A multi-dimensional information measurement system and method for light field

Abstract

The application provides a multi-dimensional information measuring system and method of a light field. The multi-dimensional information measuring system of the light field comprises a regulating device, which is used for adjusting an illumination state of a light field to obtain an initial light field; a scene simulation device, which comprises a simulation medium and a target object, receives the initial light field, and makes the initial light field pass through the target object and the simulation medium and exit to obtain a to-be-measured light field; and a multi-dimensional detection device, which receives the to-be-measured light field and detects information of the to-be-measured light field. The scene simulation device simulates multiple scenes, and the system can detect multi-dimensional light field information of multiple environmental variables.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of light field information measurement, and particularly relates to a multi-dimensional information measurement system and method of a light field. BACKGROUND

[0002] The essence of photoelectric imaging is a process of obtaining and interpreting light field information. Traditional optical imaging realizes imaging and measurement of a target by using independent projection of full light field information in several dimensions, which is based on observation of light field information in a low-dimensional domain according to conjugate relationship between an object image and light wave energy. However, this way of depicting high dimensions in a low dimension is often one-sided and inaccurate, especially when the mechanism of high-dimensional light field information itself is unclear, which leads to insurmountable obstacles of traditional optics in far imaging distance, high resolution, wide field of view and the like. Computational imaging technology focusing on information rather than energy is a new imaging technology at the forefront of multi-disciplinary intersection of optics, mathematics and information technology, and is an important development direction of future optical imaging. Computational optical imaging has made a revolutionary breakthrough far beyond traditional imaging technology in performance and function through interpretation of light field information, such as optical synthetic aperture imaging technology breaking through imaging resolution, and transmission scattering medium imaging technology and non-visual domain imaging technology breaking through imaging function.

[0003] Although there are many outstanding research results, the basic theoretical researches on computational optical imaging model and imaging mechanism are still in the early stage, and the physical root of generation, transmission and change of imaging light field information is still unknown. This is because the low light field dimension and incomplete light field condition variables for quantitative measurement and analysis when exploring the essence of light field information transmission. In fact, various factors such as light field, medium, optical system and target state in the imaging link will disturb the light field information, and then affect the acquisition and interpretation of imaging information. Therefore, comprehensively analyzing the change process of multi-dimensional light field information in imaging has important significance for revealing the information interpretation mechanism and boundary conditions in computational optical imaging, and can break through the performance limitation of imaging and increase the light field information flux. However, the current scientific research instruments and equipment can only detect the projection information of a certain dimension such as intensity of light field, and there is no multi-dimensional and multi-condition light field multi-dimensional information measurement instrument, which greatly limits the development of basic theoretical researches on computational optical imaging mechanism. SUMMARY

[0004] The application provides a multi-dimensional information measurement system and method of a light field, which can detect multi-dimensional light field information.

[0005] In a first aspect, the present application provides a multi-dimensional information measurement system of a light field, comprising: a regulation device, configured to adjust an illumination state of the light field to obtain an initial light field; a scene simulation device, comprising a simulation medium and a target object, configured to receive the initial light field, so that the initial light field passes through the target object and the simulation medium and is emitted to obtain a to-be-measured light field; and a multi-dimensional detection device, configured to receive the to-be-measured light field and detect information of the to-be-measured light field.

[0006] The regulation device comprises a first control unit and a mirror connected to the first control unit. The first control unit adjusts an angle of the mirror, so that the light field is reflected by the mirror to obtain the initial light field, and an emission direction of the initial light field is parallel to a first direction. The first direction is a direction in which the scene simulation device is located.

[0007] The regulation device comprises a parameter adjustment unit configured to adjust a parameter of the initial light field. The parameter adjustment unit comprises any one or any combination of an attenuation sheet, a polaroid, a chopper, a filter and ground glass.

