color image data is sequentially read from the storage means, separated and expanded by the three-dimensional image synthesis means into one frame of digital image data, and the expanded color image data is converted into a predetermined digital image data based on color recognition. They are joined by arithmetic processing and synthesized into three-dimensional image data.
Therefore, a dynamic three-dimensional shape is measured by a chromatic striped light pattern photographed by a plurality of video cameras, and is not affected by the color of the surface of the object to be measured. Since the three-dimensional synthesis of the image data is performed based on the image data, it is possible to reliably measure the dynamic three-dimensional shape.

Here, the predetermined arithmetic processing means, for example, an arithmetic processing using a spline function or the like.

According to a third aspect of the present invention, in the dynamic shape analyzer according to the first or second aspect, the light projecting unit can change a striped light pattern including a chromatic color according to the color of the object. It is characterized by having a lattice slit.

According to the third aspect of the present invention, since the grating slit provided in the light projecting portion can change a striped light pattern including a chromatic color according to the color of the object, the object to be measured can be changed. By using the striped light pattern according to the above, the measurement can be reliably performed without being affected by the color of the surface of the measured object.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a dynamic shape analyzer according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram showing a main configuration of a dynamic shape analysis device according to the present invention. Dynamic shape analyzer 1 shown in FIG.
Is composed of an imaging device 2, an image data processing device 3, a personal computer 4, a CRT (Cathod Ray Tube) 5, a color printer 6, and the like.

The image pickup device 2 includes a grating projector 21 (FIG. 2) as a light projecting unit and a video camera 22 (FIG. 2).
The dynamic shape analysis device 1 according to the present embodiment includes three imaging devices 2.

As shown in FIG. 2, the grating projector 21 has a grating slit 21a and a light source generator 21b. Light (eg, halogen light) output from the light source generator 21b passes through the grating slit 21a. This is a device that generates a striped light pattern in the horizontal direction. The grid slit 21a is formed by attaching chromatic cellophane to the grid, and can change the chromatic pattern according to the color of the measured object. For example, as shown in FIG. , Green (G) and blue (B) are alternately attached, or one of three is red.

As shown in FIG. 1, the video cameras 22, 22, 22 are mutually connected with synchronization cables 2a, 2a for synchronizing photographing timing, and are connected via the synchronization cables 2a, 2a. The photographing operation can be synchronized based on the received synchronization signal. Although not shown, the video cameras 22, 22, 22 have, for example, a CC having a predetermined resolution as an image sensor.
D (Charge Coupled Device) is mounted, and an external terminal for outputting a video signal during shooting is provided. Each video camera 22 is arranged at a predetermined position for shooting an object to be measured. You can use the NTSC (Nation
al Television System Committee) and outputs it to the image data processing device 3 as an analog video signal. This NT
The analog image signal of the SC system has 525 scanning lines, 6
R (red), G indicating luminance, saturation, and hue of each color are used.
The three primary color signals (green) and B (blue) are converted into a luminance signal and a color difference signal and output.

More specifically, as shown in FIG. 2, when a chromatic striped light pattern is projected from the grating projector 21 onto the object to be measured and observed at a point different from the projection direction, the striped light The pattern is observed after being deformed according to the surface shape of the measured object. Then, the video camera 22 captures the deformed striped light pattern image and outputs the video to the image data processing device 3 as an analog video signal.

As shown in FIG. 4, the image data processing device 3 includes an A / D conversion circuit 3 as image data conversion means.
1. Color image data extractor 32 as a color image data extraction unit, frame image memory 33, image compression circuit 34 (image synthesis unit), image synthesis circuit 35 (image synthesis unit), D
/ A conversion circuit 36 and the like.

The A / D conversion circuit 31 converts an NTSC analog video signal input from the video camera 22 into RGB digital image data and outputs the digital image data to a color image data extractor 32.

The color image data extractor 32 has a CPU
(Central Processing Unit) 32a, work memory 3
2b, using the work memory 32b as a work area, comparing the RGB digital image data with reference data having a predetermined hue, saturation, and luminance that have been subjected to color learning in advance, and determining whether the data corresponds to the data by the CPU 32a. Then, the corresponding digital image data is extracted as color image data and output to the frame image memory 33.

The frame image memory 33 stores the extracted predetermined color image data in frame units.

