| 摘要 |
An auto distinction system images an assembled fiber band such as a filter tow which continuously moves on the front side of a background plate by a video camera, applies sync-separating to a video signal by a sync-separating circuit 5 a, and clamps the video signal by a clamping circuit 5 b. Based on the clamped image signal, the characteristic information containing the defect information concerning the thickness, width and/or stains of the assembled fiber band is detected, and the defect information is extracted from the detected characteristic information. Thus suitability of the assembled fiber band is discriminated. For example, the clamped image signal is supplied to a noise-eliminating circuit 6 a and a defect signal concerning the thickness of the assembled fiber band is extracted. Based on the extracted signal and a reference signal with respect to the information, suitability of the defect information is discriminated by a distinction circuit 7 . When the results of distinction are defective, the results are announced by an announcing circuit 8 . Furthermore, the characteristic information can be used for process control by being supplied to an external computer. The present invention provides an auto distinction system and an auto distinction method with which suitability of the width, thickness, and stain of a continuously moving assembled fiber band can be accurately discriminated.
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