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    • 1. 发明授权
    • Video based color sensing device for a printing press control system
    • 用于印刷机控制系统的基于视频的彩色感测装置
    • US5767980A
    • 1998-06-16
    • US493184
    • 1995-06-20
    • Xin xin WangRobert Nemeth
    • Xin xin WangRobert Nemeth
    • B41F31/02B41F33/00B41F33/14G01J3/46G03F3/08H04N1/40H04N1/46
    • B41F33/0036
    • A color sensing device of a printing press control system, having a plurality of lamp fixtures (100 and 102) for providing light in the visible region and the near infrared region of the spectrum to illuminate a viewing area (104), a camera assembly (108), the camera assembly having multiple channels to capture images in the visible region and the near infrared region, and at least one lens for generating the images, a calibration target (108) with a uniform light reflectance, a device for adjusting the distribution of the light so that image captured from said calibration target in each channel of the camera assembly is as even as possible, a device for applying a position related compensation process in order to obtain an image which corresponds to a position-invariant viewing condition, and a device for applying a camera value related compensation process in order to obtain an image under a standard viewing condition.
    • 一种印刷机控制系统的彩色感测装置,具有多个灯具(100和102),用于在可见光区域和近红外区域提供光线以照亮观察区域(104),照相机组件 108),具有多个通道以捕获可见区域和近红外区域中的图像的相机组件,以及用于产生图像的至少一个透镜,具有均匀光反射率的校准目标(108),用于调整分布的装置 的光,使得从相机组件的每个通道中的所述校准目标捕获的图像尽可能均匀;用于应用位置相关补偿处理以便获得对应于位置不变观看条件的图像的装置,以及 用于应用相机价值相关补偿处理的装置,以便在标准观看条件下获得图像。
    • 2. 发明授权
    • Control system for a printing press
    • 印刷机控制系统
    • US5841955A
    • 1998-11-24
    • US515550
    • 1995-08-16
    • Xin xin Wang
    • Xin xin Wang
    • B41F33/00G06K15/00
    • B41F33/0045
    • A control system (10) for a four-color printing press (11) having a device (21) for detecting the energy reflected from a paper surface in both the visible region and the infrared region of the electromagnetic spectrum, a device (23) for converting the output of the detecting device (21) to a set of variables which represent the amount of ink presented on the paper for any of the cyan, magenta, yellow, and black inks, and a device (25) responsive to the converting device (23) for adjusting the four-color printing press (11) to maintain the color consistency with or without an additional color control target.
    • 一种用于四色印刷机(11)的控制系统(10),具有用于检测在电磁光谱的可见区域和红外区域中从纸面反射的能量的装置(21),装置(23) 用于将检测装置(21)的输出转换成表示针对青色,品红色,黄色和黑色墨水中的任何一种呈现在纸张上的墨量的一组变量,以及响应于转换的装置(25) 用于调节四色印刷机(11)以保持具有或不具有附加颜色控制目标的颜色一致性的装置(23)。