Patent ID: 11954766
Assignee: CARL ZEISS MEDITEC AG
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 2:
3. An optical observation system, comprising:
an optical observation device including at least one image sensor to record digital images of a three-dimensional observation object;
an illumination device to illuminate the three-dimensional observation object with illumination light having an intensity distribution;
a topography ascertainment device to ascertain a topography of the three-dimensional observation object; and
a shading correction device connected to the at least one image sensor to receive a digital image of the three-dimensional observation object and connected to the topography ascertainment device to receive the topography and configured to correct an inhomogeneity in an image brightness of the digital image of the three-dimensional observation object based on the topography and the intensity distribution,
wherein the topography of the three-dimensional observation object, a spatial position and an orientation of the at least one image sensor and a position and the orientation of a virtual plane and, optionally, the position of a light source are specified in the same coordinate system, and
wherein the topography of the three-dimensional observation object and the spatial position and the orientation of the at least one image sensor and, optionally, the position and the orientation of the virtual plane and, optionally, the position of the light source are ascertained with a navigation system.