A SLAM-Based Mobile Augmented Reality Tracking Registration Algorithm

2019 ◽  
Vol 34 (01) ◽  
pp. 2054005
Author(s):  
Jia Liu ◽  
Yulei Xie ◽  
Shuang Gu ◽  
Xu Chen
Keyword(s):  
Augmented Reality ◽  
Real Time ◽  
Measurement Unit ◽  
Camera Motion ◽  
Mobile Augmented Reality ◽  
Feature Points ◽  
Registration Algorithm ◽  
Localization And Mapping ◽  
Camera Localization ◽  
Slam Algorithm

This paper proposes a simultaneous localization and mapping (SLAM)-based markerless mobile-end tracking registration algorithm to address the problem of virtual image drift caused by fast camera motion in mobile-augmented reality (AR). The proposed algorithm combines the AGAST-FREAK-SLAM algorithm with inertial measurement unit (IMU) data to construct a scene map and localize the camera’s pose. The extracted feature points are matched with feature points in a map library for real-time camera localization and precise registration of virtual objects. Experimental results show that the proposed method can track feature points in real time, accurately construct scene maps, and locate cameras; moreover, it improves upon the tracking and registration robustness of earlier algorithms.

scholarly journals Virtual Object Manipulation by Combining Touch and Head Interactions for Mobile Augmented Reality

2019 ◽  
Vol 9 (14) ◽  
pp. 2933 ◽  
Author(s):  
Ju Young Oh ◽  
Ji Hyung Park ◽  
Jung-Min Park
Keyword(s):  
Augmented Reality ◽  
Head Movements ◽  
Virtual Object ◽  
Measurement Unit ◽  
Ray Casting ◽  
Mobile Augmented Reality ◽  
Interaction Method ◽  
Virtual Objects ◽  
Head Mounted Display ◽  
Touch Interaction

This paper proposes an interaction method to conveniently manipulate a virtual object by combining touch interaction and head movements for a head-mounted display (HMD), which provides mobile augmented reality (AR). A user can conveniently manipulate a virtual object with touch interaction recognized from the inertial measurement unit (IMU) attached to the index finger’s nail and head movements tracked by the IMU embedded in the HMD. We design two interactions that combine touch and head movements, to manipulate a virtual object on a mobile HMD. Each designed interaction method manipulates virtual objects by controlling ray casting and adjusting widgets. To evaluate the usability of the designed interaction methods, a user evaluation is performed in comparison with the hand interaction using Hololens. As a result, the designed interaction method receives positive feedback that virtual objects can be manipulated easily in a mobile AR environment.

scholarly journals Architecture and Architectural Patterns for Mobile Augmented Reality

2021 ◽  
Vol 33 (1) ◽  
Author(s):  
Donald Munro ◽  
Andre Calitz ◽  
Dieter Vogts
Keyword(s):  
Augmented Reality ◽  
Software Architecture ◽  
Real Time ◽  
Sensor Data ◽  
Mobile Augmented Reality ◽  
Software Developers ◽  
Real Time Processing ◽  
Main Requirement ◽  
Architectural Patterns ◽  
Architecture And Design

A software architecture codifies the design choices of software developers, which defines a modularorganizational spine for the design of a software artefact. Different architectures may bespecified for different types of artefacts, a real-time interactive artefact, for example, wouldhave markedly different requirements to those of a batch based transactional system. The use ofsoftware architecture becomes increasingly important as the complexity ofartefacts increases. Augmented Reality blends the real world observed through a computerinterface, with a computer generated virtual world. With the advent ofpowerful mobile devices, Mobile Augmented Reality (MAR)applications have become increasingly feasible, however the increased power hasled to increased complexity. Most MAR research has been directed towardstechnologies and not design resulting in a dearth of architecture and design literature for MAR. This research is targeted at addressing this void. The main requirement that a MAR architecture must meet isidentified as being the efficient real-time processing of data streams such asvideo frames and sensor data. A set of highly parallelised architecturalpatterns are documented within the context of MAR that meet thisrequirement. The contribution of this research is a software architecture, codifiedas architectural patterns, for MAR.

