RIGA: Retinal Fundus Images for Glaucoma Analysis

750 fundus images with optic disc and optic cup segmentations from 6 ophthalmologists per image. Multi-rater benchmark.

At a glance

Field	Value
Short name	riga
Full name	RIGA: Retinal Fundus Images for Glaucoma Analysis
Publication date	Unknown
Date basis	Unknown
Publication date precision	Unknown
Publication date evidence	Unknown
Publication date source field	Unknown
Publication date reviewed	Unknown
Date notes	-
Primary category	fundus
Resource role	current_dataset
Dataset family	riga
Contained modalities	fundus
Tasks	segmentation
Primary reported quantity	750 images
Classes	3 (background, optic_disc, optic_cup)
Splits	all
Size	2.0 GB
Source-stated terms	CC BY-NC 4.0
Normalized terms	cc-by-nc
Descriptive screening label	Explicit noncommercial clause recorded; check source
Terms scope	dataset_files
Access friction	anonymous_direct
Route backend	Direct HTTP
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	750	images	Primary quantity reported in the reviewed catalog source	legacy_catalog_field	deepblue.lib.umich.edu/data

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

Deep Blue provides BinRushed, Magrabi, and MESSIDOR components. Its current documentation directs users to Globus for the large MESSIDOR component.

Documented relationships

These links record source-supported lineage or overlap, not merely similar modality tags.

• fundus_domain_generalization is derived from this record: The official description states that the benchmark is based on the original REFUGE images, now represented by the current REFUGE2 record, plus Drishti-GS, ORIGA, and RIGA. (evidence)
• riga_plus is derived from this record: RIGA+ is built from RIGA components plus the original MESSIDOR resource after duplicate removal. (evidence)

Access information and download

CLI

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

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

Python

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

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

Upstream page: deepblue.lib.umich.edu/data

Source-term evidence: deepblue.lib.umich.edu/data

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{riga,
  title  = { RIGA: Retinal Fundus Images for Glaucoma Analysis },
  note   = { Almazroa et al., 'Retinal Fundus Images for Glaucoma Analysis: The RIGA Dataset', J. Medical Imaging 2018 },
  year   = { 2018 },
  url    = { https://deepblue.lib.umich.edu/data/concern/data_sets/3b591905z },
}

Plain text

Almazroa et al., 'Retinal Fundus Images for Glaucoma Analysis: The RIGA Dataset', J. Medical Imaging 2018.

Source-stated terms

• Raw source string: CC BY-NC 4.0
• Normalized category: cc-by-nc
• Apparent scope: dataset_files
• Descriptive screening label: Explicit noncommercial clause recorded; check source

⚠️ 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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