By Peter W. Hawkes

ISBN-10: 0123742188

ISBN-13: 9780123742186

Advances in Imaging and Electron Physics merges long-running serials-Advances in Electronics and Electron Physics and Advances in Optical and Electron Microscopy. This sequence gains prolonged articles at the physics of electron units (especially semiconductor devices), particle optics at low and high energies, microlithography, picture technology and electronic picture processing, electromagnetic wave propagation, electron microscopy, and the computing equipment utilized in a majority of these domain names.
An very important characteristic of those Advances is that the themes are written in any such means that they are often understood via readers from different specialities.

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Advances in Imaging and Electron Physics merges long-running serials-Advances in Electronics and Electron Physics and Advances in Optical and Electron Microscopy. This sequence positive factors prolonged articles at the physics of electron units (especially semiconductor devices), particle optics at low and high energies, microlithography, photograph technology and electronic photo processing, electromagnetic wave propagation, electron microscopy, and the computing equipment utilized in a lot of these domain names.

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Sample text

Since σ corresponds to the gradient of the filter line, it can be computed from the last two equations by σ = vP (γ2 ) − vP (γ1 ) uP (γ2 ) − uP (γ1 ) (65) for arbitrary but different γ1 and γ2 . Parameter v0 corresponds to the vP coordinate of the κ-line at uP = 0. It is given by v0 = vP (γ0 ), tan γ0 = − b·u , e·u (66) where γ0 is defined by the condition uP (γ0 ) = 0. So far we have considered the case that vectors b and e define the filtering plane. Based on this, we have computed the parameters in Eq.

Seen from that point (the first image in Figure 34), the projection of the Radon plane (dotted line) has two IPs with the upper Pi-window boundary. Moreover, these two IPs belong to the Pi segment, since the intersection of the Pi-line with the Pi-window boundary is farther to the left. In summary, from the first image in Figure 34 it can be deduced that the indicated Radon plane is a 3-plane with two further IPs in the future. Similarly, in the second image of Figure 34 the dotted line has a gradient larger than the gradient of L1 .

Figure 28 considers the two different cases for the choice of CBP (x). The backprojection segment is drawn bold, and the projection of the Pi-line is dashed. , on the segments drawn bold in Figure 28. This results in the filter-line sets depicted in Figure 29 for the two cases. Obviously, these filter lines are tangential on the projected circle, and the point of tangency is either right or left of the point onto which x is projected. The weights must be set such that μν = 1 for the case shown in the left image of Figure 29, while μν = −1 for the case shown in the right image of Figure 29.

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Advances in Imaging and Electron Physics, Vol. 151 by Peter W. Hawkes


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