Hyperspectral imaging sensor tekinoroji iri kuwedzera mukurumbira muzvikamu zvakaita sekurima, indasitiri, mishonga, uye chengetedzo, nekuda kwekugona kwayo kuona kupfuura zvinoonekwa. Kunyange zvazvo zita rayo rinogona kunzwika rakaoma, kushanda kwayo kunobva pamitemo ye optical inobvumira zvinhu uye zvinhu kuti zvionekwe kuburikidza nemaitiro avo ekuona.
Muchinyorwa chino, isu tichaongorora kuti chii chaizvo chinonzi hyperspectral image sensor, kuti inosiyana sei kubva kune mamwe marudzi emasensa akadai semultispectral sensors, maitiro avo ehunyanzvi, uye mashandisiro awo makuru. Tichaongororawo zvakanakira tekinoroji iyi uye matambudziko ayo aripo.
Chii chinonzi hyperspectral image sensor?
Un hyperspectral sensor Ichi chishandiso chinokwanisa kutora mifananidzo ine ruzivo rwakadzama kubva kumazana emabhendi e spectral nguva dzose, kazhinji muhuwandu hweiyo electromagnetic spectrum inoenda kubva ultraviolet (350 nm) kusvikira pedyo nepakati-infrared (kusvika 2500 nm).
Chii chinosiyanisa tekinoroji iyi ndechekuti Pixel yega yega mumufananidzo wakagadzirwa ine yakazara spectrum, iyo inobvumira zvinhu kuti zvionekwe ne "spectral siginecha" yavo yakasiyana. Aya masiginicha anotarisisa anoratidza chimiro chemuviri uye chemakemikari echinhu chiri kucherechedzwa, zvichiita kuti hyperspectral sensor ive chaiyo uye isiri-inoparadza chishandiso chekuzivikanwa kwakadzama uye kutarisa kwezvinhu, machira, kana zvinhu.
Hyperspectral imaging inoshanda sei?
La hyperspectral imaging Inosanganisira kutora uye kugadzirisa ruzivo kubva kune electromagnetic spectrum inoratidzwa kana kuburitswa nezvinhu. Iyo sensor inopatsanura iyi spectrum muhuwandu hwemabhendi akatetepa akabatana, achigadzira matatu-dimensional mufananidzo unozivikanwawo se. hyperspectral cube, ine mativi maviri enzvimbo uye imwe spectral dimension.
Iyi "cube" inobvumira kuongororwa kwekusimba kwechiedza pamawavelength akasiyana epixel yega yega mumufananidzo. Izvi zvinoguma mune yakasarudzika spectral mbiri kune yega yega inocherechedzwa, ichipa hukuru hwerusarura pakati pezvinhu zvinogona kutaridzika zvakafanana nemeso.
Chikumbiro chakajeka chinogona kuva kuona chikamu chakaora chemuchero pasina kudikanwa kwekuicheka, sezvo spectral zvimiro zvehutano uye zvakakuvara zvinyama zvakasiyana kunyange kana zvisingaonekwi.
Yakasiyana sei nemultispectral sensors?
Multispectral sensors zvakare inotora ruzivo rwekuona asi ita saizvozvo muhuwandu hushoma hwemabhendi, kazhinji 5 a 10, izvo zvisingarevi hazvo kudhumhana. Aya mabhendi anowanzo sanganisira mabhendi anooneka (tsvuku, girini, uye bhuruu) uye mamwe ari pedyo-infrared mabhendi.
Hyperspectral sensors, kune rumwe rutivi, rekodha mazana akamanikana chaizvo uye contiguous mabhendi, iyo inopa a yakanyanya kukwirisa spectral resolution. Nekuda kweizvi, hyperspectral sensors inogona kunyatso ziva iyo makemikari zvinyorwa kana kuona zvinhu zvine zvimiro zvakafanana, chimwe chinhu chaisazogoneka nema sensors akawanda.
Zvakanakira uye hunyanzvi hunhu hwe hyperspectral tekinoroji
Hyperspectral masisitimu inopa akati wandei ehunyanzvi mabhenefiti anoita kuti ave akasiyana kune epamberi maapplication:
- Kuyera kusingabatanidzwe: Sezvo aya ari makamera, ruzivo runogona kutorwa pasina kubata chinhu.
- Nzira isingaparadzi: chinhu hachishandurwi kana kukuvadzwa kana chikaongororwa.
- High specificity: inobvumira kusiyanisa kunyange misiyano mishoma pakati pezvinhu zvakafanana zvakanyanya, nekuda kwekugadziriswa kwayo kwepamusoro.
- Mikana yekuyera-nguva chaiyo: Kune zvigadziriso zvinokutendera iwe kutora uye kuongorora mifananidzo ipapo, kunyangwe munzvimbo dzeindasitiri.
- Kusiyana-siyana mumamiriro ekuvhenekera: Dzinogona kugadzirwa kuti dzishande nemhando dzakasiyana dzemwenje, senge infrared kana controlled light.
Kana ari matekinoroji anoshandiswaPane dzimwe nzira dzakawanda. Mamwe makamera anoshandisa Fabry-Perot type interferometric filters inoshandiswa zvakananga kune sensors, iyo inobvumira kuti sisitimu iite miniaturized, inoderedza mari, uye inoita kuti iwedzere kutakurika. Vamwe vanoshandisa ma scanning matekiniki akadai "push-broom", iyo inosanganisira kutora mutsara wechinhu panguva imwe neimwe, kufambisa sensor kuti ivake mufananidzo wakazara.
