scholarly journals Virtual navigation tested on a mobile app is predictive of real-world wayfinding navigation performance

2018 ◽  
Author(s):  
A. Coutrot ◽  
S. Schmidt ◽  
L. Coutrot ◽  
J. Pittman ◽  
L. Hong ◽  
...  
Keyword(s):  
Real World ◽  
Cognitive Assessment ◽  
Path Integration ◽  
Ecological Validity ◽  
Low Cost ◽  
Mobile App ◽  
Video Gaming ◽  
The Real ◽  
Navigation Errors ◽  
World Environment

AbstractVirtual reality environments presented on tablets and smartphones have potential to aid the early diagnosis of conditions such as Alzheimer’s dementia by quantifying impairments in navigation performance. However, it is unclear whether performance on mobile devices can predict navigation errors in the real world. We compared the performance of 60 participants (30 females, 18-35 years old) at wayfinding and path integration tasks designed in our mobile app ‘Sea Hero Quest’ with their performance at similar tasks in a real-world environment. We first performed this experiment in the streets of London (UK) and replicated it in Paris (France). In both cities, we found a significant correlation between virtual and real-world wayfinding performance and a male advantage in both environments, although smaller in the real world (Cohen’s d in the game = 0.89, in the real world = 0.59). Results in London and Paris were highly similar, and controlling for familiarity with video games did not change the results. The strength of the correlation between real world and virtual environment increased with the difficulty of the virtual wayfinding task, indicating that Sea Hero Quest does not merely capture video gaming skills. The fact that the Sea Hero Quest wayfinding task has real-world ecological validity constitutes a step toward controllable, sensitive, safe, low-cost, and easy to administer digital cognitive assessment of navigation ability.

Real-world environment affects the color appearance of virtual stimuli produced by augmented reality

2019 ◽  
Vol 2019 (1) ◽  
pp. 237-242
Author(s):  
Siyuan Chen ◽  
Minchen Wei
Keyword(s):  
Augmented Reality ◽  
Real World ◽  
Mixed Reality ◽  
Rapid Development ◽  
Light Level ◽  
Color Appearance ◽  
Chromatic Adaptation ◽  
Lighting Condition ◽  
The Real ◽  
World Environment

Color appearance models have been extensively studied for characterizing and predicting the perceived color appearance of physical color stimuli under different viewing conditions. These stimuli are either surface colors reflecting illumination or self-luminous emitting radiations. With the rapid development of augmented reality (AR) and mixed reality (MR), it is critically important to understand how the color appearance of the objects that are produced by AR and MR are perceived, especially when these objects are overlaid on the real world. In this study, nine lighting conditions, with different correlated color temperature (CCT) levels and light levels, were created in a real-world environment. Under each lighting condition, human observers adjusted the color appearance of a virtual stimulus, which was overlaid on a real-world luminous environment, until it appeared the whitest. It was found that the CCT and light level of the real-world environment significantly affected the color appearance of the white stimulus, especially when the light level was high. Moreover, a lower degree of chromatic adaptation was found for viewing the virtual stimulus that was overlaid on the real world.

Technology-Supported Tourist Guiding in Aviation Tourism

2020 ◽  
pp. 257-267
Author(s):  
Azizul Hassan
Keyword(s):  
Augmented Reality ◽  
Diffusion Of Innovation ◽  
Real World ◽  
Perceptual Information ◽  
The Internet ◽  
Diffusion Of Innovation Theory ◽  
The Real ◽  
National Flag ◽  
Interactive Experience ◽  
World Environment

Augmented reality (AR) offers an interactive experience of the real-world environment when an object of the real-world is augmented by computer-generated perceptual information and relevant artefacts. This is a conceptual chapter based on the review of available literature. Also, resources on the internet have also been accessed and reviewed. On the context of the Diffusion of Innovation theory, this research aims to outline AR guiding for in an airport used for tourist aviation. Biman Bangladesh Airlines, the national flag carrier of the country, is the example where this study also explains the possible challenges and benefits that AR guiding facilities can possibly have. This research outlines two specific areas of management and marketing issues are analysis on the way to implement such guiding. Findings show that from the understanding of the Diffusion of Innovation, AR guiding in these days is adopted by an ‘Early Majority' who are followers and engages in reading those reviews given by the previous adopters of new services or products.

