Fruit grading system and method based on DSP machine vision

Abstract

The invention discloses a fruit grading system and a method based on DSP machine vision. The system comprises a DSP machine vision system, a man-machine interactive system, a conveying module, a grading trigger module and the like. The method comprises the following steps: a camera acquires fruit images to a DSP video processing system, and the DSP video processing system identifies the external feature information of the fruit; the fruit information is supplied to grading software installed in an industrial personal computer through a PCI interface; and the grading software distinguishes the grade of the current fruit according to the fruit information and the fruit grade information preset by the user through a man-machine interactive module, and finally transmits a triggering signal to an actuating mechanism to carry out grading. The image acquisition and image processing tasks are executed by the special DSP high-speed image processing system, the DSP system adopts the fruit grading method of the invention, and the DSP system and the industrial personal computer transmit data by using the high-speed PCI interfaces, so the fruit grading speed and grading accuracy are greatly enhanced.

Description

technical field [0001] The invention relates to a machine vision-based fruit grading system and a fruit grading method using the system, belonging to the technical field of fruit processing. Background technique [0002] At present, the fruit grading system based on machine vision is to collect the fruit image on the assembly line through the CCD camera, and transmit the fruit image data to the industrial computer for image processing through the image acquisition card, so as to obtain the relevant parameters of the external quality of the fruit, and then according to these The parameters are graded by the extension software installed on the industrial computer, and the grade trigger signal of each fruit is sent to the trigger device of the corresponding grade fruit outlet, so as to realize the grade of fruit. However, the images of this type of system generally need to pass through CCD imaging, data acquisition cards, and A / D converters to enter the computer, and then call ...

AI Technical Summary

Problems solved by technology

However, the images of this type of system generally need to pass through CCD imaging, data acquisition cards, and A / D converters to enter the computer, and then call the application program to process the data through the operating system. On the one hand, the transmission of data wastes a lot of clock cycles, and on the other hand The image processing algorithms related to the aspect are all executed in the computer, which will inevitably occupy a large number of clock cycles, resulting in low real-time performance of the fruit grading system and reducing the grading efficiency of fruit grading

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