Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Hiram E. Hart"'
Autor:
Hiram E. Hart
Publikováno v:
Annals of the New York Academy of Sciences. 88:486-497
Autor:
Hiram E. Hart, Alan H. Schoenfeld
Publikováno v:
Applications of Digital Image Processing XII.
A new image processing technique has been developed which uses an operational eigenvector associated with the null eigenvalue (e.i.o) together with supplementary information to limit non-uniqueness associated with standard methods. A field of e.i.o.
Autor:
Hiram E. Hart, Ki-Chuen Chak
Publikováno v:
Bulletin of Mathematical Biology. 42:37-56
The roles of the concentrations of the three interacting constituents in the aggregation process (antibodies, antigens and particulates) are analyzed in detail. It is shown that the basic equation derived in Part I is consistent over a broad range of
Autor:
Hiram E. Hart, Stephen Rudin
Publikováno v:
IEEE Transactions on Biomedical Engineering. :169-177
A twin-probe high-resolution focusing collimator coincidence scanning system has been developed which can tomographically image multimillimeter structures. The three-dimensional detection and imaging capabilities, the related off-focal suppression, a
Autor:
Hiram E. Hart, Z. Liang
Publikováno v:
Bulletin of Mathematical Biology. 49:75-91
Bayesian image processing formalisms which incorporatea priori information about valued-uncorrelated and valued-correlated (patterned) source distributions are introduced and the corresponding iterative algorithms are derived using the EM technique.
Autor:
Hiram E. Hart, Ki-Chuen Chak
Publikováno v:
Bulletin of Mathematical Biology. 42:17-36
A theory of antigen-antibody induced particulate aggregation is developed by investigating the stability of model systems of particles. Conditions for the formation of large aggregates are derived by imposing the requirement that at equilibrium a sta
Autor:
Zhengrong Liang, Hiram E. Hart
Publikováno v:
IEEE Transactions on Medical Imaging. 6:201-208
A Bayesian image processing (BIP) formalism which incorporates a priori amplitude and spatial probability density information was applied to two-dimensional source fields. For valid, moderately restrictive a priori information, strikingly improved re
Publikováno v:
IEEE Transactions on Biomedical Engineering. :186-193
A brief description of the standard rotating tomographic collimator and a new magnifying tomographic collimator is given. The geometry of the apparatus is quantitatively described and the modulation transfer characteristics for the standard apparatus
Autor:
Hiram E. Hart
Publikováno v:
Transactions of the New York Academy of Sciences. 30:580-599
High resolution radioisotope scanning systems have been restricted in general to: (1) focusing collimators, and (2) positron coincidence scanning. If the nuclear decay process includes the nearly simultaneous emission of the gammas in cascade with th
Autor:
C. A. Weller, Hiram E. Hart
Publikováno v:
Transactions of the New York Academy of Sciences. 26:64-74