Search Results for author: Kundan Kumar

Found 17 papers, 7 papers with code

Tracking an Underwater Target with Unknown Measurement Noise Statistics Using Variational Bayesian Filters

no code implementations15 May 2023 Shreya Das, Kundan Kumar, Shovan Bhaumik

Both adaptive filtering techniques are implemented using the traditional Gaussian approximate filters and are applied to a bearings-only tracking problem illustrated with moderately nonlinear and highly nonlinear scenarios to track a target following a nearly straight line path.

Application of Top-hat Transformation for Enhanced Blood Vessel Extraction

no code implementations18 Mar 2022 Tithi Parna Das, Sheetal Praharaj, Sarita Swain, Sumanshu Agarwal, Kundan Kumar

In the medical domain, different computer-aided diagnosis systems have been proposed to extract blood vessels from retinal fundus images for the clinical treatment of vascular diseases.

Pattern Based Multivariable Regression using Deep Learning (PBMR-DP)

no code implementations28 Feb 2022 Jiztom Kavalakkatt Francis, Chandan Kumar, Jansel Herrera-Gerena, Kundan Kumar, Matthew J Darr

We propose a deep learning methodology for multivariate regression that is based on pattern recognition that triggers fast learning over sensor data.

regression

Wav2CLIP: Learning Robust Audio Representations From CLIP

1 code implementation21 Oct 2021 Ho-Hsiang Wu, Prem Seetharaman, Kundan Kumar, Juan Pablo Bello

We propose Wav2CLIP, a robust audio representation learning method by distilling from Contrastive Language-Image Pre-training (CLIP).

Cross-Modal Retrieval Image Generation +3

Chunked Autoregressive GAN for Conditional Waveform Synthesis

1 code implementation ICLR 2022 Max Morrison, Rithesh Kumar, Kundan Kumar, Prem Seetharaman, Aaron Courville, Yoshua Bengio

We show that simple pitch and periodicity conditioning is insufficient for reducing this error relative to using autoregression.

Inductive Bias

NU-GAN: High resolution neural upsampling with GAN

no code implementations22 Oct 2020 Rithesh Kumar, Kundan Kumar, Vicki Anand, Yoshua Bengio, Aaron Courville

In this paper, we propose NU-GAN, a new method for resampling audio from lower to higher sampling rates (upsampling).

Audio Generation Speech Synthesis +1

Blood Vessel Detection using Modified Multiscale MF-FDOG Filters for Diabetic Retinopathy

no code implementations26 Oct 2019 Debojyoti Mallick, Kundan Kumar, Sumanshu Agarwal

Blindness in diabetic patients caused by retinopathy (characterized by an increase in the diameter and new branches of the blood vessels inside the retina) is a grave concern.

Vessel Detection

MelGAN: Generative Adversarial Networks for Conditional Waveform Synthesis

21 code implementations NeurIPS 2019 Kundan Kumar, Rithesh Kumar, Thibault de Boissiere, Lucas Gestin, Wei Zhen Teoh, Jose Sotelo, Alexandre de Brebisson, Yoshua Bengio, Aaron Courville

In this paper, we show that it is possible to train GANs reliably to generate high quality coherent waveforms by introducing a set of architectural changes and simple training techniques.

Speech Synthesis Translation

Automated retinal vessel segmentation based on morphological preprocessing and 2D-Gabor wavelets

no code implementations12 Aug 2019 Kundan Kumar, Debashisa Samal, Suraj

In this paper, we suggest a new unsupervised retinal blood vessel segmentation approach using top-hat transformation, contrast-limited adaptive histogram equalization (CLAHE), and 2-D Gabor wavelet filters.

Retinal Vessel Segmentation Segmentation

On Difficulties of Probability Distillation

no code implementations27 Sep 2018 Chin-wei Huang, Faruk Ahmed, Kundan Kumar, Alexandre Lacoste, Aaron Courville

Probability distillation has recently been of interest to deep learning practitioners as it presents a practical solution for sampling from autoregressive models for deployment in real-time applications.

Large-Scale Neuromorphic Spiking Array Processors: A quest to mimic the brain

no code implementations23 May 2018 Chetan Singh Thakur, Jamal Molin, Gert Cauwenberghs, Giacomo Indiveri, Kundan Kumar, Ning Qiao, Johannes Schemmel, Runchun Wang, Elisabetta Chicca, Jennifer Olson Hasler, Jae-sun Seo, Shimeng Yu, Yu Cao, André van Schaik, Ralph Etienne-Cummings

Neuromorphic engineering (NE) encompasses a diverse range of approaches to information processing that are inspired by neurobiological systems, and this feature distinguishes neuromorphic systems from conventional computing systems.

ObamaNet: Photo-realistic lip-sync from text

1 code implementation6 Dec 2017 Rithesh Kumar, Jose Sotelo, Kundan Kumar, Alexandre de Brebisson, Yoshua Bengio

We present ObamaNet, the first architecture that generates both audio and synchronized photo-realistic lip-sync videos from any new text.

Constrained Lip-synchronization

On Random Weights for Texture Generation in One Layer Neural Networks

no code implementations19 Dec 2016 Mihir Mongia, Kundan Kumar, Akram Erraqabi, Yoshua Bengio

Recent work in the literature has shown experimentally that one can use the lower layers of a trained convolutional neural network (CNN) to model natural textures.

Texture Synthesis

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