Image processing method for optical touch system
    3.
    发明授权
    Image processing method for optical touch system 有权
    光学触摸系统的图像处理方法

    公开(公告)号:US09170682B2

    公开(公告)日:2015-10-27

    申请号:US13446896

    申请日:2012-04-13

    IPC分类号: G06F3/042 G06F3/041

    CPC分类号: G06F3/0421 G06F3/0416

    摘要: An image processing method for an optical touch system includes the steps of obtaining an image and generating a light distribution curve pattern from the image, selecting a target signal of the light distribution curve pattern in accordance with light intensity information of the light distribution curve pattern, determining at least one rising slope and at least one falling slope of the target signal, and selecting the target signal as an object signal when the absolute values of the at least one rising slope and at least one falling slope are greater than a threshold.

    摘要翻译: 一种用于光学触摸系统的图像处理方法包括以下步骤:从图像获得图像并产生光分布曲线图案,根据光分布曲线图案的光强度信息选择配光曲线图案的目标信号, 确定所述目标信号的至少一个上升斜率和至少一个下降斜率,并且当所述至少一个上升斜率和至少一个下降斜率的绝对值大于阈值时,选择所述目标信号作为对象信号。