Cov ntaub ntawv tsis ntim cov duab duab thiab nta cov cuab yeej ntes tshuab
Peb yog ib lub lag luam loj hauv Shenzhen Tuam Tshoj. Peb muaj cov phau ntawv luam tawm, phau ntawv nyuaj, phau ntawv luam ntawv, phau ntawv nyuaj, phau ntawv luam tawm, phau ntawv luam tawm, phau ntawv luam tawm, lub thawv ntim, daim qhia ntawv, txhua yam ntawm PVC, cov ntawv luam tawm, ntawv sau cia, hom tshwj xeeb ntawv xim luam tawm khoom, kev ua si cardand li ntawd.
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Nrog rau kev tsim cov tshuab luam ntawv thiab kev nce qib ntawm cov ntaub ntawv siv tshuab, luam tawm tau dav siv ntau yam lag luam. Cov ntaub ntawv luam tau maj maj los ntawm cov ntaub ntawv tshuaj rau cov yas, cov tawv, cov tais diav, iav thiab lwm cov ntaub ntawv. Nyob rau hauv lub era thaum lub dawm tau tsuas yog saib nyob rau hauv lub thawv txheem lub thawv, tus saib ntawm "environmental light source" tau dhau los ua ib lub caij tshiab ntawm cov menyuam yaus xim luam. Yog li ntawd, yuav tsum tsim kom muaj qhov tshwj xeeb thiab txoj kev ua kom tswj tau xim. Yuav ua li cas integrate qhov "environmental light source" rau hauv cov txheej txheem kev tswj xim thiab luam nws nrog lub virtual saib ntawm cov zaub thiab kev luam cov txheej txheem yog lub ntsiab lus tseem ceeb nyob rau hauv kev nthuav dav ntawm cov xim xim reproduction technology.
Lub Tsev Kawm Tshawb Nrhiav Cov Tsev Kawm Ntawv tau koom tes ua ke nrog University of Leeds hauv tebchaws United Kingdom hauv 101. Pab neeg tshawb fawb tau coj los ntawm Professor Luo Ming los kawm txog cov ntaub ntawv tsis muaj ntaub ntawv duab thiab kev ntes ntom ntom nta tshuab. Rau cov ntawv tsis yog cov ntawv luam tawm, cov ntaub ntawv xim siab raug siv. Kev tsim kho ntawm qhov muag pom simulation tag nrho nyob rau hauv ntau qhov chaw illumination muaj xws li high-order cov koob yees duab, ntau qhov kev ntsuas huab cua, kev txav ntawm cov kabmob, duab ua technologies, thiab ntxiv rau. Ua kom tiav cov yeeb yam ntawm cov ntawv tsis yog ntawv (pob zeb, textile) nto xim, zoo nkauj, gloss, thiab lwm yam, thiab ua kom tiav cov chaw lag luam. Professor Luo Ming thiab pab neeg tshawb nrhiav tau koom tes nrog Lub Chaw Tshawb Nrhiav Kev Tshawb Fawb rau ntau lub sij hawm los tsim cov kev yees duab yees duab thiab luam tawm, thiab los pab cov neeg lag luam hauv kev luam tawm hauv Chaw Tshaj Lij Lub Chaw Muag Khoom.
Cov xim thiab kev tshawb fawb ntawm University of Leeds hauv UK tsim tshwj xeeb hauv daim ntawv thov ntawm cov xim xim thiab kev tshawb xav, ntxiv rau kev siv, kev siv tshuab computer thiab tshuab kho vajtse, ua haujlwm xim thiab duab, thiab koom hauv cov xim ISO tshawb nrhiav haujlwm. Tib lub sij hawm, ntawm qhov tod tes, nws tau koom tes hauv cov hauj lwm ntawm pawg CIE Lighting thiab Optics Committee. Yog li, txoj kev tshawb fawb ntawm cov xim muaj qhov zoo los ntawm kev xav mus rau tus kheej-illumination. Nyob rau hauv xyoo tas los no, chav tsev tau txuas nws cov footsteps rau non-colour theory, tab sis psychological thiab ib puag ncig yam. Ib tug neeg, ib pawg neeg, thiab cov neeg ntawm ntau haiv neeg keeb kwm yuav muaj xim txawv txawv thiab khoob, vim li ntawd kev xav xim yog kev ua lej. Hom txhais, qhov txawv qhov txawv li cas.
Cov duab tsis ntim duab thiab kev ntes cov cuab yeej kom paub tseeb yog siv cov duab sib thooj sib txawv rau cov qauv ntawm cov khoom. Kev tsim kho ib qho kev qhia tam sim no qhia tau hais tias kev simulation ntawm cov yeeb yam zoo li ntawm ob qho khoom ntawm cov ntaub ntawv (textiles thiab pob zeb) nyob rau hauv kev soj ntsuam sib txawv. Cov ntsiab lus tseem ceeb tau teev muaj hauv qab no.
