The effect of an occluder on near field depth matching in optical see-through augmented reality

2014 ◽  
Author(s):  
Chunya Hua ◽  
J. Edward Swan
Keyword(s):  
Augmented Reality ◽  
Near Field

The Use of Embedded Mobile, RFID, Location Based Services, and Augmented Reality in Mobile Applications

2017 ◽  
Vol 8 (1) ◽  
pp. 42-52 ◽  
Author(s):  
Greg Gogolin ◽  
Erin Gogolin
Keyword(s):  
Augmented Reality ◽  
Mobile Device ◽  
Radio Frequency Identification ◽  
Mobile Applications ◽  
Near Field ◽  
Location Based Services ◽  
Payment Systems ◽  
Rfid Tag ◽  
Frequency Identification ◽  
Mobile Rfid

The proliferation of mobile devices such as smart phones and other handheld appliances has stimulated the development of a broad range of functionality, including medical, retail, gaming, and personal applications. Technology that has been leveraged to enable many of these uses includes embedded mobile, radio frequency identification, location based services, and augmented reality. Embedded mobile refers to preprogrammed tasks that are performed on a mobile device. Personal care and monitoring is one of the most common uses of embedded mobile. RFID involves communication between a tag and a reader. Mobile RFID extends the technology by tagging the mobile device with an RFID tag to perform tasks on the device. Near field communication is frequently utilized in mobile payment systems. Advertisers find this of significant use in focusing advertisements based on the location of an individual. Augmented reality involves the use of computer generated or enhanced sensory input such as audio and visual components to enhance the perception of reality.

scholarly journals Use of Random Dot Patterns in Achieving X-Ray Vision for Near-Field Applications of Stereoscopic Video-Based Augmented Reality Displays

2017 ◽  
Vol 26 (1) ◽  
pp. 42-65 ◽  
Author(s):  
Sanaz Ghasemi ◽  
Mai Otsuki ◽  
Paul Milgram ◽  
Ryad Chellali
Keyword(s):  
Augmented Reality ◽  
Near Field ◽  
Virtual Object ◽  
Real Surface ◽  
Stereoscopic Video ◽  
Surface Information ◽  
X Ray ◽  
The Real ◽  
Random Dot Patterns ◽  
Dot Density

This article addresses some of the challenges involved with creating a stereoscopic video augmented reality “X-ray vision” display for near-field applications, which enables presentation of computer-generated objects as if they lie behind a real object surface, while maintaining the ability to effectively perceive information that might be present on that surface. To achieve this, we propose a method in which patterns consisting of randomly distributed dots are overlaid onto the real surface prior to the rendering of a virtual object behind the real surface using stereoscopic disparity. It was hypothesized that, even though the virtual object is occluding the real object’s surface, the addition of the random dot patterns should increase the strength of the binocular disparity cue, resulting in improved performance in localizing the virtual object behind the surface. In Phase I of the experiment reported here, the feasibility of the display principle was confirmed, and concurrently the effects of relative dot size and dot density on the presence and sensitivity of any perceptual bias in localizing the virtual object within the vicinity of a flat, real surface with a periodic texture were assessed. In Phase II, the effect of relative dot size and dot density on perceiving the impression of transparency of the same real surface while preserving detection of surface information was investigated. Results revealed an advantage of the proposed method in comparison with the “No Pattern” condition for the transparency ratings. Surface information preservation was also shown to decrease with increasing dot density and relative dot size.

scholarly journals Infrared marker tracking with the HoloLens for neurosurgical interventions

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Christian Kunz ◽  
Paulina Maurer ◽  
Fabian Kees ◽  
Pit Henrich ◽  
Christian Marzi ◽  
...  
Keyword(s):  
Augmented Reality ◽  
Operating Room ◽  
Near Field ◽  
Medical Applications ◽  
Tracking Accuracy ◽  
Depth Sensor ◽  
Patient Tracking ◽  
Marker Tracking ◽  
Patient Registration ◽  
Augmented Reality System

