scholarly journals Augmented Reality Experience: From High-Resolution Acquisition to Real Time Augmented Contents

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Paolo Clini ◽  
Emanuele Frontoni ◽  
Ramona Quattrini ◽  
Roberto Pierdicca
Keyword(s):  
High Resolution ◽  
Augmented Reality ◽  
Real Time ◽  
Low Cost ◽  
Cultural Institutions ◽  
Mobile Software ◽  
Real Time Image ◽  
Real Scenario ◽  
Social Applications ◽  
Time Image

This paper presents results of a research project “dUcale” that experiments ICT solutions for the museum of Palazzo Ducale (Urbino). In this project, the famed painting the “Città Ideale” becomes a case to exemplify a specific approach to the digital mediation of cultural heritage. An augmented reality (AR) mobile application, able to enhance the museum visit experience, is presented. The computing technologies involved in the project (websites, desktop and social applications, mobile software, and AR) constitute a persuasive environment for the artwork knowledge. The overall goal of our research is to provide to cultural institutions best practices efficiently on low budgets. Therefore, we present a low cost method for high-resolution acquisition of paintings; the image is used as a base in AR approach. The proposed methodology consists of an improved SIFT extractor for real time image. The other novelty of this work is the multipoint probabilistic layer. Experimental results demonstrated the robustness of the proposed approach with extensive use of the AR application in front of the “Città Ideale” painting. To prove the usability of the application and to ensure a good user experience, we also carried out several users tests in the real scenario.

scholarly journals Low-Cost Implementation of Bilinear and Bicubic Image Interpolation for Real-Time Image Super-Resolution

2020 ◽  
Author(s):  
Donya Khaledyan ◽  
Abdolah Amirany ◽  
Kian Jafari ◽  
Mohammad Hossein Moaiyeri ◽  
Abolfazl Zargari Khuzani ◽  
...  
Keyword(s):  
Real Time ◽  
Low Cost ◽  
Super Resolution ◽  
Image Interpolation ◽  
Real Time Image ◽  
Image Super Resolution ◽  
Time Image

A Low-Cost, Low-Power and Real-Time Image Detector for Grape Leaf Esca Disease Based on a Compressed CNN

2021 ◽  
pp. 1-1
Author(s):  
Laura Falaschetti ◽  
Lorenzo Manoni ◽  
Romel Calero Fuentes Rivera ◽  
Danilo Pau ◽  
Gianfranco Romanazzi ◽  
...  
Keyword(s):  
Low Power ◽  
Real Time ◽  
Low Cost ◽  
Image Detector ◽  
Esca Disease ◽  
Real Time Image ◽  
Grape Leaf ◽  
Time Image

scholarly journals Real Time Shadow Mapping for Augmented Reality Photorealistic Rendering

2019 ◽  
Vol 9 (11) ◽  
pp. 2225 ◽  
Author(s):  
Francesco Osti ◽  
Gian Maria Santi ◽  
Gianni Caligiana
Keyword(s):  
Augmented Reality ◽  
Real Time ◽  
Real Life ◽  
Shadow Mapping ◽  
Photorealistic Rendering ◽  
Real Time Image ◽  
Image Capturing ◽  
Microsoft Hololens ◽  
The Right ◽  
Time Image

In this paper, we present a solution for the photorealistic ambient light render of holograms into dynamic real scenes, in augmented reality applications. Based on Microsoft HoloLens, we achieved this result with an Image Base Lighting (IBL) approach. The real-time image capturing that has been designed is able to automatically locate and position directional lights providing the right illumination to the holograms. We also implemented a negative “shadow drawing” shader that contributes to the final photorealistic and immersive effect of holograms in real life. The main focus of this research was to achieve a superior photorealism through the combination of real-time lights placement and negative “shadow drawing” shader. The solution was evaluated in various Augmented Reality case studies, from classical ones (using Vuforia Toolkit) to innovative applications (using HoloLens).

The Use of Real-Time Image Stabilization and Augmented Reality Eyewear in the Treatment of Oscillopsia

2012 ◽  
Vol 146 (6) ◽  
pp. 966-971 ◽  
Author(s):  
David D. Pothier ◽  
Cian Hughes ◽  
Wanda Dillon ◽  
Paul J. Ranalli ◽  
John A. Rutka
Keyword(s):  
Visual Acuity ◽  
Augmented Reality ◽  
Real Time ◽  
Head Movement ◽  
Dynamic Visual Acuity ◽  
Vestibular Loss ◽  
Image Stabilization ◽  
Bilateral Vestibular Loss ◽  
Real Time Image ◽  
Time Image

Objectives/Hypothesis. The symptom of oscillopsia in patients with bilateral vestibular loss (BVL) can be reduced as dynamic visual acuity (DVA), the reduction in visual acuity during head movement, is improved by using real-time image stabilization, delivered by augmented reality eyewear. Setting. Tertiary multidisciplinary neurotology clinic. Study Design. Prospective experimental study. Methods. Immersive virtual reality glasses used in combination with a compact digital video camera were used. A software algorithm was developed that used a center-weighted Lucas-Kanade optical flow method to stabilize video in real time. Six patients with BVL were tested for changes in DVA using the eyewear. The ability to read a Snellen chart during a 2-Hz oscillating head rotation DVA test was measured. Results. For combined scores of vertical and horizontal head rotations, the mean number of lines readable at rest was 7.86, which dropped to 2.77 with head movement (a combination of vertical and horizontal perturbations). This increased to a mean of 6.14 lines with the image stabilization software being activated. This difference was statistically significant ( P < .001). Conclusion. This is the first successful attempt to improve dynamic visual acuity in patients with bilateral vestibular loss. Recent hardware upgrades are promising in improving these results even further.

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