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21 条记录 (耗时 0.021 秒)

    Method and system for using calibration patches in electronic film processing
    4.
    发明授权
    Method and system for using calibration patches in electronic film processing 失效
    在电子薄膜加工中使用校准贴片的方法和系统

    公开(公告)号：US06439784B1

    公开(公告)日：2002-08-27

    申请号：US09640853

    申请日：2000-08-17

    申请人： Michael P. Keyes ,  Philip E. Cannata

    发明人： Michael P. Keyes ,  Philip E. Cannata

    IPC分类号： G03D500

    CPC分类号： G03B27/32 ,  G03D5/06

    摘要： A method and system (100) for using reference patches (108) to enhance electronic film processing of a scene image (104) contained on a first area of a film (112) include creating a reference patch (108) on a second area of the film (112); coating the film (112) with a developing solution to form a scene image (104) and a patch image (108); scanning the film (112) coated with the developing solution to generate signals corresponding to digital representations of the scene image (104) and the patch image (108); calculating image processing parameters from the signals associated with the patch image (108); and processing the digital representations of the scene image (104) using the image processing parameters calculated from the patch image (108) to produce color values which more accurately reflect the original scene and which are pleasing to the eye.

    摘要翻译： 一种用于使用参考补片（108）来增强包含在胶卷（112）的第一区域上的场景图像（104）的电子胶片处理的方法和系统（100）包括在第一区域 胶片（112）; 用显影液涂覆薄膜（112）以形成场景图像（104）和斑块图像（108）; 扫描涂有显影液的胶片（112）以产生对应于场景图像（104）和斑块图像（108）的数字表示的信号; 从与所述补丁图像（108）相关联的信号计算图像处理参数; 以及使用从补丁图像（108）计算出的图像处理参数来处理场景图像（104）的数字表示，以产生更准确地反映原始场景并且对于令人愉悦的颜色值。

    Liquid crystal compounds having a chiral fluorinated terminal portion
    8.
    发明授权
    Liquid crystal compounds having a chiral fluorinated terminal portion 失效

    公开(公告)号：US6030547A

    公开(公告)日：2000-02-29

    申请号：US998400

    申请日：1997-12-24

    申请人： Masakazu Hasegawa ,  Michael P. Keyes ,  Marc D. Radcliffe ,  Patricia M. Savu ,  Daniel C. Snustad ,  Terence D. Spawn

    发明人： Masakazu Hasegawa ,  Michael P. Keyes ,  Marc D. Radcliffe ,  Patricia M. Savu ,  Daniel C. Snustad ,  Terence D. Spawn

    摘要： Fluorine-containing, chiral liquid crystal compounds comprise (a) a chiral fluorochemical terminal portion comprising (i) at least one chiral center, which can optionally be heteroatom-substituted; (ii) a terminal fluoroalkyl, fluoroether, perfluoroalkyl, or perfluoroether group; and (iii) an alkylene or fluoroalkylene group optionally containing at least one caternary ether oxygen atom; (b) a chiral or achiral terminal portion consisting of a hydrocarbon or hydrocarbon ether group, and, when chiral, comprising at least one chiral center, which can optionally be heteroatom-substituted; and (c) a central core connecting the terminal portions; the alkylene or fluoroalkylene group of the chiral fluorochemical terminal portion having at least 3 in-chain atoms and being located between the chiral center of the chiral fluorochemical terminal portion and the central core. The compounds have smectic mesophases or latent smectic mesophases and are useful, for example, in liquid crystal display devices.

    Process for controlling layer spacing in mixtures of smectic liquid crystal compounds
    9.
    发明授权
    Process for controlling layer spacing in mixtures of smectic liquid crystal compounds 失效
    用于控制层间液晶化合物混合物层间距的方法

    公开(公告)号：US5417883A

    公开(公告)日：1995-05-23

    申请号：US225882

    申请日：1994-04-11

    申请人： Kenneth A. Epstein ,  Michael P. Keyes ,  Marc D. Radcliffe ,  Daniel C. Snustad

    发明人： Kenneth A. Epstein ,  Michael P. Keyes ,  Marc D. Radcliffe ,  Daniel C. Snustad

    IPC分类号： G02F1/13 ,  C09K19/02 ,  C09K19/34 ,  G02F1/141 ,  C09K17/52

    CPC分类号： C09K19/3469 ,  C09K19/02 ,  G02F1/1416

    摘要： A process for controlling layer spacing in mixtures of smectic liquid crystal compounds comprises the step of combining a liquid crystal composition having a net negative thermal layer expansion in at least one tilted (or latent tilted) smectic mesophase and a liquid crystal composition having a net positive thermal layer expansion in at least one tilted (or latent tilted) smectic mesophase, each of the compositions comprising at least one smectic or latent smectic liquid crystal compound. The process enables control of layer spacing in the tilted smectic mesophase(s) and thereby control or suppression of chevron layer geometry.

    摘要翻译： 用于控制层间液晶化合物混合物中层间距的方法包括将至少一个倾斜（或潜在倾斜）近晶中间相中具有净负热层膨胀的液晶组合物与具有净阳离子的液晶组合物组合的步骤 在至少一个倾斜（或潜在倾斜）近晶中间相中的热层膨胀，每种组合物包含至少一种近晶或潜层间的近晶液晶化合物。 该方法能够控制倾斜的近晶中间相中的层间距，从而控制或抑制人字形层几何形状。

    Cryptographic method for color images and digital cinema
    10.
    发明授权
    Cryptographic method for color images and digital cinema 失效

    公开(公告)号：US06985585B2

    公开(公告)日：2006-01-10

    申请号：US09822960

    申请日：2001-03-30

    申请人： Michael P. Keyes ,  Philip E. Cannata

    发明人： Michael P. Keyes ,  Philip E. Cannata

    IPC分类号： H04N7/50

    CPC分类号： H04K1/00 ,  G09C5/00 ,  H04L9/3066 ,  H04L9/3093

    摘要： A method for the encryption and decryption of digital images based on cyclotomic polynomials and radiometric expressions comprising the steps of generating an encrypting transform, partitioning the digital images into data blocks, along with encrypting, transmitting, and decrypting the data blocks. Three common radiometric expressions are fundamental metamers, black metamers, and radiometric functions. In one embodiment, the mathematical equation that represents the encrypting transform is a cyclotomic polynomial. In another embodiment, a cyclotomic polynomial is used to calculate the coefficients of the mathematical equation that represents the encrypting transform. In other embodiments, the encrypting transform is generated with a radiometric expression, and the encrypted data blocks are calculated with a radiometric expression.