CN110646097A - Human body three-dimensional thermal imaging device - Google Patents

Human body three-dimensional thermal imaging device Download PDF

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Publication number
CN110646097A
CN110646097A CN201911018028.7A CN201911018028A CN110646097A CN 110646097 A CN110646097 A CN 110646097A CN 201911018028 A CN201911018028 A CN 201911018028A CN 110646097 A CN110646097 A CN 110646097A
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China
Prior art keywords
human body
thermal imaging
detector
visible light
chassis
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CN201911018028.7A
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Chinese (zh)
Inventor
马林玲
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Nanjing Hongshi Film And Television Media Co Ltd
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Nanjing Hongshi Film And Television Media Co Ltd
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Priority to CN201911018028.7A priority Critical patent/CN110646097A/en
Publication of CN110646097A publication Critical patent/CN110646097A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0022Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
    • G01J5/0025Living bodies
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02Constructional details
    • G01J5/0205Mechanical elements; Supports for optical elements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J2005/0077Imaging

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Radiation Pyrometers (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

The invention discloses a human body three-dimensional thermal imaging device, which comprises: a chassis; the upright post bracket is fixedly connected to one side of the chassis; the annular support is fixedly connected to one side of the upright post support and is positioned right above the chassis; six double-color detectors are arranged; the invention utilizes the advantages of high resolution and obvious characteristics of visible light images to obtain a high-precision human body three-dimensional model; the infrared detector is adopted to obtain the heat distribution information of the human body, the characteristics of one-to-one correspondence between the visible light images and the thermal imaging images are utilized to obtain a more accurate human body three-dimensional thermal imaging model, and meanwhile, because the scheme does not adopt a mobile scanning scheme, all the images can be collected at the same time, the modeling error caused by the movement of the human body and the change of heat is avoided, and even the thermal imaging modeling can still be carried out under the condition that the human body has small movement.

