High-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling simulation method and device

Abstract

The invention discloses a high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling simulation method and device, and relates to the technical field of computer simulation, and the method comprises the steps: obtaining the scene information of a sea-sky scene three-dimensional model in each frame according to a preset time interval; converting the current sea spectrum into an ocean grid height field so as to determine the position and the property of the ocean water body micro surface element; establishing a full-link sea-sky scene infrared radiation link transmission model according to the position and the property of the ocean water body micro surface element; the full-link sea-sky scene infrared radiation link transmission model is used for describing the transmission process that radiation energy starts from a target or background radiation source and reaches a detector after being attenuated by the environment; after a script file is generated according to the full-link sea-sky scene infrared radiation link transmission model, the scene information and the script file are imported into a rendering engine, and rendering is completed. According to the invention, the reflection condition of the real ocean to the sun can be better simulated, and the authenticity is improved when the dynamic change scene of the sea surface is simulated.

Description

Technical Field

[0001] The present invention belongs to the technical field of computer simulation, and particularly relates to a high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling and simulation method and device. Background Art

[0002] The research on sea-sky scene modeling and simulation has the characteristics of long R & D cycle, huge investment, and strong multi-disciplinary intersection comprehensiveness, and its development is relatively slow. For the simulation of sea-sky scenes, the current mainstream method is to model the sea surface height field in a rendering engine, and generally use a mathematical model or sea wave spectrum approximation to complete the dynamic simulation of water bodies. Sun Peng et al. used the Gerstner equation set as the sea wave model, combined with the JONSWAP spectrum to establish a three-dimensional dynamic sea wave model, and then used shader technology to complete the simulation of ambient light and sunlight. Zhu Mengyao et al. optimized the lighting model through the bidirectional reflectance distribution function to achieve the real-time rendering of subsurface scattering.

[0003] However, the commonly used bidirectional reflectance distribution function of the sea surface in the prior art is a general model for describing relatively smooth bodies such as plastics or metals, and cannot reflect the characteristics of water bodies with a certain roughness on the surface and dynamic changes, so the simulation of solar flares does not match the actual situation very well; in addition, the detector angle acceptance rate model used in the prior art is prone to the situation where the outgoing reflected light (the angle between the outgoing light and the observation point is much larger than the field of view angle) cannot be received. Summary of the Invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides a high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling and simulation method and device. The technical problems to be solved by the present invention are realized through the following technical solutions:

[0005] In the first aspect, the present invention provides a high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling and simulation method, including:

[0006] Obtaining the scene information of the three-dimensional model of the sea-sky scene in each frame at a preset time interval;

[0007] Converting the current sea spectrum into an ocean grid height field to determine the position and properties of the ocean water microfacets;

[0008] According to the position and properties of the ocean water microfacets, establishing a full-link sea-sky scene infrared radiation link transmission model; the full-link sea-sky scene infrared radiation link transmission model is used to describe the transmission process of radiation energy from the target or background radiation source to the detector after environmental attenuation;

[0009] After generating a script file according to the full-link sea-sky scene infrared radiation link transmission model, importing the scene information and the script file into a rendering engine to complete rendering.

[0010] In one embodiment of the present invention, the steps of establishing an infrared radiation link transmission model for the entire link of the sea-sky scene according to the position and properties of the marine water microfacet include:

[0011] Statistically fit the relationship among the wind speed, sea surface roughness, and reflectivity, and construct the bidirectional reflectance distribution function of the marine water microfacet in combination with the position and properties of the marine water microfacet.

[0012] Construct a detector angle energy reception rate function according to the relationship between the radiation energy received by the detector from the marine water microfacet, the reflection direction of the marine water microfacet, the line of sight of the detector, and the field of view of the detector.

[0013] In one embodiment of the present invention, the properties of the marine water microfacet at least include: the normal direction, temperature, and transmittance of the marine water microfacet.

