Journal: Journal of Imaging

Article Title: Guidelines for Accurate Multi-Temporal Model Registration of 3D Scanned Objects

doi: 10.3390/jimaging9020043

Figure Lengend Snippet: The 3D optical scanner. The projector emits a light pattern upon a rotated object of interest (tibia), while two cameras record the distortion of the projected light. The scanning software then converts these data into surface coordinates to create a 3D model.

Article Snippet: Landi et al. used a portable 3D laser scanner (FreeScan UE7; Geomagic Control X; maximum FOV = 2652 cm 2 ) to analyze the deformation of machine guards before and after ballistic penetration, where 3D models were registered using intrinsic features consisting of the undeformed edges of the guards, with registration errors of approximately 300 μm [ ].

Techniques: Software

Journal: Journal of Imaging

Article Title: Guidelines for Accurate Multi-Temporal Model Registration of 3D Scanned Objects

doi: 10.3390/jimaging9020043

Figure Lengend Snippet: Flowchart of the post-processing methodology to measure surface variation. Three-dimensional models of target and reference objects were registered, and the linear surface variation was recorded as the mean deviation between the registered objects. Registration of the whole object (tibia) used the transformation matrix computed between the manually extracted registration blocks of the target and reference 3D models.

Article Snippet: Landi et al. used a portable 3D laser scanner (FreeScan UE7; Geomagic Control X; maximum FOV = 2652 cm 2 ) to analyze the deformation of machine guards before and after ballistic penetration, where 3D models were registered using intrinsic features consisting of the undeformed edges of the guards, with registration errors of approximately 300 μm [ ].

Techniques: Transformation Assay

Journal: Journal of Imaging

Article Title: Guidelines for Accurate Multi-Temporal Model Registration of 3D Scanned Objects

doi: 10.3390/jimaging9020043

Figure Lengend Snippet: Linear surface variation after registering two identical objects (tibia) that were acquired using a 3D optical scanner. In this figure, 3D objects were registered using four planes of the registration block. The posterior region of the tibial plateau surface could not be accurately registered when using smaller registration blocks.

Article Snippet: Landi et al. used a portable 3D laser scanner (FreeScan UE7; Geomagic Control X; maximum FOV = 2652 cm 2 ) to analyze the deformation of machine guards before and after ballistic penetration, where 3D models were registered using intrinsic features consisting of the undeformed edges of the guards, with registration errors of approximately 300 μm [ ].

Techniques: Blocking Assay

Journal: Journal of Imaging

Article Title: Guidelines for Accurate Multi-Temporal Model Registration of 3D Scanned Objects

doi: 10.3390/jimaging9020043

Figure Lengend Snippet: Registration error relative to the cross-sectional area of two selected features (planar surfaces) in terms of % field of view (% FOV). The small error when selecting block features accounting for 4% FOV is similar to the average error when using the entire 3D model (tibia + block; 96% FOV) to optimize the transformation.

Article Snippet: Landi et al. used a portable 3D laser scanner (FreeScan UE7; Geomagic Control X; maximum FOV = 2652 cm 2 ) to analyze the deformation of machine guards before and after ballistic penetration, where 3D models were registered using intrinsic features consisting of the undeformed edges of the guards, with registration errors of approximately 300 μm [ ].

Techniques: Blocking Assay, Transformation Assay