Invention Grant
- Patent Title: Image processing method for optical touch system
- Patent Title (中): 光学触摸系统的图像处理方法
-
Application No.: US13446896Application Date: 2012-04-13
-
Publication No.: US09170682B2Publication Date: 2015-10-27
- Inventor: Tzung Min Su , Yu Chia Lin , Teng Wei Hsu , Chih Hsin Lin , Cheng Nan Tsai
- Applicant: Tzung Min Su , Yu Chia Lin , Teng Wei Hsu , Chih Hsin Lin , Cheng Nan Tsai
- Applicant Address: TW Hsin-Chu
- Assignee: Pixart Imaging Inc.
- Current Assignee: Pixart Imaging Inc.
- Current Assignee Address: TW Hsin-Chu
- Agency: Bacon & Thomas PLLC
- Agent Juan Carlos A. Marquez
- Priority: TW100112922A 20110414
- Main IPC: G06F3/042
- IPC: G06F3/042 ; G06F3/041
Abstract:
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.
Public/Granted literature
- US20120262423A1 IMAGE PROCESSING METHOD FOR OPTICAL TOUCH SYSTEM Public/Granted day:2012-10-18
Information query
