Parallelizing a Defect Detection and Categorization Application \Lambda (2008)
Leonid Glimcher, Gagan Agrawal, Sameep Mehta, Ruoming Jin, Raghu Machiraju
Abstract This paper presents a case study in creating a parallel and scalable implementation of a scientific data analysis application. We focus on a defect detection and categorization application...
A Comparison Of Normal Estimation Schemes (2008)
Torsten Merf, Raghu Machiraju, Klaus Mueller, Roni Yagell
Tire task of reconstructing the derivative of a discrete fin&on is essential for its shading and rendering as well as being widely used in image processing and analysis. We survey the possible...
Kishore R. Mosaliganti, Firdaus Janoos, Xiaoyin Xu, Raghu Machiraju, Kun Huang
Abstract — Recent research has revealed that morphological characteristics of neuronal structure are closely related to normal neural functions such as learning and memory. Neuronal dendrites and...
Spatial domain wavelet design for feature preservation in computational data sets (2008)
Gheorghe Craciun, Ming Jiang, David Thompson, Raghu Machiraju
Abstract—High-fidelity wavelet transforms can facilitate visualization and analysis of large scientific data sets. However, it is important that salient characteristics of the original features be...
Automated Quantification of Colony Growth in Clonogenic Assays (2008)
Kishore Mosaliganti, Jian Chen, Firdaus Janoos, Raghu Machiraju, Weiming Xia, Xiaoyin Xu, ...
Abstract — The need to determine the behavior of cell colonies in cultures often arises in controlled biological experiments. The deployment of microassays involving multiple wells allows the...
Ming Jiang, David Thompson, Raghu Machiraju, Zhenmin Peng, Wan-chiu Li, Bruno Vallet, ...
the essential information that should be focused on
Chapter 1 EVITA- EFFICIENT VISUALIZATION AND INTERROGATION OF TERA-SCALE DATA (2008)
Raghu Machiraju, James E. Fowler, David Thompson, Bharat Soni
Abstract Large-scale computational simulations of physical phenomena produce data of unprecedented size (terabyte and petabyte range). Unfortunately, development of appropriate data management and...
RANKED REPRESENTATION OF VECTOR (2008)
Balakrishna Nakshatrala, David Thompson, Raghu Machiraju
Abstract Browsing and visualizing large datasets is often a tedious chore. Locating features, especially in a wavelet transform domain is usually offered as a possible solution. Wavelet transforms...
Improvements to Response-Surface Based Vehicle Design using a Feature-Centric Approach (2008)
David Thompson, Srinivasan Parthasarathy, Raghu Machiraju, Scott Lawrence
Abstract. In this paper, we present our vision for a framework to facilitate computationally-based aerospace vehicle design by improving the quality of the response surfaces that can be developed for...
Modeling Rough Surfaces (2008)
Yootai Kim, Raghu Machiraju, David Thompson
Many surfaces in nature are rough. A rough surface can be defined as a surface that has a fractal dimension. In fact, one measure of roughness is the fractal dimension [1, 14]. Rough surfaces are...
ABSTRACT Generalized Clustering Methods for Multivariate Data (2008)
Kishore R. Mosaliganti, Tony Pan, Dan Cowden, Raghu Machiraju, Joel Saltz
Efficient analysis (including segmentation and classification) of multivariate data is an inherently complex task in which features occur as salient members of clusters in a multi-dimensional data...
Submitted to Visualization’98 A Numerical Imaging Approach to Comparative Visualization (2007)
John E. West, John E. West, Raghu Machiraju, Raghu Machiraju
to
Lance C. Burton, Lance C. Burton, Raghu Machiraju, Raghu Machiraju, Donna S. Reese, Donna S. Reese
Views, opinions, and/or findings contained in this report are those of the author(s) and should not be construed as an official Department of Defense Position, policy, or decision unless so...
Work funded by the DoD High Performance Computing (2007)
Raghu Machiraju, Zhifan Zhu, Bryan Fry, Robert Moorhead
other official documentation.
Research Problems and Solutions for Extremely Large Datasets (2007)
Raghu Machiraju, Dr. Raghu Machiraju
p new modes of visualization for interpretation and understanding of large scale simulations and experiments" [Smith98]. There is a need for visual analysis systems which deal with the spate of...
Collaborative R01: Microscopy toolkit using Slicer and EMSegmenter (2007)
Machiraju, Raghu, Pieper, Steve, Davis, Brad, Aylward, Stephen
May 17, 2007 - Collaborative R01 from Ohio State University with subcontracts to Isomics and Kitware.
Rb is critical in a mammalian tissue stem cell population (2007)
Wenzel, Pamela L., Wu, Lizhao, De Bruin, Alain, Chong, Jean-Leon, Chen, Wen-Yi, Dureska, Geoffrey, ...
