Abstract Rock-art recording has been significantly improved in recent years by new technologies. Nonetheless, accurate documentation of certain engravings is a challenge for these cutting-edge technologies, especially the extremely thin incised lines used in many Palaeolithic engraved motifs. In this paper, we propose a new methodology for recording these engravings with the objective of producing results comparable to the information available for Palaeolithic portable art. We are currently testing a multi-scale modelling methodology for these engravings. The objective is to produce affordable ultra-high resolution 3D models. Our methodology is completely built around close-range photogrammetry techniques, capturing scenes in increasingly higher resolutions and with different light settings. These entities are referenced to a local coordinate system allowing the overlapping of the different captures. Finally, the detailed tracings achieved from the independent higher resolution 3D models can be accurately gathered in an overall 3D model of lower resolution without geometric distortions.

中文翻译：

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在3D捕捉的极限上：一种新的方法来进行摄影测量法记录Atxurra Cave（西班牙北部）中的旧石器时代的薄刻雕刻品

摘要近年来，通过新技术大大提高了摇滚录音的水平。但是，对于某些先进的雕刻技术而言，准确记录某些雕刻是一个挑战，尤其是在许多旧石器时代的雕刻图案中使用的极细的切割线。在本文中，我们提出了一种记录这些雕刻的新方法，目的是产生与可用于旧石器时代便携式艺术的信息相媲美的结果。我们目前正在测试这些雕刻品的多尺度建模方法。目的是生产负担得起的超高分辨率3D模型。我们的方法完全基于近距离摄影测量技术，可以以越来越高的分辨率和不同的灯光设置捕获场景。这些实体以允许不同捕获物重叠的局部坐标系为参考。最后，从独立的高分辨率3D模型获得的详细跟踪可以准确地收集到较低分辨率的整体3D模型中，而不会造成几何失真。