CN114577065A - Excitation source for infrared scene simulation, simulation device and simulation method - Google Patents
Excitation source for infrared scene simulation, simulation device and simulation method Download PDFInfo
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- 238000004088 simulation Methods 0.000 title claims abstract description 76
- 230000005284 excitation Effects 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000003384 imaging method Methods 0.000 claims abstract description 58
- 230000005855 radiation Effects 0.000 claims abstract description 34
- 230000003287 optical effect Effects 0.000 claims description 15
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- 239000000463 material Substances 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
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- 238000002834 transmittance Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 5
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G3/00—Aiming or laying means
- F41G3/32—Devices for testing or checking
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
- G02B27/0961—Lens arrays
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Abstract
The invention provides an excitation source, a simulation device and a simulation method for infrared scene simulation. The excitation source includes: the device comprises a laser, a collimation unit, a digital micromirror array and an imaging unit; wherein the laser is used for outputting laser light and providing the laser light to the collimation unit; the collimation unit is used for receiving the laser and outputting parallel light; the digital micro-mirror array is used for receiving the parallel light, generating a corresponding image and reflecting the image to the imaging unit; the imaging unit is used for projecting the image onto the micro radiation array so that the micro radiation array generates a corresponding infrared scene according to the image. By using the excitation source for infrared scene simulation disclosed by the invention, the laser light source is used as the excitation source of the micro-radiation array, so that the excitation energy can be effectively improved, the light energy with enough strength can be used for infrared dynamic scene simulation, the signal-to-noise ratio of subsequent infrared simulation tests is improved, the simulation error can be effectively reduced, the simulation precision is improved, and the uniformity is improved.
Description
Technical Field
The invention relates to the technical field of optical simulation tests, in particular to an excitation source, a simulation device and a simulation method for infrared scene simulation.
Background
At present, in the field of national defense, infrared imagers are widely applied to various national major model systems such as an accurate guided weapon system, a space reconnaissance system, a near space early warning system, a satellite-borne infrared remote sensing system and the like, and with the continuous improvement of relevant models and tactical requirements, in order to improve the anti-interference capability of the infrared imagers, the infrared imagers are adapted to complex battlefield environments and improve the combat effectiveness, a large number of simulation verification tests are required, and therefore, the requirements on high-dynamic, high-resolution and large-dynamic-range infrared scene simulation technologies of the complex battlefield environments are more and more urgent.
In foreign countries, an infrared dynamic scene simulator is generally adopted to simulate complex battlefield environments, test and simulate the performance of an infrared imager, can realize the simulation of various interference factors, multiple targets, complex battlefield environments and the like, can realize the simulation of real battlefield environments in laboratories, reduces the times of field tests, saves research expenses, and improves the complex battlefield environment adaptability of an accurate guided weapon system with higher cost-effectiveness ratio.
However, the infrared dynamic scene simulator in the prior art has poor illumination uniformity, so that the subsequent simulation test precision is reduced, and the dynamic range of the infrared dynamic scene simulator is small.
Disclosure of Invention
In view of the above-mentioned problems of low energy and poor uniformity of the existing micro radiation array excitation source, which result in the degradation of the precision of the subsequent simulation test, the present invention is proposed to provide an excitation source, a simulation apparatus and a simulation method for infrared scene simulation, which overcome the above-mentioned problems or at least partially solve the above-mentioned problems.
According to an aspect of the present invention, there is provided an excitation source for infrared scene simulation, comprising: the device comprises a laser, a collimation unit, a digital micromirror array and an imaging unit; wherein the content of the first and second substances,
the laser is used for outputting laser light and providing the laser light to the collimation unit;
the collimation unit is used for receiving the laser and outputting parallel light;
the digital micro-mirror array is used for receiving the parallel light, generating a corresponding image and providing the image into the imaging unit;
the imaging unit is used for projecting the image onto the micro radiation array so that the micro radiation array generates a corresponding infrared scene according to the image.
Preferably, the excitation source further comprises: and an optical fiber through which the laser light is output, the optical fiber having a core diameter of 200 μm.
