Publication
Embedding Meta-Information in Handwriting --- Reed-Solomon for Reliable Error Correction
Marcus Liwicki; Seiichi Uchida; Masakazu Iwamura; Shinichiro Omachi; Koichi Kise
In: Proceedings of the 12th International Conference on Frontiers in Handwriting Recognition. International Conference on Frontiers in Handwriting Recognition (ICFHR-10), November 16-18, Kolkata, India, Pages 51-56, 2010.
Abstract
In this paper a more compact and more reliable
coding scheme for the data-embedding pen is pro-
posed. The data-embedding pen produces an addi-
tional ink-dot sequence along a handwritten pattern
during writing. The ink-dot sequence represents, for
example, meta-information (such as the writer’s name
and the date of writing) and thus drastically increases
the value of the handwriting on a physical paper. There
is no need to get access to any memory on the pen to
recover the information, which is especially useful in
multi-writer or multi-pen scenarios. In this paper we
focus on the compactness of the encoded information.
The aim of this paper is to encode as much information
as possible in short stroke sequences. In our experi-
ments we show that we can embed more information
in shorter strokes than in previous work. In straight
lines as short as 5 cm, 32 bits can successfully be
embedded. Furthermore, the new encoding scheme also
works reliably on more complex patterns.