Search Results for author: Sanjay Ghosh

Found 8 papers, 2 papers with code

Nonlocal Co-occurrence for Image Downscaling

1 code implementation22 Dec 2020 Sanjay Ghosh, Arpan Garai

In this work, we present a new downscaling technique which is based on kernel-based image filtering concept.

Linearized ADMM and Fast Nonlocal Denoising for Efficient Plug-and-Play Restoration

no code implementations18 Jan 2019 Unni V. S., Sanjay Ghosh, Kunal. N. Chaudhury

In plug-and-play image restoration, the regularization is performed using powerful denoisers such as nonlocal means (NLM) or BM3D.

Denoising Image Restoration +1

Artifact reduction for separable non-local means

no code implementations26 Oct 2017 Sanjay Ghosh, Kunal. N. Chaudhury

To bypass this, the authors proposed a separable approximation in which the image rows and columns are filtered using lifting.

Denoising

Pruned non-local means

no code implementations28 Jan 2017 Sanjay Ghosh, Amit K. Mandal, Kunal. N. Chaudhury

In Non-Local Means (NLM), each pixel is denoised by performing a weighted averaging of its neighboring pixels, where the weights are computed using image patches.

Denoising

Fast Bilateral Filtering of Vector-Valued Images

no code implementations7 May 2016 Sanjay Ghosh, Kunal. N. Chaudhury

In this paper, we consider a natural extension of the edge-preserving bilateral filter for vector-valued images.

Fast and High-Quality Bilateral Filtering Using Gauss-Chebyshev Approximation

no code implementations7 May 2016 Sanjay Ghosh, Kunal. N. Chaudhury

A direct implementation of the Gaussian bilateral filter requires $O(\sigma_s^2)$ operations per pixel, where $\sigma_s$ is the standard deviation of the spatial Gaussian.

Vocal Bursts Intensity Prediction

On Fast Bilateral Filtering using Fourier Kernels

no code implementations26 Mar 2016 Sanjay Ghosh, Kunal. N. Chaudhury

By controlling the cardinality of the Fourier basis, we can obtain a good tradeoff between the run-time and the filtering accuracy.

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