INFORMATION INPUT APPARATUS
First Claim
1. An information input apparatus comprising:
- a semi-transparent screen that functions as an operator input manipulation surface;
pickup means for picking up an input manipulation of an operator on the semi-transparent screen by capturing only light or electromagnetic waves in a predetermined wavelength range that comes through the semi-transparent screen, to thereby produce a pickup signal; and
control processing means for generating detection image information corresponding to the input manipulation of the operator based on the pickup information, and for executing a control process based on input manipulation information that is recognized based on the detection image information.
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Abstract
There are provided an infrared LED panel for always applying infrared light to the back surface of a semi-transparent screen, a CCD camera for capturing only infrared light coming from the semi-transparent screen, and a projector for projecting an image onto the semi-transparent screen (with light not including infrared light). When a user performs a manipulation on the front side of the semi-transparent screen, the quantity of reflected infrared light varies. A control device picks up a variation in reflection light quantity as detection image information based on an imaging signal of the CCD camera. Further, in accordance with manipulation information that is obtained based on the detection image information, the control device executes controls necessary for, for instance, switching of an interface image to be displayed on the semi-transparent screen. A manipulation method may be in such a form as to cause a variation in detection image information through reflection of infrared light. Interactive input/output with various manipulation methods is thus enabled.
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Citations
18 Claims
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1. An information input apparatus comprising:
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a semi-transparent screen that functions as an operator input manipulation surface;
pickup means for picking up an input manipulation of an operator on the semi-transparent screen by capturing only light or electromagnetic waves in a predetermined wavelength range that comes through the semi-transparent screen, to thereby produce a pickup signal; and
control processing means for generating detection image information corresponding to the input manipulation of the operator based on the pickup information, and for executing a control process based on input manipulation information that is recognized based on the detection image information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification