FIGURE 3. Images of specimens used for production of 3D digital models. From upper left clockwise: trilobite (Phacops latifrons), Chirotherium trackway, fossil tree (Stigmaria ficoides) root system, mounted Asian elephant skeleton (Elephas maximus).
FIGURE 5. 3D digital model of Chirotherium trackway. 5.1 – Dense point cloud containing 2,171,040 points. 5.2 – 3D polygon mesh. 5.3 – Close up of area highlighted in 5.1 showing small vertebrate tracks and detail of rock surface. 5.4 – 3D polygon mesh coloured according to vertex angle (orientation of individual faces) to highlight topography.
FIGURE 7. Comparison of dense point clouds produced using 44 (left) and 207 photographs (right). With additional photographs taken focusing on complex areas such as the jaw, the result is a considerably higher resolution point cloud.
FIGURE 10. Comparison between photograph of specimen (left), 0.3 mm resolution laser scan (middle), and photogrammetric model (right). Visible area of laser scan consists of 96,832 vertices, and visible area of photogrammetric model contains 1,390,894 vertices. Scale bars equals 10 mm.