[0014] In one embodiment of the present invention, the bidirectional reflectance distribution function of the marine water microfacet is expressed as:

[0015]

[0016] In the formula, ρ represents the reflectivity of the marine water microfacet, R θ represents the reflection angle coefficient, P represents the probability density of the marine water microfacet, S represents the shielding effect coefficient of the marine water microfacet, ρ ⊥ represents the vertical polarization Fresnel reflection coefficient, ρ / / represents the parallel polarization Fresnel reflection coefficient, θ i and θ f are the incident angle and the reflection angle respectively, represent the incident azimuth angle and the reflection azimuth angle respectively, S x and S y are the projection components of the marine water microfacet on the x-axis and y-axis, σ represents the roughness coefficient, 2σ 2 = 0.003 + 0.00512ω, ω represents the wind speed, ν represents the viewing angle geometric coefficient, ν = σ -1 tan(η), η represents the detector elevation angle, erf represents the error function, β represents the normal of the marine water microfacet

[0017] In one embodiment of the present invention, the detector angle energy reception rate function is expressed as:

[0018]

[0019] In the formula, represents the reflected light of the microfacet, represents the line of sight of the detector, represents the field of view angle of the detector, and θ is the included angle between them.

[0020] In an embodiment of the present invention, the scene information includes: grid information, material information, target surface temperature skin texture, and radiation source information texture.

[0021] In an embodiment of the present invention, the steps of converting the current sea spectrum into an ocean grid height field to determine the position and properties of ocean water microfacets include:

[0022] Converting the current sea spectrum into an ocean grid height field through fast Fourier transform;

[0023] Determining the position and properties of ocean water microfacets according to the ocean grid height field.

[0024] In a second aspect, the present invention further provides a high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling and simulation device, including:

[0025] An acquisition module, configured to acquire the scene information of the sea-sky scene three-dimensional model at a preset time interval;

[0026] A conversion module, configured to convert the current sea spectrum into an ocean grid height field to determine the position and properties of ocean water microfacets;

[0027] A generation module, configured to generate a full-link sea-sky scene infrared radiation link transmission model according to the position and properties of the ocean water microfacets; the full-link sea-sky scene infrared radiation link transmission model is used to describe the transmission process of radiation energy from the radiation source to the object surface and then to the detector;

[0028] A rendering module, configured to generate a script file according to the full-link sea-sky scene infrared radiation link transmission model, and then import the scene information and the script file into a rendering engine to complete rendering.

[0029] In a third aspect, the present invention further provides an electronic device, including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory complete communication with each other through the communication bus;

[0030] The memory is used to store a computer program;

[0031] The processor is configured to implement the method described in the first aspect when executing the program stored in the memory.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0033] The present invention provides a method and device for infrared three-dimensional imaging modeling and simulation of a high-fidelity dynamic sea-sky scene. According to the position and properties of the microfacets of ocean water, a full-link infrared radiation link transmission model for the sea-sky scene is established, including the construction of the bidirectional reflectance distribution function of the ocean water microfacets and the construction of the detector angular energy reception rate function. On the one hand, based on the statistically obtained relationship describing the wind speed, sea surface roughness, and reflectivity, the present invention constructs a dynamically multi-parameter coupled bidirectional reflectance distribution function by characterizing the probability density of the microfacets, which can better simulate the reflection of the real ocean to the sun. On the other hand, due to the randomness of the real-time change of the water body, the present invention takes into account the situation where the radiant energy exits the field of view of the detector when constructing the detector angular energy reception rate function. Therefore, it helps to improve the authenticity when simulating such a dynamically changing scene as the sea surface.

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. Description of the Drawings

[0035] Figure 1 is a flowchart of a method for infrared three-dimensional imaging modeling and simulation of a high-fidelity dynamic sea-sky scene provided by an embodiment of the present invention;

[0036] Figure 2 is another flowchart of a method for infrared three-dimensional imaging modeling and simulation of a high-fidelity dynamic sea-sky scene provided by an embodiment of the present invention;

[0037] Figure 3 is a schematic diagram of the microfacets of ocean water provided by an embodiment of the present invention;

[0038] Figures 4a to 4c is a schematic diagram of the detector receiving reflected light under different conditions provided by an embodiment of the present invention;

[0039] Figure 5 is a schematic structural diagram of a device for infrared three-dimensional imaging modeling and simulation of a high-fidelity dynamic sea-sky scene provided by an embodiment of the present invention;

[0040] Figure 6 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention. Detailed Embodiments

[0041] The present invention will be further described in detail below in conjunction with specific embodiments, but the embodiments of the present invention are not limited thereto.

