INPUT DEVICE, DISPLAY DEVICE, INPUT METHOD, DISPLAY METHOD, AND PROGRAM
First Claim
1. An input device comprising:
- an image acquisition section that obtains an image of an object for supplying information to a display device of an apparatus, the image being obtained by bringing the object into touch with a screen of a display device of an apparatus or by bringing the object closer to the screen of the display device to a position capable of detecting the object without touching the screen, the display device being formed of a device including an image pickup device and picture elements;
a computing section that computes a center-of-gravity position of the object using the image of the object obtained by the image acquisition section; and
an information generating section that generates information for operating the apparatus based on a displacement of the center-of-gravity position of the object corresponding to movement of the object, as the input information from the object.
1 Assignment
0 Petitions
Accused Products
Abstract
An image acquisition section 105 obtains an image of a finger by bringing the finger into touch with a display 13 formed of a device including an image pickup device and picture elements or by bringing the finger closer to the display without touching the display. A computing section 120 determines a center-of-gravity position of the finger, based on the obtained image of the finger. An information generating section 125 generates information for operating the cellular phone based on a displacement of the center-of-gravity position of the finger r. A determination section 115 determines whether the finger has touched the screen or not, based on the touch area between the finger and the screen. A display section 130 displays a virtual sign 14 indicating a reference point for subsequent movement of the finger, at a first position that the finger has touched the screen.
88 Citations
27 Claims
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1. An input device comprising:
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an image acquisition section that obtains an image of an object for supplying information to a display device of an apparatus, the image being obtained by bringing the object into touch with a screen of a display device of an apparatus or by bringing the object closer to the screen of the display device to a position capable of detecting the object without touching the screen, the display device being formed of a device including an image pickup device and picture elements; a computing section that computes a center-of-gravity position of the object using the image of the object obtained by the image acquisition section; and an information generating section that generates information for operating the apparatus based on a displacement of the center-of-gravity position of the object corresponding to movement of the object, as the input information from the object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 26)
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15. A display device comprising:
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an image acquisition section that obtains an image of an object for supplying information to a display device of an apparatus, the image being obtained by bringing the object into touch with a screen of the display device or by bringing the object closer to the screen of the display device to a position capable of detecting the object, without touching the screen, the display device being formed of a device including an image pickup device and picture elements; a computing section that computes a center-of-gravity position of the object based on the image of the object obtained by the image acquisition section; an information generating section that generates information for operating the apparatus, based on a displacement of the center-of-gravity position of the object corresponding to movement of the object; a determination section that determines whether the object has approached the display device to the position capable of being detected without touching the screen or has touched the display device, based on brightness of the image of the object obtained by the image acquisition section; and a display section that displays a virtual sign at a position first determined by the determination section that the object has touched the display device or at the position first determined by the determination section that the object has approached the display device without touching the screen, as a reference point for subsequent movement of the object. - View Dependent Claims (16, 17, 27)
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18. A display device comprising:
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a display section that displays at least one fixed virtual sign at a fixed position on a screen of the display device formed of a device including an image pickup device and picture elements, the at least one fixed virtual sign serving as a reference point when an object for supplying information approaches or touches the display device; an image acquisition section that obtains an image of the object by bringing the object into touch with the at least one fixed virtual sign or by bringing the object closer to the at least one fixed virtual sign to a position capable of detecting the object, without touching the screen; a computing section that computes a center-of-gravity position of the object based on the image of the object obtained by the image acquisition section; and an information generating section that generates information for operating the apparatus, based on a displacement of the center-of-gravity position of the object corresponding to movement of the object. - View Dependent Claims (19, 20, 21, 22, 23)
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24. An information input method comprising the steps of:
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bringing an object for supplying information into touch with a screen of a display device or bringing the object closer to the screen of the display device to a position capable of detecting the object without touching the screen, thereby obtaining an image of the object, the display device being formed of a device including an image pickup device and picture elements; computing a center-of-gravity position of the object based on the obtained image of the object; and generating information for operating an apparatus including the display device, as input information from the object, based on a displacement of the center-of-gravity position of the object corresponding to movement of the object.
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25. A display method comprising the steps of:
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bringing an object for supplying information into touch with a screen of a display device or bringing the object closer to the screen of the display device to a position capable of detecting the object without touching the screen, thereby obtaining an image of the object, the display device being formed of a device including an image pickup device and picture elements; computing a center-of-gravity position of the object based on the obtained image of the object; generating information for operating an apparatus including the display device, based on a displacement of the center-of-gravity position of the object corresponding to movement of the object; obtaining brightness of the obtained image of the object and determining whether the object has approached the display device without touching the screen or has touched the display device, based on the obtained brightness; and displaying a virtual sign at a position first determined that the object has touched the display device or at the position first determined that the object has approached the display device without touching the screen, as a reference point for subsequent movement of the object.
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Specification