Single-Step Bidirectional Unpaired Image Translation Using Implicit Bridge Consistency Distillation

• URL: http://arxiv.org/abs/2503.15056v1
• Date: Wed, 19 Mar 2025 09:48:04 GMT
• Title: Single-Step Bidirectional Unpaired Image Translation Using Implicit Bridge Consistency Distillation
• Authors: Suhyeon Lee, Kwanyoung Kim, Jong Chul Ye,
• Abstract summary: Implicit Bridge Consistency Distillation (IBCD) enables single-step bidirectional unpaired translation without using adversarial loss.<n>IBCD achieves state-of-the-art performance on benchmark datasets in a single generation step.
• Score: 55.45188329646137
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Unpaired image-to-image translation has seen significant progress since the introduction of CycleGAN. However, methods based on diffusion models or Schr\"odinger bridges have yet to be widely adopted in real-world applications due to their iterative sampling nature. To address this challenge, we propose a novel framework, Implicit Bridge Consistency Distillation (IBCD), which enables single-step bidirectional unpaired translation without using adversarial loss. IBCD extends consistency distillation by using a diffusion implicit bridge model that connects PF-ODE trajectories between distributions. Additionally, we introduce two key improvements: 1) distribution matching for consistency distillation and 2) adaptive weighting method based on distillation difficulty. Experimental results demonstrate that IBCD achieves state-of-the-art performance on benchmark datasets in a single generation step. Project page available at https://hyn2028.github.io/project_page/IBCD/index.html

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