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Board card image stitching method, processing device and system

An image splicing and processing device technology, which is applied in image data processing, graphic image conversion, instruments, etc., to achieve high image splicing speed and efficiency, and simple cutting and splicing processes.

Inactive Publication Date: 2016-02-17
GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on this, it is necessary to provide a board image splicing method, processing device and system for the problem that it is difficult to obtain the overall and undistorted image of the larger board in the automatic optical inspection system.

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  • Board card image stitching method, processing device and system
  • Board card image stitching method, processing device and system
  • Board card image stitching method, processing device and system

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Embodiment Construction

[0031] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0032] In one example, see figure 1 As shown, a board image splicing method includes the following steps:

[0033] S100 acquires a partial image of the board collected by the camera device;

[0034] In this step, see figure 2 The schematic diagram of the camera device collecting partial images of the board is shown, the camera device is located directly above the board, and the camera device collects the obtained partial images according to a fixed distance interval in the same direction. To illustrate this step in detail, use image 3 The shown rectangular board is taken as an example. In the direction parallel to one side of the board (such as side AB), the camera device collects a partial image of the board at intervals of a fixed distance. The board captured by the camera device each time The partial image...

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Abstract

The invention relates to a board card image stitching method, a processing device and a system. The method comprises steps: local images of the board card acquired by a camera device are acquired, the local images are acquired by the camera device according to a fixed distance interval in the same direction, and adjacent local images in the same direction have overlapped regions; after distortion correction is carried out on each local image, each edge of each local image is cut, and a standard local image corresponding to each local image is acquired; and according to the relative position relation of each standard local image on the board card, the standard local images are stitched into a board card image. The board card image stitching method provided by the invention is not limited by the size of the board card, the standard local images obtained after cutting can be directly stitched into a board card image according to the relative position relation on the board card, image stitching is simpler, more convenient and more effective, and the image stitching speed and the efficiency are high.

Description

technical field [0001] The invention relates to the field of automatic optical detection, in particular to a board image splicing method, processing device and system. Background technique [0002] The board is an important device with data acquisition function and data input / output. It is widely used in many fields such as automatic machinery, electronic industry, security monitoring, and computer. The placement and soldering of components on the board The quality of the board will affect the overall performance of the board. Therefore, in actual industrial production, the components and solder joints of the board must be inspected to eliminate defective or wrong boards. In the field of board card detection technology, the automatic optical inspection system obtains the image of the board card to be tested through a high-precision camera, and combines image processing technology to analyze the difference between the image of the board card to be tested and the image of the ...

Claims

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Application Information

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IPC IPC(8): G06T3/40
CPCG06T3/40G06T3/4038
Inventor 廖明熙
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD