Results 221 to 230 of about 134,367 (268)
Some of the next articles are maybe not open access.
A theory of inverse light transport
Tenth IEEE International Conference on Computer Vision (ICCV'05) Volume 1, 2005In this paper we consider the problem of computing and removing interreflections in photographs of real scenes. Towards this end, we introduce the problem of inverse light transport - given a photograph of an unknown scene, decompose it into a sum of n-bounce images, where each image records the contribution of light that bounces exactly n times before
Steven M. Seitz +2 more
openaire +1 more source
A Solution Theory of the Mobius Inversion
American Journal of Mathematics, 1946according as Ic is not square-free or is the product of exactly v =v(k) distinct primes (with the understanding that k = 1 belongs to the second case, with v(1) =0). Whether i is or is not square-free, let v(n) denote the number of its distinct prime divisors (e. g., v(12) = 2).
openaire +2 more sources
Inverse scattering inverse source theory
Journal of Mathematical Physics, 1981The inverse scattering inverse source problem associated with the inhomogeneous Helmholtz wave equation, the (special case) Sturm–Liouville (acoustic wave) equation, and the time-independent Schrödinger equation is treated . To this end, the concepts of a reference wave velocity and an associated free reference space Green’s function spectrum are ...
openaire +1 more source
1989
To end this book we shall briefly indicate the application of ill-posed integral equations of the first kind to inverse acoustic scattering problems. Of course, in one single chapter it is impossible to give a comlete picture of inverse scattering. Hence we shall content ourselves with developing some of the main ideas and will leave out much of the ...
openaire +2 more sources
To end this book we shall briefly indicate the application of ill-posed integral equations of the first kind to inverse acoustic scattering problems. Of course, in one single chapter it is impossible to give a comlete picture of inverse scattering. Hence we shall content ourselves with developing some of the main ideas and will leave out much of the ...
openaire +2 more sources
Nuclear Science and Engineering, 1979
Perturbation theory is a collection of methods for determining the effect of a known perturbation on a given physical system. Inverse perturbation theory is defined as a collection of methods for determining the nature of the perturbation itself. One method related to inverse perturbation theory is presented, where calculated and measured parameters in
openaire +1 more source
Perturbation theory is a collection of methods for determining the effect of a known perturbation on a given physical system. Inverse perturbation theory is defined as a collection of methods for determining the nature of the perturbation itself. One method related to inverse perturbation theory is presented, where calculated and measured parameters in
openaire +1 more source
Inverse Scattering, Inverse Field, and Inverse Source Theory
1982Treated is the inverse scattering inverse source problem associated with the inhomogeneous Helmholtz wave equation, the (special case) Sturm-Liouiville (acoustic wave) equation, and the time-independent Schrodinger equation. To this end, the concepts of a reference wave velocity, and an associated free reference space Green’s function spectrum, are ...
openaire +1 more source
2011
This paper discuss a fully 3D nonlinear algorithm that results in a 3D quantitative estimate of breast tissue characteristics and a refraction corrected reflection algorithm (RFCR) that utilizes these estimates. The data are obtained from a specially designed clinical ultrasound breast scanner and processed on the device. We discuss the data collection
J. Wiskin, D. Borup, S. Johnson
openaire +1 more source
This paper discuss a fully 3D nonlinear algorithm that results in a 3D quantitative estimate of breast tissue characteristics and a refraction corrected reflection algorithm (RFCR) that utilizes these estimates. The data are obtained from a specially designed clinical ultrasound breast scanner and processed on the device. We discuss the data collection
J. Wiskin, D. Borup, S. Johnson
openaire +1 more source
Generalised Inverses: Theory and Applications.
Journal of the Royal Statistical Society. Series A (General), 1976V. K. Rohatgi +2 more
openaire +1 more source
1970
Publisher Summary This chapter presents the inverse wobble theory. Some codons may contain two inosines and their translation would lead to less restricted amino acid interchanges involving 4 to 9 amino acids, corresponding to two base changes. The possible amino acid interchanges can be summarized in the form of a modified genetic code.
openaire +1 more source
Publisher Summary This chapter presents the inverse wobble theory. Some codons may contain two inosines and their translation would lead to less restricted amino acid interchanges involving 4 to 9 amino acids, corresponding to two base changes. The possible amino acid interchanges can be summarized in the form of a modified genetic code.
openaire +1 more source

