Results 41 to 50 of about 7,539,459 (382)
Automatic Geometry Generation from Point Clouds for BIM
Remote Sensing, 2015 The need for better 3D documentation of the built environment has come to the fore in recent years, led primarily by city modelling at the large scale and Building Information Modelling (BIM) at the smaller scale.
Charles Thomson, Jan Boehm
doaj +1 more source
APSIPA Transactions on Signal and Information Processing, 2020 This article presents an overview of the recent standardization activities for point cloud compression (PCC). A point cloud is a 3D data representation used in diverse applications associated with immersive media including virtual/augmented reality ...
D. Graziosi +5 more
semanticscholar +1 more source
Point-Like Structure in Strings and Non-Commutative Geometry [PDF]
, 1996 Dynamics of a free point particle on a multi world-line is presented and shown to reduce to that of a bosonic string theory at the appropriate limit.
Ardalan, Farhad, Fatollahi, Amir H.
core +4 more sources
Improved Deep Point Cloud Geometry Compression [PDF]
IEEE International Workshop on Multimedia Signal Processing, 2020 Point clouds have been recognized as a crucial data structure for 3D content and are essential in a number of applications such as virtual and mixed reality, autonomous driving, cultural heritage, etc.
Maurice Quach, G. Valenzise, F. Dufaux
semanticscholar +1 more source
Assigning Quantum-Mechanical Initial Conditions to Cosmological Perturbations [PDF]
, 2003 Quantum-mechanical initial conditions for the fluctuations of the geometry can be assigned in excess of a given physical wavelength. The two-point functions of the scalar and tensor modes of the geometry will then inherit corrections depending on which ...
Giovannini, Massimo
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Points and topologies in rigid geometry
Mathematische Annalen, 1995 Let \(X\) be an affinoid space over a complete nonarchimedean field. The usual points of \(X\) are not sufficient to investigate sheaves on \(X\); for instance, there exist sheaves of \({\mathcal O}_{\mathcal X}\)-modules with all stalks equal to (0) and which are not (0).
Schneider, P., Put, M. van der
openaire +3 more sources
Emergent unitarity, all-loop cuts and integrations from the ABJM amplituhedron
Journal of High Energy Physics, 2023 We elaborate on aspects of a new positive geometry proposed recently, which was conjectured to be the four-point amplituhedron for ABJM theory. We study generalized unitarity cuts from the geometry, and in particular we prove that (1) the four-point ...
Song He +3 more
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Non-perturbative Gauge Groups and Local Mirror Symmetry [PDF]
, 2001 We analyze D-brane states and their central charges on the resolution of C^2/Z_n by using local mirror symmetry. There is a point in the moduli space where all n(n-1)/2 branches of the principal component of the discriminant locus coincide. We argue that
Skarke, H.
core +2 more sources
The influence of drill point geometry on tool life
Tehnički Glasnik, 2018 Drilling is a cutting process that uses a rotary cutting tool to cut a cylindrical hole in a solid material. During machining, drill bits are exposed to rapid wear at high temperature.
Zlatko Botak +3 more
doaj +1 more source
Polylidar3D-Fast Polygon Extraction from 3D Data
Sensors, 2020 Flat surfaces captured by 3D point clouds are often used for localization, mapping, and modeling. Dense point cloud processing has high computation and memory costs making low-dimensional representations of flat surfaces such as polygons desirable.
Jeremy Castagno, Ella Atkins
doaj +1 more source