Description

Human body three-dimensional thermal imaging device
Technical Field
The invention belongs to the technical field of thermal imaging, and particularly relates to a human body three-dimensional thermal imaging device.
Background
The human body is a natural source of infrared radiation that continuously radiates infrared radiant energy into the surrounding space. The infrared radiation wave band is between 5 microns and 50 microns, and the peak value is near 8 microns to 13 microns. When a human body suffers from a disease, the systemic or local heat balance of the human body is destroyed, and the temperature of human tissues is increased or decreased in clinical practice. Therefore, the measurement of the change of the body temperature is an important index for clinical medical diagnosis of diseases.
Medical imaging devices, such as X-ray machines, Computed Tomography (CT), magnetic resonance (MIR), Positron Emission Tomography (PET), etc., have been widely used to probe and analyze lesions in the human body. These instruments belong to active emitting devices, have strong ionizing radiation or high-intensity magnetic field radiation, and are easy to damage human bodies through multiple times of high-dose examination. The infrared thermal imaging technology is a new medical imaging device developed along with the gradual popularization of the medium/long wave infrared area array detection technology. The passive type imaging device does not actively emit high-energy rays or a high-intensity magnetic field, detects through heat radiation naturally emitted by a human body, belongs to a passive type imaging device, and can carry out repeated detection without causing harm to the human body.
In medical application, accurate judgment of a focus requires imaging to have the characteristic of high resolution, and the imaging range can cover the whole body. Moreover, due to the special characteristics of the thermal imaging technology, the patient needs to be kept still as much as possible during imaging, and the thermal noise generated by movement is prevented from influencing the imaging quality. Patent CN100502767C "medical thermal chromatography imaging system" discloses a thermal imaging device which moves human body for scanning through a motor and a gear transmission device; patent CN103315716B "infrared stereoscopic thermal imaging scanning system" discloses a thermal imaging device that adopts a lifter to move up and down and simultaneously rotate a plurality of area array infrared thermal sensors; patent CN108523857A "a scanning method and device for measuring radiation temperature on body surface of human body" discloses a device for scanning human body by moving an area array infrared sensor; US8811692B2 SYSTEMAND METHOD FOR USING THREE DIMIENSIONAL INFRARED IMAGING FOR LIBRARIESOF STANDARDZED MEDICAL IMAGERY discloses a body scanning device employing both a thermal radiation sensor/3D image sensor and other image sensors; THE patent US8923954B2 "THREE-DIMINISIONAL THERMALANGING FOR THE DETECTION OF SKIN LESIONS AND OTHER NATURAL AND ABNORMALCONDITIONS" discloses a device FOR imaging by deploying a plurality OF fixed infrared thermal radiation sensors around THE human body; patent CN2681680Y discloses a mobile thermal tomography imaging device, which adopts a plurality of telescopic boxes to form a simple examination room, and installs a guide rail and a guide groove on the box to move and scan the scanning head, and the lower part of the box has a roller to facilitate the movement. The thermal imaging device has a complex structure, has a plurality of movable scanning components, and cannot form three-dimensional thermal imaging data of a human body, and therefore, the three-dimensional thermal imaging device for the human body is provided.
Disclosure of Invention
The present invention provides a human body three-dimensional thermal imaging device to solve the problem of thermal imaging without moving as proposed in the background art.
In order to achieve the purpose, the invention adopts the following technical scheme: a three-dimensional thermal imaging apparatus for a human body, comprising:
a chassis;
the upright post bracket is fixedly connected to one side of the chassis;
the annular support is fixedly connected to one side of the upright post support and is positioned right above the chassis;
six double-color detectors are arranged, and the six double-color detectors are symmetrically arranged on the inner side wall of the annular bracket;
the double-color detector comprises a visible light detector, an infrared detector, a visible light wide-angle lens and an infrared wide-angle lens.
Preferably: six guide rails matched with the double-color detector are installed on the inner side wall of the annular support, and the double-color detector is located on the guide rails.
Preferably: the center of the upper surface of the base plate is fixedly connected with a positioning plate.
Preferably: the vertical distance between the lower surface of the annular support and the base plate is 2m, the diameter of the base plate is 3m, and the diameter of the positioning plate is 0.4 m.
Preferably: the diameter of an inner ring of the annular support is 1.3m, the diameter of the minimum outer ring of the annular support is.m, the double-color detector is located at the position where the diameter of the annular support is 1.5m, and the vertical distance between the lower surface of the double-color detector and the chassis is 2 m.
Preferably: the included angle between two adjacent bicolor detectors is 50-80 degrees.
Preferably: the visible light wide-angle lens is arranged at a probe of the visible light detector.
Preferably: the infrared wide-angle lens is arranged at the probe of the infrared detector.
Preferably: the visible light wide-angle lens of the visible light detector consists of quartz, glass or polymer; the infrared wide-angle lens of the infrared detector is made of any one of calcium fluoride glass or germanium glass.
