Petroglyph G14, Khatm Al Melaha, Kalba, Sharjah

Natural Version, 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 Source: Objaverse 1.0 / Sketchfab自然标本：岩画G14，卡特姆·阿尔·梅拉哈遗址，卡尔巴，沙迦。题材为阿拉伯大羚羊（Arabian Oryx），年代推测为新石器时代或更早。[引用来源：Fossati 2019年《来自过去的讯息：哈杰尔山脉（阿曼）岩画》] 卡特姆·阿尔·梅拉哈遗址坐落于阿联酋沙迦卡尔巴附近的阿曼海沿岸，是阿联酋境内规模最大的岩画遗址之一。 该遗址已记录带岩画石块175余块，识别岩画图案近400组。每块带有刻痕的岩石均被赋予唯一标识编号与GPS坐标。单日累计完成地面实拍照片25455张、无人机航拍照片5244张、无人机航拍视频44段，以及精度达±1厘米的GPS测点182个。 岩画识别借助MeshLab中的辐射度缩放（Radiance Scaling）工具、Substance Painter中的材质光照调节功能，以及Sketchfab中的场景参数调整功能实现。部分刻痕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，方进行绘图记录。 Reality Capture（实景建模工具） 数据来源：Objaverse 1.0 / Sketchfab