Petroglyph H3 Khatm Al Melaha, Kalba, Sharjah

DStretch Version, Petroglyph H3 Khatm Al Melaha, Kalba, Sharjah. Anthropomorphic. Impossible to discern. We have little confidence in this drawing. [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，岩刻H3 哈特姆·阿尔·梅拉哈（Khatm Al Melaha），卡尔巴，沙迦。该岩刻为拟人形图案，但难以辨识，我们对该绘图的可信度较低。[引自Fossati 2019年《来自过去的讯息：阿曼哈杰尔山脉的岩刻艺术》] 哈特姆·阿尔·梅拉哈（Khatm Al Melaha）是阿联酋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刻遗址之一。 该遗址已记录超过175块带有岩刻的石块，识别出近400个岩刻母题。每一块带有岩刻的岩石均被赋予唯一编号与GPS坐标。单日共采集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±1厘米的GPS测点。 岩刻的识别借助了MeshLab中的辐射缩放（Radiance Scaling）功能、Substance Painter中的材质光照调整，以及Sketchfab中的场景条件修改工具。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识别出刻线时，才会进行绘图记录。 数据处理采用了Reality Capture与DStretch 数据来源：Objaverse 1.0 / Sketchfab