An Earthenware Reconstruction System Considering Color Pattern and Shape Similarities

Syogo Yasuhara¹, Shohei Kato¹*, Satoshi Kato² and Hidenori Itoh¹

¹Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
²Toyota Communication Systems Co., Ltd., Higashi-ku, Nagoya 461-0005, Japan
*shohey@ics.nitech.ac.jp

(Received May 18, 2004; Accepted March 20, 2005)

Keywords: Earthenware Reconstruction, Pattern Analysis, Computer Graphics, Graphical Visualization

Abstract. This paper proposes an earthenware reconstruction system considering surface color and pattern of potsherds, in addition to contour shape. In general, most of potsherds have complex, irregular, and weathering contours because of rain, wind and so on. Reconstruction of earthenware, therefore, is attended with much difficulties. In our previous work, a system considering surface patterns has been developed, but there is some problems, for the surface patterns are just analyzed in grayscale in the system. In this paper, we discuss a color similarity approach, and then, we propose a joint detection method based on the approach. We have implemented the method into our earthenware reconstruction system, and we also report good performance results for some weathered potsherds.