Results 11 to 20 of about 31,184 (264)

Efficient and accurate projector calibration method based on phase-shifting method with sinusoidal structured light

open access: yesHeliyon, 2023
Objective: Projector calibration is one of the most basic and important steps in structured light three-dimensional measurement. However, such as complicated calibration process and low accuracy are still the inevitable problems in the calibration ...
Wenguo Li   +3 more
doaj   +1 more source

Projector Compensation Framework Using Differentiable Rendering

open access: yesIEEE Access, 2022
Projection mapping is a widely adopted technique in various applications. A typically projector-camera system consists of a projector and camera pair where a projector emits an application-specific input image onto a surface, and the camera captures the ...
Jino Park, Donghyuk Jung, Bochang Moon
doaj   +1 more source

A Novel Low-Cost Adaptive Scanner Concept for Mobile Robots

open access: yesIngeniería e Investigación, 2014
A fundamental problem in mobile robot applications is the need for accurate knowledge of the position of a vehicle for localizing itself and for avoiding obstacles in its path.
Ivo Stančić, Josip Music, Mojmil Cecic
doaj   +1 more source

Touch Sensing for a Projected Screen Using Slope Disparity Gating

open access: yesIEEE Access, 2021
This paper introduces a novel touch sensing system for a projected screen with a single camera. To achieve touch sensing with camera image, there are two challenges to overcome.
Mayuka Tsuji   +4 more
doaj   +1 more source

Simple Color Calibration Method by Projection onto Retroreflective Materials

open access: yesJournal of Imaging, 2022
Retroreflective materials have the property of directional reflection, reflecting light strongly in the direction of the light source, and have been used for road traffic signs.
Yusuke Nakamura, Takahiko Horiuchi
doaj   +1 more source

Evaluation of Human Behaviour Detection and Interaction with Information Projection for Drone-Based Night-Time Security

open access: yesDrones, 2023
Night security is known for its long hours and heavy tasks. In Japan, a labor shortage of security guards has become an issue in recent years. To solve these problems, an increasing number of robotic security methods are being used.
Ryosuke Kakiuchi   +2 more
doaj   +1 more source

Calibration of a Catadioptric System and 3D Reconstruction Based on Surface Structured Light

open access: yesSensors, 2022
In response to the problem of the small field of vision in 3D reconstruction, a 3D reconstruction system based on a catadioptric camera and projector was built by introducing a traditional camera to calibrate the catadioptric camera and projector system.
Zhenghai Lu   +5 more
doaj   +1 more source

On Some Estimate for the Norm of an Interpolation Projector

open access: yesМоделирование и анализ информационных систем, 2022
Let $Q_n=[0,1]^n$ be the unit cube in ${\mathbb R}^n$ and let $C(Q_n)$ be a space of continuous functions $f:Q_n\to{\mathbb R}$ with the norm $\|f\|_{C(Q_n)}:=\max_{x\in Q_n}|f(x)|.$ By $\Pi_1\left({\mathbb R}^n\right)$ denote a set of polynomials in $n$
Mikhail V. Nevskii
doaj   +1 more source

Estimating Visibility of Annotations for View Management in Spatial Augmented Reality Based on Machine-Learning Techniques

open access: yesSensors, 2019
Augmented Reality (AR) is a class of “mediated reality” that artificially modifies the human perception by superimposing virtual objects on the real world, which is expected to supplement reality.
Keita Ichihashi, Kaori Fujinami
doaj   +1 more source

The role of visualization in learning a foreign language

open access: yesВестник Самарского государственного технического университета. Серия: Психолого-педагогические науки, 2019
In the article, the necessity to introduce visual aids to improve the effectiveness of the learning process is actualized. It is noted that the correct use of visualization is a means of gaining knowledge and makes it easier to remember the material.
Elena V. Revina
doaj   +1 more source

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