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NTIRE 2021 Challenge on Video Super-Resolution

arXiv 2104.14852 ↗First posted 30 Apr 2021cs.CVcited by 15

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Abstract (arXiv)

Super-Resolution (SR) is a fundamental computer vision task that aims to obtain a high-resolution clean image from the given low-resolution counterpart. This paper reviews the NTIRE 2021 Challenge on Video Super-Resolution. We present evaluation results from two competition tracks as well as the proposed solutions. Track 1 aims to develop conventional video SR methods focusing on the restoration quality. Track 2 assumes a more challenging environment with lower frame rates, casting spatio-temporal SR problem. In each competition, 247 and 223 participants have registered, respectively. During the final testing phase, 14 teams competed in each track to achieve state-of-the-art performance on video SR tasks.

Key facts. Cited by 15 papers in the map (data through 7 Oct 2026). Builds on 43 of its 67 references that are in the map. First posted on arXiv 30 Apr 2021.

Builds on

43 of 67 references.

References · 43

  1. 2018The Unreasonable Effectiveness of Deep Features as a Perceptual Metriccited by 11,029
  2. 2017Enhanced Deep Residual Networks for Single Image Super-Resolutioncited by 1,543
  3. 2017Deformable Convolutional Networkscited by 1,481
  4. 2015Spatial Transformer Networkscited by 1,423
  5. 2018Image Super-Resolution Using Very Deep Residual Channel Attention Networkscited by 1,256
  6. 2017PWC-Net: CNNs for Optical Flow Using Pyramid, Warping, and Cost Volumecited by 966
  7. 2017Video Enhancement with Task-Oriented Flowcited by 612
  8. 2019EDVR: Video Restoration with Enhanced Deformable Convolutional Networkscited by 492
  9. 2016Optical Flow Estimation using a Spatial Pyramid Networkcited by 421
  10. 2017Super SloMo: High Quality Estimation of Multiple Intermediate Frames for Video Interpolationcited by 321
  11. 2020BasicVSR: The Search for Essential Components in Video Super-Resolution and Beyondcited by 303
  12. 2020Softmax Splatting for Video Frame Interpolationcited by 276
31 more
  1. 2019Depth-Aware Video Frame Interpolationcited by 232
  2. 2018TDAN: Temporally Deformable Alignment Network for Video Super-Resolutioncited by 225
  3. 2017Video Frame Synthesis using Deep Voxel Flowcited by 209
  4. 2017Video Frame Interpolation via Adaptive Convolutioncited by 158
  5. 2016Real-Time Video Super-Resolution with Spatio-Temporal Networks and Motion Compensationcited by 156
  6. 2018Context-aware Synthesis for Video Frame Interpolationcited by 153
  7. 2017Detail-revealing Deep Video Super-resolutioncited by 147
  8. 2019Recurrent Back-Projection Network for Video Super-Resolutioncited by 147
  9. 2019Quadratic video interpolationcited by 143
  10. 2019AdaCoF: Adaptive Collaboration of Flows for Video Frame Interpolationcited by 133
  11. 2020BMBC:Bilateral Motion Estimation with Bilateral Cost Volume for Video Interpolationcited by 117
  12. 2020Video Super-Resolution with Recurrent Structure-Detail Networkcited by 116
  13. 2018MEMC-Net: Motion Estimation and Motion Compensation Driven Neural Network for Video Interpolation and Enhancementcited by 111
  14. 2020FLAVR: Flow-Agnostic Video Representations for Fast Frame Interpolationcited by 97
  15. 2020Zooming Slow-Mo: Fast and Accurate One-Stage Space-Time Video Super-Resolutioncited by 91
  16. 2020MuCAN: Multi-Correspondence Aggregation Network for Video Super-Resolutioncited by 89
  17. 2020Video Super-resolution with Temporal Group Attentioncited by 81
  18. 2018PhaseNet for Video Frame Interpolationcited by 61
  19. 2020Space-Time-Aware Multi-Resolution Video Enhancementcited by 48
  20. 2020Enhanced Quadratic Video Interpolationcited by 48
  21. 2019Unsupervised Video Interpolation Using Cycle Consistencycited by 44
  22. 2020All at Once: Temporally Adaptive Multi-Frame Interpolation with Advanced Motion Modelingcited by 42
  23. 2016Learning Image Matching by Simply Watching Videocited by 41
  24. 2021NTIRE 2021 Challenge on Quality Enhancement of Compressed Video: Methods and Resultscited by 26
  25. 2021NTIRE 2021 Depth Guided Image Relighting Challengecited by 23
  26. 2018Zoom-In-to-Check: Boosting Video Interpolation via Instance-level Discriminationcited by 15
  27. 2020NTIRE 2020 Challenge on Image and Video Deblurringcited by 11
  28. 2021Large Motion Video Super-Resolution with Dual Subnet and Multi-Stage Communicated Upsamplingcited by 9
  29. 2021Efficient Space-time Video Super Resolution using Low-Resolution Flow and Mask Upsamplingcited by 9
  30. 2020AIM 2020 Challenge on Video Temporal Super-Resolutioncited by 5
  31. 2020AIM 2019 Challenge on Video Temporal Super-Resolution: Methods and Resultscited by 3

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Cited by year

Citing papers per year: 2021: 5; 2022: 6; 2023: 2; 2024: 1; 2025: 1.

15 papers.

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  1. 2021NTIRE 2021 Challenge on High Dynamic Range Imaging: Dataset, Methods and Resultscited by 36
  2. 2021NTIRE 2021 Challenge on Burst Super-Resolution: Methods and Resultscited by 22
  3. 2022On the Generalization of BasicVSR++ to Video Deblurring and Denoisingcited by 19
  4. 2021NTIRE 2021 Challenge on Perceptual Image Quality Assessmentcited by 18
  5. 2022Online Video Super-Resolution with Convolutional Kernel Bypass Graftcited by 12
  6. 2023Expanding Synthetic Real-World Degradations for Blind Video Super Resolutioncited by 12
  7. 2021EDPN: Enhanced Deep Pyramid Network for Blurry Image Restorationcited by 9
  8. 2023Scale-Adaptive Feature Aggregation for Efficient Space-Time Video Super-Resolutioncited by 8
  9. 2021NTIRE 2021 Multi-modal Aerial View Object Classification Challengecited by 7
  10. 2022Towards True Detail Restoration for Super-Resolution: A Benchmark and a Quality Metriccited by 5
  11. 2022Priors in Deep Image Restoration and Enhancement: A Surveycited by 3
  12. 2022Deep representation learning: Fundamentals, Perspectives, Applications, and Open Challengescited by 3
3 more
  1. 2024Global Spatial-Temporal Information-based Residual ConvLSTM for Video Space-Time Super-Resolutioncited by 1
  2. 2025ICME 2025 Grand Challenge on Video Super-Resolution for Video Conferencingcited by 1
  3. 2022Fast Online Video Super-Resolution with Deformable Attention Pyramidcited by 0