System of recognizing quality of amphisarca in high speed based on machine vision

A machine vision and recognition system technology, applied in the field of agricultural machinery, can solve the problems that do not involve high-speed and real-time collection of inspected melons and fruits, and achieve the effect of increased speed and high resolution

Inactive Publication Date: 2005-05-25
SHANGHAI JIAOTONG UNIV
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Problems solved by technology

Its instruction manual only mentions that "through the recognition of computer vision recognition parts, the detection of all appearance quality indicators such as the shape, size, color, skin smoothness, fruit surface defects and damage of the fruit is completed at the same time", and it does not involve high-speed real-time detection in practical applications. Concrete method for accurately collecting omnidirectional images of inspected melons and fruits
However, the method of using traditional vertical light source irradiation, obtaining an all-round image of the outer surface of the fruit through the rotation of the measured melon and fruit, and using a computer to control the image acquisition card for image acquisition is difficult to be used in practical applications due to the limitations of current computer processing speed and hardware cost. High-speed acquisition of high-resolution melon and fruit images

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  • System of recognizing quality of amphisarca in high speed based on machine vision
  • System of recognizing quality of amphisarca in high speed based on machine vision

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[0017] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0018] Whole melon and fruit quality recognition system structure of the present invention is as follows figure 1 As shown, it consists of three parts: an image acquisition system 1 , an optical imaging system 2 and an optical fiber sensor 3 .

[0019] The optical imaging system 2 includes a light box housing 6 , a 220V lighting point light source 8 , a scattering ground glass 7 , a color CCD camera 9 , and a camera bracket 16 . Two cameras 9 are symmetrically installed on the camera bracket 16 fixed on the top of the light box shell 6, the angle between the cameras 9 is 120 degrees, and the normal distance to the surface of the fruit 15 to be checked is 15-20 cm. While ensuring the acquisition of complete fruit surface image information, image distortion caused by too close a distance between the fruit 15 and the camera 9 can be effectively ...

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Abstract

A high-speed melon and fruit quality recognition system based on machine vision, including an image acquisition system, an optical imaging system and an optical fiber sensor. The optical imaging system includes a light box with diffused frosted glass embedded in the inner wall, a color CCD camera and a point light source uniformly distributed inside the light box. On the left and right, the two image acquisition cards in the image acquisition system are respectively connected to the two cameras through video cables. The external trigger function of the image acquisition card is used to control the image capture by using the periodic level signal generated by the optical fiber sensor. The industrial computer The image processing unit performs subsequent processing on the image. The invention adopts external signal trigger control image acquisition, double CCD three-dimensional stereo vision and color image processing technology, and realizes high-speed, high-resolution and non-damaging discrimination of the external quality of melons and fruits.

Description

Technical field: [0001] The invention relates to a high-speed melon and fruit quality identification system based on machine vision, which uses external signal trigger control image acquisition, double CCD three-dimensional stereo vision and color image processing technology to realize high-speed, high-resolution and non-damaging discrimination of the external quality of melons and fruits , belongs to the field of agricultural machinery technology. Background technique: [0002] my country is a big fruit producing country, the output ranks first in the world, but the export volume only accounts for about 1% of the total output, and the trade volume only accounts for about 2% of the world's melons and fruits. The reason for this situation is that the production efficiency, comprehensive quality and commercialization level of fruit products in my country are low. Compared with developed countries, there are obvious gaps in many aspects: processed products account for a small p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B07C5/342G01N21/84
Inventor 曹其新郭峰付庄赵言正
Owner SHANGHAI JIAOTONG UNIV
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