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Raisin color sorting detection method based on HSI (Hue-Saturation-Intensity) color features

A detection method and color feature technology are applied in the field of color sorting and detection of raisins, which can solve the problems of inconvenient operation and difficult setting of color sorting parameters, and achieve the effects of easy maintenance and operation, improved processing and sorting efficiency, and rapid detection.

Inactive Publication Date: 2013-04-10
TIANJIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems in the prior art that the color sorting parameters of raisins are not easy to set and the operation is inconvenient, and to provide a raisin color sorting detection method based on HSI color features, and to realize the color sorting and impurities of raisins by using machine vision technology. remove

Method used

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  • Raisin color sorting detection method based on HSI (Hue-Saturation-Intensity) color features
  • Raisin color sorting detection method based on HSI (Hue-Saturation-Intensity) color features
  • Raisin color sorting detection method based on HSI (Hue-Saturation-Intensity) color features

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Embodiment Construction

[0021] The device used in the method of the present invention is as figure 1 As shown, it includes light source, CCD acquisition chip and CCD drive signal amplification, ROM / RAM, DSP processor, man-machine interface, rejecting mechanism, etc.

[0022] The specific steps of the raisin color sorting detection method based on the HSI color feature of the present invention are as follows:

[0023] 1. The raisins are brightly and stably illuminated by the light source, which provides the necessary conditions for high-quality image acquisition;

[0024] The light source adopts high-frequency fluorescent lamps, and its frequency is above 50,000 Hz, which prevents flicker from causing image stripes and affecting image acquisition quality. The light source is driven by a high frequency drive circuit.

[0025] 2. The image is collected by the CCD acquisition chip, and the analog signal is output to the A / D, and the image digital signal converted by the A / D is sent to the DSP processor...

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Abstract

A raisin color sorting detection method based on HSI (Hue-Saturation-Intensity) color features is mainly characterized in that color detection on the raisins is performed by the machine vision technology and then the raisins are classified according to the colors, so that the commercial quality of the raisins is improved. Detection information is the color image information of the raisins; according to specific detection requirements, images acquired are transformed to an HSI space from an RGB space; an H component is utilized for processing; and the threshold setting process is simplified. The structure of a CPLD (Complex Programmable Logic Device) with a DSP (Digital Signal Processor) is employed to establish a raisin color sorting detection hardware platform, and the system integration, the detection speed and the reliability are improved.

Description

technical field [0001] The invention relates to a method for color sorting and detection of raisins, which uses a CCD camera to collect images of raisins, performs color detection and sorting of raisins in HSI color space according to Hue features, gives sorting signals, and controls the rejecting mechanism Separate raisins of different colors. Background technique [0002] Raisins, also known as grass dragon balls and rose apples, are the products of grapes air-dried and shade-dried. They are mainly produced in Xinjiang, Gansu, Shaanxi, Hebei, Shandong and other regions. They are a kind of food that is deeply loved by people. [0003] Depending on the variety and drying process, raisins can form green, yellow, brown, red and other colors. When they are first produced, they are often mixed with multiple colors, and the appearance is not good, which seriously affects the quality of their products. In order to improve the quality of its products, in Xinjiang and other places,...

Claims

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Application Information

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IPC IPC(8): B07C5/342G01J3/50
Inventor 朱均超韩芳芳李志伟
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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