Petroglyph H5, Khatm Al Melaha, Kalba, Sharjah

Natural Version, Petroglyph H5, Khatm Al Melaha, Kalba, Sharjah. Line and dots. 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「自然版本、岩画H5（Petroglyph H5）」，哈特姆·阿尔·梅拉哈（Khatm Al Melaha）遗址，沙迦卡尔巴。纹饰以线条与圆点为主，年代大概率属于新石器时代或更早。[引自Fossati 2019年《来自过去的讯息：哈杰尔山脉（阿曼）岩画》] 哈特姆·阿尔·梅拉哈是阿拉伯联合酋长国沙迦卡尔巴附近阿曼海沿岸的一处考古遗址，也是阿联酋境内规模最大的岩画遗址之一。 本次共记录了175余块带有岩画（petroglyph）的岩石，识别出近400处纹饰图案。每一处带有刻绘的岩石均被赋予唯一编号与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±1cm的GPS测点。 本次通过MeshLab中的辐射缩放（Radiance Scaling）工具、Substance Painter的材质光照设置，以及Sketchfab的场景条件调整功能识别岩画。部分刻纹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。 「实景采集」 数据源：Objaverse 1.0 / Sketchfab