Real Fundus Clinical Image Restoration Benchmark

One hundred twenty paired low quality and high quality clinical fundus photographs of the same eyes at 2560 by 2560 pixels for image restoration and enhancement research.

At a glance

Field	Value
Short name	real_fundus
Full name	Real Fundus Clinical Image Restoration Benchmark
First published	2022-07-04
Publication date precision	day
Publication date evidence	github.com/dengzhuo-AI
Publication date source field	Official GitHub release: published_at
Publication date reviewed	2026-09-11
Primary category	fundus
Resource role	current_dataset
Dataset family	real_fundus
Contained modalities	fundus
Tasks	restoration
Primary reported quantity	120 image pairs
Classes	Not reported (Not reported)
Splits	all
Size	1.02 GB
Source-stated terms	Unknown; no dataset license declared in the repository
Normalized terms	unknown
Descriptive screening label	Unknown or unclear; do not assume permission
Terms scope	unknown
Access friction	anonymous_direct
Route backend	Manual (upstream-gated)
Availability	available (checked 2026-07-21)
Acquisition support	guided_instructions_only
Legacy sample-loader status	Metadata and access only

Reported quantities

Role	Count	Unit	Scope	Basis	Evidence
Primary	120	image_pairs	Matched low-quality and high-quality fundus pairs	official_source_description	github.com/dengzhuo-AI
Additional	240	images	Images participating in 120 restoration pairs	derived_from_reported_components	github.com/dengzhuo-AI

Counts retain their source-reported units. Additional rows can describe components, paired items, or derivative copies and are not automatically added to the primary quantity.

Notes

The public GitHub release contains the image archive. The paper describes a random 81/9/30 experimental split, but the release does not define distributed train, validation, and test partitions. No license file or dataset use terms were found.

Access information and download

CLI

# Read-only preflight
eyehub download real_fundus --data-dir ./data --dry-run --json

# Download, only when preflight reports supported behavior
eyehub download real_fundus --data-dir ./data

Python

from eyedatahub.acquisition import preflight_dataset
from eyedatahub.datasets.registry import REGISTRY

ds = REGISTRY.get_dataset('real_fundus')
print(preflight_dataset(ds, './data'))  # no download

Upstream page: github.com/dengzhuo-AI

Source-term evidence: github.com/dengzhuo-AI

Loader status

This catalog record provides metadata and access instructions, but it does not yet include a standard DatasetSample loader. Inspect the source file structure or contribute a loader before using it in a training pipeline.

Citation

BibTeX

@misc{real_fundus,
  title  = { Real Fundus Clinical Image Restoration Benchmark },
  note   = { Deng Z, Cai Y, Chen L, et al. RFormer: Transformer-based generative adversarial network for real fundus image restoration on a new clinical benchmark. IEEE J Biomed Health Inform. 2022;26:4645-4655. doi:10.1109/JBHI.2022.3187103 },
  year   = { 2022 },
  url    = { https://github.com/dengzhuo-AI/Real-Fundus/releases/tag/v.1.0.0 },
}

Plain text

Deng Z, Cai Y, Chen L, et al. RFormer: Transformer-based generative adversarial network for real fundus image restoration on a new clinical benchmark. IEEE J Biomed Health Inform. 2022;26:4645-4655. doi:10.1109/JBHI.2022.3187103

Source-stated terms

• Raw source string: Unknown; no dataset license declared in the repository
• Normalized category: unknown
• Apparent scope: unknown
• Descriptive screening label: Unknown or unclear; do not assume permission

⚠️ Source-stated terms, scope, and normalized labels are curation metadata, not legal advice or a permission finding. Review the current official source before transfer or reuse.

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