Keris Geometry Accuracy Using 3D Scanning Technique

Keris or kris is a traditional Indonesian stabbing weapon with distinctive and unique geometries which differentiate it from other weapons. Due to the different varieties of keris manufactured in various regions, it is necessary to develop a method of measuring the geometry of the keris, to assist in its identification process as well as to preserve its original shape. This research presents a method of creating a model representative of the keris using 3D scanning technique. The scanning method was illustrated for the measurement of three geometrically simple to complex keris, namely Lurus luk 1, Naga Kikik luk 3, and Sugguh Tamu luk 7. Consequently, geometric accuracy was measured by comparing the results of manual measurements to the coordinates of the 3D model, and results have shown a relatively small error in the range of 0.47% to 3.92 %. The results are significant as it shows that the 3D scanning method may be used to assist in the identification of the different varieties of keris.