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Text-Image Restoration And Text Alignment For Multi-Engine Optical Character Recognition Systems, Nikolai Kozlovski
Text-Image Restoration And Text Alignment For Multi-Engine Optical Character Recognition Systems, Nikolai Kozlovski
Electronic Theses and Dissertations
Previous research showed that combining three different optical character recognition (OCR) engines (ExperVision® OCR, Scansoft OCR, and Abbyy® OCR) results using voting algorithms will get higher accuracy rate than each of the engines individually. While a voting algorithm has been realized, several aspects to automate and improve the accuracy rate needed further research. This thesis will focus on morphological image preprocessing and morphological text restoration that goes to OCR engines. This method is similar to the one used in restoration partial finger prints. Series of morphological dilating and eroding filters of various mask shapes and sizes were applied to text …