Characterization method and system for threshing and redrying tobacco sheet shapes

A technology for red-cured tobacco and tobacco sheets, which is applied in image data processing, instruments, calculations, etc., can solve problems such as inaccurate representation of threshed and red-cured tobacco sheets.

Active Publication Date: 2020-03-17
CHINA TOBACCO GUIZHOU IND
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a characterization method and system for the shape of threshed and recured tobacco sheet, which solves the problem of inaccurate cha

Method used

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  • Characterization method and system for threshing and redrying tobacco sheet shapes
  • Characterization method and system for threshing and redrying tobacco sheet shapes
  • Characterization method and system for threshing and redrying tobacco sheet shapes

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Embodiment Construction

[0044] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.

[0045] Since the shape of the tobacco sheet directly affects the quality of the shreds during threshing and redrying, the current characterization of the shape of the tobacco sheet is inaccurate. The invention provides a method and system for characterizing the sheet shape of threshing-leaf red-cured tobacco sheet. The image of the sheet is obtained by taking pictures of the sheet, and the measured area and the length and width of the minimum circumscribed rectangle are obtained according to the image of the tobacco sheet. The length and width of different standard graphic areas are calculated, and the area ratio of the measured area to the standard graphic area is used as the shape representation of the smoke sh...

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Abstract

The invention provides a characterization method and system for threshing and redrying tobacco sheet shapes, and the method comprises the steps: carrying out the photographing of threshed and redriedtobacco sheets, so as to obtain a tobacco sheet image; performing image processing on the tobacco sheet image to obtain a tobacco sheet contour; determining the actual measurement area of the tobaccosheets and the length a and the width b of the minimum enclosing rectangle according to the tobacco sheet contours; calculating different standard graph areas by taking the length a and the width b ofthe minimum enclosing rectangle as basic parameters, wherein the standard areas comprise a circular standard area, a rectangular standard area, an elliptical standard product, a rhombic standard areaand a triangular standard area; and taking the area ratio of the actual measurement area to different standard pattern areas as the shape characteristic value of the tobacco sheet shape. According tothe invention, the accuracy of tobacco sheet shape detection can be improved, and the stability of cigarette quality is improved.

Description

technical field [0001] The present invention relates to the technical field of tobacco processing, in particular to a method and system for characterizing the shape of threshed and recured tobacco sheets. Background technique [0002] With the continuous deepening of research on cigarette processing technology, the quality of threshing and redrying has become the focus of attention of cigarette industry enterprises. Threshing and redrying is an important link that affects the quality stability and uniformity of tobacco sheets. A large number of studies have shown that the shape of tobacco sheets after threshing and redrying has a greater impact on the shredding process. Therefore, it is necessary to detect the shape of the tobacco sheet after threshing and redrying. [0003] In the past, limited by the testing conditions, the relevant standards of the tobacco industry and the "Cigarette Technical Specifications (2016 Edition)" did not summarize and describe the shape of the...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/13G06T7/62
CPCG06T7/0004G06T7/13G06T7/62Y02P90/30
Inventor 杨洋许洪庆韩磊欧明毅吴有祥刘素参张力元张亚恒吕大树潘俊闽龚霜王东飞彭黔荣胡世龙
Owner CHINA TOBACCO GUIZHOU IND
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