Video Retrieval Based on Image Queries Using THOG for Augmented Reality Environments

2018 ◽  
Author(s):  
Joolekha bibi Joolee ◽  
Young-Koo Lee
Keyword(s):  
Augmented Reality ◽  
Video Retrieval

scholarly journals A Novel Lightweight Approach for Video Retrieval on Mobile Augmented Reality Environment

2018 ◽  
Vol 8 (10) ◽  
pp. 1860 ◽  
Author(s):  
Joolekha Joolee ◽  
Md Uddin ◽  
Jawad Khan ◽  
Taeyeon Kim ◽  
Young-Koo Lee
Keyword(s):  
Augmented Reality ◽  
Real Time ◽  
Large Scale ◽  
Video Retrieval ◽  
Nearest Neighbor Search ◽  
Mobile Augmented Reality ◽  
Efficient Manner ◽  
Candidate List ◽  
Feature Extraction Method ◽  
Virtual Objects

Mobile Augmented Reality merges the virtual objects with real world on mobile devices, while video retrieval brings out the similar looking videos from the large-scale video dataset. Since mobile augmented reality application demands the real-time interaction and operation, we need to process and interact in real-time. Furthermore, augmented reality based virtual objects can be poorly textured. In order to resolve the above mentioned issues, in this research, we propose a novel, fast and robust approach for retrieving videos on the mobile augmented reality environment using an image and video queries. In the beginning, Top-K key-frames are extracted from the videos which significantly increases the efficiency. Secondly, we introduce a novel frame based feature extraction method, namely Pyramid Ternary Histogram of Oriented Gradient (PTHOG) to extract the shape feature from the virtual objects in an effective and efficient manner. Thirdly, we utilize the Double-Bit Quantization (DBQ) based hashing to accomplish the nearest neighbor search efficiently, which produce the candidate list of videos. Lastly, the similarity measure is performed to re-rank the videos which are obtained from the candidate list. An extensive experimental analysis is performed in order to verify our claims.

Amp Up Your Treatment With Augmented Reality

ASHA Leader ◽  
2013 ◽  
Vol 18 (9) ◽  
pp. 14-14 ◽  
Keyword(s):  
Augmented Reality

Amp Up Your Treatment With Augmented Reality

Planning, simulation, and augmented reality for robotic cardiac procedures: The STARS system of the ChIR team

2003 ◽  
Vol 15 (2) ◽  
pp. 141-156 ◽  
Author(s):  
eve Coste-Maniere ◽  
Louai Adhami ◽  
Fabien Mourgues ◽  
Alain Carpentier
Keyword(s):  
Augmented Reality ◽  
Cardiac Procedures

Augmented Reality--Implications toward Virtual Reality, Human Perception and Performance

2012 ◽  
Author(s):  
R. A. Grier ◽  
H. Thiruvengada ◽  
S. R. Ellis ◽  
P. Havig ◽  
K. S. Hale ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Human Perception ◽  
And Performance

Stellenwert der intraoperativen optischen Kohärenztomografie in der Netzhautchirurgie. Teil 2: contra

2020 ◽  
Vol 237 (10) ◽  
pp. 1225-1229
Author(s):  
Peter Szurman
Keyword(s):  
Augmented Reality ◽  
Präoperative Diagnostik

ZusammenfassungEine der kontroversesten Diskussionen in der Netzhautchirurgie wird derzeit über den Stellenwert der intraoperativen optischen Kohärenztomografie (iOCT) geführt. Hintergrund ist der Wunsch, den 2-dimensionalen Fundusblick des Operateurs mit der geschichteten Tiefeninformation der OCT zu kombinieren, um eine Art 4-dimensionale „Augmented Reality“ (3-D plus Veränderung über die Zeit) zu erreichen. Dies soll feine Strukturen, die dem Blick des Operateurs bisher verborgen sind, sichtbar machen. Deshalb erscheint die Netzhautchirurgie prädestiniert für den Einsatz einer iOCT zu sein. Die große Hoffnung liegt darin, dass ein dynamisches Live-3-D-Bild mit Echtzeit-Feedback dem Operateur zusätzliche Informationen liefert und die Sicherheit verbessert. So faszinierend die iOCT-Technologie auf den ersten Blick ist, so enttäuscht sie doch im klinischen Alltag, gerade in der Makulachirurgie. Sie liefert nur selten Informationen, die ohne iOCT nicht erzielbar wären oder durch präoperative Diagnostik nicht in wesentlich besserer Qualität vorlägen. Hoffnungsvoll sind einige Sonderindikationen, die insbesondere die subretinale Chirurgie betreffen.

Augmented Reality bei der Sentineloperation des Vulvakarzinoms – Ist es machbar?

2016 ◽  
Vol 76 (04) ◽  
Author(s):  
J Pömer ◽  
L Angleitner Boubenizek ◽  
A Habelsberger ◽  
P Oppelt
Keyword(s):  
Augmented Reality
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