Chii chinonzi OCR tekinoroji?
Optical Character Recognition (Chirungu: Optical Character Recognition, OCR) inoreva maitiro ekuongorora nekuona mafaera emifananidzo ezvinyorwa kuti uwane ruzivo rwemavara uye marongero.
Zvakafanana nekuzivikanwa kwemifananidzo uye tekinoroji yekuona muchina, iyo nzira yekugadzirisa yeOCR tekinoroji yakakamurwa kuita yekuisa, pre-processing, yepakati-temu kugadzirisa, post-processing uye yekubuda maitiro.
kupinda
Kune akasiyana mafomati emifananidzo, kune akasiyana mafomati ekuchengetedza uye akasiyana compression nzira.Parizvino, kune OpenCV, CxImage, nezvimwe.
Pre-processing - binarization
Mazhinji emifananidzo yakatorwa nemakamera edhijitari nhasi mifananidzo yemavara, ine huwandu hukuru hweruzivo uye haina kukodzera tekinoroji yeOCR.
Kune zviri mumufananidzo, isu tinogona kungozvipatsanura kuva kumberi uye kumashure.Kuti tiite kuti komputa ikurumidze uye iite zvirinani masvomhu ane hukama neOCR, isu tinofanirwa kutanga tagadzirisa mufananidzo weruvara, kuitira kuti chete ruzivo rwepamberi uye ruzivo rwemashure zvirambe zviri pamufananidzo.Binarization inogona zvakare kunzwisiswa se "dema uye chena".
mufananidzo kuderedza ruzha
Pamifananidzo yakasiyana-siyana, tsanangudzo yeruzha inogona kunge yakasiyana, uye maitiro ekuita denoising maererano nemaitiro eruzha anonzi kuderedza ruzha.
tilt kugadzirisa
Nekuti vashandisi vakajairwa, kana vachitora mafoto ezvinyorwa, zvakaoma kupfura zvizere zvinoenderana neyakachinjika uye yakatwasuka kurongeka, saka mapikicha anotorwa anozove akatsveyama, izvo zvinoda mufananidzo wekugadzirisa software kugadzirisa.
Mid-term processing - kuongororwa kwemaitiro
Nzira yekupatsanura mifananidzo yemagwaro kuita ndima nemapazi inonzi ongororo yehurongwa.Nekuda kwekusiyana uye kuoma kwemagwaro chaiwo, danho iri richiri kuda kuvandudzwa.
kucheka hunhu
Nekuda kwekugumira kwekutora mifananidzo nekunyora mamiriro, mavara anowanzo kunamatira uye zvinyoreso zvinoputswa.Nekunanga kushandisa mifananidzo yakadai yeOCR ongororo inodzikamisa zvakanyanya OCR kuita.Naizvozvo, kupatsanurwa kwehunhu kunodiwa, ndiko kuti, kuparadzanisa mavara akasiyana.
Kuzivikanwa kwehunhu
Mukutanga nhanho, template yekufananidza yainyanya kushandiswa, uye mune yakazotevera nhanho, kudhirowa kwechimiro kwainyanya kushandiswa.Nekuda kwesimba rezvinhu zvakaita sekutamiswa kwemavara, kukora kwestroke, peni yakatyoka, adhesion, kutenderera, nezvimwe, kuoma kwekubvisa chimiro kunokanganisa zvakanyanya.
Kudzoreredza kwegadziriro
Vanhu vanotarisira kuti zvinyorwa zvinozivikanwa zvichiri kurongeka semufananidzo wegwaro rekutanga, uye ndima, zvinzvimbo, uye kurongeka zvinoburitswa kumagwaro eIzwi, magwaro ePDF, nezvimwewo, uye maitiro aya anonzi kudzoreredza marongero.
post processing
Zvinoenderana nehukama hwechirevo chemutauro chaiwo, mubairo wekucherechedzwa unogadziriswa.
output
Bvisa mavara anozivikanwa semavara mune imwe fomati.
Ndeapi mashandisirwo emateshi anobatwa nemaoko akavakirwa paOCR tekinoroji?
Kuburikidza neiyo handheld terminal PDA yakarongedzerwa neOCR character recognition software, akawanda maficha ekushandisa anogona kuitika, akadai se: rezinesi rezinesi remota, kuzivikanwa kwenhamba yemudziyo, nyama yemombe inotengeswa kunze kwenyika uye mutton huremu rezita rezita, pasipoti-inoverengeka nzvimbo yekuzivikanwa, yemagetsi mita yekuverenga kuverenga. , simbi coil Kuzivikanwa kwemavara akapfapfaidzwa.
Nguva yekutumira: Nov-16-2022