[0042] Figures 1 to 2 is a flowchart of a method for infrared three-dimensional imaging modeling and simulation of a high-fidelity dynamic sea-sky scene provided by an embodiment of the present invention. Please refer to Figures 1 to 2, an embodiment of the present invention provides a high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling and simulation method, including:

[0043] S1. Obtain the scene information of the sea-sky scene three-dimensional model in each frame at a preset time interval.

[0044] Exemplarily, the scene information includes: mesh information (.mesh), material information (.Material), target surface temperature skin texture (.dds), and radiation source information texture (.dds), where (.mesh), (.Material), and (.dds) are the formats in which these data files are stored in a computer.

[0045] S2. Convert the current sea spectrum into an ocean grid height field to determine the position and properties of the ocean water microfacets.

[0046] In this step, the properties of the ocean water microfacets at least include: the normal direction, temperature, and transmittance of the ocean water microfacets.

[0047] Specifically, the step of converting the current sea spectrum into an ocean grid height field in step S2 to determine the position and properties of the ocean water microfacets includes:

[0048] S201. Convert the current sea spectrum into an ocean grid height field through fast Fourier transform;

[0049] S202. Determine the position and properties of the ocean water microfacets according to the ocean grid height field.

[0050] S3. Establish a full-link sea-sky scene infrared radiation link transmission model according to the position and properties of the ocean water microfacets; the full-link sea-sky scene infrared radiation link transmission model is used to describe the transmission process of radiation energy from a target or background radiation source to a detector after environmental attenuation.

[0051] Optionally, step S3 includes:

[0052] S301. Statistically fit the relationship between wind speed, sea surface roughness, and reflectivity, and construct a bidirectional reflectance distribution function of the ocean water microfacets in combination with the position and properties of the ocean water microfacets;

[0053] S302. Construct a detector angle energy reception rate function according to the relationship between the radiation energy received by the detector from the ocean water microfacets, the reflection direction of the ocean water microfacets, the line of sight of the detector, and the field of view of the detector.

[0054] Figure 3 is a schematic diagram of the ocean water microfacets provided by an embodiment of the present invention. Specifically, as Figure 3As shown, the xoy plane is the horizontal plane, and β represents the normal of the ocean water body micro - surface element. The normal of the xoy plane The included angle, that is, the slope angle, θ i θ f respectively represent the incident angle and the reflection angle. respectively represent the incident azimuth angle and the reflection azimuth angle. The probability density model of the ocean body micro - surface element can be expressed as:

[0055]

[0056] Among them, S x S y are the projection components of the ocean water body micro - surface element on the x - axis and y - axis respectively, and can be expressed according to geometric relations as:

[0057]

[0058]

[0059] Combined with the principle of the bidirectional reflectance distribution function, considering the reflection coefficient and geometric occlusion, the bidirectional reflectance distribution function of the ocean water body micro - surface element can be obtained:

[0060]

[0061] In the formula, ρ represents the reflectivity of the ocean water body micro - surface element, R θ represents the reflection angle coefficient, P represents the probability density of the ocean water body micro - surface element, S represents the occlusion effect coefficient of the ocean water body micro - surface element, ρ ⊥ represents the vertical polarization Fresnel reflection coefficient, ρ / / represents the parallel polarization Fresnel reflection coefficient, θ i θ f respectively are the incident angle and the reflection angle. respectively represent the incident azimuth angle and the reflection azimuth angle, S x S y are the projection components of the ocean water body micro - surface element on the x - axis and y - axis. σ represents the roughness coefficient, 2σ 2 = 0.003 + 0.00512ω, ω represents the wind speed, ν represents the viewing geometry coefficient, ν = σ -1 tan(η), η represents the detector elevation angle, erf represents the error function, β represents the normal of the ocean water body micro - surface element The normal of the xoy plane The included angle.

[0062] Furthermore, the detector angle energy reception rate function is defined as:

[0063]

[0064] Among them, represents the reflected light of the ocean water microfacet, represents the line of sight of the detector. For the convenience of analysis, it is assumed that points from the outside to the detector, represents the field of view angle of the detector. When the horizontal field of view angle and the vertical field of view angle of the detector are different, the larger one is taken.

[0065] Considering the ocean water microfacet and the principles of computer graphics, the detector angle energy reception rate function is transformed into a single-parameter function for the convenience of simulation:

[0066]

[0067] Among them, θ is the angle between, and the field of view angle of the detector is regarded as a constant.

