Results 1 to 10 of about 3,009,375 (271)

MeshGraphNet: An Effective 3D Polygon Mesh Recognition With Topology Reconstruction

open access: yesIEEE Access, 2020
Three-dimensional polygon mesh recognition has a significant impact on current computer graphics. However, its application to some real-life fields, such as unmanned driving and medical image processing, has been restricted due to the lack of inner ...
An Ping Song   +3 more
doaj   +2 more sources

A New Fully Projective O(Lg N) Line Convex Polygon Intersection Algorithm

open access: yesVisual Computer
Intersecting algorithms, especially line clipping in E2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength ...
Václav Skala
exaly   +2 more sources

MobileNeRF: Exploiting the Polygon Rasterization Pipeline for Efficient Neural Field Rendering on Mobile Architectures [PDF]

open access: yesComputer Vision and Pattern Recognition, 2022
Neural Radiance Fields (NeRFs) have demonstrated amazing ability to synthesize images of 3D scenes from novel views. However, they rely upon specialized volumetric rendering algorithms based on ray marching that are mismatched to the capabilities of ...
Zhiqin Chen   +3 more
semanticscholar   +1 more source

Fast shadow casting algorithm in analytical polygon-based computer-generated holography.

open access: yesOptics Express, 2023
Shadow casting is essential in computer graphics, which can significantly enhance the reality of rendered images. However, shadow casting is rarely studied in polygon-based computer-generated holography (CGH) because state-of-art triangle-based occlusion
Jiaqi Dong, Bo-Ru Yang, Zong Qin
semanticscholar   +1 more source

Line Clipping in 2D: Overview, Techniques and Algorithms

open access: yesJournal of Imaging, 2022
Clipping, as a fundamental process in computer graphics, displays only the part of a scene which is needed to be displayed and rejects all others. In two dimensions, the clipping process can be applied to a variety of geometric primitives such as points,
Dimitrios Matthes, Vasileios Drakopoulos
doaj   +1 more source

Acceleration of polygon-based computer-generated holograms using look-up tables and reduction of the table size via principal component analysis.

open access: yesOptics Express, 2021
In this study, we first analyze the fully analytical frequency spectrum solving method based on three-dimensional affine transform. Thus, we establish a new method for combining look-up tables (LUTs) with polygon holography.
Fan Wang   +4 more
semanticscholar   +1 more source

Robust line-convex polygon intersection computation in E² using projective space representation

open access: yesMachine Graphics & Vision, 2023
This paper describes modified robust algorithms for a line clipping by a convex polygon in E2 and a convex polyhedron in E3. The proposed algorithm is based on the Cyrus-Beck algorithm and uses homogeneous coordinates to increase the robustness of ...
Vaclav Skala
doaj   +1 more source

Recognition of tennis serve performed by a digital player: comparison among polygon, shadow, and stick-figure models. [PDF]

open access: yesPLoS ONE, 2012
The objective of this study was to assess the cognitive effect of human character models on the observer's ability to extract relevant information from computer graphics animation of tennis serve motions.
Hirofumi Ida   +2 more
doaj   +1 more source

A Lower Bound for Proportion of Visibility Polygon's Surface to Entire Polygon's Surface: Estimated by Art Gallery Problem and Proven that Cannot be Greatly Improved

open access: yesConference on Computer Science and Information Systems, 2023
Assuming a bounded polygon and a point inside the polygon or on its boundary, the visibility polygon, also called the visibility region, is a polygon reachable, i.e., visible by straight lines from the point without hitting the polygon's edges or ...
Lubomír Štěpánek   +3 more
semanticscholar   +1 more source

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