mlsanityData to 14 Oct 2026

Boosting Optical Character Recognition: A Super-Resolution Approach

arXiv 1506.02211 ↗First posted 7 Jun 2015cs.CVcited by 19

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Abstract (arXiv)

Text image super-resolution is a challenging yet open research problem in the computer vision community. In particular, low-resolution images hamper the performance of typical optical character recognition (OCR) systems. In this article, we summarize our entry to the ICDAR2015 Competition on Text Image Super-Resolution. Experiments are based on the provided ICDAR2015 TextSR dataset and the released Tesseract-OCR 3.02 system. We report that our winning entry of text image super-resolution framework has largely improved the OCR performance with low-resolution images used as input, reaching an OCR accuracy score of 77.19%, which is comparable with that of using the original high-resolution images 78.80%.

Key facts. Cited by 19 papers in the map (data through 14 Oct 2026). First posted on arXiv 7 Jun 2015.

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Citing papers per year: 2021: 2; 2022: 2; 2023: 5; 2024: 3; 2025: 7.

19 papers.

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  1. 2021Text Prior Guided Scene Text Image Super-resolutioncited by 37
  2. 2022A Text Attention Network for Spatial Deformation Robust Scene Text Image Super-resolutioncited by 35
  3. 2023Learning Generative Structure Prior for Blind Text Image Super-resolutioncited by 24
  4. 2023A Benchmark for Chinese-English Scene Text Image Super-resolutioncited by 17
  5. 2023Scene Text Image Super-resolution based on Text-conditional Diffusion Modelscited by 15
  6. 2022Scene Text Image Super-Resolution via Content Perceptual Loss and Criss-Cross Transformer Blockscited by 8
  7. 2023Towards Robust Scene Text Image Super-resolution via Explicit Location Enhancementcited by 8
  8. 2024Visual Text Meets Low-level Vision: A Comprehensive Survey on Visual Text Processingcited by 8
  9. 2025Text-Aware Real-World Image Super-Resolution via Diffusion Model with Joint Segmentation Decoderscited by 7
  10. 2025Text-Aware Image Restoration with Diffusion Modelscited by 6
  11. 2023One-stage Low-resolution Text Recognition with High-resolution Knowledge Transfercited by 3
  12. 2025Enhanced Generative Structure Prior for Chinese Text Image Super-resolutioncited by 3
7 more
  1. 2025Restore Text First, Enhance Image Later: Two-Stage Scene Text Image Super-Resolution with Glyph Structure Guidancecited by 3
  2. 2025Unified Diffusion Transformer for High-fidelity Text-Aware Image Restorationcited by 3
  3. 2021An end-to-end Optical Character Recognition approach for ultra-low-resolution printed text imagescited by 1
  4. 2024Efficient scene text image super-resolution with semantic guidancecited by 1
  5. 2024Task-driven single-image super-resolution reconstruction of document scanscited by 1
  6. 2025NCAP: Scene Text Image Super-Resolution with Non-CAtegorical Priorcited by 1
  7. 2025Task-driven real-world super-resolution of document scanscited by 0