Petroglyph H7, Khatm Al Melaha, Kalba, Sharjah

DStretch Version, Petroglyph H7, Khatm Al Melaha, Kalba, Sharjah. One snake. 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 / SketchfabDStretch版本，岩画H7，Khatm Al Melaha遗址，卡尔巴，沙迦。单幅蛇形刻画，年代推测为新石器时代或更早。[引自Fossati 2019年《来自往昔的讯息：哈杰尔山脉（阿曼）岩画》] Khatm Al Melaha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。 本次研究共记录175余块带有岩画的石块，识别出近400个岩画母题。每块带有刻画痕迹的岩石均被赋予唯一ID编号与GPS坐标。单日累计采集25455张地面拍摄照片、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。 岩画的识别借助Meshlab中的辐射度缩放（Radiance Scaling）、Substance Painter的材质光照模拟，以及Sketchfab的场景条件调整功能完成。部分岩刻画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，才会进行绘图标注。 实景建模（Reality Capture） 数据集来源：Objaverse 1.0 / Sketchfab