Preferably, the wavelength range of the laser is 0.9-10.6 μm, and the power range is 1 mW-300W.
Preferably, the laser is a high-power laser, and the output laser power of the high-power laser is 300W.
Preferably, the focal length range of the collimation unit and the imaging unit is 1 mm-500 mm, and the aperture range is 1 mm-500 mm.
Preferably, the materials of the collimation unit and the imaging unit comprise crown glass K9 and heavy flint glass ZF 7.
Preferably, the collimating unit and the imaging unit each include: the transmittance of the antireflection film in a wave band of 0.9-1.0 μm is more than 99%.
Preferably, the excitation source further comprises: and the processing unit is used for controlling the digital micromirror array to turn so that the digital micromirror array generates a corresponding image after receiving the parallel light.
According to another aspect of the present invention, there is provided a simulation apparatus for infrared scene simulation, comprising: the infrared imaging system comprises a micro radiation array, a laser reflection infrared transmitting panel, an infrared collimating optical system and an excitation source as described in any one of the above items, wherein the laser reflection infrared transmitting panel is used for reflecting an image projected by an imaging unit onto the micro radiation array so that the micro radiation array generates a corresponding infrared scene according to the image; the anti-laser infrared-transmitting flat plate is also used for providing an infrared scene emitted by the micro-radiation array to the infrared collimating optical system and providing the infrared scene to a measured imager by the infrared collimating optical system.
In accordance with another aspect of the present invention, there is provided a simulation method for infrared scene simulation, comprising:
the laser provides the output laser to the collimation unit, and then the collimation unit outputs parallel light to the digital micromirror array;
the digital micromirror array receives the parallel light to generate a corresponding image and provides the image to an imaging unit;
the imaging unit projects the image onto the micro radiation array so that the micro radiation array generates a corresponding infrared scene according to the image.
The excitation source, the simulation device and the simulation method for infrared scene simulation provide enough energy for subsequent simulation tests to achieve a sufficient dynamic range, reduce measurement errors and improve measurement accuracy.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an excitation source for infrared scene simulation according to an embodiment of the present invention;
FIG. 2 is a schematic partial structural diagram of an excitation source for infrared scene simulation according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a collimator lens according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of an imaging lens according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of another excitation source for infrared scene simulation according to an embodiment of the present invention;
FIG. 6 is a flowchart of a method for infrared scene simulation according to an embodiment of the present invention;
fig. 7 is a flowchart of a method for infrared scene simulation according to another embodiment of the present invention.
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. 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.
An embodiment of the present invention provides an excitation source for infrared scene simulation, as shown in fig. 1, where the excitation source 10 includes: a laser 101, a collimating unit 102, a digital micro-mirror array 103, and an imaging unit 104; wherein the content of the first and second substances,
the laser 101 is used for outputting laser light and providing the laser light to the collimation unit 102;
the collimating unit 102 is configured to receive the laser light and output parallel light;
the digital micro mirror array 103 is used for receiving the parallel light, generating a corresponding image and providing the image into the imaging unit 104;
the imaging unit 104 is configured to project the image onto the micro radiation array 106 so that the micro radiation array generates a corresponding infrared scene according to the image.
By using the excitation source of the embodiment of the invention, the laser light source is used as the excitation source of the micro-radiation array, so that the excitation energy can be effectively improved, enough light energy can be used for infrared dynamic scene simulation, the signal-to-noise ratio of subsequent infrared simulation tests can be improved, the simulation error can be effectively reduced, the simulation precision can be improved, and the uniformity can be improved.
In a particular embodiment, the excitation source, i.e., the excitation port, is a boundary condition that allows energy to flow into and out of the structure. The excitation source in the present invention is used to provide a reflected image projection to the micro-radiation array to create an infrared scene simulating some complex environments. The excitation source is fixed in front of the micro radiation array for use, wherein the laser is a semiconductor laser, which is also called a laser diode and uses a semiconductor material as a working substance. The operating principle is that the population inversion of non-equilibrium carriers is realized between the energy bands (conduction band and valence band) of the semiconductor substance or between the energy bands of the semiconductor substance and the energy levels of impurities (acceptor or donor) through a certain excitation mode, and when a large number of electrons in the population inversion state are combined with holes, the stimulated emission effect is generated. The semiconductor laser in the embodiment of the invention can output continuous pulse laser.
