CN102200476B - Data collecting method for X-Y galvanometer scanning ultra-spectral image - Google Patents
Data collecting method for X-Y galvanometer scanning ultra-spectral image Download PDFInfo
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- CN102200476B CN102200476B CN2011100222499A CN201110022249A CN102200476B CN 102200476 B CN102200476 B CN 102200476B CN 2011100222499 A CN2011100222499 A CN 2011100222499A CN 201110022249 A CN201110022249 A CN 201110022249A CN 102200476 B CN102200476 B CN 102200476B
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Abstract
The invention discloses a data collecting method for an X-Y galvanometer scanning ultra-spectral image, relating to the data collecting for ultra-spectral images. The method disclosed by the invention comprises the following steps: a probe and a to-be-measured object are placed on the two sides of the field lens respectively and in conjugate positions, and a galvanometer X and galvanometer Y are arranged between the probe and field lens; the reflected light is obtained at the target position on the measured object surface; the reflected light enters into the probe through the field lens, galvanometer X and galvanometer Y and is led into the spectrograph; the galvanometer X and galvanometer Y are controlled to scan so as to obtain the reflection spectrum including all positions in the pre-set areas on the measured object surface so as to get the reflection ultra-spectral image of the measured object surface. The invention has the advantages of simple and stable mechanical system, large scanning field, high resolution, good practicability and low costs.
Description
Technical field
The present invention relates to the collection to the hyper-spectral data, particularly a kind of X-Y vibration mirror scanning type hyper-spectral collecting method has simple in structurely, and the scanning field of view scope is big, system stability, and spectrally resolved power is high, and is practical, the characteristics that cost is low.
Background technology
The ultraphotic spectral technology is that a kind of light harvesting, mechanical, electrical and computing machine are in the technology of one.It can form images to same target on the continuous light spectral coverage simultaneously, can directly reflect by the spectral signature of observed objects, even the material composition of body surface, therefore high using value is all arranged in fields such as military affairs, industry, agricultural, medical science.
Present ultraphotic spectral technology is divided into according to scan mode: rotary scanning type and face battle array push-broom type dual mode.Wherein, the collection system of rotary scanning type imaging system forms a very little angle---instantaneous field of view angle to the space, and the measured object radiation energy in instantaneous field of view reflexes to the spectrum collection system by rotating mirror and obtains whole tested object height spectral information.The advantage of this method is that scanning field of view is big, and operating efficiency is high.The MAIS of the MIVIS that the U.S. is arranged of this method of utilization and DAIS, China and OMIS etc. in the space flight.Face battle array push-broom type scans high spectrum acquisition methods and normally moves perhaps spectrum deriving means translation realization measured object reflection hyper-spectral data acquisition by means of the measured object platform, and this method field range is little.
It is more that face battle array push-broom type scans high spectrum acquisition methods utilization at present.In space flight; Face battle array push-broom type scans high spectrum acquisition methods and normally moves along heading by means of remote-sensing flatform and reach ground with the optical-mechanical transversal scanning of remote sensor own and cover; Thereby obtain the imaging device of ground histogram picture, like the multispectral scanner (MSS) on the U.S. road resource satellite Landsat.In the agricultural; Chinese patent (the applying date: on Dec 9th, 2005; Application number: 200520099328.X, fruit high spectrum image harvester) a kind of fruit high spectrum image harvester has been proposed, realize whole apple two dimensional image and spectrum data gathering through tested fruit translation; Also proposed the push-broom type ultra-optical spectrum tongue state capturing instrument in the prior art,, realized pushing away line by line of tongue body swept, obtained the ultraphotic spectrum data of whole tongue body at last through the translation of utilization time schedule controller control optical imaging system.The application of above-mentioned high spectrum in space flight, agricultural, medical science all is to have adopted the scanning of face battle array push-broom type to obtain measured surface reflection hyper-spectral data.
Though face battle array push-broom type method has all obtained good result in every field, there is the shortcoming that integral mechanical structure is big, cost is high, the scanning field of view scope is little in the push-broom type system.
