This paper seeks to extend the Fourier space properties of the discrete Radon transform, R(t,m), proposed by Matus and Flusser in [1], to expanded discrete projections, R(k,胃), where the wrapping of rays is removed. This expanded mode yields projections more akin to the continuous space...
Which process takes place on a surface depends on the following factors: (1) wavelength of the radiation, (2) the characteristics of the incident radiation, (3) angle at which the radiation intersects the surface, and (4) composition and physical properties of the surface. After interaction ...
The flow speed jvj and the properties of the flowing objects (radius and effec- tive diffusion coefficient) are always kept as free parameters in the CCFs fit, whereas the optical and scan parameters, v, vz, (J–I), dx and tline are treated as known quantities. The angle c is fixed ...
definitions of continuity and amplitude generally do not have strict definitions, and are based on rock property calibration or environment of deposition interpretations. Assuming a relationship between seismic character and physical properties can be demonstrated, seismic facies volumes can then be used to...
Finite groups represent digital images; the Finite Radon Transform (FRAT) is then applied. To overcome the periodization effect of a finite transform, Do and Vetterli [1] introduce a novel ordering of the FRAT coefficients. This paper introduced a detailed mathematical analysis...
A conformal mapping of continuous functions and a quasi-conformal mapping of piecewise continuous functions are considered. the specificity of the application of conformal mappings in tomographic methods and algorithms based on the Radon transform is analysed. It is proposed to use discrete Fourier ...
The usage of the N-FRAT and FT in the proposed system led to an increase in the orthogonality between the subcarriers due to the application of IFFT in the N-FRAT, which was added to improve the orthogonality and time鈥揻requency localization properties of the FT. Furthermore the proposed...
In the first phase a crop field database was created by extracting static parcel boundaries from the digital topographic map and by adding dynamic crop boundaries using on-screen digitizing. In the next phase the crop type was determined from the spectral and phenological properties of each field...
Keystone transform (KT)Radon local mapping sparse-modified Lv’s distribution (RLMSMLVD)This paper focuses on the range migration (RM) and Doppler frequency migration (DFM) problems, which are commonly faced in radar maneuvering target detection during the long-time integration. Considering the ...