User interface system based on pointing device

摘要

The user interaction system comprises a portable pointing device (101) connected to a camera (102) and sending pictures to a digital signal processor (120), capable of recognizing an object (130) and a command given by the user (100) by moving the pointing device (101) in a specific way, and controlling an electrical apparatus (110) on the basis of this recognition.

主权项

1. A user interaction system, comprising:
an electrical apparatus; a portable pointing device operable by a user for pointing to a region in space; a camera taking a picture, which camera is physically attached to the pointing device so that in operation it images the region pointed to without imaging the pointing device; a distributed digital signal processor, the digital signal processor being capable of receiving and processing the picture, and capable of transmitting user interface information derived from the picture to the electrical apparatus; at least one localization beacon that can emit electromagnetic radiation for use by the digital signal processor in order to recognize where the pointing device is pointing; wherein the digital signal processor estimates a motion or a motion trajectory of the pointing device; and, wherein said digital signal processor recognizes where the pointing device is pointing without imaging any electromagnetic radiation emitted from the pointing device itself.