SYSTEM FOR THE MEASUREMENT OF THE INTERPUPILLARY DISTANCE USING A DEVICE EQUIPPED WITH A DISPLAY AND A CAMERA
First Claim
1. A method of determining a distance on a human body using an electronic device, the method comprising:
- displaying at least one guide marker on a display, the display having a reflective surface;
capturing an image via a camera associated with the display, the image including two points on a body, wherein when the image is captured a reflection of the two points is aligned with the at least one guide marker;
determining a three-dimensional position of each point based on a stereo pair, the stereo pair including the image and the reflection of the two points aligned with the at least one guide marker; and
calculating the distance between the two points by comparing the three-dimensional positions of each point.
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Abstract
A system for measuring the interpupillary distance of two eyes of a face using a device equipped with a display and a camera. For example, a guide marker (or guide markers) is displayed on a reflective display, and an image is captured using the camera when the reflection of the face is aligned with the guide marker. A stereo pair is created using the camera image and the reflection of the face on the display, and the interpupillary distance is determined by comparing the three-dimensional positions of the two eyes. The device is capable of calibration using a calibration object to detect the distance between the guide marker on the display and the camera. A facial recognition engine is employed in some cases to detect the eyes or other points on the camera image.
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Citations
22 Claims
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1. A method of determining a distance on a human body using an electronic device, the method comprising:
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displaying at least one guide marker on a display, the display having a reflective surface; capturing an image via a camera associated with the display, the image including two points on a body, wherein when the image is captured a reflection of the two points is aligned with the at least one guide marker; determining a three-dimensional position of each point based on a stereo pair, the stereo pair including the image and the reflection of the two points aligned with the at least one guide marker; and calculating the distance between the two points by comparing the three-dimensional positions of each point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A computing device configured to determine a distance on a human body, the device comprising:
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a processor; memory in electronic communication with the processor; computer readable instructions stored by the memory that cause the processing circuit to perform a method comprising; displaying at least one guide marker on a display, the display having a reflective surface; capturing an image via a camera associated with the display, the image including two points on a body, wherein when the image is captured a reflection of the two points is aligned with the at least one guide marker; determining a three-dimensional position of each point based on a stereo pair, the stereo pair including the image and the reflection of the two points aligned with the at least one guide marker; and calculating the distance between the two points by comparing the three-dimensional positions of each point. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A computer program product for determining, by a processor, a distance on a human body, the computer program product comprising a non-transitory computer-readable medium storing instructions thereon, the instructions being executable by the processor to:
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display at least one guide marker on a display, the display having a reflective surface; capture an image via a camera associated with the display, the image including two points on a body, wherein when the image is captured a reflection of the two points is aligned with the at least one guide marker; determine a three-dimensional position of each point based on a stereo pair, the stereo pair including the image and the reflection of the two points aligned with the at least one guide marker; and calculate the distance between the two points by comparing the three-dimensional positions of each point.
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Specification