In the embodiment of the invention, laser light output by one laser, namely laser energy, passes through the collimation unit to form parallel light and output. The collimating unit can be a set of collimating lenses similar to a convex lens, and the divergent light output by the laser is illuminated on a digital micromirror array through the parallel light changed by the collimating lenses, and the corresponding image is generated by the digital micromirror array turning. Specifically, the corresponding image is an image required by an infrared scene to be simulated, the digital micromirror array generates corresponding light according to the image and reflects the light into the imaging unit, and the imaging unit projects the image onto the micro radiation array according to the received light. The imaging unit may be a group of imaging lenses. And illuminating the micro radiation array through the reflected light rays so that the micro radiation array generates a corresponding infrared scene according to the image corresponding to the light rays.
Preferably, as shown in fig. 2, the excitation source for infrared scene simulation further includes: and an optical fiber 105 through which the laser light is output, the optical fiber having a core diameter of 200 μm. Through the arrangement of the optical fibers, laser can have a small light emitting area through the output of the optical fibers, and parallel light with a small field angle can be generated by matching with the collimation unit to illuminate the digital micromirror array.
The excitation source for infrared scene simulation provided by the embodiment of the invention is preferably, the wavelength range of the laser is 0.9-10.6 μm, and the power range is as follows: 1 mW-300W. In the preferred embodiment, the wavelength is 915 nm. Suitable wavelength ranges and power ranges enable the excitation source in embodiments of the present invention to provide sufficiently strong excitation energy such that light energy is effective for simulation of infrared dynamic scenes.
The excitation source for infrared scene simulation provided by the embodiment of the invention is preferably a high-power laser, and the output laser power of the high-power laser is larger and can be 300W, so that the output laser power can reach the maximum value of a power range.
According to the excitation source for infrared scene simulation provided by the embodiment of the invention, preferably, the focal length range of the collimation unit and the imaging unit is 1 mm-500 mm, and the aperture range is 1 mm-500 mm. In a specific embodiment, although the focal length range of the imaging unit and the focal length range of the collimating unit are in the same interval, the focal length range and the aperture range of the collimating lens and the imaging lens are not identical, that is, the focal length range and the aperture range of the collimating lens and the imaging lens may be the same or different, and the focal length range and the aperture range may be determined as needed. Wherein the imaging unit is arranged substantially parallel to the micro radiation array 106.
In a preferred embodiment, the aperture of the collimating lens is 30mm, the focal length is 500mm, the aperture of the imaging lens is 50mm, and the focal length is 45 mm. The high-power divergent laser output by the optical fiber can be collimated into parallel light through the collimating unit, the parallel light is used for illuminating the digital micromirror array, and an image of the digital microcrystal array is projected onto the micro radiation array through the imaging unit, so that a laser scene is generated on the micro radiation array.
In a preferred embodiment, the resolution of the digital microcrystal array is 1024 × 768-1920 × 1080, and a clearer image can be provided by the digital microcrystal array with higher resolution for later use in scene simulation.
In a preferred embodiment, as shown in fig. 3, the collimating unit is composed of a set of collimating lenses, and a single lens or a plurality of lenses can be stacked in a set of collimating lenses. In the embodiment of the present invention, a set of collimating lenses is formed by sequentially arranging the lenses 301, 302 and 303 in the figure, and the lenses 301, 302 and 303 are used as a whole, and a single lens has no meaning, and only 3 lenses have meaning and produce effects at the same time. Preferably, the lenses 301, 302 and 303 are coaxially arranged to avoid errors when the lenses are stacked together for use. The distance between the 3 lenses is determined according to the requirement, and is not limited in this embodiment. The lenses 301 and 302 are meniscus convex lenses, the lens 303 is a meniscus concave lens, and the thick edge in the middle of the lens 302 is thin.