[0068] Combined with the infrared principle and the characteristics of the real detector, it can be known that P(θ) should satisfy:

[0069] P(0) = 1;

[0070] P(θ) = 0, θ ≥ a;

[0071] P'(θ) ≤ 0, P”(θ) < 0;

[0072] Among them, a is a constant related to the field of view angle of the detector, such as It should be noted that when θ > 90°, the radiation energy must not be received by the detector, so this situation does not need to be considered. Therefore, it can be considered that the domain of the detector angle energy reception rate function is in the interval [0, 90]. Currently, the following analytical formula is constructed by quadratic fitting as the detector angle energy reception rate function:

[0073]

[0074] In the formula, represents the reflected light of the microfacet, represents the line of sight of the detector, represents the field of view angle of the detector, and θ is the angle between.

[0075] It should be noted that the above detector angular energy reception rate function is an analytical formula constructed for a 9°×7.2° detector. 9° and 7.2° are the horizontal and vertical field of view angles of the detector respectively. Of course, for other detectors, the detector angular energy reception rate function can also be constructed in the same way, and even the detector's actual shot can be used for inverse fitting to improve the reliability of the simulation. When constructing the detector angular reception rate function and adding it to the infrared radiation simulation link, the authenticity optimization is completed.

[0076] It should be understood that for the real ocean, the water height field will change continuously with the change of conditions such as time and wind speed. From a microscopic perspective, the orientation of the micro-surface element of the ocean water in a certain area at sea will change with time all the time, that is, the normal line of the micro-surface element of the ocean water will change dynamically. In this scenario, for a detector with a small field of view, since the angle between the reflected light and the observation point is much larger than the field of view angle of the detector, it is very easy for the detector to fail to receive the reflected light.

[0077] Figures 4a to 4c It is a schematic diagram of the detector receiving reflected light under different conditions provided by the embodiment of the present invention. Specifically, Figure 4a As shown, it is the case where the detector cannot receive the outgoing light. Figure 4b Compared with Figure 4a A detector with a larger field of view is replaced and other conditions remain unchanged. At this time, the detector can receive the reflected light. Further, Figure 4c Compared with Figure 4a It is the detector receiving situation at different times and other conditions remain unchanged. The dynamic change of the water body causes the normal line of the micro-surface element of the ocean water to change, so the detector can also receive the reflected light.

[0078] In the prior art, generally only the problem of detector frustum sampling is considered. The pixels in the area that can be sampled within the frustum will all participate in the calculation and rendering, while the problem of whether the radiation energy is actually received is ignored. For ocean simulation, due to the randomness of the real-time change of the water body, the radiation energy may be emitted outside the field of view in any area, and this problem must be considered. Starting from this perspective, the detector angular energy reception rate function is proposed in this embodiment, which helps to improve the authenticity when simulating a dynamic change scenario such as the sea surface.

[0079] S4. After generating the script file according to the full-link infrared radiation link transmission model of the sea-sky scene, import the scene information and the script file into the rendering engine to complete the rendering.

[0080] Import the scene information and the shader script describing the radiation transmission link process into the OGRE rendering engine. The rendering engine first parses all the geometric position relationships in the scene, determines the interaction points of the light rays emitted from the pixel centers with the scene based on the virtual camera position, and extracts information such as temperature, material refractive index, and roughness at the interaction points. Then, it calls the script file pixel by pixel for lighting calculation, thereby stitching all the pixel points to obtain a complete sea view image.

[0081] Furthermore, the scene information and the position of the virtual camera can be changed, and then enter the loop again, repeat the calculation, output the image, and complete the dynamic rendering.

[0082] Step S4 adopts the method of pre-calculating the numerical mapping and storing it in a table, and the rendering engine dynamically looks up the table to complete the error calculation. This method is more efficient than constructing an analytical formula for fitting and can meet the requirements of dynamic rendering.

[0083] In addition, in this embodiment, the shader executes the rendering step on the GPU, and the parallel computing ability of the GPU can greatly improve the real-time simulation ability of the image.