[0008] The scene simulation device comprises a medium generation device configured to generate a simulation medium, and a detection device configured to detect a characteristic parameter of the simulation medium. The detection device comprises any one or any combination of a densimeter, a thermometer and a flowmeter.

[0009] The medium generation device comprises a generation device configured to generate the simulation medium, and a medium bin configured to accommodate the simulation medium. The simulation medium comprises smoke, liquid and solid. The generation device comprises a first housing, a generator arranged on one side of the first housing and at least partially embedded in the first housing, and an internal space of the first housing in communication, and a fan arranged on the top of the first housing. A first conveying port is arranged at the bottom of the first housing. The generator is configured to generate the simulation medium. The fan is configured to send the simulation medium into the first conveying port and transmit the simulation medium to the medium bin through the first conveying port.

[0010] The first medium bin is configured to accommodate liquid simulation medium. The second conveying port is arranged in the first medium bin. A liquid pump is connected to the second conveying port and configured to guide the liquid simulation medium into the first medium bin. The second medium bin is configured to accommodate solid and / or gas simulation medium. The third conveying port is arranged in the second medium bin and connected to the first conveying port. An air pump is connected to the second conveying port and configured to guide the gas simulation medium into the second medium bin. The fourth conveying port is configured to convey solid simulation medium.

[0011] The surface of the medium bin perpendicular to the first direction is provided with an anti-reflection film; the inner wall of the first medium bin and the second medium bin is a curved surface structure and is a dark light-absorbing coating.

[0012] The multi-dimensional detection device comprises an integrated detection subsystem and a parallel detection subsystem; the integrated detection subsystem comprises a polarization spectrum integrated detection module and a phase polarization integrated detection module; the polarization spectrum integrated detection module comprises a spectrum filter, a polarization filter and an image sensor, the image sensor is used for receiving the to-be-detected light field and acquiring a polarization color coded image mixed with a multi-spectrum image based on the to-be-detected light field, the spectrum filter and the polarization filter are used for filtering and decoding the coded image to obtain a multi-spectrum image; the phase polarization integrated detection module comprises a beam splitter, a combined prism, a polarization camera and a computer system; the beam splitter and the combined prism use the polarization camera to collect in-focus and out-of-focus images, and reconstruct wavefront phase information and target polarization information by using polarization information of the images; the parallel detection subsystem comprises a polarization detection device, a phase detection device and a spectrum detection device, and a beam splitter; the beam splitter is used for splitting the to-be-detected light field to the polarization detection device, the phase detection device and the spectrum detection device to detect the to-be-detected light field information.

[0013] The system further comprises a mobile control platform for controlling the to-be-detected light field to enter the integrated detection subsystem and / or the parallel detection subsystem; and an electrically controlled beam deflector for adjusting the to-be-detected light field entering the integrated detection subsystem and / or the parallel detection subsystem.

[0014] In a second aspect, the present application provides a multi-dimensional information measurement method of a light field, which comprises: acquiring a light field and adjusting an illumination state of the light field to obtain an initial light field; controlling the initial light field to pass through an analog medium and a target object to obtain a to-be-detected light field; and detecting information of the to-be-detected light field.

[0015] Advantages of the present application

[0016] Different from the prior art, the multi-dimensional information measurement system of a light field of the present application comprises: a regulation and control device for adjusting an illumination state of a light field to obtain an initial light field; a scene simulation device comprising an analog medium and a target object, which receives the initial light field so that the initial light field passes through the target object and the analog medium and is emitted to obtain a to-be-detected light field; and a multi-dimensional detection device for receiving the to-be-detected light field and detecting information of the to-be-detected light field. By simulating various scenes by the scene simulation device, the system can detect light field information of multiple environmental variables. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1Structure diagram of a first embodiment of the multi-dimensional information measurement system of the light field of the application;

[0018] Figure 2 Structure diagram of an embodiment of the regulating device;

[0019] Figure 3 Structure diagram of an embodiment of the generating device;