In a preferred embodiment, as shown in fig. 4, the imaging unit is composed of a set of imaging lenses, and a set of imaging lenses may be a single lens or a stack of lenses. In the embodiment of the present invention, a group of imaging lenses is formed by sequentially arranging lenses 401, 402, 403, 404, and 405 in the figure. And the lenses 401, 402, 403, 404 and 405 are used as a whole, there is no meaning for a single lens, only for 5 lenses at the same time. Preferably, the lenses 401, 402, 403, 404 and 405 are coaxially disposed, wherein the distance between the 5 lenses is determined according to the requirement, and further the embodiment is not limited thereto.
In the excitation source for infrared scene simulation provided by the embodiment of the invention, preferably, the materials of the collimating unit and the imaging unit both include K9 and ZF7, that is, the materials of the collimating unit and the imaging unit include a mixture of K9 and ZF7, and by adopting K9 and ZF7, spherical aberration can be eliminated, so that the collimation of the optical system is better. Wherein ZF represents heavy flint glass in colorless optical glass, K is crown glass, and related refractive index and dispersion parameters of the crown glass are known quantities; preferably, the mixing ratio of K9 and ZF7 is subject to practical requirements, and is not limited herein. The mirror plates 401, 404, and 405 are each a biconvex lens, and the mirror plates 402 and 403 are each a meniscus concave lens.
According to the excitation source for infrared scene simulation provided by the embodiment of the invention, preferably, all mirror surfaces of the collimation unit and the imaging unit are plated with the antireflection film, and the transmittance of the antireflection film in a wave band of 0.9-1.0 μm is more than 99%, so that laser with the wavelength of 0.9-1.0 μm can be further selected to pass through the antireflection film.
The excitation source for infrared scene simulation provided by the embodiment of the present invention, preferably, the excitation source further includes: and the processing unit is used for controlling the digital micromirror array to turn so that the digital micromirror array generates a corresponding image after receiving the parallel light.
An embodiment of the present invention further provides a simulation apparatus for infrared scene simulation, as shown in fig. 5, including: a micro-radiation array 50, a laser-reflective infrared-transmitting plate 51, an infrared collimating optical system 52, and an excitation source 53 as described in any of the above embodiments. The anti-laser infrared-transmitting panel 51 is used for reflecting the image projected by the imaging unit onto the micro-radiation array 50 so that the micro-radiation array 50 generates a corresponding infrared scene according to the image; the anti-laser infrared-transmitting panel 51 is further configured to provide the infrared scene emitted by the micro-radiation array 50 to the infrared collimating optical system 52, and provide the infrared scene to the measured imager 54 through the infrared collimating optical system 52.
In a specific embodiment of the present invention, still taking fig. 5 as an example, the excitation source 53 is used as a whole, wherein the excitation source 53 includes: a laser 531, a collimating unit 532, a digital micromirror array 533, and an imaging unit 534. Laser energy output by the laser 531 via the optical fiber forms parallel light after passing through the collimating unit 532, and the collimating unit 532 may be a set of collimating lenses. The collimated light output by the collimating lens is illuminated on the digital micromirror array 533, and is flipped by the digital micromirror array 533 to generate a corresponding image. Specifically, the corresponding image is an image required by the infrared scene to be simulated, the digital micromirror array 533 generates corresponding light according to the image and reflects the light into the imaging unit 534, and the imaging unit 534 projects the image onto the micro-radiation array 50. The imaging unit 534 may be a set of imaging lenses. Specifically, the position relationship between the imaging unit 534 and the micro radiation array 50 in this embodiment is different from the parallel arrangement described in the embodiment of fig. 1, but the imaging unit 534 and the micro radiation array 50 form an arbitrary angle or are arranged arbitrarily without any regular orientation, and the image projected by the imaging unit 534 is reflected onto the micro radiation array 50 through the anti-laser infrared-transmitting panel 51 located in front of the imaging unit 534 so that the micro radiation array 50 generates a corresponding infrared scene according to the image; the anti-laser infrared-transmitting panel 51 further provides the infrared scene emitted by the micro-radiation array 50 to the infrared collimating optical system 52, and provides the infrared scene to the measured imager 54 through the infrared collimating optical system 52.
