scholarly journals A Low-Cost Natural User Interaction Based on a Camera Hand-Gestures Recognizer

2011 ◽  
pp. 214-221 ◽  
Author(s):  
Mohamed-Ikbel Boulabiar ◽  
Thomas Burger ◽  
Franck Poirier ◽  
Gilles Coppin
Keyword(s):  
Low Cost ◽  
User Interaction ◽  
Hand Gestures

Development of a Low-Cost Augmented Reality Head-Mounted Display Prototype

2018 ◽  
pp. 1-28
Author(s):  
Thiago D'Angelo ◽  
Saul Emanuel Delabrida Silva ◽  
Ricardo A. R. Oliveira ◽  
Antonio A. F. Loureiro
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
User Experience ◽  
Low Cost ◽  
User Interaction ◽  
Daily Activities ◽  
Head Mounted Display ◽  
Time Performance ◽  
Work Tasks ◽  
Head Mounted Displays

Virtual Reality and Augmented Reality Head-Mounted Displays (HMDs) have been emerging in the last years. These technologies sound like the new hot topic for the next years. Head-Mounted Displays have been developed for many different purposes. Users have the opportunity to enjoy these technologies for entertainment, work tasks, and many other daily activities. Despite the recent release of many AR and VR HMDs, two major problems are hindering the AR HMDs from reaching the mainstream market: the extremely high costs and the user experience issues. In order to minimize these problems, we have developed an AR HMD prototype based on a smartphone and on other low-cost materials. The prototype is capable of running Eye Tracking algorithms, which can be used to improve user interaction and user experience. To assess our AR HMD prototype, we choose a state-of-the-art method for eye center location found in the literature and evaluate its real-time performance in different development boards.

Image transfer and computer-supported cooperative diagnosis

1997 ◽  
Vol 3 (2) ◽  
pp. 103-107 ◽  
Author(s):  
H Handels ◽  
E Rinast ◽  
Ch Busch ◽  
Ch Hahn ◽  
V Kuhn ◽  
...  
Keyword(s):  
Image Processing ◽  
User Interface ◽  
Graphical User Interface ◽  
Medical Image ◽  
Low Cost ◽  
User Interaction ◽  
Magnetic Resonance Images ◽  
Computer Supported Cooperative Work ◽  
Communication Tool ◽  
Image Transfer

The KAMEDIN system was designed as a low-cost communication tool as part of a computer-supported cooperative work project that included synchronized user interaction, telepointing and audioconferencing. During a five-month field trial, it was used for medical image transfer and cooperative diagnosis in 14 clinics and medical departments in Germany. During the field test, 297 teleconsultations were performed via ISDN and 875 MByte of data were transferred. An image compression ratio of 2-3 was obtained, so that the total quantity of data transferred corresponded to 14,000-21,000 magnetic resonance images or 3500-5250 computerized tomography images. Furthermore, 694 local sessions were conducted for the preparation of teleconsultations and the review of transferred images. Participants learned to handle the KAMEDIN system in a few hours. This was mainly owing to the design of the user-oriented graphical user interface and the restriction of the system to a set of essential image-processing functions.

scholarly journals Development of a gravimetric fuel measurement system for the evaluation of engine performance physical parameters

2021 ◽  
Vol 2073 (1) ◽  
pp. 012015
Author(s):  
G C Prada Botia ◽  
J P Rojas Suárez ◽  
M S Orjuela Abril
Keyword(s):  
Fuel Consumption ◽  
Measurement System ◽  
Test Bench ◽  
Experimental Testing ◽  
Low Cost ◽  
Engine Performance ◽  
User Interaction ◽  
Control Valve ◽  
Physical Parameters ◽  
Industrial Sectors

Abstract This paper presents the implementation and design features of a gravimetric-based fuel consumption system. The proposed system comprises a gravimetric balance with serial output, a fuel pump, and a control valve that are integrated into a complete engine test bench via Arduino UNO®. The study implements an instrumentation methodology to minimize measurement disturbance and error propagation, which represents a major concern in engine experimental testing. Moreover, an interactive virtual environment is developed to reinforce user interaction via LabView™. Results demonstrated that the proposed measurement system features robust and reliable operation while maintaining negligible disturbance and overall uncertainty ranging from 0.010-0.23 g/s. Additionally, it was evidenced that the measurement system allows the analysis of key parameters to evaluate engine performance. The study of the fuels blends shows that the ethanol content causes a 6.8% increase in brake specific fuel consumption and a 4% decrease in the brake thermal efficiency. Due to the low cost of the developed measurement system can be easily adapted to test bench laboratories to promote a better learning process and in industrial sectors for better energy management.

