Method for acquiring section image of asphalt pavement core sample

Abstract

The invention discloses a method for acquiring a section image of asphalt pavement. In the method, image acquisition is performed under a set lighting condition by aligning a linear array camera with an asphalt pavement core sample rotating at a constant speed on a bearing platform so as to acquire the section image of the asphalt pavement core sample with relatively less distortion. The method comprises the following steps of: building the bearing platform of the asphalt pavement core sample; disposing an image acquisition component; placing the asphalt pavement core sample to be acquired ona bearing disc; and after the asphalt pavement core sample rotates at the constant speed, triggering an acquisition signal to acquire and store the section image of an asphalt mixture and storing theacquired section image in a computer for subsequent processing. The method has the advantages of eliminating the distortion caused by the shooting from different angles and splicing of a digital camera, taking the place of the conventional methods for acquiring the image of the asphalt pavement core sample and improving the detection precision in a subsequent process for detecting the compositionof the asphalt mixture based on image analysis.

Description

technical field [0001] The invention relates to the collection of asphalt core sample cross-sections, in particular to an image collection method for asphalt pavement core sample cross-sections. Background technique [0002] Asphalt pavement has been widely used in high-grade highways in our country because of its series of advantages. Asphalt mixture is the component material of asphalt pavement. In the process of asphalt pavement construction, the composition detection of asphalt mixture is an important aspect of construction quality process control. Tests related to the composition and performance of asphalt mixtures occupy a considerable amount of work in the laboratory and on the construction site. In particular, the test and detection method for the composition of asphalt mixture, the detection equipment is bulky, the operation process is complicated, time-consuming, laborious, low detection accuracy and other reasons restrict the development of asphalt pavement. ...

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