activity
20212026
most citedPriorGrad: Improving Conditional Denoising Diffusion Models with Data-Dependent Adaptive Prior

23 citations · 49 across the 14 of their papers we have counts for

collaborators

15 papers

cs.CL2026

Solar Open 2 Technical Report

Sungrae Park, Sanghoon Kim, Gyoungjin Gim +50

We present Solar Open 2, a 250B-A15B Mixture-of-Experts language model built for long-horizon agentic tasks, scaled up from Solar Open 1 (Solar Open 100B). To hold entire agent tra…

cs.CV2026

Diagnosing and Correcting Concept Omission in Multimodal Diffusion Transformers

Kanghyun Baek, Jaihyun Lew, Chaehun Shin +2

Multimodal Diffusion Transformers (MM-DiTs) have achieved remarkable progress in text-to-image generation, yet they frequently suffer from concept omission, where specified objects…

cs.CV2025

TextGuider: Training-Free Guidance for Text Rendering via Attention Alignment

Kanghyun Baek, Sangyub Lee, Jin Young Choi +6

Despite recent advances, diffusion-based text-to-image models still struggle with accurate text rendering. Several studies have proposed fine-tuning or training-free refinement met…

cs.CV2025

Negative-Guided Subject Fidelity Optimization for Zero-Shot Subject-Driven Generation

Chaehun Shin, Jooyoung Choi, Johan Barthelemy +2

We present Subject Fidelity Optimization (SFO), a novel comparative learning framework for zero-shot subject-driven generation that enhances subject fidelity. Existing supervised f…

cs.CV2024

Large-Scale Text-to-Image Model with Inpainting is a Zero-Shot Subject-Driven Image Generator

Chaehun Shin, Jooyoung Choi, Heeseung Kim +1

Subject-driven text-to-image generation aims to produce images of a new subject within a desired context by accurately capturing both the visual characteristics of the subject and…

cs.CV2024

Style-Friendly SNR Sampler for Style-Driven Generation

Jooyoung Choi, Chaehun Shin, Yeongtak Oh +3

Recent text-to-image diffusion models generate high-quality images but struggle to learn new, personalized styles, which limits the creation of unique style templates. In style-dri…

cs.CV2024

Disentangled Motion Modeling for Video Frame Interpolation

Jaihyun Lew, Jooyoung Choi, Chaehun Shin +2

Video Frame Interpolation (VFI) aims to synthesize intermediate frames between existing frames to enhance visual smoothness and quality. Beyond the conventional methods based on th…

cs.CV2024★ 1 cited

Improving Diffusion-Based Generative Models via Approximated Optimal Transport

Daegyu Kim, Jooyoung Choi, Chaehun Shin +2

We introduce the Approximated Optimal Transport (AOT) technique, a novel training scheme for diffusion-based generative models. Our approach aims to approximate and integrate optim…

cs.CV2023

ControlDreamer: Blending Geometry and Style in Text-to-3D

Yeongtak Oh, Jooyoung Choi, Yongsung Kim +3

Recent advancements in text-to-3D generation have significantly contributed to the automation and democratization of 3D content creation. Building upon these developments, we aim t…

cs.CV2023★ 4 cited

Diffusion-Stego: Training-free Diffusion Generative Steganography via Message Projection

Daegyu Kim, Chaehun Shin, Jooyoung Choi +2

Generative steganography is the process of hiding secret messages in generated images instead of cover images. Existing studies on generative steganography use GAN or Flow models t…

cs.CV2023★ 12 cited

Edit-A-Video: Single Video Editing with Object-Aware Consistency

Chaehun Shin, Heeseung Kim, Che Hyun Lee +2

Despite the fact that text-to-video (TTV) model has recently achieved remarkable success, there have been few approaches on TTV for its extension to video editing. Motivated by app…

cs.CV2022

Out of Sight, Out of Mind: A Source-View-Wise Feature Aggregation for Multi-View Image-Based Rendering

Geonho Cha, Chaehun Shin, Sungroh Yoon +1

To estimate the volume density and color of a 3D point in the multi-view image-based rendering, a common approach is to inspect the consensus existence among the given source image…

cs.CV2022★ 7 cited

Perception Prioritized Training of Diffusion Models

Jooyoung Choi, Jungbeom Lee, Chaehun Shin +3

Diffusion models learn to restore noisy data, which is corrupted with different levels of noise, by optimizing the weighted sum of the corresponding loss terms, i.e., denoising sco…

stat.ML2021★ 23 cited

PriorGrad: Improving Conditional Denoising Diffusion Models with Data-Dependent Adaptive Prior

Sang-gil Lee, Heeseung Kim, Chaehun Shin +7

Denoising diffusion probabilistic models have been recently proposed to generate high-quality samples by estimating the gradient of the data density. The framework defines the prio…

cs.CV2021★ 2 cited

BBAM: Bounding Box Attribution Map for Weakly Supervised Semantic and Instance Segmentation

Jungbeom Lee, Jihun Yi, Chaehun Shin +1

Weakly supervised segmentation methods using bounding box annotations focus on obtaining a pixel-level mask from each box containing an object. Existing methods typically depend on…