Machine learning-based lag correction for front layer detector in a dual-layer system

System (SYS) for acquisition lag correction in X-ray imaging, comprising:

• an input interface (IN) for receiving input including an input image acquired by a front layer detector (FLD) in a multi-energy X-ray imaging apparatus (IA) and an additional image acquired by a back-layer detector (BLD) of the multi-energy X-ray imaging apparatus (IA), the back-layer detector comprising a circuitry (LRC) for reducing temporal lag effects, the additional image having been acquired by the back-layer detector while said circuitry is activated;
• and
• a corrector component (CC) configured to process the input image and the additional input image for generating a corrected input image that represents an estimate for image information of the front layer detector at lower acquisition lag than the acquisition lag experienced for the input image.