Implicit Neural Representations

Also known as INR

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Overview

Implicit neural representations (INRs) learn continuous functions from coordinates to values, such as image colors, 3D geometry, motion, or physical measurements. Common approaches use coordinate-based MLPs with sinusoidal or Fourier features, multiresolution grids, tri-planes, or hybrid designs that combine neural decoders with explicit spatial structure. Researchers use them for reconstruction, compression, super-resolution, rendering, and scientific inverse problems, where continuous querying can handle irregular samples and varying resolutions. A central challenge is balancing detail and accuracy against fitting time, memory, and query cost; adaptive representations and learned priors help, but generalization remains task-dependent, and explicit methods can sometimes be more efficient or accurate.

Latest papers

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188 papers25 papers in the last four weeks, up 4% on the four weeks before. 0.1% of all new papers.

  1. Key-Embedded Privacy for Decentralized AI in Biomedical Omics

    Mar 30, 2026Rongyu Zhang, Hongyu Dong, Gaole Dai +13Privacy-Preserving MLFederated Learning

    School of Electronic Science and Engineering, Nanjing University, Nanjing, Jiangsu, 210023, China. · Department of Computing, The Hong Kong Polytechnic University, Hong Kong, 999077, China. · State Key Laboratory of Multimedia Information Processing, Peking University, Beijing, 100871, China. +8

  2. 3-D Representations for Hyperspectral Flame Tomography

    Mar 29, 2026Nicolas Tricard, Zituo Chen, Sili DengComputed TomographyImplicit Neural Representations

    Department of Mechanical Engineering, Massachusetts Institute of Technology 77 Massachusetts Ave, Cambridge, MA 02139, United States

  3. Neural Approximation of Generalized Voronoi Diagrams

    Mar 27, 2026Panagiotis Rigas, George Ioannakis, Ioannis EmirisNeural Surrogate ModelingImplicit Neural Representations

    Department of Informatics & Telecommunications, National and Kapodistrian University of Athens, Greece · Archimedes, Athena Research Center, Greece · Institute for Language and Speech Processing, Athena Research Center, Greece

  4. Low-Rank-Modulated Functa: Exploring the Latent Space of Implicit Neural Representations for Interpretable Ultrasound Video Analysis

    Mar 26, 2026Julia Wolleb, Cristiana Baloescu, Alicia Durrer +2Medical Image Representation LearningImplicit Neural Representations

    Dept. of Biomedical Informatics & Data Science, Yale University, New Haven, USA · Yale Biomedical Imaging Institute, Yale University, New Haven, USA · Department of Emergency Medicine, Yale School of Medicine, New Haven, USA +2

  5. Neural Surface and Reflectance Modelling from 3D Radar Data

    Mar 26, 2026Judith Treffler, Vladimír Kubelka, Henrik Andreasson +1Implicit Neural Representations3D Reconstruction

    The authors are with ARC and the AASS RNP lab, Örebro University, Sweden

  6. Implicit neural representations for larval zebrafish brain microscopy: a reproducible benchmark on the MapZebrain atlas

    Mar 26, 2026Agnieszka PregowskaImplicit Neural RepresentationsImage Reconstruction

    Institute of Fundamental Technological Research Polish Academy of Sciences, Pawinskiego 5B, Warsaw, 02-106, Poland

  7. GeoNDC: A Queryable Neural Data Cube for Planetary-Scale Earth Observation

    Mar 26, 2026Jianbo Qi, Mengyao Li, Baogui Jiang +3Geospatial Representation LearningRemote Sensing

    Advanced Interdisciplinary Institute of Satellite Applications, Beijing Normal University, Beijing 100875, China · State Key Laboratory of Remote Sensing and Digital Earth, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China

  8. Biophysics-Enhanced Neural Representations for Patient-Specific Respiratory Motion Modeling

    Mar 23, 2026Jan Boysen, Hristina Uzunova, Heinz Handels +1Neural Surrogate ModelingMedical Image Analysis

    German Research Center for Artificial Intelligence (DFKI), Lübeck, DE · Clinic for Orthopedics and Orthopedic Surgery, University Medicine Greifswald, Greifswald, DE · Institute of Medical Informatics, University of Lübeck, Lübeck, DE

