Track, Check, Repeat: An EM Approach to Unsupervised Tracking

no code implementations • CVPR 2021 • Adam W. Harley, Yiming Zuo, Jing Wen, Ayush Mangal, Shubhankar Potdar, Ritwick Chaudhry, Katerina Fragkiadaki

We propose an unsupervised method for detecting and tracking moving objects in 3D, in unlabelled RGB-D videos.

Data Augmentation Object Discovery +1

Scene Graph Embeddings Using Relative Similarity Supervision

no code implementations • 6 Apr 2021 • Paridhi Maheshwari, Ritwick Chaudhry, Vishwa Vinay

In this work, we employ a graph convolutional network to exploit structure in scene graphs and produce image embeddings useful for semantic image retrieval.

Contrastive Learning Image Retrieval +1

LEAF-QA: Locate, Encode & Attend for Figure Question Answering

no code implementations • 30 Jul 2019 • Ritwick Chaudhry, Sumit Shekhar, Utkarsh Gupta, Pranav Maneriker, Prann Bansal, Ajay Joshi

LEAF-QA being constructed from real-world sources, requires a novel architecture to enable question answering.

Chart Question Answering Question Answering

Tomographic Reconstruction using Global Statistical Prior

no code implementations • 6 Dec 2017 • Preeti Gopal, Ritwick Chaudhry, Sharat Chandran, Imants Svalbe, Ajit Rajwade

Recent research in tomographic reconstruction is motivated by the need to efficiently recover detailed anatomy from limited measurements.

Anatomy Compressive Sensing