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Dilip Krishnan

27 accepted papers

2024

Denoising Vision Transformers

ECCV 2024oral

"We study a crucial yet often overlooked issue inherent to Vision Transformers (ViTs): feature maps of these models exhibit grid-like artifacts (“Original features” in fig:teaser), which hurt the performance of ViTs in downstream dense prediction tasks such as semantic segmentation, depth prediction…

2024

Learning Vision from Models Rivals Learning Vision from Data

CVPR 2024poster

We introduce SynCLR a novel approach for learning visual representations exclusively from synthetic images without any real data. We synthesize a large dataset of image captions using LLMs then use an off-the-shelf text-to-image model to generate multiple images corresponding to each synthetic capti…

2024

Leveraging Unpaired Data for Vision-Language Generative Models via Cycle Consistency

ICLR 2024spotlight

Current vision-language generative models rely on expansive corpora of $\textit{paired}$ image-text data to attain optimal performance and generalization capabilities. However, automatically collecting such data (e.g. via large-scale web scraping) leads to low quality and poor image-text correlation…

2024

Scaling Laws of Synthetic Images for Model Training ... for Now

CVPR 2024poster

Recent significant advances in text-to-image models unlock the possibility of training vision systems using synthetic images potentially overcoming the difficulty of collecting curated data at scale. It is unclear however how these models behave at scale as more synthetic data is added to the traini…

2023

Improving CLIP Training with Language Rewrites

NeurIPS 2023poster

Contrastive Language-Image Pre-training (CLIP) stands as one of the most effective and scalable methods for training transferable vision models using paired image and text data. CLIP models are trained using contrastive loss, which typically relies on data augmentations to prevent overfitting and sh…

2023

MAGE: MAsked Generative Encoder To Unify Representation Learning and Image Synthesis

CVPR 2023poster

Generative modeling and representation learning are two key tasks in computer vision. However, these models are typically trained independently, which ignores the potential for each task to help the other, and leads to training and model maintenance overheads. In this work, we propose MAsked Generat…

2023

Muse: Text-To-Image Generation via Masked Generative Transformers

ICML 2023poster

We present Muse, a text-to-image Transformermodel that achieves state-of-the-art image genera-tion performance while being significantly moreefficient than diffusion or autoregressive models.Muse is trained on a masked modeling task indiscrete token space: given the text embeddingextracted from a pr…

2023

StableRep: Synthetic Images from Text-to-Image Models Make Strong Visual Representation Learners

NeurIPS 2023poster

We investigate the potential of learning visual representations using synthetic images generated by text-to-image models. This is a natural question in the light of the excellent performance of such models in generating high-quality images. We consider specifically the Stable Diffusion, one of the l…

2023

StyleDrop: Text-to-Image Synthesis of Any Style

NeurIPS 2023poster

Pre-trained large text-to-image models synthesize impressive images with an appropriate use of text prompts. However, ambiguities inherent in natural language, and out-of-distribution effects make it hard to synthesize arbitrary image styles, leveraging a specific design pattern, texture or material…

2022

Pyramid Adversarial Training Improves ViT Performance

CVPR 2022oral

Aggressive data augmentation is a key component of the strong generalization capabilities of Vision Transformer (ViT). One such data augmentation technique is adversarial training (AT); however, many prior works have shown that this often results in poor clean accuracy. In this work, we present pyra…

Cited by 69PDFcodeScholar
2021

Understanding Invariance via Feedforward Inversion of Discriminatively Trained Classifiers

ICML 2021spotlight

A discriminatively trained neural net classifier can fit the training data perfectly if all information about its input other than class membership has been discarded prior to the output layer. Surprisingly, past research has discovered that some extraneous visual detail remains in the unnormalized…

Cited by 7SourcePDFScholar
2020

Fantastic Generalization Measures and Where to Find Them

ICLR 2020poster

Generalization of deep networks has been intensely researched in recent years, resulting in a number of theoretical bounds and empirically motivated measures. However, most papers proposing such measures only study a small set of models, leaving open the question of whether these measures are truly…

Cited by 757SourceScholar
2020

Rethinking Few-shot Image Classification: A Good Embedding is All You Need?

ECCV 2020poster

The focus of recent meta-learning research has been on the development of learning algorithms that can quickly adapt to test time tasks with limited data and low computational cost. Few-shot learning is widely used as one of the standard benchmarks in meta-learning. In this work, we show that a simp…

2020

Supervised Contrastive Learning

NeurIPS 2020poster

Contrastive learning applied to self-supervised representation learning has seen a resurgence in recent years, leading to state of the art performance in the unsupervised training of deep image models. Modern batch contrastive approaches subsume or significantly outperform traditional contrastive lo…

2020

What Makes for Good Views for Contrastive Learning?

NeurIPS 2020poster

Contrastive learning between multiple views of the data has recently achieved state of the art performance in the field of self-supervised representation learning. Despite its success, the influence of different view choices has been less studied. In this paper, we use theoretical and empirical anal…

Cited by 1641SourcePDFScholar
2019

Adversarial Robustness through Local Linearization

NeurIPS 2019poster

Adversarial training is an effective methodology for training deep neural networks that are robust against adversarial, norm-bounded perturbations. However, the computational cost of adversarial training grows prohibitively as the size of the model and number of input dimensions increase. Further, t…

Cited by 367SourcePDFScholar
2019

Boundless: Generative Adversarial Networks for Image Extension

ICCV 2019poster

Image extension models have broad applications in image editing, computational photography and computer graphics. While image inpainting has been extensively studied in the literature, it is challenging to directly apply the state-of-the-art inpainting methods to image extension as they tend to gene…

Cited by 124PDFScholar
2019

Predicting the Generalization Gap in Deep Networks with Margin Distributions

ICLR 2019poster

As shown in recent research, deep neural networks can perfectly fit randomly labeled data, but with very poor accuracy on held out data. This phenomenon indicates that loss functions such as cross-entropy are not a reliable indicator of generalization. This leads to the crucial question of how gener…

2018

Large Margin Deep Networks for Classification

NeurIPS 2018poster

We present a formulation of deep learning that aims at producing a large margin classifier. The notion of \emc{margin}, minimum distance to a decision boundary, has served as the foundation of several theoretically profound and empirically successful results for both classification and regression t…

2018

Sparse, Smart Contours to Represent and Edit Images

CVPR 2018poster

We study the problem of reconstructing an image from information stored at contour locations. We show that high-quality reconstructions with high fidelity to the source image can be obtained from sparse input, e.g., comprising less than 6% of image pixels. This is a significant improvement over exis…

Cited by 96SourcePDFScholar
2017

Synthesizing Normalized Faces From Facial Identity Features

CVPR 2017spotlight

We present a method for synthesizing a frontal, neutral-expression image of a person's face, given an input face photograph. This is achieved by learning to generate facial landmarks and textures from features extracted from a facial-recognition network. Unlike previous generative approaches, our en…

Cited by 190PDFScholar
2017

Unsupervised Pixel-Level Domain Adaptation With Generative Adversarial Networks

CVPR 2017oral

Collecting well-annotated image datasets to train modern machine learning algorithms is prohibitively expensive for many tasks. One appealing alternative is rendering synthetic data where ground-truth annotations are generated automatically. Unfortunately, models trained purely on rendered images fa…

Cited by 2021PDFScholar
2016

Domain Separation Networks

NeurIPS 2016poster

The cost of large scale data collection and annotation often makes the application of machine learning algorithms to new tasks or datasets prohibitively expensive. One approach circumventing this cost is training models on synthetic data where annotations are provided automatically. Despite their ap…