  9. Unveiling the Mechanism of Continuous Representation Full-Waveform Inversion: A Wave Based Neural Tangent Kernel Framework

    Mar 23, 2026Ruihua Chen, Yisi Luo, Bangyu Wu +1Inverse ProblemsNeural Tangent Kernel

    School of Mathematics and Statistics, Xi’an Jiaotong University, Xi’an, Shaanxi, China · Macao Institute of Systems Engineering, Macau University of Science and Technology, Taipa, Macao

  10. High-fidelity Multi-view Normal Integration with Scale-encoded Neural Surface Representation

    Mar 20, 2026Tongyu Yang, Heng Guo, Yasuyuki Matsushita +3Multi-View 3D Reconstruction3D Mesh Reconstruction

    Dalian University of Technology, China · Beijing University of Posts and Telecommunications, China · Beijing Key Laboratory of Multimodal Data Intelligent Perception and Governance +1

  11. Volumetrically Consistent Implicit Atlas Learning via Neural Diffeomorphic Flow for Placenta MRI

    Mar 17, 2026Athena Taymourtash, S. Mazdak Abulnaga, Esra Abaci Turk +2Medical Image AnalysisMedical Image Registration

    MIT Computer Science and Artificial Intelligence Laboratory · Massachusetts General Hospital, Harvard Medical School · Boston Children’s Hospital, Harvard Medical School

  12. High-Fidelity Compression of Seismic Velocity Models via SIREN Auto-Decoders

    Mar 15, 2026Caiyun Liu, Xiaoxue Luo, Jie XiongSinusoidal Representation NetworksModel Compression

    School of Information and Mathematics, Yangtze University, Jingzhou, Hubei 434023, P.R. China · School of Electronic Information and Electrical Engineering, Yangtze University, Jingzhou, Hubei 434023, P.R. China

  13. NOIR: Neural Operator mapping for Implicit Representations

    Mar 13, 2026Sidaty El Hadramy, Nazim Haouchine, Michael Wehrli +1Neural OperatorsMedical Image Synthesis

    Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland · Harvard Medical School, Brigham and Women’s Hospital, Boston, United States

  14. GENIE: Gram-Eigenmode INR Editing with Closed-Form Geometry Updates

    Mar 12, 2026Samundra Karki, Adarsh Krishnamurthy, Baskar GanapathysubramanianImplicit Neural Representations3D Shape Editing

    Iowa State University, USA

  15. CEI-3D: Collaborative Explicit-Implicit 3D Reconstruction for Realistic and Fine-Grained Object Editing

    Mar 12, 2026Yue Shi, Rui Shi, Yuxuan Xiong +23D Shape Editing3D Reconstruction

    School of Electronics, Information and Electrical Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai, 200240,China.

  16. Neural Field Thermal Tomography: A Differentiable Physics Framework for Non-Destructive Evaluation

    Mar 11, 2026Tao Zhong, Yixun Hu, Dongzhe Zheng +2PDE Inverse ProblemsThermal Imaging

    Princeton University

  17. Factorized Neural Implicit DMD for Parametric Dynamics

    Mar 11, 2026Siyuan Chen, Zhecheng Wang, Yixin Chen +4Dynamical SystemsNeural Surrogate Modeling

    Department of Computer Science, University of British Columbia, Vancouver, Canada · Department of Computer Science, University of Toronto, Toronto, Canada

  18. OSCAR: Occupancy-based Shape Completion via Acoustic Neural Implicit Representations

    Mar 9, 2026Magdalena Wysocki, Kadir Burak Buldu, Miruna-Alexandra Gafencu +2Implicit Neural Representations3D Reconstruction

    Chair for Computer Aided Medical Procedures (CAMP) Technical University of Munich, Boltzmannstr. 3, 85748 Garching, Germany · Munich Center for Machine Learning (MCML), Munich, Germany · Konrad Zuse School of Excellence in Reliable AI (relAI), Germany

  19. SRNeRV: A Scale-wise Recursive Framework for Neural Video Representation

    Mar 9, 2026Jia Wang, Jun Zhu, Xinfeng ZhangParameter SharingImplicit Neural Representations

    School of Computer Science and Technology, University of Chinese Academy of Sciences, Beijing, China

  20. SGI: Structured 2D Gaussians for Efficient and Compact Large Image Representation

    Mar 8, 2026Zixuan Pan, Kaiyuan Tang, Jun Xia +5Gaussian Splatting CompressionGaussian Splatting

    University of Notre Dame · Tohoku University · Leibniz-Institut für Analytische Wissenschaften – ISAS – e.V.

