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Praveen Kumar Pokala

5 accepted papers

2025

Chitrarth: Bridging Vision and Language for a Billion People

ICASSP 2025accepted

Recent multimodal foundation models are primarily trained on English or high resource European language data, which limits their applicability to other medium and low-resource languages, such as the Indian languages. To address this limitation, we introduce Chitrarth (Chitra: Image; Artha: Meaning),…

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2021

Sparsity Driven Latent Space Sampling for Generative Prior Based Compressive Sensing

ICASSP 2021accepted

We address the problem of recovering signals from compressed measurements based on generative priors. Recently, generative-model based compressive sensing (GMCS) methods have shown superior performance over traditional compressive sensing (CS) techniques in recovering signals from fewer measurements…

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2020

Confirmnet: Convolutional Firmnet and Application to Image Denoising and Inpainting

ICASSP 2020accepted

We address the problem of efficient convolutional sparse coding (CSC) and develop a non-convex-penalty-regularized CSC formulation, namely, minimax-concave CSC (MC <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> SC). MC <sup xmlns:mml="http://ww…

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2019

FirmNet: A Sparsity Amplified Deep Network for Solving Linear Inverse Problems

ICASSP 2019accepted

Recovering a sparse signal from a noisy linear measurement is an important problem in signal processing. Typically, one employs greedy pursuit techniques such as OMP, CoSaMP to solve an ℓ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> regulariz…

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2019

SAMIR: Sparsity Amplified Iteratively-reweighted Beamforming for High-rsolution Ultrasound Imaging

ICASSP 2019accepted

In ultrasound imaging, one typically employs delay-and-sum (DAS) beamformers for image reconstruction. An apodization window is used to suppress the side-lobes of an array beam pattern. The application of an apodization window to suppress the side-lobes widens the main-lobe width. We consider a stat…

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