CN102735338A - High-resolution multispectral collection system based on mask and double-Amici prism - Google Patents
High-resolution multispectral collection system based on mask and double-Amici prism Download PDFInfo
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Abstract
The invention provides a multispectral collection system, which comprises an imaging objective lens device, a sampling mask device, a prismatic decomposition device, a photographing device and a spectrum collection calibration device, wherein the imaging objective lens device is used for converging and transmitting scene light rays once to generate transmission light rays and comprises a first lens and a second lens; the sampling mask device is positioned at an imaging plane between the first lens and the second lens and is used for performing space sampling on a scene; the prismatic decomposition device is positioned at the rear end of the imaging objective lens device and is used for performing chromatic dispersion on the transmission light rays which pass through the imaging objective lens device to form spectra on a plurality of wavelengths; the photographing device is positioned at the rear end of the prismatic decomposition device and is used for imaging the spectra on a plurality of wavelengths to generate an image to be calibrated; and the spectrum collection calibration device is positioned at the rear end of the photographing device and is used for calibrating and correcting sampling points of the image to be calibrated to acquire spectrum information of the sampling points of the scene. The invention also provides a multispectral collection method. By the multispectral collection system, high-resolution multispectral data acquisition with large range of depth of field and luminous flux can be realized.
Description
Technical field
The present invention relates to calculate shooting field, particularly a kind of multispectral acquisition system and method.
Background technology
In recent years, calculate shooting and learn to have become and intersect the international forward position hot research in fields such as vision, graphics, shooting, signal Processing, how calculate to gather and caused concern widely with reconstruct for the higher-dimension information of real scene.The correlative study work of carrying out the multispectral information of scene is significant for fields such as remote sensing monitoring, safety investigation, digital entertainments.
Traditional digital camera is to be sampled in the two-dimensional projection subspace of higher-dimension scene signal (the full light function representation of 7 degree of freedom commonly used), the higher-dimension scene information is projected on the camera two dimension sampling subspace gather.Can find out that traditional digital camera association produces losing and coupled problem of information on complete other dimension of light function, comprise that angle information is lost, scene depth information dropout, multispectral information dropout, scene information score coupling or the like in the time shutter.
A very important direction was on spectral domain, to expand for traditional imaging technique during the calculating shooting was learned, promptly multispectral technology.Get on very well from multispectral know-why with vision; There are three kinds of different cone cells that the signal of different-waveband in the spectrum is responded in people's eyeball; Make light in the real scene with the form of three kinds of colors of red, green, blue by the perception of people institute, and corresponding, traditional camera also is the cognitive principle from human eye; (Charge-coupled Device, CCD) the various colors integrated curve goes to catch RGB (RGB) the triple channel information of scene through charge coupled cell.But in fact, the scene light that can see has a complete spectrum, only catches three passages of RGB and has then lost a large amount of details on the spectrum dimension.And rich details information often can disclose a lot of speciality of object and scene light in the spectrum, and these spectral informations have been arranged, and also can in the work of a lot of computer vision fields, obtain considerable progress.The multispectral work in the shooting field of calculating is to gather the research with reconstruct to the multispectral information of scene basically.
Different according to technical requirement and acquisition condition, existing multispectral acquisition system can be divided three classes: spectroanalysis instrument, scan-type optical spectrum imagers and single shot imaging spectrometer.Various technical solutions all are to compensate for spectral resolution through the mode of sacrificing space or temporal resolution, to gather multispectral information.At the beginning of 2011; A kind of multispectral acquisition system of carrying out based on the Hybrid camera system is suggested; It is when sacrificing spatial resolution acquisition additional optical spectral resolution, and the technology of using two-way to gather is carried out the two-way collection to scene; From the multichannel data that obtains, reconstruct the multispectral video of high-spatial and temporal resolution, realized a kind of multispectral acquisition technique.The significance of multispectral collection has all been explained in these work; Though but multispectral collecting work has become the focus that recent calculating shooting is learned; The scene information that how to obtain high time resolution, high spatial resolution, high spectral resolution remains a difficult problem; The above-mentioned work of mentioning also exists field depth narrow, and luminous flux is crossed defectives such as low.Therefore, the research on this direction is extremely important and be widely used.
Summary of the invention
The present invention one of is intended to solve the problems of the technologies described above at least to a certain extent or provides a kind of useful commerce to select at least.
For this reason, first purpose of the present invention is to propose a kind of multispectral acquisition system, can realize the high-resolution multi-spectral data acquisition of bigger field depth and luminous flux.Second purpose of the present invention is to propose a kind of multispectral acquisition method.
For achieving the above object; Embodiments of the invention have proposed a kind of multispectral acquisition system, comprising: the image-forming objective lens device is used for scene light through once converging transmission to generate transmitted ray; Wherein, said image-forming objective lens device comprises first lens and second lens; Sampling mask device, the imaging plane place between said first lens and said second lens is used for scene is carried out spatial sampling; Prism spectroscope is positioned at the rear end of said image-forming objective lens device, and being used for the said transmitted ray chromatic dispersion through said image-forming objective lens device is the spectrum on a plurality of wavelength; Camera arrangement is positioned at the rear end of said Prism spectroscope, and being used for said chromatic dispersion is that spectrum on a plurality of wavelength is carried out to picture to generate image to be calibrated; The spectra collection caliberating device is positioned at the rear end of said camera arrangement, is used for that said image to be calibrated is carried out sampled point and demarcates and the spectral information of sampled point correction with the sampled point that obtains said scene.
Multispectral acquisition system according to the embodiment of the invention; Can realize adjusting, bigger field depth and the multispectral data collection of luminous flux; Simultaneously can guarantee high resolving power, obtain high-quality light spectrum image-forming result, realize effective collection scene light spectral information.
The embodiment of second aspect present invention provides a kind of multispectral acquisition method; Comprise the steps: scene light is once converged transmission to generate transmitted ray through the image-forming objective lens device; And utilize sampling mask device that scene is carried out spatial sampling, said throw light is incident to the Prism spectroscope that is positioned at said image-forming objective lens device rear end; Said Prism spectroscope is the spectrum on a plurality of wavelength with said transmitted ray chromatic dispersion; Said chromatic dispersion is that the camera arrangement of the rear end of spectrum through being positioned at said Prism spectroscope on a plurality of wavelength is carried out to picture to generate image to be calibrated; Utilizing the spectra collection caliberating device that said image to be calibrated is carried out sampled point demarcates and the spectral information of sampled point correction with the sampled point that obtains said scene.
According to the multispectral acquisition method of the embodiment of the invention, can realize adjusting, bigger field depth and the multispectral data collection of luminous flux, can guarantee high resolving power simultaneously, obtain high-quality light spectrum image-forming result.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 is the synoptic diagram of the multispectral acquisition system of the embodiment of the invention;
Fig. 2 is the schematic layout pattern of the multispectral acquisition system of one embodiment of the invention;
Fig. 3 is the design example figure of the sampling mask of one embodiment of the invention;
Fig. 4 is the process flow diagram of the multispectral acquisition method of the embodiment of the invention; And
Fig. 5 is the gatherer process synoptic diagram of the multispectral acquisition method of one embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, be intended to be used to explain the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention; It will be appreciated that; The orientation of indications such as term " " center ", " vertically ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise " or position relation are for based on orientation shown in the drawings or position relation; only be to describe with simplifying for the ease of describing the present invention; rather than the device or the element of indication or hint indication must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more a plurality of these characteristics can be shown or impliedly comprised to the characteristic that is limited with " first ", " second " clearly.In description of the invention, the implication of " a plurality of " is two or more, only if clear and definite concrete qualification is arranged in addition.
In the present invention, only if clear and definite regulation and qualification are arranged in addition, broad understanding should be done in terms such as term " installation ", " linking to each other ", " connection ", " fixing ", for example, can be to be fixedly connected, and also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly through intermediary, can be the connection of two element internals.For those of ordinary skill in the art, can understand above-mentioned term concrete implication in the present invention as the case may be.
