The OCRopus OCR System
Progress and Status
September 2007
Thomas M. Breuel

Summary of Recent Progress
► Alpha Release Planned for October
► Simplification of C++ Interfaces
► Code Reorganization
► Incorporation of OpenFST Language Models
► Scripting Language
► Extensive Test Cases
► Integration of MLP Recognizer
► Debugging Visualization Interface
► Complete End-to-End Pipeline

Foundations
► based on segmentation-based speech recognition
● input image is segmented into candidate segments
● classifier estimates posterior probabilities
● segmentation lattice is integrated with language model