Search Results - "Dhawan, A.P."

Monte Carlo simulation of light-tissue interaction: three-dimensional simulation for trans-illumination-based imaging of skin lesions by Patwardhan, S.V., Dhawan, A.P., Relue, P.A.

“…Three-dimensional, voxel-based, and wavelength-dependent skin lesion models are developed and simulated using Monte Carlo techniques. The optical geometry of…”
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Radial-basis-function based classification of mammographic microcalcifications using texture features by Dhawan, A.P., Chitre, Y., Bonasso, C., Wheeler, K.

“…Mammography has been established as the only effective and viable technique to detect breast cancer especially in the case of nonpalpable and minimal tumors…”
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Analysis of mammographic microcalcifications using gray-level image structure features by Dhawan, A.P., Chitre, Y., Kaiser-Bonasso, C.

“…At present, mammography associated with clinical breast examination and breast self-examination is the only effective and viable method for mass breast…”
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SHAPE-BASED RECONSTRUCTION OF SKIN LESION FOR MULTISPECTRAL NEVOSCOPE USING GENETIC ALGORITHM OPTIMIZATION by Song Wang, Dhawan, A.P.

“…Multi-spectral optical nevoscope is aimed at diagnosing malignant melanoma non-invasively by extracting its two key signatures: spatial distributions of…”
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Analysis of multi-modal optical images of skin-lesions for skin-cancer detection and characterization by Dhawan, A.P., Mullani, N., Patwardhan, S.

“…Optical imaging of skin-lesions for early detection and management of skin-cancers has been of significant interest in dermatology. Though there are optical…”
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Wavelet based multiresolution expectation maximization image reconstruction algorithm for positron emission tomography by Raheja, A., Dhawan, A.P.

“…Maximum Likelihood (ML) estimation based Expectation Maximization (EM) [IEEE Trans Med Imag, MI-1 (2) (1982) 113] reconstruction algorithm has shown to provide…”
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Multi-level adaptive segmentation of multi-parameter MR brain images by Zavaljevski, A., Dhawan, A.P., Gaskil, M., Ball, W., Johnson, J.D.

“…MR brain image segmentation into several tissue classes is of significant interest to visualize and quantify individual anatomical structures. Traditionally,…”
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Multispectral optical imaging of skin-lesions for detection of malignant melanomas by Dhawan, A.P., D'Alessandro, B., Patwardhan, S., Mullani, N.

“…Optical imaging of skin-lesions for early detection and management of the most fatal skin-cancer malignant melanoma is of significant interest in mass…”
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Multiresolution expectation maximization reconstruction algorithm for positron emission tomography using wavelet processing by Raheja, A., Doniere, T.F., Dhawan, A.P.

“…The expectation maximization (EM) algorithm and its derivatives have been applied to the problem of image reconstruction in positron emission tomography (PET)…”
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Three-dimensional anatomical model-based segmentation of MR brain images through principal axes registration by Arata, L.K., Dhawan, A.P., Broderick, J.P., Gaskil-Shipley, M.F., Levy, A.V., Volkow, N.D.

“…Model-based segmentation and analysis of brain images depends on anatomical knowledge which may be derived from conventional atlases. Classical anatomical…”
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Multi-spectral imaging and analysis for classification of melanoma by Patwardhan, S.V., Dhawan, A.P.

“…Wavelengths in the visible spectrum are selected for multi-spectral trans-illumination imaging of the skin lesions using the Nevoscope. The multi-spectral…”
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Iterative principal axes registration method for analysis of MR-PET brain images by Dhawan, A.P., Arata, L.K., Levy, A.V., Mantil, J.

“…Computerized automatic registration of MR-PET images of the brain is of significant interest for multimodality brain image analysis. Here, the authors discuss…”
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Multi-parameter segmentation of brain images by Dhawan, A.P., D'Alessandro, B.

“…Recent advances in multi-parameter MR brain imaging has enabled multi-class tissue characterization for better quantitative analysis and understanding brain…”
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Multilevel computed hemodynamic parameter maps from dynamic perfusion MRI by Zavaljevski, A., Holland, S.K., Dhawan, A.P., Dunn, R.S., Ball, W.S.

“…A rapid time-series of T2*-weighted magnetic resonance (MR) images acquired during the first pass of a bolus injection of a paramagnetic MR contrast agent…”
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A knowledge-based multi-grid ML reconstruction algorithm for positron emission tomography by Dhawan, A.P., Ranganath, M.V.

“…The problem of reconstruction in positron emission tomography (PET) is basically estimating the number of photon pairs emitted from the source. Using the…”
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Wavelet based multi-resolution algorithm for detection of mammographic microcalcification by Shubhachint, T., Dhawan, A.P.

“…The wavelet based texture analysis method is used to detect and segment microcalcification regions in mammographic images. Wavelet decomposition is used for…”
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Wavelet based multiresolution expectation maximization reconstruction algorithm for positron emission tomography (PET) by Raheja, A., Dhawan, A.P.

“…The Maximum Likelihood estimation based Expectation Maximization (EM) reconstruction algorithm has been shown to provide good quality reconstruction for PET…”
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Multiresolution expectation maximization reconstruction algorithm for positron emission tomography using wavelet processing by Raheja, A., Dhawan, A.P.

“…A number of algorithms based on estimation theory have been developed for image reconstruction in Positron Emission Tomography (PET). Maximum Likelihood…”
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A multigrid expectation maximization reconstruction algorithm for positron emission tomography by Ranganath, M.V., Dhawan, A.P., Mullani, N.

“…The problem of reconstruction in positron emission tomography (PET) is basically estimating the number of photon pairs emitted from the source. Using the…”
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Planar visual fusion scintigraphy by Puthiamadathil, J.M., Zuckier, L.S., Dhawan, A.P.

“…Planar scintigraphy, while providing useful information about the distribution of a particular radiopharmaceutical being imaged, often does not provide…”
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