System for endoscopic imaging and method for processing images

A method for processing images generated by a system for endoscopic imaging, wherein the system comprises:

• a light source configured to generate light;
• an insertion portion configured to be inserted into an object and comprising a distal end, a proximal end and a light guiding path configured to guide the generated light to the distal end of the insertion portion and to guide light emanating from a medium within the object to the proximal end of the insertion portion;
• a first imaging device mounted at the proximal end of the insertion portion and optically coupled to the light guiding path, the first imaging device comprising a plurality of first detecting elements, the first detecting elements exhibiting a first sensitivity to light and being configured to detect a first part of the light emanating from the medium to obtain at least one first image of the medium exhibiting a first spatial resolution, the at least one first image of the medium comprising at least one of a color image or a reflectance image of the medium;
• a flexible guiding portion comprising a distal end and a proximal end, the distal end of the guiding portion being optically coupled to the light guiding path, and being configured to guide a second part of the light emanating from the medium from the distal end of the guiding portion to the proximal end of the guiding portion;
• and
• a second imaging device provided at the proximal end of the flexible guiding portion and comprising a plurality of second detecting elements, the second detecting elements exhibiting a second sensitivity to light and being configured to detect the second part of the light emanating from the medium to obtain at least one second image of the medium exhibiting a second spatial resolution, the at least one second image of the medium being a fluorescence image of the medium, the second sensitivity of the second detecting elements being higher than the first sensitivity of the first detecting elements and the first spatial resolution of the first image being higher than the second spatial resolution of the second image;
• and
• wherein the method comprises:
• deriving at least one third image of the medium based on image data of the at least one first image of the medium and image data of the at least one second image of the medium by correcting image data of the at least one second image of the medium for motion of the insertion portion and the medium relative to each other based on image data of two subsequently acquired first images of the medium, wherein motion-corrected image data of the at least one second image form the at least one third image.