منابع مشابه
Determining Object Attitude from Extended Gaussian Images
The Extended Gaussian Image (EGI) of an object records the variation of surface area with surface orientation, uniquely representing convex objects. The inversion problem for polyhedra (from an EGI to a description in terms of vertices and faces) has been solved, by an iterative algorithm [Little, 1983]. The algorithm depends upon the mixed volume, a geometric construction linking the areas and...
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Mutual information has been used for matching and registering 3D models to 2D images. However, in Viola’s original framework [1], surface albedo variance is assumed to be minimal when measuring similarity between 3D models and 2D image data using mutual information. In reality, most objects have textured surfaces with different albedo values across their surfaces, and direct application of this...
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This paper attempts to undertake the study of Restored Gaussian Blurred Images. by using four types of techniques of deblurring image as Wiener filter, Regularized filter ,Lucy Richardson deconvlutin algorithm and Blind deconvlution algorithm with an information of the Point Spread Function (PSF) corrupted blurred image with Different values of Size and Alfa and then corrupted by Gaussian noise...
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Estimating an accurate velocity model is crucial for seismic imaging to obtain a good understanding of the subsurface structure. The objective of this thesis is to investigate methods of velocity analysis by optimizing seismic images. A conventional seismic image is obtained by zero-lag crosscorrelation of wavefields extrapolated from a source wavelet and recorded data on the surface using a ve...
متن کاملExtended Gaussian wave packet dynamics
Wave packet dynamics has exposed interesting new phenomena in several fields. In femto-chemistry [1,2] we are now able to time-resolve chemical processes and also observe effects such as the breakup and revival of wave packets [3]. In atom optics wave packets are used to model matter waves [4] and electron wave packets are seen in the dynamics of Rydberg atoms [5]. The numerical modelling of wa...
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ژورنال
عنوان ژورنال: Proceedings of the IEEE
سال: 1984
ISSN: 0018-9219
DOI: 10.1109/proc.1984.13073