scholarly journals A UWB-Driven Self-Actuated Projector Platform for Interactive Augmented Reality Applications

2021 ◽  
Vol 11 (6) ◽  
pp. 2871
Author(s):  
Ahmed Elsharkawy ◽  
Khawar Naheem ◽  
Dongwoo Koo ◽  
Mun Sang Kim
Keyword(s):  
Augmented Reality ◽  
Interaction Design ◽  
Rapid Development ◽  
Interactive Technology ◽  
Ultra Wideband ◽  
Wireless Sensor ◽  
Interactive System ◽  
Input Device ◽  
Reasonable Accuracy ◽  
Calibration Algorithm

With the rapid development of interactive technology, creating systems that allow users to define their interactive envelope freely and provide multi-interactive modalities is important to build up an intuitive interactive space. We present an indoor interactive system where a human can customize and interact through a projected screen utilizing the surrounding surfaces. An ultra-wideband (UWB) wireless sensor network was used to assist human-centered interaction design and navigate the self-actuated projector platform. We developed a UWB-based calibration algorithm to facilitate the interaction with the customized projected screens, where a hand-held input device was designed to perform mid-air interactive functions. Sixteen participants were recruited to evaluate the system performance. A prototype level implementation was tested inside a simulated museum environment, where a self-actuated projector provides interactive explanatory content for the on-display artifacts under the user’s command. Our results depict the applicability to designate the interactive screen efficiently indoors and interact with the augmented content with reasonable accuracy and relatively low workload. Our findings also provide valuable user experience information regarding the design of mobile and projection-based augmented reality systems, with the ability to overcome the limitations of other conventional techniques.

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.

App design of distance art education platform under internet ecological environment

2021 ◽  
pp. 002072092098352
Author(s):  
Lanlan Xu ◽  
Qiang Zhou
Keyword(s):  
Art Education ◽  
Interaction Design ◽  
Rapid Development ◽  
Development Trend ◽  
Mobile App ◽  
Traditional Art ◽  
Art Teaching ◽  
Education Platform ◽  
App Design ◽  
At Home

With the rapid development of computer and network technology, the application of mobile app has been involved in all walks of life, especially the traditional art teaching mode. Therefore, it is of great significance to design an app with art learning and education as the main content based on the concept of young people's cognitive psychology and art training. This paper first analyzes the current situation and development trend of art education app at home and abroad, then analyzes and studies the design and application needs of education app at home, clarifies the needs of students and teachers, analyzes the visual and psychological characteristics of teenagers and their impact on interface and interaction design, and finally designs an art education app that meets the domestic needs. The results show that the app can enhance the interest of young people in art learning.

Key IOT Technology and Application Research

2014 ◽  
Vol 543-547 ◽  
pp. 3411-3414
Author(s):  
Xu Bing
Keyword(s):  
Wireless Sensor Network ◽  
Internet Of Things ◽  
Intelligent Transportation System ◽  
Rapid Development ◽  
Intelligent Transportation ◽  
Wireless Sensor ◽  
Medical Monitoring ◽  
Application Research ◽  
Iot Applications ◽  
Architectural Model

Key core technologies of IOT (internet of things) have to be addressed to achieve rapid development. This paper focused on studying RFID, wireless sensor network (WSN) and TCCP which were integrated to address the IOT application problems. Meanwhile, an IOT architectural model was established and the IOT applications in real-time medical monitoring, intelligent transportation system (ITS), intelligent appliances and intelligent agriculture were introduced.

scholarly journals Use cases and usability challenges for head-mounted displays in healthcare

2015 ◽  
Vol 1 (1) ◽  
pp. 534-537 ◽  
Author(s):  
T. Mentler ◽  
C. Wolters ◽  
M. Herczeg
Keyword(s):  
Augmented Reality ◽  
Emergency Medical Services ◽  
Information Visualization ◽  
Nursing Staff ◽  
Interaction Design ◽  
Use Cases ◽  
Design Approach ◽  
User Centered Design ◽  
Head Mounted Displays ◽  
Mobile Context

AbstractIn the healthcare domain, head-mounted displays (HMDs) with augmented reality (AR) modalities have been reconsidered for application as a result of commercially available products and the needs for using computers in mobile context. Within a user-centered design approach, interviews were conducted with physicians, nursing staff and members of emergency medical services. Additionally practitioners were involved in evaluating two different head-mounted displays. Based on these measures, use cases and usability considerations according to interaction design and information visualization were derived and are described in this contribution.

Media studies, mobile augmented reality, and interaction design

interactions ◽  
2013 ◽  
Vol 20 (1) ◽  
pp. 36-45 ◽  
Author(s):  
Jay David Bolter ◽  
Maria Engberg ◽  
Blair MacIntyre
Keyword(s):  
Augmented Reality ◽  
Media Studies ◽  
Interaction Design ◽  
Mobile Augmented Reality

A Novel Method for Data Calibration in Wireless Sensor Networks

2013 ◽  
Vol 347-350 ◽  
pp. 1068-1073
Author(s):  
Wei Min Qi ◽  
Jie Xiao
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Measurement Errors ◽  
Information Technologies ◽  
Sensor Data ◽  
Wireless Sensor ◽  
Network Data ◽  
Error Elimination ◽  
Calibration Algorithm ◽  
Data Calibration

In order to provide efficient and suitable services for users in a ubiquitous computing environment, many kinds of context information technologies have been researched. Wireless sensor networks are among the most popular technologies providing such information. Therefore, it is very important to guarantee the reliability of sensor data gathered from wireless sensor networks. However there are several factors associated with faulty sensor readings which make sensor readings unreliable. The research put forward classifying faulty sensor readings into sensor faults and measurement errors, then propose a novel in-network data calibration algorithm which includes adaptive fault checking, measurement error elimination and data refinement. The proposed algorithm eliminates faulty readings as well as refines normal sensor readings and increase reliability. The simulation study shows that the in-network data calibration algorithm is highly reliable and its network overhead is very low compared to previous works.

scholarly journals Research on 5G-Oriented Wireless Sensor Array of Millimeter Hybrid Beam Sensing Terminal

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Shengli Yan
Keyword(s):  
Channel Estimation ◽  
Millimeter Wave ◽  
Rapid Development ◽  
Mobile Internet ◽  
Projection Algorithm ◽  
Wireless Sensor ◽  
Digital Beamforming ◽  
Hybrid Beam ◽  
Hybrid Beamforming ◽  
Internet Of Things Technology

With the rapid development of information technology, facing the problems and new challenges brought by mobile Internet and Internet of things technology, as one of the key technologies of 5G, millimeter-wave mobile communication (28/38/60/70 GHz) which can realize gigabit (GB/s, or even higher) data transmission rate has also attracted extensive attention of wireless researchers all over the world, it has quickly become a research hotspot in the field of wireless communication. In the millimeter-wave massive MIMO downlink wireless sensor system, a block diagonal beamforming algorithm based on the approximate inverse of Neumann series is improved to obtain complete digital beamforming. Then, when designing hybrid beamforming, channel estimation and high-dimensional singular value decomposition are required for traditional analog and digital hybrid beamforming. A low complexity hybrid beamforming scheme is designed. An improved gradient projection algorithm is proposed in the design of analog beamforming, which can solve the problem of high computational complexity and less damage to guarantee and rate. Simulation results show that the hybrid beam terminal of the sensor reduces the number of RF links required for full digital beamforming and is as close to the spectral efficiency performance of full digital beamforming as possible. The results show that the performance of the designed hybrid beamforming scheme can still be close to that of the pure digital beamforming scheme without involving channel estimation and SVD decomposition.

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