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Segmentation of the cut tobacco strands as an example for the extraction of the whole sample holder field. (a) and (b): the original images of cut tobacco strands and their segmentation results, respectively; (c) and (d): the images of cut tobacco strands and their segmentation results after having been processed with Mean-shift algorithm, respectively.
Source publication
The width of cut tobacco strands is an important indicator for physical parameters as well as for the smoking quality. In some countries, cut width helps to distinguish fine-cut tobacco and pipe tobacco and thus differentiates taxation rate. A new method for rapid measurement of the width of cut tobacco strands was developed based on digital image...
Contexts in source publication
Context 1
... strands tested in this work were mainly yellow or brown, the background board was black. The originally collected and rectified image of the cut tobacco strands is shown in Figure 3 (a). Typically, when the strands' images needed to be segmented, the colored images were first converted into grayscale images. ...
Context 2
... there are several similar colors between the strands and the background due to pigmentation of the strands and imaging angles. These lead to relatively poor results of segmentation with noise and breakages as shown in Figure 3 (b). ...
Context 3
... this algorithm is applied, a minimum threshold value of pixels merged needs to be set, which depends on the contrast between targeted area and background area within the image. The processed images after applying the Mean-shift algorithm are shown in Figure 3 (c) and (d). It is clear that the Mean-shift algorithm exhibited better segmentation results and fitted well with the original shape of the tested tobacco strands. ...
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Professionals in the field of taxation have an important contribution to manage tax in a country. A country's biggest income comes from taxes. Indonesia is one of the countries with the largest economic growth in the world. Therefore, the potential for taxes received will certainly be large. For the amount of taxes received to be managed well, it r...
Citations
... Tong et al. 11 designed an online machine vision measurement device that integrates technologies such as simulating manual grasping, visual image measurement, and automatic material feeding, when compared with traditional offline weighing and manual measurement methods, it showed significant advantages in automation and high precision. Liu et al. 12 established a tobacco strand width measurement method characterized by digital image processing technology, through the mean shift algorithm, the segmentation and extraction of tobacco strand width are realized, offering rapid response and high precision. However, the image-based measurement methods used by Tong and Liu involve converting image detection data into microscopic measurement dimensions of tobacco strands, and the current national detection standard YC/T 178-2003 13 explicitly points out that there is a significant difference between the calculation method that uses tobacco cut mass on different mesh sizes to measure size proportion of cut tobacco. ...
In the tobacco processing stage leading to the production of cigarettes, there are strict technical requirements for the structure and proportion of different lengths of cut tobacco following the cutting process. Moreover, the lightweight design of the high-speed rotary-cutting blades is of significant importance during this stage. To better address issues related to the rational design of the blade structure in rotary-cutting cutters and the effective control of size proportion of cut tobacco, this paper establishes a CLSC blade design method featuring concave-convex edges and inter-edge grooves, and provides specific structural schemes. By introducing the structure of the cutting components of the cutter and the cutting process, and by analyzing the differences in layout features between RSEC and CLSC blade structures, as well as their relevance to tobacco cutting and shaping, this paper establishes the installation constraints and mechanical load model for cutter blades under rated conditions. Finite element methods were used to model and analyze both types of cutter blade structures, yielding static and modal analysis data. Furthermore, production verification was conducted on an SD EVO cutter, and data on the rate of different lengths of cut tobacco were obtained. The results show that the mass of the CLSC concave-convex edge cutter blade was reduced by 4.33%, and the static stiffness efficiency was increased by 2.37 times. Although the first-six natural frequencies of the CSLC blade showed degradation in modal analysis, it still met the equipment vibration usage condition. The production verification results indicated that the use of CLSC concave-convex edge cutter blades reduced the long cut rate by 2.48%, increased the medium cut rate by 2.29%, broken cut rate increased by 0.08%, and increased the short cut rate by 0.12%, with an overall reduction in the whole cut rate by 0.19%, achieving the objectives of reducing the long cut rate, controlling the whole cut rate, and not increasing the broken cut rate. The CLSC blades were able to operate continuously, stably, and safely on the rotary-cutting cutter machine. The research presented in this paper can provide a reference for the analysis and design of cutter blade structures in tobacco cutter machines.