[0020] Figure 4 Structure diagram of an embodiment of the medium bin;

[0021] Figure 5 Structure diagram of an embodiment of the multi-dimensional detection device;

[0022] Figure 6 Flow diagram of an embodiment of the multi-dimensional information measurement method of the light field of the application. Specific implementation method

[0023] In order to further illustrate the technical means and effects adopted by the application to achieve the predetermined object of the application, the application is described in detail below in combination with the drawings and specific embodiments. The foregoing and other technical contents, features and effects of the application can be clearly presented in the detailed description of the specific embodiments below in combination with the drawings. It should be understood that the specific embodiments described herein are only used to explain the application and do not limit the application. The accompanying drawings are provided for reference and explanation only and do not limit the technical solutions of the application.

[0024] The breakthrough of computational optical imaging performance and function is closely related to the degree of acquisition and interpretation of light field information. The current measurement method of light field information is limited to the measurement of its projection information in one or several physical dimensions, and the detection dimension is low, the information recording accuracy is low, and the integrated detection technology is less, which greatly limits the development of the basic theory research of computational optical imaging; and the current measurement scheme is only for a single imaging environment, and cannot completely cover a variety of real imaging scene ranges, resulting in one-sided measurement and analysis results; in addition, the existing detection technology has low integration and low real-time information throughput, and cannot fully analyze the light field information. Therefore, the present application proposes a multi-dimensional information measurement system of a light field, please refer to Figure 1 The multi-dimensional information measurement system of the light field of the application specifically comprises a regulating device 11, a scene simulation device 12 and a multi-dimensional detection device 13.

[0025] The regulation device 11 is configured to adjust the illumination state of the light field to obtain an initial light field. The scene simulation device 12 includes a target object and a simulation medium. The scene simulation device 12 receives the initial light field, so that the initial light field passes through the target object and the simulation medium and is emitted to obtain a to-be-detected light field. The multi-dimensional detection device 13 receives the to-be-detected light field and detects information of the to-be-detected light field.

[0026] Specifically, the regulation device 11 includes a first control unit and a mirror. The mirror is connected to the first control unit. The first control unit adjusts the angle of the mirror, so that the light field is reflected by the mirror to obtain the initial light field. The emission direction of the initial light field is parallel to a first direction. The first direction is the direction in which the scene simulation device is located. Specifically, please refer to Figure 2 The mirror 111 can be controlled by the first control unit to rotate, so as to change the emission direction of the light field. Specifically, the emission angle of the light field is changed. When the light field enters, the first control unit controls the mirror 111 to rotate, so that the emission direction of the initial light field reflected by the mirror 111 is consistent with the first direction X. Further, the regulation device 11 further includes a parameter adjustment unit 112. The parameter adjustment unit 112 is configured to adjust the parameters of the initial light field. The parameter adjustment unit includes any one or any combination of an attenuating sheet, a polarizing sheet, a chopper, a filter, frosted glass, and the like, and is not specifically limited.

[0027] As shown in Figure 2 The regulation device 11 includes a light field transmission channel 113. The light field transmission channel 113 is provided with an attenuating sheet, a polarizing sheet, a chopper, a filter, frosted glass, and the like. The attenuating sheet is configured to adjust the amplitude of the initial light field. The polarizing sheet is configured to adjust the polarization of the initial light field. The chopper is configured to adjust the frequency of the initial light field, so as to realize the regulation of the multi-dimensional information of the light field. The attenuating sheet, the polarizing sheet, and the chopper are inserted into the light field transmission channel 113.

[0028] In an embodiment, Figure 2 The mirror 111 can be a digital micro-mirror device (DMD). When the light field passes through the DMD, the DMD can code and regulate the light field to generate structured light. When the DMD is closed, the mirror can be used only for reflection. The initial light field reflected by the mirror enters the scene simulation device.

