Optical Character Recognition Techniques: A Review

Shubham Srivastava, Ajay Verma, Shekhar Sharma

202252 citationsDOI

Abstract

Optical Character recognition is an eminent topic of research in modern times. An exhaustive research is going on character recognition of different languages. These languages mainly include English and Devanagiri in India. A lot of research has been carried out already in the English language. Devanagiri consists of over 120 regional languages, which is a current topic of research nowadays. Character recognition is done on two types of documents typed and handwritten. In case of Indian and other languages OCR systems are not yet able to recognize the characters successfully with 100 percent reliability because of variation in scripts, quality, size, font, and style. Various algorithms are being developed now days for increasing the reliability of these characters for accurate recognition.

Topics & Concepts

Computer scienceOptical character recognitionCharacter (mathematics)Scripting languageNatural language processingVariation (astronomy)Character recognitionReliability (semiconductor)Artificial intelligenceFontIntelligent character recognitionQuality (philosophy)Intelligent word recognitionDocument processingSpeech recognitionProgramming languageImage (mathematics)GeometryPhysicsQuantum mechanicsAstrophysicsEpistemologyPhilosophyMathematicsPower (physics)Handwritten Text Recognition TechniquesVehicle License Plate RecognitionImage Retrieval and Classification Techniques