Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 46 for “"Procrustes"”.
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A Solution of the Orthogonal Procrustes Problem With Applications to Orthogonal and Oblique Rotation
Made available in DSpace on 2014-12-08T23:01:09Z (GMT). No. of bitstreams: 1 6500902.pdf: 4279285 bytes, checksum: 2c4890607c9b8a66f8379a67dc9d01a6 (MD5) Previous issue date: 1964
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Measurement Error Models in Shape Analysis
… error in shape analysis, especially in the Procrustes matching of shapes. Shape data are often prone to measurement error due to the wide sources of errors. In traditional shape analysis measurement error is usually not considered, but ignoring measurement error when it does exist can cause …
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Statistical Shape Analysis for the Human Back
In this research, Procrustes and Euclidean distance matrix analysis (EDMA) have been investigated for analysing the three-dimensional shape and form of the human back. Procrustes analysis is used to distinguish deformed backs from normal backs. EDMA is used to locate the changes occurring on the …
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Defining and understanding the role of cofaqs in teacher education : a multiphase sequential exploratory mixed methods hermeneutic study
… grid interviews analyzed through Generalized Procrustes Analysis and Principal Components Analysis, and semi-structured interviews analyzed thematically. Findings indicate the importance of relationship in developing teacher identity, the unique role of cofaq in teacher preparation and higher …
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Time-frequency analysis techniques for non-intrusive load monitoring
… each load signal to a specific wavelet using Procrustes and covariance analysis. In order to automate the load identification process, two machine learning classifiers representing an eager learner and a lazy learner were used in this work. The proposed wavelet design concept has been verified …
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Comparative Morphometrics of the Sacral Vertebra in <em>Aneides</em> (Caudata: Plethodontidae).
… inconclusive. Linear morphometrics and dorsal Procrustes landmarks were the most successful metrics to identify known taxa. Two unidentified fossil salamander sacral vertebrae from Oregon Caves National Monument are examined with the same techniques and are tentatively identified as …
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Pattern recognition to detect fetal alchohol syndrome using stereo facial images
… and 3D landmark information in the form of Procrustes residuals. This project built on this previous work with the use of 3D information combined with texture as features for facial classification. Stereo facial images of children were used to obtain the 3D coordinates of those facial …
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On the use of multivariate statistics to validate global climate models
… time to the atmospheric sciences, orthogonal Procrustes Target Analysis (PTA) was applied. A four dimensional analysis of the low frequency variability of observed geopotential height at 700 and 200hPa for the Northern Hemisphere in the National Meteorological Center's (NMC) final analysis …
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Metricizing' non-metric craniofacial traits: Application of three dimensional geometric morphometric analysis to ancestral identification
… geographic groupings could be identified, while Procrustes Analysis and Thin-Plate Splines were used to assess the nature of form variation within and between groups. Discriminant functions calculated the probability of accurately assigning new individuals to their correct geographic group. The …
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Computational Algorithms for Face Alignment and Recognition
… the rotation of images using the orthogonal Procrustes Problem. The second approach looks at locating features in images using energy-minimizing active contours. We then conclude with a simple and fast algorithm for locating faces in images. Future research is also discussed.
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Using Matched Craniometric and Genetic Data to Assess the Population Structure of Texas-Mexico Border Migrants
… of this unique data set. Genetic distances, Procrustes plots, and Mantel tests were conducted to assess the correlation between ILD and STR data. Interindividual results suggest no significant correlation between ILD and STR data (r = -0.01, p = 0.83). Between population results demonstrate a …
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Ancestry determination using geometric morphometrics
… landmarks. In this research, three-dimensional Procrustes based geometric morphometric methods are employed to investigate whether these techniques can classify ancestry in a forensic context using the cranium. Cranial landmark and semilandmark configurations, focused specifically on features …
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A Statistical Approach to Facial Identification
… digitally taken from ≈3000 facial images and Procrustes analyses were performed to extract the underlying face shapes and used to estimate the parameters in statistical model for the population of face shapes. This allows pairs of faces to be compared in relation to population variability …
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Canonical Variate Analysis and Related Methods with Longitudinal Data
… correlation analysis, redundancy analysis, Procrustes rotation and correspondence analysis with longitudinal data. These least squares methods lend themselves equally well to data from multiple datasets. Lastly, a least squares method for the common principal components model is developed.
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A statistical shape analysis of the neurocranium and long bones
… groups was assessed using Generalized Procrustes Analyses applied to the individual bones of the neurocranium and the long bones of the limbs. The ability to distinguish groups based on the detected variation was assessed using Discriminant Function Analysis. The results show that, when …
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Forensic facial reconstruction using 3-D computer graphics: evaluation and improvement of its reliability in identification
… a mathematical shape analysis assessment using Procrustes Analysis in which, the skull was compared in turn with each of the ten facial templates of each case study (experiment 2).The ranking of the assessors’ reconstruction choice was correlated with the ranking of the Procrustes Analysis by …
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Cranial Sexual Dimorphism in Hispanics Using Geometric Morphometrics
… were detected. Shape differences using the Procrustes coordinates in a canonical variates analysis demonstrate differences in the areas of the cranium that provide the most information of differentiation between the sexes. In the American Black sample, cranial differences between sexes lied …
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Development of evaluation method for visual design with multivariate statistical techniques
… Principal Component Analysis (PCA), Generalized Procrustes Analysis (GPA) and Partial Least Squares (PLS)) have been used in order to summarize and visualize participant preference data of all case studies. In general, the method proposed in this thesis has several advantages over other visual …
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Understanding methods for internal and external preference mapping and clustering in sensory analysis
… canonical variate analysis, generalized procrustes analysis and partial least square regression utilizing statistical software programs of SAS, Unscrambler, Senstools and XLSTAT. Moreover, the homogeneousness of consumer data were investigated through hierarchical cluster analysis …
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Using 3-D Geometric Morphometric Techniques to Further Understand the Relationship Between Neanderthals and Homo sapiens
… The data was fitted using generalized procrustes analysis, a geometric morphometric technique that is a statistically powerful mathematical superimposition method that essentially eliminates size as a variable, while preserving the variables present in shapes. This method breaks down …
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