[0029] In an embodiment of the present application, the light source 110 that generates the light field can be an LED, can also be a laser such as a continuous laser or a pulsed laser, and can also be a natural wide-spectrum light source, and is not specifically limited.

[0030] This application uses the control device 11 to adjust the incident angle of the initial light field entering the scene simulation device, and also to adjust the multi-dimensional information of the light field, such as amplitude, polarization and frequency.

[0031] The scenario simulation device of this application includes a medium generating device and a detection device. The medium generating device is used to generate a target object and a simulated medium; the detection device is used to detect the characteristic parameters of the simulated medium, and the detection device includes any one or any combination of a densitometer, a thermometer, and a flow meter.

[0032] The medium generating apparatus includes a generating device and a medium reservoir. The generating device generates the simulated medium, and the medium reservoir contains the simulated medium. Specifically, for example... Figure 3 As shown, Figure 3 This is a schematic diagram of the structure of an embodiment of the generating device of this application. The generating device includes: a first housing 41, a generator 42, a fan 44, and a first delivery port 43. Specifically, the generator 42 is disposed on one side of the first housing 41 and is at least partially embedded in the first housing 41, communicating with the internal space of the first housing 41; the fan 44 is disposed on the top of the first housing 41; the first delivery port 43 is disposed on the bottom of the first housing 41. The generator 42 is used to generate the simulated medium, and the fan 44 delivers the simulated medium into the first delivery port 43, through which it is transferred to the medium chamber. In one embodiment, the generator 42 can be a smoke generator for generating a smoke medium.

[0033] Please see Figure 4 , Figure 4 This is a schematic diagram of the structure of a media chamber according to an embodiment of this application. Specifically, the media chamber is used to contain the simulated medium, wherein the simulated medium includes smoke and dust. The media chamber includes: a first media chamber 51, a second delivery port 54, and a pump 56. The first media chamber 51 is used to contain the liquid simulated medium; the second delivery port 54 is located in the first media chamber 51; the pump is connected to the second delivery port 54 and is used to introduce the liquid simulated medium into the first media chamber. Specifically, the second delivery port 54 is placed in the liquid simulated medium, and the pump is started to draw the liquid simulated medium into the first media chamber 51. Specifically, a target object 55 is also disposed in the first media chamber 51. The first media chamber 51 can simulate a liquid medium environment. When the initial light field enters the first media chamber 51 and irradiates the target object 55, the test light field of the target object 55 in the liquid simulated medium environment is finally obtained.

[0034] The medium chamber also includes a second medium chamber 52, a vacuum pump 57, and a third delivery port 53. The second medium chamber 52 is used to contain solid and / or gaseous simulated media; the third delivery port 53 is located in the second medium chamber 52 and connected to the first delivery port 43; the vacuum pump 57 is used to introduce the gaseous simulated media into the second medium chamber 52. Specifically, the third delivery port 53 is connected to the first delivery port 43, a generator 42 generates a gaseous simulated media, such as smoke, a fan 44 operates to send the gaseous simulated media into the first delivery port 43, and the vacuum pump 53 starts to draw the gaseous simulated media from the third delivery port 53 into the second medium chamber 52. That is, the second medium chamber 52 can simulate a gaseous medium environment. Specifically, a target object 55 is also provided in the second medium chamber 52. When the initial light field enters the second medium chamber 52 and irradiates the target object 55, the light field to be measured under the gaseous simulated medium environment is finally obtained.

[0035] Furthermore, the second medium chamber 52 also includes a fourth delivery port 61 for conveying a solid simulation medium. That is, the second medium chamber 52 can also simulate a solid medium environment. Specifically, a target object 55 is also placed in the second medium chamber 52. When the initial light field enters the second medium chamber 52 and illuminates the target object 55, the light field to be measured under the solid medium environment is finally obtained.

