منابع مشابه
On Projection Matrices
Projection matrices from projective spaces P to P have long been used in multiple-view geometry to model the perspective projection created by the pin-hole camera. In this work we introduce higher-dimensional mappings P ! P, k = 4; 5; 6 for the representation of various applications in which the world we view is no longer rigid. We also describe the multi-view constraints from these new project...
متن کاملPatterns and rules for sensitivity and elasticity in population projection matrices.
Sensitivity and elasticity analysis of population projection matrices (PPMs) are established tools in the analysis of structured populations, allowing comparison of the contributions made by different demographic rates to population growth. In some commonly used structures of PPM, however, there are mathematically inevitable patterns in the relative sensitivity and elasticity of certain demogra...
متن کاملScenario Analysis in Population Projection
This paper focuses on the approach to population projections that has been labeled scenario analysis. It looks at the original meaning of "scenario" and then discusses its appropriate usage in population projections with respect to several criteria, especially that of consistency of assumptions. Next, the paper describes the practical considerations and actual experiences in an IIASA effort to ...
متن کاملMultiresolution approach based on projection matrices.
Active triangulation measurement systems with a rigid geometric configuration are inappropriate for scanning large objects with low measuring tolerances. The reason is that the ratio between the depth recovery error and the lateral extension is a constant that depends on the geometric setup. As a consequence, measuring large areas with low depth recovery error requires the use of multiresolutio...
متن کاملField identifications in coset conformal theories from projection matrices.
We demonstrate the usefulness of projection matrices for finite subalgebras h c 3 and their affine counterparts h c i in finding field identifications (and selection rules) in coset conformal field theories. Submitted to Phys. Lett. B. * Work supported by the U.S. Department of Energy under Contract DE-AC0376SF00515. Address after September 1, 1989: Newman Laboratory of Nuclear Studies, Cornell...
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ژورنال
عنوان ژورنال: Trends in Ecology & Evolution
سال: 1988
ISSN: 0169-5347
DOI: 10.1016/0169-5347(88)90060-2