Multi-sensor navigation algorithm using monocular camera, IMU and GPS for large scale augmented reality

Position information is very important tactical information in large-scale joint military operations. Positioning with datalink time of arrival (TOA) measurements is a primary choice when a global navigation satellite system (GNSS) is not available, datalink members are randomly distributed, only estimates with measurements between navigation sources and positioning users may lead to a unsatisfactory accuracy, and positioning geometry of altitude is poor. A time division multiple address (TDMA) datalink cooperative navigation algorithm based on INS/JTIDS/BA is presented in this paper. The proposed algorithm is used to revise the errors of the inertial navigation system (INS), clock bias is calibrated via round-trip timing (RTT), and altitude is located with height filter. The TDMA datalink cooperative navigation algorithm estimate errors are stated with general navigation measurements, cooperative navigation measurements, and predicted states. Weighted horizontal geometric dilution of precision (WHDOP) of the proposed algorithm and the effect of the cooperative measurements on positioning accuracy is analyzed in theory. We simulate a joint tactical information distribution system (JTIDS) network with multiple members to evaluate the performance of the proposed algorithm. The simulation results show that compared to an extended Kalman filter (EKF) that processes TOA measurements sequentially and a TDMA datalink navigation algorithm without cooperative measurements, the TDMA datalink cooperative navigation algorithm performs better.

Download Full-text

Spatial multiplexing holographic combiner for glasses-free augmented reality

Nanophotonics ◽

10.1515/nanoph-2020-0243 ◽

2020 ◽

Vol 9 (9) ◽

pp. 3003-3010

Author(s):

Jiacheng Shi ◽

Wen Qiao ◽

Jianyu Hua ◽

Ruibin Li ◽

Linsen Chen

Keyword(s):

Augmented Reality ◽

Large Scale ◽

Motion Parallax ◽

Visible Spectrum ◽

Physical World ◽

Spatial Multiplexing ◽

White Balance ◽

Full Color ◽

Entire Visible Spectrum ◽

3D Scene

AbstractGlasses-free augmented reality is of great interest by fusing virtual 3D images naturally with physical world without the aid of any wearable equipment. Here we propose a large-scale spatial multiplexing holographic see-through combiner for full-color 3D display. The pixelated metagratings with varied orientation and spatial frequency discretely reconstruct the propagating lightfield. The irradiance pattern of each view is tailored to form super Gaussian distribution with minimized crosstalk. What’s more, spatial multiplexing holographic combiner with customized aperture size is adopted for the white balance of virtually displayed full-color 3D scene. In a 32-inch prototype, 16 views form a smooth parallax with a viewing angle of 47°. A high transmission (>75%) over the entire visible spectrum range is achieved. We demonstrated that the displayed virtual 3D scene not only preserved natural motion parallax, but also mixed well with the natural objects. The potential applications of this study include education, communication, product design, advertisement, and head-up display.

Download Full-text

Design, Large-Scale Usage Testing, and Important Metrics for Augmented Reality Gaming Applications

ACM Transactions on Multimedia Computing Communications and Applications ◽

10.1145/3311748 ◽

2019 ◽

Vol 15 (2) ◽

pp. 1-18 ◽

Cited By ~ 1

Author(s):

Pierdicca Roberto ◽

Frontoni Emanuele ◽

Zingaretti Primo ◽

Mancini Adriano ◽

Loncarski Jelena ◽

...

Keyword(s):

Augmented Reality ◽

Large Scale ◽

Scale Usage

Download Full-text

HoloRoyale: A Large Scale High Fidelity Augmented Reality Game

2018 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct) ◽

10.1109/ismar-adjunct.2018.00120 ◽

2018 ◽

Author(s):

Damien Hompapas ◽

Christian Sandor ◽

Alexander Plopski ◽

Daniel Saakes ◽

Dong Hyeok Yun ◽

...

Keyword(s):

Augmented Reality ◽

Large Scale ◽

High Fidelity ◽

Augmented Reality Game

Download Full-text

Konsep Augmented Reality Sebagai Pengembangan Pemasaran Pariwisata dalam Menghadapi New Normal Masa Pandemi Covid-19

Jurnal Ilmiah Akomodasi Agung ◽

10.51827/jiaa.v7i2.47 ◽

2020 ◽

Vol 7 (2) ◽

Author(s):

Ellyta Tambunan ◽

Anwari Masatip

Keyword(s):

Augmented Reality ◽

Large Scale ◽

Considerable Effect ◽

User Preferences ◽

Reference Source ◽

Online Information ◽

New Normal ◽

Digital Service ◽

Use Of Technology ◽

Mobile Ar

The use of technology today in various sectors of life is very high, this can also seen from the needs and improvements provided by this digital service. Augmented Reality (AR) is one of the organizations that builds and improves online information today. The Covid-19 pandemic had a considerable effect on the use of this technology with the imposition of large-scale physical distancing, this depends on various sectors that exist today, especially the tourism sector. Therefore, it has a big impact on tourism activities / activities, both on a national and international scale (foreign) who will visit tourist spots / destinations. Augmented Reality has various features that support in various fields, one of which is traveling. The scientific and theoretical studies in this study provide a useful reference source for developers of mobile AR applications, tourism managers, and effective marketing strategies in facing the new normal era today. So that tourism businesses or tourist destinations better understand user preferences for mobile AR applications and others that are able to maintain behavior can still enjoy travel with their impulsivity in the context of tourism as a result.

Download Full-text