h3lloworld/ebc-jepa-led-time-bins

EBC-JEPA per-event LED denoising: carrier "k frames (histogram)"

Frozen V-JEPA 2.1 tokens on LED, tokenised as k frames (histogram) (16 time bins of 1.25 ms paired into 8 tubelet tokens per cell), scored per event: each event looks up the token at its (time bin / 2, patch) and is judged with its own E15 neighbourhood patch. Routes in this repo:

• V12 AC: token + E15 patch CNN, no history (v12_ac/).
• Integrated: History Reader (kv) conditions the token on earlier chunks, a TemporalViT reads the patch, and Pixel-AC fuses the per-event scores into one decision per pixel and chunk (integrated/<run>/; result.json carries the Pixel-AC metrics with the AC-only metrics under ac). Run-name suffixes: _nokv = reader bypassed, _lb = scalar Local branch on, _vit_base = ViT-B/384 tokens.

All units: 6,000 training chunks, 4 epochs, official 713 chunks at a fixed threshold of 0.5, no selection on test.

unit	route	backbone	kv	LB	SR	NR	DA
integrated/vit_base	History Reader + TemporalViT AC + Pixel-AC	ViT-B	on	off	0.8368	0.9058	0.8713
integrated/vit_large	History Reader + TemporalViT AC + Pixel-AC	ViT-L	on	off	0.8432	0.8992	0.8712
integrated/vit_large_lb	TemporalViT AC only (no Pixel-AC)	ViT-L	on	on	0.8380	0.8961	0.8670
integrated/vit_base_lb	TemporalViT AC only (no Pixel-AC)	ViT-B	on	on	0.8326	0.9004	0.8665
integrated/vit_large_nokv_lb	TemporalViT AC only (no Pixel-AC)	ViT-L	off	on	0.8249	0.9013	0.8631
integrated/vit_large_nokv	TemporalViT AC only (no Pixel-AC)	ViT-L	off	off	0.8289	0.8961	0.8625
integrated/vit_base_nokv	TemporalViT AC only (no Pixel-AC)	ViT-B	off	off	0.8208	0.9005	0.8606
v12_ac	V12 AC: event's V-JEPA token + E15 patch CNN, no history	ViT-L	off	off	0.8907	0.8272	0.8589

Reference on the same protocol: the collaborator's ViT-L histogram integrated run with Pixel-AC, DA .8714. Code: EBC-JEPA-share (denoising-local-run) and its share-contrib-vitb-downstream worktree.