Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Anti-interference touch identification method and device

A recognition method and touch point technology, applied in the field of image processing, can solve problems such as misjudgment, achieve the effect of simple operation, fast processing speed, and avoid misjudgment

Active Publication Date: 2011-02-16
南通卓效自动化有限公司
View PDF3 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, touch point recognition is the key. However, when users operate, they usually touch their sleeves or other body objects to the touch panel. At this time, when analyzing the captured images, they often touch these sleeves or other objects Objects on the body are also regarded as touch points, which will cause misjudgment

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
  • Anti-interference touch identification method and device
  • Anti-interference touch identification method and device
  • Anti-interference touch identification method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0044] The invention provides an anti-jamming touch point identification device, comprising

[0045] An image capturing unit, that is, a camera, is used to capture touch images;

[0046] The image preprocessing unit is used to perform binarization processing on the captured image, preliminarily exclude non-touch point bright spots in the touch image by setting the area size range of the touch point, and may further include denoising the captured image ;

[0047] The similarity judging unit is used for judging the similarity between the bright spot in the captured image and the finger ellipse, and determining the final touch point.

[0048] Such as figure 1 As shown, an anti-jamming touch point recognition method of the present invention comprises the following steps: ...

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 anti-interference touch identification method comprising the following steps of: (S1) starting a camera to shoot a touch image; (S2) carrying out binaryzation processing on the touch image; (S3) carrying out the primary elimination on non-touch point bright spots in the touch image; and (S4) determining a final touch point through judging the similarity of the bright spots in the taken image and the finger ovality. The invention also provides an anti-interference touch identification device comprising an image shooting unit, an image preprocessing unit and a similarity judgment unit. The invention can effectively identify the real touch point and avoids the mistake judgment caused by non-touch point interference, such as the mistake judgment caused by the reason that sleeves or other devices on the body touch a touch panel. Simultaneously, the invention also has the advantages of simple operation, high processing speed and the like.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an anti-interference touch point recognition method and device. Background technique [0002] In the existing touch technology, there is a multi-point touch device positioned by a camera, which can effectively and quickly identify multiple touch points by capturing images through the camera and performing image analysis. [0003] For example, the publication number is CN200810065714.5, which discloses "multi-point and object touch screen device and multi-touch positioning method", through touch panel, infrared LED, projection soft screen, infrared camera, projector, controller and computer execution instruction processor , install infrared LEDs around the transparent touch panel, and use the principle of internal emission to envelop all infrared light. When an object touches the panel, the total reflection is destroyed, and the infrared camera behind the panel captures this bright...

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 Applications(China)
IPC IPC(8): G06F3/042G06K9/22G06K9/60
Inventor 夏团利江志和钟杰婷
Owner 南通卓效自动化有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com