System and method for automatic torsion correction in diagnostic ophthalmic measurements
The disclosure includes an automatic torsion correction system and method using a processor to access information regarding a first and a second infrared or white light image and a corresponding, concurrently captured first and second ophthalmic diagnostic image; identify ophthalmic features in the first infrared or white light image and the second infrared or white light image and use these features to determine a first torsion of the first infrared or white light image with respect to a vertical axis and a second torsion of the second infrared or white light image with respect to the vertical axis, then determine a first and a second torsion correction to align the first and second infrared or white light image with respect to the vertical axis and apply the first and second torsion corrections to the first and second ophthalmic diagnostic images, respectively, then send the corrected diagnostic images to a display.
1. An automatic torsion correction system, the system comprising:
a processor having access to memory media storing instructions or sets of instructions executable by the processor to:
access information regarding a first infrared or white light image and a corresponding, concurrently captured first ophthalmic diagnostic image;
access information regarding a second infrared or white light image and a corresponding, concurrently captured second ophthalmic diagnostic image;
identify at least two ophthalmic features in the first infrared or white light image and the second infrared or white light image;
using the at least two ophthalmic features, determine a first torsion, if any, of the first infrared or white light image with respect to a vertical axis and a second torsion of the second infrared or white light image with respect to the vertical axis;
if a first torsion exists, determine a first torsion correction to align the first infrared or white light image with respect to the vertical axis and apply the first torsion correction to the first ophthalmic diagnostic image;
determine a second torsion correction to align the second infrared or white light image with respect to the vertical axis and apply the second torsion correction to the second ophthalmic diagnostic image; and
send the first ophthalmic diagnostic image and the second ophthalmic diagnostic image to a display; and
a display operable to display the first ophthalmic diagnostic image and the second ophthalmic diagnostic image.
2. The automatic torsion correction system of claim 1 , wherein the first ophthalmic diagnostic image and the second ophthalmic diagnostic image are the same type of image.
3. The automatic torsion correction system of claim 1 , wherein the first ophthalmic diagnostic image and the second ophthalmic diagnostic image are different types of images.
4. The automatic torsion correction system of claim 1 , wherein the first infrared or white light image and the second infrared or white light image contain both infrared images and white light images.
5. The automatic torsion correction system of claim 1 , wherein the at least two ophthalmic features include features of the sclera, limbus, or iris.
6. The automatic torsion correction system of claim 1 , wherein using the at least two ophthalmic features to determine a first torsion, if any, and a second torsion comprises comparing the color, size, shape, or relative locations of the two ophthalmic features.
7. The automatic torsion correction system of claim 1 , wherein the system further comprises a first instrument of diagnostic equipment operable to concurrently capture the first infrared or white light image and the first ophthalmic diagnostic image and to generate the information regarding the first infrared or white light image and the first ophthalmic diagnostic image.
8. The automatic torsion correction system of claim 7 , wherein the first instrument of diagnostic equipment is further operable to concurrently capture the second infrared or white light image and the second ophthalmic diagnostic image and to generate the information regarding the second infrared or white light image and the second ophthalmic diagnostic image.
9. The automatic torsion correction system of claim 7 , wherein the system further comprises a second instrument of diagnostic equipment is operable to concurrently capture the second infrared or white light image and the second ophthalmic diagnostic image and to generate the information regarding the second infrared or white light image and the second ophthalmic diagnostic image.
10. The automatic torsion correction system of claim 1 , wherein the processor is further operable to:
access information regarding an additional infrared or white light image and a corresponding, concurrently captured additional ophthalmic diagnostic image;
identify the at least two ophthalmic features in the additional infrared or white light image;
determine an additional torsion correction to align the additional infrared or white light image with respect to the vertical axis and apply the additional torsion correction to the additional ophthalmic diagnostic image; and
send the additional ophthalmic diagnostic image to a display; and
wherein the display is further operable to display the additional ophthalmic diagnostic image.
11. A method of automatic torsion correction using an automatic torsion correction system, the method comprising:
accessing information regarding a first infrared or white light image and a corresponding, concurrently captured first ophthalmic diagnostic image;
accessing information regarding a second infrared or white light image and a corresponding, concurrently captured second ophthalmic diagnostic image;
identifying at least two ophthalmic features in the first infrared or white light image and the second infrared or white light image;
using the at least two ophthalmic features, determining a first torsion, if any, of the first infrared or white light image with respect to a vertical axis and a second torsion of the second infrared or white light image with respect to the vertical axis;
if a first torsion exists, determining a first torsion correction to align the first infrared or white light image with respect to the vertical axis and applying the first torsion correction to the first ophthalmic diagnostic image;
determining a second torsion correction to align the second infrared or white light image with respect to the vertical axis and applying the second torsion correction to the second ophthalmic diagnostic image; and
displaying the first ophthalmic diagnostic image and the second ophthalmic diagnostic image.
12. The method of claim 11 , wherein the first ophthalmic diagnostic image and the second ophthalmic diagnostic image are the same type of image.
13. The method of claim 11 , wherein the first ophthalmic diagnostic image and the second ophthalmic diagnostic image are different types of images.
14. The method of claim 11 , wherein the first infrared or white light image and the second infrared or white light image contain both infrared images and white light images.
15. The method of claim 11 , wherein the at least two ophthalmic features include features of the sclera, limbus, or iris.
16. The automatic torsion correction system of claim 11 , wherein using the at least two ophthalmic features to determine a first torsion, if any, and a second torsion comprises comparing the color, size, shape, or relative locations of the two ophthalmic features.
17. The method of claim 11 , further comprising concurrently capturing, using a first instrument of diagnostic equipment, the first infrared or white light image and the first ophthalmic diagnostic image and generating the information regarding the first infrared or white light image and the first ophthalmic diagnostic image.
18. The method of claim 17 , further comprising concurrently capturing, using the first instrument of diagnostic equipment, the second infrared or white light image and the second ophthalmic diagnostic image and generating the information regarding the second infrared or white light image and the second ophthalmic diagnostic image.
19. The method of claim 17 , further comprising concurrently capturing, using thea second instrument of diagnostic equipment, the second infrared or white light image and the second ophthalmic diagnostic image and generating the information regarding the second infrared or white light image and the second ophthalmic diagnostic image.
20. The method of claim 11 , further comprising:
accessing information regarding an additional infrared or white light image and a corresponding, concurrently captured additional ophthalmic diagnostic image;
identifying the at least two ophthalmic features in the additional infrared or white light image;
determining an additional torsion correction to align the additional infrared or white light image with respect to the vertical axis and applying the additional torsion correction to the additional ophthalmic diagnostic image; and
displaying the additional ophthalmic diagnostic image.