Supercharge Your Innovation With Domain-Expert AI Agents!

Optical touch system and image processing method thereof

An optical touch and image processing technology, applied in electrical digital data processing, the input/output process of data processing, instruments, etc., can solve the problem that the range of brightness changes cannot be correctly determined or differentiated, and the target coordinates cannot be accurately determined. computing problems

Inactive Publication Date: 2016-06-01
PIXART IMAGING INC
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This difference will cause the range with obvious brightness changes to be unable to be correctly determined or clearly distinguished, so that the target coordinates cannot be accurately calculated

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optical touch system and image processing method thereof
  • Optical touch system and image processing method thereof
  • Optical touch system and image processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] figure 1 A schematic diagram of an optical touch system 1 according to an embodiment of the present invention is shown. The invention discloses an image processing method, which can use a single image to calculate the coordinates of the target. This image processing method can be used in the figure 1 The optical touch system 1 shown. refer to figure 1 As shown, the optical touch system 1 includes an image sensing module 11 and a processing module 12 , wherein the processing module 12 is coupled to the image sensing module 11 to analyze the target range from the image generated by the image sensing module 11 . The image sensor module 11 is configured to capture a touch area 13 . The illuminating devices 14 and 15 are arranged beside the touch area 13 to provide a light source, so that the target on the touch area 13 can form a recognizable target range on the image. The lighting device 14 or 15 can be an active lighting device, such as a lamp tube, a plurality of LE...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an optical touch system and an image processing method thereof. The system comprises an image sensing module and a processing module. The image sensing module comprises a plurality of sensing units capable of controlling shutter time independently, and the sensing units can acquire an image with multiple pixel sets. The processing module acquires a brightness value of each pixel set and selects part of the pixel sets as a target range according to the multiple brightness values.

Description

technical field [0001] The present invention relates to optical touch technology, and in particular to an optical touch system and an image processing method thereof. Background technique [0002] A general optical touch system includes a camera device, an illumination device, and a computing device for determining the touch position of an object. The target can typically be a finger, stylus or the like. The photographing device is used to photograph the touch area on the touch surface. The illuminating device is used for when the target is on the touch area, the image provided by the photographing device has a contrast that can distinguish the target image. The calculating device calculates the coordinates of the target according to the brightness change of the image provided by the photographing device. [0003] The optical touch system can be designed so that the target protruding into the touch area blocks the light projected by the lighting device to form a light shi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/042
Inventor 苏宗敏古人豪林志新蔡政男
Owner PIXART IMAGING INC
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com