Multi-point touch gesture recognition method and mistaken touch prevention method

A gesture recognition, multi-touch technology, applied in the field of human-computer interaction, can solve problems such as hindering the development and development of unified software, false touch, and inability to distinguish the touch pen and the finger well.

Pending Publication Date: 2021-06-25
安徽宝信信息科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, there are many problems in the interactive mode of multi-finger touch
For example, there are differences in the development of platform manufacturers of various operating systems, which in turn makes it difficult for developers in the software industry to switch between different platforms and operating systems, especially when developing multi-finger touch interaction methods on localized operating systems. Compatibility a

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
  • Multi-point touch gesture recognition method and mistaken touch prevention method
  • Multi-point touch gesture recognition method and mistaken touch prevention method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0046] Example 1

[0047]A multi-touch gesture identification method, such as figure 1 As shown, the method includes steps S1 to S6 as follows:

[0048] S1: Define the way to touch management, divide the canvas touches a gesture touch and draw touch.

[0049] Specifically, since the software canvas may be boundless, the area other than the current screen is not needed, and therefore, the canvas coordinate system is employed. At this time, for the touch operation like a touch pen, the mouse is defined as a single touch operation; for the touch operation of the finger, it can be divided into single touch and multi-point touch according to the touch point. Among them, single touch support: draw a note, etc.; multi-touch support: erase and other operations.

[0050] When the canvas is used to use a larger area, select the gesture touch state, translate and scale the canvas, so use the screen coordinate system.

[0051] S2: Define the status conversion process in the finite state machi...

Example Embodiment

[0078] Example 2

[0079] A multi-touch anti-aircraft contact method, first using the gesture identification method described in Example 1 to identify multi-point touch operations, and achieve anti-indication on the basis of precise identification. The specific process is:

[0080] Once there is a moving in the touch point in the same group, not only the packet is determined, but even if the touch point of this set is no longer exceeding the movement detection threshold, the state of the detection program scanned to the PRESS state, thereby determining the gesture or It is the operating state of the FSM for limited state machine, and no longer change before all fingers leave; once the finite state machine FSM is limited, the subsequent other touch behavior will also become the working state of the finite state machine FSM limited time, Unless all fingers leave, the limited state machine FSM allows change status to achieve a multi-touch anti-indication.

Example Embodiment

[0081] Example 3

[0082] A gesture identification and anti-indication system under a general platform, a gesture identification method designed to the above-described Embodiment 1 and an anti-aircraft design of the above-described Embodiment 2. First, build a general platform for each operating system, and then based on the platform, develop a geot gesture identification and anti-indication system under universal platform.

[0083] Specifically, based on Microsoft General Platform Frames XAMARIN Development Support for Android / IOS / Wind OWS and domestic operating systems; based on .NET Core is unified package package, packaging supports the ability to have every platform, lost The individual platforms have the advantages of building modern, scalable and high performance cross-platform software applications; if you need to support multi-platform versatility, use extended xamarin.essentials, develop their own platforms. The unique feature supported by the demand, where the exten...

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 a multi-point touch gesture recognition method and a mistaken touch prevention method, and the gesture recognition method comprises the steps: defining a canvas touch management mode, and dividing canvas touch into gesture touch and drawing touch; defining a state conversion process in a finite state machine (FSM) in a canvas mode; judging the touch number and the touch type according to the touch area and the touch pressure intensity; adding an ID field to each touch point, and tracking the change of the touch state; eliminating the touch jitter by moving the detection threshold according to the change of the tracking touch state; in combination with the set ID, carrying out touch grouping and realizing multi-point touch gesture recognition. According to the invention, drawing with multiple single fingers and eraser operation with more than three fingers can be supported at the same time, and the situation that the system can only work to identify single touch operation is broken through; moreover, through touch grouping, simultaneous single-finger drawing of multiple persons and simultaneous erasing operation of more than three fingers of multiple persons can be realized.

Description

technical field [0001] The present invention relates to the field of human-computer interaction, in particular to a multi-touch gesture recognition method and a false touch prevention method. Background technique [0002] With the advancement of the wave of intelligence, many industries have gradually entered the digital remote era. Drawing software similar to electronic whiteboards in large-scale display devices is widely used in related fields, especially education and teaching, live interaction and remote meetings. direction. The way of human-computer interaction is also from the most common keyboard, mouse and display, and the interaction method of multi-finger touch is additionally added. [0003] However, in the prior art, there are many problems in the multi-finger touch interaction mode. For example, there are differences in the development of platform manufacturers of various operating systems, which in turn makes it difficult for developers in the software indust...

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
IPC IPC(8): G06F3/041G06F3/0485G06F3/0486G06F3/0488
CPCG06F3/0414G06F3/0485G06F3/0486G06F3/04883G06F2203/04104G06F2203/04105G06F2203/04106G06F2203/04806G06F2203/04808G06F3/04162G06F3/04166G06F3/04186
Inventor 李广垒方田陈祖涛
Owner 安徽宝信信息科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap