Title :
Spatial sampling effects in optical character recognition
Author :
Lopresti, Daniel ; Zhou, Jiangying ; Nagy, George ; Sarkar, Prateek
Author_Institution :
Matsushita Inf. Technol. Lab., Princeton, NJ, USA
Abstract :
In this paper we examine the effects of random-phase spatial sampling on the optical character recognition process. We start by presenting a detailed analysis in the case of 1-dimensional patterns. Empirical data demonstrate that our model is accurate. We then give experimental results for more complex, 2-dimensional patterns (i.e. printed, scanned characters). Spatial sampling seems to account for a significant amount of the variability seen in practice
Keywords :
document image processing; image scanners; optical character recognition; statistical analysis; 2-dimensional patterns; optical character recognition; random-phase spatial sampling; spatial sampling; Character recognition; Distributed computing; Information technology; Laboratories; Noise generators; Optical character recognition software; Optical noise; Sampling methods; Signal to noise ratio; Systems engineering and theory;
Conference_Titel :
Document Analysis and Recognition, 1995., Proceedings of the Third International Conference on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-8186-7128-9
DOI :
10.1109/ICDAR.1995.599001
