Toshiya Nakaguchi, Atsunori Sakama, Satoki Zenbutsu, Norimichi Tsumura, Yoichi Miyake
Chiba University
Journal of Imaging Science and Technology, pp.1-7, Vol.52, No.5, 2008.
Abstract
In this study we propose an endoscopic image enhancement technique named
dynamic band imaging (DBI) which temporally changes color conversion matrix.
DBI is based on the estimation of multi-spectral band images to enhance
the endoscopic color images in order to distinguish the slight color difference
of early-stage cancer more clearly. Since this method can be implemented
by only using software approach, it is easy to upgrade the devices whereas
narrow band technique requires hardware upgrading. From the results of
fundamental analysis by subjective evaluations, DBI represents the effectiveness
for image enhancement in comparison with the typical still image evaluation.
Besides we have developed a user interface to determine six parameters
of this method easily. By using this device, appropriate parameters for
practical endoscopic diagnosis have been obtained. DBI is found as the
new effective method to enhance color endoscopic images.
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