Abstract: A method comprises: splitting laser light into sample light, reference light, and monitor light; routing the reference light into a reference arm of an OCT interferometer; routing the monitor light into a monitor device, which generates at least one optical monitor signal representing at least one time-dependent property of the monitor light; generating at least one electric monitor signal from the at least one optical monitor signal; illuminating in a point-shaped manner a sample with sample light, wherein the illumination point is guided on the surface of the sample along a predetermined trajectory; superimposing the light scattered by the sample with the reference light emerging from the reference arm to generate an electric OCT signal; wherein the at least one electric monitor signal and the electric OCT signal are AD-converted in alternating sequence, in each case equidistantly in time, to form a single digital data stream.

Abstract: The invention relates to a method for monitoring time-dependent properties of light during scanning swept-source optical coherence tomography, having the steps: a. generating laser light having wavelengths that change on a time-dependent basis and a predetermined sweep duration; b. splitting the laser light into sample light, reference light, and monitor light; c. routing the reference light into a reference arm of an OCT interferometer; d. routing the monitor light into a monitor device, which generates at least one optical monitor signal representing at least one time-dependent property of the monitor light; e. generating at least one electric monitor signal from the at least one optical monitor signal with a light detector; f. illuminating in a point-shaped manner a sample with sample light, wherein the illumination point is guided on the surface of the sample along a predetermined trajectory; g.

Abstract: A method for generating at least one section of a virtual 3D model of a body interior, in particular a hollow organ, uses data that are provided by at least one endoscope introduced into the body interior. The data comprise at least one position and orientation of the endoscope, the at least one position and orientation being assigned at least one distance between the endoscope and the at least one point on a surface of the body interior, and at least one endoscopic image of the surface of the body interior in the region of the at least one point on the surface of the body interior. From the said data relating to a number of different positions and orientations of the endoscope is/are generated the section or sections of the 3D model in superposition with the associated endoscopic image. An appropriate apparatus is also described.

Abstract: A method for generating at least one section of a virtual 3D model of a body interior, in particular a hollow organ, uses data that are provided by at least one endoscope introduced into the body interior. The data comprise at least one position and orientation of the endoscope, the at least one position and orientation being as signed at least one distance between the endoscope and the at least one point on a surface of the body interior, and at least one endoscopic image of the surface of the body interior in the region of the at least one point on the surface of the body interior. From the said data relating to a number of different positions and orientations of the endoscope is/are generated the section or sections of the 3D model in superposition with the associated endoscopic image. An appropriate apparatus is also described.