Summary of the invention
For the complexity that reduces mechanical system structure, enlarge the scanning field of view scope and reduce cost, the invention provides a kind of X-Y vibration mirror scanning type hyper-spectral collecting method, said method comprising the steps of:
(1) probe and the testee image conjugate position in the both sides of field lens respectively, installation X galvanometer and Y galvanometer between said probe and said field lens;
(2) obtain reflected light in the target location on testee surface;
(3) said reflected light gets into said probe behind said field lens, said Y galvanometer and said X galvanometer, and the reflected light that gets into said probe imports to spectrometer;
(4) said X galvanometer of control and said Y vibration mirror scanning obtain the reflectance spectrum of all positions in the predeterminable area of testee surface, thereby get access to said testee surface reflection hyper-spectral.
Said target location on the testee surface in the step (2) is obtained reflected light, is specially:
Light source gets into the target location that said probe, said X galvanometer, said Y galvanometer and said field lens shine said testee surface through (A) end of y-type optical fiber, reflects in said target location, obtains said reflected light.
Said target location on the testee surface in the step (2) is obtained reflected light, is specially:
Ambient lighting light reflects in the target location on said testee surface, obtains said reflected light.
Said reflected light in the step (3) gets into said probe behind said field lens, said Y galvanometer and said X galvanometer, the reflected light that gets into said probe imports to spectrometer, is specially:
Said reflected light gets into said probe behind said field lens, said Y galvanometer and said X galvanometer, the said reflected light that gets into said probe imports to said spectrometer via (B) end of y-type optical fiber.
Said reflected light in the step (3) gets into said probe behind said field lens, said Y galvanometer and said X galvanometer, the reflected light that gets into said probe imports to spectrometer, is specially:
Said reflected light gets into said probe behind said field lens, said Y galvanometer and said X galvanometer, the said reflected light that gets into said probe imports to said spectrometer via optical fiber.
The beneficial effect of technical scheme provided by the invention is:
The invention provides a kind of X-Y vibration mirror scanning type hyper-spectral collecting method; This method can import to the reflected light of each point in the predeterminable area of testee surface in the spectrometer through probe through the scanning of X galvanometer and Y galvanometer; Obtain the reflectance spectrum on testee surface, finally obtain the reflection hyper-spectral in the predeterminable area of testee surface.Make that through this method mechanical system structure is simple, stable, big, the spectrally resolved power of scanning field of view scope is high, practical and cost is low.
Description of drawings
Fig. 1 is a structural representation provided by the invention;
Fig. 2 is another structural representation provided by the invention;
Fig. 3 is the process flow diagram of X-Y vibration mirror scanning type hyper-spectral collecting method provided by the invention.
The list of parts of each label representative is following in the accompanying drawing:
1: spectrometer 2: optical fiber
3: probe 4:X galvanometer
5:Y galvanometer 6: field lens
7: testee 8: light source
9:Y type optical fiber
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.
For the complexity that reduces mechanical system structure, enlarge the scanning field of view scope and reduce cost, the embodiment of the invention provides a kind of X-Y vibration mirror scanning type hyper-spectral collecting method, referring to Fig. 1, Fig. 2 and Fig. 3, sees hereinafter for details and describes:
101: probe 3 and testee 7 be the image conjugate position in the both sides of field lens 6 respectively, and X galvanometer 4 and Y galvanometer 5 are installed between probe 3 and field lens 6;
102: the target location on testee 7 surfaces is obtained reflected light;
103: reflected light gets into probe 3 behind field lens 6, Y galvanometer 5 and X galvanometer 4, and the reflected light that gets into probe 3 imports to spectrometer 1;
104: control X galvanometer 4 and 5 scannings of Y galvanometer, obtain the reflectance spectrum of all positions in the testee 7 surperficial predeterminable areas, thereby get access to testee 7 surface reflection hyper-spectrals.
