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Tu Bui

11 accepted papers

2025

A Closer Look at Multimodal Representation Collapse

ICML 2025spotlight

We aim to develop a fundamental understanding of modality collapse, a recently observed empirical phenomenon wherein models trained for multimodal fusion tend to rely only on a subset of the modalities, ignoring the rest. We show that modality collapse happens when noisy features from one modality a…

2025

TrustMark: Robust Watermarking and Watermark Removal for Arbitrary Resolution Images

ICCV 2025poster

Imperceptible digital watermarking is important in copyright protection, misinformation prevention, and responsible generative AI. We propose TrustMark - a watermarking method that leverages a spatio-spectral loss function and a 1x1 convolution layer to enhance encoding quality. TrustMark is robust…

2024

ProMark: Proactive Diffusion Watermarking for Causal Attribution

CVPR 2024poster

Generative AI (GenAI) is transforming creative workflows through the capability to synthesize and manipulate images via high-level prompts. Yet creatives are not well supported to receive recognition or reward for the use of their content in GenAI training. To this end we propose ProMark a causal at…

Cited by 14SourcePDFScholar
2024

VIXEN: Visual Text Comparison Network for Image Difference Captioning

AAAI 2024technical

We present VIXEN - a technique that succinctly summarizes in text the visual differences between a pair of images in order to highlight any content manipulation present. Our proposed network linearly maps image features in a pairwise manner, constructing a soft prompt for a pretrained large language…

2023

VADER: Video Alignment Differencing and Retrieval

ICCV 2023poster

We propose VADER, a spatio-temporal matching, alignment, and change summarization method to help fight misinformation spread via manipulated videos. VADER matches and coarsely aligns partial video fragments to candidate videos using a robust visual descriptor and scalable search over adaptively chun…

Cited by 5PDFcodeScholar
2022

CoGS: Controllable Generation and Search from Sketch and Style

ECCV 2022poster

"We present CoGS, a novel method for the style-conditioned, sketch-driven synthesis of images. CoGS enables exploration of diverse appearance possibilities for a given sketched object, enabling decoupled control over the structure and the appearance of the output. Coarse-grained control over object…

2022

RepMix: Representation Mixing for Robust Attribution of Synthesized Images

ECCV 2022poster

"Rapid advances in Generative Adversarial Networks (GANs) raise new challenges for image attribution; detecting whether an image is synthetic and, if so, determining which GAN architecture created it. Uniquely, we present a solution to this task capable of 1) matching images invariant to their seman…

2021

OSCAR-Net: Object-Centric Scene Graph Attention for Image Attribution

ICCV 2021poster

Images tell powerful stories but cannot always be trusted. Matching images back to trusted sources (attribution) enables users to make a more informed judgment of the images they encounter online. We propose a robust image hashing algorithm to perform such matching. Our hash is sensitive to manipula…

Cited by 19PDFScholar
2020

Sketchformer: Transformer-Based Representation for Sketched Structure

CVPR 2020poster

Sketchformer is a novel transformer-based representation for encoding free-hand sketches input in a vector form, i.e. as a sequence of strokes. Sketchformer effectively addresses multiple tasks: sketch classification, sketch based image retrieval (SBIR), and the reconstruction and interpolation of s…

Cited by 161PDFScholar
2017

Sketching With Style: Visual Search With Sketches and Aesthetic Context

ICCV 2017poster

We propose a novel measure of visual similarity for image retrieval that incorporates both structural and aesthetic (style) constraints. Our algorithm accepts a query as sketched shape, and a set of one or more contextual images specifying the desired visual aesthetic. A triplet network is used to l…

Cited by 77PDFScholar