As shown in Figure 1, the multispectral acquisition system according to the embodiment of first aspect present invention comprises: image-forming objective lens device 110, sampling mask device 120, Prism spectroscope 130, camera arrangement 140 and spectra collection caliberating device 150.Wherein, image-forming objective lens device 110 is used for scene light through once converging transmission to generate transmitted ray, and image-forming objective lens device 110 comprises first lens 111 and second lens 112; The imaging plane place of sampling mask device 120 between first lens 111 and second lens 112 is used for scene is carried out spatial sampling; Prism spectroscope 130 is positioned at the rear end of image-forming objective lens device 110, and being used for the transmitted ray chromatic dispersion through image-forming objective lens device 110 is the spectrum on a plurality of wavelength; Camera arrangement 140 is positioned at the rear end of Prism spectroscope 130, and being used for chromatic dispersion is that spectrum on a plurality of wavelength is carried out to picture to generate image to be calibrated; Spectra collection caliberating device 150 is positioned at the rear end of camera arrangement 140, is used to treat uncalibrated image and carries out sampled point and demarcate and the spectral information of sampled point correction with the sampled point that obtains said scene.
When first lens 111 were selected, the aperture was big more, and the luminous flux that can give multispectral acquisition system promotes high more.The selection of first lens, 111 focal lengths is chosen according to the field depth of required scene.In one embodiment of the invention, first lens 111 are selected the biconvex lens of diameter 50mm, focal length 150mm for use.
When second lens 112 were selected, the size in aperture should be able to contain the scope of scene, and scene domain depends primarily on distance and the camera lens focal length between lens and the camera.The focal length of second lens 112 mainly influences the size of the sampling mask on the image space and the whole size of multispectral acquisition system.In one embodiment of the invention, second lens 112 are selected the biconvex lens of diameter 40mm, focal length 100mm for use.
In the sampling mask device 120, the whole size design of mask needs with reference to the focal length of the camera lens of the focal length of second lens 112 and camera and camera ccd array size.
The design of aperture is as shown in Figure 2 on the mask, and hash is being arranged intensive aperture on the mask, is used to realize the sampling for scene.In one embodiment of the invention, select for use the aperture to be of a size of the high 100um of wide 25um, the adjacent apertures spacing is 350um.
Light gets into the Prism spectroscopes 130 of rear ends through image-forming objective lens device 110 back, and then chromatic dispersion is the spectrum on the different wave length, and on the camera arrangement 140 of rear end imaging to generate image to be calibrated.
In one embodiment of the invention, to select 40*40*15mm, high 40mm, refractive index for use be that 1.608 flint glass and 40*40*18mm, high 40mm, refractive index are that 1.515 crown glass is built two Amici Prisms of formation to Prism spectroscope 130.
Amici Prism is made up of two triangular prisms, and first triangular prism is that medium crown glass is processed by dispersive power usually, and second then with the flint glass manufacturing of high chromatic dispersion.Reflected earlier when light gets into first prism, got into two interfaces between the prism then, again almost to penetrate perpendicular to the direction of second prism surface.The angle of prism and material be through selecting, and makes the light of one of them wavelength (color), and the wavelength at center normally is parallel with the light beam of incident when leaving prism.The angle of other wavelength deflections is then relevant with the dispersive power of material.Observe an optical spectra that just can demonstrate light source through the light source of prism.Amici Prism can be and then another duplicate but the Amici Prism that is inverted.The combination of this three prisms usually by as two Amici Prisms, can increase the angle and the effect of chromatic dispersion, and can be with useful composition, and the wavelength at center is on the path of bounce back incident.Use two Amici Prisms to carry out the chromatic dispersion beam split, can be under the condition that does not change radiation direction chromatic dispersion light, and be reduced to image distortion simultaneously.
Carrying out sampled point through the image to be calibrated that camera arrangement 140 is generated demarcates and the spectral information of sampled point correction with the sampled point that obtains said scene.Wherein, sampled point demarcation and sampled point are proofreaied and correct and are included but are not limited to: geometric calibration, geometry correction, spectrum correction and intensity correction.
