KR101798219B1 - Imaging Device and Method for Obtaining Multi Contrast Images - Google Patents
Imaging Device and Method for Obtaining Multi Contrast Images Download PDFInfo
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- KR101798219B1 KR101798219B1 KR1020150089842A KR20150089842A KR101798219B1 KR 101798219 B1 KR101798219 B1 KR 101798219B1 KR 1020150089842 A KR1020150089842 A KR 1020150089842A KR 20150089842 A KR20150089842 A KR 20150089842A KR 101798219 B1 KR101798219 B1 KR 101798219B1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/06—Means for illuminating specimens
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/06—Means for illuminating specimens
- G02B21/08—Condensers
- G02B21/082—Condensers for incident illumination only
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Abstract
An aspect of the present invention relates to an image information acquiring apparatus and method for securing a multimode image, and more particularly, to an image information acquiring apparatus and an image information acquiring apparatus capable of acquiring a plurality of multimode images at a time using a color- And a method thereof.
According to an embodiment of the present invention, a light source or a filter capable of irradiating a color pattern at low cost instead of a specialized condenser and an objective lens can be used to obtain bright field, dark field and optical phase difference image information in one shot Provides an effect.
Description
An aspect of the present invention relates to an image information acquiring apparatus and method for securing a multimode image, and more particularly, to an image information acquiring apparatus and an image information acquiring apparatus capable of acquiring a plurality of multimode images at a time using a color- And a method thereof.
The contents described in this section merely provide background information on the embodiment of the present invention and do not constitute the prior art.
1 (a) shows a bright field image, FIG. 1 (b) shows a dark field image, and FIG. 1 (c) shows an optical phase difference image.
Generally, a bright field image is an image obtained by observing how weak a beam is as it passes through the subject. Observation of a living tissue such as a cell with a microscope is difficult to obtain images through focusing, and can be secured through defocusing .
Since a living tissue such as a cell is difficult to obtain an image by a general microscope, it is possible to secure an image through dyeing or the like, or to provide a dark contrast image or a differential interference phase difference (DIC ) Image or the like.
Conventional image acquisition devices such as microscopes can only acquire bright field images. In order to obtain differential interference phase difference (DIC) images or dark-field images, additional optical systems such as specialized objective lenses or condensers must be equipped.
The time and expense of these additional equipment increases. Therefore, it is urgent to develop an image information acquiring apparatus or method capable of obtaining bright field, dark field, and optical phase difference image information by using a light source or a filter capable of low-cost color pattern irradiation.
Accordingly, an aspect of the present invention has been proposed to solve the above-mentioned problems, and an object of the present invention is to provide a light source that can give different patterns according to colors, instead of a light source of a general microscope, And an image information acquiring apparatus and an image information acquiring method that can obtain an optical phase difference image by one shot.
Another object of the present invention is to provide an image information acquiring apparatus and an image information acquiring method which can obtain quantitative phase information by two photographings.
The technical object of the present invention is not limited to the above-mentioned technical objects and other technical objects which are not mentioned can be clearly understood by those skilled in the art from the following description will be.
According to an aspect of the present invention, there is provided an apparatus for acquiring image information, including a light emitting unit for irradiating a plurality of beams having different wavelengths to an object to be examined.
In addition, it is also possible to receive the plurality of beams passed through the subject, to separate color information from the plurality of received beams, to process the separated color information, And a light receiving unit for acquiring a plurality of different image information.
According to another aspect of the present invention, there is provided an apparatus for acquiring image information, including a light source for irradiating a beam with a pseudo body.
And a filter provided between the light source and the subject to form a pattern so that a plurality of different colors are imparted to the beam irradiated by the light source.
And a controller for receiving the plurality of beams passed through the subject and separating color information from the plurality of beams received and calculating the separated color information to generate a plurality of different image information about the subject And a light-receiving portion for securing the light-receiving portion.
According to still another aspect of the present invention, there is provided an apparatus for acquiring image information, including a first area for irradiating a beam having a first color, a second area for irradiating a beam having a second color, And a pattern portion including a third region for irradiating a beam having a third color.
