GRAPHICAL-DATA-PROCESSING RESEARCH STUDY AND EXPERIMENTAL INVESTIGATION.
Abstract
The report describes work in progress in each of the stages of the analysis of graphical data (specifically, the recognition of hand-printed FORTRAN test). These stages are: data preparation; input of data to the analysis system; preprocessing; classification; and contextual analysis. A preprocessing and classification method adapted from Jon K. Clemens of MIT was programmed and tested on characters from the data base. The best results were obtained for alphabetic characters only: 58% correct, 23% errors, and 19% rejects. The beginnings of work, directed at improving the recognition rate through the use of contextual relations among individually classified characters, are described. A small study showing that the recognition rate by humans of characters without context is on the order of 99%, and that the quantization performed during input to the system reduces this rate only slightly. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1966
- Accession Number
- AD0641647
Entities
People
- J. H. Munson
- R. O. Duda
Organizations
- SRI International