In one embodiment of the invention; Use fluorescent light as standard sources; Gather for the fluorescent light line spectrum; Because the fluorescent light line spectrum has two tangible spikes at 546.5nm and 611.6nm place, these data capable of using are carried out geometric calibration for the collection result of scene, the keystone correction that the method for use trigonometric interpolation is brought the prism variable thickness.
In one embodiment of the invention; Use fluorescent light as standard sources, gather, because the light spectrum of fluorescent light has two tangible spikes at 546.5nm and 611.6nm place for the fluorescent light line spectrum; Available this positional information of 2 is as the reference mark; Carry out spectrum calibration for the spectrum that collects, in its implementation procedure, adopt method based on the B-spline curves interpolation.
According to the multispectral acquisition system of the embodiment of the invention, can realize adjusting, bigger field depth and the multispectral data collection of luminous flux, the device complexity is lower, compacter, can guarantee high resolving power simultaneously, obtains high-quality light spectrum image-forming result.
Fig. 3 is the schematic layout pattern of the multispectral acquisition system of one embodiment of the invention; Wherein, The image-forming objective lens device is made up of first lens and second lens, and first lens are selected the biconvex lens of diameter 50mm, focal length 150mm for use, and second lens are selected the biconvex lens of diameter 40mm, focal length 100mm for use.Sampling mask device selects for use the aperture to be of a size of the high 100um of wide 25um, and the adjacent apertures spacing is the sampling mask of 350um.It is that 1.608 flint glass and 40*40*18mm, high 40mm, refractive index are two Amici Prisms that crown glass constituted of 1.515 that Prism spectroscope is selected 40*40*15mm, high 40mm, refractive index for use.License plate arrangement is selected high resolving power black and white camera for use.
As shown in Figure 4, the multispectral acquisition method according to the embodiment of second aspect present invention comprises the steps:
S401: scene light is once converged transmission with the generation transmitted ray through the image-forming objective lens device, and utilize sampling mask device that scene is carried out spatial sampling, said throw light is incident to the Prism spectroscope that is positioned at said image-forming objective lens device rear end.
The image-forming objective lens device comprises first lens and second lens.When first lens were selected, it is high more that the aperture can give the luminous flux lifting of system more greatly, and the selection of first focal length of lens is chosen according to required field depth.When second lens are selected, the size in aperture should be able to contain can scene scope, this point depends primarily on distance and the camera lens focal length between lens and the camera.The focal length of second lens mainly influences the size and the entire system size of the mask on the image space.Sampling mask device is placed at imaging plane place between first lens and second lens, carries out spatial sampling for scene, and purpose is only to allow the light of sampled point to pass through.
S402: Prism spectroscope is the spectrum on a plurality of wavelength with the transmitted ray chromatic dispersion.
In one embodiment of the invention, Prism spectroscope is selected two Amici Prisms for use.Light get into two Amici Prisms of rear end, and then chromatic dispersion is the spectrum on the different wave length through behind the image-forming objective lens device.
S403: chromatic dispersion is that the camera arrangement of the rear end of spectrum through being positioned at Prism spectroscope on a plurality of wavelength is carried out to picture to generate image to be calibrated.
In one embodiment of the invention, camera arrangement adopts high resolving power black and white camera.Chromatic dispersion is that the high resolving power black and white camera of the rear end of spectrum through being positioned at Prism spectroscope on a plurality of wavelength is carried out to picture to generate image to be calibrated.
S404: utilize the spectra collection caliberating device that said image to be calibrated is carried out sampled point and demarcate and the spectral information of sampled point correction with the sampled point that obtains said scene.
Sampled point is demarcated and the sampled point correction includes but are not limited to: geometric calibration, geometry correction, spectrum correction and intensity correction.
Fig. 5 is the gatherer process synoptic diagram of the multispectral acquisition method of one embodiment of the invention.
In one embodiment of the invention; Use fluorescent light as standard sources; Gather for the fluorescent light line spectrum; Because the fluorescent light line spectrum has two tangible spikes at 546.5nm and 611.6nm place, these data capable of using are carried out geometric calibration for the collection result of scene, the keystone correction that the method for use trigonometric interpolation is brought the prism variable thickness.
