Fluctuations of character centroid intervals in laterally written Japanese sentences
Saiki T, Kitagawa Y, Hayashi A
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS,
COMMUNICATIONS AND COMPUTER SCIENCES, E82A(3):520-526 (MAR 1999)
Abstract
Fluctuation characteristics of character centroid intervals in
laterally written Japanese sentences are investigated by means of
their spatial frequency characteristics. Power spectra of character
centroid intervals in their longitudinal and transverse directions
are obtained for handwritten and word processor printed sample
sentences. It is shown that for fluctuation characteristics in the
longitudinal direction, power spectra are inversely proportional
to their spatial frequencies for handwritten sentences and
proportional to them for word processor printed sentences, and
there exists a remarkable difference between handwritten and
word processor printed sentences. It is also shown that for
fluctuation characteristics in the transverse direction, power
spectra are proportional to their spatial frequencies for both
handwritten and word processor printed sentences, and there is
no remarkable difference between handwritten and word
processor printed sentences.