The image compression circuit 34 is adapted to display each frame image data stored in the frame image memory 33 on the right 1/3 screen, middle 1/3 screen and left 1/3 screen in the display screen. / 3, and output to the image synthesis circuit 35.

The image synthesizing circuit 35 synthesizes each 1/3 image data compressed by the image compressing circuit 34 into an image of one frame, and outputs it to a D / A conversion circuit 36.

The D / A conversion circuit 36 converts the digital image data of one frame synthesized by the image synthesis circuit 35 into a synthesized NTSC analog image signal and outputs it to the personal computer 4.

The personal computer 4 includes therein a video capture board 41 as image capturing means, a hard disk 42 as storage means, a CPU 43 as stereoscopic image synthesizing means and analysis means, and a program memory and a development memory (not shown). It has.

The video capture board 41 A / D converts the composite NTSC analog video signal input from the image data processing device 3 into digital image data,
This digital image data is compressed by a predetermined compression method (for example, J
PEG (still image compression method), and has functions such as control of converting the compressed image data into bid map data and sequentially writing the data on the hard disk 42 of the personal computer 4.

The hard disk 42 sequentially writes the bitmap data input from the video capture board 41. The program memory (not shown) is a PR
It is composed of an OM or the like, rewrites various control programs necessary for the dynamic shape analysis processing, and stores the rewritten various control programs. Expansion memory (not shown)
Is configured by a RAM or the like, reads a corresponding control program from a program memory (not shown) according to a designated dynamic shape analysis mode, expands the control program, and temporarily stores data being processed.

The CPU 43 reads out various control programs stored in a program memory (not shown) and develops them in a development memory (not shown).
Performs various dynamic shape analysis processes on the bid map data stored in the CRT5,
Alternatively, it outputs to the color printer 6.

The CRT 5 inputs and displays the results of the dynamic shape analysis performed by the personal computer 4.

The color printer 6 inputs the processing result of the dynamic shape analysis processing by the personal computer 4 and prints out the processing result.

Next, the operation of the dynamic shape analysis processing by the dynamic shape analysis device 1 according to the present invention will be described. First, the flow of image data processing performed in the image data processing device 3 will be described with reference to the flowchart shown in FIG. 5 and the drawings illustrating the image data processing flow shown in FIGS. 6 to 8 in detail.

In the image data processing, first, in step S1, as shown in FIG.
2 and 22, each image input channel ch1, ch2, c
Processing for detecting and synchronizing the starting point of the odd-numbered field of each NTSC analog image signal input to h3 is performed, and the process proceeds to step 2.

In step S2, the synchronized NTSC analog image signal is converted into digital image data by A / D conversion. Then, the process proceeds to step S3. In step S3, a predetermined color is converted from the digital image data. A color image data extraction process for extracting image data is performed, and the process proceeds to step S4.

In step S4, a process of storing the color image data in the frame image memory 33 for each channel ch1, ch2, and ch3 on a frame basis is performed, and the flow advances to step S5.

At step S5, as shown in FIG. 7, the color image data of each frame written in the frame image memory 33 is read out, and the left 1/3, middle 1/3 and right 1/3 in the display screen are filled. The frame image data on the channel ch1 side is compressed to the left one-third so that the frame image data on the channel ch2 side is displayed in the middle one-third so that the image is displayed in the middle one.
The image data is compressed to three stuffs, and the frame image data on the channel ch3 side is compressed to 右 right stuff. Then, each frame image data compressed to 1/3 is packed into the left 1/3,
After performing the process of writing data into the frame image memory 33 again with 3 jams and 1/3 jam on the right, the process proceeds to step S6.

In step S6, as shown in FIG. 8, the left-justified, middle-filled, and right-justified 1 / 3-frame color image data written in the frame image memory 33 is read out. Are combined into one frame, and the combined one-frame combined color image data is written into the frame image memory 33 again, and then the process proceeds to step S7.

In step S7, the frame image memory 3
After reading out the composite color image data of each frame written in No. 3 and performing D / A conversion, an image synthesizing process of synthesizing the compressed 1/3 image data into one frame is performed, and the synthesized color image data is synthesized After performing D / A conversion to an analog video signal and outputting the synthesized NTSC analog video signal to the video capture board 41 of the personal computer 4 in step S8, the main image data processing ends.

