Input method and apparatus of portable device for mapping segments of a hand to a plurality of keys
First Claim
1. An input apparatus for use in a portable device, comprising:
- a camera for capturing an image of a hand;
a storage unit which stores a key-hand mapping table for mapping segments of a hand to a plurality of keys, respectively, according to predetermined criteria;
a display unit which displays, in an input mode, the captured image thereon; and
a control unit configured to;
activate the camera during the input mode and control the display unit to display the captured image,display the plurality of keys mapped to the segments of the hand based on the key-hand mapping table, in response to detecting that a shape of the hand satisfies a predetermined condition,output a message requesting a change of the shape of the hand, in response to detecting that the shape of the hand does not satisfy the predetermined condition,in response to detecting an image change in one of the segments displayed on the display unit, input a key of the plurality of keys mapped to the segment where the image change is detected on the display unit, andin response to detecting, via the camera a particular change in the hand folding at least one finger while other fingers are extended, removing the displayed plurality of keys to display a numeric keypad mapped to at least some of the segments of the hand based on the key-hand mapping table.wherein the control unit controls the display unit to display a character input region displaying one or more characters inputted via the mapped plurality of keys, the character input region displayed separately from the mapped plurality of keys.
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Abstract
An input apparatus for use in a portable device is provided. The input apparatus includes a camera for capturing an image; a storage unit which stores a key-hand mapping table for mapping segments of a hand to a plurality of keys, respectively, according to predetermined criteria; a display unit displaying the captured image during an input mode; and a control unit which activates the camera in the input mode, controls the display unit to display the captured image, assign the plural keys to the segments of the hand based on mapping information of the key-hand mapping table, detect an image change in one of the segments displayed on the display unit, and input the key mapped to the segment at which the image change is detected on the display unit.
40 Citations
24 Claims
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1. An input apparatus for use in a portable device, comprising:
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a camera for capturing an image of a hand; a storage unit which stores a key-hand mapping table for mapping segments of a hand to a plurality of keys, respectively, according to predetermined criteria; a display unit which displays, in an input mode, the captured image thereon; and a control unit configured to; activate the camera during the input mode and control the display unit to display the captured image, display the plurality of keys mapped to the segments of the hand based on the key-hand mapping table, in response to detecting that a shape of the hand satisfies a predetermined condition, output a message requesting a change of the shape of the hand, in response to detecting that the shape of the hand does not satisfy the predetermined condition, in response to detecting an image change in one of the segments displayed on the display unit, input a key of the plurality of keys mapped to the segment where the image change is detected on the display unit, and in response to detecting, via the camera a particular change in the hand folding at least one finger while other fingers are extended, removing the displayed plurality of keys to display a numeric keypad mapped to at least some of the segments of the hand based on the key-hand mapping table. wherein the control unit controls the display unit to display a character input region displaying one or more characters inputted via the mapped plurality of keys, the character input region displayed separately from the mapped plurality of keys. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 22)
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11. An input method for use in a portable device, the method comprising:
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activating a camera during an input mode and displaying an image captured by the camera on a screen; determining whether a hand is recognized from the image; assigning a plurality of keys to segments of the hand based on predetermined criteria, in response to detecting that a shape of the hand satisfies a predetermined condition; outputting a message requesting a change of the shape of the hand, in response to detecting that the shape of the hand does not satisfy the predetermined condition; and detecting an image change in one of the segments and inputting the key mapped to the segment at which the image change is detected; and in response to detecting, via the camera, a particular change in the hand folding at least one finger while other fingers are extended, removing the assigned plurality of keys to display a numeric keypad mapped to at least some of the segments of the hand based on the predetermined criteria, wherein a character input region displaying one or more characters inputted via the assigned plurality of keys is displayed separately from the assigned plurality of keys on the screen. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 20, 23)
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19. An input method of a portable device, the method comprising:
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capturing an image during an input mode; recognizing a hand and segments of the hand of the captured image; mapping keys to the segments, in response to detecting that a shape of the hand satisfies a predetermined condition; outputting a message requesting a change of the shape of the hand, in response to detecting that the shape of the hand does not satisfy the predetermined condition; detecting an input of a key mapped to the segment via an input object, the input of the key being activated in response to a change in the image at a particular segment pointed by the input object; and in response to detecting a particular change in the folding at least one finger while other fingers are extended, removing the mapped keys from display to display a numeric keypad mapped to at least some of the segments tithe hand, wherein a character input region displaying the input of the key inputted via the mapped keys is displayed separately from the mapped keys. - View Dependent Claims (21, 24)
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Specification