rt_inv_op.h File Reference

Real-time recomputation of the linear inverse operator from updated noise covariance. More...

#include "../dsp_global.h"
#include <fiff/fiff_cov.h>
#include <QThread>
#include <QSharedPointer>

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Classes
struct	RTPROCESSINGLIB::RtInvOpInput
	Input bundle for the real-time inverse operator worker containing noise covariance, forward solution, and settings. More...
class	RTPROCESSINGLIB::RtInvOpWorker
	Background worker thread that recomputes the MNE inverse operator when covariance updates arrive. More...
class	RTPROCESSINGLIB::RtInvOp
	Controller that manages RtInvOpWorker for online inverse operator updates. More...

Namespaces
namespace	FIFFLIB
	FIFF file I/O, in-memory data structures and high-level readers/writers.
namespace	MNELIB
	Core MNE data structures (source spaces, source estimates, hemispheres).
namespace	RTPROCESSINGLIB

Detailed Description

Real-time recomputation of the linear inverse operator from updated noise covariance.

SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2026 MNE-CPP Authors

Author

Christoph Dinh chris.nosp@m.toph.nosp@m..dinh.nosp@m.@mne.nosp@m.-cpp..nosp@m.org

Since

2.1.0

Date

March 2026

RtInvOp recomputes a regularised MNELIB::MNEInverseOperator whenever a new noise-covariance estimate is published by RtCov, so a live source-localisation pipeline can adapt to changes in the sensor noise floor (subject movement, ambient electromagnetic noise, channel removal) without dropping a sample. The forward solution, source-orientation settings and SNR / depth-prior parameters are held constant; only the covariance-dependent factors are reassembled.

The actual whitening, SVD and assembly run on a worker QThread; the resulting inverse operator is delivered via a Qt signal so downstream applyInverse calls see a consistent operator at all times.

Definition in file rt_inv_op.h.