[0036] Furthermore, the second medium chamber 52 can simultaneously simulate both gaseous and solid media environments. For example, a generator 42 connects the third delivery port 53 to the first delivery port 43 to generate a gaseous simulated medium, such as smoke. A fan 44 operates to deliver the gaseous simulated medium into the first delivery port 43, and a vacuum pump 53 starts to draw the gaseous simulated medium from the third delivery port 53 into the second medium chamber 52. A solid simulated medium is then delivered from the fourth delivery port 61. When the initial light field enters the second medium chamber 52 and irradiates the target object 55, the final measured light field of the target object 55 under both gaseous and solid media environments is obtained.

[0037] In one embodiment, such as Figure 4 As shown, the medium chamber is also equipped with auxiliary devices such as a densitometer 59, a flow meter 58, and a fan 60. The flow meter 58 is used to detect the amount of simulated medium in the first and / or second medium chambers, and the densitometer 59 is used to detect the density of the simulated medium in the first and / or second medium chambers. Specifically, a target object 55 is placed in the medium chamber, a simulated medium is generated by a generating device, and then the simulated medium is introduced into the medium chamber. Understandably, if the simulated medium is a liquid, it is introduced into the first medium chamber; if the simulated medium is a solid and / or gaseous simulated medium, it is introduced into the second medium chamber. Then, the initial light field is incident into the medium chamber and emitted. By simulating different imaging environments through the medium chamber, a wide range of real imaging scenarios can be covered, improving the integration of detection technology, increasing real-time information throughput, and comprehensively analyzing light field information.

[0038] In one embodiment, an anti-reflective coating (AR) is disposed on the surface of the dielectric chamber perpendicular to the first direction. The AR coating is a surface optical coating that increases light transmittance by reducing reflected light. The AR coating utilizes the principle of light interference, causing interference between the light reflected from the front and rear surfaces of the film. The inner walls of both the first and second dielectric chambers are curved and coated with a dark light-absorbing coating, as shown in Figure Y, to prevent diffuse reflection from the chamber walls from interfering with the optical field measurement.

[0039] Please see Figure 5 , Figure 5 This is a schematic diagram of one embodiment of a multi-dimensional detection device. Specifically, the multi-dimensional detection device includes an integrated detection subsystem and a parallel detection subsystem.

[0040] like Figure 5 As shown, the integrated detection subsystem also includes a polarization spectral integrated detection module 63, a polarization phase integrated detection module 65, and a beam splitter 64. Specifically, after the light field to be measured enters the integrated detection subsystem, the beam splitter 64 divides the light field into two parts. One part enters the polarization spectral integrated detection module 63, which detects spectral and polarization information. The polarization spectral integrated detection module includes a spectral filter, a polarization filter, and an image sensor (not shown). The image sensor receives the light field to be measured and acquires a polarized color-coded image based on the multispectral image mixture. The spectral filter and the polarization filter are used to filter and decode the coded image to obtain a multispectral image. The other part enters the polarization phase integrated detection module 65, which detects phase and polarization information. The phase-polarization integrated module includes a beam splitter, a combined prism, a polarization camera, and a computer system. The beam splitter and the combined prism use the polarization camera to acquire focused and out-of-focus images, and reconstruct the wavefront phase information and target polarization information using the polarization information of the images. Specifically, the wavefront phase information and target polarization information are reconstructed, making the system more integrated, compact, and stable.

[0041] The parallel detection subsystem includes a polarization detection device 68, a phase detection device 67, and a spectrum detection device 70, and beam splitters 66 and 69. The beam splitters 66 and 69 are used to split the to-be-detected light field to the polarization detection device 68, the phase detection device 67, and the spectrum detection device 70 to detect the to-be-detected light field information. Specifically, after the to-be-detected light field enters the parallel detection subsystem, the light field is split into two by the beam splitter 66, one enters the phase detection device 67 to detect the phase, and the other enters the beam splitter 69 to further split the light field into two, one enters the spectrum detection device 70 to detect the spectrum, and the other enters the polarization detection device 68 to detect the polarization.

