Projector-camera system having interaction screen

A projector and screen technology, applied in the field of interactive screens, can solve problems such as multi-power

Inactive Publication Date: 2015-04-29
OMNIVISION TECH INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Larger touchscreen displays also requi

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  • Projector-camera system having interaction screen
  • Projector-camera system having interaction screen
  • Projector-camera system having interaction screen

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Embodiment Construction

[0020] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one of ordinary skill in the art that the specific details need not be employed to practice the invention. In other instances, well-known materials or methods have not been described in detail to avoid obscuring the present invention.

[0021] Reference throughout this specification to "one embodiment," "an embodiment," "an example," or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example includes In at least one embodiment of the invention. Thus, appearances of the phrases "in one embodiment," "in an embodiment," "an example," or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures or characterist...

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Abstract

A projector-camera system includes a projector coupled to back project a first image on a translucent diffusing screen. A camera is coupled to capture a second image from a back side of the translucent diffusing screen. The second image includes the first image back projected on the translucent diffusing screen and a shadow of a pointing device cast on a front side of the translucent diffusing screen. The pointing device is on the front side of the translucent diffusing screen and is in close proximity to the translucent diffusing screen. A processing block is coupled to the projector and the camera to generate a third image including the shadow of the pointing device. The processing block is further coupled to activate a command in a main computer coupled to the processing block in response to a relative position of the shadow of the pointing device in the third image.

Description

technical field [0001] The present invention relates generally to an interactive screen, and more particularly to a projector-camera system with an interactive screen. Background technique [0002] Tablet computers have become increasingly popular. Tablet computers typically include a flat touchscreen display and no mechanical keyboard. Tablet computers are typically thin, flat 3D rectangular shapes that can be held or placed on top of a desk or other support surface. In addition to performing routine computing tasks such as word processing and scientific computing, tablet computers are also commonly used for gaming and other applications that require interaction between the user and the computer through a touchscreen display. [0003] Larger touchscreen displays can sometimes enhance the user's interaction with the computer. However, the cost of a flat display increases exponentially as the size of the display increases. Larger touch screen displays may require larger g...

Claims

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Application Information

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IPC IPC(8): H04N9/31H04N5/74
CPCG06F3/0416G06F3/0425G06F3/038
Inventor 哈桑·加德扎利李津单继璋
Owner OMNIVISION TECH INC
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