We present an approach for 3D reconstruction of objects from a single panoramic image. Obviously, constraints on the 3D structure are needed to perform this task. Our approach is based on user-provided coplanarity, perpendicularity and parallelism constraints. The method is described in detail for the case of a parabolic mirror-based omnidirectional sensor and results are provided.

If 3D applications become large, hierarchical networks of geometric objects lead to messy specifications. Furthermore, if timeand event-dependencies are merged with the geometric modeling, the global layout of animation and interaction can hardly be achieved. We present an objectoriented architecture for interactive, animated 3D widgets which reduces the complexity of building 3D applications. ...

fused deposition modeling (fdm) is a filament based rapid prototyping system provides us to manufacture real parts with multiple production-grade materials, such as abs-m30, pc, ppsf and pc-abs blend. fused deposition modeling technology, essentially perform using layer manufacturing process. more complex 3d physical models can be efficiently fabricated without geometric limitation by this tech...

based on the fact the manipulation of fine nanoclusters calls for more precise modeling, the aim of this paper is to conduct an atomistic investigation for interaction analysis of particle-substrate system for pushing and positioning purposes. in the present research, 2d molecular dynamics simulations have been used to investigate such behaviors. performing the planar simulations can provide a ...

In this study, a laser line auto-scanning system was designed to perform underwater close-range 3D reconstructions with high accuracy and resolution. The system changes the laser plane direction with a galvanometer to perform automatic scanning and obtain continuous laser strips for underwater 3D reconstruction. The system parameters were calibrated with the homography constraints between the t...

3D stacking of dies is an enabler for further miniaturization and increase of functionality. Individual dies are thinned down aggressively – down to approximately 20 um – and glued on top of each other. With such 3D ICs, the same power dissipation will lead to higher temperatures in a stacked-die package compared to a single-die package. Hence, there is a need to perform detailed thermal analys...

Recent progress in digital subtraction angiography (DSA) devices makes it possible to perform rotational angiography with high resolution and high sensitivity. We tried intravenous (IV) 3D DSA in patients who had undergone MR angiography (MRA) suggestive of unruptured intracranial aneurysms. IV 3D DSA can be used as an alternative method for imaging unruptured intracranial aneurysms suggested o...

This paper is a report on the 3D Shape Retrieval Constest 2010 (SHREC’10) track on large scale retrieval. This benchmark allows evaluating how wel retrieval algorithms scale up to large collections of 3D models. The task was to perform 40 queries in a dataset of 10000 shapes. We describe the methods used and discuss the results and signifiance analysis.

An overview of the current status of the development of our navigation system for resection of liver tumours is given. The system is based on intraoperative 3D ultrasound volumes for image-guided navigation of surgical instruments. It is also possible to perform a virtual 3D planning of the tumour resection and to non-rigidly register these preoperative models to the intraoperative ultrasound v...

Several attacks against physical pin-tumbler locks require access to one or more key blanks to perform. These attacks include bumping, impressioning, rightsamplification, and teleduplication. To mitigate these attacks, many lock systems rely on restricted keyways and use blanks that are not sold to the general public, making it harder for attackers to obtain them. Often the key blank designs th...