[0042] In an embodiment, as shown in FIG. 1, the multi-dimensional information measurement system of the light field further includes: Figure 5

[0043] A mobile control platform is used to control the to-be-detected light field to enter the integrated detection subsystem and / or the parallel detection subsystem, and an electrically-controlled beam deflector is used to adjust the to-be-detected light field entering the integrated detection subsystem and / or the parallel detection subsystem. Specifically, when the integrated detection subsystem is needed to process the light field, the electrically-controlled beam deflector guides the light field to the integrated detection subsystem; when the parallel detection subsystem is needed to process the light field, the electrically-controlled beam deflector guides the light field to the parallel detection subsystem.

[0044] The multi-dimensional information measurement system of the light field can detect the projection information of the light field in multiple dimensions, or detect the projection information of several dimensions in parallel. The multi-dimensional information of the light field with multiple variables and multiple conditions can be measured. The present application can quantitatively control the light field information measurement of various light sources (wavelength, spectral width, frequency, spatial distribution, coherence, etc.), various medium types (typical medium environments such as various smokes, fogs, and water bodies), and different optical system designs and detection sampling quantization under various imaging scenes. The amplitude distribution, phase distribution, polarization distribution, spectral distribution, de-coherence, and other key parameter information of the light field are comprehensively acquired, the measured data are stored in real time and losslessly and auxiliary data analysis is performed, and the analysis results can be intuitively displayed, which can provide a means for the quantitative analysis and research of the light field characteristics in the field of computational imaging technology.

[0045] Please refer to Figure 6 , Figure 6 FIG. 1 is a flowchart of an embodiment of the multi-dimensional information measurement method of the light field, and the method includes:

[0046] Step S71: acquiring a light field and adjusting the illumination state of the light field to obtain an initial light field.

[0047] ​Specifically, the light field is obtained, and the illumination state of the light field is adjusted by the adjusting device to obtain an initial light field.

[0048] Step S72: controlling the initial light field to pass through the target object of the simulation medium, and obtaining a to-be-measured light field.

[0049] Specifically, the simulation medium can be a gas simulation medium, a liquid simulation medium, a solid simulation medium, or the like.

[0050] Step S73: detecting information of the to-be-measured light field.

[0051] In an embodiment, the multi-dimensional information measurement method of the light field can be realized by the multi-dimensional information measurement device, and further realized by a computer connected to the multi-dimensional information measurement device. Specifically, a high-performance computing platform can be used to realize high-precision control of the whole system. A quantifiable full-platform control module is used to control the mechanical structure, and a global linkage self-correcting regulation function is realized. Meanwhile, the system can realize multi-dimensional information acquisition of various light fields. Due to the huge amount of data, optical fiber transmission is used on the transmission link to solve the problem of data transmission delay. The data entering the storage part is first losslessly compressed, and then the losslessly compressed data is stored in the database through multi-level cache. In the real-time display part, a downsampling technology is used to realize real-time visualization of data.

[0052] The multi-dimensional information measurement of the light field measures complex condition full light field information, samples and fuses optical characteristic information of different dimensions through physical simulation of light field transmission and measurement of optical transmission characteristics in complex environments such as active and passive light sources, clouds, smog, and biological tissues in natural environments, breaks the limitation of traditional optical detection means, improves the detection accuracy of optical imaging means, and more comprehensively reveals the information propagation mechanism of light in complex environments. It has far-reaching significance for the development of all-weather, self-adaptive, universal, and long-distance imaging for civil and commercial use.

