Results 11 to 20 of about 18,482 (246)

Photometric stereo for strong specular highlights

open access: yesComputational Visual Media, 2018
Photometric stereo is a fundamental technique in computer vision known to produce 3D shape with high accuracy. It uses several input images of a static scene taken from one and the same camera position but under varying illumination. The vast majority of
Maryam Khanian   +2 more
doaj   +3 more sources

Automated Mobile System for Accurate Outdoor Tree Crop Enumeration Using an Uncalibrated Camera [PDF]

open access: yesSensors, 2015
This paper demonstrates an automated computer vision system for outdoor tree crop enumeration in a seedling nursery. The complete system incorporates both hardware components (including an embedded microcontroller, an odometry encoder, and an ...
Thuy Tuong Nguyen   +6 more
doaj   +4 more sources

Orthographic Projection and the Elaboration of the Imaginary [PDF]

open access: gold, 2012
With the development of digital technologies, orthographic projection has been slowly removed from the process of architectural design. Instead, orthographic projection drawings are increasingly utilised purely post-design in the form of technical ...
Duncan Geoffrey Anderson
openalex   +3 more sources

Meta‐Virtuality: Strategies of Disembeddedness in Virtual Interiorities

open access: yesJournal of Interior Design, EarlyView., 2022
ABSTRACT To reclaim their seat in the rapidly growing market of virtual space, designers of the built environment can benefit from reevaluating theories that see the virtual as a mere extension/reflection of the physical. By claiming ontological autonomy from external worlds, the virtual is liberated from the hegemonic control of the physical.
Vahid Vahdat
wiley   +1 more source

Visualising higher-dimensional space-time and space-scale objects as projections to ℝ3 [PDF]

open access: yesPeerJ Computer Science, 2017
Objects of more than three dimensions can be used to model geographic phenomena that occur in space, time and scale. For instance, a single 4D object can be used to represent the changes in a 3D object’s shape across time or all its optimal ...
Ken Arroyo Ohori   +2 more
doaj   +2 more sources

3D Reconstruction of Non-Lambertian Surfaces by Perspective Shape-From-Shading With Fast Viscosity Solution

open access: yesFrontiers in Physics, 2022
Shape-from-shading (SFS) is an important method to reconstruct three-dimensional (3D) shape of a surface in photometry and computer vision. Lambertian surface reflectance and orthographic camera projection are two fundamental assumptions which generally ...
Guohui Wang, Hao Zheng
doaj   +1 more source

Creating Realistic 3D Graphics with Excel at High School - Vector Algebra in Practice

open access: yesInformatics in Education, 2015
The article presents the results of an experiment in which Excel applications that depict rotatable and sizable orthographic projection of simple 3D figures with face overlapping were developed with thirty gymnasium (high school) students of age 17-19 as
Jan BENACKA
doaj   +1 more source

Point Cloud Scene Completion of Obstructed Building Facades with Generative Adversarial Inpainting

open access: yesSensors, 2020
Collecting 3D point cloud data of buildings is important for many applications such as urban mapping, renovation, preservation, and energy simulation.
Jingdao Chen   +4 more
doaj   +1 more source

A new protocol for texture mapping process and 2d representation of rupestrian architecture [PDF]

open access: yes, 2018
The development of the survey techniques for architecture and archaeology requires a general review in the methods used for the representation of numerical data.
Angelini, Andrea   +2 more
core   +2 more sources

One-shot 3d surface reconstruction from instantaneous frequencies: solutions to ambiguity problems [PDF]

open access: yes, 2009
Phase-measuring profilometry is a well known technique for 3D surface reconstruction based on a sinusoidal pattern that is projected on a scene. If the surface is partly occluded by, for instance, other objects, then the depth shows abrupt transitions at
Heijden, F. van der   +2 more
core   +2 more sources

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