与 «ISOPHOTE»相关的英语书籍
在以下的参考文献中发现
isophote的用法。与
isophote相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
The dashed curve shows the same data but for a galaxy with a shallower intrinsic
surface brightness profile: Figure 4.20 Left: an outer boxy isophote fitted by an
ellipse with geometry of 04 determination shown. Right: a disky isophote and its ...
James Binney, Michael Merrifield,
1998
2
Galaxies in the Universe: An Introduction
A two-dimensional analogue of isophote twisting in a triaxial galaxy: ellipses on a
flat surface (top) are viewed from below left (lower panel). The left ellipse still
points to top right; but the long axis of the rounder center ellipse now heads to ...
Linda S. Sparke, John S. Gallagher, III,
2007
3
Information Processing in Medical Imaging: 12th ...
One useful way is to require, in each point of the image separately, one axis to
coincide with the image gradient direction (called the u>-axis henceforth). The
other axis (v-axis) is then automatically directed tangentially along the isophote.
Alan C.F. Colchester, David J. Hawkes,
1991
4
The Perception of Visual Information
The first of these invariants, K, is the isophote curvature, while the second one, p,
is the curvature of the flow lines generated by the image gradient vector field (
gradient flow-line curvature, in short). The meaning of curvature of a planar curve
...
William R. Hendee, Peter N.T. Wells,
1997
5
Front-End Vision and Multi-Scale Image Analysis: Multi-scale ...
In the figure below the isophote landscape of a blurred T-junction illustrates the
direction of maximum change of k: im = Table [If [y < 64, 0, 1] + If [y < x S& y > 63 ,
2, 1] , {y, 128} , {x, 128}] ; DisplayTogetherArray [ListDensityPlot [im] ...
Bart M. Haar Romeny,
2003
6
Galaxies and How to Observe Them
The ellipse-shaped standard isophote defines the “standard diameters” a25 and
b25. Also used, but a bit larger,are the Holmberg diameters,as defined by the
isophote at the 26.5 mag/arcsec2 level. The integrated magnitude inside the ...
Wolfgang Steinicke, Richard Jakiel,
2007
7
Theory & Applications of Image Analysis: Selected Papers ...
We develop the isophote in each point P as a one-dimensional function
expressing w as a function of v. A Taylor expansion around P = 0 yields: w(v) = w(
Q) + w'(0)v+^w"(Q)v2 + ^w"'(0)v3 + ^w""(Q)v4 + 0(v5) = 5X'(0)»a + ^"'(0)»3 + ^""(O)
t,4 + ...
P. Johansen, S. Olsen,
1992
8
Medical Imaging Systems Technology: Methods in ...
of the isophote that passes through M. The isophote of a given intensity α is
defined as the contour of constant intensity value I0: iso(α)={x/I(x)=α}.Locally,the
isophote iso(I(M)) is a two-dimensional curve as long as ∇I(M) = 0. The following
...
Cornelius T. Leondes,
2005
9
Pattern Recognition: 30th DAGM Symposium Munich, Germany, ...
Top row from left to right: Synthetic signal, monogenic isophote curvature and
classical isophote curvature determined by derivatives. Bottom row from left to
right: Energy, phase and direction. Convolution mask size: 5× 5pixels. domain
without ...
DAGM (Organization). Symposium, Gerhard Rigoll,
2008
10
Ai 2004: Advances In Artificial Intelligence: 17th ...
propagation of the best chromosomes is computed only in the direction
orthogonal to the contour that leads to the isophote. This method creates an
optimal connection of all pairs of disconnected isophote. 4.1 Initial Population
and Cost ...
Geoffrey I. Webb, Xing Huo Yu,
2004