Results 1 to 10 of about 166,338,206 (307)
Line-of-Sight MIMO in Point-to-Point Millimeter Wave Links via Scattering From Rough Surfaces
IEEE Access, 2023 We analyze a point-to-point MIMO communication system over a deterministic channel with two paths: line-of-sight (LoS) and a scattered path over a rough surface.
Carlos A. Viteri-Mera +2 more
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Sensors, 2018 In this paper, a novel 3D gaze estimation method for a wearable gaze tracking device is proposed. This method is based on the pupillary accommodation reflex of human vision. Firstly, a 3D gaze measurement model is built.
Zijing Wan +4 more
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Framework for 3D Point Cloud Modelling Aimed at Road Sight Distance Estimations [PDF]
Remote Sensing, 2019 Existing roads require periodic evaluation in order to ensure safe transportation. Estimations of the available sight distance (ASD) are fundamental to make sure motorists have sufficient visibility to perform basic driving tasks. Mobile LiDAR Systems (MLS) can provide these evaluations with accurate three-dimensional models of the road and ...
Keila González-Gómez +2 more
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Indoor view-based visibility analysis using UAV and TLS point clouds with Line-of-Sight correction
International Journal of Applied Earth Observations and GeoinformationVisibility analysis is a crucial geographic information processing method, used to assess the observable spatial range from a particular location under specific conditions.
Maolin Chen +3 more
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Cognitive factors that predict on-sight and red-point performance in sport climbing at youth level
Frontiers in Psychology, 2022 IntroductionThe ascent of a route can be defined as being climbed on-sight or red-point. Climbing performance is measured by the grade of the personal best route that the athlete has ever climbed.MethodologyThe study examined 17 youth climbers (10 male ...
Antonia Ioana Vasile +3 more
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Lattice Point Visibility on Generalized Lines of Sight [PDF]
The American Mathematical Monthly, 2018 For a fixed $b\in\mathbb{N}=\{1,2,3,\ldots\}$ we say that a point $(r,s)$ in the integer lattice $\mathbb{Z} \times \mathbb{Z}$ is $b$-visible from the origin if it lies on the graph of a power function $f(x)=ax^b$ with $a\in\mathbb{Q}$ and no other integer lattice point lies on this curve (i.e., line of sight) between $(0,0)$ and $(r,s)$.
Edray Goins +3 more
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Psychological factors that influence performance in youth advanced climbers
Social Sciences and Humanities Open, 2023 Introduction: Rock climbing performance in lead can be measured in two ways: on-sight and red-point. On-sight climbing demands greater physiological and psychological factors. There are five main recurring themes that keep climbers highly motivated: risk
Antonia Ioana Vasile +3 more
doaj +1 more source
Applied Sciences, 2023 Target localization has been a popular research topic in recent years since it is the basis of all kinds of location-based applications. For GNSS-denied urban or indoor environments, the localization method based on time-of-arrival (TOA) is one of the ...
Rui Luo +3 more
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An Analysis of Sight Distances Considering Both the Vertical and Horizontal Curves of a Tourist Bound Destination Highway in Camarines Sur: The Lagonoy-Presentacion Section [PDF]
Journal of Soft Computing in Civil Engineering, 2018 This analyzed sight distances contemplating both vertical and horizontal curves of a tourist bound destination highway in Camarines Sur, particularly the Lagonoy to Presentacion section. The Quantum Geographic Information System (QGIS) was used. The data
Raymundo Romero
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Improving the sampling strategy for point-to-point line-of-sight modelling in urban environments [PDF]
International Journal of Geographical Information Science, 2016 Visibility modelling calculates what an observer could theoretically see in the surrounding region based on a digital model of the landscape. In some cases it is not necessary, nor desirable, to compute the visibility of an entire region (i.e. a viewshed), but instead it is sufficient and more efficient to calculate the visibility from point-to-point ...
Bartie, Phil, Mackaness, William
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