Unpaired Image-to-Image Translation

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Overview

Unpaired image-to-image translation studies how to change an image’s appearance or modality when corresponding examples from the two domains are unavailable, enabling applications such as synthetic-to-real adaptation, medical imaging, and day-to-night translation. Methods include cycle-consistent GANs, patch-contrastive learning, and newer diffusion, Schrödinger bridge, and flow-matching approaches, often guided by semantic features or anatomical and geometric constraints. A central challenge is balancing target-domain realism with faithful preservation of objects, anatomy, and other task-relevant structure. Image-level metrics alone may not reveal harmful changes, so evaluation increasingly considers downstream tasks, expert assessment, and uncertainty as well as visual quality.

Latest papers

CardsList

47 papers7 papers in the last four weeks, against 2 the four weeks before. 0.0% of all new papers.

  1. A Hybrid Approach for Closing the Sim2real Appearance Gap in Game Engine Synthetic Datasets

    May 4, 2026Stefanos PasiosImage-to-Image TranslationSim-to-Real Transfer

    independent researcher

  2. DSA-CycleGAN: A Domain Shift Aware CycleGAN for Robust Multi-Stain Glomeruli Segmentation

    Apr 20, 2026Zeeshan Nisar, Friedrich Feuerhake, Thomas LampertImage SegmentationHistopathology Image Segmentation

    ⋆ICube, University of Strasbourg, France · †Institute of Pathology, Hannover Medical School, Germany

  3. AHS: Adaptive Head Synthesis via Synthetic Data Augmentations

    Apr 17, 2026Taewoong Kang, Hyojin Jang, Sohyun Jeong +4Synthetic Data AugmentationUnpaired Image-to-Image Translation

    KAIST · Korea University · FLIPTION

  4. Image-to-Image Translation Framework Embedded with Rotation Symmetry Priors

    Apr 14, 2026Feiyu Tan, Heran Yang, Qihong Duan +3Image-to-Image TranslationUnpaired Image-to-Image Translation

    School of Mathematics and Statistics, Xi’an Jiaotong University, Shaanxi, P.R.China · MOE Key Lab for Intelligent Networks and Networks Security, Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Shaanxi, P.R.China

  5. A Mixture of Experts Foundation Model for Scanning Electron Microscopy Image Analysis

    Apr 7, 2026Sk Miraj Ahmed, Yuewei Lin, Chuntian Cao +9Microscopy Image AnalysisElectron Microscopy

    Computing and Data Sciences, Brookhaven National Laboratory, Upton, 11973, New York, USA. · Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, 11973, New York, USA. · Department of Material Sciences and Engineering, The University of Texas at Dallas, Richardson, 75080, Texas, USA.

  6. Unpaired Cross-Domain Calibration of DMSP to VIIRS Nighttime Light Data Based on CUT Network

    Mar 17, 2026Zhan Tong, ChenXu Zhou, Fei Tang +3Remote SensingUnpaired Image-to-Image Translation

    College of Electrical Engineering, Nanjing Institute of Technology, Nanjing, Jiangsu 210000 · College of Communication Engineering, Nanjing Institute of Technology, Nanjing, Jiangsu 210000 · College of Resource and Environmental, Anhui University, Hefei, Anhui 230601

  7. EarthBridge: A Solution for 4th Multi-modal Aerial View Image Challenge Translation Track

    Mar 6, 2026Zhenyuan Chen, Guanyuan Shen, Feng ZhangImage-to-Image TranslationUnpaired Image-to-Image Translation

    Zhejiang University · University of Science and Technology of China

  8. DMD-augmented Unpaired Neural Schrödinger Bridge for Ultra-Low Field MRI Enhancement

    Mar 4, 2026Youngmin Kim, Jaeyun Shin, Jeongchan Kim +5Magnetic Resonance ImagingUnpaired Image-to-Image Translation

    Korea University, Seoul, Republic of Korea · KAIST, Daejeon, Republic of Korea · NYU Langone Health, New York, NY, USA

  9. RAFM: Retrieval-Augmented Flow Matching for Unpaired CBCT-to-CT Translation

    Feb 28, 2026Xianhao Zhou, Jianghao Wu, Lanfeng Zhong +4Medical Image SynthesisImage-to-Image Translation

    School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu, China · Faculty of Information Technology, Monash University, Melbourne, VIC 3800, Australia · Shanghai Artificial Intelligence Laboratory, Shanghai, China

  10. Structure-to-Image: Zero-Shot Depth Estimation in Colonoscopy via High-Fidelity Sim-to-Real Adaptation

    Feb 25, 2026Juan Yang, Yuyan Zhang, Han Jia +2Monocular Depth EstimationSynthetic-to-Real Domain Adaptation

    College of Computer Science, Sichuan University, Chengdu, China · Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, China

  11. IHF-Harmony: Multi-Modality Magnetic Resonance Images Harmonization using Invertible Hierarchy Flow Model

    Feb 25, 2026Pengli Zhu, Yitao Zhu, Haowen Pang +1Medical Image HarmonizationMagnetic Resonance Imaging

    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong · School of Integrated Circuits and Electronics, Beijing Institute of Technology, China · Mental Health Research Center, The Hong Kong Polytechnic University, Hong Kong +1

  12. Unpaired Image-to-Image Translation via a Self-Supervised Semantic Bridge

    Feb 18, 2026Jiaming Liu, Felix Petersen, Yunhe Gao +6Unpaired Image-to-Image TranslationDiffusion Models

    Stanford University · LLNL · Johns Hopkins University

  13. Bridging Day and Night: Target-Class Hallucination Suppression in Unpaired Image Translation

    Feb 17, 2026Shuwei Li, Lei Tan, Robby T. TanImage-to-Image TranslationUnpaired Image-to-Image Translation

    National University of Singapore · ASUS Intelligent Cloud Services (AICS)

  14. Pro-Pose: Unpaired Full-Body Portrait Synthesis via Canonical UV Maps

    Dec 19, 2025Sandeep Mishra, Yasamin Jafarian, Andreas Lugmayr +5Identity-Preserving Image GenerationUnpaired Image-to-Image Translation

    The University of Texas at Austin, USA · Google, USA

  15. Decoupling Multi-Contrast Super-Resolution: Self-Supervised Implicit Re-Representation for Unpaired Cross-Modal Synthesis

    May 9, 2025Yinzhe Wu, Hongyu Rui, Fanwen Wang +5Medical Image Super-ResolutionUnpaired Image-to-Image Translation

    Department of Bioengineering and I-X, Imperial College London, London SW7 2AZ, United Kingdom · Cardiovascular Research Centre, Royal Brompton Hospital, London, United Kingdom · Bioengineering Department and Imperial-X, Imperial College London, London W12 7SL, U.K. +3

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

    Mar 19, 2025Suhyeon Lee, Kwanyoung Kim, Jong Chul YeImage-to-Image TranslationUnpaired Image-to-Image Translation

    Kim Jae Chul Graduate School of AI, KAIST · Samsung Research

  17. Seed-to-Seed: Unpaired Image Translation in Diffusion Seed Space

    Sep 1, 2024Or Greenberg, Eran Kishon, Dani LischinskiUnpaired Image-to-Image TranslationGenerative Adversarial Networks

    General Motors R&D · The Hebrew University of Jerusalem