发明名称 |
APPARATUS AND METHOD FOR MEASURING CALIPER OF CREPED TISSUE PAPER |
摘要 |
A method includes, using at least one processing device, obtaining an image of a web of creped tissue paper and identifying a caliper measurement of the web using the image. The caliper measurement is based on a dominant frequency of the web and a standard deviation of diffusely-reflected light from the web. The dominant frequency of the web can be based on a number of crepe folds having a dominant crepe fold size that fit within a specified unit distance of the web in the image. The dominant crepe fold size can be determined using a discrete auto-covariance function of the image or a second image of the web. The standard deviation can be based on a variation of reflected light from larger crepe structures in the web. |
申请公布号 |
US2015108375(A1) |
申请公布日期 |
2015.04.23 |
申请号 |
US201414222251 |
申请日期 |
2014.03.21 |
申请人 |
Honeywell International Inc. |
发明人 |
Kellomäki Markku;Paavola Antti |
分类号 |
G01B11/06 |
主分类号 |
G01B11/06 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method comprising:
using at least one processing device:
obtaining an image of a web of creped tissue paper; andidentifying a caliper measurement of the web using the image, the caliper measurement based on a dominant frequency of the web and a standard deviation of diffusely-reflected light from the web. |
地址 |
Morristown NJ US |