Petroglyph H25, Khatm Al Melaha, Kalba, Sharjah

Natural Version with Paint, Petroglyph H25, Khatm Al Melaha, Kalba, Sharjah. One Camel. likely Iron Age or later. [Fossati 2019 Messages from the Past: Rock Art of the Al-Hajar Mountains (Oman)]. Khatm Al Melaha is an archaeological site on the coast of the Oman Sea near Kalba in Sharjah, UAE. It is one of the largest rock art sites in the UAE. Over 175 stones with petroglyphs were documented and close to 400 motifs were identified. Every rock with a glyph was given an ID number and a GPS coordinate. In total 25455 terrestrial photographs, 5244 drone photographs, 44 drone videos, and 182 GPS points (+/- 1cm) were done in a single day. Petroglyphs were identified using Radiance Scaling in Meshlab, materials lighting in Substance Painter, and by changing conditions in Sketchfab. Some carvings were completely invisible when viewing. Drawings were done only when a line could be identified using one of these techniques. Reality Capture and Substance Painter Source: Objaverse 1.0 / Sketchfab彩绘自然复刻版，岩画编号H25，出自阿联酋沙迦卡尔巴的哈特姆·阿尔·梅拉哈（Khatm Al Melaha）遗址。主题为单峰骆驼，年代大概率为铁器时代或更晚。[引自Fossati 2019年《来自往昔的讯息：哈贾尔山脉岩画（阿曼）》] 哈特姆·阿尔·梅拉哈（Khatm Al Melaha）是阿联酋（UAE）沙迦市卡尔巴附近阿曼海沿岸的一处考古遗址，亦是阿联酋境内规模最大的岩画遗址之一。 该遗址已记录超过175块带有岩画的石材，识别出近400个岩画母题。每一块带有雕刻的岩石均被赋予唯一识别编号与GPS坐标。单日累计完成了25455张地面实拍照片、5244张无人机航拍照片、44段无人机航拍视频，以及182个精度达±1厘米的GPS测点。 本次岩画识别工作借助MeshLab中的Radiance Scaling（辐射缩放）功能、Substance Painter的材质光照模拟，以及Sketchfab的场景条件调整工具完成。部分岩刻在常规视角下完全不可见，仅当通过上述任一技术可识别出线条时，才会进行绘图记录。 所用工具包括Reality Capture（现实捕捉）与Substance Painter（物质画家） 数据集来源：Objaverse 1.0 / Sketchfab