A Cross-Model VLM-Judge Protocol for Single-Image 3D Mesh Quality (and Why Cheap Proxies Fall Short)

In three linesEvaluation protocol for single-image-to-3D mesh quality using VLM judges (vision-language models). Authors demonstrate that cheap proxies (CLIP similarity, geometry validity stats) fail to correlate with perceived quality. Their VLM-judge protocol with position-bias correction achieves Cohen's kappa = 0.66 between two independent judge families.

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