Results 71 to 80 of about 78,444 (298)

Enhanced global and local curvature properties for corner detection [PDF]

open access: yes, 2020
Corner detection is basically a methods used to extract certain kind of features in images which could produce some information including the location or position of the corner points.
Suraya, Abu Bakar   +3 more
core   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

open access: yesFEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke   +4 more
wiley   +1 more source

Long‐term hippocampal alterations and cognitive impairment in a murine model of surgical sepsis

open access: yesFEBS Open Bio, EarlyView.
Using a mouse model of surgical sepsis, we tested long‐term memory and analyzed the transcriptome of single cells isolated from the hippocampus. Survivor mice showed worse memory, loss of certain brain cell subpopulations, and abnormal immune cell activity—suggesting that post‐sepsis brain alterations may be linked to cognitive deficits.
Dong Seong Cho   +4 more
wiley   +1 more source

Corner detection by Local Zernike Moments

open access: yes2015 23nd Signal Processing and Communications Applications Conference (SIU), 2015
In this paper, our corner-based interest point detector, Robust Local Zernike Moment based Features (R-LZMF), which was proved to be scale, rotation and translation-invariant, is investigated for invariance against affine transformation, lighting and blurring.
Ozbulak, Gokhan, Gokmen, Muhittin
openaire   +4 more sources

Contour-based corner detection via angle difference of principal directions of anisotropic Gaussian directional derivatives

open access: yes, 2015
This paper presents a contour-based corner detector using the angle difference of the principal directions of anisotropic Gaussian directional derivatives (ANDDs) on contours. The noise -robust ANDDs can characterize fine directional intensity variations
Shui, PL, Zhang, WC
core   +1 more source

Derivation and characterization of retinal pigment epithelium from urine‐derived iPSCs

open access: yesFEBS Open Bio, EarlyView.
Age‐related macular degeneration causes vision loss via RPE dysfunction and loss. Traditional iPSC therapies rely on invasive biopsies, limiting scalability. Here, we utilize urine‐derived stem cells as an accessible source to generate u‐iPSCs, successfully differentiated into pigmented RPE. This “Urine‐to‐Retina” platform provides a promising path for
Daniella Beiner   +7 more
wiley   +1 more source

Corner‐based object detection method for reactivating box constraints

open access: yesIET Image Processing, 2022
Corner‐based detectors usually generate a large number of false detection boxes because of insufficient attention to the detection area. Recent corner‐based detectors can achieve good performance, but the training equipment requirements have greatly ...
Guoqing Zhao   +2 more
doaj   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

open access: yesFEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young   +7 more
wiley   +1 more source

FAST Pre-Filtering-Based Real Time Road Sign Detection for Low-Cost Vehicle Localization

open access: yesSensors, 2018
In order to overcome the limitations of GNSS/INS and to keep the cost affordable for mass-produced vehicles, a precise localization system fusing the estimated vehicle positions from low-cost GNSS/INS and low-cost perception sensors is being developed ...
Kyoungtaek Choi   +2 more
doaj   +1 more source

Accurate corner detection: an analytical study

open access: yes[1990] Proceedings Third International Conference on Computer Vision, 2002
Résumé disponible sur le ...
Deriche, Rachid, Giraudon, Gérard
openaire   +2 more sources

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