公开(公告)号：US5724450A

公开(公告)日：1998-03-03

申请号：US312975

申请日：1994-09-30

申请人： Kok Chen ,  Michael Stokes

发明人： Kok Chen ,  Michael Stokes

IPC分类号： H04N1/60 ,  G03F3/08 ,  G06F15/00

CPC分类号： H04N1/6058

摘要： A method and system for compressing and color transforming image data are presented. Color transformation is a process whereby perceptional differences between the expressions of images in color devices are compensated. By transforming a compressed version of the image data, the amount of time in which it takes to perform color transformation can be reduced. Selection of compression techniques which maintain color characteristics of the image data in its compressed form permits the usage of color transformation techniques which already exist for the image data in its uncompressed form. The inventive techniques can be applied either prior to, or after, storage of the image data in an intermediate media or transmission from one device to another.

摘要翻译： 提出了压缩和颜色变换图像数据的方法和系统。 颜色变换是彩色设备中的图像表达之间的感知差异得到补偿的过程。 通过转换图像数据的压缩版本，可以减少执行颜色变换所需的时间量。 选择以压缩形式保持图像数据的颜色特性的压缩技术允许使用已经存在于其未压缩形式的图像数据的颜色变换技术。 本发明的技术可以在图像数据在从一个设备到另一个设备的中间介质或传输中存储之前或之后应用。

公开(公告)号：US5612902A

公开(公告)日：1997-03-18

申请号：US304838

申请日：1994-09-13

申请人： Michael Stokes

发明人： Michael Stokes

IPC分类号： H04N1/60 ,  H04N1/50

CPC分类号： H04N1/6033

摘要： A method and system for automatic characterization of a color printer are described. A relatively few number of test samples are printed and measured to create an analytic model which characterizes a printer. This analytical model, in turn, is used to generate a multidimensional lookup table which can then be used at runtime to compensate image input and create desired visual characteristics in the printed image. A detector can be incorporated into the printer which measures at least one parameter of each printed sample so that characterization can be carried out internally to the printer in a manner which is transparent to the end user. In this way, changes in paper stock, inks, or environment can be custom compensated for each printing application.

摘要翻译： 描述了彩色打印机的自动表征的方法和系统。 打印和测量相对较少数量的测试样品以创建表征打印机的分析模型。 反过来，该分析模型用于生成多维查找表，然后可以在运行时使用查找表来补偿图像输入并在打印图像中创建所需的视觉特征。 检测器可以结合到打印机中，其测量每个打印样品的至少一个参数，使得可以以对最终用户透明的方式在打印机内部执行表征。 以这种方式，可以对每种印刷应用程序定制补偿纸张，油墨或环境的变化。

公开(公告)号：US5611030A

公开(公告)日：1997-03-11

申请号：US623594

申请日：1996-03-28

申请人： Michael Stokes

发明人： Michael Stokes

IPC分类号： G06T11/00 ,  H04N1/60 ,  G06T5/00

CPC分类号： G06T11/001 ,  H04N1/6058

摘要： A method is provided for use in a color computer graphics system whereby mapping constraints are relaxed and redefined so as to allow out-of-gamut colors to be mapped to in-gamut colors in a manner that is significantly more visually pleasing than in conventional methods. More particularly, the present invention provides a method of mapping source device colors to destination device colors in a computer graphics system having a color image source device and a color image destination device having non-coincident color gamuts such that a plurality of colors within a color gamut of the source device are out of gamut colors outside a color gamut of the destination device. A color name is associated with an out-of-gamut color, which is mapped to a first in-gamut color within the color gamut of the destination device. A color name is also assiciated with the first in-gamut color. If the color name associated with the out-of-gamut color and the color name associated with the first in-gamut color are different, the out-of-gamut color is remapped to a different in-gamut color within the color gamut of the destination device. The color name associated with the out-of-gamut color and the color name associated with the first in-gamut color are based on psychophysical experimentation, i.e., are indicative of what an average user is likely to call the color in question. The remapping may be single-step or iterative.

摘要翻译： 提供了一种在彩色计算机图形系统中使用的方法，由此映射约束被放宽和重新定义，以便允许将色域外颜色以与常规方法相比显着更加视觉上令人满意的方式映射到色域内的颜色 。 更具体地，本发明提供了一种在具有彩色图像源装置和具有非重合色域的彩色图像目标装置的计算机图形系统中将源装置颜色映射到目标装置颜色的方法，使得颜色内的多种颜色 源设备的色域在目标设备的色域外部的色域色域之外。 颜色名称与色域外的颜色相关联，其被映射到目标设备的色域内的第一个色域颜色。 颜色名称也与第一个色域颜色相提并论。 如果与色域外的颜色相关联的颜色名称和与第一色域内颜色相关联的颜色名称不同，则将色域外的颜色重新映射到色域内的不同色域内 目的地设备。 与色域外的颜色相关联的颜色名称和与第一色域内颜色相关联的颜色名称是基于心理物理实验，即指示平均用户可能称之为所讨论的颜色的颜色。 重映射可以是单步或迭代。

公开(公告)号：US5315304A

公开(公告)日：1994-05-24

申请号：US86424

申请日：1993-07-02

申请人： Sam Ghaleb ,  Michael Stokes

发明人： Sam Ghaleb ,  Michael Stokes

IPC分类号： G01S7/40 ,  G01S13/44

CPC分类号： G01S13/4418 ,  G01S7/4004 ,  G01S7/4052 ,  G01S2007/4073

摘要： A digitally formed monopulse radar employing dynamic real-time calibrationuring operation. The invention has a transmitter section, timing circuit, RF section, IF section, in-phase and quadrature section and a digital signal processor. A portion of the transmit signal is diverted from the transmitter section for preparation of calibration factors during the calibration period between receive signals. The calibration factors prepared by the digital signal processor are applied by the processor to antenna received signals during the receive mode and to produce the corrected sum and delta pitch, and delta yaw signals and the tracking errors .epsilon..sub.y and .epsilon..sub.p.

摘要翻译： 一种数字化形成的单脉冲雷达，在运行过程中采用动态实时校准。 本发明具有发射机部分，定时电路，RF部分，IF部分，同相和正交部分以及数字信号处理器。 发射信号的一部分从发射机部分转移，用于在接收信号之间的校准周期期间准备校准因子。 由数字信号处理器准备的校准因子在接收模式期间由处理器应用于天线接收信号，并产生校正的和和增量间距，以及Δ偏航信号和跟踪误差ε和ε。