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Visual detection system and method

A visual inspection and to-be-inspected technology, applied in the field of visual inspection, can solve the problems of increased inspection cost, difficulty in distinguishing different defects, and the target to be inspected is easily affected by dust.

Active Publication Date: 2018-05-01
SHENZHEN A&E INTELLIGENT TECH INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are generally two problems in the process of industrial visual inspection: one is that the surface of the object to be inspected is easy to deposit dust, and the object to be inspected is often easily affected by dust, so it needs to be inspected in a dust-free environment, which increases the inspection cost; the other The object to be detected usually contains multiple defects, and it is difficult to effectively distinguish different defects

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  • Visual detection system and method

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] see figure 1 , figure 1 is a schematic structural diagram of a visual inspection system according to an embodiment of the present invention. The visual inspection system of this embodiment includes light sources 111 and 112 , an image acquisition device 12 and a processor 13 . Among them, the light sources 111, 112 are used to provide illumination for the object 14 to be detected, the image acquisition device 12 is used to collect images of the object...

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Abstract

The invention relates to a visual detection system and method. The method comprises the steps: a first detection image (21, 31) and a second detection image (22, 32) of a to-be-detected object (14) are acquired in different lighting conditions and / or shooting conditions (S11); mathematical operation is performed on luminance values of corresponding positions of the first detection image (21, 31) and the second detection image (22, 32), and a to-be-detected target and interference on the to-be-detected object (14) are distinguished (S12). The synthesis of two detection images acquired in different lighting conditions and / or shooting conditions is utilized to effectively distinguish the to-be-detected target and the interference.

Description

technical field [0001] The embodiments of the present invention relate to the field of visual inspection, in particular to a visual inspection system and method. Background technique [0002] Industrial visual inspection generally collects images of the object to be inspected, and performs image recognition on the collected images, and identifies predetermined targets, such as scratches, cracks and other defects, from the image of the object to be inspected. At present, there are generally two problems in the process of industrial visual inspection: one is that the surface of the object to be inspected is easy to deposit dust, and the object to be inspected is often easily affected by dust, so it needs to be inspected in a dust-free environment, which increases the inspection cost; the other The object to be detected usually contains multiple defects, and it is difficult to effectively distinguish different defects. Contents of the invention [0003] In order to at least ...

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Application Information

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IPC IPC(8): G01N21/88
CPCG01N21/8806G01N21/8851G01N2021/8887
Inventor 阳光郝少华牛立涛
Owner SHENZHEN A&E INTELLIGENT TECH INST CO LTD