Patent ID: 11900573
Assignee: CARL ZEISS MICROSCOPY GMBH
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A device for generating an overview contrast image of a sample carrier to be arranged in a sample volume in a microscope, having
a camera, which has an image field acquiring the sample volume,
a two-dimensional illumination array, which has individually switchable single light sources and illuminates the sample volume in transmitted light, and
a processing unit, which activates and reads out the camera in order to record multiple different raw overview images of the sample volume,
wherein:
the processing unit activates the two-dimensional illumination array in order to switch on the single light sources individually,
the processing unit is configured so that it generates each of the raw overview images, in that it switches on precisely one of the single light sources, wherein it switches on an individual one of the single light sources for each raw overview image so that it records N raw overview images,
the processing unit is configured so that it generates intermediate images from the raw overview images in that it defines brightness ranks for pixels of the raw overview images, assigns each intermediate image to precisely one brightness rank, and in each intermediate image, for each pixel of this intermediate image, searches out the raw overview image in the raw overview images which has the brightness rank at the corresponding pixel which is assigned to the respective intermediate image, and uses the brightness value of the corresponding pixel of the found raw overview image, and
the processing unit is configured so that it combines the intermediate images to form the overview contrast image, wherein it does not take the intermediate image assigned to the first brightness rank into consideration and does not incorporate it into the overview contrast image.