Ua ntej, ob txoj kev xav txog kev faib tawm
Cov ntaub ntawv tsis muaj ntawv (piv txwv, textile samples thiab zeb samples) Tom qab lub teeb ci teeb pom kev zoo los ntawm ntau cov ces kaum, qhov kev cuam tshuam qhov sib txawv ntawm qhov sib txawv. Lub koob yees duab CCD lub koob yees duab tau siv los txais qhov saum npoo thiab qhov tawg ntawm qhov khoom, thiab qhov sib npaug ntawm qhov khoom yog ntsuas. Hauv cov qauv pob zeb, nws tau muab faib ua peb qho qauv uas txawv txawv. Cov ntawv ntsuam xyuas tau muab los ntsuam xyuas kom tau tus bidirectional reflection tis ntawm nto, uas nruab nrab yog qhov sib txawv ntawm cov khoom ci. Cov lus qhia ntawm ob sab sib npaug ntawm cov zauv (bounectional tis dua) yog siv rau ob qhov sib txawv ntawm qhov kev ntsuas kwv yees (Phong thiab Torrance-Sparrow) los kwv yees lub gloss ntawm daim iav thiab matte zeb kuaj.
Thib ob, ntau lub duab tha duab
Lub Gonio-Image Capture System workflow pib los ntawm kev ntes cov duab ntawm qhov khoom, txhais cov duab ntawm qhov khoom nyob rau hauv ntau lub teeb nraub qaum, thiab mam li recombining cov duab pixels hauv tib chromaticity dav hlau, thiab thaum kawg ntsuas cov ntsiab lus ntawm lub. Ntshuam raws li kev siv rau kev ntxhib los ua duab zoo.
Thib peb, qhov qauv tshwm sim simulate zaub software
Lub koob yees duab captures cov xim xim piav qhia rau qhov tseeb conversion ntawm cov koob yees duab digital RGB xim thiab qhov chaw gami CIE XYZ. Txoj kev txiav txim siab polynomial regression ntawm cov koob yees duab digital RGB yog siv los tsim ib qho kev hloov dua tshiab ntawm txoj cai ntawm tus ntiv tes xoo. Lub simulation simulation zaub software simulates cov teeb meem kev pom ntawm lub ci thiab kev ntxhib los mos ntawm tus qauv nyob rau hauv ntau lub teeb los ntawm cov neeg mob thiab muab piv nrog kev ntsuam xyuas pom. Cov ntawv qhia txog kev simulation ntawm cov simulation software tau muab faib ua 1. Pib kev pib. 2. Xim. 3. Kev ntxhib los mos. 4. Qhov kaj. 5. Cov kev tshwm sim muaj tshwm sim.
Qhov no qhia tau tias tus software ua ib qho kev sim siab ntawm psychophysical nrog xya cais kev ntsuas kom ntsuam xyuas qhov sib txawv ntawm cov cim duab thiab cov koob yees duab siv duab. Cov txiaj ntsig kev soj ntsuam tau ua tiav rau ob qho ntsiab lus:
1. Kev ua tiav ntawm Torrance-Sparrow Model nrog ntau cov ces kaum ntawm qhov xwm txheej yog zoo dua li ntawm Tus Qauv Hauv Xov Tooj. Thaum lub kaum sab xis ntawm qhov tshwm sim ntawm lub teeb tuaj, qhov kev ua tiav ntawm ob hom qauv zuj zus tuaj.
2. Kev sib piv ntawm cov ntaub ntawv sib txawv. Nyob rau hauv ntau cov ntaub ntawv, lub Torrance-Sparrow Model tseem outperforms PhoneModel. Cov ntaub ntawv textile ntawm cov qauv no muaj kev ua tau zoo dua pob zeb.
Qhov kev sib koom tes no yog siv R & D zog ntawm University of Leeds thiab Cov Ntawv Tshawb Nrhiav Kev Tshawb Fawb los muab ib txoj kev zoo rau ntau qhov duab cov duab xim, thiab muab cov ntsiab lus ntawm kev tshawb fawb txog psychophysical los txheeb xyuas cov xim txawv, xav kom yog thiab qhov pom zoo yog tau theej. Nyob rau hauv lub neej yav tom ntej, Lub Chaw Tawm Xovxwm tseem yuav koom tes nrog University of Leeds los tsim cov qauv kev hloov kho analog rau duab los yog cov ntaub ntawv pom. Thov siv cov kev ua lag luam hauv kev lag luam hauv kev lag luam luam, nws yuav pab kho kom zoo dua qub thiab nthuav cov duab kos duab thiab luam ntawv thiab luam ntawv.