Method for measuring looseness of tobacco leaves

• Main Authors: XIE ZHIQIANG, YANG HONGMING, ZHAO WEI, CHEN JIANMING, ZHANG WEI, LIU XINRUITONG
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention discloses a method for measuring the porosity of tobacco leaves. The method comprises the following steps: acquiring the weight m of the tobacco leaves by using a weight acquisition device; using an image acquisition device to acquire a completely unfolded tobacco leaf picture; identifying the tobacco leaf picture to obtain the outline of the tobacco leaf; calculating the area S of the contour; and calculating the tobacco leaf porosity P = m/S according to the tobacco leaf weight m and the tobacco leaf area s. The intelligent tobacco leaf porosity measuring method is suitable for completely unfolded tobacco leaves, the tobacco leaf porosity can be accurately quantified through a pure vision method, and powerful support is provided for automatic tobacco leaf grading. 本发明公开了一种烟叶疏松度的测量方法，包括以下步骤：使用重量采集装置采集烟叶的重量m；使用图像采集装置采集完全展开的烟叶图片；对烟叶图片进行识别得到所述烟叶的轮廓；计算所述轮廓的面积S；根据烟叶重量m和烟叶面积s计算得到烟叶疏松度P＝m/S。本发明的智能化的烟叶疏松度的测量方法适用于完全展开的烟叶，通过纯视觉方法，能够准确的量化烟叶疏松度，为自动化烟叶分级提供了有力的支撑。