Real-Time Marketing as a New Marketing Approach in the Digital Age

2020 ◽  
pp. 208-222
Author(s):  
Selçuk Bazarcı
Keyword(s):  
Real Time ◽  
Digital Media ◽  
Brand Image ◽  
Low Cost ◽  
User Interaction ◽  
Digital Age ◽  
Communication Process ◽  
Brand Communication ◽  
High User ◽  
Emotional Appeals

Nowadays, in order for brands to respond to consumer expectations, digital media efforts need to be involved in the brand communication process. Brands have a unique way to remind their names in a consumer's mind with real-time marketing. In addition, real-time marketing offers a way to make it easier for marketers to reach their target audiences at a low cost when increasing the speed and functionality of information. In this chapter, real-time marketing posts that have high user interaction on Twitter are handled in the context of their process, content features, and message appeal. Examined were 185 tweets. According to the data obtained, brands are trying to create positive brand image for consumers. Besides, it has been determined that both informational and emotional appeals are used intensively in order to create brand awareness.

Facebook in the low-cost fashion sector: the case of Primark

2017 ◽  
Vol 21 (4) ◽  
pp. 512-522 ◽  
Author(s):  
Josep Lluis Del Olmo Arriaga ◽  
David Andreu Domingo ◽  
Vanesa Berlanga Silvente
Keyword(s):  
Social Network ◽  
Low Cost ◽  
Social Network Sites ◽  
User Interaction ◽  
User Interactions ◽  
Content Type ◽  
Fashion Brand ◽  
The Social ◽  
The Relationship

Purpose The purpose of this paper is to analyse the interaction between fashion brands and consumers on social network sites. More precisely, the goal is to assess the relationship that is established between the low-cost fashion company Primark and followers of the brand on the Facebook social network in Spain, and to evaluate the brand’s use of consumer passion through this social network. Design/methodology/approach The fieldwork for this research was conducted over September-October 2015, which coincided with the final stages in the sales and the start of the autumn-winter 2015 season. The methodology was based on a daily study of all Primark publications and user interactions with the brand on Facebook. Findings The results of this study show that there is some engagement between Facebook users and Primark. However, the company does not respond to this user interaction, thereby missing opportunities in the field of consumer passion. Originality/value Until now, research into the interaction of fashion brands with users of the social networks has focused mainly on the luxury sector. This study makes an important contribution to research into the interaction between a low-cost fashion brand and users of social network sites. Primark was chosen as the focus of this case study because the brand has become a model since it broke into the mature Spanish fashion market.

scholarly journals Inferring Static Hand Poses from a Low-Cost Non-Intrusive sEMG Sensor

Sensors ◽  
2019 ◽  
Vol 19 (2) ◽  
pp. 371 ◽  
Author(s):  
Nadia Nasri ◽  
Sergio Orts-Escolano ◽  
Francisco Gomez-Donoso ◽  
Miguel Cazorla
Keyword(s):  
Gesture Recognition ◽  
Surface Electromyography ◽  
Low Cost ◽  
Body Part ◽  
Hand Gestures ◽  
Use Of Technology ◽  
Myo Armband ◽  
Commercial Device ◽  
Gated Recurrent Unit ◽  
Unit Network

Every year, a significant number of people lose a body part in an accident, through sickness or in high-risk manual jobs. Several studies and research works have tried to reduce the constraints and risks in their lives through the use of technology. This work proposes a learning-based approach that performs gesture recognition using a surface electromyography-based device, the Myo Armband released by Thalmic Labs, which is a commercial device and has eight non-intrusive low-cost sensors. With 35 able-bodied subjects, and using the Myo Armband device, which is able to record data at about 200 MHz, we collected a dataset that includes six dissimilar hand gestures. We used a gated recurrent unit network to train a system that, as input, takes raw signals extracted from the surface electromyography sensors. The proposed approach obtained a 99.90% training accuracy and 99.75% validation accuracy. We also evaluated the proposed system on a test set (new subjects) obtaining an accuracy of 77.85%. In addition, we showed the test prediction results for each gesture separately and analyzed which gestures for the Myo armband with our suggested network can be difficult to distinguish accurately. Moreover, we studied for first time the gated recurrent unit network capability in gesture recognition approaches. Finally, we integrated our method in a system that is able to classify live hand gestures.

scholarly journals Design and Validation of a Low Cost Programmable Controlled Environment for Study and Production of Plants, Mushroom, and Insect Larvae

2019 ◽  
Vol 9 (23) ◽  
pp. 5166 ◽  
Author(s):  
Murali Padmanabha ◽  
Stefan Streif
Keyword(s):  
Quantitative Study ◽  
Low Cost ◽  
User Interaction ◽  
Controlled Environment ◽  
Light Spectrum ◽  
Application Development ◽  
Insect Larvae ◽  
Resource Exchange ◽  
Larval Phase ◽  
Development Framework

