In recent years, three-dimensional technology is capable to simplify the reassembly process of the fractured objects. The reassembly process of stone tools can be easily done by the refitted flake matching process. The refitted flake matching process is required for highly accurate segmented flakes. This work aims to extract highly accurate flake surfaces and to match the extracted flake surfaces. In addition, this paper studies the evaluation of the matching accuracy of the extracted flakes and comparison to other methods. This paper also presents an algorithm of flake surface recognition based on feature lines of stone tools. The implementation of this work can recognize flake surfaces according to the scale drawing of the stone tool with high accuracy.
This paper proposes a flake surface segmentation method using ridge lines extracted from point clouds. First, ridge lines are extracted from a point set of a stone tool. Next, neighboring points of a ridge line are extracted by calculating the Euclidean distance from the ridge line. An area surrounded by the neighboring points of the ridge line is selected. Then, the area is expanded from the selected region to the ridge line to segment a flake surface.
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