For nominal model reconstruction, a Prominent Cross-Section algorithm embedded with curvature constraint is proposed to automatically identify the boundary of the part's damaged area and thereby eliminate the defective point clouds from the reconstruction process.
The proposed approach integrates 3D surface data collection, nominal model reconstruction, fine registration, extraction of additive/subtractive repair, tool path generation and actual machining process, seeking to improve the reliability and efficiency of manual repair process.
The nominal detector maximizes the reconstruction rate, the passive estimator maximizes the robustness, and the cascade (hybrid) design achieves a suitable compromise between them.
In the EM work, a nominal ∼30 Å resolution reconstruction is generated by negative-stain single-particle electron microscopy, using the random conical tilt method to achieve a suitable distribution of viewing angles.
To reduce the rejection rate and save the production cost, a measurement-based approach for geometric reconstruction of final nominal shape using free-form deformation (FFD) is presented in this paper.
By computationally sorting out different conformational states and reconstructing the structures from well-defined populations, the resulting 3D structures are considerably more intricate and provide new information for the Mediator structural organization, although the nominal resolution of the 3D reconstructions was not higher (Supplementary information, Figure S2) than that in previous studies.
For the purpose of this analysis, hip radiography consisting of an AP radiograph (the tomosynthesis scout image) and a cross-table lateral radiograph were compared to a tomosynthesis scan consisting of AP reconstructions of 2 mm nominal thickness without overlap, a setting recommended by the vendor.
To increase the number of orientations for 3D reconstruction, we recorded additional micrographs at 30° nominal stage tilt.
The preliminary post-flight trajectory reconstruction results described in this paper agree closely with the nominal trajectory.
With the computing power available in 2012 the maximum reconstruction time at HLT was about 200 ms per event, at the nominal L1T rate of 100 kHz.
