Petroglyph G18, Khatm Al Melaha, Kalba, Sharjah

DStretch Version, Petroglyph G18, Khatm Al Melaha, Kalba, Sharjah. Perhaps a 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 and DStretch Source: Objaverse 1.0 / SketchfabDStretch版本，岩画（Petroglyph）G18，哈特姆·阿尔·梅拉哈（Khatm Al Melaha），卡尔巴，沙迦。疑似蛇形纹样，年代大概率为新石器时代或更早。[引自Fossati 2019年《来自过去的讯息：哈杰尔山脉（阿曼）的岩画》] 哈特姆·阿尔·梅拉哈（Khatm Al Melaha）是位于阿拉伯联合酋长国（UAE）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。 本次研究共记录175余处带有岩画的石块，识别出近400个纹样单元。每一处带有岩刻的岩石均被赋予唯一标识编号与GPS坐标。单日累计采集了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±1cm的GPS测点。 研究人员通过Meshlab中的亮度缩放（Radiance Scaling）、Substance Painter的材质光照模拟，以及Sketchfab的场景条件调整来识别岩画。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辨识出刻线时，才会进行绘图记录。 Reality Capture与DStretch 数据来源：Objaverse 1.0 / Sketchfab