A Systematic Mapping Study on OCR Techniques

This paper presents a systematic review on optical character recognition techniques. In this review paper we will present an overview of different technique used in OCR through systematic mapping. Which type of research is used for exploring OCR techniques (survey, case study, solution proposal etc.)? Publication channel for paper using different techniques for OCR. Most prominent technique used by the researcher. Number of relevant research paper in wellknown data sources. We tried to cover in this paper all the areas belonging to OCR, its usage and implementations. Our research found 56 categorized primary studies, we observe that mostly OCR tool designed using neural networks techniques, and most of the time researcher follow solution proposal and validation research type for carrying their research. Mostly academic environment is place where research about OCR is conducted. We believe that findings of this systematic mapping study will help the researcher to know about the different techniques used for OCR and research types (methods) used for exploring these techniques.