Petroglyph G14, Khatm Al Melaha, Kalba, Sharjah

Natural Version with Paint, Petroglyph G14, Khatm Al Melaha, Kalba, Sharjah. Arabian Oryx. likely Neolithic or earlier. [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彩绘自然版 岩画（petroglyph）G14，哈特姆·阿尔·梅拉哈（Khatm Al Melaha），卡尔巴，沙迦。标本为阿拉伯大羚羊（Arabian Oryx），年代推测为新石器时代或更早。[Fossati 2019 《来自往昔的讯息：阿曼哈杰尔山脉岩画》] 哈特姆·阿尔·梅拉哈（Khatm Al Melaha）是阿联酋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块带有岩画的石块，识别出近400个纹饰。每一块带有刻画纹饰的岩石均被分配了唯一编号与GPS坐标。本次数据采集单日共完成25455张地面摄影照片、5244张无人机航拍照片、44段无人机航拍视频，以及182个精度为±1厘米的GPS点位。 研究团队通过MeshLab中的辐射缩放（Radiance Scaling）功能、Substance Painter的材质光照调节，以及Sketchfab的场景条件调整来识别岩画。部分刻画纹饰在常规视角下完全不可见，仅当通过上述某一技术可识别出刻画线条时，才会进行绘图记录。 Reality Capture 与 Substance Painter 数据来源：Objaverse 1.0 / Sketchfab