| 摘要 |
The invention relates to a method for creatinga source imageof adetection region (12), wherein the position of at least one touch means (T1, T2, T3) within the detection region (12) can be gathered from the source image. The position of the touch means (T1, T2, T3) can be evaluated and tracked by means of tracking software. The invention is characterized in that the source image is created in that emitters (E) and sensors (S) for electromagnetic waves are provided, which are arranged around the detection region (12), wherein the emitters (E) are connected to the associated sensors (S) by beam paths (16). The replication of the touch means (T1, T2, T3) in the source image is carried out by evaluating the beam paths (16) that are interrupted by the touch means (T1, T2, T3). |
