초록 ▼

An inspection station irradiates a moving cigarette with a one or more strobed arrays of infrared LEDs. The infrared radiation which passes through the cigarette is received by a video camera, which forms a digital image of the cigarette. A computer then detects the edges of the digital image of the

An inspection station irradiates a moving cigarette with a one or more strobed arrays of infrared LEDs. The infrared radiation which passes through the cigarette is received by a video camera, which forms a digital image of the cigarette. A computer then detects the edges of the digital image of the cigarette and determines therefrom the length of the filter, hollow acetate tube, void chamber, tobacco plug, as well as the overall length of the cigarette. The computer then compares these measurements with expected standard values of these sections, and outputs the comparison results to the user using various display formats. According to exemplary aspects, the present invention delivers the cigarettes one at a time to the video camera using a parts handling system. The parts handling system comprises a infeed bin for storing a batch of cigarettes, and for dispensing a cigarette to a carriage positioned beneath the infeed bin. The carriage then transports the cigarette placed thereon between the strobing infrared LED arrays and the video camera, which together provide an image of the cigarette. The carriage then transports the cigarette to an output bin, where a diverter blade knocks the cigarette off the carriage and into the output bin.

대표청구항 ▼

[ What is claimed is:] [1.] A system for inspecting cigarettes, comprising:a radiation source for directing a beam of electromagnetic radiation through a cigarette;a video camera for receiving said electromagnetic radiation after said radiation passes through said cigarette, and for generating an im

[ What is claimed is:] [1.] A system for inspecting cigarettes, comprising:a radiation source for directing a beam of electromagnetic radiation through a cigarette;a video camera for receiving said electromagnetic radiation after said radiation passes through said cigarette, and for generating an image therefrom;processing logic for analyzing said image, said processing logic including edge detection logic for detecting edges corresponding to boundaries between different sections of said cigarette, within said image; andcalculation logic for calculating respective lengths of said sections of said cigarette based on said detected edges.