1-20 of 172 Search Results for

image segmentation

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
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
... observation and output of the image to a printer. The methods used to enhance the digital image and to extract quantitative information are also described. Different types of image segmentation, namely, adaptive segmentation and contour-based segmentation, are reviewed. The article also presents case studies...
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
... the powder size approaches the μXCT resolution. The watershed algorithm ( Ref 56 , 57 ) is commonly used in image segmentation. The idea of watershed is to treat each object, in this case, powder particle, as a basin and each pixel value as topological information. By flooding the basins, the water...
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
... the boundaries of the object. Segmentation is the process of partitioning an image into segments of same characteristics such as color, intensity, or other criteria. The goal is to simplify the entire digital image by aggregating single pixels into larger regions of pixels. This simplifies the extraction...
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
... to materials researchers. However, it is important to bear in mind that even with a relatively slow, completely manual serial sectioning technique, at 20 to 30 minutes per section on average and approximately 100 person-hours per 250 sections, the time expended in both image segmentation and in analyzing...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003536
EISBN: 978-1-62708-180-1
.../reentrant segments, whereas the tensile fracture profile contains no overlaps. The overlaps are obviously not observed in SEM images; profilometry is an important experimental technique to observe and quantify the fracture surface overlaps. The extent of overlaps in the fracture profile is quantified...
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
... but different shape ratings caused by internal holes. Fig. 29 Simulated images of a single pore or particle. (a) Idealized. (b) Simulated, more realistic image. Gray-level distribution functions are plotted along the line segments shown in each image. Fig. 30 Simulated image with uneven...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001470
EISBN: 978-1-62708-173-3
... schedule developer from the WELDEXCELL system Fig. 9 Neural-network-based seam-tracking system. (a) System utilizing a CCD array camera tracking a clear image. (b) System utilizing a CCD array camera tracking an image with simulated smoke and spatter from a FCAW process Fig. 6 WELDHEAT...
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
... Tomography X-Ray Fluorescence Tomography Direct-Imaging Methods Computer Reconstruction and Visualization of Three-Dimensional Data Preprocessing Segmentation Algorithms Virtual Reality Isosurface Generation Ray Tracing Virtual Reality (VR) provides the ultimate...
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
...°. Two images acquired sequentially using the two light sources provide different contrasts between the part and the powder bed. This difference is useful in segmenting the part from the powder in these images. Measurement of part geometry requires segmentation of the acquired image into two regions...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006644
EISBN: 978-1-62708-213-6
... transmission x-ray topography images showing the operation of a double-ended Frank-Read source during high-temperature treatment of the 4H-SiC sample. The gliding dislocation segment spirals around the pinned points, resulting in a closed dislocation loop (shown in g), and the regenerated dislocation segment...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006668
EISBN: 978-1-62708-213-6
... Magnification Image width, μm Depth of field, μm α = 2 mrad α = 30 mrad 10× 47,600 24,800 1,653 50× 9,520 4,960 331 100× 4,760 2,480 165 500× 952 496 33 1,000× 476 248 17 10,000× 48 25 1.7 100,000× 4.8 2.5 0.17 Note: Micrograph encompasses entire standard...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003759
EISBN: 978-1-62708-177-1
... in (a) depicting excellent segmentation of the SiC particles as the dark phase. The area fraction of SiC particles in this image is equal to the number of black pixels divided by the total number of pixels in the image. Fig. 2 Microstructure that is not suitable for areal analysis techniques...
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
... k ( R ) = p [ j − 1 2 ( N + 1 ) ] sin θ k where θ k = θ max [ 2 k − 1 N T − 1 − 1 ] Image position coordinates r = { x , z } T r = { θ , r } T Mapping of A-scan parameters...
Book Chapter

Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006474
EISBN: 978-1-62708-190-0
... Fig. 10 Diagram of refraction of a longitudinal-wave ultrasonic beam focused on a water/steel interface at incident angles that produced a shear-wave beam in the steel Fig. 1 Schematic showing elements in the real-time ultrasonic imaging system. Courtesy of Pacific Northwest National...
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
... such as image file reading can be performed in parallel with other operations. National Institutes of Health www.nih.gov http://rsb.info.nih.gov/ij ITK ITK (Insight Segmentation and Registration Toolkit) is an open-source, cross-platform system that provides developers with a suite of software tools...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005809
EISBN: 978-1-62708-165-8
... different concentric slotted rings that may be rotated to provide full flow or to restrict oil flow to the underside of the part. These particular features can be finely adjusted to help minimize the degree of distortion attributed to uneven heat removal during quenching. Timed segments during the quenching...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001837
EISBN: 978-1-62708-181-8
... of interceptions of a feature per unit length of test line; L A ′ : the length of linear features per unit area of the test plane Stereological relationships between spatial features and their projected images Table 2 Stereological relationships between spatial features and their projected...
Book Chapter

Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004221
EISBN: 978-1-62708-184-9
... coating (O) with an aluminide layer (A) on top. There is an interdiffusion zone with the base metal (B) and another interdiffusion zone between A and O. Lactic acid etch. See the article “Corrosion of Industrial Gas Turbines” in this Volume. Fig. 18 Image showing corrosion of copper segments...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006548
EISBN: 978-1-62708-290-7
...) and into the vat of feedstock A, exposing the resin at level D. The mountain image at the top of the sketch is a radar-based recording device that sends an image to the light source (4). The part is shown by dotted lines in the build chamber and is built on the platform (5). Source: Ref 9 Fig. 3...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005422
EISBN: 978-1-62708-196-2
... the grain boundary must be implemented. For instance, assume a given resolution Δ r . Once the spacing between next-neighbor nodes of a grain boundary falls below the critical size of 0.5Δ r , the corresponding segment loses any physical meaning for the simulation and can be deleted. This procedure...