公开(公告)号：US20170052647A1

公开(公告)日：2017-02-23

申请号：US15346082

申请日：2016-11-08

Applicant: PIXART IMAGING INC.

Inventor： Tzung Min SU ,  Ren Hau GU ,  Chih Hsin LIN ,  Cheng Nan TSAI

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/0425 ,  G06F3/0416

Abstract: An image processing method includes obtaining a background picture including a first and second pixel, wherein the first pixel has a first intensity value in response to that a first sensing element is operated by a fixed exposure time, and the second pixel has a second intensity value in response to that a second image sensing element is operated by the fixed exposure time; extracting the first and second intensity value from the first and second pixel, respectively; performing a computing operation including computing a first exposure time and a second exposure time; and operating the first image sensing element by the first exposure time and the second image sensing element by the second exposure time after the computing operation.

Abstract translation: 一种图像处理方法包括获得包括第一和第二像素的背景图像，其中第一像素具有响应于第一感测元件以固定曝光时间操作的第一强度值，并且第二像素具有第二强度值 响应于第二图像感测元件以固定曝光时间操作; 分别从第一和第二像素提取第一和第二强度值; 执行包括计算第一曝光时间和第二曝光时间的计算操作; 以及在所述计算操作之后的所述第二曝光时间，通过所述第一曝光时间和所述第二图像感测元件操作所述第一图像感测元件。

公开(公告)号：US20160092032A1

公开(公告)日：2016-03-31

申请号：US14963382

申请日：2015-12-09

Applicant: Pixart Imaging Inc.

Inventor： Tzung Min SU ,  Cheng Nan TSAI ,  Chih Hsin LIN

IPC: G06F3/042

CPC classification number: G06F3/0421 ,  G06F3/0428 ,  G06F2203/04104

Abstract: An optical touch screen system includes a sensing device and a processing unit. The sensing device includes first and second sensors, each generating an image. The images include the image information of a plurality of objects. The processing unit generates a plurality of candidate coordinates according to the image information and selects a portion of the candidate coordinates as output coordinates according to an optical feature of the image information.

Abstract translation: 光学触摸屏系统包括感测装置和处理单元。 感测装置包括第一和第二传感器，每个传感器产生图像。 图像包括多个对象的图像信息。 处理单元根据图像信息产生多个候选坐标，并根据图像信息的光学特征选择候选坐标的一部分作为输出坐标。