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Pointer type instrument reading automatic identification method and system based on genetic algorithm

A technology of automatic identification and genetic algorithm, which is applied in the field of automatic identification method and system of pointer instrument indication number, and can solve the problem that parameters are difficult to be determined manually

Active Publication Date: 2019-12-31
XIANGTAN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problems existing in the prior art that the identification of pointer instruments in complex environments has limitations, and the parameters involved are difficult to be determined manually, the present invention provides a method and system for automatic identification of pointer instrument indications based on genetic algorithms, which can Adaptively adjust the parameters to truly solve the problems in the real scene, making the automatic recognition of the indication number of the pointer instrument more intelligent and efficient

Method used

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  • Pointer type instrument reading automatic identification method and system based on genetic algorithm
  • Pointer type instrument reading automatic identification method and system based on genetic algorithm
  • Pointer type instrument reading automatic identification method and system based on genetic algorithm

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Embodiment 1

[0077] like figure 1 As shown, this embodiment provides a method for adaptively adjusting parameters based on a genetic algorithm to adapt to the automatic identification of pointer instrument indication numbers in a specific environment, which specifically includes the following steps:

[0078]Step 101: Generate a natural population; the natural population includes a plurality of individuals, the individuals represent parameters involved in the pointer edge line detection process, and the parameters include an accumulator threshold, a minimum length threshold, and a maximum allowable interval.

[0079] Step 102: Construct a sample data set; the sample data set includes a plurality of preprocessed front-facing pointer meter training images, and the front-facing reading and pointer deflection angle of each front-facing pointer meter training image.

[0080] Step 103: Based on the parameters of each individual representative, use the Hough linear transformation algorithm to dete...

Embodiment 2

[0125] like figure 2 As shown, a kind of automatic recognition system based on genetic algorithm of pointer instrument indication number provided by this embodiment includes:

[0126] The natural population generation module 201 is used to generate a natural population; the natural population includes a plurality of individuals, the individual represents parameters involved in the pointer edge line detection process, and the parameters include an accumulator threshold, a minimum length threshold and a maximum allowable interval .

[0127] The sample data set construction module 202 is used to construct a sample data set; the sample data set includes a plurality of preprocessed front-facing pointer meter training images, and the front-facing reading and pointer deflection angle of each front-facing pointer meter training image.

[0128] The automatic recognition display number set determination module 203 is used to detect all the preprocessed front-view pointer instrument tr...

Embodiment 3

[0158] In this embodiment, 3 clear images of face-on pointer meters are used as training samples, and 5 groups of images of face-up pointer meters in different environments are used as test samples. The specific conditions are as follows:

[0159] (1) Clearly face up to the image of the pointer instrument.

[0160] (2) Salt and Pepper Noise Face up to the pointer instrument image.

[0161] (3) Gaussian fuzzy front view pointer instrument image.

[0162] (4) Stains face up to the pointer instrument image.

[0163] (5) Front view pointer instrument image in dim environment.

[0164] Among them, steps 1-3 are parameters adaptive adjustment process, such as image 3 shown; Steps 4-6 are the automatic recognition process of the pointer instrument image face-up reading, such as Figure 4 shown.

[0165] Step 1: Select 3 clear front-facing pointer instrument images with different readings and their pointer deflection angles and front-facing readings as training samples, such as ...

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Abstract

The invention discloses a pointer type instrument reading automatic identification method and system based on a genetic algorithm, and relates to the technical field of genetic algorithms and computervision. The pointer type instrument reading automatic identification method mainly comprises the following steps: adaptively adjusting parameters involved in a pointer edge straight line detection process of a front-view pointer instrument image through a genetic algorithm; and then, according to the adjusted parameters and a Hough linear transformation method algorithm, detecting the front-viewpointer type instrument image after image preprocessing, and automatically identifying the front-view reading of the front-view pointer type instrument image, so that the problems in a real scene aretruly solved, and the automatic identification of the indication of the pointer type instrument is more intelligent and efficient.

Description

technical field [0001] The invention relates to the technical fields of genetic algorithm and computer vision, in particular to a method and system for automatic recognition of indication numbers of pointer instruments based on genetic algorithm. Background technique [0002] Pointer instruments have been widely used in industrial and testing fields due to their advantages of high precision, convenient reading, and strong stability. With the rapid development of industrialization and the continuous expansion of production scale, the use of pointer meters has increased sharply. The traditional way of reading meters, that is, manual interpretation, is obviously time-consuming and laborious, and the accuracy cannot be guaranteed. Furthermore, human society has entered the information age, and all walks of life tend to be intelligently managed. Intelligent management of pointer instruments has become an inevitable requirement for future development. However, the traditional poi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46G06N3/12
CPCG06N3/126G06V20/10G06V10/44G06V2201/02
Inventor 邹娟郭格裴廷睿郑金华李海博张海陈圣琪杨圣祥
Owner XIANGTAN UNIV
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