Compressed sensing with regularization parameter

A magnetic resonance (MR) system configured to generate a signal-to-noise improved MR image of an object under examination in an MR system using a compressed sensing technology, the MR system comprising:

• a control unit configured to:
• determine a first MR signal data set of the object under examination in which a corresponding k-space is randomly subsampled;
• determine a location dependent sensitivity map for each receiving coil of at least one receiving coil used to detect MR signals of the first MR signal data set in a location of object under examination;
• and
• generate the MR image using an optimization process of the compressed sensing technology in which a location dependent regularization parameter is used,
• wherein the location dependent regularization parameter is determined based on the location dependent sensitivity map.

A non-transitory computer readable storage medium comprising a computer program having program code, wherein the computer program, when executed by a control unit of a magnetic resonance (MR) system, is configured to cause the MR system to:

• determine a first MR signal data set of an object under examination in which a corresponding k-space is randomly subsampled;
• determine a location dependent sensitivity map for each receiving coil of at least one receiving coil used to detect MR signals of the first MR signal data set in a location of object under examination;
• and
• generate a MR image using an optimization process of a compressed sensing technology in which a location dependent regularization parameter is used,
• wherein the location dependent regularization parameter is determined based on the location dependent sensitivity map.