Results 21 to 30 of about 6,312 (167)

Markerless Endoscopic Registration and Referencing [PDF]

open access: yes, 2006
Accurate patient registration and referencing is a key element in navigated surgery. Unfortunately all existing methods are either invasive or very time consuming. We propose a fully non-invasive optical approach using a tracked monocular endoscope to reconstruct the surgical scene in 3D using photogrammetric methods.
Christian, Wengert   +4 more
openaire   +2 more sources

Markerless human motion transfer [PDF]

open access: yesACM SIGGRAPH 2004 Sketches on - SIGGRAPH '04, 2004
In this paper we develop a computer vision-based system to transfer human motion from one subject to another. Our system uses a network of eight calibrated and synchronized cameras. We first build detailed kinematic models of the subjects based on our algorithms for extracting shape from silhouette across time [A 3D reconstruction algorithm combining ...
G.K.M. Cheung   +3 more
openaire   +1 more source

Penerapan Teknologi Augmented Reality Sebagai Media Promosi Sepatu

open access: yesDigital Zone: Jurnal Teknologi Informasi dan Komunikasi, 2023
Keberadaan toko online sebagai platform penjualan dianggap sangat penting dalam meningkatkan profit, terutama dengan perkembangan teknologi augmented reality (AR) yang dapat memperkaya proses promosi. Tujuan dari penelitian ini adalah untuk mengembangkan
Muhammad Khoirul Anam   +1 more
doaj   +1 more source

Markerless vs. Marker-Based Gait Analysis: A Proof of Concept Study

open access: yesSensors, 2022
The analysis of human gait is an important tool in medicine and rehabilitation to evaluate the effects and the progression of neurological diseases resulting in neuromotor disorders.
Matteo Moro   +4 more
doaj   +1 more source

Markerless Genome Editing in Competent Streptococci [PDF]

open access: yes, 2016
Selective markers employed in classical mutagenesis methods using natural genetic transformation can affect gene expression, risk phenotypic effects, and accumulate as unwanted genes during successive mutagenesis cycles. In this chapter, we present a protocol for markerless genome editing in Streptococcus mutans and Streptococcus pneumoniae achieved ...
Junges, Roger   +5 more
openaire   +5 more sources

Markerless Gene Deletion System for Sphingomonads [PDF]

open access: yesApplied and Environmental Microbiology, 2012
ABSTRACT Here, we suggest that natural streptomycin resistance of many sphingomonads resides within rpsL . We constructed a dominant, streptomycin-sensitive rpsL allele and demonstrated its use as a counterselection marker in several sphingomonads.
Kaczmarczyk A   +2 more
openaire   +2 more sources

Autonomous Aerial Refueling Ground Test Demonstration—A Sensor-in-the-Loop, Non-Tracking Method

open access: yesSensors, 2015
An essential capability for an unmanned aerial vehicle (UAV) to extend its airborne duration without increasing the size of the aircraft is called the autonomous aerial refueling (AAR).
Chao-I Chen   +5 more
doaj   +1 more source

AR Enabled IoT for a Smart and Interactive Environment: A Survey and Future Directions

open access: yesSensors, 2019
Accompanying the advent of wireless networking and the Internet of Things (IoT), traditional augmented reality (AR) systems to visualize virtual 3D models of the real world are evolving into smart and interactive AR related to the context of things for ...
Dongsik Jo, Gerard Jounghyun Kim
doaj   +1 more source

Monocular 3D Human Pose Markerless Systems for Gait Assessment

open access: yesBioengineering, 2023
Gait analysis plays an important role in the fields of healthcare and sports sciences. Conventional gait analysis relies on costly equipment such as optical motion capture cameras and wearable sensors, some of which require trained assessors for data ...
Xuqi Zhu   +6 more
doaj   +1 more source

Markerless 3D Face Tracking [PDF]

open access: yes, 2009
We present a novel algorithm for the markerless tracking of deforming surfaces such as faces. We acquire a sequence of 3D scans along with color images at 40Hz. The data is then represented by implicit surface and color functions, using a novel partition-of-unity type method of efficiently combining local regressors using nearest neighbor searches ...
Walder, C.   +4 more
openaire   +3 more sources

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