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shreshthsaini
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Model Details
Model Provider
shreshthsaini
Model Tree
Qwen/Qwen2.5-VL-7B-Instruct
Input Modalities
Output Modalities
Supported Functionality
Qwen/Qwen2.5-VL-7B-Instruct
Eight uniformly sampled HDR frames are tone-mapped to an SDR proxy and passed in temporal order.
Five adapters were trained independently on the five content-separated BrightVQ splits. Training uses two epochs, a three-epoch cosine schedule horizon, learning rate 1e-4, micro-batch 1, gradient accumulation 8, and rank-16 LoRA with alpha 32 and dropout 0.05. MOS targets are interpolated across five quality words. The root adapter is split 0; splits/split-1 through split-4 contain the remaining adapters.
Training data: BrightVQ.
Held-out metrics for the five 420-video test splits:
| Split | SROCC | PLCC | KRCC | RMSE |
|---|---|---|---|---|
| 0 | 0.9051 | 0.9109 | 0.7269 | 5.7100 |
| 1 | 0.9203 | 0.9111 | 0.7495 | 5.5797 |
| 2 | 0.9084 | 0.9273 | 0.7341 | 5.2066 |
| 3 | 0.8741 | 0.8924 | 0.6841 | 6.1060 |
| 4 | 0.8816 | 0.8965 |
This adapter is intended for research on no-reference perceptual quality assessment of user-generated HDR video. Scores are not calibrated for other datasets, display pipelines, or video domains.
Code and input construction are available in BrightRate-LM.
bibtex
@article{saini2026brightratelm,title = {BrightRate-LM: Representation-Aware Quality Assessment for User-Generated HDR Video},author = {Saini, Shreshth and Wang, Yilin and Birkbeck, Neil and Adsumilli, Balu and Bovik, Alan C.},journal = {Machine Vision and Applications},year = {2026},note = {Submitted}}
Code and evaluation: github.com/shreshthsaini/BrightRate-LM. Dataset: BrightVQ on Hugging Face. Related papers: Beyond8Bits, CVPR 2026 (arXiv 2603.00938) and CHUG, ICIP 2025 (arXiv 2510.09879).
| 0.6993 |
| 5.6452 |
| Mean | 0.8979 | 0.9077 | 0.7188 | 5.6495 |