# US 11,442,263 B2 · Method and devices for displaying stereoscopic images > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,442,263 B2 - Document ID: US11442263B2 - Status: Granted - Kind: B2 - Application number: 16/074,247 - Filed: 2017-01-24 - Published: 2021-01-28 - Granted: 2022-09-13 - Earliest claimed: 2016-02-04 - Assignees: Carl Zeiss Microscopy GmbH - Applicants: Carl Zeiss Microscopy GmbH - Inventors: Christoph Husemann; Lars Stoppe; Tanja Teuber; Lars Omlor; Kai Wicker; Enrico Geissler; Senthil Kumar Lakshmanan - Web page: https://patentgrep.com/patent/US11442263B2 ## CPC - G02B 21/365: {Control or image processing arrangements for digital or video microscopes (G02B21/361, G02B21/362 take precedence)} - G02B 21/367: {providing an output produced by processing a plurality of individual source images, e.g. image tiling, montage, composite images, depth sectioning, image comparison} - G02B 21/14: affording illumination for phase-contrast observation - G02B 21/22: Stereoscopic arrangements - H04N 13/156: Mixing image signals - H04N 13/189: Recording image signals; Reproducing recorded image signals - H04N 13/302: for viewing without the aid of special glasses, i.e. using autostereoscopic displays - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract Various approaches in which an image-recording parameter is varied between a plurality of images of an object and a stereo image pair is displayed on the basis of the images recorded thus are described. Here, in particular, the image-recording parameter can be a focal plane or an illumination direction. ## Claims ### Claim 1 A method for presenting stereo images, comprising: recording a plurality of images of an object by an image-recording device, wherein an image-recording parameter is varied over the plurality of images, determining a first result image and a second result image by a computer device, wherein at least two images of the plurality of images are combined in each case for calculating the first result image and the second result image, wherein the first result image and the second result image form a stereo image pair for presenting stereo images, wherein the image-recording parameter comprises an illumination direction such that the plurality of images are recorded with different illumination directions, and wherein determining the first result image and the second result image comprises: calculating a first phase-contrast image, which has an increased phase contrast in a first direction, and a second phase-contrast image, which has an increased phase contrast in a second direction that differs from the first direction, based on the plurality of images; calculating the first result image based on the first phase-contrast image and the second phase-contrast image; and calculating the second result image based on the first phase-contrast image and the second phase-contrast image. ### Claim 2 (depends on 1) The method of claim 1, further comprising: displaying the first result image for a left eye of a user and the second result image for a right eye of the user. ### Claim 3 (depends on 1) The method of claim 1, wherein the image-recording parameter comprises a focal plane such that the plurality of images are recorded with different defocusing. ### Claim 4 (depends on 1) The method of claim 1, further comprising: predetermining an observation perspective, wherein the first and second result image is determined on the basis of the observation perspective. ### Claim 5 (depends on 1) The method of claim 1, wherein recording the plurality of images comprises recording a first plurality of images with illumination directions in a first illumination direction range and recording a second plurality of images with illumination directions in a second illumination direction range that differs from the first illumination direction range, and wherein the first result image is calculated on the basis of the first plurality of images and the second result image is calculated on the basis of the second plurality of images. ### Claim 6 (depends on 1) The method of claim 1, wherein the first result image and the second result image are calculated as a phase-contrast image in each case. ### Claim 7 (depends on 1) The method of claim 1, further comprising: predetermining a stereo angle, wherein determining the first and second result image is effected in such a way that the perspectives of the first and the second result image differ by the predetermined stereo angle. ### Claim 8 (depends on 1) The method of claim 1, wherein perspectives of the first result image and of the second result image differ by an angle which lies between 11° and 16°. ### Claim 9 (depends on 1) The method of claim 1, further comprising carrying out a digital image improvement on the plurality of images, the first result image and/or the second result image. ### Claim 10 An apparatus, comprising: an image-recording device for recording a plurality of images of an object, wherein the image-recording device is configured to vary an image-recording parameter over the plurality of images, and a computing device for determining a first result image and a second result image on the basis of the plurality of images, wherein at least two images of the plurality of images are combined in each case for the first result image and the second result image such that the first result image and the second result image form a stereo image pair, wherein the image-recording parameter comprises an illumination direction such that a multiplicity of images are recorded with different illumination directions, and wherein determining the first result image and second result image comprises: calculating a first phase-contrast image, which has an increased phase contrast in a first direction, and a second phase-contrast image, which has an increased phase contrast in a second direction that differs from the first direction, based on the multiplicity of images; calculating the first result image based on the first phase-contrast image and the second phase-contrast image; and calculating the second result image based on the first phase-contrast image and the second phase-contrast image. ### Claim 11 (depends on 10) The apparatus of claim 10, wherein the image-recording device comprises a microscope device. ### Claim 12 (depends on 10) The apparatus of claim 10, further comprising a stereoscopic display apparatus for displaying the first result image for a left eye of an observer and the second result image for a right eye of an observer. ### Claim 13 (depends on 10) The apparatus of claim 10, wherein the image-recording parameter comprises an illumination direction such that a multiplicity of images are recorded with different illumination directions, and wherein recording the multiplicity of images comprises recording a first multiplicity of images with illumination directions in a first illumination direction range and recording a second multiplicity of images with illumination directions in a second illumination direction range that differs from the first illumination direction range, wherein the first result image is determined on the basis of the first multiplicity of images and the second result image is determined on the basis of the second multiplicity of images. ### Claim 14 (depends on 1) The method of claim 1, wherein the first result image and the second result image comprise intensity images. ### Claim 15 (depends on 10) The apparatus of claim 10, wherein the first result image and the second result image comprise intensity images.