Fig. 3 Top: Head translation (left) and rotation (center) for the experiment with EPI based motion correction. Corresponding image reconstruction (right) shows successful slice tracking using the proposed method. Bottom: Head translation (left) and rotation (center) in the uncorrected case. The corresponding image reconstructions (right) show three different slices due to unaccounted head motio...

In this paper, we propose an iterative reconstruction algorithm which uses available information from one dataset collected using one modality to increase the resolution and signal-to-noise ratio of one collected by another modality. The method operates on the structural information only which increases its suitability across various applications. Consequently, the main aim of this method is to...

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TAMPERE UNIVERSITY OF TECHNOLOGY Master’s Degree Programme in Information Technology MÄÄTTÄ, JONI-MATTI: Design and Implementation of a Generic Image Reconstruction Pipeline for Camera Phones Master of Science Thesis, 43 pages, 0 Appendix pages May 2013 Major: Computer and processor engineering Examiners: Prof. Timo D. Hämäläinen, Dr. Tech. Jarno Vanne

We describe an approach to fast iterative reconstruction from fully three-dimensional (3D) PET data using a network of PentiumIII PCs configured as a Beowulf cluster. To facilitate the use of this system, we have developed a browser-based interface using Java. The system compresses PET data on the user's machine, sends these data over a network, and instructs the PC cluster to reconstruct the i...

Shinya Nozaki Corresponding , Yen-Wei Chen, Rumiko Azuma, Zensho Nakao and Yoshinori Namihira *1 Trans-disciplinary Organization for Subtropical Island Studies(TRO-SIS), University of the Ryukyus, Okinawa 903-0213, Japan. *2 College of Information Science and Engineering, Ritsumeikan University, Shiga 525-8577, Japan. *3 Department of Electrical and Electronics Engineering, University of the Ry...

Tomography deals with the reconstruction of images from their projections. In this paper we focus on tomographic reconstruction of binary images (i.e., black-and-white) that do not have an intrinsic lattice structure from a small number of projections. We describe how the reconstruction problem from only two projections can be formulated as a network flow problem in a graph, which can be solved...

Algebraic Reconstruction Technique (ART) is an iterative algorithm to obtain reconstruction from projections in a finite number of iterations. The present paper discuses the convergence achieved in small number of iteration even when projection data is available in only four directions. Keywords-ART, Image Reconstruction, Convergence, Projections, Computed Tomography