Results 11 to 20 of about 19,106 (250)

Injury Epidemiology of 626 Athletes in Surfing, Wind Surfing and Kite Surfing

open access: yesOpen Access Journal of Sports Medicine, 2021
Introduction/Background: Surfing, wind surfing and kite surfing enjoy a growing popularity with a large number of athletes worldwide. The aim of this study was to identify and compare the injury profiles and compare the injury profiles of these three extreme water sports.
Szymski, Dominik   +9 more
openaire   +7 more sources

Surf Tourism in Uncertain Times: Resident Perspectives on the Sustainability Implications of COVID-19

open access: yesSocieties, 2021
Surf tourism is the principal development driver in many coastal communities around the world. Surf tourism development brings economic opportunities to residents in coastal destinations, but has also been criticized for associations with gentrification,
Leon John Mach
doaj   +1 more source

Privacy Preserving Fingerprint Authentication at the Cloud Server for eHealth Services [PDF]

open access: yesEAI Endorsed Transactions on Pervasive Health and Technology, 2019
BACKGROUND: Restricting entry and access to highly sensitive systems like e-Health services is vital to protect the privacy and confidentiality of customers. User authentication is implemented predominantly done using Bio-metric schemes.
S Rajarajan   +3 more
doaj   +1 more source

A Vision-Based Odometer for Localization of Omnidirectional Indoor Robots

open access: yesSensors, 2020
In this paper we tackle the problem of indoor robot localization by using a vision-based approach. Specifically, we propose a visual odometer able to give back the relative pose of an omnidirectional automatic guided vehicle (AGV) that moves inside an ...
Cosimo Patruno   +5 more
doaj   +1 more source

Identification of Rupiah Paper Currency Denomination using SURF and FLANN Methods at Rotation Variation

open access: yesJurnal Teknologi dan Sistem Komputer, 2019
In December 2016, Bank Indonesia (BI) officially launched the 2016 Year Emission Rupiah. With the development of technology, the process of buying and selling are not only possible between humans and humans, but humans with a machine.
Adri Priadana, Aris Wahyu Murdiyanto
doaj   +1 more source

SuRF [PDF]

open access: yesProceedings of the 2018 International Conference on Management of Data, 2018
We present the Succinct Range Filter (SuRF), a fast and compact data structure for approximate membership tests. Unlike traditional Bloom filters, SuRF supports both single-key lookups and common range queries: open-range queries, closed-range queries, and range counts.
Huanchen Zhang   +6 more
openaire   +3 more sources

Il senso del mare. Fenomenologia del surf sulla Gold Coast australiana

open access: yesAntropologia, 2021
A partire da una concezione delle “culture sportive” come prodotti storici e culturali e a loro volta come ambiti di produzione di cultura, analizzo da un punto di vista etnografico come la pratica del surf sulla Gold Coast australiana veicoli non solo ...
Dario Nardini
doaj   +1 more source

Image processing for feature detection and extraction [PDF]

open access: yesINCAS Bulletin
The present paper aims to conduct an experiment that compares different methods of detecting objects in images. Programs were developed to evaluate the efficiency of SURF, BRISK, MSER, and ORB object detection methods.
Nicolae APOSTOLESCU   +1 more
doaj   +1 more source

Image Segmentation and Feature Extraction Using Sift-Sad Algorithm for Disparity Map Generation

open access: yesCommunications, 2013
In this paper, a stereo matching algorithm based on image segments and disparity measurement using stereo images is presented. We propose the hybrid segmentation algorithm that is based on a combination of the Belief Propagation and Mean Shift algorithms
Patrik Kamencay   +5 more
doaj   +1 more source

A Precise Indoor Visual Positioning Approach Using a Built Image Feature Database and Single User Image from Smartphone Cameras

open access: yesRemote Sensing, 2020
Indoor visual positioning is a key technology in a variety of indoor location services and applications. The particular spatial structures and environments of indoor spaces is a challenging scene for visual positioning.
Ming Li   +5 more
doaj   +1 more source

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