  21. Compression as Adaptation: Implicit Visual Representation with Diffusion Foundation Models

    Mar 8, 2026Zongyu Guo, Jiajun He, Zhaoyang Jia +6Generative Video CompressionVideo Compression

    Microsoft Research Asia · University of Cambridge

  22. Rank-Factorized Implicit Neural Bias: Scaling Super-Resolution Transformer with FlashAttention

    Mar 6, 2026Dongheon Lee, Seokju Yun, Jaegyun Im +1Image Super-ResolutionAttention Mechanisms

    University of Seoul · KAIST AI

  23. WSI-INR: Implicit Neural Representations for Lesion Segmentation in Whole-Slide Images

    Mar 4, 2026Yunheng Wu, Wenqi Huang, Liangyi Wang +4Image SegmentationHistopathology Image Segmentation

    Graduate School of Informatics, Nagoya University, Nagoya, Japan · Chair for AI in Healthcare and Medicine, Technical University of Munich (TUM) and TUM University Hospital, Munich, Germany · School of Computation and Information Technology, Technical University of Munich, Munich, Germany +4

  24. Neural Implicit Action Fields: From Discrete Waypoints to Continuous Functions for Vision-Language-Action Models

    Mar 2, 2026Haoyun Liu, Jianzhuang Zhao, Xinyuan Chang +11Vision-Language-Action ModelsVisuomotor Policy Learning

    State Key Laboratory for Novel Software Technology, Nanjing University · Faculty of Computility Microelectronics, Shenzhen University of Advanced Technology · Amap, Alibaba Group +5

  25. Tackling multiphysics problems via finite element-guided physics-informed operator learning

    Mar 2, 2026Yusuke Yamazaki, Reza Najian Asl, Markus Apel +2Multiphysics SimulationPhysics-Informed Neural Operators

    Graduate School of Science and Technology, Keio University, Hiyoshi3-14-1,Kohoku-ku, Yokohama 223-8522, Japan · Chair of Structural Analysis, Technical University of Munich, Arcisstraße 21, 80333 Munich, Germany · ACCESS e.V., Intzestr. 5, 52072 Aachen, Germany +1

  26. Content-Aware Frequency Encoding for Implicit Neural Representations with Fourier-Chebyshev Features

    Mar 1, 2026Junbo Ke, Yangyang Xu, You-Wei Wen +1Implicit Neural RepresentationsFourier Feature Embeddings

    School of Mathematics and Statistics, Hunan Normal University · Department of Statistics and Data Science, Southern University of Science and Technology

  27. Hybrid-PCGC: Hybrid Point Cloud Geometry Compression Bridging Generalization-based Model and Implicit Neural Representation

    Feb 25, 2026Wenjie Huang, Qi Yang, Shuting Xia +3Point Cloud CompressionImplicit Neural Representations

    Shanghai Jiao Tong University · University of Missouri-Kansas City

  28. Learning Positive-Incentive Point Sampling in Neural Implicit Fields for Object Pose Estimation

    Feb 23, 2026Yifei Shi, Boyan Wan, Xin Xu +1Object Pose EstimationImplicit Neural Representations

    College of Intelligence Science and Technology, National University of Defense Technology, China · College of Computer Science, National University of Defense Technology, China

  29. Neural Implicit Representations for 3D Synthetic Aperture Radar Imaging

    Feb 19, 2026Nithin Sugavanam, Emre ErtinSynthetic Aperture Radar3D Reconstruction

    Ohio State University, Columbus, OH 43210, USA

  30. TeCoNeRV: Leveraging Temporal Coherence for Compressible Neural Representations for Videos

    Feb 18, 2026Namitha Padmanabhan, Matthew Gwilliam, Abhinav ShrivastavaNeural Video CompressionImplicit Neural Representations

    Department of Computer Science, University of Maryland, College Park, USA.