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Method for detecting paving uniformity of asphalt pavement mixture based on binocular vision

An asphalt pavement, binocular vision technology, applied in image data processing, instruments, calculations, etc., can solve the problems of low degree of automation, poor anti-interference ability, low recognition accuracy, etc., to avoid the interference of human subjective factors, The test results are objective and the effect of rapid automatic detection

Pending Publication Date: 2020-08-18
四川公路工程咨询监理有限公司
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Problems solved by technology

[0005] In order to overcome the problems existing in the prior art, the present invention provides a binocular vision-based detection method for the paving uniformity of asphalt pavement mixture, which effectively solves the problems of low degree of automation and low identification accuracy existing in the existing detection methods , poor anti-interference ability, and realize real-time detection of asphalt pavement pavement uniformity

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  • Method for detecting paving uniformity of asphalt pavement mixture based on binocular vision
  • Method for detecting paving uniformity of asphalt pavement mixture based on binocular vision
  • Method for detecting paving uniformity of asphalt pavement mixture based on binocular vision

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Embodiment Construction

[0053] In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.

[0054] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or im...

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Abstract

The invention discloses a method for detecting paving uniformity of an asphalt pavement mixture based on binocular vision. The method includes the steps: acquiring a left color digital image and a right color digital image of an asphalt pavement at the same time through two cameras, and then sequentially carrying out graying processing, median filtering processing, distortion correction, three-dimensional correction, asphalt pavement model construction, parallax optimization, normalization, binary image construction, exclusive area radius calculation and segregation coefficient calculation. Compared with the prior art, the interference of human subjective factors is avoided, and the detection result is more objective, meanwhile, the interference of factors such as illumination and color onthe detection result is reduced, and rapid automatic detection can be achieved.

Description

technical field [0001] The invention relates to the technical field of non-destructive testing, in particular to a binocular vision-based detection method for paving uniformity of asphalt pavement mixture. Background technique [0002] Segregation of asphalt mixture may occur during pavement paving. Segregation refers to the uneven distribution of coarse and fine aggregates and asphalt content in asphalt mixture. Segregation will lead to differences between the actual gradation and design gradation in the local area of ​​asphalt pavement, reduce the performance of the pavement, and make the pavement easier Early disease occurs, reducing the durability of the pavement. [0003] At present, the detection methods of asphalt pavement mixture paving uniformity mainly include manual visual inspection, sand laying method and nuclear density meter method, in addition, there are automatic identification methods using digital image processing technology. The detection results of the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/40G06T5/00G06T7/136G06T7/187G06T7/33G06T7/66G06T7/90
CPCG06T7/0004G06T7/337G06T5/40G06T7/136G06T7/90G06T7/187G06T7/66G06T2207/20032G06T2207/30108G06T2207/10012G06T5/80G06T5/70
Inventor 何力周志林范安军李树鼎黄亚磊杨现茂敬修权
Owner 四川公路工程咨询监理有限公司
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