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20232025
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cs.CV2025

3D-Aware Vision-Language Models Fine-Tuning with Geometric Distillation

Seonho Lee, Jiho Choi, Inha Kang +3

Vision-Language Models (VLMs) have shown remarkable performance on diverse visual and linguistic tasks, yet they remain fundamentally limited in their understanding of 3D spatial s…

cs.CV2025

Rethinking Direct Preference Optimization in Diffusion Models

Junyong Kang, Seohyun Lim, Kyungjune Baek +1

Aligning text-to-image (T2I) diffusion models with human preferences has emerged as a critical research challenge. While recent advances in this area have extended preference optim…

cs.CV2025

DGQ: Distribution-Aware Group Quantization for Text-to-Image Diffusion Models

Hyogon Ryu, NaHyeon Park, Hyunjung Shim

Despite the widespread use of text-to-image diffusion models across various tasks, their computational and memory demands limit practical applications. To mitigate this issue, quan…

cs.CV2025

Fine-Grained Image-Text Correspondence with Cost Aggregation for Open-Vocabulary Part Segmentation

Jiho Choi, Seonho Lee, Minhyun Lee +2

Open-Vocabulary Part Segmentation (OVPS) is an emerging field for recognizing fine-grained parts in unseen categories. We identify two primary challenges in OVPS: (1) the difficult…

cs.CV2024

MomentMix Augmentation with Length-Aware DETR for Temporally Robust Moment Retrieval

Seojeong Park, Jiho Choi, Kyungjune Baek +1

Video Moment Retrieval (MR) aims to localize moments within a video based on a given natural language query. Given the prevalent use of platforms like YouTube for information retri…

cs.CV2024

MaskRIS: Semantic Distortion-aware Data Augmentation for Referring Image Segmentation

Minhyun Lee, Seungho Lee, Song Park +3

Referring Image Segmentation (RIS) is an advanced vision-language task that involves identifying and segmenting objects within an image as described by free-form text descriptions.…

cs.CV2024

Learning from Spatio-temporal Correlation for Semi-Supervised LiDAR Semantic Segmentation

Seungho Lee, Hwijeong Lee, Hyunjung Shim

We address the challenges of the semi-supervised LiDAR segmentation (SSLS) problem, particularly in low-budget scenarios. The two main issues in low-budget SSLS are the poor-qualit…

cs.CV2024

Scribble-Guided Diffusion for Training-free Text-to-Image Generation

Seonho Lee, Jiho Choi, Seohyun Lim +2

Recent advancements in text-to-image diffusion models have demonstrated remarkable success, yet they often struggle to fully capture the user's intent. Existing approaches using te…

cs.CV2024

DreamCatalyst: Fast and High-Quality 3D Editing via Controlling Editability and Identity Preservation

Jiwook Kim, Seonho Lee, Jaeyo Shin +2

Score distillation sampling (SDS) has emerged as an effective framework in text-driven 3D editing tasks, leveraging diffusion models for 3D-consistent editing. However, existing SD…

cs.CV2024

Understanding Multi-Granularity for Open-Vocabulary Part Segmentation

Jiho Choi, Seonho Lee, Seungho Lee +2

Open-vocabulary part segmentation (OVPS) is an emerging research area focused on segmenting fine-grained entities using diverse and previously unseen vocabularies. Our study highli…

cs.CV2024

Latent Inversion with Timestep-aware Sampling for Training-free Non-rigid Editing

Yunji Jung, Seokju Lee, Tair Djanibekov +2

Text-guided non-rigid editing involves complex edits for input images, such as changing motion or compositions within their surroundings. Since it requires manipulating the input s…

cs.CV2024

Self-Supervised Vision Transformers Are Efficient Segmentation Learners for Imperfect Labels

Seungho Lee, Seoungyoon Kang, Hyunjung Shim

This study demonstrates a cost-effective approach to semantic segmentation using self-supervised vision transformers (SSVT). By freezing the SSVT backbone and training a lightweigh…

cs.CV2024

Memory-Efficient Fine-Tuning for Quantized Diffusion Model

Hyogon Ryu, Seohyun Lim, Hyunjung Shim

The emergence of billion-parameter diffusion models such as Stable Diffusion XL, Imagen, and DALL-E 3 has significantly propelled the domain of generative AI. However, their large-…

cs.CV2023

SeiT++: Masked Token Modeling Improves Storage-efficient Training

Minhyun Lee, Song Park, Byeongho Heo +2

Recent advancements in Deep Neural Network (DNN) models have significantly improved performance across computer vision tasks. However, achieving highly generalizable and high-perfo…