Intra/Inter-Writer Variation on Each Part in Handwriting and Significant Parts for Writer Identification

Abstract

In writer identification with application in such as handwriting analysis, grasp of intra/inter-variation (variability and individuality) is the most important problem. This paper proposes a simple measurement method of intra/inter-writer variation on each part in handwriting, and clearly presents intra/inter-writer variation along strokes in kanji 6 characters, hiragana 5 characters, katakana 5 characters, and numeric 10 characters. Furthermore, this paper proposes extraction methods of significant parts in handwriting for writer identification, and demonstrate experimental results about those 26 characters.