The authors developed PersistBench, a benchmark comprising 360° videos that provide omniscient ground truth beyond the traditional field-of-view.
4D foundation models lack robust visual memory for out-of-view objects
New PersistBench benchmark uses 360° videos to show that current video and reconstruction models degrade sharply once objects leave the field of view.
Industry
Guangzhao He · Hadar Averbuch-Elor · Wei-Chiu Ma
Cornell University
Research Digest··2 min read
The authors introduce PersistBench, a dataset and metric suite using 360° videos as ground truth to test object permanence, motion continuity, and appearance preservation in 4D foundation models.
Why this paper
From Cornell University · Part of World Model Planning for Agents, now 19 papers
In one line
Current 4D foundation models fail to remember objects that exit their field of view.
What we could check
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