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Computers, Volume 8, Issue 2

June 2019 - 23 articles

Cover Story: Shadow-retargeting maps depict the appearance of real shadows to virtual shadows given the corresponding deformation of scene geometry, such that appearance is seamlessly maintained. By performing virtual shadow reconstruction from unoccluded real-shadow samples observed in the camera frame, this method efficiently recovers deformed shadow appearance. In this manuscript, we introduce a light-estimation approach that enables light-source detection using flat Fresnel lenses that allow this method to work without a set of pre-established conditions. Results are presented on a range of objects, deformations, and illumination conditions in real-time augmented reality (AR) on a mobile device. We demonstrate the practical application of the method in generating otherwise laborious inbetweening frames for 3D-printed stop-motion animation. View this paper.
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Articles (23)

  • Article
  • Open Access
14 Citations
8,463 Views
17 Pages

Cloud vendors offer a variety of serverless technologies promising high availability and dynamic scaling while reducing operational and maintenance costs. One such technology, serverless computing, or function-as-a-service (FaaS), is advertised as a...

  • Article
  • Open Access
5 Citations
6,977 Views
25 Pages

Library organizations have enthusiastically undertaken semantic web initiatives and in particular the data publishing as linked data. Nevertheless, different surveys report the experimental nature of initiatives and the consumer difficulty in re-usin...

  • Article
  • Open Access
7 Citations
7,515 Views
12 Pages

Cloud-Based Image Retrieval Using GPU Platforms

  • Sidi Ahmed Mahmoudi,
  • Mohammed Amin Belarbi,
  • El Wardani Dadi,
  • Saïd Mahmoudi and
  • Mohammed Benjelloun

The process of image retrieval presents an interesting tool for different domains related to computer vision such as multimedia retrieval, pattern recognition, medical imaging, video surveillance and movements analysis. Visual characteristics of imag...

  • Article
  • Open Access
7 Citations
6,651 Views
29 Pages

Modelling and Simulation of a Cloud Platform for Sharing Distributed Digital Fabrication Resources

  • Gianluca Cornetta,
  • Francisco Javier Mateos,
  • Abdellah Touhafi and
  • Gabriel-Miro Muntean

Fabrication as a Service (FaaS) is a new concept developed within the framework of the NEWTON Horizon 2020 project. It is aimed at empowering digital fabrication laboratories (Fab Labs) by providing hardware and software wrappers to expose numericall...

  • Feature Paper
  • Article
  • Open Access
30 Citations
7,629 Views
15 Pages

An Efficient Energy-Aware Tasks Scheduling with Deadline-Constrained in Cloud Computing

  • Said BEN ALLA,
  • Hicham BEN ALLA,
  • Abdellah TOUHAFI and
  • Abdellah EZZATI

Nowadays, Cloud Computing (CC) has emerged as a new paradigm for hosting and delivering services over the Internet. However, the wider deployment of Cloud and the rapid increase in the capacity, as well as the size of data centers, induces a tremendo...

  • Article
  • Open Access
5 Citations
7,059 Views
19 Pages

Distributed Management Systems for Infocommunication Networks: A Model Based on TM Forum Frameworx

  • Valery Mochalov,
  • Natalia Bratchenko,
  • Gennady Linets and
  • Sergey Yakovlev

The existing management systems for networks and communication services do not fully meet the demands of users in next-generation infocommunication services that are dictated by the business processes of companies. Open digital architecture (ODA) is...

  • Feature Paper
  • Article
  • Open Access
8 Citations
6,881 Views
16 Pages

Co-design is used for improving innovation, obtaining better solutions, and higher user satisfaction. In this paper we present how the use of a walk-in virtual environment and actual-size virtual prototypes support co-design. Unlike in most studies w...

  • Article
  • Open Access
4 Citations
6,075 Views
19 Pages

Autonomous Wireless Sensor Networks in an IPM Spatial Decision Support System

  • Mina Petrić,
  • Jurgen Vandendriessche,
  • Cedric Marsboom,
  • Tom Matheussen,
  • Els Ducheyne and
  • Abdellah Touhafi

Until recently data acquisition in integrated pest management (IPM) relied on manual collection of both pest and environmental data. Autonomous wireless sensor networks (WSN) are providing a way forward by reducing the need for manual offload and mai...

  • Article
  • Open Access
5 Citations
5,700 Views
13 Pages

A Sparse Analysis-Based Single Image Super-Resolution

  • Vahid Anari,
  • Farbod Razzazi and
  • Rasoul Amirfattahi

In the current study, we were inspired by sparse analysis signal representation theory to propose a novel single-image super-resolution method termed “sparse analysis-based super resolution” (SASR). This study presents and demonstrates ma...

  • Article
  • Open Access
84 Citations
11,613 Views
14 Pages

Many biological or medical data have numerous features. Feature selection is one of the data preprocessing steps that can remove the noise from data as well as save the computing time when the dataset has several hundred thousand or more features. An...

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Computers - ISSN 2073-431X