High-speed strip steel surface image acquiring and image processing apparatus and method thereof

Abstract

The invention discloses a high-speed strip steel surface image acquiring and image processing apparatus and a method thereof. The input-output interface module (11) of the apparatus comprises a plurality of standard interfaces (111) or a standard network interface (112) for realizing connection with an image sensor, and an I / O interface (113) for realizing signal connection with onsite production and transmitting a signal to a speed signal integration module; the speed signal integration module (12) is used for carrying out frequency division or grouping of a production speed signal, and triggering a camera to acquire an image under speed pulse interval; an image acquisition interface module (13) receives image data output by the image sensor according to the interface protocol of the camera and accepts a signal output by the speed signal integration module; and an image processing module (14) is used for processing the image data transmitted by the image acquisition interface module, completes real-time abnormal image filtration and abnormal area detection functions, and outputs the surface image of abnormal strip steel through a standard network interface (114).

Description

technical field [0001] The invention relates to the field of machine vision detection, in particular to the field of on-line detection of the surface quality of strips by machine vision. Background technique [0002] The strip steel surface defect detection system uses images as the basic medium to collect, transmit and analyze images, calculate and evaluate the status of strip steel surface quality, and can generate quantitative and textual quality reports. With the continuous improvement of customers' requirements on the surface quality of strip steel and the continuous increase of production speed of strip steel (the maximum speed of cold rolling line reaches 1800 m / min), high-speed and fine imaging lead to a sharp increase in the amount of image data. While the key imaging devices can gradually increase the image acquisition speed, the inspection system is facing serious challenges in the transmission and processing capabilities of high-speed and massive image data. In ...

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Problems solved by technology

[0003] Existing patent documents were searched, but no documents directly aimed at the special image processing device for high-speed strip surface quality inspection technology were retrieved

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