The inactivation of the retinoblastoma (Rb) tumor suppressor gene in mice results in ectopic proliferation, apoptosis, and impaired differentiation in extraembryonic, neural, and erythroid lineages,...
Volumetric Density Capture From a Single Image (2006)
Fuchs, Christian, Chen, Tongbo, Goesele, Michael, Theisel, Holger, Seidel, Hans-Peter, Möller, Torsten, ...
Impact of motion correction on the quantitative analysis of DCE-MR Images (2005)
Mosaliganti, Kishore, Jia, Guang, Heverhagen, Johannes, Machiraju, Raghu, Saltz, Joel, Knopp, Michael
Dynamic magnetic resonance imaging (DCE-MRI) carried out with contrast media such as Gd-chelate complex (Gd-DTPA) allows the non-invasive assessment of microcirculatory characteristics of malignant...
ITK-based Registration of Large Images from Light Microscopy: A Biomedical Application (2005)
Mosaliganti, Kishore, Pan, Tony, Machiraju, Raghu, Huang, Kun, Saltz, Joel
Inactivation of the retinoblastoma gene in mouse embryos results in morphological changes in the placenta, which has been shown to affect fetal survivability. The construction of a 3D virtual...
Mitsubishi Electric Research Laboratories (2005)
Http Www Merl, Jinho Lee, Raghu Machiraju, Hanspeter Pfister, Baback Moghaddam
this paper we present a novel framework that acquires the 3D shape, texture, pose and illumination of a face from a single photograph. Additionally, we show how we can recreate a face under varying...
A Bilinear Illumination Model for Robust Face Recognition (2005)
Jinho Lee, Jinho Lee, Baback Moghaddam, Baback Moghaddam, Hanspeter Pfister, Hanspeter Pfister, ...
this paper belongs to this latter camp, yet has key differences and presents both computational and modeling advantages not shared by other techniques. For example, it easily surpasses the...
A bilinear illumination model for robust face recognition (2005)
Jinho Lee, Jinho Lee, Baback Moghaddam, Baback Moghaddam, Hanspeter Pfister, Hanspeter Pfister, ...
We present a technique to generate an illumination subspace for arbitrary 3D faces based on the statistics of measured illuminations under variable lighting conditions from many subjects. A bilinear...
Dynamic classification of defect structures in molecular dynamics simulation data (2005)
Sameep Mehta, Steve Barr, Alex Choy, Hui Yang, Srinivasan Parthasarathy, Raghu Machiraju, ...
In this application paper we explore techniques to classify anomalous structures (defects) in data generated from Molecular Dynamics (MD) simulations of Silicon (Si) atom systems. These systems are...
Finding Optimal Views for 3D Face Shape Modeling (2004)
Jinho Lee, Baback Moghaddam, Hanspeter Pfister, Raghu Machiraju
A fundamental problem in multi-view 3D face modeling is the determination of the set of optimal views required for accurate 3D shape estimation for a generic face. There is no analytical solution to...
Finding Optimal Views for 3D Face Shape Modeling (2004)
Jinho Lee, Jinho Lee, Baback Moghaddam, Baback Moghaddam, Hanspeter Pfister, Hanspeter Pfister, ...
A fundamental problem in multi-view 3D face modeling is the determination of the set of optimal views (poses) required for accurate 3D shape estimation of a generic face. There is no analytical...
Modelbased 3D face capture with shape-from-silhouettes (2003)
Baback Moghaddam, Jinho Lee, Hanspeter Pfister, Raghu Machiraju
We present a method for 3D face acquisition using a set or sequence of 2D binary silhouettes. Since silhouette images depend only on the shape and pose of an object, they are immune to lighting...
Feature mining paradigms for scientific data (2003)
Ming Jiang, Tat-sang Choy, Sameep Mehta, Matt Coatney, Steve Barr, Kaden Hazzard, ...
Silhouette-Based 3D Face Shape Recovery (2003)
J. Lee, B. Moghaddam, H. Pfister, R. Machiraju, Jinho Lee, Baback Moghaddam, ...
In this paper we present a novel method to obtain the 3D shape of an arbitrary human face using a sequence of silhouette images as input. Our face model is a linear combination of eigenheads, which...
Silhouette-based 3d face shape recovery (2003)
Jinho Lee, Baback Moghaddam, Hanspeter Pfister, Raghu Machiraju
The creation of realistic 3D face models is still a fundamental problem in computer graphics. In this paper we present a novel method to obtain the 3D shape of an arbitrary human face using a...
