学术活动

埃及艾因夏姆斯大学Ahmed Elrafei副教授讲座

讲座题目:Quantum based framework for image processing

主讲人:Ahmed Elrafei (埃及艾因夏姆斯大学副教授)

讲座时间:2018年7月9日15:00

讲座地点:信息楼205

 

讲座摘要:

Many algorithms used for image processing have been inspired from other disciplines and have proven to be of high efficiency. The theory of quantum mechanics contains many powerful aspects such asthe probabilistic nature of the quantum particle, the state space, and the superposition principal. In this talk, we provide a framework for processing images that is based on quantum mechanics. This framework enables the incorporation of the quantum theory along with its aspects in the field of image processing. The basic idea is to associate each pixel with a quantum system, where each pixel starts with an initial state and then evolves to any possible state. The force governing the evolutionin this case is computed from the local image features and the corresponding Hamiltonian is designedusing a proposed supervised learning method. Thus, the image features are responsible for determining the final state of the pixel. The system is allowed to evolve and a measurement step is performed to obtain the final state. By assigning each state to a certain class, we can use this approach to classify the image pixels or to segment images. This framework is used to develop an algorithm to segment general images. Moreover, it is also applied on a medical problem which is segmenting the vessel tree in retinal images.

 

主讲人简介:

March 2012 : PhD. in Computer Science – Pattern Recognition Lab, Department of Computer Science,

Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany

Thesis Title: “Diffusion Tensor Imaging Analysis of the Visual Pathway in Glaucoma”.

Grade: Distinction

July 2006 : M.Sc. in Engineering Mathematics from Engineering Physics and Mathematics Dept. – Faculty

of Engineering, Ain Shams University, Cairo, Egypt

Completed all courses with GPA = 4

Thesis Title: “Wavelets and Their Applications to Image Processing”.

March 2002 : Qualifying year in Mathematics (consists of 10 subjects) – Engineering Physics and

Mathematics Dept. – Faculty of Engineering, Ain Shams University, Cairo, Egypt

Distinction in nine subjects and very good in one subject. (GPA = 3.9)

June 2000 : B.Sc. in Electrical and Communications Engineering – Faculty of Engineering, Ain Shams

University, Cairo, Egypt

Distinction with degree of honor (cumulative grade of 86.86 %)

Ranked 9th out of 217 students (Top 5% students)

Graduation Project Title: “Static Characterization of Deep Sub-micron Devices, Parameter

Extraction of MOSFET Models”.

Project Grade: Distinction