Patent ID: 11961260
Assignee: nan
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  A  H | IPC G  H

Claim 13:
14. A method of calibrating a three-dimensional image related to the medical field, said method comprising the steps of:
capturing a plurality of two-dimensional images of a subject on an image recording device, wherein each of the captured two-dimensional images shows the same subject appearing in each respective two-dimensional image, wherein each of the captured two-dimensional images includes a calibration slate appearing in each respective two-dimensional image, wherein the calibration slate appearing in each respective two-dimensional image is the same calibration slate, wherein the calibration slate has a print run number that identifies a batch of printed calibration slates which includes the calibration slate appearing in each of the two-dimensional images, a unique identifier that individually identifies the calibration slate appearing in each of the two-dimensional images, and a color chart comprising at least one color;
constructing a three-dimensional image of the subject using the plurality of two-dimensional images, wherein the three-dimensional image shows the calibration slate that appears in each respective two-dimensional image;
reading the unique identifier and validating the calibration slate based on the unique identifier;
measuring a numeric color value from the at least one color in the color chart of the calibration slate appearing in each respective two-dimensional image;
reading the print run number;
associating the print run number with the batch of printed calibration slates which includes the calibration slate appearing in each respective two-dimensional image, wherein each calibration slate in the batch is substantially similar, wherein the measured numeric color value has a corresponding known numeric color value associated with the batch of calibration slates;
comparing the measured numeric color value to the corresponding known numeric color value;
calculating a variance between the measured numeric color value and the corresponding known numeric color value;
calculating a calibration factor based on the variance between the measured numeric color value and the corresponding known numeric color value; and
color calibrating the three-dimensional image by adjusting the colors of each respective two-dimensional image or of the three-dimensional image to produce a calibrated three-dimensional image, wherein the colors are adjusted by applying the calibration factor to numeric color values measured from each respective two-dimensional image or from the three-dimensional image.