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Resource Management and Scheduling in Edge-Based Infrastructures
,
Ph.D. Dissertation
Sharif University of Technology
;
Izadi, Mohammad
(Supervisor)
Abstract
Cloud computing has a centralized computing architecture, such that services are provided by cloud servers at far distances from user devices. So, the data gathered by user devices must be sent to cloud servers. This is leading to various challenges, such as bandwidth, latency and privacy, especially in IoT where the number of devices is very large. The devices belong to different users with specific QoS requirements. Edge-based infrastructures or edge paradigms have the potential to tackle these challenges by utilizing devices and servers close to users. This thesis aims to present solutions for resource management problems in edge-based infrastructures, considering the QoS requirements of...
A multiscale phase field method for joint segmentation-rigid registration application to motion estimation of human knee joint
, Article Biomedical Engineering - Applications, Basis and Communications ; Volume 23, Issue 6 , 2011 , Pages 445-456 ; 10162372 (ISSN) ; Esfandiarpour, F ; Shakourirad, A ; Farahmand, F ; Sharif University of Technology
2011
Abstract
Image based registration of rigid objects has been frequently addressed in the literature to obtain an object's motion parameters. In this paper, a new approach of joint segmentation-rigid registration, within the variational framework of the phase field approximation of the Mumford-Shah's functional, is proposed. The defined functional consists of two Mumford-Shah equations, extracting the discontinuity set of the reference and target images due to a rigid spatial transformation. Multiscale minimization of the proposed functional after finite element discretization provided a sub-pixel, robust algorithm for edge extraction as well as edge based rigid registration. The implementation...