Search Results for author: Chaehun Shin

Found 8 papers, 4 papers with code

Improving Diffusion-Based Generative Models via Approximated Optimal Transport

1 code implementation8 Mar 2024 Daegyu Kim, Jooyoung Choi, Chaehun Shin, Uiwon Hwang, Sungroh Yoon

Our approach aims to approximate and integrate optimal transport into the training process, significantly enhancing the ability of diffusion models to estimate the denoiser outputs accurately.

Image Generation

ControlDreamer: Stylized 3D Generation with Multi-View ControlNet

no code implementations2 Dec 2023 Yeongtak Oh, Jooyoung Choi, Yongsung Kim, MinJun Park, Chaehun Shin, Sungroh Yoon

Recent advancements in text-to-3D generation have significantly contributed to the automation and democratization of 3D content creation.

3D Generation text-guided-generation +1

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

no code implementations30 May 2023 Daegyu Kim, Chaehun Shin, Jooyoung Choi, Dahuin Jung, Sungroh Yoon

Diffusion-Stego achieved a high capacity of messages (3. 0 bpp of binary messages with 98% accuracy, and 6. 0 bpp with 90% accuracy) as well as high quality (with a FID score of 2. 77 for 1. 0 bpp on the FFHQ 64$\times$64 dataset) that makes it challenging to distinguish from real images in the PNG format.

Denoising Image Generation

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

no code implementations14 Mar 2023 Chaehun Shin, Heeseung Kim, Che Hyun Lee, Sang-gil Lee, Sungroh Yoon

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.

Video Editing

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

no code implementations10 Jun 2022 Geonho Cha, Chaehun Shin, Sungroh Yoon, Dongyoon Wee

Finally, for each element in the feature set, the aggregation features are extracted by calculating the weighted means and variances, where the weights are derived from the similarity distributions.

Perception Prioritized Training of Diffusion Models

5 code implementations CVPR 2022 Jooyoung Choi, Jungbeom Lee, Chaehun Shin, Sungwon Kim, Hyunwoo Kim, Sungroh Yoon

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 score matching loss.

Denoising

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