Petroglyph J11 Khatm Al Melaha, Kalba, Sharjah

Natural Version, Petroglyph J11 Khatm Al Melaha, Kalba, Sharjah. Anthropomorphic figure. 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（Petroglyph）J11 哈塔姆·阿尔·梅拉哈（Khatm Al Melaha），卡尔巴，沙迦。该遗存为拟人形象，年代推测为新石器时代或更早。[Fossati 2019 《来自往昔的讯息：阿曼哈贾尔山脉岩画艺术》] 哈塔姆·阿尔·梅拉哈（Khatm Al Melaha）是阿联酋沙迦省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余块带有岩画的石块，识别出近400处图像母题。每一块带有刻纹的岩石均被赋予唯一标识编号与GPS坐标。单日累计采集地面拍摄照片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±1cm的GPS测点182个。 本次通过MeshLab中的辐射缩放（Radiance Scaling）、Substance Painter的材质光照模拟，以及Sketchfab的场景条件调整等技术手段识别岩画。部分刻纹在常规观测视角下完全不可见，仅当通过上述任一技术可明确识别出轮廓线条时，才会进行绘图标注。 实景建模（Reality Capture） 数据来源：Objaverse 1.0 / Sketchfab