[0084] Figure 5 It is a schematic structural diagram of a high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling and simulation device provided by an embodiment of the present invention. As Figure 5 shown, an embodiment of the present invention also provides a high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling and simulation device, including:

[0085] An acquisition module 510, configured to acquire the scene information of the three-dimensional model of the sea-sky scene at a preset time interval;

[0086] A conversion module 520, configured to convert the current sea spectrum into an ocean grid height field to determine the position and properties of the ocean water microfacets;

[0087] A generation module 530, configured to generate a full-link sea-sky scene infrared radiation link transmission model according to the position and properties of the ocean water microfacets; the full-link sea-sky scene infrared radiation link transmission model is used to describe the transmission process of radiation energy from the radiation source to the object surface and then to the detector;

[0088] A rendering module 540, configured to generate a script file according to the full-link sea-sky scene infrared radiation link transmission model, and then import the scene information and the script file into the rendering engine to complete the rendering.

[0089] As can be seen from the above embodiments, the beneficial effects of the present invention are as follows:

[0090] The present invention provides a method and device for infrared three-dimensional imaging modeling and simulation of a high-fidelity dynamic sea-sky scene. According to the position and properties of the ocean water microfacets, a full-link infrared radiation link transmission model for the sea-sky scene is established, including the construction of the bidirectional reflectance distribution function of the ocean water microfacets and the construction of the detector angular energy reception rate function. On the one hand, based on the statistically obtained relationship describing the wind speed, sea surface roughness and reflectivity, the present invention constructs a dynamic multi-parameter coupled bidirectional reflectance distribution function by characterizing the probability density of the microfacets, which can better simulate the reflection of the real ocean to the sun. On the other hand, due to the randomness of the real-time change of the water body, the present invention takes into account the situation where the radiant energy exits the field of view of the detector when constructing the detector angular energy reception rate function, so it helps to improve the authenticity when simulating a dynamic change scene such as the sea surface.

[0091] An embodiment of the present invention also provides an electronic device, as Figure 6 shown, including a processor 601, a communication interface 602, a memory 603 and a communication bus 604. Among them, the processor 601, the communication interface 602, and the memory 603 complete mutual communication through the communication bus 604.

[0092] The memory 603 is used to store a computer program.

[0093] When the processor 601 is used to execute the program stored on the memory 603, the following steps are implemented:

[0094] Obtain the scene information of the three-dimensional model of the sea-sky scene in each frame according to a preset time interval.

[0095] Convert the current sea spectrum into an ocean grid height field to determine the position and properties of the ocean water microfacets.

[0096] According to the position and properties of the ocean water microfacets, establish a full-link infrared radiation link transmission model for the sea-sky scene; the full-link infrared radiation link transmission model for the sea-sky scene is used to describe the transmission process of radiant energy from the target or background radiation source to the detector after environmental attenuation.

[0097] After generating a script file according to the full-link infrared radiation link transmission model for the sea-sky scene, import the scene information and the script file into the rendering engine to complete the rendering.

[0098] The communication bus mentioned in the above electronic device can be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. This communication bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience in representation, only a thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0099] The communication interface is used for communication between the above electronic device and other devices.

[0100] The memory can include a Random Access Memory (RAM), and can also include a Non-Volatile Memory (NVM), such as at least one disk memory. Optionally, the memory can also be at least one storage device located far from the aforementioned processor.

[0101] The above-mentioned processor can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0102] The method provided by the embodiments of the present invention can be applied to an electronic device. Specifically, the electronic device can be: a desktop computer, a portable computer, a smart mobile terminal, a server, etc. There is no limitation here. Any electronic device that can implement the present invention belongs to the protection scope of the present invention.

[0103] For the device / electronic device / storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple. For the relevant parts, refer to the partial description of the method embodiments.

[0104] It should be noted that the device, electronic device, and storage medium in the embodiments of the present invention are respectively the device, electronic device, and storage medium applying the above-mentioned high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling and simulation method. All embodiments of the above-mentioned high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling and simulation method are applicable to the device, electronic device, and storage medium, and can achieve the same or similar beneficial effects.

[0105] In the description of the present invention, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0106] Although the present application has been described in conjunction with various embodiments herein, however, in the process of implementing the claimed present application, those skilled in the art can understand and realize other variations of the disclosed embodiments by viewing the accompanying drawings, the disclosure content, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "one" does not exclude a plurality of situations. Certain measures are recited in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0107] The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the concept of the present invention, several simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope of the present invention.

