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Keyboard appearance detection method and device, and electronic system

A technology of appearance detection and keyboard, which is applied in the field of image processing, can solve the problems of large and complex templates, waste of manpower and material resources, etc., and achieve the effect of improving operation efficiency, reducing waste of manpower and material resources, and reducing the time of manual operation

Inactive Publication Date: 2019-12-20
NANJING KUANYUN TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process of making the above-mentioned template library is very complicated, and the staff needs to manually cut out the keyboard area in the keyboard picture as a template picture; and there are many types of keyboards, and the amount of templates required is also very large. Therefore, to detect keyboards through templates The way of appearance wastes a lot of manpower and material resources

Method used

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  • Keyboard appearance detection method and device, and electronic system
  • Keyboard appearance detection method and device, and electronic system
  • Keyboard appearance detection method and device, and electronic system

Examples

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Embodiment 1

[0034] First, refer to figure 1 An example electronic system 100 for implementing the keyboard appearance detection method, device and electronic system according to the embodiments of the present invention will be described.

[0035] Such as figure 1 A schematic structural diagram of an electronic system is shown, the electronic system 100 includes one or more processing devices 102, one or more storage devices 104, input devices 106, output devices 108 and one or more image acquisition devices 110, these components The interconnections are via bus system 112 and / or other forms of connection mechanisms (not shown). It should be noted that figure 1 The components and structures of the electronic system 100 shown are exemplary rather than limiting, and the electronic system may also have other components and structures as required.

[0036] The processing device 102 may be a gateway, or an intelligent terminal, or a device including a central processing unit (CPU) or other f...

Embodiment 2

[0043] This embodiment provides a keyboard appearance detection method, which is executed by the processing device in the electronic system; the processing device may be any device or chip capable of data processing. The processing device can independently process the received information, or can be connected with a server to jointly analyze and process the information, and upload the processing results to the cloud. Such as figure 2 As shown, the keyboard appearance detection method includes the following steps:

[0044] Step S202, acquiring the picture of the keyboard to be tested and the keyboard drawing corresponding to the picture of the keyboard to be tested; wherein, the keyboard drawing carries position information of keyboard characters.

[0045] The picture of the keyboard to be tested is usually a photo of a keyboard taken by a camera, and the drawing of the keyboard corresponding to the picture of the keyboard to be tested is usually a drawing of the keyboard cor...

Embodiment 3

[0058] This embodiment provides another keyboard appearance detection method, which is described above figure 2 Realize on the basis of the shown embodiment; Present embodiment emphatically describes the specific process of determining the position information of the keyboard characters carried in the keyboard drawing, and the specific process of detecting the corresponding keyboard of the keyboard picture to be tested; as image 3 Shown; The method specifically includes the following steps:

[0059] Step S302, performing binarization processing on the keyboard drawing corresponding to the keyboard picture to be tested; wherein, in the processed keyboard drawing, the pixel values ​​of the edges of the keyboard characters and keycap areas are lower than a preset threshold.

[0060] The above binarization processing can also be called image binarization, which is usually the process of setting the grayscale value of the pixels on the image to 0 or 255, that is, the process of p...

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Abstract

The invention provides a keyboard appearance detection method and device, and an electronic system. The method includes steps: obtaining a to-be-detected keyboard picture and a keyboard drawing corresponding to the to-be-detected keyboard picture; determining a standard position from the keyboard drawing and determining a specified position in the to-be-detected keyboard drawing according to position information of keyboard characters in the keyboard drawing; determining a transformation matrix corresponding to the to-be-detected keyboard picture according to the standard position and the specified position; locating the keyboard characters in the to-be-detected keyboard picture through the transformation matrix and the position information of the keyboard characters; and comparing the keyboard characters located in the to-be-detected keyboard picture and the keyboard characters on the corresponding positions in the keyboard drawing to detect the keyboard corresponding to the to-be-detected keyboard picture. According to the method, the to-be-detected keyboard drawing and the keyboard drawing are compared, the process of making a template library is omitted, the operating efficiency of the system is improved, the time for manual operation is reduced, and the waste of manpower and material resources is reduced.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a keyboard appearance detection method, device and electronic system. Background technique [0002] In the production and assembly process of the keyboard, problems such as misprinted characters and keycap assembly errors are prone to occur. Therefore, it is necessary to perform defect detection on the appearance of the keyboard to ensure the quality of the keyboard production. In the keyboard appearance defect detection method in the related art, it is usually necessary to use the keyboard picture to create a template library, and compare the template picture with the keyboard picture to detect whether the keyboard appearance is defective. However, the process of making the above-mentioned template library is very complicated, and the staff needs to manually cut out the keyboard area in the keyboard picture as a template picture; and there are many types of keyboards, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88G06F3/02
CPCG01N21/8851G06F3/0202G01N2021/8887
Inventor 张宏毅宋仁杰魏秀参
Owner NANJING KUANYUN TECH CO LTD