[0053] The above is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent flow conversion using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A multi-dimensional information measurement system of a light field, characterized in that, include: A control device is used to adjust the illumination state of the light field to obtain an initial light field; A scene simulation device includes a simulation medium and a target object. It receives an initial light field, causing the initial light field to pass through the target object and the simulation medium and exit to obtain a light field to be measured. The control device includes a first control unit and a reflector. The reflector is connected to the first control unit. The first control unit adjusts the angle of the reflector so that the light field is reflected off the reflector, and the exit direction of the initial light field is parallel to a first direction, which is the direction in which the scene simulation device is located. The reflector is a digital micromirror device (DMD). A multi-dimensional detection device receives the light field to be measured and detects information about the light field to be measured; the multi-dimensional detection device includes: an integrated detection subsystem and a parallel detection subsystem; The integrated detection subsystem includes a polarization spectral integrated detection module and a phase polarization integrated detection module; The polarization spectral integrated detection module includes a spectral filter, a polarization filter, and an image sensor. The image sensor is used to receive the light field to be measured and to acquire a polarization color-coded image of multispectral image mixing based on the light field to be measured. The spectral filter and the polarization filter are used to filter and decode the coded image to obtain a multispectral image. The phase polarization integrated detection module includes a beam splitter, a combination prism, a polarization camera, and a computer system; the beam splitter and the combination prism use the polarization camera to acquire focused and out-of-focus images, and use the polarization information of the images to reconstruct the wavefront phase information and the target polarization information; The parallel detection subsystem includes a polarization detection device, a phase detection device, a spectral detection device, and a beam splitter. The beam splitter is used to split the light field to be measured into the polarization detection device, the phase detection device and the spectral detection device to detect the light field information.

2. The system of claim 1, wherein, The control device includes: A parameter adjustment unit, wherein the parameter adjustment unit is used to adjust the parameters of the initial light field; The parameter adjustment unit includes any one or any combination of attenuator, polarizer, chopper, filter, and frosted glass.

3. The system of claim 1, wherein, The scene simulation device includes: A medium generating device used to generate a simulated medium; A detection device is used to detect the characteristic parameters of the simulated medium. The detection device includes any one or any combination of a densitometer, a thermometer, and a flow meter.

4. The system of claim 3, wherein, The medium generating device includes: Generating device, used to generate the simulated medium; A media container is used to hold the simulated media, wherein the simulated media includes smoke, liquid, and solid. The generating device includes: First shell; A generator is disposed on one side of the first housing and is at least partially embedded in the first housing, communicating with the internal space of the first housing; A fan, wherein the fan is disposed at the top of the first housing; A first delivery port is arranged at the bottom of the first housing, the generator is configured to generate the simulation medium, and the fan is configured to deliver the simulation medium to the first delivery port and then to the medium bin.

5. The system of claim 4, wherein, The medium bin comprises: A first medium bin configured to contain liquid simulation medium; A second delivery port arranged at the first medium bin; A liquid pump connected to the second delivery port and configured to deliver the liquid simulation medium to the first medium bin; A second medium bin configured to contain solid and / or gas simulation medium; A third delivery port arranged at the second medium bin and connected to the first delivery port; A gas pump connected to the second delivery port and configured to deliver the gas simulation medium to the second medium bin; A fourth delivery port configured to deliver solid simulation medium.

6. The system of claim 5, wherein, The surface of the medium bin perpendicular to the first direction is provided with an anti-reflection film; The inner wall of the first medium bin and the second medium bin is curved and provided with a dark light-absorbing coating.

7. The system of claim 1, wherein, The system further comprises: A mobile control platform configured to control the to-be-tested light field to enter the integrated detection subsystem and / or the parallel detection subsystem; An electrically-controlled beam deflector configured to adjust the to-be-tested light field entering the integrated detection subsystem and / or the parallel detection subsystem.

8. A method for measuring multi-dimensional information of a light field, characterized in that, The method is applied to the system according to any one of claims 1-7, and the method comprises: Obtaining a light field and adjusting the illumination state of the light field to obtain an initial light field; Controlling the initial light field to pass through the simulation medium and the target object to obtain a to-be-tested light field; Detecting the multi-dimensional information of the to-be-tested light field.

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