The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Aiming at the problem of original signal reconstruction based on one-dimensional (1D) compressive sensing (CS), a gradient descent sparse adaptive matching pursuit (GDSAMP) algorithm is proposed for 1D sparse signal. By setting the augmented lagrange function, the process of signal reconstruction is transformed to the unconstrained optimization problem. The iteration procedure of algorithm includes...
Muon tomography (MT) is an effective technology that is being developed to non-destructively detect high-Z materials. Because of the statistical randomness of scattering information and the data incompleteness, the widely used Maximum Likelihood (ML) estimation is often instable and accompanied with certain level of noise. In this paper, we propose a Maximum a Posteriori (MAP) algorithm with an edge-preserving...
Cosmic ray muon tomography aims to probe the high-Z materials and image them employing several image reconstruction algorithms. Based on multiple Coulomb scattering and Bayesian theory, the most probable trajectory (MPT) of muon in the materials can be analytically extracted with the known incident and scattering trajectories. A modified algorithm based on this more realistic MPT has been developed...
Cosmic-ray muon radiography is an advanced technology to non-destructively detect objects which may contain high-Z materials. Based on the imaging system in Tsinghua University, we concern mainly about the muon radiography for small size objects within reasonable muon collection time. In this paper, we propose the imaging performance analysis standards of muon radiography, which include the spatial...
Muon tomography with cosmic ray muon is a novel technology for high-Z material detection. Preliminary research on performance evaluation method and models for muon tomography is introduced. Cube model and TUCCI model are introduced to evaluate the material discrimination capability and detection capability of high-Z material hidden in cargo container, line-pair model and hole model are introduced...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.