| 摘要 |
<p>PURPOSE:To simplify pointing operation by constituting the title system so that when a notice point is indicated directly with a rod, etc., in which a pointer of a specific color has been attached to the tip in a television conference system, etc., coordinate data of this position is detected and sent to the receiving side. CONSTITUTION:When a state that a notice point of data 1 has been indicated by using a rod 30 in which a blue ball has been attached to the tip is brought to image pickup by a camera 2, data which has scanned an image which has been brought to image pickup is inputted successively to a color coincidence detector 7-1 using a chroma keyer, etc., for obtaining an output which has omitted a blue part of a specific color, and an address counter 9 of a coordinate data generating part 8. In the color coincidence detector 7-1, when the scanned data becomes blue, a color coincidence signal is sent to a pointer graphic detector 7-2 which has stored a circular graphic. Subsequently, in the pointer graphic detector 7-2, when the color coincidence signal coincides with the stored circular graphic, a signal of an H level is sent to an AND circuit 10. In such a way, by indicating directly the notice point with the rod 30 in which the blue ball has been attached to the tip, a pointer graphic can be generated at the same position of the data displayed on a display device 6 of the receiving side, therefore, the pointing operation is simplified.</p> |
