Cable apparent image defect detection device

A defect detection and image technology, applied in the field of image processing and hardware implementation of image processing, can solve the problems of limited image processing system speed, poor computer portability, poor real-time performance, etc., to achieve low cost, fast processing speed, real-time performance strong effect

Inactive Publication Date: 2015-08-19
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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AI Technical Summary

Problems solved by technology

At present, when using a general-purpose computer to complete the image processing process, the general-purpose computer executes instructions in a serial manner. For the processing of large amounts of data, there are disadvantages of slow speed and poor real-time performance; and the computer is poor in portability.
Using the embedded method of ARM+DSP, the process control and human-computer interaction are realized on the

Method used

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  • Cable apparent image defect detection device

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings.

[0011] A cable apparent image defect detection device includes a zynq processing platform and an off-chip DDR3 memory; the zynq processing platform includes an ARM part, an FPGA hardware processing part and a bus interconnection part; the ARM part is a dual-core ARM Cortex- A processing system (Processing System, PS) of the A9 multi-core processor, the ARM part configures the working mode of the VDMA and the memory control module through the AXI_lite protocol, and completes the boundary tracking and target recognition algorithms in the image processing step.

[0012] The FPGA hardware processing part is implemented using programmable logic (Programmable Logic, PL) on the zynq chip, including a synchronous trigger module, a camera link interface module, a median filter module, a sobel edge detection module, a threshold segmentation module, a morphological filter module, ...

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Abstract

The invention discloses a cable apparent image defect detection device, which comprises a zynq processing platform and an off-chip DDR3 memory, wherein the zynq processing platform comprises an ARM part, an FPGA hardware processing part and a bus interconnecting part. The cable apparent image defect detection device is used for detecting wire apparent defects, adopts a high-speed camera for imaging cable apparent, is connected to a system through a camera link interface, and finally sends defected images after marking to an HDMI display for displaying results through six image processing steps including median filtering, sobel edge detection, threshold value segmentation, morphological filtering, boundary tracing and target recognition. The cable apparent image defect detection device implements parts of image processing algorithms including median filtering, sobel edge detection, threshold value segmentation and morphological filtering on hardware, and substantially improves the image processing speed.

Description

technical field [0001] The invention relates to the field of image processing, in particular to the field of hardware implementation of image processing. technical background [0002] Wire is an important raw material in modern industrial production, and its surface quality greatly affects the performance of the final product. During the production process, due to various factors such as raw material selection and processing technology, defects such as pores, scratches, and pitting will inevitably appear on the surface of the wire. These defects not only affect the appearance of the wire, but also cause serious quality problems in the use of the wire. Therefore, it is necessary to detect its apparent defects in the process of cable production. At present, general-purpose computers execute instructions serially in the process of image processing using general-purpose computers. For the processing of large amounts of data, there are disadvantages of slow speed and poor real-...

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Application Information

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IPC IPC(8): G06T1/00G06T7/00
Inventor 刘霖谭沛岩付大鹏王耀杰任程辉谢煜易少宾张静刘娟秀叶玉堂刘永
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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