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 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

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.

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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