Next, the color image data processing based on the input composite NTSC analog video signal performed by the personal computer 4 will be described with reference to the flowchart of FIG.
The color image data processing flow from 0 to FIG. 12 will be described with reference to the drawings.

In this color image data processing, first,
In step S10, as shown in FIG. 10, the video capture board 41 of the personal computer 4 A / D converts the composite NTSC analog image signal input from the image data processing device 3 into digital color image data. D conversion processing is performed, and then step S11
Then, the color image data is compressed by a predetermined compression method (for example, JP
The image data is compressed by EG (still image compression method), and a bit map data conversion process for converting the color image data into a bit map data is performed. In step S12, the bit map data is sequentially written to the hard disk 42 in the personal computer 4. After performing the processing, the process moves to step S13.

In step S13, as shown in FIG. 11, the bitmap data written on the hard disk 42 is sequentially decompressed and read out (decoding processing based on JPEG), and decompression processing is performed to produce one frame of synthesized bitmap data. In step S14, the combined bitmap data of one frame is image-separated, and within one frame, left 1/3 packed bitmap data, middle 1/3 packed bitmap data, right 1/3 packed bit An image separation process as map data is performed. Next, in step S15, these separated bitmap data are subjected to image decompression, and image decompression processing is performed to make each frame bitmap data. Then, the process proceeds to step S16.

In step 16, the CPU 43 of the personal computer 4 reads out the three-dimensional image joining program stored in the program memory (not shown) and develops it in the development memory (not shown). Performs a stereoscopic image synthesis process of joining one frame of bitmap data to a stereoscopic image,
After that, in step S17, the obtained three-dimensional bitmap data is analyzed according to various analysis programs stored in a program memory (not shown).
Then, in step S18, the obtained analysis result is
5 or a color printer 6.

Next, the analysis of the dynamic three-dimensional shape of the subject, which is executed by the dynamic shape analyzer 1 according to the present invention, will be described below. First, three units of the imaging device 2 having three lattice projectors 21 (light projection units) and the video camera 22 as one unit are arranged at substantially the same angle around the subject and at the same height. At this time, the chromatic pattern of the lattice slit 21a is determined according to the color of the clothes of the subject. Here, the grid slits 21a of the chromatic pattern of red (R), green (G), and blue (B) shown in FIG. 3 are used.

Then, as shown in FIG. 2, when the grating projector 21 projects a red (R), green (G), and blue (B) striped light pattern onto a subject as a measurement object, the striped light pattern is obtained. The light pattern is deformed according to the surface shape of the subject. This deformed striped light pattern image is taken by video camera 2
2, and outputs the captured NTSC analog video signal to the image data processing device 3.

Next, in the image data processing device 3, the analog video signal of the NTSC system input from the video camera 22 is converted into digital image data while synchronizing with the A / D conversion circuit 31 (image data conversion means). This A
Red, green,
The color image data corresponding to blue is extracted by the color image data extractor 32.
(Color image data extracting means), and the extracted color image data is stored in the frame image memory 3 in frame units.
3 respectively. Subsequently, the stored color image data is reduced to 1/3 by the image compression circuit 34 (image synthesizing means) so as to be displayed on the right 1/3 screen, middle 1/3 screen and left 1/3 screen in the display screen. The image data is compressed, the compressed 1/3 color image data is synthesized into one frame of synthetic color image data by an image synthesizing circuit 35 (image synthesizing means), and the synthesized color image data is subjected to D / A conversion and synthesized NTSC. An analog image signal is output to a video capture board 41 (image capturing means) in the personal computer 4.

The video capture board 41 compresses the captured color image data according to a predetermined compression method (for example, JPEG (still image compression method)), converts the image data into bid map data, Hard disk 42 in 4 (storage means)
Are sequentially stored.

Subsequently, C in the personal computer 4
The PU 43 (stereoscopic image synthesizing means) sequentially calls the bitmap data written on the hard disk 43 by the video capture board 41 and performs a decompression process (for example,
JPEG-based composite processing) into frame-based composite bitmap data, and the composite bitmap data is subjected to image separation processing, and is separated bitmap data compressed to the left 1/3 screen in one frame. Separation bitmap data compressed to a ３ screen and separation bitmap data compressed to a right そ れ ぞ れ screen are subjected to image decompression processing to generate bitmap data of each color in frame units. C based on the bitmap data of each color
FIG. 13 shows an example of an image on the RT5 screen.

