HomePage of Petra Wiederhold, Indentation Images Data Bank.
CINVESTAV / UV - Vickers Indentation Images Data Bank
These microscopic Vickers indentation images
were obtained from Steel and Hafnium Nitride samples,
acquired by a CCD camera implemented in the
microdurometer Mitutoyo model HM-124, within a joint project by
CINVESTAV-IPN (Mexico City) and University of Veracruz (Boca del Rio,
Mexico) performed during 2014-2018.
Online publication of this
Data
Bank:
July
2018.
Most images are of 640x480 pixels size and bmp format. Each image contains exactly one indentation footprint of approximately rhombic shape and approximately aligned orientation. Size and position of the footprint in the image varies, also a slight rotation is possible.
Image
Group "SteelUnpolished":
60 indentation images
obtained from Steel-316 samples,
roughly polished surface, 50-fold magnification, indenter load 500 gf. · To see miniature versions of these images at a glance, click HERE. To download a rar-file which contains all images, click HERE.
·
SteelUnpolished_ExpertA_Table.pdf --- table containing the annotation
manually generated by Expert A --- ground true coordinates of the four
vertices of each indentation.
·
SteelUnpolished_ExpertA.txt --- the same annotation by Expert A
but
in
simple txt-format.
·
SteelUnpolished_ResultsA.pdf
--- results of
image analysis including error analysis with respect to annotation by
Expert A |
Image
Group "SteelPolished":
40 indentation images
obtained from Steel-316 samples,
specular-polished surface, 50-fold magnification, indenter load 500 gf. · To see miniature versions of these images at a glance, click HERE. To download a rar-file which contains all images, click HERE.
·
SteelPolished_ExpertA_Table.pdf
--- table containing the annotation
manually generated by Expert A --- ground true coordinates of the four
vertices of each indentation.
·
SteelPolished_ExpertA.txt --- the same annotation by Expert A
but
in simple
txt-format.
·
SteelPolished_ResultsA.pdf --- results of image analysis including error
analysis with respect to annotation by Expert A |
Image
Group "Deformed":
50 indentation images
obtained from Hafnium samples,
50-fold magnification, indenter load 300 gf. · To see miniature versions of these images at a glance, click HERE. To download a rar-file which contains all images, click HERE.
·
Deformed_ExpertA_Table.pdf
--- table containing the annotation manually
generated by Expert A --- ground true coordinates of the four vertices
of each indentation.
·
Deformed_ExpertA.txt --- the same annotation by Expert A in simple
txt-format.
·
Deformed_ResultsA.pdf
--- results of image analysis including error
analysis with respect to annotation by Expert A |
Image
Group "Imperfection":
35 indentation images
obtained from Steel-316 samples,
50-fold magnification, indenter load 500 gf, presence of diverse types
of imperfections. · To see miniature versions of these images at a glance, click HERE. To download a rar-file which contains all images, click HERE.
·
Imperfection_ExpertA_Table.pdf --- table containing the annotation
manually generated by Expert A --- ground true coordinates of
the four
vertices of each indentation.
·
Imperfection_ExpertA.txt --- the same annotation by Expert A
but
in simple
txt-format.
·
Imperfection_ResultsA.pdf
--- results of image analysis including error
analysis with respect to annotation by Expert A |