Industrial reaction kettle liquid level separation method based on histogram and LBP characteristic fusion
A technology of feature fusion and industrial response, applied in image analysis, image enhancement, image data processing, etc., can solve problems such as affecting the quality of pure liquid, not lasting for a long time, and mixing in.
Inactive Publication Date: 2018-07-31
HANGZHOU DIANZI UNIV
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[0003] In actual production, as far as the refining process of a certain oily substance is concerned, after the oily substance is sent into the reactor, the change of the liquid level state during the refining process is a gradual process, but the duration of this process is not very long. Therefore, it is very important to make an instant judgment on the change process, especially when refining pure oily liquid. If the judgment is not made in time, the turbid oily liquid will be mixed in, which will seriously affect the quality of the pure liquid.
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[0048] The present invention will be further described below in conjunction with drawings and embodiments. .
[0049] Such as Figure 1(a)-2(e) As shown, the present invention proposes a kind of industrial reactor based on the fusion of histogram and LBP features through the color difference in the liquid state in the reactor, and through the feature extraction of the color features and LBP in different states of the liquid. liquid surface separation method.
[0050] The present invention first Figure 1(a)-Figure 1(e) The five categories shown in the five images are quickly and accurately identified and judged. What Fig. 1 (a) shows is that certain oily matter enters the initial state of observation zone in the reactor; What Fig. 1 (b) shows is that when certain oily matter just enters the observation interval, part of this oily matter is stained with reaction kettle container edge; Fig. 1(c) shows the relatively pure oil in the reactor; Figure 1(d) shows the formation of ...
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The invention discloses an industrial reaction kettle liquid level separation method based on histogram and LBP characteristic fusion. The method comprises the following steps of step1, through a camera, acquiring an original input single frame image; step2, in the input single frame image acquired through the camera, using a color histogram algorithm to extract and acquire the color histogram characteristic of the input single frame image, and simultaneously, in the input single frame image, using an LBP algorithm to extract and acquire an LBP characteristic; and step3, fusing the calculatedcolor histogram characteristic and the LBP characteristic, through a KNN algorithm, carrying out processing, and acquiring the determination of a grease liquid level state. In the invention, through amulti-characteristic fusion mode, the liquid level state changes in a reaction kettle can be accurately determined, and simultaneously, the liquid state changes in the reaction kettle can be rapidlyand accurately determined in a short time. The method has an advantage that an image characteristic does not need to be learnt in advance.
Description
technical field [0001] The invention belongs to the field of industrial detection and control, and relates to a method for separating the liquid level of an industrial reactor based on the fusion of histogram and LBP features. Background technique [0002] Reactors are widely used in petroleum, chemical, rubber, pesticides, dyes, medicines, food, pressure vessels used to complete vulcanization, nitration, hydrogenation, alkylation, polymerization, condensation and other processes. Various chemical reactions and changes in the liquid level of reactants. In the process of industrial production, the inside of the reactor is a closed space. The inside of the reactor needs to control the reaction process or the process of product extraction. Whether it is the reaction process or the product extraction process, usually there will be Along with the change of its liquid level state and the change of color in the process, through the change of liquid level state and color, the contr...
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Login to View More IPC IPC(8): G06T5/20G06T5/40G06T7/90G06K9/62
CPCG06T5/20G06T5/40G06T7/90G06F18/24147
Inventor 曹九稳吴泽王建中
Owner HANGZHOU DIANZI UNIV