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Measurement error in geometric morphometrics
Development Genes and Evolution, 2016 Geometric morphometrics-a set of methods for the statistical analysis of shape once saluted as a revolutionary advancement in the analysis of morphology -is now mature and routinely used in ecology and evolution. However, a factor often disregarded in empirical studies is the presence and the extent of measurement error.
Fruciano, Carmelo, Fruciano C.
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The geometric error for homographies [PDF]
Computer Vision and Image Understanding, 2005 We address the problem of finding optimal point correspondences between images related by a homography: given a homography and a pair of matching points, determine a pair of points that are exactly consistent with the homography and that minimize the geometric distance to the given points.
Ondrej Chum +2 more
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On Geometric Error for Homographies [PDF]
, 2003 We address the problem of finding optimal point correspondences between images related by an homography: given an homography and a pair of matching points, determine a pair of points that are exactly consistent with the homography and that minimize the geometric distance to the given points.
Chum, Ondra +2 more
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Comparison of Volumetric Analysis Methods for Machine Tools with Rotary Axes [PDF]
, 2009 Confidence in the ability of a production machine to meet manufacturing tolerances requires a full understanding of the accuracy of the machine. However, the definition of “the accuracy of the machine” is open to interpretation. Historically, this has
Longstaff, Andrew P. +3 more
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Geometric View of Measurement Errors [PDF]
Communications in Statistics - Simulation and Computation, 2011 The slope of the best fit line from minimizing the sum of the squared oblique errors is the root of a polynomial of degree four. This geometric view of measurement errors is used to give insight into the performance of various slope estimators for the measurement error model including an adjusted fourth moment estimator introduced by Gillard and Iles ...
Diarmuid O'driscoll, Donald E. Ramirez
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Error Correction and Detection, a Geometric Approach [PDF]
The Computer Journal, 1984 Summary: This paper is basically a tutorial on error detection and correction. The presentation though is via a new approach. This approach has an inherent characteristic leading to parallel hardware implementation and is thus better suited for computer and parallel processing applications.
Rabab K. Ward, M. Tabandeh
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Geometric continuous patch complexes [PDF]
, 1987 A theory of geometric continuity of arbitrary order is presented. Conditions of geometric continuity at a vertex where a number of patches meet are investigated.
Hahn, JM
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Predicting geometric errors and failures in additive manufacturing
Rapid Prototyping Journal, 2023 Purpose Objects fabricated using additive manufacturing (AM) technologies often suffer from dimensional accuracy issues and other part-specific problems. This study aims to present a framework for estimating the printability of a computer-aided design (CAD) model that expresses the probability that the model is fabricated correctly via an AM ...
Ioannis Fudos +3 more
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Applied Sciences, 2023 This study implemented the measurement results and administrative information obtained from the hole plate into the Digital Calibration Certificate (DCC).
Ming-Xian Lin, Tsung-Han Hsieh
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Ultraprecision Real-Time Displacements Calculation Algorithm for the Grating Interferometer System
Sensors, 2019 Grating interferometry is an environmentally stable displacement measurement technique that has significant potential for identifying the position of the wafer stage.
Weinan Ye +6 more
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