Convolution kernel design and efficient algorithm for sampling density correction

KO Johnson, JG Pipe - … in Medicine: An Official Journal of the …, 2009 - Wiley Online Library
… , sampling density correction is … on sampling density correction. The error from the gridding
step has been characterized and minimized for even modest oversampling ratios and kernel

Projection defocus correction using adaptive kernel sampling and geometric correction in dual-planar environments

S Ladha, K Smith-Miles… - CVPR 2011 …, 2011 - ieeexplore.ieee.org
… In summary, we implement a fast and efficient geometric correction technique [7] and use …
of the surface geometry is leveraged to densely measure defocus kernels near regions where …

Simple boundary correction for kernel density estimation

MC Jones - Statistics and computing, 1993 - Springer
… lar samples, the most severely non-zero intercept of the basic kernel estimate results in linear
correction erro… Finally in this section, we display a few linearly corrected boundary kernels

The reproducing Stein kernel approach for post-hoc corrected sampling

L Hodgkinson, R Salomone, F Roosta - arXiv preprint arXiv:2001.09266, 2020 - arxiv.org
… setting where samples are obtained via the … sampling yields consistent estimators for
quantities related to a target distribution of interest by using samples obtained from a geometrically

Interpolation method for geometric correction in highly squint synthetic aperture radar

T Long, Y Li, Z Ding, L Liu - IET Radar, Sonar & Navigation, 2012 - IET
… out the geometric correction of slant images with the folded spectrum. On the other hand,
under-sampling may happen in the geometric correction, … The new 2D sinc interpolation kernel

Blue-noise point sampling using kernel density model

R Fattal - ACM Transactions on Graphics (TOG), 2011 - dl.acm.org
… Points distributions are generated by sampling this model. This new formulation of the … We
derive a highly efficient multi-scale sampling scheme for drawing random point distributions …

A geometrical method for removing edge effects from kernel-type nonparametric regression estimators

P Hall, TE Wehrly - Journal of the American Statistical Association, 1991 - Taylor & Francis
… We introduce a simple geometric method for removing edge effects from kernel-type nonpar~…
The usual kernel-type estimator may be applied to the new, enlarged data set, Without any …

Bias reduction in kernel density estimation by smoothed empirical transformations

D Ruppert, DBH Cline - The Annals of Statistics, 1994 - projecteuclid.org
… here but at larger numbers of samples that we have examined. The higher-order kernels
do reduce bias compared to the KDE, but higher-order kernel estimators have larger IMSE's …

Geometric methods for sampling, optimization, inference, and adaptive agents

A Barp, L Da Costa, G França, K Friston, M Girolami… - Handbook of …, 2022 - Elsevier
… , we identify fundamental geometric structures that underlie the problems of sampling, …
geometric structures to solve these problems efficiently. We show that a wide range of geometric

Geometric correction based color image watermarking using fuzzy least squares support vector machine and Bessel K form distribution

C Wang, X Wang, C Zhang, Z Xia - Signal Processing, 2017 - Elsevier
… to extract the watermark by classifying samples derived from watermarked image. Yang
et al. [17] presented a geometric correction based robust color image watermarking scheme …