Preferably: six optical windows are installed on the inner side wall of the annular support.
The invention has the technical effects and advantages that: compared with the prior art, the human body three-dimensional thermal imaging device provided by the invention has the following advantages:
two adjacent double-color detectors in the annular support form a binocular three-dimensional thermal imaging system, and for one binocular three-dimensional thermal imaging system, one-time shooting can form two images including two visible light images and two thermal imaging images; because the lens and the area array detection of the device are designed in a wide-angle imaging mode, the image of the whole body of the human body can be obtained by reasonably designing the height of the annular bracket, the radius of a circular ring where the double-color detector is positioned, the inclination angle of the double-color detector and the mutual included angle of the double-color detector;
secondly, extracting characteristic points in the two visible light images, performing characteristic matching and performing three-dimensional reconstruction on the human body model to obtain a human body image with three-dimensional space information, and splicing the obtained three-dimensional human body visible light image models at multiple angles for a plurality of groups of binocular three-dimensional thermal imaging systems to obtain an omnibearing human body visible light three-dimensional model; because the thermal imaging image and the visible light image are simultaneously acquired and the acquisition directions are very similar, the thermal imaging images are correspondingly distributed on the human body three-dimensional model one by one according to the distribution of the pixels of the visible light image on the human body three-dimensional model, and the human body three-dimensional thermal imaging model is obtained;
thirdly, the invention obtains a high-precision human body three-dimensional model by utilizing the advantages of high resolution and obvious characteristics of the visible light image; the infrared detector is adopted to obtain the heat distribution information of the human body, the characteristics of one-to-one correspondence between the visible light images and the thermal imaging images are utilized to obtain a more accurate human body three-dimensional thermal imaging model, and meanwhile, because the scheme does not adopt a mobile scanning scheme, all the images can be collected at the same time, the modeling error caused by the movement of the human body and the change of heat is avoided, and even the thermal imaging modeling can still be carried out under the condition that the human body has small movement.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the ring support structure of the present invention;
FIG. 3 is a schematic diagram of a dual color detector of the present invention;
FIG. 4 is a schematic bottom view of the bi-color detector of the present invention;
FIG. 5 is a perspective view of the toroidal support of the present invention;
FIG. 6 is a generated image of a bi-color detector of the present invention.
In the figure: 1. a chassis; 2. a column support; 3. an annular support; 4. a two-color detector; 41. a visible light detector; 42. an infrared detector; 43. a visible light wide-angle lens; 44. an infrared wide-angle lens; 5. positioning a plate; 6. a guide rail; 7. an optical window.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention provides a human body three-dimensional thermal imaging apparatus as shown in fig. 1 to 4, comprising:
a chassis 1;
the upright post bracket 2 is fixedly connected to one side of the chassis 1;
the annular support 3 is fixedly connected to one side of the upright post support 2, and the annular support 3 is positioned right above the chassis 1;
six double-color detectors 4 are arranged, and the six double-color detectors 4 are symmetrically arranged on the inner side wall of the annular bracket 3;
the two-color detector 4 includes a visible light detector 41, an infrared detector 42, a visible light wide-angle lens 43, and an infrared wide-angle lens 44.
In this embodiment, specifically: six guide rails 6 matched with the two-color detector 4 are arranged on the inner side wall of the annular support 3, and the two-color detector 4 is positioned on the guide rails 6; the double-color detector 4 is arranged on a guide rail 6 inside the annular support 3, can move along the guide rail 6 and can move back and forth, and for patients with high height, the position of the detector can be moved to obtain larger field area.
In this embodiment, specifically: the center of the upper surface of the chassis 1 is fixedly connected with a positioning disc 5; by arranging the positioning disc 5, the imaging place can be prompted for the person to be imaged, so that the person to be imaged can accurately determine the standing position of the person to be imaged.
In this embodiment, specifically: the vertical distance between the lower surface of the annular support 3 and the base plate 1 is 2m, the diameter of the base plate 1 is 3m, and the diameter of the positioning plate 5 is 0.4 m.
In this embodiment, specifically: the diameter of an inner ring of the annular support 3 is 1.3m, the diameter of the minimum outer ring is 2.2m, the two-color detector 4 is positioned at the position where the diameter of the annular support 3 is 1.5m, and the vertical distance between the lower surface of the two-color detector 4 and the chassis 1 is 2 m.
In this embodiment, specifically: the included angle between two adjacent two-color detectors 4 is 50-80 degrees; according to the binocular vision imaging principle, when the included angle between two adjacent bicolor detectors 4 is 50-80 degrees, the image reconstruction effect is good.