Then, C in the personal computer 4
The PU 43 performs a process of joining the bitmap data of each color in three frame units using a spline function or the like in accordance with a program extracted from a program memory (not shown), and performs processing of 1 Generate three-dimensional bitmap data for each color. CR based on the bitmap data of each color
FIG. 14 shows an example of an image on the T5 screen.

The CPU 43 (analysis means) processes the three-dimensional bitmap data of each color according to a control program corresponding to various dynamic shape analysis processes stored in a program memory (not shown). It is possible to digitize each frame, obtain the center of gravity of each cross section from the three-dimensional bitmap data of each color, and create a barycentric line connecting them.

According to the dynamic shape analyzer 1 of the embodiment of the present invention described above, a chromatic striped light pattern is projected from the grating projector 21 (light projecting unit) onto the object to be measured. It is possible to analyze the dynamic three-dimensional shape of the measured object based on the striped light pattern. For example, when the measured object is dark, it is possible to project a chromatic striped light pattern on the measured object. This makes it possible to recognize the stripes reliably without making it difficult to distinguish the stripes as in a black and white stripe light pattern.

For example, when a hand is measured, the stripes between the fingers are not interrupted, and it is not possible to determine which stripe is what number. Therefore, it is possible to reliably determine the color and compare the automatic measurement. It can be done easily.

Although the dynamic shape analyzer 1 of the above-described embodiment has a configuration in which three imaging devices 2 (light projecting unit and video camera) are provided, for example, when observing the shape of the face, The imaging device 2 may be used as a single unit to capture images from one direction. When one imaging device 2 is used, a synchronization process (step S1), a compression process (step S5), a combination process (step S6), and an image separation process (step S1)
4) Since there is no need to perform image expansion processing (step S15) and stereoscopic image synthesis processing (step S16), the configuration can be made relatively simple, and costs can be reduced.

When image data is taken into the video capture board 41, an analog image signal is used.
Digital image data may be used. Hard disk 4
In order to reduce the load on the storage amount of 2, the image data is synthesized or compressed, but if the storage capacity of the hard disk is sufficient, some or all of those processes are omitted. Is also good. Alternatively, the video signal captured by the video camera 21 may be output to the image data processing device 3 as an RGB signal without being converted into an analog image signal of the NTSC system. Also, grating slit 2
In addition to forming a chromatic striped pattern with cellophane, 1a may be, for example, colored glass.
Any material that transmits light to generate a color may be used.

[0057]

According to the first aspect of the present invention, a striped light pattern including a chromatic color is generated by one or a plurality of light projecting units, and light is projected from the light projecting unit to the object to be measured. A projected image of the striped light pattern is captured by one or more video cameras, and the captured analog image signal is converted into digital image data by image data conversion means, and predetermined color image data is converted from the digital image data. Is extracted by the color image data extracting means, the color image data is sequentially captured by the image capturing means in frame units, and is sequentially stored in the storage means. Each of the stored color image data is sequentially read out and the dynamic object is read out. Is analyzed by the analysis means, so that the dynamic shape of the measured object can be measured, and for example, the measured object is dark. If, because it recognizes the fringes color without hardly discrimination stripes as in the case of striped light pattern of black and white, the recognition rate of the pattern increases.

For example, when a hand is measured, the stripe between the fingers is not interrupted so that it is not possible to determine which stripe is which. If colors are combined, stripe numbers can be distinguished by color, and automatic measurement can be performed relatively easily.

According to the second aspect of the present invention, the image data converting means is configured to convert a plurality of analog image signals input from the video camera into digital image data in synchronization with each other. After each color image data extracted by the color image data extraction means is compressed in the horizontal direction at a predetermined magnification in frame units, it is combined to generate one frame of combined color image data. And
The combined color image data is sequentially read from the storage means and separated by the stereoscopic image combining means, and each separated color image data is expanded into one frame of digital image data. Are combined by predetermined arithmetic processing and synthesized into three-dimensional image data, so that a dynamic three-dimensional shape is measured by a chromatic striped light pattern photographed by a plurality of video cameras, Since the three-dimensional synthesis of the image data is performed without being affected by the color of the surface of the measured object and based on the color recognition, it is possible to reliably measure the dynamic three-dimensional shape.

