A method and apparatus for determining one or more physical properties of a rolled smoking article or filter rod

摘要

A method of and apparatus for determining one or more physical properties of a rolled smoking article (10) or filter rod (14) are disclosed. The method comprises disposing a rolled smoking article or filter rod within a field of view, illuminating said field of view, and imaging said rolled smoking article or filter rod within said field of view to form an image. The image is analysed to determine the wrapping direction of an outer layer of said rolled smoking article or filter rod.