Lucent Technologies Inc.

Hao Chen

Richard William Sproat

Jianying Hu

A technique analyzing loosely constrained text blocks, such as e-mail signature blocks by performing a two-dimensional geometrical analysis and a one-dimensional language analysis in order to classify sub-blocks at the loosely constrained text block into particular functional classes. The present technique may also be utilized to identify a personal name from a user name in a loosely constrained text block, such as an e-mail signature block.

E-mail signature block analysis

A technique for segmenting a loosely constrained text block, such as an e-mail signature block into sub-blocks by performing line segment extraction and connected component analysis on the foreground characters and background characters and recursively repeating connected component analysis on both the foreground and background characters and line segment extraction on the background characters until a text output includes no mixed reading blocks. A technique for correcting over segmentation errors in a line of text from a loosely constrained text block which has undergone geometrical analysis.

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Dorval, Canada

Hao Chen