Results 41 to 50 of about 285,137 (292)

Dense RGB-D visual odometry using inverse depth [PDF]

open access: yesRobotics and Autonomous Systems, 2016
In this paper we present a dense visual odometry system for RGB-D cameras performing both photometric and geometric error minimisation to estimate the camera motion between frames. Contrary to most works in the literature, we parametrise the geometric error by the inverse depth instead of the depth, which translates into a better fit of the ...
Gutierrez-Gomez, Daniel   +2 more
openaire   +3 more sources

Non-inversion conservation tillage as an underestimated driver of tillage erosion

open access: yesScientific Reports, 2022
Tillage erosion is a widely underestimated process initiating soil degradation especially in case of large agricultural fields located in rolling topography.
L. K. Öttl   +4 more
doaj   +1 more source

High-resolution magnetic penetration depth and inhomogeneities in locally noncentrosymmetric SrPtAs

open access: yes, 2016
We present a magnetic-penetration-depth study on polycrystalline and granular samples of SrPtAs, a pnictide superconductor with a hexagonal structure containing PtAs layers that individually break inversion symmetry (local noncentrosymmetry).
Bonalde, I.   +6 more
core   +1 more source

Inversion of multiconfiguration complex EMI data with minimum gradient support regularization: A case study

open access: yes, 2020
Frequency-domain electromagnetic instruments allow the collection of data in different configurations, that is, varying the intercoil spacing, the frequency, and the height above the ground.
de Alba, Patricia Diaz   +3 more
core   +1 more source

Patterns in Inversion Sequences I

open access: yes, 2016
Permutations that avoid given patterns have been studied in great depth for their connections to other fields of mathematics, computer science, and biology.
Corteel, Sylvie   +3 more
core   +1 more source

Depth Inversion Using SAR and Super-Resolution Enhancement: A Case Study on Case II Waters

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Depth inversion is crucial for ocean exploration, with synthetic aperture radar (SAR) technology being a key tool due to its all-weather capabilities. However, SAR-based depth inversion typically has limited resolution, ranging from hundreds to thousands
Meng Zhang   +6 more
doaj   +1 more source

3D Gravity Inversion on Unstructured Grids

open access: yesApplied Sciences, 2021
Compared with structured grids, unstructured grids are more flexible to model arbitrarily shaped structures. However, based on unstructured grids, gravity inversion results would be discontinuous and hollow because of cell volume and depth variations. To
Siyuan Sun, Changchun Yin, Xiuhe Gao
doaj   +1 more source

SHALLOW BATHYMETRY ESTIMATION BASED ON LANDSAT 8 REMOTELY SENSED DATAAT BOHAI SEA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Bathymetry is a key variable in ocean monitoring and measurement research. It becomes more and more important for development of rapid method to invert shallow sea water depth.
D. J. Zhang   +3 more
doaj   +1 more source

Spectropolarimetric NLTE inversion code SNAPI

open access: yes, 2018
Inversion codes are computer programs that fit a model atmosphere to the observed Stokes spectra, thus retrieving the relevant atmospheric parameters. The rising interest in the solar chromosphere, where spectral lines are formed by scattering, requires ...
Milic, Ivan, van Noort, Michiel
core   +1 more source

Using a laser aureole to invert lidar return [PDF]

open access: yes, 1986
An aureole generated by a laser beam was studied. The strength of the signal redirected towards a sensor high above the surface by a combination of one scattering event in the marine boundary layer (mbl) and one single reflection event from the ocean ...
Gerber, H., Hooper, W. P.
core   +1 more source

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