公开(公告)号：US07269297B2

公开(公告)日：2007-09-11

申请号：US10721948

申请日：2003-11-25

申请人： Robert P. Loce ,  Yeqing (Juliet) Zhang ,  Gaurav Sharma

发明人： Robert P. Loce ,  Yeqing (Juliet) Zhang ,  Gaurav Sharma

IPC分类号： G06K9/00 ,  H04N1/46

CPC分类号： H04N1/56 ,  H04N1/32149 ,  H04N1/32309

摘要： Methods and apparatus for spectrally-encoding plural source images and for providing the spectrally-encoded plural source images in a composite image, for rendering the composite image in a physical form, or for recovering at least one of the encoded source images from the rendered composite image such that the recovered source image is made distinguishable. Source image confusion in a rendered composite image is controlled by application of a illuminant-neutral gray component replacement (GCR) technique to the darkness common to the different colorants under the multiple illuminants.

摘要翻译： 用于频谱编码多个源图像并用于在合成图像中提供频谱编码的多个源图像的方法和装置，用于以物理形式呈现合成图像，或用于从所渲染的复合物中恢复至少一个编码源图像 使得恢复的源图像是可区分的。 渲染合成图像中的源图像混淆通过将光源 - 中性灰色成分置换（GCR）技术应用于在多种光源下的不同着色剂共同的黑暗来控制。

公开(公告)号：US07199905B2

公开(公告)日：2007-04-03

申请号：US10000487

申请日：2001-12-04

申请人： Gaurav Sharma

发明人： Gaurav Sharma

IPC分类号： H04N1/40 ,  H04N1/405 ,  G06K15/00

CPC分类号： H04N1/52

摘要： Error diffusion halftoning systems and methods propagate the error both within a color layer and between the color layer being halftoned and subsequent color layers yet to be halftoned. Threshold array halftoning systems and methods diffuse error to subsequent color layers after a color layer has been halftoned using a threshold array. A color continuous tone image is separated into color layers. A plurality of weighting factors are selected that control how error is diffused to subsequent color layers as each color layer is halftoned. A first color layer is halftoned using error diffusion or threshold array halftoning. An error layer is generated from the first halftoned color layer and the first color layer. A modified second continuous tone color layer is generated based on at least one error layer and the corresponding weighting factor. That modified second continuous tone color layer is then halftoned and the process is repeated.

摘要翻译： 误差扩散半色调系统和方法在彩色层内和在半色调的色层之间传播误差，并在之后的色层尚未被半色调传播。 阈值阵列半色调系统和方法在使用阈值阵列对色​​层进行了半色调之后将误差扩散到后续色彩层。 彩色连续色调图像被分成彩色层。 选择多个加权因子，其控制当每个颜色层被半色调时，错误如何扩散到随后的彩色层。 使用误差扩散或阈值阵列半色调将第一色层半色调。 从第一半色彩色层和第一彩色层产生错误层。 基于至少一个误差层和相应的加权因子来生成修改的第二连续色调层。 然后将该修改的第二连续色调色彩层进行半色调处理并重复。

公开(公告)号：US07145697B1

公开(公告)日：2006-12-05

申请号：US09671393

申请日：2000-09-27

申请人： Gaurav Sharma ,  Keith T. Knox

发明人： Gaurav Sharma ,  Keith T. Knox

IPC分类号： G06K15/00 ,  G06T5/00 ,  H04N1/407 ,  H04N1/409

CPC分类号： H04N1/4095 ,  H04N1/6097

摘要： Apparatus and methods that adjust image data for show-through image information of an image on a front side of an image bearing substrate having image data on a back side and on an adjacent side of a backing substrate, e.g., the pages of a bound volume. Image data for a front side image, a back side image and an adjacent side image is obtained from an optical sensor that senses light reflected from the image bearing substrate. The image data is stored in a memory and is used to determine scanned density data and approximate absorbency data for the respective sides of the substrates. Show-through compensated density data for the front side image is computed by filtering the absorbency data for the back and adjacent side with a filter characteristic of the show-through characteristics of the image bearing substrate and subtracting this filtered absorbency data from the front side scanned density data. If required, the show-through compensated density data for the front, side image is converted into a show-through compensated reflectance image.

