PerceptionComp: A Video Benchmark for Complex Perception-Centric Reasoning. - Shaoxuan Li; Zhixuan Zhao; Hanze Deng; Zirun Ma; Shulin Tian; Zuyan Liu; Yushi Hu; Haoning Wu; Yuhao Dong; Benlin Liu; Ziwei Liu; Ranjay Krishna (CoRR, 2026)