OPIS: An Input-Grounded Benchmark for Multi-Object Memory in Video World Models
Video world models must preserve the visual state of the world over time, but existing evaluation protocols often rely on generated histories, video reference, or selected revisit viewpoints that can confound the assessment of a model's true memory capability. To address this, we introduce OPIS, an input-grounded bench...
Hao Wang, Tao Yu, Liu-Zhou Zhang et al.
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