Electronic device for obtaining feature point from coded image and method for operating the same
AssigneeSamsung Electronics Co., Ltd.
InventorsBonkon Koo, Youngmo Jeong, Jongchul Choi
Life of this patent
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Abstract
An electronic device includes a light source configured to output light, a pattern mask configured to change a path of light transmitted through a pattern of the pattern mask, an image sensor configured to receive light that is output from the light source, reflected by an eye, and transmitted through the pattern mask, and at least one processor configured to obtain a coded image that is phase-modulated based on light transmitted through the pattern mask, obtain a feature point of the eye from the coded image, and obtain gaze information of a user based on the feature point.
Claims20
An electronic device comprising:
- a first light source configured to output first light of a first wavelength;
- a second light source configured to output second light of a second wavelength;
- a pattern mask configured to phase-modulate light transmitted through a pattern of the pattern mask;
- an image sensor configured to receive light that is output from the first light source and the second light source, reflected by an eye, and transmitted through the pattern mask;
- and
- at least one processor configured to:
- obtain a first coded image that is phase-modulated based on the first light transmitted through the pattern mask,
- obtain a second coded image that is phase-modulated based on the second light transmitted through the pattern mask;
- selectively obtain a feature point of the eye from at least one of the first coded image and the second coded image or reconstruct an original image of the eye from at least one of the first coded image and the second coded image,
- obtain gaze information of a user based on the feature point, and
- obtain authentication information of the user if the original image is reconstructed.
A method comprising:
- obtaining a first coded image that is phase-modulated, based on first light of a first wavelength reflected by an eye and transmitted through a pattern mask and received through an image sensor;
- obtaining a second coded image that is phase-modulated, based on second light of a second wavelength reflected by the eye and transmitted through the pattern mask and received through the image sensor;
- selectively obtaining a feature point of the eye from at least one of the first coded image and the second coded image or reconstructing an original image of the eye from at least one of the first coded image and the second coded image;
- obtaining gaze information of a user based on the feature point, and
- obtaining authentication information of the user if the original image is reconstructed.
Dependencies are inferred from the claim text.