Wherein, predeterminable area delimited according to the practical application needs, and when specifically realizing, the embodiment of the invention does not limit this.Through control X galvanometer 4 and Y galvanometer 5, obtain the reflectance spectrum of all positions in the testee 7 surperficial predeterminable areas.
Promptly got access to the reflection hyper-spectral on testee 7 surfaces through above-mentioned steps 101-step 104.
Wherein, the target location on testee 7 surfaces in the step 102 is obtained reflected light, is specially:
Ambient lighting light reflects in the target location on testee 7 surfaces, obtains reflected light.
Wherein, the reflected light in the step 103 gets into probe 3 behind field lens 6, Y galvanometer 5 and X galvanometer 4, and the reflected light that gets into probe 3 imports to spectrometer 1, is specially:
Reflected light gets into probe 3 behind field lens 6, Y galvanometer 5 and X galvanometer 4, the reflected light of entering probe 3 imports to spectrometer 1 via the B end of y-type optical fiber 9; Or,
Reflected light gets into probe 3 behind field lens 6, Y galvanometer 5 and X galvanometer 4, the reflected light that gets into probe 3 imports to spectrometer 1 via optical fiber 2.
With two concrete embodiment X-Y vibration mirror scanning type hyper-spectral collecting method provided by the invention is described below, is seen for details hereinafter and describe:
Embodiment 1: as shown in Figure 1, probe 3 and testee 7 be the image conjugate position in the both sides of field lens 6 respectively, and X galvanometer 4 and Y galvanometer 5 are installed between probe 3 and field lens 6; Ambient lighting light reflects in the target location on testee 7 surfaces, obtains reflected light; Reflected light gets into probe 3 behind field lens 6, Y galvanometer 5 and X galvanometer 4, the reflected light that gets into probe 3 imports to spectrometer 1 via optical fiber 2; 1 pair of reflected light of spectrometer is sampled, and obtains reflectance spectrum; Through control X galvanometer 4 and Y galvanometer 5, obtain the reflectance spectrum of all positions in the testee 7 surperficial predeterminable areas, thereby get access to testee 7 surface reflection hyper-spectrals.
Embodiment 2: as shown in Figure 2, probe 3 and testee 7 be the image conjugate position in the both sides of field lens 6 respectively, and X galvanometer 4 and Y galvanometer 5 are installed between probe 3 and field lens 6; Light source 8 gets into the target location that probe 3, X galvanometer 4, Y galvanometer 5 and field lens 6 shine testee 7 surfaces through the A end of y-type optical fiber 9, reflects in target location, obtains reflected light; Reflected light gets into probe 3 behind field lens 6, Y galvanometer 5 and X galvanometer 4, the reflected light of entering probe 3 imports to spectrometer 1 via the B end of y-type optical fiber 9; 1 pair of reflected light of spectrometer is sampled, and obtains reflectance spectrum; Through control X galvanometer 4 and Y galvanometer 5, obtain the reflectance spectrum of all positions in the testee 7 surperficial predeterminable areas, thereby get access to testee 7 surface reflection hyper-spectrals.
In sum; The embodiment of the invention provides a kind of X-Y vibration mirror scanning type hyper-spectral collecting method; This method can import to the reflected light of each point in the predeterminable area of testee surface in the spectrometer through probe through the scanning of X galvanometer and Y galvanometer; Obtain the reflectance spectrum on testee surface, finally obtain the reflection hyper-spectral in the predeterminable area of testee surface.Make that through this method mechanical system structure is simple, stable, big, the spectrally resolved power of scanning field of view scope is high, practical and cost is low.
It will be appreciated by those skilled in the art that accompanying drawing is the synoptic diagram of a preferred embodiment, the invention described above embodiment sequence number is not represented the quality of embodiment just to description.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. an X-Y vibration mirror scanning type hyper-spectral collecting method is characterized in that, said method comprising the steps of:
(1) probe and testee are installed X galvanometer and Y galvanometer respectively in object-image conjugate position, the both sides of field lens between said probe and said field lens;
(2) obtain reflected light in the target location on testee surface;
(3) said reflected light gets into said probe behind said field lens, said Y galvanometer and said X galvanometer, and the reflected light that gets into said probe imports to spectrometer;
(4) said X galvanometer of control and said Y vibration mirror scanning obtain the reflectance spectrum of all positions in the predeterminable area of testee surface, thereby get access to said testee surface reflection hyper-spectral.
