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    Engraving system and method comprising improved imaging
    1.
    发明授权
    Engraving system and method comprising improved imaging 失效
    雕刻系统和方法包括改进成像

    公开(公告)号：US06348979B1

    公开(公告)日：2002-02-19

    申请号：US09083816

    申请日：1998-05-22

    申请人： David Flannery ,  David R. Seitz ,  Thomas P. Staub ,  Matthew A. Thomas

    发明人： David Flannery ,  David R. Seitz ,  Thomas P. Staub ,  Matthew A. Thomas

    IPC分类号： B41C104

    CPC分类号： B41C1/02 ,  B41C1/04 ,  B41C1/045 ,  B44B3/009 ,  B44B3/061 ,  G01B11/024 ,  G05B19/401 ,  G05B2219/33078 ,  G05B2219/37358 ,  G05B2219/37572 ,  G05B2219/37574 ,  G05B2219/45163 ,  G05B2219/45178 ,  G05B2219/45212 ,  G05B2219/49235 ,  G05B2219/50057 ,  H04N1/06 ,  H04N1/0671 ,  H04N1/19 ,  H04N1/4005

    摘要： An error detection apparatus and method for use with engravers, such as gravure engravers. An error value E corresponding to the difference between a set of predetermined setup parameters and actual measurement of a portion of an engraved area on the cylinder is determined. The error value E is then used to adjust the engraver to engrave an actual cut or etch in accordance with the set of predetermined setup parameters. Advantageously, an error detection and correction system is suitable for providing a closed-loop system for engraving a cylinder. The apparatus and method may be used during initial setup or during normal operation of the engraver. Other features include an autofocus routine to facilitate the auto-focus procedure. Also, image processing is further enhanced by gap filling, discontinuity removal, and light calibration methods which may be used alone, in combination with each other, or in combination with the automatic focus system and/or automatic shoe system. Other embodiments of the invention illustrate the use of a polarizing element to polarize reflected light, as well as light directed to a surface of the cylinder prior to reflection, and the use of a light emitting diode (LED) for illuminating the surface of the cylinder. The features of the improved optic system facilitate reducing or eliminating image noise, such as glare, “blooming”, inconsistent illumination, and enhances the quality of the image captured by a CCD array associated with the camera used in the imager or imaging system.

    摘要翻译： 一种与雕刻机一起使用的误差检测装置和方法，例如凹版印刷机。 确定对应于一组预定设置参数与圆筒上雕刻区域的一部分的实际测量之间的差异的误差值E. 然后使用误差值E来调整雕刻器以根据预定的设置参数的集合雕刻实际的切割或蚀刻。 有利地，错误检测和校正系统适于提供用于雕刻圆柱体的闭环系统。 该装置和方法可以在初始设置期间或在雕刻机的正常操作期间使用。 其他功能包括自动聚焦程序，以方便自动对焦程序。 此外，通过间隙填充，不连续性去除以及可以单独使用，彼此组合使用或与自动聚焦系统和/或自动鞋系统组合使用的光校准方法进一步增强图像处理。 本发明的其它实施例示出了偏振元件在反射之前偏振反射光以及指向气缸表面的光的使用，以及使用用于照亮气缸表面的发光二极管（LED） 。 改进的光学系统的特征有助于减少或消除图像噪声，例如眩光，“开花”，不一致的照明，并且增强由与成像器或成像系统中使用的相机相关联的CCD阵列捕获的图像的质量。