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image processing algorithms

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Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003758
EISBN: 978-1-62708-177-1
... the general rules and guidelines for optimization of image processing algorithms from the viewpoint of shape quantification. It concludes with examples that demonstrate the usefulness of automatic image analysis in comparison to manual methods. automatic image analysis digital measurements image...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006439
EISBN: 978-1-62708-190-0
... by technical device tradeoffs. Random noise, so-called white noise, is caused by stray electrons. Those are influenced by heat differences on the sensor and other physical effects. Additionally, several image processing algorithms also cause noise. Dark noise is caused by the lack of illumination...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006452
EISBN: 978-1-62708-190-0
... methods. It also considers various methods of comparing the performance of arrays and imaging algorithms. The article provides a comparison of various advanced and nonlinear imaging algorithm and looks at some practical industrial applications of arrays. It concludes with some future perspectives...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006445
EISBN: 978-1-62708-190-0
... thickness ( Fig. 12 ). Fig. 12 Correlation of density and radiation intensity. Source: Ref 12 Image processing algorithms can have a significant influence over the ability to detect flaws. Ponomarev ( Ref 13 ) has demonstrated the effects of various image processing techniques on digital...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003760
EISBN: 978-1-62708-177-1
... dissolution or focused ion beam ablation, involve imaging taking place periodically at a known increment in a continuous material-removal process. Other methods, such as x-ray tomography, can nondestructively reveal the nature of the hidden 3D structure. It should be noted that any characteristic that can...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006438
EISBN: 978-1-62708-190-0
... sonic, flash heating lamps, inductively coupled eddy currents, and lasers. Visual image processing algorithms designed to detect subtle differences between a reference part image and an inspection object or between images of a part taken after a time interval looking for indications of change...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006568
EISBN: 978-1-62708-290-7
... demanding process, requiring the algorithm to stack real space images to recover the volumetric dataset ( Fig. 11 ). Once the stack of 2D images has been reconstructed, visualization can be accomplished with packages such as ImageJ ( Ref 37 ), Volume Graphics’ VGSTUDIO MAX ( Ref 54 ), and Thermo Fisher...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005432
EISBN: 978-1-62708-196-2
... size, because this information is a result of the experiment ( Ref 18 ). Furthermore, the scale of the CA can be coupled to the scale of the EBSD image ( Ref 25 ). However, EBSD data are often imperfect and must therefore be processed before being used as input to a simulation. Decisions must be made...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006564
EISBN: 978-1-62708-290-7
... and classify the spreading defects into six different classes based on the process error that created that defect. The machine-learning algorithm was trained by using a database of image patches representing six types of defects: recoater hopping, recoater streaking, debris, superelevation, part failure...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005892
EISBN: 978-1-62708-167-2
.... Therefore, one of the goals of a cost-effective optimization algorithm is to reduce the number of function evaluations that is needed by the search process. As far as algorithms are concerned, within a design space that is locally quadratic, the slope (gradient) information can be used to drive...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006456
EISBN: 978-1-62708-190-0
.... It also provides information on digital radiography, image processing and analysis, dual-energy imaging, and partial angle imaging, of a CT system. computed tomography digital radiography dual-energy imaging film radiography partial angle imaging real-time radiography X-ray computed tomography...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006451
EISBN: 978-1-62708-190-0
... to do this; these analyzers can be divided into two main groups: hardware-based lock-in analyzers and software-based lock-in algorithms. Hardware Lock-In Analyzers Additional insight into TSA can be realized by examining the response from the IR cameras from a signal processing perspective...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006477
EISBN: 978-1-62708-190-0
... radiography over conventional film radiography are: Digital detectors require less radiation to create an image, typically only 1 to 4% of that normally required for a fine-grained, high-contrast, high-speed film ( Ref 1 ). Image processing and computer-aided detection and diagnosis algorithms...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005616
EISBN: 978-1-62708-174-0
... of digital radiography over conventional film radiography: Digital detectors require less radiation to create an image, typically only 1 to 4% of that normally required for a fine-grained, high-contrast, high-speed film ( Ref 1 ). Image processing and computer-aided detection and diagnosis...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005504
EISBN: 978-1-62708-197-9
..., or focused ion beam ablation, all of which involve imaging periodically at a known increment in a continuous material-removal process. Other 3-D characterization methods, such as x-ray tomography, can nondestructively reveal the nature of the 3-D structure. It should be noted that any characteristic...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005544
EISBN: 978-1-62708-197-9
... for image analysis. Developed through extreme programming methodologies, ITK's algorithms allow for registering and segmenting multidimensional data. National Library of Medicine, ITK Project http://www.itk.org Mimics Mimics software processes and edits two-dimensional image data, such as computed...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006472
EISBN: 978-1-62708-190-0
... for the reference blocks according to applicable codes and standards. It also provides the ASME, CEN, and ISO recommendations for examination of welds. The article concludes with information on the interpretation and analysis of TOFD images with an aid of sizing algorithms. sizing algorithm time-of-flight...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005553
EISBN: 978-1-62708-174-0
... hierarchical control imaging optics intelligent control multivariable control nonimaging optics process control WELDING is a complex, multidisciplinary process in which both intelligent and conventional control techniques have been successfully applied to mechanized welding systems in an attempt...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003757
EISBN: 978-1-62708-177-1
...Abstract Abstract This article reviews the main theoretical and practical aspects of sequence normally followed in digital image-acquisition, processing, analysis, and output for material characterization. It discusses the main methods of digital imaging, image processing, and analysis...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005415
EISBN: 978-1-62708-196-2
... nucleation in a cubic → tetragonal transformation in two dimensions by (a–c) the Langevin force approach and (d–f), explicit nucleation algorithm approach. Reduced time ( t ) is shown. (Model output images are in color.) Source: Ref 64 Calculation of Activation Energy and Critical Nucleus...