Claims

1. An infrared three-dimensional imaging modeling and simulation method for a highly realistic dynamic sea-sky scene, characterized in that Including: Obtain the scene information of the three-dimensional model of the sea-sky scene in each frame at a preset time interval; Convert the current sea spectrum into an ocean grid height field to determine the position and properties of the ocean water microfacets; Establish a full-link infrared radiation link transmission model for the sea-sky scene according to the position and properties of the ocean water microfacets; the full-link infrared radiation link transmission model for the sea-sky scene is used to describe the transmission process of radiation energy from the target or background radiation source to the detector after environmental attenuation; After generating a script file according to the full-link infrared radiation link transmission model for the sea-sky scene, import the scene information and the script file into a rendering engine to complete the rendering.

2. The high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling and simulation method according to claim 1, characterized in that The step of establishing a full-link infrared radiation link transmission model for the sea-sky scene according to the position and properties of the ocean water microfacets includes: Statistically fit the relationship between wind speed, sea surface roughness and reflectivity, and construct a bidirectional reflection distribution function of the ocean water microfacets in combination with the position and properties of the ocean water microfacets; Construct a detector angle energy reception rate function according to the relationship between the radiation energy received by the detector from the ocean water microfacets, the reflection direction of the ocean water microfacets, the line of sight of the detector, and the field of view of the detector.

3. The high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling and simulation method according to claim 2, wherein, The properties of the ocean water microfacets at least include: the normal direction, temperature and transmittance of the ocean water microfacets.

4. The high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling and simulation method according to claim 3, characterized in that, The bidirectional reflection distribution function of the ocean water microfacets is expressed as: where ρ represents the reflectivity of the micro - surface element of the ocean water body, R θ represents the reflection angular coefficient, P represents the probability density of the micro - surface element of the ocean water body, S represents the shielding effect coefficient of the micro - surface element of the ocean water body, ρ ⊥ represents the Fresnel reflection coefficient of vertical polarization, ρ / / represents the Fresnel reflection coefficient of parallel polarization, θ i 、θ f are the incident angle and the reflection angle respectively, represent the incident azimuth angle and the reflection azimuth angle respectively, S x 、S y are the projection components of the micro - surface element of the ocean water body on the x - axis and y - axis, σ represents the roughness coefficient, 2σ 2 = 0.003 + 0.00512ω, where ω represents the wind speed, ν represents the viewing geometry coefficient, ν = σ -1 tan(η), η represents the elevation angle of the detector, erf represents the error function, β represents the normal of the micro - surface element of the ocean water body and the normal of the xoy plane of the included angle.

5. The high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling and simulation method according to claim 4, characterized in that, The detector angle energy reception rate function is expressed as: In the formula, represents the reflected light of the microfacet element, represents the line of sight of the detector, represents the field of view angle of the detector, and θ is the included angle between.

6. The high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling and simulation method according to claim 1, wherein The scene information includes: grid information, material information, target surface temperature skin texture, and radiation source information texture.

7. The high-fidelity dynamic sea-sky scene infrared three-dimensional imaging modeling and simulation method according to claim 1, wherein The step of converting the current sea spectrum into an ocean grid height field to determine the position and properties of the ocean water microfacets includes: Convert the current sea spectrum into an ocean grid height field by fast Fourier transform; Determine the position and properties of the ocean water microfacets according to the ocean grid height field.

8. An infrared three-dimensional imaging modeling and simulation device for a high-fidelity dynamic sea-sky scene, characterized in that, Including: An acquisition module for obtaining the scene information of the three-dimensional model of the sea-sky scene in each frame at a preset time interval; A conversion module for converting the current sea spectrum into an ocean grid height field to determine the position and properties of the ocean water microfacets; A generation module for establishing a full-link infrared radiation link transmission model for the sea-sky scene according to the position and properties of the ocean water microfacets; the full-link infrared radiation link transmission model for the sea-sky scene is used to describe the transmission process of radiation energy from the target or background radiation source to the detector after environmental attenuation; A rendering module for, after generating a script file according to the full-link infrared radiation link transmission model for the sea-sky scene, importing the scene information and the script file into a rendering engine to complete the rendering.

9. An electronic device, characterized in that, Including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus; The memory is used for storing a computer program; When the processor executes the program stored on the memory, it implements the method according to any one of claims 1-7.

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