Feature mining paradigms for scientific data (2003)
Ming Jiang, Tat-sang Choy, Sameep Mehta, Matt Coatney, Steve Barr, Kaden Hazzard, ...
Silhouette-Based 3D Face Shape Recovery (2003)
Jinho Lee Baback, Jinho Lee, Baback Moghaddam, Hanspeter Pfister, Raghu Machiraju
The creation of realistic 3D face models is still a fundamental problem in computer graphics. In this paper we present a novel method to obtain the 3D shape of an arbitrary human face using a...
Mitsubishi Electric Research Laboratories (2003)
Http Www Merl, Baback Moghaddam, Baback Moghaddam, Jinho Lee, Jinho Lee, Hanspeter Pfister, ...
this paper, we present two systems that recover 3D shape of a human face (and consequently its 2D texture-map as well) from a sequence of silhouette images using an underlying model-based 3D face...
Feature mining paradigms for scientific data (2003)
Ming Jiang, Tat-sang Choy, Sameep Mehta, Matt Coatney, Steve Barr, Kaden Hazzard, ...
Geometric Verification of Swirling Features in Flow Fields (2002)
Ming Jiang Raghu, Ming Jiang, Raghu Machiraju, David Thompson
In this paper, we present a verification algorithm for swirling features in flow fields, based on the geometry of streamlines. The features of interest in this case are vortices. Without a formal...
Decoding of Large Terrains Using a Hardware Rendering Pipeline (2000)
James E. Fowler, Shivaraj Tenginakai, Raghu Machiraju, Robert J. Moorhead
In this paper, we present a simple approach to the quantization of vertex-coordinate values of a very large terrain dataset, allowing both efficient representation and timely rendering of the data....
EVITA: A Prototype System for Efficient Visualization and Interrogation of Terascale Datasets (2000)
Raghu Machiraju, James E. Fowler, David Thompson, Will Schroeder, Bharat Soni
Large-scale computational simulations of physical phenomena produce data of unprecedented size (terabyte and petabyte range). Unfortunately, development of appropriate data management and...
Spatial Domain Filter Design (1999)
Torsten Möller, Raghu Machiraju, Yair Kurzion, Klaus Mueller, Roni Yagel
In this paper, we present both a methodology and a rationale for designing filters based on spatial smoothness and accuracy criteria. Frequency based methods have been used to design function and...
Calculating Distance-To-Silhouette On K-Manifolds (1999)
Paul Finley Brewster, Paul Finley Brewster, David C. Banks, Donald W. Dearholt, A. Wayne Bennett, Raghu Machiraju
tained by approximating the object with a second order approximation. The approximated distance is the distance to the silhouette on the image of the approximating object. The distance can be used to...
Dynamic View-Dependent Partitioning of Grids with Complex Boundaries Track: Applied (1999)
Lance Burton, Raghu Machiraju, Donna S. Reese
this paper, we will confine our attention to the most common deformation, the cavity. Since, by definition, those sections of the surface that belong to the convex hull are unable to "see"...
Structure-significant representation of structured datasets (1998)
Raghu Machiraju, Zhifan Zhu, Bryan Fry, Robert Moorhead, Senior Member
Abstract—Numerical simulation of physical phenomena is now an accepted way of scientific inquiry. However, the field is still evolving, with a profusion of new solution and grid-generation...
Design Of Accurate And Smooth Filters For Function And Derivative Reconstruction (1998)
Torsten Mller Klaus, Klaus Mueller, Yair Kurzion, Raghu Machiraju, Roni Yagel
The correct choice of function and derivative reconstruction filters is paramount to obtaining highly accurate renderings. Most filter choices are limited to a set of commonly used functions, and the...
Design Of Accurate And Smooth Filters For Function And Derivative Reconstruction (1998)
Torsten Möller, Klaus Mueller, Yair Kurzion, Raghu Machiraju, Roni Yagel
The correct choice of function and derivative reconstruction filters is paramount to obtaining highly accurate renderings. Most filter choices are limited to a set of commonly used functions, and the...
Wavelet based Compression and Denoising of Convolution Operators (1998)
Nagamohan Kompella, Raghu Machiraju, Ajitha Choudhary, Anthony Skjellum
In highly computationally intensive fields such as signal processing, image processing, computer graphics and visualization, much of the CPU time is spent in computing various transforms on the...
Structure Significant Representation of Structured Datasets (1998)
Numerical simulation of physical phenomena is now an accepted way of scientific inquiry. However, the field is still evolving with a profusion of new solution and grid generation techniques being...
Two Dimensional Sequence Compression Using MPEG (1998)
Ming-Hoe Kiu, Xiao-Song Du, Robert J. Moorhead, David C. Banks, Raghu Machiraju
This paper presents a technique to use the MPEG--2 compression scheme to compress a 2D array of images. The technique operates over two spatial dimensions, instead of the normal temporal dimension....
