Search Results for author: Srirangaraj Setlur

Found 13 papers, 4 papers with code

Deep Metric Learning for Computer Vision: A Brief Overview

no code implementations1 Dec 2023 Deen Dayal Mohan, Bhavin Jawade, Srirangaraj Setlur, Venu Govindaraj

Objective functions that optimize deep neural networks play a vital role in creating an enhanced feature representation of the input data.

Metric Learning

Liveness Detection Competition -- Noncontact-based Fingerprint Algorithms and Systems (LivDet-2023 Noncontact Fingerprint)

no code implementations1 Oct 2023 Sandip Purnapatra, Humaira Rezaie, Bhavin Jawade, Yu Liu, Yue Pan, Luke Brosell, Mst Rumana Sumi, Lambert Igene, Alden Dimarco, Srirangaraj Setlur, Soumyabrata Dey, Stephanie Schuckers, Marco Huber, Jan Niklas Kolf, Meiling Fang, Naser Damer, Banafsheh Adami, Raul Chitic, Karsten Seelert, Vishesh Mistry, Rahul Parthe, Umit Kacar

The competition serves as an important benchmark in noncontact-based fingerprint PAD, offering (a) independent assessment of the state-of-the-art in noncontact-based fingerprint PAD for algorithms and systems, and (b) common evaluation protocol, which includes finger photos of a variety of Presentation Attack Instruments (PAIs) and live fingers to the biometric research community (c) provides standard algorithm and system evaluation protocols, along with the comparative analysis of state-of-the-art algorithms from academia and industry with both old and new android smartphones.

DIOR: Dataset for Indoor-Outdoor Reidentification -- Long Range 3D/2D Skeleton Gait Collection Pipeline, Semi-Automated Gait Keypoint Labeling and Baseline Evaluation Methods

no code implementations21 Sep 2023 Yuyang Chen, Praveen Raj Masilamani, Bhavin Jawade, Srirangaraj Setlur, Karthik Dantu

Additionally, for outdoor long-range settings, we remove the dependency on motion capture systems and adopt a low-cost, hybrid 3D computer vision and learning pipeline with only 4 low-cost RGB cameras, successfully achieving precise skeleton labeling on far-away subjects, even when their height is limited to a mere 20-25 pixels within an RGB frame.

SpaDen : Sparse and Dense Keypoint Estimation for Real-World Chart Understanding

no code implementations3 Aug 2023 Saleem Ahmed, Pengyu Yan, David Doermann, Srirangaraj Setlur, Venu Govindaraju

A combination of sparse and dense per-pixel objectives coupled with a uni-modal self-attention-based feature-fusion layer is applied to learn KP embeddings.

Keypoint Estimation Metric Learning

RealCQA: Scientific Chart Question Answering as a Test-bed for First-Order Logic

1 code implementation3 Aug 2023 Saleem Ahmed, Bhavin Jawade, Shubham Pandey, Srirangaraj Setlur, Venu Govindaraju

We present a comprehensive study of chart visual question-answering(QA) task, to address the challenges faced in comprehending and extracting data from chart visualizations within documents.

Ranked #3 on Chart Question Answering on RealCQA (using extra training data)

Chart Question Answering Formal Logic +2

CoNAN: Conditional Neural Aggregation Network For Unconstrained Face Feature Fusion

no code implementations16 Jul 2023 Bhavin Jawade, Deen Dayal Mohan, Dennis Fedorishin, Srirangaraj Setlur, Venu Govindaraju

Face feature aggregation, which involves aggregating a set of N feature representations present in a template into a single global representation, plays a pivotal role in such recognition systems.

Face Recognition Informativeness

RidgeBase: A Cross-Sensor Multi-Finger Contactless Fingerprint Dataset

1 code implementation9 Jul 2023 Bhavin Jawade, Deen Dayal Mohan, Srirangaraj Setlur, Nalini Ratha, Venu Govindaraju

Contactless fingerprint matching using smartphone cameras can alleviate major challenges of traditional fingerprint systems including hygienic acquisition, portability and presentation attacks.

Hear The Flow: Optical Flow-Based Self-Supervised Visual Sound Source Localization

1 code implementation6 Nov 2022 Dennis Fedorishin, Deen Dayal Mohan, Bhavin Jawade, Srirangaraj Setlur, Venu Govindaraju

Existing work in this area focuses on creating attention maps to capture the correlation between the two modalities to localize the source of the sound.

Optical Flow Estimation

Article citation study: Context enhanced citation sentiment detection

no code implementations10 May 2020 Vishal Vyas, Kumar Ravi, Vadlamani Ravi, V. Uma, Srirangaraj Setlur, Venu Govindaraju

For citation analysis, we developed eight datasets comprising citation sentences, which are manually annotated by us into three sentiment polarities viz.

Feature Engineering Sentiment Analysis +2

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