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Khmer OCR

LONG SeangmengLecturer and researcher, GIC - ITC

seangmeng@itc.edu.kh17/02/2012

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Khmer OCR

• OCR System• Khmer OCR Project• State of the Art• Work Done• Current Work

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OCR System

OCR

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Khmer OCR Project

• 2011-2012• Team– 1 researcher– 1 intern student (5th year)

• Develop a Khmer OCR system– Font independent– Size independent

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State of the ArtAuthor Limitation Result

C. Chey, P. Kumhom and K. Chamnongthai

10 characters (បពជកភណឃសវទ)

92%

C. Chey, P. Kumhom and K. Chamnongthai

20 fonts 92.85% (size 22)91.66% (size 18)89.27% (size 12)

L. Ing and A. Muaz Limon R1 22 98.88%

V. Kruy Font and size independent 97%

Tesseract• Top 3 engines in 1995• Most accurate open source OCR engine

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Work Done

• Training Tesseract for Khmer font– Khmer OS font– 2210 character clusters

– 11 MB• Problems– Some characters not detected – Some characters misdetected

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Current Work

• Improve works done by Vanna Kruy– Improve performance– Create an easy-to-use GUI– Make it easy to add new fonts

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Thanks for your attention!

Questions???