no code implementations • 20 Sep 2024 • Steven Grosz, Rui Zhao, Rajeev Ranjan, Hongcheng Wang, Manoj Aggarwal, Gerard Medioni, Anil Jain
This paper improves upon existing data pruning methods for image classification by introducing a novel pruning metric and pruning procedure based on importance sampling.
no code implementations • 25 Oct 2022 • Steven A. Grosz, Joshua J. Engelsma, Rajeev Ranjan, Naveen Ramakrishnan, Manoj Aggarwal, Gerard G. Medioni, Anil K. Jain
We further demonstrate that by guiding the ViT to focus in on local, minutiae related features, we can boost the recognition performance.
no code implementations • 28 Dec 2018 • Matthew Q. Hill, Connor J. Parde, Carlos D. Castillo, Y. Ivette Colon, Rajeev Ranjan, Jun-Cheng Chen, Volker Blanz, Alice J. O'Toole
Deep convolutional neural networks (DCNNs) also create generalizable face representations, but with cascades of simulated neurons.
no code implementations • 10 Dec 2018 • Jingxiao Zheng, Rajeev Ranjan, Ching-Hui Chen, Jun-Cheng Chen, Carlos D. Castillo, Rama Chellappa
In this work, we consider challenging scenarios for unconstrained video-based face recognition from multiple-shot videos and surveillance videos with low-quality frames.
no code implementations • 20 Nov 2018 • Joshua Gleason, Rajeev Ranjan, Steven Schwarcz, Carlos D. Castillo, Jun-Chen Cheng, Rama Chellappa
In this paper, we present a modular system for spatio-temporal action detection in untrimmed security videos.
no code implementations • 20 Sep 2018 • Rajeev Ranjan, Ankan Bansal, Jingxiao Zheng, Hongyu Xu, Joshua Gleason, Boyu Lu, Anirudh Nanduri, Jun-Cheng Chen, Carlos D. Castillo, Rama Chellappa
We provide evaluation results of the proposed face detector on challenging unconstrained face detection datasets.
no code implementations • 1 May 2018 • Deepak Mishra, Rajeev Ranjan, Santanu Chaudhury, Mukul Sarkar, Arvinder Singh Soin
These approaches require object-centric images to perform matching.
no code implementations • 23 Apr 2018 • Rajeev Ranjan, Shalini De Mello, Jan Kautz
Unconstrained remote gaze tracking using off-the-shelf cameras is a challenging problem.
no code implementations • 3 Apr 2018 • Rajeev Ranjan, Ankan Bansal, Hongyu Xu, Swami Sankaranarayanan, Jun-Cheng Chen, Carlos D. Castillo, Rama Chellappa
We show that integrating this simple step in the training pipeline significantly improves the performance of face verification and recognition systems.
no code implementations • 3 Dec 2017 • Rajeev Ranjan, Swami Sankaranarayanan, Carlos D. Castillo, Rama Chellappa
In particular, we show that learning features in a closed and bounded space improves the robustness of the network.
no code implementations • 21 May 2017 • Ankan Bansal, Carlos Castillo, Rajeev Ranjan, Rama Chellappa
While the research community appears to have developed a consensus on the methods of acquiring annotated data, design and training of CNNs, many questions still remain to be answered.
1 code implementation • 28 Mar 2017 • Rajeev Ranjan, Carlos D. Castillo, Rama Chellappa
In recent years, the performance of face verification systems has significantly improved using deep convolutional neural networks (DCNNs).
Ranked #4 on Face Verification on IJB-A
1 code implementation • 4 Nov 2016 • Ankan Bansal, Anirudh Nanduri, Carlos Castillo, Rajeev Ranjan, Rama Chellappa
Recent progress in face detection (including keypoint detection), and recognition is mainly being driven by (i) deeper convolutional neural network architectures, and (ii) larger datasets.
1 code implementation • 3 Nov 2016 • Rajeev Ranjan, Swami Sankaranarayanan, Carlos D. Castillo, Rama Chellappa
The proposed method employs a multi-task learning framework that regularizes the shared parameters of CNN and builds a synergy among different domains and tasks.
Ranked #9 on Face Verification on IJB-A
no code implementations • 9 May 2016 • Jun-Cheng Chen, Rajeev Ranjan, Swami Sankaranarayanan, Amit Kumar, Ching-Hui Chen, Vishal M. Patel, Carlos D. Castillo, Rama Chellappa
Over the last five years, methods based on Deep Convolutional Neural Networks (DCNNs) have shown impressive performance improvements for object detection and recognition problems.
2 code implementations • 3 Mar 2016 • Rajeev Ranjan, Vishal M. Patel, Rama Chellappa
We present an algorithm for simultaneous face detection, landmarks localization, pose estimation and gender recognition using deep convolutional neural networks (CNN).
Ranked #2 on Face Detection on Annotated Faces in the Wild
no code implementations • 29 Jan 2016 • Amit Kumar, Rajeev Ranjan, Vishal Patel, Rama Chellappa
We also present a face alignment algorithm based on regression using these local descriptors.
no code implementations • 28 Jan 2016 • Rama Chellappa, Jun-Cheng Chen, Rajeev Ranjan, Swami Sankaranarayanan, Amit Kumar, Vishal M. Patel, Carlos D. Castillo
In this paper, we present a brief history of developments in computer vision and artificial neural networks over the last forty years for the problem of image-based recognition.
no code implementations • 18 Aug 2015 • Rajeev Ranjan, Vishal M. Patel, Rama Chellappa
We present a face detection algorithm based on Deformable Part Models and deep pyramidal features.