# Object Detection on VOC (unseen classes)

Source: [Object Detection on VOC (unseen classes)](<https://www.sota2.com/research/sota/object-detection-on-voc-unseen-classes>)

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

Data updated: 2026-02-26T05:23:36.899Z

Evaluation of Object Detection performance on the PASCAL VOC dataset, specifically focusing on metrics related to unseen or novel classes, utilizing Average Recall (AR) metrics.

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 | Object Detection |
| Dataset (including any stated split) | VOC (unseen classes) |
| Metric | AR@1000 (Overall) |
| Unit | PERCENT |
| Direction | Higher is better |
| Results loaded | 11 of 11 |
| 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

- [AR@1000 (Overall)](<https://www.sota2.com/research/sota/object-detection-on-voc-unseen-classes.md?metric=AR%401000%20(Overall)>): Higher is better; unit: PERCENT.

- [AR@1000 (Easy)](<https://www.sota2.com/research/sota/object-detection-on-voc-unseen-classes.md?metric=AR%401000%20(Easy)>): Higher is better; unit: PERCENT.

- [AR@1000 (Medium)](<https://www.sota2.com/research/sota/object-detection-on-voc-unseen-classes.md?metric=AR%401000%20(Medium)>): Higher is better; unit: PERCENT.

- [AR@1000 (Hard)](<https://www.sota2.com/research/sota/object-detection-on-voc-unseen-classes.md?metric=AR%401000%20(Hard)>): Higher is better; unit: PERCENT.

## Recorded results

| Method | AR@1000 (Overall) | Result date | Report paper |
| --- | --- | --- | --- |
| SSD-ag-ad | 72.2 | Not recorded | 68fa68da1e209131cea1eb24 |
| SSD-ag | 70.2 | Not recorded | 68fa68da1e209131cea1eb24 |
| SSD-ft-ag-ad | 68.3 | Not recorded | 68fa68da1e209131cea1eb24 |
| SSD-ft-ag | 67.1 | Not recorded | 68fa68da1e209131cea1eb24 |
| SSD-aw | 66.3 | Not recorded | 68fa68da1e209131cea1eb24 |
| FRCNN-ag-ad | 60.1 | Not recorded | 68fa68da1e209131cea1eb24 |
| FRCNN-ag | 59.6 | Not recorded | 68fa68da1e209131cea1eb24 |
| FRCNN-aw | 54.5 | Not recorded | 68fa68da1e209131cea1eb24 |
| FRCNN-ft-ag-ad | 52.8 | Not recorded | 68fa68da1e209131cea1eb24 |
| FRCNN-ft-ag | 38.2 | Not recorded | 68fa68da1e209131cea1eb24 |
| FRCNN-aw-prop | 37.4 | Not recorded | 68fa68da1e209131cea1eb24 |

### SSD-ag-ad

AR@1000 (Overall): 72.2. Result ID: 698d89898b517eb4332238dc.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68da1e209131cea1eb24.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa68da1e209131cea1eb24.md>)

Recorded evaluation configuration: {"Base Architecture":"SSD","Class Awareness":"Agnostic","Training Protocol":"Scratch","Training Method":"Adversarial"}. This record does not assert independent reproduction.

### SSD-ag

AR@1000 (Overall): 70.2. Result ID: 698d89898b517eb4332238da.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68da1e209131cea1eb24.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa63091e209131ce9fc889.md>)

[Implementation](<https://github.com/weiliu89/caffe/tree/ssd>)

Recorded evaluation configuration: {"Base Architecture":"SSD","Class Awareness":"Agnostic","Training Protocol":"Scratch"}. This record does not assert independent reproduction.

### SSD-ft-ag-ad

AR@1000 (Overall): 68.3. Result ID: 698d89898b517eb4332238db.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68da1e209131cea1eb24.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa68da1e209131cea1eb24.md>)

Recorded evaluation configuration: {"Base Architecture":"SSD","Class Awareness":"Agnostic","Training Protocol":"Fine-tuned from class-aware baseline","Training Method":"Adversarial"}. This record does not assert independent reproduction.

### SSD-ft-ag

AR@1000 (Overall): 67.1. Result ID: 698d89898b517eb4332238d9.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68da1e209131cea1eb24.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa63091e209131ce9fc889.md>)

[Implementation](<https://github.com/weiliu89/caffe/tree/ssd>)

Recorded evaluation configuration: {"Base Architecture":"SSD","Class Awareness":"Agnostic","Training Protocol":"Fine-tuned from class-aware baseline"}. This record does not assert independent reproduction.

### SSD-aw

AR@1000 (Overall): 66.3. Result ID: 698d89898b517eb4332238d8.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68da1e209131cea1eb24.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa63091e209131ce9fc889.md>)

[Implementation](<https://github.com/weiliu89/caffe/tree/ssd>)

Recorded evaluation configuration: {"Base Architecture":"SSD","Class Awareness":"Aware"}. This record does not assert independent reproduction.

### FRCNN-ag-ad

AR@1000 (Overall): 60.1. Result ID: 698d89898b517eb4332238d7.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68da1e209131cea1eb24.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa68da1e209131cea1eb24.md>)

Recorded evaluation configuration: {"Base Architecture":"FRCNN","Class Awareness":"Agnostic","Training Protocol":"Scratch","Training Method":"Adversarial"}. This record does not assert independent reproduction.

### FRCNN-ag

AR@1000 (Overall): 59.6. Result ID: 698d89898b517eb4332238d5.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68da1e209131cea1eb24.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa62451e209131ce9f8655.md>)

[Implementation](<https://github.com/shaoqingren/faster_rcnn>)

Recorded evaluation configuration: {"Base Architecture":"FRCNN","Class Awareness":"Agnostic","Training Protocol":"Scratch"}. This record does not assert independent reproduction.

### FRCNN-aw

AR@1000 (Overall): 54.5. Result ID: 698d89898b517eb4332238d3.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68da1e209131cea1eb24.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa62451e209131ce9f8655.md>)

[Implementation](<https://github.com/shaoqingren/faster_rcnn>)

Recorded evaluation configuration: {"Base Architecture":"FRCNN","Class Awareness":"Aware"}. This record does not assert independent reproduction.

### FRCNN-ft-ag-ad

AR@1000 (Overall): 52.8. Result ID: 698d89898b517eb4332238d6.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68da1e209131cea1eb24.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa68da1e209131cea1eb24.md>)

Recorded evaluation configuration: {"Base Architecture":"FRCNN","Class Awareness":"Agnostic","Training Protocol":"Fine-tuned from class-aware baseline","Training Method":"Adversarial"}. This record does not assert independent reproduction.

### FRCNN-ft-ag

AR@1000 (Overall): 38.2. Result ID: 698d89898b517eb4332238d4.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68da1e209131cea1eb24.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa62451e209131ce9f8655.md>)

[Implementation](<https://github.com/shaoqingren/faster_rcnn>)

Recorded evaluation configuration: {"Base Architecture":"FRCNN","Class Awareness":"Agnostic","Training Protocol":"Fine-tuned from class-aware baseline"}. This record does not assert independent reproduction.

### FRCNN-aw-prop

AR@1000 (Overall): 37.4. Result ID: 698d89898b517eb4332238d2.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68da1e209131cea1eb24.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa62451e209131ce9f8655.md>)

[Implementation](<https://github.com/shaoqingren/faster_rcnn>)

Recorded evaluation configuration: {"Base Architecture":"FRCNN","Class Awareness":"Aware","Evaluation Stage":"First-stage Region Proposal Network"}. This record does not assert independent reproduction.

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