20 Commits

Author	SHA1	Message	Date
leonarski_f	100fe7b7e7	PixelRefine: make factored Terms 1+2 the model, remove old wiring ... PixelRefine is now an intensity-only operation: geometry is fixed (refined upstream by XtalOptimizer) and the only objective is the factored per-reflection likelihood (FACTORED_MODEL.md Terms 1+2) - measured per-resolution profile width R1 plus one Fisher-weighted intensity/scaling residual per reflection, fitting the per-image scale G and B. Validated on crystal 2 (fixed_master.h5 as stills, 1.7 A): CC1/2 84-92%, CCref 77-92%, flat - reproduces the env-flag prototype and matches the rotation path from the stills path. Removed: - the per-pixel ShoeboxResidual loss and PixelResidual cost functor; - all in-PixelRefine geometry refinement (orientation/cell/beam/distance/R), the regularised-orientation LSQ, signal-weighting, and the global sweep; - Term 3 (per-spot recentring) - a confirmed no-op on both crystals; - the diagnostic scaffolding (covariance, centroid, adaptive_R1) and the PR_* env knobs + stderr dumps in IndexAndRefine; - the PredictImage/ChiSquaredImage renderers and the entire viewer PixelRefine window/table/params + worker bindings + shoebox overlay. The sweep box-integrator background median became mean (consistency) by virtue of removing the sweep. METHODS.md rewritten for the current model; findings recorded in FINDINGS-2026-06.md. Net -2200 lines. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-13 22:02:18 +02:00
leonarski_f	6f2033db00	PixelRefine: checkpoint before cleanup (factored model + all diagnostic levers) ... Snapshot of the messy state: factored likelihood Terms 1+2+3 behind PR_* env flags (PR_INTENSITY/PR_SHAPE/PR_RECENTER) alongside the old per-pixel ShoeboxResidual, plus diagnostic scaffolding (PR_R0/R1/COV/FIX_R0/FIX_R/ ADAPT_R1/CENTROID/RECENTER) and the FACTORED_MODEL.md spec. Next commit makes Terms 1+2 the model and strips all of this. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-13 21:34:33 +02:00
leonarski_f	c93d381dc8	Error model: harden the fit against pathological inputs (code review) ... Addresses code-review findings on RefineErrorModel: - Floor the 1/dev^2 bin weight relative to the data scale (1e-3 of the median bin dev^2), not an absolute 1e-30: a near-zero-scatter bin could otherwise acquire a runaway weight and hijack the global (a,b) fit. - Reject a near-collinear normal-equation system relatively (det > 1e-10*Ass*AII) instead of with an absolute threshold that an ill-conditioned fit can pass. - Reset the model to identity at entry so any early return leaves it inactive rather than keeping a stale a/b alongside a freshly-cleared mean map (which would make CorrectedSigma fall back to the per-observation I). - PixelRefine: correct the orient_prior comment - with the sweep on, the LSQ anchor is the swept orientation (intended), not the spot-centroid one. Verified unchanged on the lyso test set (ISa 1.1, CC1/2 90.3%). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-12 18:53:02 +02:00
leonarski_f	e6a50b45c7	Integration: mean background + global error model (trustworthy sigmas) ... Background estimate: use the mean of the local ring, not the median. For a right-skewed (Poisson) background the median sits below the mean, so subtracting it under-subtracts and biases every weak intensity positive; over multiplicity this becomes fake <I/sig> of a few in no-signal high-resolution shells. Fixed in both PixelRefine and BraggIntegrate2D (the classical route had the same bug). <I/sig> now tracks CC honestly and the true resolution limit is visible. Error model: fit a global a, b (XDS form sigma'^2 = a*sigma^2 + (b*I)^2) from the scatter of symmetry equivalents at the merge level (so both integrators benefit), and print it with ISa = 1/b in jfjoch_process. The (b*I)^2 term uses the reflection mean (not the per-observation I_i, which biases the weights and collapses CC); a,b come from a relative-weighted bin regression. Replaces the earlier per-resolution-shell variant, which was partly masking the background bias. METHODS.md: document both (Sections 6-7), integrator-agnostic. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-12 18:39:32 +02:00
leonarski_f	db68c8dc38	PixelRefine: Results seem to be much better	2026-06-12 17:28:18 +02:00
leonarski_f	47dc19dd03	PixelRefine: Improvements to accept more reasonable count of reflections	2026-06-12 10:12:23 +02:00
leonarski_f	d31063ca3f	PixelRefine: Some improvements	2026-06-11 21:25:05 +02:00
leonarski_f	bd5fef7f61	PixelRefine: Simplify (remove Lorentz correction, remove background from azimuthal integration)	2026-06-10 18:37:46 +02:00
leonarski_f	efe882f4b6	jfjoch_viewer: Better display (to be tested) of pixel refine	2026-06-09 16:28:17 +02:00
leonarski_f	6c85aaba2b	BraggPrediction: Include X-ray bandwidth	2026-06-09 15:01:44 +02:00
leonarski_f	e4b66f9cd9	PIxelRefine: Another iteration	2026-06-09 08:04:27 +02:00
leonarski_f	e8a9b1840d	PixelRefine: Make it faster by doing one cell calculation per shoe-box	2026-06-08 22:45:22 +02:00
leonarski_f	05711a1077	jfjoch_viewer: Add pixel refinw and magnifier windows (to be tested)	2026-06-08 21:22:19 +02:00
leonarski_f	698a98be35	PixelRefine: Claude fixed my bugs	2026-06-08 20:06:53 +02:00
leonarski_f	155c53acd8	jfjoch_process: First pixel refine integration	2026-06-08 15:37:27 +02:00
leonarski_f	6f31159607	PixelRefine: Add bandwidth contribution	2026-06-08 13:59:01 +02:00
leonarski_f	6f6098d508	PixelRefine: Work in progress (Claude)	2026-06-08 13:44:39 +02:00
leonarski_f	66a48c4266	PixelRefine: Work in progress (Claude)	2026-06-08 12:43:10 +02:00
leonarski_f	9a991b6614	PixelRefine: Work in progress	2026-06-08 11:59:48 +02:00
leonarski_f	50f953bcc5	PixelRefine: Work in progress	2026-06-08 09:41:58 +02:00