Spatial Artifact Coherence Determines Codec Robustness in Patch-Based rPPG 事件

Spatial Artifact Coherence Determines Codec Robustness in Patch-Based rPPG arXiv:2606.04198v1 Announce Type: new Abstract: Remote photoplethysmography (rPPG) achieves low heart-rate error on uncompressed benchmarks yet is deployed over compressed video channels in telehealth, neonatal ICU, and driver fatigue applications. No prior work identifies the physical quantity determining when spatial decomposition outperforms global-projection methods under codec compression. We propose Spatial Artif