scholarly journals Study of the correlation of factors affecting frequency of social activity transfer from virtual environment to real-world environment and vice versa

2019 ◽  
Vol 70 ◽  
pp. 08046
Author(s):  
Anton Zagranichniy
Keyword(s):  
Virtual Environment ◽  
Real World ◽  
Social Activity ◽  
Subjective Assessment ◽  
Demographic Characteristics ◽  
Factors Affecting ◽  
The Real ◽  
Size Number ◽  
Environment Factor ◽  
World Environment

The article presents research results demonstrating interrelation between factors affecting frequency of social activity transfer from the virtual environment to the real-world one and vice versa. In the course of the study we investigated 19 different factors, including socio-demographic characteristics, amount and specificity of contacts in each of the environments, subjective assessment of social activity characteristics in various environments. The study involved 214 respondents aged 15 to 24 from the cities of Balakovo, Saratov, and Moscow. We analysed and interpreted the correlation interrelation via social activity transfer from one environment to another and by such factors as: place of residence size; number of friends in the virtual environment; factor regarding frequency of misconduct situations that were followed by moral responsibility in the real environment; factor of compliance with social norms in the virtual environment.

Klarite as a label-free SERS-based assay: a promising approach for atmospheric bioaerosol detection

The Analyst ◽  
2020 ◽  
Vol 145 (1) ◽  
pp. 277-285 ◽  
Author(s):  
Muhammad Ali Tahir ◽  
Xinlian Zhang ◽  
Hanyun Cheng ◽  
Dong Xu ◽  
Yiqing Feng ◽  
...  
Keyword(s):  
Real World ◽  
Label Free ◽  
The Real ◽  
Bioaerosol Detection ◽  
World Environment ◽  
Detection And Quantification

We present a SERS-based Klarite interface for the rapid and culture-free detection and quantification of atmospheric bioaerosols in the real-world environment.

scholarly journals The ‘Real-World Approach’ and Its Problems: A Critique of the Term Ecological Validity

2020 ◽  
Vol 11 ◽  
Author(s):  
Gijs A. Holleman ◽  
Ignace T. C. Hooge ◽  
Chantal Kemner ◽  
Roy S. Hessels
Keyword(s):  
Real World ◽  
Ecological Validity ◽  
The Real

Optimal path planning of mobile robot using the hybrid cuckoo–bat algorithm in assorted environment

2019 ◽  
Vol 7 (1) ◽  
pp. 35-52 ◽  
Author(s):  
Balamurali Gunji ◽  
Deepak B.B.V.L. ◽  
Saraswathi M.B.L. ◽  
Umamaheswara Rao Mogili
Keyword(s):  
Path Planning ◽  
Mobile Robot ◽  
Real World ◽  
Hybrid Algorithm ◽  
Optimal Path ◽  
Bat Algorithm ◽  
Cuckoo Search ◽  
Content Type ◽  
The Real ◽  
World Environment

Purpose The purpose of this paper is to obtain an optimal mobile robot path planning by the hybrid algorithm, which is developed by two nature inspired meta-heuristic algorithms, namely, cuckoo-search and bat algorithm (BA) in an unknown or partially known environment. The cuckoo-search algorithm is based on the parasitic behavior of the cuckoo, and the BA is based on the echolocation behavior of the bats. Design/methodology/approach The developed algorithm starts by sensing the obstacles in the environment using ultrasonic sensor. If there are any obstacles in the path, the authors apply the developed algorithm to find the optimal path otherwise reach the target point directly through diagonal distance. Findings The developed algorithm is implemented in MATLAB for the simulation to test the efficiency of the algorithm for different environments. The same path is considered to implement the experiment in the real-world environment. The ARDUINO microcontroller along with the ultrasonic sensor is considered to obtain the path length and time of travel of the robot to reach the goal point. Originality/value In this paper, a new hybrid algorithm has been developed to find the optimal path of the mobile robot using cuckoo search and BAs. The developed algorithm is tested with the real-world environment using the mobile robot.

