论文标题
验证摄影测量方法的客观研究古代弓箭仪器
Validation of a photogrammetric approach for the objective study of ancient bowed instruments
论文作者
论文摘要
在历史上，一些早期的小提琴已经减少了，以适合强加的形态学标准，而最近的小提琴是直接建立在这些标准下的。我们提出了一种客观的摄影测量方法来区分还原和未还原的仪器，从而通过检查2D切片对三维网格进行几何研究。我们的贡献是双重的。首先，我们通过与医学成像获得的参考图像进行比较来验证摄影测量网格的质量，并得出结论，可以实现次毫米的精度。然后，我们展示了如何自动从经过验证的摄影筛网中自动提取小提琴上下表面之间的定量和定性特征，例如轮廓线，最小值通道以及小提琴上和下表面之间的不对称度度量，从而成功地突出了工具之间的差异。
Some early violins have been reduced during their history to fit imposed morphological standards, while more recent ones have been built directly to these standards. We propose an objective photogrammetric approach to differentiate between a reduced and an unreduced instrument, whereby a three-dimensional mesh is studied geometrically by examining 2D slices. Our contribution is twofold. First, we validate the quality of the photogrammetric mesh through a comparison with reference images obtained by medical imaging, and conclude that a sub-millimetre accuracy is achieved. Then, we show how quantitative and qualitative features such as contour lines, channel of minima and a measure of asymmetry between the upper and lower surfaces of a violin can be automatically extracted from the validated photogrammetric meshes, allowing to successfully highlight differences between instruments.
