SNR-like registration audit

Measure definition: normalized receive-sensitivity coverage surrogate from snr_like_map. Not true SNR. No noise covariance, no loading, no EM validation.

Purpose: Check whether the apparent downward shift is physical A-P sensitivity, axis flip, or display registration mismatch. Do not fix by visual centering.

Contract

{
  "ok": true,
  "candidate_name": "snr_like_registration_audit_current",
  "workers_used": 3,
  "image_count": 2,
  "metric_row_count": 32,
  "qa_flag_count": 3,
  "purpose": "Audit whether SNR-like coverage shift is physical, axis flip, or registration/display mismatch.",
  "measure_definition": "normalized receive-sensitivity coverage surrogate from snr_like_map, not true SNR",
  "important_warning": "Do not fix by visual centering. Choose orientation/registration only after reviewing metrics and loop overlays.",
  "next_decision": "If current orientation is wrong, rebuild Phase A/B with explicit axis flip/extent correction. If current orientation is right, relabel and explain A-P asymmetry."
}

SNR-like registration audit

Contract

b0_y_transverse_xz_snr_like_registration_variants.png

b0_z_transverse_xy_snr_like_registration_variants.png

Tables