Results 41 to 50 of about 359,274 (310)

Calibration by correlation using metric embedding from non-metric similarities [PDF]

, 2013
This paper presents a new intrinsic calibration method that allows us to calibrate a generic single-view point camera just by waving it around. From the video sequence obtained while the camera undergoes random motion, we compute the pairwise time ...
Censi, Andrea, Scaramuzza, Davide
core   +2 more sources

Self-Calibration of Cameras with Euclidean Image Plane in Case of Two Views and Known Relative Rotation Angle

, 2018
The internal calibration of a pinhole camera is given by five parameters that are combined into an upper-triangular $3\times 3$ calibration matrix.
B Caprile, D Nistér, David Cox, H Li, H Stewénius, H Stewénius, J Heikkilä, M Burri, P Sturm, R Tsai, RI Hartley, RI Hartley, S Maybank, Stephen Maybank, Z Zhang   +14 more
core   +1 more source

Easy Leaf Area: Automated digital image analysis for rapid and accurate measurement of leaf area. [PDF]

, 2014
UnlabelledPremise of the studyMeasurement of leaf areas from digital photographs has traditionally required significant user input unless backgrounds are carefully masked.
Bloom, Arnold J, Easlon, Hsien Ming
core   +3 more sources

A Pointing Solution for the Medium Size Telescopes for the Cherenkov Telescope Array

, 2016
An important aspect of the calibration of the Cherenkov Telescope Array is the pointing, which enables an exact alignment of each telescope and therefore allows to transform a position in the sky to a point in the plane of the Cherenkov camera and vice ...
Garczarczyk, M., Oakes, L., Schwanke, U., Tiziani, D., van Eldik, C.   +4 more
core   +2 more sources

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

A Novel and Simplified Extrinsic Calibration of 2D Laser Rangefinder and Depth Camera

Machines, 2022
It is too difficult to directly obtain the correspondence features between the two-dimensional (2D) laser-range-finder (LRF) scan point and camera depth point cloud, which leads to a cumbersome calibration process and low calibration accuracy. To address
Wei Zhou, Hailun Chen, Zhenlin Jin, Qiyang Zuo, Yaohui Xu, Kai He   +5 more
doaj   +1 more source

Hybrid Focal Stereo Networks for Pattern Analysis in Homogeneous Scenes

, 2013
In this paper we address the problem of multiple camera calibration in the presence of a homogeneous scene, and without the possibility of employing calibration object based methods.
A Wang, AD Bimbo, C Eyles, D Brown, D Eynard, D Nistér, DG Lowe, M Ahmed, MA Fischler, MA Lourakis, OD Faugeras, PF Sturm, R Hartley, RI Hartley, RI Hartley, RI Hartley, S Sinha, T Dang, T Svoboda, X Wang, Z Kukelova, Z Zhang   +21 more
core   +2 more sources

The QUEST Data Processing Software Pipeline [PDF]

, 2007
A program that we call the QUEST Data Processing Software Pipeline has been written to process the large volumes of data produced by the QUEST camera on the Samuel Oschin Schmidt Telescope at the Palomar Observatory. The program carries out both aperture
Anne Bauer, Charles Baltay, David Rabinowitz, Jonathan Jerke, Julia Silge, Nancy Ellman, Peter Andrews, Press W. H., Rochelle Lauer   +8 more
core   +2 more sources

Diabetes‐induced vascular calcification is associated with low pyrophosphate and its oral supplementation prevents calcification in diabetic mice

FEBS Open Bio, EarlyView.
Induction of diabetes in three different mouse strains uniformly resulted in an increase in TNAP activity and a reduction in pyrophosphate (PPi) in the circulation. Inhibition of TNAP restored plasma PPi. Diabetes‐induced calcification in the media layer of the aorta was detected only in the Abcc6−/− strain, which is predisposed to ectopic ...
Krisztina Fülöp, Eszter Kozák, Natália Tőkési, Lilian Kocsis, Anikó Kelemen, Zsuzsanna Geszti, Adriána Kutás, Mariann Harangi, Ágnes Diószegi, Zsolt Rapi, József Balla, Olivier Le Saux, András Váradi, Viola Pomozi   +13 more
wiley   +1 more source

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

FEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point, Wafaa Achache, Janïs Laudouze, Eliana Sepulveda Ramos, Mickaël Maziero, Céline Crauste, Stéphane Canaan, Pierre Santucci   +7 more
wiley   +1 more source