Red wine semi-finished product motion detection system for real-time image analysis

Abstract

The invention discloses a red wine semi-finished product motion detection system based on real-time image analysis. A background difference method is improved, the current image and the background image difference are used for detecting the motion foreground, and a motion target detection algorithm based on background modeling is adopted; the method is composed of video acquisition, conversion of a dynamic image sequence, preprocessing, background modeling, foreground detection and extraction of a motion background, image processing of residues is identified by applying selective filtering, homomorphic filtering, wavelet multi-scale edge detection and a surface area calculation method, and a parallel algorithm DSP real-time image detection system is used, so that the detection speed can be greatly improved, a more reliable, convenient and efficient measurement method is provided for red wine semi-finished products, the measurement method is simple and rapid, the measurement result is accurate, the device is not easy to damage and age under heavy interference and corrosive conditions, and the system has good real-time performance, flexible system architecture, convenient control interface, huge practical value and wide application prospect.

Description

technical field [0001] The invention relates to a motion detection system for semi-finished red wine, in particular to a motion detection system for semi-finished red wine with real-time image analysis, belonging to the technical field of image analysis and detection. Background technique [0002] Real-time image processing technology has developed rapidly in recent years. Its development enables all image processing problems to be solved by digital signal processing, which endows image processing technology with a new connotation of real-time, and also greatly expands the scope of application of this technology. Due to the large amount of information contained in the image, if you want to obtain a more ideal real-time image processing effect, you must first have a main processor with excellent performance and speed. In addition, the parallel architecture using multiple processors and threads is also Two important prerequisites, the advent of the famous CM2 connection machi...

AI Technical Summary

Problems solved by technology

[0006] First, the motion detection system for semi-finished red wine is a very important part of the red wine production line. Its detection accuracy will directly affect the quality of red wine production. When the fermented red wine flows out of the fermentation furnace, a certain amount of fermentation raw materials will be mixed into it. To form a red wine mixture, the key task is to remove the residue in the mixture and make a qualified red wine finished product. The filter screen of the prior art can initially filter out a part of the residue, but the qualified product cannot be formed through the filter screen. This is because the filter screen is too strict. , the clogging speed is too fast, which affects the production speed; even if the pure solution passes through the filter, the red wine liquid that has just finished fermentation will condense in the detection channel to form new residues. The existing technology lacks a high-efficiency and high-quality filter. The detection equipment detects the red wine solution, and the detection accuracy cannot be guaranteed, which is not conducive to improving the quality of red wine;

[0007] Second, although the prior art method of infrared measurement of semi-finished red wine with a photoelectric sensor is relatively simple, the measurement result is not accurate enough, and because the accuracy of the infrared device must be ensured first when the equipment is assembled, the electronic device is prone to damage under heavy interference and corrosive conditions. Damage and aging have greatly reduced its reliability, and the replacement of devices is very frequent and cumbersome, and the actual use value is not high;

[0008] Third, the real-time performance of the detection of semi-finished red wine products in the prior art is poor. In the simulated detection in the laboratory, the processing speed of the semi-finished red wine detection system in the prior art can only reach 20 to 45ms / frame, and the flow rate of the red wine samples in the detection channel is about 75cm / s, the shooting interval of the camera is 100ms, which cannot meet the speed requirements of real-time detection of the system, seriously restricts the production efficiency of red wine, and the detection speed cannot meet the normal production needs;

[0009] Fourth, the system architecture of the existing technology is rigid, the control interface is cumbersome, the system cannot be directly connected to the PCI slot of the industrial control microcomputer system, and the industrial control microcomputer cannot form a master-slave system, the system architecture is rigid, and the control is troublesome. At the same time, the data collected by the system camera The original signal cannot be directly transmitted to the program interface of the host computer through the A / D device, it is difficult to observe the actual industrial testing environment, it is cumbersome to compare with the testing results, the function debugging takes a long time, the interface control is cumbersome, and the real-time image cannot be accurately analyzed. The detection efficiency of semi-finished products is low, and the system portability is poor;

[0010] Fifth, without using morphological pre-processing for image filtering and multi-scale wavelet transform for image edge extraction, it is impossible to combine multi-degree and wavelet transform information, and it is impossible to obtain satisfactory edge extraction results. The system is not universal. Practical research shows that the existing technology performs poorly in occasions that require high-level calculations and large amounts of data, and the image analysis system of the existing technology cannot be used in the field of semi-finished red wine inspection

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