In one embodiment of the invention; Use fluorescent light as standard sources, gather, because the light spectrum of fluorescent light has two tangible spikes at 546.5nm and 611.6nm place for the fluorescent light line spectrum; Available these 2 as the reference mark; Carry out spectrum calibration for the spectrum that collects, in its implementation procedure, adopt method based on the B-spline curves interpolation.
According to the multispectral acquisition method of the embodiment of the invention, can realize adjusting, bigger field depth and the multispectral data collection of luminous flux, can guarantee high resolving power simultaneously, obtain high-quality light spectrum image-forming result.
Describe and to be understood that in the process flow diagram or in this any process otherwise described or method; Expression comprises module, fragment or the part of code of the executable instruction of the step that one or more is used to realize specific logical function or process; And the scope of preferred implementation of the present invention comprises other realization; Wherein can be not according to order shown or that discuss; Comprise according to related function and to carry out function by the mode of basic while or by opposite order, this should be understood by the embodiments of the invention person of ordinary skill in the field.
In process flow diagram the expression or in this logic of otherwise describing and/or step; For example; Can be considered to be used to realize the sequencing tabulation of the executable instruction of logic function; May be embodied in any computer-readable medium; Use for instruction execution system, device or equipment (like computer-based system, comprise that system or other of processor can be from the systems of instruction execution system, device or equipment instruction fetch and execution command), or combine these instruction execution systems, device or equipment and use.With regard to this instructions, " computer-readable medium " can be anyly can comprise, storage, communication, propagation or transmission procedure are for instruction execution system, device or equipment or combine these instruction execution systems, device or equipment and the device that uses.The example more specifically of computer-readable medium (non-exhaustive list) comprises following: the electrical connection section (electronic installation) with one or more wirings; Portable computer diskette box (magnetic device); Random-access memory (ram), ROM (read-only memory) (ROM) can be wiped and can edit ROM (read-only memory) (EPROM or flash memory); Fiber device, and portable optic disk ROM (read-only memory) (CDROM).In addition; Computer-readable medium even can be paper or other the suitable media that to print said program above that; Because can be for example through paper or other media are carried out optical scanning; Then edit, decipher or handle to obtain said program with other suitable methods in case of necessity with the electronics mode, then it is stored in the computer memory.
Should be appreciated that each several part of the present invention can use hardware, software, firmware or their combination to realize.In the above-described embodiment, a plurality of steps or method can realize with being stored in the storer and by software or firmware that suitable instruction execution system is carried out.For example; If realize with hardware; The same in another embodiment, each in the available following technology well known in the art or their combination realize: have the discrete logic that is used for data-signal is realized the logic gates of logic function, have the special IC of suitable combinational logic gate circuit; Programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that and realize that all or part of step that the foregoing description method is carried is to instruct relevant hardware to accomplish through program; Described program can be stored in a kind of computer-readable recording medium; This program comprises one of step or its combination of method embodiment when carrying out.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing module, also can be that the independent physics in each unit exists, and also can be integrated in the module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If said integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.
The above-mentioned storage medium of mentioning can be a ROM (read-only memory), disk or CD etc.In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described embodiments of the invention above; It is understandable that; The foregoing description is exemplary; Can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change the foregoing description under the situation that does not break away from principle of the present invention and aim within the scope of the invention, modification, replacement and modification.
Claims (13)
1. a multispectral acquisition system is characterized in that, comprising:
The image-forming objective lens device is used for scene light through once converging transmission to generate transmitted ray, and wherein, said image-forming objective lens device comprises first lens and second lens;
Sampling mask device, the imaging plane place between said first lens and said second lens is used for scene is carried out spatial sampling;
Prism spectroscope is positioned at the rear end of said image-forming objective lens device, and being used for the said transmitted ray chromatic dispersion through said image-forming objective lens device is the spectrum on a plurality of wavelength;
Camera arrangement is positioned at the rear end of said Prism spectroscope, and being used for said chromatic dispersion is that spectrum on a plurality of wavelength is carried out to picture to generate image to be calibrated;
The spectra collection caliberating device is positioned at the rear end of said camera arrangement, is used for that said image to be calibrated is carried out sampled point and demarcates and the spectral information of sampled point correction with the sampled point that obtains said scene.