A Numerical Imaging Approach to Comparative Visualization (1998)
Numerical simulation is now an acceptable mode of inquiry into a wide range of physical phenomena. As computational methods and hardware continue to advance, it is often the case that older, legacy...
Evaluation and Design of Filters Using a Taylor Series Expansion (1997)
Torsten Möller, Raghu Machiraju, Klaus Mueller, Roni Yagel
We describe a new method for analyzing, classifying, and evaluating filters that can be applied to interpolation filters as well as to arbitrary derivative filters of any order. Our analysis is based...
A Comparison of Normal Estimation Schemes (1997)
Torsten Möller, Raghu Machiraju, Klaus Mueller, Roni Yagel
The task of reconstructing the derivative of a discrete function is essential for its shading and rendering as well as being widely used in image processing and analysis. We survey the possible...
Detection and Enhancement of Scale-Coherent Structures Using Wavelet Transform Products (1997)
Raghu Machiraju, Ajeetkumar Gaddipatti, Roni Yagel
Most of the information in a typical image is concentrated in a few regions. These are dominated by structures characterized by discontinuities in intensity. Inherent to the identification of...
Steering Image Generation with Wavelet Based Perceptual Metric (1997)
Ajeetkumar Gaddipatti, Raghu Machiraju
It is often the case that images generated by image synthesis algorithms are judged by visual examination. The user resorts to an iterative refinement process of inspection and rendering until a...
Reconstruction Error Characterization and Control: A Sampling Theory Approach (1996)
Reconstruction is prerequisite whenever a discrete signal needs to be resampled as a result of transformation such as texture mapping, image manipulation, volume slicing. and rendering. We present a...
Reconstruction Error Characterization and Control: A Sampling Theory Approach (1996)
Raghu Machiraju, Roni Yagel, Ieee Computer Society, Ieee Computer Society
Reconstruction is prerequisite whenever a discrete signal needs to be resampled as a result of transformation such as texture mapping, image manipulation, volume slicing, and rendering. We present a...
Classification and Local Error Estimation of Interpolation and. . . (1996)
Torsten Möller, Raghu Machiraju, Klaus Mueller, Roni Yagel
We describe a new method for analyzing, classifying, and evaluating filters, which can be applied to interpolation filters, and derivative filters. Our analysis is based on the Taylor series...
Error Bounded and Adaptive Image Reconstruction (1995)
Raghu Machiraju, Edward Swan, Roni Yagel
Reconstruction is imperative whenever an image needs to be resampled as a result of transformation such as an affine or perspective transform, or texture mapping. We present a new method for the...
Data-Parallel Volume Rendering Algorithms (1995)
this paper we consider a general scheme for parallel volume rendering, described in Section 2. We describe an algorithm in this paper that has an extremely efficient implementation on distributed...
Data-Parallel Volume Rendering Algorithms (1995)
this paper we consider a general scheme for parallel volume rendering, presented in Section 1.1. We describe an algorithm that has an extremely efficient implementation on distributed memory MIMD...
Spatial Domain Characterization and Control of Reconstruction Errors (1995)
Raghu Machiraju, Edward Swan, Roni Yagel
Reconstruction is imperative whenever an image or a volume needs to be resampled as a result of an affine or perspective transformation, texture mapping, or volume rendering. We present a new method...
Spatial Domain Characterization and Control of Reconstruction Errors (1995)
Raghu Machiraju, Edward Swan, Roni Yagel
Reconstruction is imperative whenever an image or a volume needs to be resampled as a result of an affine or perspective transformation, texture mapping, or volume rendering. We present a new method...
Accuracy Control of Reconstruction Errors in Volume Slicing (1995)
Slicing operation is a most powerful and useful tool for the exploration of volume data. In the core of the slicing algorithm is a resampling process that produces a set of new samples constituting...
Rb is critical in a mammalian tissue stem cell population
Wenzel, Pamela L., Wu, Lizhao, De Bruin, Alain, Chong, Jean-Leon, Chen, Wen-Yi, Dureska, Geoffrey, ...
The inactivation of the retinoblastoma (Rb) tumor suppressor gene in mice results in ectopic proliferation, apoptosis, and impaired differentiation in extraembryonic, neural, and erythroid lineages,...
Steering Image Generation With Wavelet Based Perceptual Metric
Raghu Machiraju, Ajeetkumar Gaddipatti, Roni Yagel
this paper can be improved in several ways. Better noise models can lead to a better thresholding scheme. The sub-band method can be improved through the use of non-redundant wavelet transformations...