ed so that, in session 2, the degradation of the test stimulus does not prolong the comparison operation. This conclusion follows from the virtual equality of the slopes of the two reaction-time functions in that session. The marked effect of degradation on reaction time is due, in both sessions, primarily to a change in some part of the process other than the comparison operation. It is plausi...

Spelling correction techniques can be used to improve the recognition accuracy of text recognition systems. In this paper a new spelling-error model is proposed that is especially suited to the correction of recognition errors occurring during the recognition of printed documents. An implementation of this model is described that exploits typographical constraints derived from character shapes....

A classifier for predicting the character accuracy achieved by any Optical Character Recognition (OCR) system on a given page is presented. This classifier is based on measuring the amount of white speckle, the amount of character fragments, and overall size information in the page. No output from the OCR system is used. The given page is classified as either “good” quality (i.e., high OCR accu...

This paper proposes a method for Urdu language text. Character recognition is obtained by OCR. This paper represents the effectiveness of characters with SVM Classifier using Hierarchical approach. SVM is a useful technique for data classification. The objective of SVM is to generate a model which predicts the target value. The work is done on Sindhi Character Set. The experiment shows that cha...