2. multispectral acquisition system as claimed in claim 1 is characterized in that, said first lens are carried out to picture through changing focal length with the different field depths to said scene.
3. multispectral acquisition system as claimed in claim 1 is characterized in that, said first lens and said second lens are biconvex lens.
4. multispectral acquisition system as claimed in claim 1 is characterized in that, hash is furnished with the multiple row through hole on the said sampling mask device.
5. multispectral acquisition system as claimed in claim 1 is characterized in that, said Prism spectroscope is two Amici Prism light-dividing devices.
6. multispectral acquisition system as claimed in claim 1 is characterized in that, said camera arrangement is a high resolving power black and white camera.
7. multispectral acquisition system as claimed in claim 1; It is characterized in that; Said image to be calibrated is carried out the sampled point demarcation to said spectra collection caliberating device and sampled point is proofreaied and correct, and comprises said image to be calibrated is carried out sampled point geometric calibration, geometry correction, spectrum correction and intensity correction.
8. like claim 1 or 7 described multispectral acquisition systems, it is characterized in that, said spectra collection caliberating device through to the collection of fluorescent light line spectrum so that said image to be calibrated is carried out spectrum calibration.
9. multispectral acquisition system as claimed in claim 8 is characterized in that, said spectra collection caliberating device adopts and based on the method for B-spline curves interpolation said image to be calibrated carried out spectrum calibration.
10. a multispectral acquisition method is characterized in that, comprises the steps:
Scene light is once converged transmission with the generation transmitted ray through the image-forming objective lens device, and utilize sampling mask device that scene is carried out spatial sampling, said throw light is incident to the Prism spectroscope that is positioned at said image-forming objective lens device rear end;
Said Prism spectroscope is the spectrum on a plurality of wavelength with said transmitted ray chromatic dispersion;
Said chromatic dispersion is that the camera arrangement of the rear end of spectrum through being positioned at said Prism spectroscope on a plurality of wavelength is carried out to picture to generate image to be calibrated; And
Utilizing the spectra collection caliberating device that said image to be calibrated is carried out sampled point demarcates and the spectral information of sampled point correction with the sampled point that obtains said scene.
11. multispectral acquisition method as claimed in claim 10 is characterized in that, the said spectra collection caliberating device that utilizes carries out sampled point demarcation and sampled point correction to said image to be calibrated, comprises the steps:
Said spectra collection caliberating device carries out sampled point geometric calibration, geometry correction, spectrum correction and intensity correction to said image to be calibrated.
12. like claim 10 or 11 described multispectral acquisition methods, it is characterized in that, said spectra collection caliberating device through to the collection of fluorescent light line spectrum so that said image to be calibrated is carried out spectrum calibration.
13. multispectral acquisition method as claimed in claim 12 is characterized in that, said spectra collection caliberating device adopts and based on the method for B-spline curves interpolation said image to be calibrated is carried out spectrum calibration.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792005A (en) * | 2014-03-06 | 2014-05-14 | 西安电子科技大学 | Wide-band two-dimension dispersion high-speed imaging spectrometer |
| CN103940511A (en) * | 2014-04-03 | 2014-07-23 | 清华大学 | Spectrum line calibration method and device for hyper-spectrum acquisition system |
| CN105651384A (en) * | 2016-01-13 | 2016-06-08 | 南京大学 | Full-light information collection system |
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| CN107655571A (en) * | 2017-09-19 | 2018-02-02 | 南京大学 | A kind of spectrum imaging system obscured based on dispersion and its spectrum reconstruction method |
| WO2022042084A1 (en) * | 2020-08-31 | 2022-03-03 | 清华大学深圳国际研究生院 | Device and method for quickly acquiring high-resolution spectral image |
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| CN114279568A (en) * | 2022-03-04 | 2022-04-05 | 清华大学 | Multispectral imaging method, device and equipment for encoding compression based on chromatic dispersion |
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