A Multiple Classifier Approach for the Recognition of Screen-Rendered Text

Wachenfeld Steffen, Fleischer Stefan, Jiang Xiaoyi


Abstract
The lower the resolution of a given text is, the more difficult it becomes to segment and to recognize it. The resolution of screen-rendered text can be very low. With a typical x-height of 4 to 7 pixels it is much lower as in other low resolution OCR situations. Modern OCR approaches for such very low resolution text use a classification-based segmentation where the underlying classifier plays an important role. This paper presents a multiple classifier system for the classification of single characters. This system is used as a subsystem for the classification-based segmentation within a system to read screen-rendered text. The paper shows that the presented multiple classifier system outperforms the best former single classifier system on single characters by far and it shows the impact of using the multiple classifier system on the word reading performance.

Keywords
Recognition; Screen-Rendered Text; Multiple Classifier; OCR



Publication type
Research article in proceedings (conference)

Peer reviewed
Yes

Publication status
Published

Year
2007

Conference
12th International Conference on Computer Analysis of Images and Patterns (CAIP 2007)

Venue
Vienna, Austria

Start page
921

End page
928

Language
English