The apparatus may further include an object support supporting the object to be inspected.
Receiving the plurality of beams accommodating information about the object to be inspected in cooperation with the object to be examined, separating color information from the plurality of received beams, arithmetically processing the separated color information, And a light receiving unit that acquires a plurality of different image information regarding the object to be inspected.
According to another aspect of the present invention, there is provided a method for acquiring image information, including the steps of: irradiating a first beam having a first color to an object to be inspected;
And a second irradiating step of irradiating a second beam having a second color different from the first color to the object to be inspected.
And the first beam and the second beam interact with the inspected object to receive information about the inspected object.
And a light receiving step of receiving the first beam and the second beam containing information on the object to be inspected.
And securing a plurality of different pieces of image information regarding the subject from the received first beam and the second beam.
As described above, according to the embodiment of the present invention, by using a light source or a filter capable of irradiating low-cost color patterns instead of a specialized condenser and an objective lens, bright field, dark field and optical phase difference Thereby providing an effect of obtaining image information.
In addition, it is possible to obtain the quantitative phase information of the subject by applying a specific algorithm to the optical phase difference image in one direction (X direction) and the optical phase difference image in the other direction (Y direction) different from the one direction to provide.
In addition, the effects of the present invention have various effects such as excellent durability according to the embodiments, and such effects can be clearly confirmed in the description of the embodiments described later.
Figure 1 shows a bright field image, a dark field image and an optical phase difference image.
2 shows an image information acquiring apparatus according to an embodiment of the present invention.
3 shows a region irradiated with a beam in the light emitting portion according to an embodiment of the present invention.
Fig. 4 shows quantitative phase image information of the subject obtained by two photographs.
Hereinafter, an embodiment of the present invention will be described in detail with reference to exemplary drawings.
It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals whenever possible, even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.
In addition, the size and shape of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, terms specifically defined in consideration of the constitution and operation of the present invention are only for explaining the embodiments of the present invention, and do not limit the scope of the present invention.
2 shows an image information acquiring apparatus according to an embodiment of the present invention.
The image
(120), separates color information from the plurality of received beams, performs arithmetic processing on the separated color information, and outputs the color information to the subject And a
The image
The image
The
The
According to an embodiment, the
The
According to the embodiment, the
In an exemplary embodiment, the filter may be electrically or mechanically connected to the control unit, and the color pattern may be changed under the control of the control unit. In addition, a plurality of filters may be provided in the exemplary embodiment, and the plurality of filters may have various color patterns. A user can select a filter having a desired pattern among these filters and install the selected filter in the image
According to the embodiment, the
The plurality of beams emitted from the
The case where the
FIG. 3 shows a region for irradiating a beam in the
Fig. 4 shows quantitative phase image information of the subject obtained by two photographs.
According to the embodiment, the
Depending on the embodiment, the first color may include blue, the second color may include red, and the third color may include green. For example, the first color may be blue, the second color may be red, and the third color may be green. In this case, when the
According to the embodiment, the pattern may be such that the first color and the second color are disposed in contact with each other, and the third color is disposed so as to surround the first color and the second color. According to the embodiment, the first color and the second color may be formed in a semicircular shape in which straight portions of each other are in contact with each other.
The
The beams irradiated in the
The case where the
The light emitting diode array included in the
In this case, if the color camera separates the color information of the red beam and the blue beam, subtracts them from each other, and divides them by adding the color information of the red beam and the color information of the blue beam, A differential phase difference image can be obtained. In other words, in the embodiment, the following equation (1) is expressed by the color information (R) of the red beam - the color information (B) of the blue beam / (the color information (R) , (RB) / (R + B), and the Y-direction differential phase difference image can be obtained.
At this time, if the color camera separates the color information of the red beam and the blue beam and divides them by the sum of the values, the Y-directional optical phase difference image can be obtained.
In addition, by adding the color information of the blue beam and the color information of the red beam, a general bright field microscope image can be obtained.
Since the green beam is at the outer periphery of the numerical aperture of the
Meanwhile, the
Here, the one direction and the other direction may be perpendicular to each other, and may refer to the Y axis direction and the X axis direction, respectively (see FIG. 4). In other words, one direction may be a pattern of a light source as shown in FIG. 3 (b) where a
Specifically, if the light emitting diode array is shaped as shown in FIG. 3 (a), and the values obtained by subtracting the color information of the red beam and the blue beam are added to each other, an optical phase difference image in the X direction can be obtained. Here, the optical phase difference image in the X direction may correspond to the first information described above.
In addition, if the light emitting diode array is shaped as shown in FIG. 3 (b) and the above process is repeated, a Y-direction optical phase difference image can be obtained. Here, the optical phase difference image in the Y direction may correspond to the second information described above.
Quantitative phase information of the subject 120 can be obtained by applying the Complex Fourier Integral algorithm to the optical phase difference images in the X direction and the Y direction obtained through the two photographing operations.
The
(120), separates color information from the plurality of received beams, performs arithmetic processing on the separated color information, and outputs the color information to the subject And a
According to the embodiment, a filter may be provided between the light source and the subject 120. However, it is not necessarily required to be in that position, and the filter may be located on the Fourier plane of the subject 120 according to the embodiment. In this case, the beam irradiated from the light source can pass through the filter on the Fourier plane encountered through the
The
According to another embodiment, the filter may be a plurality of filters, and the plurality of filters may have different patterns. In this case, the user can select a filter having a desired pattern among a plurality of filters, and install the selected filter in the image
The image
Receiving the plurality of beams that receive information about the subject 120 by interacting with the subject 120, separating color information from the plurality of received beams, And a
Here, the
The
Here, the first information and the second information may correspond to the optical phase difference images in the X direction and the Y direction, respectively.
The
According to another embodiment of the present invention, there is provided a method of acquiring image information, comprising: a first irradiating step of irradiating a subject 120 with a first beam having a first color; A second irradiation step of irradiating a second beam having a second color different from the first color to the
The first beam and the second beam interacting with the subject 120 to receive information about the subject 120; A light receiving step of receiving the first beam and the second beam containing information on the object to be inspected 120; And
And securing a plurality of different pieces of image information regarding the subject 120 from the received first beam and the second beam.
In the first irradiation step and the second irradiation step, the first beam and the second beam can be irradiated to the
In the first irradiation step and the second irradiation step according to the embodiment, the first beam and the second beam can be irradiated to the
According to an embodiment, the step of securing information may include extracting first information of the first beam and second information of the second beam, and computing the first information and the second information.
The above description is only illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention.
The embodiments disclosed in the present invention are not intended to limit the scope of the present invention and are not intended to limit the scope of the present invention.
The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.
100: Acquisition device
110: light emitting portion, pattern portion
120: Subject
130: object lens
140: Fourier plane
150: tube lens
160:
210: blue area
220: Red area
230: green area
240: Border
Claims (27)
A plurality of beams of light having passed through the object to be inspected are received, color information is separated from the plurality of received beams, the separated color information is arithmetically processed, and a plurality of And a light receiving unit for acquiring different image information,
Wherein the plurality of beams of the light emitting portion are composed of a first color, a second color having a different wavelength from the first color, and a third color having a different wavelength from the first and second colors,
Wherein the first color area, the second color area, and the third color area are arranged in a predetermined pattern.
Wherein the light emitting unit includes an LED array.
Wherein the light emitting unit includes a light source that emits a beam and a filter that transmits only a beam of a specific wavelength or a beam of a specific range of wavelengths.
Wherein the light emitting unit emits the plurality of beams at the same time,
Wherein the light emitting unit and the light receiving unit are disposed with the subject to be interposed therebetween.
Wherein the light receiving unit comprises a color camera.
And a condenser provided between the light emitting unit and the subject to irradiate the subject with the beams at different angles.
Wherein the first color includes blue, the second color includes red, and the third color includes green.
Wherein the pattern is a pattern in which the region of the first color and the region of the second color are disposed in contact with each other and the region of the third color is disposed so as to surround the first color and the second color Image information acquisition device.
