Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Dennis M. Goodman"'
Autor:
B. Samuel Tanenbaum, Boris Majaron, J. Stuart Nelson, Thomas E. Milner, Sergey A. Telenkov, Dennis M. Goodman, Wim Verkruysse
Publikováno v:
Physics in Medicine and Biology. 45:1913-1922
When pulsed photothermal radiometry (PPTR) is used for depth profiling of hypervascular lesions in human skin, melanin absorption also heats the most superficial skin layer (epidermis). Determination of lesion depth may be difficult when it lies clos
Publikováno v:
Telenkov, SA; Tanenbaum, BS; Goodman, DM; Nelson, JS; & Milner, TE. (1999). In vivo infrared tomographic imaging of laser-heated blood vessels. IEEE Journal on Selected Topics in Quantum Electronics, 5(4), 1193-1199. doi: 10.1109/2944.796346. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/0jd8d1c0
We demonstrate a method for infrared tomographic imaging of the initial three-dimensional (3-D) temperature increase of in vivo blood vessels following pulsed laser exposure. Using a time-sequence of infrared images recorded by a fast focal plane arr
Publikováno v:
Nelson, JS; Milner, TE; Tanenbaum, BS; Goodman, DM; & Van Gemert, MJC. (1996). Infra-red tomography of port-wine-stain blood vessels in human skin. Lasers in Medical Science, 11(3), 199-204. doi: 10.1007/BF02156765. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/0g22q74z
Specifying the distribution of laser energy within a tissue is the first step towards understanding and capitalizing on a variety of laser-tissue interactions. Whether photothermal, photochemical or photomechanical in nature, laser-tissue interaction
Autor:
Bahman Anvari, Thomas E. Milner, Lars O. Svaasand, B. Samuel Tanenbaum, J. Stuart Nelson, Dennis M. Goodman
Publikováno v:
Physics in Medicine and Biology. 41:31-44
We describe a non-contact method using infrared radiometry to determine lateral physical dimensions of laser heated subsurface chromophores in biological materials. An imaging equation is derived that relates measured radiometric temperature change t
Publikováno v:
Applied optics. 31(29)
Results are presented from a series of experiments in which the U.S. Air Force Maui Optical Station’s 1.6-m telescope and a bare CCD speckle camera system were used to image satellites at distances of up to 1000 km. A brief overview of the image re
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 29:718-726
A method has been developed to reduce large two-dimensional images to significantly smaller feature lists. These feature lists overcome the problem of storing and manipulating large amounts of data. A new artificial neural network using conjugate gra
Publikováno v:
International Journal of Neural Systems. :291-301
In many applications, the number of interconnects or weights in a neural network is so large that the learning time for the conventional backpropagation algorithm can become excessively long. Numerical optimization theory offers a rich and robust set
Autor:
Jeffrey B. Chandler, Harry E. Martz, D M Slone, Ernie Urquidez, Alexis E. Schach von Wittenau, Anne J. Sunwoo, Dennis M. Goodman, Jessie Jackson, Thaddeus J. Orzechowski, Gurcharn S. Dhillon, Gary E. Steinhour, Charles F. Cook, Martin R. de Haven, John D. Molitoris, Maurice B. Aufderheide
Publikováno v:
AIP Conference Proceedings.
The failure of a steel pipe subjected to shock loading was observed using x ray imaging. We describe and analyze the x ray images in detail. We see radiographic evidence that most of the fractures were due to shear rather than brittle failure. We als
Publikováno v:
Physics in medicine and biology. 46(2)
We demonstrate the application of an infrared (IR) imaging technique for non-contact determination of thermal diffusivity in biological materials. The proposed method utilizes pulsed laser excitation to produce an initial three-dimensional temperatur
Autor:
Jessie Jackson, Harry E. Martz, J Hall, D M Slone, Alexis E. Schach von Wittenau, Maurice B. Aufderheide, Clint M. Logan, Dennis M. Goodman
Publikováno v:
AIP Conference Proceedings.
We have developed a new tomography code, HADES-CCG. This code uses HADES, a radiographic simulation code, to perform forward- and back-projection and is coupled to a Constrained Conjugate Gradient (CCG) optimizer. An iterative solution to the reconst