scholarly journals REINFORCEMENT LEARNING HELPS SLAM: LEARNING TO BUILD MAPS

2020 ◽  
Vol XLIII-B4-2020 ◽  
pp. 329-335
Author(s):  
N. Botteghi ◽  
B. Sirmacek ◽  
R. Schulte ◽  
M. Poel ◽  
C. Brune
Keyword(s):  
Reinforcement Learning ◽  
Real Time ◽  
A Priori ◽  
Simultaneous Localization And Mapping ◽  
Indoor Environments ◽  
Robot Localization ◽  
Robust Solution ◽  
Localization And Mapping ◽  
Reward Functions ◽  
Slam Algorithm

Abstract. In this research, we investigate the use of Reinforcement Learning (RL) for an effective and robust solution for exploring unknown and indoor environments and reconstructing their maps. We benefit from a Simultaneous Localization and Mapping (SLAM) algorithm for real-time robot localization and mapping. Three different reward functions are compared and tested in different environments with growing complexity. The performances of the three different RL-based path planners are assessed not only on the training environments, but also on an a priori unseen environment to test the generalization properties of the policies. The results indicate that RL-based planners trained to maximize the coverage of the map are able to consistently explore and construct the maps of different indoor environments.

scholarly journals Implementasi Model Mobile Augmented Reality e-Booklet untuk Mempromosikan Object Wisata Unggulan Provinsi Riau dengan metode 3D Object Tracking

2016 ◽  
Vol 1 (2) ◽  
pp. 177
Author(s):  
Unang Rio ◽  
Susi Erlinda ◽  
Dwi Haryono
Keyword(s):  
Augmented Reality ◽  
Object Tracking ◽  
Real Time ◽  
Mobile Augmented Reality ◽  
Pass Filter ◽  
3D Object ◽  
High Pass Filter ◽  
High Pass

Intisari  - Provinsi Riau terletak di lokasi yang strategis dan memiliki kekayaan keindahan alam dan budaya  yang  unik,  Riau  menawarkan  banyak  tempat  wisata  baik alam dan  budaya.  Tujuan  dari penelitian ini untuk membuat aplikasi  yang membantu masyarakat  untuk mendapatkan informasi objek wisata unggulan di Provinsi Riau. Salah satu faktor yang menyebabkan kurang berkembangnya sektor pariwisata di Provinsi Riau saat ini adalah karena pengelolaan informasi yang bersifat promosi dan belum mampu memaksimalkan ketersediaan teknologi informasi yang tersedia. Penggunaan teknologi augmented reality adalah teknologi yang menggabungkan benda maya tiga dimensi ke dalam  sebuah  lingkungan  tiga-dimensi  nyata  dan  kemudian  memproyeksikan  benda-benda  maya secara real time. Markerless objek wisata unggulan adalah bono surfing, balap alur, tongkang bahan bakar, pantai Rupat, istana siak dan Candi Muara Takus. pembuatan obyek dan membaca penanda scan dari kamera menggunakan teknik markerbase dan Markerless dengan objek Pelacakan metode 3D dan algoritma SIFT (Skala Fitur invarian Transform). Proses yang terkandung dalam deteksi obyek membaca gambar, mempertajam gambar dengan memanfaatkan High Pass Filter; membaca gambar dari metode SIFT bahwa proses akan menghasilkan deteksi titik. Hasil pengujian untuk melihat efek dari jarak antara smartphone kamera dengan spidol, jarak yang diperoleh sangat ideal untuk menampilkan objek 3D, sampai 40 cm. pengujian aplikasi ARRiauTouris mampu mendeteksi penanda dengan jarak dekat 10 cm dan jarak maksimum 67 cm, dan memperoleh waktu rata-rata untuk objek (mean) antara 0,80 detik menjadi 0,93 detik. Kata kunci: obyek wisata, augmented reality, 3D pelacakan objek, provinsi riau

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