# Semantic Segmentation on COVID-19 1/4 labeled ratio

Source: [Semantic Segmentation on COVID-19 1/4 labeled ratio](<https://www.sota2.com/research/sota/semantic-segmentation-on-covid-19-1-4-labeled-ratio>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2026-04-10T00:51:49.688Z

Evaluation of Semantic Segmentation performance on the COVID-19 dataset subset restricted to a 1/4 labeled ratio, reporting class-specific IoU metrics for COVID-19 lesions (ground-glass, consolidation, pleural effusions) and mean IoU.

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

| Scope | Recorded value |
| --- | --- |
| Task | Semantic Segmentation |
| Dataset (including any stated split) | COVID-19 1/4 labeled ratio |
| Metric | Background IoU |
| Unit | PERCENT |
| Direction | Higher is better |
| Results loaded | 4 of 4 |
| Coverage | All results currently returned for this benchmark |

Evaluation settings may differ between results. The original papers and recorded configurations are needed to establish comparability. A shared metric name alone does not establish an identical protocol.

## Metrics

- [Background IoU](<https://www.sota2.com/research/sota/semantic-segmentation-on-covid-19-1-4-labeled-ratio.md?metric=Background%20IoU>): Higher is better; unit: PERCENT.

- [Ground-Glass IoU](<https://www.sota2.com/research/sota/semantic-segmentation-on-covid-19-1-4-labeled-ratio.md?metric=Ground-Glass%20IoU>): Higher is better; unit: PERCENT.

- [Consolidation IoU](<https://www.sota2.com/research/sota/semantic-segmentation-on-covid-19-1-4-labeled-ratio.md?metric=Consolidation%20IoU>): Higher is better; unit: PERCENT.

- [Pleural Effusions IoU](<https://www.sota2.com/research/sota/semantic-segmentation-on-covid-19-1-4-labeled-ratio.md?metric=Pleural%20Effusions%20IoU>): Higher is better; unit: PERCENT.

- [mIoU](<https://www.sota2.com/research/sota/semantic-segmentation-on-covid-19-1-4-labeled-ratio.md?metric=mIoU>): Higher is better; unit: PERCENT.

## Recorded results

| Method | Background IoU | Result date | Report paper |
| --- | --- | --- | --- |
| SupMix + SUFD | 97.08 | Not recorded | 69d732957d0172140ec76b62 |
| UniMatch | 97.03 | Not recorded | 69d732957d0172140ec76b62 |
| Supervised | 96.78 | Not recorded | 69d732957d0172140ec76b62 |
| FixMatch | 96.65 | Not recorded | 69d732957d0172140ec76b62 |

### SupMix + SUFD

Background IoU: 97.08. Result ID: 69d8498a47f34ce924c08c87.

[Reporting paper](<https://www.sota2.com/research/paper/69d732957d0172140ec76b62.md>)

[Method origin paper](<https://www.sota2.com/research/paper/69d732957d0172140ec76b62.md>)

Recorded evaluation configuration: {"labeled ratio":"1/4","number of labeled images":"18"}. This record does not assert independent reproduction.

### UniMatch

Background IoU: 97.03. Result ID: 69d8498a47f34ce924c08c86.

[Reporting paper](<https://www.sota2.com/research/paper/69d732957d0172140ec76b62.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6ee71e209131cea42c98.md>)

[Implementation](<https://github.com/LiheYoung/UniMatch>)

Recorded evaluation configuration: {"labeled ratio":"1/4","number of labeled images":"18"}. This record does not assert independent reproduction.

### Supervised

Background IoU: 96.78. Result ID: 69d8498a47f34ce924c08c84.

[Reporting paper](<https://www.sota2.com/research/paper/69d732957d0172140ec76b62.md>)

Recorded evaluation configuration: {"labeled ratio":"1/4","number of labeled images":"18"}. This record does not assert independent reproduction.

### FixMatch

Background IoU: 96.65. Result ID: 69d8498a47f34ce924c08c85.

[Reporting paper](<https://www.sota2.com/research/paper/69d732957d0172140ec76b62.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa68d61e209131cea1e896.md>)

Recorded evaluation configuration: {"labeled ratio":"1/4","number of labeled images":"18"}. This record does not assert independent reproduction.

Page 1 of 1. This is an index page, not the full collection.