An embodiment of the present invention further provides a simulation method for infrared scene simulation, as shown in fig. 6, including:
In a preferred embodiment, the method further comprises: and controlling the digital micromirror array to turn over through a processing unit so that the digital micromirror array generates a corresponding image after receiving the parallel light.
The embodiment of the present invention further provides a simulation method for infrared scene simulation, as shown in fig. 7, including the following steps:
By using the excitation source of the embodiment of the invention, the laser light source is used as the excitation source of the micro-radiation array, so that the excitation energy can be effectively improved, enough light energy can be used for infrared dynamic scene simulation, the signal-to-noise ratio of subsequent infrared simulation tests can be improved, the simulation error can be effectively reduced, the simulation precision can be improved, and the uniformity can be improved.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
It should also be understood that, in the embodiment of the present invention, the term "and/or" is only one kind of association relation describing an associated object, and means that three kinds of relations may exist. For example, a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. An excitation source for infrared scene simulation, comprising: the device comprises a laser, a collimation unit, a digital micromirror array and an imaging unit; wherein the content of the first and second substances,
the laser is used for outputting laser light and providing the laser light to the collimation unit;
the collimation unit is used for receiving the laser and outputting parallel light;
the digital micro-mirror array is used for receiving the parallel light, generating a corresponding image and providing the image into the imaging unit;
the imaging unit is used for projecting the image onto the micro radiation array so that the micro radiation array generates a corresponding infrared scene according to the image.
2. The excitation source for infrared scene simulation of claim 1, further comprising: and an optical fiber through which the laser light is output, the optical fiber having a core diameter of 200 μm.
3. The excitation source for infrared scene simulation according to claim 1, wherein the laser has a wavelength ranging from 0.9 μm to 10.6 μm and a power ranging from 1mW to 300W.
4. The excitation source for infrared scene simulation according to claim 3, wherein the laser is a high power laser, and the output laser power of the high power laser is 300W.
5. The excitation source for infrared scene simulation according to claim 1, wherein the focal length of the collimating unit and the imaging unit ranges from 1mm to 500mm, and the aperture ranges from 1mm to 500 mm.
6. An excitation source for infrared scene simulation according to claim 1, characterized in that the material of the collimating unit and the imaging unit each comprise crown glass K9 and flint glass ZF 7.
7. An excitation source for infrared scene simulation according to claim 6, wherein the collimating unit and the imaging unit each comprise: the transmittance of the antireflection film in a wave band of 0.9-1.0 μm is more than 99%.
8. The excitation source for infrared scene simulation of claim 1, further comprising: and the processing unit is used for controlling the digital micromirror array to turn so that the digital micromirror array generates a corresponding image after receiving the parallel light.
9. A simulation apparatus for infrared scene simulation, comprising: a micro radiation array, a laser-reflective infrared transmitting plate, an infrared collimating optical system, and the excitation source according to any one of claims 1 to 8, wherein the laser-reflective infrared transmitting plate is used for reflecting the image projected by the imaging unit onto the micro radiation array so that the micro radiation array generates a corresponding infrared scene according to the image; the anti-laser infrared-transmitting flat plate is also used for providing an infrared scene emitted by the micro-radiation array to the infrared collimating optical system and providing the infrared scene to a measured imager by the infrared collimating optical system.
10. A simulation method for infrared scene simulation, comprising:
the laser provides the output laser to the collimation unit, and then the collimation unit outputs parallel light to the digital micromirror array;
the digital micromirror array receives the parallel light to generate a corresponding image and provides the image to an imaging unit;
the imaging unit projects the image onto the micro radiation array so that the micro radiation array generates a corresponding infrared scene according to the image.
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