Optical Character Recognition (OCR) yog hais txog software uas tsim muaj digital version ntawm daim ntawv luam tawm, ntaus ntawv, los yog sau ntawm tes uas cov computers tau nyeem tsis tas yuav tsum tau ua los yog sau cov ntawv. OCR feem ntau yog siv los ntawm cov ntaub ntawv scanned hauv PDF hom ntawv, tab sis tuaj yeem tsim tau ib lub computer nyeem tshwm ntawm cov ntaub ntawv hauv cov duab.
OCR yog dab tsi?
OCR, tseem hu ua text recognition, yog software technology uas hloov cov cim xws li cov lej, cov tsiaj ntawv, thiab cov cim sau ntawv (tseem hu ua glyphs) los ntawm cov ntawv luam los yog sau ntawv mus rau hauv daim ntawv hluav taws xob yooj yim dua thiab nyeem tau los ntawm cov computers thiab lwm cov software programs. Qee qhov OCR cov kev pab cuam no ua daim ntawv luam los yog yees duab nrog lub koob yees duab digital thiab lwm tus tuaj yeem siv qhov txheej txheem no rau cov ntaub ntawv uas tau raug luam tawm los yog yees duab tsis muaj OCR. OCR tso cai rau cov neeg siv tshawb hauv PDF cov ntaub ntawv, kho kom raug cov ntawv nyeem, thiab rov kho cov ntaub ntawv.
OCR Siv Rau Dab Tsi?
Rau kev ceev, txhua hnub scanning xav tau, OCR yuav tsis yog ib qho loj deal. Yog hais tias koj ua tus loj npaum li cas luam, nrhiav tau hauv PDFs thiaj li nrhiav tau pes tsawg tus koj xav tau txuag heev me ntsis sij hawm thiab ua OCR kev ua haujlwm nyob rau hauv koj qhov kev pab cuam scanner tseem ceeb. Nov yog qee qhov lwm yam OCR pab nrog:
- Cov ntaub ntawv sau cia thiab cov ntaub ntawv nkag teb chaws (Piv txwv: Cov neeg ua haujlwm thov kev khiav haujlwm nrhiav kev rov qab)
- Ua luam tawm cov ntawv tshawb fawb
- Hloov cov kev nyeem ntawm tes kom nyeem tau cov ntawv nyeem hauv computer
- Ua cov ntaub ntawv ntau dua los ntawm cov kev nyeem ntawv uas pab cov neeg tsis pom kev zoo
- Saib xyuas cov ntaub ntawv keeb kwm thiab cov ntawv xov xwm, thaum tseem ua rau lawv tshawb tau
- Cov ntaub ntawv muab rho tawm thiab hloov mus rau cov kev pabcuam nyiaj txiag (Piv txwv: Ntawv pov thawj thiab cov ntawv sau)
- Indexing cov ntaub ntawv rau kev siv los ntawm kev tshawb fawb xyaw
- Kev lees paub ntawm cov tsav tsheb licence los ntawm lub koob yees duab ceev thiab lub koob yees duab liab red-light software
- Hais lus synthesizers rau cov neeg uas tsis txawj hais lus - theoretical physicist, Stephen Hawking, yog saib tsam tus neeg paub zoo tshaj plaws ntawm kev hais lus synthesizer program
Vim li cas thiaj siv OCR?
Vim li cas ho tsis cia li muab ib daim duab, puas yog? Vim tias koj tsis tuaj yeem hloov kho txhua yam los sis tshawb cov ntawv nyeem vim tias nws tsuas yog duab xwb. Kev xa cov ntaub ntawv thiab khiav OCR software tuaj yeem hloov cov ntaub ntawv no rau hauv ib yam uas koj tuaj yeem kho tau thiab muaj peev xwm tshawb tau.
Keeb kwm ntawm OCR
Thaum lub sijhawm siv cov ntaub ntawv tshaj tawm rau xyoo 1914, kev nthuav dav dav thiab kev siv OCR muaj feem xyuam nrog pib ua haujlwm rau xyoo 1950, uas yog tsim cov qauv yooj yim heev uas tau yooj yim los hloov cov ntawv nyeem digitally-readable. Thawj zaug ntawm cov qauv no tau tsim los ntawm David Shepard thiab feem ntau hu ua OCR-7B. OCR-7B tseem siv niaj hnub no hauv kev lag luam nyiaj txiag rau tus qauv siv los ntawm credit card thiab debit cards. Hauv lub sijhawm xyoo 1960, cov kev pabcuam hauv ntau lub tebchaws pib siv OCR cov cuab yeej siv los txhawm rau xa cov kev faib tawm, xws li Tebchaws Meskas, Aas Kiv, Canada, thiab lub tebchaws United States. OCR tseem yog cov cuab yeej technology siv los xa cov ntawv xa cov kev pab cuam nyob thoob qab ntuj. Hauv 2000, kev paub txog cov kev txwv thiab kev siv cuab yeej ntawm OCR cov cuab yeej raug siv los tsim cov CAPTCHA cov kev pab cuam uas siv los nres cov khoom siv thiab cov chaw sib txuam.
Tau ntau xyoo dhau los, OCR tau loj hlob zoo dua thiab muaj ntau dua vim muaj kev sib tw nrog cov kev siv technology xws li khoom siv dag zog , kev kawm tshuab , thiab kev pom siv computer. Niaj hnub no, OCR software siv kev paub txog kev sib txawv, kev nrhiav kom paub, thiab cov ntawv nyeem tsuas yog hloov cov ntaub ntawv kom sai thiab ntau dua li yav tas los.