Combining Multiple Features for Text-Independent Writer Identification and Verification
Bulacu , Marius
Schomaker , Lambert
- Publisher: Suvisoft
ACM : I.: Computing Methodologies/I.5: PATTERN RECOGNITION | Writer identification and verification | directional | [ INFO.INFO-TT ] Computer Science [cs]/Document and Text Processing | [ INFO.INFO-CV ] Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV] | feature combination | ACM : I.: Computing Methodologies/I.7: DOCUMENT AND TEXT PROCESSING | grapheme | run-length probability distributions
http://www.suvisoft.com; In recent years, we proposed a number of new and very effective features for automatic writer identification and verification. They are probability distribution functions (PDFs) extracted from the handwriting images and characterize writer individuality independently of the textual content of the written samples. In this paper, we perform an extensive analysis of feature combinations. In our fusion scheme, the final unique distance between two handwritten samples is computed as the average of the distances due to the individual features participating in the combination. Obtained on a large dataset containing 900 writers, our results show that fusing multiple features (directional, grapheme, run-length PDFs) yields increased writer identification and verification performance.