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Viraj Uday Prabhu

5 accepted papers

2024

AUGCAL: Improving Sim2Real Adaptation by Uncertainty Calibration on Augmented Synthetic Images

ICLR 2024poster

Synthetic data (Sim) drawn from simulators have emerged as a popular alternativefor training models where acquiring annotated real-world images is difficult. However, transferring models trained on synthetic images to real-world applicationscan be challenging due to appearance disparities. A commonl…

Cited by 0SourcePDFScholar
2024

Transferring Labels to Solve Annotation Mismatches Across Object Detection Datasets

ICLR 2024poster

In object detection, varying annotation protocols across datasets can result in annotation mismatches, leading to inconsistent class labels and bounding regions. Addressing these mismatches typically involves manually identifying common trends and fixing the corresponding bounding boxes and class la…

Cited by 1SourcePDFScholar
2023

Battle of the Backbones: A Large-Scale Comparison of Pretrained Models across Computer Vision Tasks

NeurIPS 2023poster

Neural network based computer vision systems are typically built on a backbone, a pretrained or randomly initialized feature extractor. Several years ago, the default option was an ImageNet-trained convolutional neural network. However, the recent past has seen the emergence of countless backbones…

2023

LANCE: Stress-testing Visual Models by Generating Language-guided Counterfactual Images

NeurIPS 2023poster

We propose an automated algorithm to stress-test a trained visual model by generating language-guided counterfactual test images (LANCE). Our method leverages recent progress in large language modeling and text-based image editing to augment an IID test set with a suite of diverse, realistic, and ch…

2022

Adapting Self-Supervised Vision Transformers by Probing Attention-Conditioned Masking Consistency

NeurIPS 2022accept

Visual domain adaptation (DA) seeks to transfer trained models to unseen, unlabeled domains across distribution shift, but approaches typically focus on adapting convolutional neural network architectures initialized with supervised ImageNet representations. In this work, we shift focus to adapting…