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Coursework for ISSALE - 2014 Project Demonstration

Coursework for ISSALE - 2014 Project Demonstration. SINHALA LANGUAGE OCR. Kasun Perera Chamila Liyanage Tharaka Viswakula Laksri Wijerathna. Sinhala Script consists of:. 18 vowels. 40 consonants. Sinhala Script. 18 modifiers other symbols (rakaranshaya, yansaya) Font: Abhaya

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Coursework for ISSALE - 2014 Project Demonstration

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  1. Coursework for ISSALE - 2014 Project Demonstration SINHALA LANGUAGE OCR • Kasun Perera • Chamila Liyanage • Tharaka Viswakula • Laksri Wijerathna

  2. Sinhala Script consists of: 18 vowels 40 consonants

  3. Sinhala Script 18 modifiers other symbols (rakaranshaya, yansaya) Font: Abhaya Font Size :12

  4. Selected characters

  5. Document Image Image document has 16 different character types and 11 samples of each character type.

  6. Line and Main Bodysegmentation • All lines were segmented correctly • No of Lines in input Image -9 • Program Outputs 9 line segments • 100% accuracy • All Main bodies were segmented correctly(No diacritics) • 100% accuracy

  7. Decision Tree Recognition results • Creation of Training(35) and Test data(15) • Decision Tree created using Weka - using Training data • Tested accuracy using Test data Overall accuracy: 70 % Bad recognition Chars 702- නි / 708- ල් / 711- සි / 712- ත්

  8. Tesseract Recognition results Overall accuracy: 93.181%

  9. Complete OCR- DT Method Overall accuracy - 28%

  10. Complete OCR - Tesseract Overall accuracy - 92.8%

  11. Tesseract Output File

  12. Conclusion Test dataset (15) • Tesseract Accuracy- 93% • DT Accuracy- 70% Document Image • Tesseract Accuracy- 92.8% • DT Accuracy- 28%

  13. ස්තුතියි...! (Thank you...!)

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