In this embodiment, specifically: a visible light wide-angle lens 43 is installed at the probe of the visible light detector 41; the visible light wide-angle lens 43 may increase the detection wide angle of the visible light detector 41.
In this embodiment, specifically: an infrared wide-angle lens 44 is installed at the probe of the infrared detector 42; the infrared wide-angle lens 44 may increase the detection wide angle of the infrared detector 42.
In this embodiment, specifically: the visible wide-angle lens 43 of the visible light detector 41 is made of quartz, glass or polymer; the material of the infrared wide-angle lens 44 of the infrared detector 42 is any one of calcium fluoride glass or germanium glass.
In this embodiment, specifically: six optical windows 7 are installed on the inner side wall of the annular support 3, and visible light and infrared light can penetrate through the windows.
In this embodiment: the visible light detector 41 is located above the infrared detector 42, and may be arranged in the opposite direction.
In this embodiment: two adjacent double-color detectors 4 in the annular support 3 form a binocular three-dimensional thermal imaging system, and for one binocular three-dimensional thermal imaging system, four images including two visible light images and two thermal imaging images can be formed by one-time shooting; because the camera lens and the area array of this device survey and design for wide angle imaging mode, through the height of rational design ring carrier 3, the ring radius that double-color detector 4 is located, the inclination of double-color detector 4 and the mutual contained angle of double-color detector 4, can obtain the whole body image of human, for solving because the detector overlooks and the image deformation that the wide-angle camera lens caused, can adopt digital correction algorithm to correct the image, digital correction algorithm is prior art, does not do here and give unnecessary details.
The method comprises the steps of extracting characteristic points in two visible light images, performing characteristic matching and performing three-dimensional reconstruction on a human body model to obtain a human body image with three-dimensional space information, and splicing the obtained three-dimensional human body visible light image models at multiple angles for a plurality of groups of binocular three-dimensional thermal imaging systems to obtain an omnibearing human body visible light three-dimensional model; because the thermal imaging image and the visible light image are simultaneously acquired and the acquisition directions are very similar, the thermal imaging images are correspondingly distributed on the human body three-dimensional model one by one according to the distribution of the pixels of the visible light image on the human body three-dimensional model, and the human body three-dimensional thermal imaging model is obtained.
In this embodiment: because the pixels of the existing infrared area array detector are low, and the characteristics of the human thermal image are far less than those of the visible light image, the effect of directly adopting the binocular thermal imaging image to carry out human body modeling is poor, the invention utilizes the advantages of high resolution and obvious characteristics of the visible light image to obtain a high-precision human body three-dimensional model; adopt infrared detector 42 to obtain human heat distribution information to utilize the characteristics of visible light image and thermal imaging image one-to-one, obtain more accurate human three-dimensional thermal imaging model, simultaneously, because this scheme does not adopt the scheme of removal scanning, all images can be gathered simultaneously, avoid because the modeling error that human removal, heat change caused, still can carry out thermal imaging modeling even under the human condition that has little removal.
In this embodiment: the two-color detector 4 of the present invention is composed of a visible light detector 41 and an infrared detector 42 arranged up and down. The visible light detector 41 adopts a high-resolution area array CCD (e.g. 2000 ten thousand pixels, resolution 8192x2457), and the infrared detector 42 adopts a non-refrigeration vanadium oxide or polysilicon detector (e.g. 80 ten thousand pixels, resolution 512x 1536). The area array detector adopts a specially-made rectangular area array, the horizontal width is small, the vertical width is large, and the relationship is 1:3 in the embodiment, so that the imaging of a human body standing at the center of a circle is 1:3, avoiding waste caused by too many transverse pixels.
The working principle is as follows: during imaging, a person to be imaged stands on the positioning disc 5, then a human body is imaged by using the two-color detector 4, then characteristic points in two visible light images are extracted, characteristic matching is carried out, three-dimensional reconstruction of a human body model is carried out, a human body image with three-dimensional space information can be obtained, and for a plurality of groups of binocular three-dimensional thermal imaging systems, the obtained three-dimensional human body visible light image models at a plurality of angles are spliced, so that an omnibearing human body visible light three-dimensional model can be obtained; because the thermal imaging image and the visible light image are simultaneously acquired and the acquisition directions are very similar, the thermal imaging images are correspondingly distributed on the human body three-dimensional model one by one according to the distribution of the pixels of the visible light image on the human body three-dimensional model, and the human body three-dimensional thermal imaging model is obtained.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (10)