2. X-Y vibration mirror scanning type hyper-spectral collecting method according to claim 1 is characterized in that, the said target location on the testee surface in the step (2) is obtained reflected light, is specially:
Light source gets into the target location that said probe, said X galvanometer, said Y galvanometer and said field lens shine said testee surface through the A end of y-type optical fiber, reflects in said target location, obtains said reflected light.
3. X-Y vibration mirror scanning type hyper-spectral collecting method according to claim 1 is characterized in that, the said target location on the testee surface in the step (2) is obtained reflected light, is specially:
Ambient lighting light reflects in the target location on said testee surface, obtains said reflected light.
4. X-Y vibration mirror scanning type hyper-spectral collecting method according to claim 1; It is characterized in that; Said reflected light in the step (3) gets into said probe behind said field lens, said Y galvanometer and said X galvanometer, the reflected light that gets into said probe imports to spectrometer, is specially:
Said reflected light gets into said probe behind said field lens, said Y galvanometer and said X galvanometer, the said reflected light that gets into said probe imports to said spectrometer via the B end of y-type optical fiber.
5. X-Y vibration mirror scanning type hyper-spectral collecting method according to claim 1; It is characterized in that; Said reflected light in the step (3) gets into said probe behind said field lens, said Y galvanometer and said X galvanometer, the reflected light that gets into said probe imports to spectrometer, is specially:
Said reflected light gets into said probe behind said field lens, said Y galvanometer and said X galvanometer, the said reflected light that gets into said probe imports to said spectrometer via optical fiber.
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| CN102200476B true CN102200476B (en) | 2012-07-25 |
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| CN105044131B (en) * | 2015-08-14 | 2017-12-12 | 中国科学院上海光学精密机械研究所 | Optical elements of large caliber element surface damage detection device and method |
| TWI781243B (en) * | 2018-10-31 | 2022-10-21 | 國立清華大學 | Cascaded mirror array and scanning system thereof |
| CN110095187A (en) * | 2019-05-17 | 2019-08-06 | 中北大学 | A kind of micro spectral imaging device based on the micro- galvanometer of MEMS and grating |
| CN115980986B (en) * | 2022-12-12 | 2024-03-22 | 之江实验室 | Zoom optical system, control method and control device of zoom optical system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101135776A (en) * | 2007-02-15 | 2008-03-05 | 苏州苏大维格数码光学有限公司 | Diffraction color changing laser marking method and apparatus thereof |
| CN101458212A (en) * | 2009-01-04 | 2009-06-17 | 北京心润心激光医疗设备技术有限公司 | Real-time imaging optical coherent chromatography skin diagnostic device |
| CN101574697A (en) * | 2009-06-15 | 2009-11-11 | 长春理工大学 | Portable all solid state dual wavelength laser cleaner |
| CN101711667A (en) * | 2009-11-26 | 2010-05-26 | 浙江大学 | Quick detecting method and system for acousto-optic gated spectra of spectral domain OCT |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101135776A (en) * | 2007-02-15 | 2008-03-05 | 苏州苏大维格数码光学有限公司 | Diffraction color changing laser marking method and apparatus thereof |
| CN101458212A (en) * | 2009-01-04 | 2009-06-17 | 北京心润心激光医疗设备技术有限公司 | Real-time imaging optical coherent chromatography skin diagnostic device |
| CN101574697A (en) * | 2009-06-15 | 2009-11-11 | 长春理工大学 | Portable all solid state dual wavelength laser cleaner |
| CN101711667A (en) * | 2009-11-26 | 2010-05-26 | 浙江大学 | Quick detecting method and system for acousto-optic gated spectra of spectral domain OCT |
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