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Method, device and equipment for identifying touch point

A touch point and touch area technology, applied in the field of infrared recognition, can solve the problems of large memory usage, small optimization space, and low computing efficiency, and achieve the effect of large memory usage and high computing efficiency

Pending Publication Date: 2022-07-01
SHENZHEN TIMELINK ECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a method, device and equipment for identifying touch points, which can solve the problem that the image processing method for identifying touch points has relatively low computational efficiency, occupies a large amount of memory, and has little optimization space

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  • Method, device and equipment for identifying touch point
  • Method, device and equipment for identifying touch point

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Embodiment Construction

[0064] In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are set forth in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0065] It is to be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described feature, integer, step, operation, element and / or component, but does not exclude one or more other The presence or addition of features, integers, steps, operations, elements, components and / or sets thereof.

[0...

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Abstract

The invention is applicable to the technical field of infrared recognition, and provides a method for recognizing a touch point, which comprises the following steps: acquiring information of shielding lines, traversing first up-down shielding lines, and determining a first central point according to intersection points of the first up-down shielding lines and each first left-right shielding line; determining the non-shielding line closest to the first center point as a first target line segment, and determining a first touch radius according to the distance between the first center and the first target line segment; determining a first touch area according to the first center point and the first touch radius, determining a first up-down direction shielding line passing through the first touch area as a traversed first up-down direction shielding line, and obtaining a next non-traversed first up-down direction shielding line, and returning to execute the step of determining the first center point according to the intersection points of the first up-and-down direction shielding line and the first left-and-right direction shielding lines. According to the method, the touch point is determined by traversing the shielding line, the operation efficiency is relatively high, the occupied memory is small, and the method is more efficient and more accurate.

Description

technical field [0001] The present application belongs to the technical field of infrared recognition, and in particular relates to a method, device and device for recognizing a touch point. Background technique [0002] In the prior art, a multi-touch algorithm can be used when recognizing touch points on an infrared image, among which an image processing algorithm is more commonly used. The image processing algorithm is to create corresponding small squares for each frame of infrared images, and then classify the squares into those with infrared rays passing through and those without infrared rays passing through, and selecting the squares without infrared rays passing through is the search for touch points. The first action. The image processing algorithm has high accuracy in finding touch points, can handle multi-touch scenes and supports large and small touch points. [0003] However, since the image processing method needs to create a small image square that consumes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042
CPCG06F3/0421
Inventor 邓华芹刘浩明
Owner SHENZHEN TIMELINK ECHNOLOGY CO LTD
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