An object lens is disposed between the subject and the light receiving unit, and the first and second color areas surrounded by the third color area correspond to a numerical aperture of the object lens. Image information acquisition device.
Wherein the region of the first color and the region of the second color are formed in a semicircular shape in which straight portions of each other are in contact with each other.
Wherein the light receiving unit obtains the first information in a state in which the boundary line between the both straight lines is formed in one direction and the second information is acquired in a state where the boundary line is formed in the other direction perpendicular to the one direction, And acquires the image information based on the acquired image information.
And a control unit electrically or mechanically connected to the light emitting unit to change and control the shape of the pattern.
A filter which is provided between the light source and the object to be inspected so that a first color region having a plurality of different colors and a second color region and a third color region are arranged in a predetermined pattern in a beam irradiated by the light source, ; And
A plurality of beams of light having passed through the object to be inspected are received, color information is separated from the plurality of received beams, the separated color information is arithmetically processed, and a plurality of A light receiving unit for acquiring different image information;
The image information acquiring device comprising:
And a control unit for changing and controlling the pattern of the filter.
Wherein the plurality of filters are formed in a plurality of different patterns, respectively.
An object support supporting the object to be inspected; And
Receiving the plurality of beams accommodating information about the object to be inspected in cooperation with the object to be inspected, separating color information from the plurality of received beams, arithmetically processing the separated color information A light receiving unit for acquiring a plurality of different image information about the subject in a photographing operation;
The image information acquiring device comprising:
Wherein the pattern unit includes a fourth area for irradiating a beam having a fourth color different from the first color, the second color, and the third color.
Wherein the pattern unit is disposed such that the first area and the second area are in contact with each other, and the third area is disposed so as to surround the first area and the second area.
The light receiving unit secures the first information in a state that the boundary line between the first area and the second area is formed in one direction and secures the second information in a state where the boundary line is formed in the other direction perpendicular to the one direction And secures the image information through the first information and the second information.
A second irradiation step of irradiating a second beam having a second color different from the first color to the object to be inspected;
The first beam and the second beam interacting with the subject to receive information about the subject;
A light receiving step of receiving the first beam and the second beam containing information on the object to be inspected; And
And securing a plurality of different pieces of image information relating to the subject in one shot from the received first beam and the second beam,
Wherein the step of securing information comprises the steps of separately extracting first information of the first beam and second information of the second beam and calculating the first information and the second information, Image information acquisition method.
Wherein the first beam and the second beam are irradiated to the subject at different angles in the first irradiation step and the second irradiation step.
Wherein the first beam and the second beam are irradiated to the object simultaneously at the first irradiation step and the second irradiation step.
Wherein the first beam and the second beam are received at the same time in the light receiving step.
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KR102010136B1 (en) * | 2017-08-28 | 2019-08-12 | 연세대학교 산학협력단 | Imaging system for Obtaining multi-mode images |
EP3614191A1 (en) * | 2018-08-20 | 2020-02-26 | Till GmbH | Microscope device |
KR102199314B1 (en) * | 2019-03-07 | 2021-01-06 | (주) 인텍플러스 | Apparatus for inspecting display panel |
CN110927947B (en) * | 2019-11-15 | 2022-03-18 | 上海安翰医疗技术有限公司 | Phase contrast microscopic imaging system and imaging method thereof |
CN110955039B (en) * | 2019-11-15 | 2022-10-14 | 上海安翰医疗技术有限公司 | Phase contrast microscopic imaging system and imaging method thereof |
KR20230053323A (en) * | 2021-10-14 | 2023-04-21 | 울산과학기술원 | Apparatus, method, computer-readable storage medium and computer program for image acquisition based on enhancement of maximum contrast ratio |
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KR101350214B1 (en) | 2012-07-06 | 2014-01-16 | 주식회사 미르기술 | Noncontact inspecting apparatus for light emitting diode and method thereof |
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KR101350214B1 (en) | 2012-07-06 | 2014-01-16 | 주식회사 미르기술 | Noncontact inspecting apparatus for light emitting diode and method thereof |
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