AbstractPatient tracking is an essential part in a surgical augmented reality system for correct hologram to patient registration. Augmented reality can support a surgeon with visual assistance to navigate more precisely during neurosurgical interventions. In this work, a system for patient tracking based on infrared markers is proposed. These markers are widely used in medical applications and meet the special medical requirements such as sterilizability. A tracking accuracy of 0.76 mm is achieved when using the near field reflectivity and depth sensor of the HoloLens. On the HoloLens a performance of 55–60 fps is reached, which grants a sufficiently stable placement of the holograms in the operating room.

Augmented Reality (AR) Applications in Agriculture

2014 ◽  
pp. 65-79
Author(s):  
Róbert Szilágyi ◽  
Miklós Herdon
Keyword(s):  
Cloud Computing ◽  
Augmented Reality ◽  
Precision Agriculture ◽  
Information Exchange ◽  
Business Processes ◽  
Near Field ◽  
Mobile Systems ◽  
The Internet ◽  
Communication Tool ◽  
Augmented Reality Technology

The new ICT technologies are not only quickly developing but they are also giving birth to newer ICT systems and tools. Using the Internet by means of mobile appliances increases the possibilities. The Internet network has a become essential communication tool in business processes recently. Nowadays the Internet-based applications are more and more successful in agriculture and different parts of the food industry. There are several application areas, such as extension services, precision agriculture, e-commerce, and information services, where the Internet is essential. While studying the use of Augmented Reality technology, it can be concluded that different types of services offer different possibilities. Mobile systems develop very dynamically both in regards to the speed of data transmission and services. New devices like tablets and new services like Cloud Computing, Augmented Reality, and Near Field Communication (NFC) have great potential in agriculture. Cloud Computing provides better resource management and effective cost control. Augmented Reality expands the control, and the NFC gives better personalized information exchange. However, the business assessment of these technologies must not be done only on the basis of the technology and taken out of its environment randomly, since the whole area is very complex. In this chapter, the authors show Augmented Reality and try to highlight the possibilities in agriculture.

Augmented Reality (AR) Applications in Agriculture

2016 ◽  
pp. 1290-1305
Author(s):  
Róbert Szilágyi ◽  
Miklós Herdon
Keyword(s):  
Cloud Computing ◽  
Augmented Reality ◽  
Precision Agriculture ◽  
Information Exchange ◽  
Business Processes ◽  
Near Field ◽  
Mobile Systems ◽  
The Internet ◽  
Communication Tool ◽  
Augmented Reality Technology

The new ICT technologies are not only quickly developing but they are also giving birth to newer ICT systems and tools. Using the Internet by means of mobile appliances increases the possibilities. The Internet network has become an essential communication tool in business processes recently. Nowadays the Internet-based applications are more and more successful in agriculture and different parts of the food industry. There are several application areas, such as extension services, precision agriculture, e-commerce, and information services, where the Internet is essential. While studying the use of Augmented Reality technology, it can be concluded that different types of services offer different possibilities. Mobile systems develop very dynamically both in regards to the speed of data transmission and services. New devices like tablets and new services like Cloud Computing, Augmented Reality, and Near Field Communication (NFC) have great potential in agriculture. Cloud Computing provides better resource management and effective cost control. Augmented Reality expands the control, and the NFC gives better personalized information exchange. However, the business assessment of these technologies must not be done only on the basis of the technology and taken out of its environment randomly, since the whole area is very complex. In this chapter, the authors show Augmented Reality and try to highlight the possibilities in agriculture.

Depth judgment tasks and environments in near-field augmented reality

2011 ◽  
Author(s):  
Gurjot Singh ◽  
J. Edward Swan ◽  
J. Adam Jones ◽  
Stephen R. Ellis
Keyword(s):  
Augmented Reality ◽  
Near Field
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