Petroglyph V12 Khatm Al Melaha, Kalba, Sharjah

DStretch Version, Petroglyph V12 Khatm Al Melaha, Kalba, Sharjah. One Syrian Wild Ass and one Nubian Ibex. 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 DStretch Source: Objaverse 1.0 / SketchfabDStretch版本，岩画（petroglyph）V12 哈特姆·阿勒·梅拉哈（Khatm Al Melaha），卡尔巴，沙迦。该遗址包含一头叙利亚野驴（Syrian Wild Ass）与一头努比亚羱羊（Nubian Ibex）的刻画形象，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·阿勒·梅拉哈（Khatm Al Melaha）为阿联酋沙迦卡尔巴附近阿曼海沿岸的考古遗址，亦是阿联酋境内规模最大的岩画遗址之一。 本次共建档记录175余块带有岩画的石块，识别出近400个岩画纹样。每一块带有刻画纹样的岩石均被分配唯一标识编号与GPS坐标。单日累计完成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±1cm的GPS测点采集工作。 岩画识别借助了MeshLab的辐射度缩放（Radiance Scaling）工具、Substance Painter的材质光照功能，以及Sketchfab的环境条件调节功能完成。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明确识别刻画线条时，方才开展纹样描绘工作。 实景建模（Reality Capture）与DStretch 数据集来源：Objaverse 1.0 / Sketchfab