Results 51 to 60 of about 1,188,974 (311)
Enhancement of Fingerprint Images by Shape-Adapted Scale-Space Operators
, 1996 This work presents a novel technique for preprocessing fingerprint images. The method is based on the measurements of second moment descriptors and shape adaptation of scale-space operators with automatic scale selection (Lindeberg 1994). This procedure,
Andrés Almansa +4 more
core +1 more source
Three-dimensional hollow tubular structure of rocket chemical depletion [PDF]
Atmospheric Chemistry and PhysicsThe rocket launch process causes a series of disturbances in the ionosphere, among which a typical phenomenon is the formation of ionospheric electron density depletions caused by chemical reactions involving rocket exhaust, known as Holes in the ...
C. Deng +12 more
doaj +1 more source
FEBS Letters, EarlyView.An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley +1 more source
Dynamic texture recognition using time-causal spatio-temporal scale-space filters
, 2017 This work presents an evaluation of using time-causal scale-space filters as primitives for video analysis. For this purpose, we present a new family of video descriptors based on regional statistics of spatiotemporal scale-space filter responses and ...
Jansson, Ylva, +5 more
core +1 more source
Multi-scale space-variant FRep cellular structures [PDF]
, 2013 Existing mesh and voxel based modeling methods encounter difficulties when dealing with objects containing cellular structures on several scale levels and varying their parameters in space.
Fryazinov, Oleg +5 more
core +1 more source
Molecular Oncology, Volume 20, Issue 6, Page 1429-1452, June 2026.Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice +16 more
wiley +1 more source
Scale Spaces on Lie Groups [PDF]
, 2007 In the standard scale space approach one obtains a scale space representation u:R of an image by means of an evolution equation on the additive group (R d ,¿+¿). However, it is common to apply a wavelet transform (constructed via a representation of a Lie-group G and admissible wavelet ¿) to an image which provides a detailed overview of the group ...
Duits, R., Burgeth, B.
openaire +2 more sources
Dawn-dusk scale of dipolarization front in the Earth's magnetotail: multi-cases study
, 2015 We analyze three dipolarization front (DF) events to investigate their dawn-dusk scales in the Earth's magnetotail using the Cluster measurements in year 2007, when the spacecraft separation is about 1.8 Re (Re is the Earth's radius) and is ...
Andre, M. +15 more
core +1 more source
Molecular Oncology, Volume 20, Issue 6, Page 1513-1534, June 2026.Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff +11 more
wiley +1 more source
Dense scale selection over space, time and space-time
, 2018 Scale selection methods based on local extrema over scale of scale-normalized derivatives have been primarily developed to be applied sparsely---at image points where the magnitude of a scale-normalized differential expression additionally assumes local ...
Lindeberg, Tony +2 more
core +1 more source