Spectral uye spatial kugadziriswa
Chimwe chezvinhu zvine simba zve hyperspectral sensors ndeyekukwira kwavo spectral resolution, iyo inobvumira kusiyanisa pakati pewavelengths nekuparadzaniswa kuduku, kunyange 10 kusvika 20 nmIzvi zvinoshandura muhukuru hukuru hwekuziva masiginecha e spectral.
Zvisinei, mukana uyu kazhinji unoperekedzwa nea kudzika kwenzvimbo kugadzirisa, sezvo huwandu hwe data iyo sensor inoda kutora inowedzera nekuwedzera kweakawanda mabhendi e spectral. Kusiyana neizvi, ma sensors akawanda anowanzo ane mabhendi mashoma asi anoatora nehukuru hwekugadzirisa nzvimbo.
Saizi, kugadzirisa data uye kuoma
Huwandu hwemashoko anogadzirwa nemifananidzo ye hyperspectral yakakura. Iyi i data-dimensional data inoda a yakaoma computational processing uye specialized software. Kuongorora uku kunowanzobatanidza maitiro e chemometrics kana muchina kudzidza algorithms kuona mapatani muma spectral siginicha.
Naizvozvo, rimwe rematambudziko aripo eiyi tekinoroji ndeye kuchengetedza kwakanaka uye kukurumidza kuongorora dataSezvineiwo, mhinduro dzakawanda uye dzakawanda dziri kubuda dzinoita kuti zvishandiso izvi zvive nyore kushandisa, kunyangwe mumaindasitiri kana minda.
Ndeipi nguva yekushandisa hyperspectral sensors inopesana neayo akawanda?
Sarudzo pakati peiyi tekinoroji zvinoenderana nechinangwa chekupedzisira. Multispectral sensors ivo vanowanzo zvakachipa, zvinokurumidza kuita uye zvisinganyanyi kuoma, ichiita kuti ive yakakodzera kumabasa uko yakanyanyisa spectral tsanangudzo haidiwe.
Zvisinei, kana kuongorora kunoda kurongeka kwepamusoro uye kusiyanisa kwakanaka pakati pezvinhu, sezvazvakaita mu biomedicine, kutaridzika kwehutano kana mineralological identification, ipapo hyperspectral sensor inonyatsokodzera.
Muzviitiko zvakawanda, matekinoroji ese ari maviri anogona kusanganiswa kuti atore mukana weawo mabhenefiti.
Kunyanya kucherechedzwa kwekushandisa kwe hyperspectral imaging
Hyperspectral sensors ine rondedzero inokura yemashandisirwo, kusanganisira:
- Zvekurima nezvirimwa: Kuongororwa kwehutano hwekudyara, chirwere kana kuona kushushikana kwemvura, kuongororwa kwekudya, uye mepu yemarudzi.
- Indasitiri yechikafu: non-invasive quality control, kuonekwa kwemuviri wekunze, kuongororwa kwekudya uye automated classification.
- Mushonga uye bioscience: Kuongororwa kwetishu, kuongororwa kusingapindiki, kuona maronda kana kusakwana kwemasero.
- Migodhi uye geology: kunyatsoona zvicherwa, dhipoziti mepu, uye kuongorora ivhu.
- Kudzora kwezvakatipoteredza: kuonekwa kwezvinosvibisa mumvura nemumhepo, kuongorora matoro kana moto.
- Chengetedzo nekudzivirira: kuonekwa kwezvinhu zvakavanzika, zvinhu zvemakemikari kana kuongorora kwepamusoro.
- Archeology uye art: pigment analysis, kuchengetedzwa kwemabasa uye kuonekwa kwechitsotsi.
- Pharmaceutical industry: process control uye kuvimbiswa kwechigadzirwa.
Featured matekinoroji pamusika
Kune akasiyana matekinoroji uye mabhureki akagadzira chaiwo mhinduro dzekushandisa kwakasiyana. Semuyenzaniso:
- Nireos HERA: Inoshandisa Fourier kushandura (FT) spectroscopy, ichipa yakakwira spectral kunyatsoita uye kugadzikana kwakanyanya, kunyangwe mukudedera nharaunda dzeindasitiri.
- HAIP-Nhema: Iyo inovimba ne "push-broom" tekinoroji ine inogadziriswa yenzvimbo dzakasimba uye inotakurika masisitimu, senge makamera anobatwa nemaoko kana masisitimu akaiswa mumadrones.
- SILIOS: Inyanzvi mune snapshot-mhando multispectral makamera anobvumira akawanda mabhendi kutorwa panguva imwe chete nekuda kwema pixelated mafirita paCMOS kana InGaAs sensors.
Nekuda kwekufambira mberi uku, tekinoroji iyi iri kuramba ichichinjika, inochinjika, uye inowanikwa kune akawanda zvikamu.
Kugamuchirwa kwema hyperspectral sensors mundima dzakasiyana-siyana kunomiririra mukana wekuvandudza iyo inobvumira kunyatsojeka uye kwakadzama kuunganidza data, kufambisa zvirinani-ruzivo uye yakagadziridzwa sarudzo kune yega yega chikamu.
