Keyphrases
- scanned images
- hidden markov models
- optical character recognition
- document images
- post processing
- text recognition
- character recognition
- recognition errors
- error correction
- preprocessing
- scanned documents
- document image analysis
- variable duration
- page layout
- printed documents
- noise removal
- ocr systems
- document processing
- real time
- inverse halftoning
- speech recognition
- artificial neural networks
- postal address
- neural network