Evaluation of Pre-Processing, Thresholding and Post-Processing Steps for Very Small Target Detection in Infrared Images

Comparison between performances of Monte Carlo method and method of lines solution of.discrete ordinates method Demirkaya, G; Arinc, F; Selçuk, Nevin; Ayranci, I (2005-06-01) Monte Carlo method was used to predict the incident radiative heat fluxes on the freeboard walls of the METU 0.3 MWt atmospheric bubbling fluidized bed combustor based on the data reported previously. The freeboard was treated as a rectangular enclosure with gray interior walls and gray, absorbing, emitting and isotropically scattering medium. A Monte Carlo solver was developed and the performance of the solver was assessed by comparing its predictions with those of method of lines solution of discrete ordi...
Analysis of thermomechanical cyclic behavior of unidirectional metal matrix composites Çöker, Demirkan; Nicholas, Theodore (1993-01-01) An analytical tool is developed to determine the three-dimensional stress state in a unidirectional composite subjected to axial loading and changes in temperature. A finite difference method is used to analyze a representative volume element of the composite which consists of concentric cylinders. The constituents are assumed to be elastic-plastic materials having temperature dependent properties. An iterative technique using the Prandtl-Reuss flow rule to determine incremental plastic strains is implement...
Comparison of machine learning algorithms on consumer credit classification Koç, Oğuz; Kestel, A. Sevtap.; Department of Financial Mathematics (2019) Like other prediction models, credit scoring is a tool used to evaluate the amount of risk associated with applicants or customers. Scoring models identify clients individually as good or bad applicants. They offer statistical odds or probabilities for prediction either the applicant will be default or not in the future. It is beneficial for banks and credit analysts to measure customers' non-payment risk by statistically tested algorithms in many aspects such as reduction in workload and evaluation time. A...
Analysis Methods for the Investigation of the Seismic Response of Concrete Dams Aldemir, Alper; Yilmazturk, Sema Melek; Yucel, Ali Riza; Binici, Barış; Arıcı, Yalın; Akman, Altug (2015-01-01) The consideratiOn of the dam-foundation-reservoir interaction is extremely important for estimating the seismic response of concrete gravity dams. Moreover, nonlinear analysis may be required for determining the possible risk associated with dams. In order to address these issues, DSI recently published the "Guidelines for Seismic Design of Concrete Dams". Authors who have contributed to the preparation of this document provide a perspective on the seismic safety/design of concrete dams and structural analy...
Investigation of nonplanar perfectly matched absorbers for finite-element mesh truncation Kuzuoğlu, Mustafa (1997-03-01) In this paper, we present a detailed theoretical and numerical investigation of the perfectly matched layer (PML) concept as applied to the problem of mesh truncation in the finite-element method (FEM), We show that it is possible to extend the Cartesian PML concepts involving half-spaces to cylindrical and spherical geometries appropriate for closed boundaries in two and three dimensions by defining lossy anisotropic layers in the relevant coordinate systems, By using the method of separation of variables,...

Citation Formats

O. YARDIMCI and İ. Ulusoy, “Evaluation of Pre-Processing, Thresholding and Post-Processing Steps for Very Small Target Detection in Infrared Images,” 2016, vol. 9844, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34515.