Study and optimization of biological processes involved in food production require the quantitative study of the environment’s influences on the organism and eventually the products and byproducts consumed and produced. Commercial growth chambers do not fully support such quantitative study due to the underlying limitations (cost, size, resource exchange, programmability, user interaction, etc.). This work presents a low cost programmable system designed to facilitate such studies in organisms such as plants, fungi, and insect larvae. The proposed system consists of modular units performing specific functions. A sensor cluster for measuring gas concentrations, air properties (temperature, humidity, pressure), and growing medium properties was implemented and tested. Actuators for resource exchange, air conditioning, and light spectrum adjustment are proposed. A three-tier hierarchical software framework consisting of open-source cloud platform for data aggregation and user interaction; microcontroller firmware; and an application development framework for test automation and experiment regime design is developed. Series of experiments and tests were performed using the designed hardware and software to evaluate its capabilities and limitations. This controlled environment was used to study photosynthesis in Ocimum basilicum and, in a second experiment, the evolution of the metabolic activity of Hermetia illucens larvae over its larval phase.

scholarly journals Design and Implementation of a Machine Learning Assisted Smart Wheelchair in an IoT Environment

2021 ◽  
Author(s):  
Lijo Jacob Varghese ◽  
Suma Sira Jacob ◽  
CHINNASAMY SUNDAR ◽  
Jacob Raglend I
Keyword(s):  
Machine Learning ◽  
Degrees Of Freedom ◽  
Low Cost ◽  
Mode Selection ◽  
The Elderly ◽  
Physical Structure ◽  
Mobile App ◽  
Multiple Control ◽  
Hand Gestures ◽  
Smart Wheelchair

Abstract Gesture controlled wheelchair is designed and intended to perform specific job functions combining software interfacing with the hardware along with the embedded electronics, through hand controlled gestures. In this paper, a novel multiple control option-based wheelchair is proposed to cater to the needs of handicapped patients and senior citizens. This work is aimed at designing, integrating, coding, interfacing and testing a fully motorized, gesture controlled wheelchair which involves the physical implementation of the hardware, the software interfacing and testing. This Smart wheelchair is furnished with sensors, interactive cameras controlled by a processor unit that can control the various tasks it is designed to perform. The proposed Smart Wheelchair utilizes micro-electro-mechanical-system (MEMS) accelerometers to recognize various hand gestures performing a specific task. It is an accelerometer-based system which controls a robotic arm wirelessly using a small, low-cost, 3-axis degrees of freedom accelerometer through RF signals. The gestures are also trained by machine learning to identify the training patterns by choosing the appropriate mode selection. The hand gestures are thus based on motion sensor and pattern recognition. Apart from these hand gestures, the smart wheelchair can also be controlled by an android mobile app through a smartphone or by a hand held device that can navigate the smart wheelchair in the forward, backward, right, left directions and also perform a stop operation. The Smart Wheelchair also detects an obstruction present on the way of navigation and is operated in accordance with the command. An interactive camera equipped with a microphone and speaker is meant for communication for the elderly for sending and receiving voice commands remotely. The camera can be accessed through an IoT environment which can be communicated on remote IP addresses on smartphones and personal computers. There are two Arduino Uno Rev3 Controller modules programmed to control the gestures of the gyroscopic accelerometer and other control methods based on a mode selection switch held by the user. The proposed methodology is also realized by Proteus, a simulation tool to check its practical credibility. The proposed circuitry is physically realized as a Smart Wheelchair prototype implemented with the above multi control which could be modified as any physical structure platform having two wheels.

Youtube™ as a Source of Information About Primary Bone Tumours

2012 ◽  
Vol 94 (7) ◽  
pp. 228-231 ◽  
Author(s):  
N Campbell ◽  
S Ogilvie ◽  
C Gerrand
Keyword(s):  
Health Information ◽  
Low Cost ◽  
User Interaction ◽  
Misleading Information ◽  
Public Health Information ◽  
Rapid Transmission ◽  
Primary Bone ◽  
Source Citation ◽  
Primary Bone Tumours ◽  
Source Of Information

The internet is now one of the most popular and easily available sources of public health information, especially for teens and young adults. YouTube™ has over 2 billion views per day and 24 hours of video uploaded per minute. It should therefore be regarded as an important source of health information with the advantages of low-cost, rapid transmission through a wide community and user interaction. however, as with many internet sites, the content on YouTube™ is not peer reviewed and there is a lack of source citation. There is therefore a risk of disseminating misleading information as registered users can post any content they choose.

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