According to the third aspect of the present invention, the grating slit provided in the light projecting portion can change the striped light pattern including chromatic colors according to the color of the object. By using the striped light pattern according to the above, the measurement can be reliably performed without being affected by the color of the surface of the measured object.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a main configuration of a dynamic shape analysis device according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram showing one embodiment of photographing an object by an imaging device.

FIG. 3 is a diagram schematically showing one embodiment of a grating slit 21a.

FIG. 4 is a block diagram showing a main configuration of the image data processing device 3.

FIG. 5 is a flowchart showing a flow of image signal processing performed in the image data processing device 3;

FIG. 6 is a flow chart of the image data synchronization processing performed by the image data processing device 3 in steps S1 to S4 of FIG.
FIG. 7 is a diagram showing a flow of a D conversion process, a color image data extraction process, and a process of a frame image memory 33.

FIG. 7 is a diagram showing a flow of a color image data compression process performed by the image data processing device 3 in step S5 of FIG. 5;

8 is a diagram showing a flow of a process of synthesizing compressed color image data and a process of D / A conversion performed by the image data processing device 3 in steps S6 to S8 in FIG.

FIG. 9 is a flowchart of image data processing performed by the personal computer 4 based on an input composite NTSC analog video signal.

10 is a diagram showing the flow of A / D conversion processing, compression processing, and storage processing of image data performed by the personal computer 4 in steps S10 to S12 in FIG.

11 is a diagram showing a flow of image data decompression processing, separation processing, and decompression processing performed by the personal computer 4 in steps S13 to S15 in FIG.

12 is a diagram illustrating a flow of a process of joining image data to a stereoscopic image, an analysis process, and an output process of an analysis result performed by the personal computer 4 in steps S16 to S18 in FIG.

FIG. 13 is an example of an image on a CRT5 screen based on digital image data in frame units subjected to image expansion processing.

FIG. 14 is an example of a video image on a CRT5 screen based on synthesized digital image data obtained by joining three frames of digital image data together;

[Explanation of symbols]

REFERENCE SIGNS LIST 1 dynamic shape analysis device 2 imaging device 3 image data processing device (image data conversion means, image synthesis means) 4 personal computer 5 CRT 6 color printer 21 lattice projector (light projection unit) 21 a lattice slit 22 video camera 31 A / D Conversion circuit (image data conversion means) 32 Color image data extractor (color image data extraction means) 33 Frame image memory 34 Image compression circuit (image synthesis means) 35 Image synthesis circuit (image synthesis means) 41 Video capture board (image capture) Means) 42 hard disk (storage means) 43 CPU (stereoscopic image synthesis means, analysis means)

Claims (3)

[Claims] 1. A light-emitting device comprising: one or more light-emitting units for generating a striped light pattern including a chromatic color; and an image of a projected image of the striped light pattern projected from the light-emitting unit to an object to be measured. And one or more video cameras that output the captured analog image signal, image data conversion means that converts the analog image signal input from the video camera into digital image data, and Color image data extracting means for extracting predetermined color image data; image capturing means for sequentially capturing the color image data in frame units; storage means for sequentially storing the color image data captured by the image capturing means; Analyzing means for sequentially reading out each color image data stored by the recording means and analyzing the shape of the object to be measured. Dynamic shape analyzer. 2. The image data conversion means is configured to convert a plurality of analog image signals input from the video camera into digital image data by synchronizing the plurality of analog image signals. Each of the extracted color image data is horizontally compressed at a predetermined magnification in frame units,
An image synthesizing unit that synthesizes the compressed color image data to generate one frame of synthesized color image data; and sequentially reads out and separates the synthesized color image data captured by the image capturing unit and stored by the storage unit. Then, the separated color image data is expanded to 1
And stereoscopic image combining means for combining the expanded color image data by predetermined arithmetic processing based on color recognition and combining the expanded color image data into three-dimensional image data as color image data of a frame. The dynamic shape analysis device according to claim 1. 3. The dynamic light source according to claim 1, wherein the light projecting unit includes a grid slit capable of changing a chromatic striped light pattern according to the color of the object. Shape analyzer.