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US 11,961,260 B1Granted
System for producing three-dimensional medical images using a calibration slate
OwnerFrancis Godwin James, Jr., Shoban Pattaminventors
Life of this patent
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Abstract
A system produces three-dimensional medical images that are calibrated using a calibration slate. A subject is photographed with a calibration slate shown in the image. The slate includes printed colors that can be compared against standard colors associated with the slate to color calibrate the image. Two-dimensional images of the subject may be used to construct a three-dimensional image that shows wounds or other skin conditions that are color calibrated.
Claims26
A method of color calibrating a three-dimensional image related to the medical field,
- said method comprising the steps of:
- capturing one or more two-dimensional images of a subject on an image recording device, wherein the one or more two-dimensional images include a calibration slate appearing in the one or more two-dimensional images, wherein the calibration slate has a print run number that identifies a batch of printed calibration slates which includes the calibration slate appearing in the one or more two-dimensional images, a unique identifier that individually identifies the calibration slate appearing in the one or more two-dimensional images, and a color chart comprising at least one color;
- generating point cloud data relating to the subject of the one or more two-dimensional images;
- constructing a three-dimensional model of the subject utilizing the point cloud data;
- applying the one or more two-dimensional images to the three-dimensional model to produce a three-dimensional image of the subject, wherein the three-dimensional image shows the calibration slate that appears in the one or more two-dimensional images;
- 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 the one or more two-dimensional images;
- reading the print run number;
- associating the print run number with the batch of printed calibration slates which includes the calibration slate appearing in the one or more two-dimensional images, 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 the one or more two-dimensional images 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 the one or more two-dimensional images or from the three-dimensional image.
11 more elements
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.
8 more elements
Dependencies are inferred from the claim text.