Mobile device for iris based authentication and controlling method thereof
First Claim
1. A mobile device, comprising:
- a memory configured to register and store a first iris image;
an illumination sensor configured to sense an external illuminance of the mobile device;
a display configured to emit a light from a preset region;
a camera configured to detect either a second iris image or a pupil image; and
a controller configured to;
determine whether the second iris image or the pupil image is a match to the stored first iris image;
control the memory, the illumination sensor, the camera and the display,control the display to display a message for guiding an eye motion according to the external illuminance sensed by the illumination sensor,when the sensed external illuminance belongs to a preset first range, control the display to set a display brightness to a maximum value and primarily detect the pupil image through the camera,control the display to set the display brightness to a minimum value and secondarily detect the pupil image through the camera,calculate a size variation of the pupil based on the primarily and secondarily detected pupil images,determine whether the calculated size variation is equal to or greater than a preset threshold,determine whether the second iris image is forged according to the determination, anddisplay a result of the determination through the display,wherein the message for guiding the eye motion is changed according to the sensed external illuminance.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed are a mobile device and controlling method thereof. The present invention includes a memory configured to register a first iris image, an illumination sensor configured to sense an external illuminance of the mobile device, a display configured to emit a light from a preset region, a camera configured to detect either a second iris image or a pupil image, and a controller configured to control the memory, the illumination sensor, the camera and the display and control the display to display a message for guiding a change of an eye according to the external illuminance sensed by the illumination sensor, wherein the message for guiding the change of the eye is changed according to the sensed external illuminance.
17 Citations
14 Claims
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1. A mobile device, comprising:
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a memory configured to register and store a first iris image; an illumination sensor configured to sense an external illuminance of the mobile device; a display configured to emit a light from a preset region; a camera configured to detect either a second iris image or a pupil image; and a controller configured to; determine whether the second iris image or the pupil image is a match to the stored first iris image; control the memory, the illumination sensor, the camera and the display, control the display to display a message for guiding an eye motion according to the external illuminance sensed by the illumination sensor, when the sensed external illuminance belongs to a preset first range, control the display to set a display brightness to a maximum value and primarily detect the pupil image through the camera, control the display to set the display brightness to a minimum value and secondarily detect the pupil image through the camera, calculate a size variation of the pupil based on the primarily and secondarily detected pupil images, determine whether the calculated size variation is equal to or greater than a preset threshold, determine whether the second iris image is forged according to the determination, and display a result of the determination through the display, wherein the message for guiding the eye motion is changed according to the sensed external illuminance. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of controlling a mobile device, comprising the steps of:
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registering and storing a first iris image at a memory; detecting a second iris image or a pupil image through a camera after registering the first iris image at the memory; determining whether the detected second iris image or the pupil image matches the first iris image registered at the memory to identify a user; sensing an external illuminance of the mobile device; displaying a message for guiding an eye motion according to the sensed external illuminance; when the sensed external illuminance belongs to a preset first range, primarily detecting the pupil image in a state that a display brightness is set to a maximum value; secondarily detecting the pupil image in a state that the display brightness is set to a minimum value; determining whether a size variation of the pupil is equal to or greater than a preset threshold based on the primarily and secondarily detected pupil images; determining whether the second iris image is forged according to the determination; and displaying a result of the determination, wherein the message for guiding the eye motion is changed according to the sensed external illuminance. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification