Electrical formation factor versus porosity coarse-scale transforms from microscopic digital images: Example-based study

We tested computational benchmarking data for the absolute permeability, electrical formation factor, and elastic moduli based on the Finney pack, a physical dense random pack of identical spheres digitally rendered into a 3D rectangular coordinate system, as the starting digital object. It is altered by (a) changing the radius of each sphere and (b) geometrically inverting these new packs by swapping grains and pores. Porosity, the absolute permeability, electrical formation factor, and elastic moduli are computed for all these alterations. The direct (grain-based) objects are relevant to clastic rock, and the inverse objects are proxies for carbonates with moldic pores. To corroborate these computational results, we matched the permeability versus porosity, formation factor versus porosity, and elastic moduli versus porosity trends they form by established theoretical rock physics models. These trends persisted when we reduced the scale of investigation by subsampling some of the digital objects under examination.

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Reduction in size of digital images: does it lead to less detectability or loss of diagnostic information?

Dentomaxillofacial Radiology ◽

10.1038/sj.dmfr.4600329 ◽

1998 ◽

Vol 27 (2) ◽

pp. 93-96 ◽

Cited By ~ 12

Author(s):

C H Versteeg ◽

G C H Sanderink ◽

S R Lobach ◽

P F van der Stelt

Keyword(s):

Digital Images ◽

Diagnostic Information

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Development of a system for craniofacial analysis from monitor-displayed digital images

Dentomaxillofacial Radiology ◽

10.1038/sj.dmfr.4600420 ◽

1999 ◽

Vol 28 (2) ◽

pp. 123-126 ◽

Cited By ~ 28

Author(s):

E Gotfredsen ◽

J Kragskov ◽

A Wenzel

Keyword(s):

Digital Images

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Authentication of Digital Image using Exif Metadata and Decoding Properties

International Journal of Scientific Research in Computer Science Engineering and Information Technology ◽

10.32628/cseit183815 ◽

2018 ◽

pp. 335-341 ◽

Cited By ~ 1

Author(s):

D. P. Gangwar ◽

Anju Pathania

Keyword(s):

Digital Image ◽

Digital Images ◽

Software Tools ◽

Robust Analysis

This work presents a robust analysis of digital images to detect the modifications/ morphing/ editing signs by using the image’s exif metadata, thumbnail, camera traces, image markers, Huffman codec and Markers, Compression signatures etc. properties. The details of the whole methodology and findings are described in the present work. The main advantage of the methodology is that the whole analysis has been done by using software/tools which are easily available in open sources.

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Selection of the efficient video data processing strategy based on the analysis of statistical digital images characteristics

Scientific journal of the Ternopil national technical university ◽

10.33108/visnyk_tntu2018.03.107 ◽

2018 ◽

Vol 91 (3) ◽

pp. 107-114

Author(s):

Mykhailo Palamar ◽

Myroslava Yavorska ◽

Mykhailo Strembitskyi ◽

Volodymyr Strembitskyi

Keyword(s):

Data Processing ◽

Digital Images ◽

Video Data ◽

Processing Strategy ◽

Efficient Video ◽

Selection Of

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I Think We’re Alone Now

Feminist Media Histories ◽

10.1525/fmh.2020.6.4.183 ◽

2020 ◽

Vol 6 (4) ◽

pp. 183-210

Author(s):

Erin Nunoda

Keyword(s):

Public Sphere ◽

Digital Images ◽

Empty Space ◽

The Public ◽

Youtube Videos ◽

The Public Sphere

This article examines YouTube videos (primarily distributed by a user named Cecil Robert) that document so-called dead malls: unpopulated, unproductive, but not necessarily demolished consumerist sites that have proliferated in the wake of the 2008 recession. These works link digital images of mall interiors with pop-song remixes so as to re-create the experience of hearing a track while standing within the empty space; manipulating the songs’ audio frequencies heightens echo effects and fosters an impression of ghostly dislocation. This article argues that these videos locate a potentiality in abandoned mall spaces for the exploration of queer (non)relations. It suggests that the videos’ emphasis on lonely, unconsummated intimacies questions circuitous visions of the public sphere, participatory dynamics online, and the presumably conservative biopolitics (both at its height and in its memorialization) of mall architecture.

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