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Junbum Cha

8 accepted papers

2024

Honeybee: Locality-enhanced Projector for Multimodal LLM

CVPR 2024highlight

In Multimodal Large Language Models (MLLMs) a visual projector plays a crucial role in bridging pre-trained vision encoders with LLMs enabling profound visual understanding while harnessing the LLMs' robust capabilities. Despite the importance of the visual projector it has been relatively less expl…

2023

Learning To Generate Text-Grounded Mask for Open-World Semantic Segmentation From Only Image-Text Pairs

CVPR 2023poster

We tackle open-world semantic segmentation, which aims at learning to segment arbitrary visual concepts in images, by using only image-text pairs without dense annotations. Existing open-world segmentation methods have shown impressive advances by employing contrastive learning (CL) to learn diverse…

2022

Domain Generalization by Mutual-Information Regularization with Pre-trained Models

ECCV 2022poster

"Domain generalization (DG) aims to learn a generalized model to an unseen target domain using only limited source domains. Previous attempts to DG fail to learn domain-invariant representations only from the source domains due to the significant domain shifts between training and test domains. Inst…

2021

Few-shot Font Generation with Localized Style Representations and Factorization

AAAI 2021technical

Automatic few-shot font generation is a practical and widely studied problem because manual designs are expensive and sensitive to the expertise of designers. Existing few-shot font generation methods aim to learn to disentangle the style and content element from a few reference glyphs, and mainly f…

2021

Multiple Heads Are Better Than One: Few-Shot Font Generation With Multiple Localized Experts

ICCV 2021poster

A few-shot font generation (FFG) method has to satisfy two objectives: the generated images should preserve the underlying global structure of the target character and present the diverse local reference style. Existing FFG methods aim to disentangle content and style either by extracting a universa…

Cited by 100PDFcodeScholar
2021

SWAD: Domain Generalization by Seeking Flat Minima

NeurIPS 2021poster

Domain generalization (DG) methods aim to achieve generalizability to an unseen target domain by using only training data from the source domains. Although a variety of DG methods have been proposed, a recent study shows that under a fair evaluation protocol, called DomainBed, the simple empirical r…

2020

Few-shot Compositional Font Generation with Dual Memory

ECCV 2020poster

Generating a new font library is a very labor-intensive and time-consuming job for glyph-rich scripts. Despite the remarkable success of existing font generation methods, they have significant drawbacks; they require a large number of reference images to generate a new font set, or they fail to capt…

2020

Scale down Transformer by Grouping Features for a Lightweight Character-level Language Model

COLING 2020main

This paper introduces a method that efficiently reduces the computational cost and parameter size of Transformer. The proposed model, refer to as Group-Transformer, splits feature space into multiple groups, factorizes the calculation paths, and reduces computations for the group interaction. Extens…