Parameter Settings for Reconstructing Binary Matrices from Fan-Beam Projections
نویسندگان
چکیده
منابع مشابه
Parameter Settings for Reconstructing Binary Matrices from Fan-Beam Projections
Discrete tomography DT is used for reconstructing special objects consisting of a few types of known homogeneous materials. For example, if we know that the object is made of wood, then the space contains only two materials: wood and air. Such objects can be represented with two-valued functions. The knowledge of the discrete range of the function to be reconstructed can also reduce the number ...
متن کاملReconstruction of binary matrices from fan-beam projections
The problem of the reconstruction of binary matrices from their fan-beam projections is investigated here. A fan-beam projection model is implemented and afterwards employed in systematic experiments to determine the optimal parameter values for a data acquisition and reconstruction algorithm. The fan-beam model, the reconstruction algorithm which uses the optimization method of Simulated Annea...
متن کاملImage reconstruction from fan-beam and cone-beam projections
This thesis addresses the problem of reconstructing static objects in 2D and 3D transmission computed tomography (CT). After reviewing the classical CT reconstruction theory, we discuss and thoroughly evaluate various novel reconstruction methods, two of which are original. Our first original approach is for 2D CT reconstruction from full-scan fan-beam data, i.e., for 2D imaging in the geometry...
متن کاملAn efficient algorithm for reconstructing binary matrices from horizontal and vertical absorbed projections
This paper studies the classical tomographical problem of the reconstruction of a binary matrix from projections in presence of absorption. In particular, we consider two projections along the horizontal and vertical directions and the mathematically interesting case of the absorption coefficient β0 = 1+ √ 5 2 . After proving some theoretical results on the switching components, we furnish a fa...
متن کاملAn Empirical Study of Reconstructing hv-Convex Binary Matrices from Horizontal and Vertical Projections
The reconstruction of hv-convex binary matrices (or equivalently, binary images) from their horizontal and vertical projections is proved to be NPhard. In this paper we take a closer look at the difficulty of the problem. We investigate different heuristic reconstruction algorithms of the class, and compare them from the viewpoint of running-time and reconstruction quality. Using a large set of...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Computing and Information Technology
سال: 2006
ISSN: 1330-1136,1846-3908
DOI: 10.2498/cit.2006.02.02