Results 151 to 160 of about 15,698 (301)
Dynamic Hand Gesture Recognition of Arabic Sign Language using Hand Motion Trajectory Features
, 2013 In this paper we propose a system for dynamic hand gesture recognition of Arabic Sign Language The proposed system takes the dynamic gesture video stream as input extracts hand area and computes hand motion features then uses these features to ...
Mohamed sameer Mohamed Abdalla +1 more
core
Mid-Air Hand Rehabilitation Evaluation and Virtual Training System [PDF]
RadioengineeringThis paper presents the design of a mid-air hand rehabilitation evaluation and virtual training system based on Leap Motion and gesture recognition algorithms.
R. Zhou, P. Lai, L. Chen, Z. Hu, L. Qian
doaj
Advanced Engineering Materials, EarlyView.Molecular dynamics is used to investigate structure refinement during severe plastic deformation. The results show similitude with experimental data. Molecular dynamics simulations of severe plastic deformation of monocrystalline and polycrystalline samples by multiaxial compression of aluminum are carried out.
Roberto B. Figueiredo
wiley +1 more source
Advanced Engineering Materials, EarlyView.Grain boundary triple junctions are an essential ingredient of the microstructure of polycrystalline materials. In this study, a triple junction is observed using atomic‐resolution scanning transmission electron microscopy and characterized. Computer simulations reveal that the junction has a dislocation character that is determined by the joining ...
Tobias Brink +4 more
wiley +1 more source
Hand Gesture Discrimination with Passive Infrared Sensor Arrays
Gesture recognition is a natural way of non-verbal communication for humans. However it is technically challenging to capture the relatively undefined movement of body parts in free space and also extract the intended gestures. Many existing technologies
Wojtczuk, Piotr
core
Design and Analysis of Compression–Torsion Coupling Metamaterials Using the Golden Section Method
Advanced Engineering Materials, EarlyView.A novel compression–torsion metamaterial is engineered using inclined rods and symmetry breaking. To optimize its torsional performance, the golden section method is employed. The mechanical response of the metamaterial is validated through both numerical analysis and experimental validation.
Amirhossein Hassani, Sara Bagherifard
wiley +1 more source
Advanced Functional Materials, EarlyView.Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco +8 more
wiley +1 more source
Hand Gesture Recognition Using Adaboost with SIFT
, 2007 基於Viola-Jones 技術的現存手勢辨識方法，存在著二個基本的問題。在偵測器訓練過程中，訓練樣本中背景的干擾以及在偵測時物件在照片中平面旋轉對 於偵測結果的影響。像手是一種非固定形物體，訓練的樣本中難免的包含了許多其他的背景物件，如此條件下訓練的偵測器的效能便會降低。現存解決背景物件 影響的方法往往需要花費相當多的人力和計算時間。雖然Viola-Jones 技術下依舊可以使用多個各別不同角度的偵測器去去達到旋轉不變的特性 (rotation-invariance ...
王科植, Wang, Ko-Chih
core
Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
wiley +1 more source
Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions
Advanced Functional Materials, EarlyView.This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian +7 more
wiley +1 more source