Image Processing and Analysis in Biomechanics
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Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:287929
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Imaging Arterial Fibres Using Diffusion Tensor Imaging—Feasibility Study and Preliminary Results
MR diffusion tensor imaging (DTI) was used to analyze the fibrous structure of aortic tissue. A fresh porcine aorta was imaged at 7T using a spin echo sequence with the following parameters: matrix 128
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:904091 -
3D Elbow Kinematics with Monoplanar Fluoroscopy: In Silico Evaluation
An in-silico assessment of the performance of 3D video-fluoroscopy for the analysis of the kinematics of long bones is proposed. A reliable knowledge of in-vivo joints kinematics in physiological conditions is fu...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:142989 -
Soft Tissue Structure Modelling for Use in Orthopaedic Applications and Musculoskeletal Biomechanics
We present our methodology for the three-dimensional anatomical and geometrical description of soft tissues, relevant for orthopaedic surgical applications and musculoskeletal biomechanics. The technique invol...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:389356 -
Toward the Development of Virtual Surgical Tools to Aid Orthopaedic FE Analyses
Computational models of joint anatomy and function provide a means for biomechanists, physicians, and physical therapists to understand the effects of repetitive motion, acute injury, and degenerative diseases...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:190293 -
Efficient and Low-Cost 3D Structured Light System Based on a Modified Number-Theoretic Approach
3D scanning based on structured light (SL) has been proven to be a powerful tool to measure the three-dimensional shape of surfaces, especially in biomechanics. We define a set of conditions that an optimal SL...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:474389 -
Analysis and Modelling of Muscles Motion during Whole Body Vibration
The aim of the study is to characterize the local muscles motion in individuals undergoing whole body mechanical stimulation. In this study we aim also to evaluate how subject positioning modifies vibration du...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:972353 -
Determination of Three-Dimensional Left Ventricle Motion to Analyze Ventricular Dyssyncrony in SPECT Images
A method to compute three-dimension (3D) left ventricle (LV) motion and its color coded visualization scheme for the qualitative analysis in SPECT images is proposed. It is used to investigate some aspects of ...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:290695 -
Nonlinear Synchronization for Automatic Learning of 3D Pose Variability in Human Motion Sequences
A dense matching algorithm that solves the problem of synchronizing prerecorded human motion sequences, which show different speeds and accelerations, is proposed. The approach is based on minimization of MRF ...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:507247 -
A New Method to Calibrate Attachment Angles of Data Loggers in Swimming Sharks
Recently, animal-borne accelerometers have been used to record the pitch angle of aquatic animals during swimming. When evaluating pitch angle, it is necessary to consider a discrepancy between the angle of an...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:732586 -
Optical Flow Active Contours with Primitive Shape Priors for Echocardiography
Accurate delineation of object borders is highly desirable in echocardiography, especially at the left ventricle. Among other model-based techniques, active contours (or snakes) provide a unique and powerful a...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:836753 -
Evaluation of a Validation Method for MR Imaging-Based Motion Tracking Using Image Simulation
Magnetic Resonance (MR) imaging-based motion and deformation tracking techniques combined with finite element (FE) analysis are a powerful method for soft tissue constitutive model parameter identification. Ho...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:942131 -
Segmentation, Reconstruction, and Analysis of Blood Thrombus Formation in 3D 2-Photon Microscopy Images
We study the problem of segmenting, reconstructing, and analyzing the structure growth of thrombi (clots) in blood vessels in vivo based on 2-photon microscopic image data. First, we develop an algorithm for segm...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:147216 -
Adding Image Constraints to Inverse Kinematics for Human Motion Capture
In order to study human motion in biomechanical applications, a critical component is to accurately obtain the 3D joint positions of the user's body. Computer vision and inverse kinematics are used to achieve ...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:142354 -
Recovery of Myocardial Kinematic Function without the Time History of External Loads
A time-domain filtering algorithm is proposed to recover myocardial kinematic function using output-only measurements without the time history of external loads. The main contribution of this work is that the ...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:310473 -
In Vivo Measurement of Glenohumeral Joint Contact Patterns
The objectives of this study were to describe a technique for measuring in-vivo glenohumeral joint contact patterns during dynamic activities and to demonstrate application of this technique. The experimental ...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:162136 -
Computer Aided Modeling of Human Mastoid Cavity Biomechanics Using Finite Element Analysis
The aim of the present study was to analyze the human mastoid cavity on sound transmission using finite element method. Pressure distributions in the external ear canal and middle ear cavity at different frequ...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:203037 -
Three-Dimensional Morphometry of Single Endothelial Cells with Substrate Stretching and Image-Based Finite Element Modeling
Morphologically accurate reproduction of the behavior of endothelial cells is a key to understanding their mechanical behavior in cyclically inflated arteries and to quantitatively correlating this with cellul...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:616091 -
2D-3D Registration of CT Vertebra Volume to Fluoroscopy Projection: A Calibration Model Assessment
This study extends a previous research concerning intervertebral motion registration by means of 2D dynamic fluoroscopy to obtain a more comprehensive 3D description of vertebral kinematics. The problem of est...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:806094 -
Colour Image Segmentation Using Homogeneity Method and Data Fusion Techniques
A novel method of colour image segmentation based on fuzzy homogeneity and data fusion techniques is presented. The general idea of mass function estimation in the Dempster-Shafer evidence theory of the histog...
Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:367297