System and method for displaying tracked objects on a display device
    2.
    发明授权
    System and method for displaying tracked objects on a display device 失效
    用于在显示设备上显示被跟踪对象的系统和方法

    公开(公告)号:US06275236B1

    公开(公告)日:2001-08-14

    申请号:US08788519

    申请日:1997-01-24

    IPC分类号: G06T1160

    摘要: A system and method for displaying tracked objects on a display is disclosed The method includes writing current location and a number of previous locations of the object with pixel values having non-zero overlay data. The system writes an ordered set of codes into the pixel values for the current location and indicates the set to a driver. The driver uses the overlay data displaying the current and several previous object locations sequentially in order of the set. The displayed locations may be displayed by unmasking the overlay data. The codes may be index values in the pixel values indicating corresponding entries in a pixel interpretation table. A driver may modify mask values in the table entries to mask or unmask overlay data in associated pixel values. The system can display many tracked objects simultaneously, without high CPU utilization or a program to draw, erase, and redraw tracked objects.

    摘要翻译: 公开了一种用于在显示器上显示跟踪对象的系统和方法。该方法包括使用具有非零重叠数据的像素值来写入当前位置和多个先前位置的对象。 系统将有序的代码集写入当前位置的像素值,并将其指定给驱动程序。 驾驶员按照该组的顺序使用显示当前和几个以前的对象位置的叠加数据。 显示的位置可以通过揭开覆盖数据来显示。 代码可以是指示像素解释表中的相应条目的像素值中的索引值。 驱动程序可以修改表条目中的掩码值,以掩蔽或取消屏蔽相关像素值中的覆盖数据。 系统可以同时显示许多跟踪对象,而不需要高CPU利用率或者绘制,擦除和重绘跟踪对象的程序。