Awareness of the real-world environment when using augmented reality head-mounted display

2020 ◽  
Vol 88 ◽  
pp. 103145 ◽  
Author(s):  
Susanna Aromaa ◽  
Antti Väätänen ◽  
Iina Aaltonen ◽  
Vladimir Goriachev ◽  
Kaj Helin ◽  
...  
Keyword(s):  
Augmented Reality ◽  
Real World ◽  
The Real ◽  
Head Mounted Display ◽  
World Environment

A Low-Cost Real-World Planning Strategy for Deploying a Dedicated Short-Range Communications Roadside Unit on a Highway Off-Ramp

2018 ◽  
Vol 2672 (19) ◽  
pp. 124-134 ◽  
Author(s):  
Jonathan B. Walker ◽  
Kevin Heaslip
Keyword(s):  
Real World ◽  
Intelligent Transportation Systems ◽  
Short Range ◽  
Environmental Changes ◽  
Low Cost ◽  
Transportation Systems ◽  
Planning Strategy ◽  
Dedicated Short Range Communications ◽  
Roadside Unit ◽  
World Environment

The deployment of dedicated short-range communications (DSRC) roadside units (RSUs) allows a connected or automated vehicle to acquire information from the surrounding environment, such as a traffic light’s signal phase and timing, using vehicle-to-infrastructure communication. Several scholarly papers exist on planning strategies for DSRC RSU deployments using simulation without accounting for wireless communication constraints and environmental changes. This paper proposes an empirical-based planning strategy for a highway off-ramp in a real-world environment. The research goal focuses on developing a low-cost and structured deployment plan for DSRC RSUs with the following objectives: use free planning tools; apply the deployment strategy in a real-world environment; utilize publicly available DSRC RSU data measurements; and leverage existing intelligent transportation systems infrastructure when possible. The proposed planning strategy includes three steps: (1) conduct a virtual site survey, (2) gather baseline performance data for the DSRC RSU equipment, and (3) generate a predictive radio frequency signal. The planning strategy was successfully applied on a highway off-ramp at exit 19A of the Capital Beltway, which encircles Washington, DC.

scholarly journals BricksAR: exploring the potential of augmented reality to inform assembly processes in construction

2020 ◽  
Author(s):  
João Pedro Andrade Caixeta ◽  
André Luís De Araújo
Keyword(s):  
Augmented Reality ◽  
Real World ◽  
Low Cost ◽  
Manual Assembly ◽  
Ongoing Research ◽  
The Real ◽  
Modeling Simulation ◽  
Design Production ◽  
Manufacturing Methods ◽  
Assembly Operations

The use of Augmented Reality (AR) systems in construction processes can represent an essential transformation in the communication between design and production. However, supposing that design-production translations can be obtained from several manufacturing methods (such as robotic, manual, modular, non-modular, and others), there are not enough studies that explored the potential uses of AR as an assistant for assembly operations. To tackle this problem, this ongoing research proposes to investigate the potentials of a low-cost and marker-based AR system to conduct different manual assembly processes. With the observational focus on aspects of precision and feasibility, we used scientific reductions based on modeling, simulation, and prototyping to provide inferences about the proposed tool's behavior in the real world.

scholarly journals Age and Gender Detection Using CNN

2021 ◽  
pp. 29-33
Author(s):  
Prof. Jaydeep Patil ◽  
Rohit Thombare ◽  
Yash deo ◽  
Rohit Kharche ◽  
Nikhil Tagad
Keyword(s):  
Real World ◽  
Working Environment ◽  
Age And Gender ◽  
The Real ◽  
Lighting Conditions ◽  
And Gender ◽  
Gender Detection ◽  
World Environment ◽  
Age Estimates

In recent years, much effort has been put forth to balance age and sexuality. It has been reported that the age can be accurately measured under controlled areas such as front faces, no speech, and stationary lighting conditions. However, it is not intended to achieve the same level of accuracy in the real world environment due to the wide variation in camera use, positioning, and lighting conditions. In this paper, we use a recently proposed mechanism to study equipment called covariate shift adaptation to reduce the change in lighting conditions between the laboratory and the working environment. By examining actual age estimates, we demonstrate the usefulness of our proposed approach.

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