On Sampling Strategies and Interpolation Schemes for Satellite-Tracked Drifters

Evaluation of an Oil Spill Trajectory Model Using Satellite-tracked, Oil-spill-simulating Drifters

We deployed ninety-seven oil-spillsimulating drifters over the continental shelf of the northeastern Gulf of Mexico during five hydrographic surveys conducted from 1997 through 1999. Earlier, sideby-side comparisons with spilled crude petroleum on the ocean surface had demonstrated that these drifters moved on the ocean surface like consolidated oil slicks under light to moderate winds. (Under ...

New adaptive interpolation schemes for efficient meshbased motion estimation

Motion estimation and compensation is an essential part of existing video coding systems. The mesh-based motion estimation (MME) produces smoother motion field, better subjective quality (free from blocking artifacts), and higher peak signal-to-noise ratio (PSNR) in many cases, especially at low bitrate video communications, compared to the conventional block matching algorithm (BMA). Howev...

Investigation of Interpolation Strategies for Hybrid Schemes in Computational Aeroacoustics

One key challenge in the numerical simulation of aeroacoustic fields is the huge disparity of scales between flow structures and audible acoustic wavelengths. A volume discretization, resolving both scales from the generating vortex to the desired microphone position, not only leads to a very high number of cells but also to a very small time step size in order to minimize dissipation of the ac...

Spatial Sampling Strategies for the Effect of Interpolation Accuracy

Spatial interpolation methods are widely used in various fields and have been studied by several scholars with one or a few specific sampling datasets that do not reflect the complexity of the spatial characteristics and lead to conclusions that cannot be widely applied. In this paper, three factors that affect the accuracy of interpolation have been considered, i.e., sampling density, sampling...

Optimal Sampling and Interpolation