1. A human body three-dimensional thermal imaging device is characterized in that: the method comprises the following steps:
a chassis (1);
the stand column bracket (2), the stand column bracket (2) is fixedly connected to one side of the chassis (1);
the annular support (3) is fixedly connected to one side of the upright post support (2), and the annular support (3) is positioned right above the chassis (1);
six double-color detectors (4) are arranged, and the six double-color detectors (4) are symmetrically arranged on the inner side wall of the annular support (3);
the double-color detector (4) comprises a visible light detector (41), an infrared detector (42), a visible light wide-angle lens (43) and an infrared wide-angle lens (44).
2. The three-dimensional thermal imaging apparatus for human body according to claim 1, wherein: six and guide rail (6) of double-color detector (4) looks adaptation are installed to the inside wall of ring carrier (3), double-color detector (4) are located on guide rail (6).
3. The three-dimensional thermal imaging apparatus for human body according to claim 1, wherein: the center of the upper surface of the chassis (1) is fixedly connected with a positioning disc (5).
4. The three-dimensional thermal imaging apparatus for human body according to claim 3, wherein: the vertical distance between the lower surface of the annular support (3) and the chassis (1) is 2m, the diameter of the chassis (1) is 3m, and the diameter of the positioning disc (5) is 0.4 m.
5. The three-dimensional thermal imaging apparatus for human body according to claim 1, wherein: the diameter of an inner ring of the annular support (3) is 1.3m, the diameter of a minimum outer ring of the annular support is 2.2m, the diameter of the annular support (3) where the two-color detector (4) is located is 1.5m, and the vertical distance between the lower surface of the two-color detector (4) and the chassis (1) is 2 m.
6. The three-dimensional thermal imaging apparatus for human body according to claim 1, wherein: the included angle between two adjacent bicolor detectors (4) is 50-80 degrees.
7. The three-dimensional thermal imaging apparatus for human body according to claim 1, wherein: the visible light wide-angle lens (43) is installed at the probe of the visible light detector (41).
8. The three-dimensional thermal imaging apparatus for human body according to claim 1, wherein: the infrared wide-angle lens (44) is installed at the probe of the infrared detector (42).
9. The three-dimensional thermal imaging apparatus for human body according to claim 1, wherein: the visible wide-angle lens (43) of the visible light detector (41) is made of quartz, glass or polymer; the infrared wide-angle lens (44) of the infrared detector (42) is made of any one of calcium fluoride glass or germanium glass.
10. The three-dimensional thermal imaging apparatus for human body according to claim 1, wherein: six optical windows (7) are installed on the inner side wall of the annular support (3).
CN201911018028.7A 2019-10-24 2019-10-24 Human body three-dimensional thermal imaging device Pending CN110646097A (en)

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Application Number Priority Date Filing Date Title
CN201911018028.7A CN110646097A (en) 2019-10-24 2019-10-24 Human body three-dimensional thermal imaging device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111696307A (en) * 2020-06-10 2020-09-22 深圳泽保智能科技有限公司 Optical detection device for detecting fire
CN112353679A (en) * 2020-10-12 2021-02-12 济南市第五人民医院 Infrared visual gynaecology fumigation treatment equipment
CN114869242A (en) * 2022-07-12 2022-08-09 吉林大学 Experimental animals cardiopulmonary exercise function detection device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111696307A (en) * 2020-06-10 2020-09-22 深圳泽保智能科技有限公司 Optical detection device for detecting fire
CN112353679A (en) * 2020-10-12 2021-02-12 济南市第五人民医院 Infrared visual gynaecology fumigation treatment equipment
CN112353679B (en) * 2020-10-12 2023-01-17 济南市第五人民医院 Infrared visual gynaecology fumigation treatment equipment
CN114869242A (en) * 2022-07-12 2022-08-09 吉林大学 Experimental animals cardiopulmonary exercise function detection device
CN114869242B (en) * 2022-07-12 2022-09-27 吉林大学 Experimental animal cardiopulmonary movement function detection device

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