摘要翻译： 调整图像数据的装置和方法，用于在背衬基板的背侧和相邻侧上的具有图像数据的图像承载基板的正面上的图像的显示图像信息，例如粘合体积的页面 。 从感测从图像承载基板反射的光的光学传感器获得正面图像，背面图像和相邻侧面图像的图像数据。 图像数据被存储在存储器中，并且用于确定基板的各个侧面的扫描密度数据和近似吸收性数据。 通过用图像承载衬底的显示特性的滤波器特性过滤背部和相邻侧的吸收性数据来计算正面图像的直通补偿密度数据，并从扫描的正面侧减去该滤波的吸光度数据 密度数据。 如果需要，前侧图像的显示补偿密度数据被转换成透视补偿反射图像。

公开(公告)号：US20060247877A1

公开(公告)日：2006-11-02

申请号：US11119972

申请日：2005-05-02

申请人： Raja Bala ,  Reiner Eschbach ,  Gaurav Sharma

发明人： Raja Bala ,  Reiner Eschbach ,  Gaurav Sharma

IPC分类号： G01R35/00

CPC分类号： H04N17/04

摘要： A method is presented for deriving gamma for a display monitor that does not involve color matching tasks. The method includes displaying a test pattern to a user on the display monitor. The test pattern includes at least one of a pattern of alternating light and dark regions displayed to the user at different gamma correction levels, or a grayscale character string displayed to the user at different digital gray levels against a background of two known luminance levels. Input is received from the user as to at least one of a gamma correction level that results in the pattern of alternating light and dark regions having light and dark regions of perceived equal size, or a digital gray level for the grayscale character string that results in maximum legibility of the text string against the two known background luminance levels. Gamma is derived for the display monitor based upon the user input.

摘要翻译： 提出了一种用于导出不涉及颜色匹配任务的显示监视器的伽马的方法。 该方法包括在显示监视器上向用户显示测试图案。 测试图案包括以不同的伽马校正水平显示给用户的交替光和暗区域的模式中的至少一个，或者以两个已知亮度水平的背景在不同的数字灰度级显示给用户的灰度字符串中的至少一个。 从用户接收关于导致具有感知相同大小的亮和暗区域的交替的光和暗区域的图案的灰度校正水平或用于灰度字符串的数字灰度级中的至少一个的输入，其导致 文本串相对于两个已知背景亮度级别的最大可读性。 基于用户输入，导出用于显示监视器的伽马。

公开(公告)号：US07095530B2

公开(公告)日：2006-08-22

申请号：US10040545

申请日：2002-01-07

申请人： David A. Mantell ,  Gaurav Sharma

发明人： David A. Mantell ,  Gaurav Sharma

IPC分类号： H04N1/60

CPC分类号： H04N1/52 ,  G06K15/02

摘要： A method is provided for rendering a color image with a plurality of separations with a halftone process using a single screen. The screen is comprised of a plurality of pixel locations with associated threshold values and the image is comprised of a plurality of separation values. The method includes the steps of rendering a first one of the plurality of separations in accordance with the screen, wherein the plurality of pixel locations are turned on or off at a given pixel location based on a comparison of the image separation value at that pixel with the screen threshold value. The rendering of the next color separation is made in accordance with the rendering of the first separation and the screen, wherein for constant image separation values, pixel locations are turned on for the separation at pixel locations disposed in a highest available luminance region having a lowest available threshold value. When successive filling approaches the end portion of available threshold values, overlap filling with earlier rendered color separations occurs before the screen is completely filled.

公开(公告)号：US20050261887A1

公开(公告)日：2005-11-24

申请号：US10850796

申请日：2004-05-20

申请人： Martin Chen ,  Shailesh Mane ,  Gaurav Sharma ,  Qi Wang ,  Dallan Clancy ,  Mario Rothenburg ,  Uwe Kohler

发明人： Martin Chen ,  Shailesh Mane ,  Gaurav Sharma ,  Qi Wang ,  Dallan Clancy ,  Mario Rothenburg ,  Uwe Kohler

IPC分类号： G06F9/45 ,  G06Q10/00

CPC分类号： G06Q10/06 ,  G06Q10/0631 ,  G06Q10/067 ,  G06Q10/0875

摘要： A method and apparatus for computer modeling the production process is disclosed. An integrated product and process engineering system may be a computer modeling system that models both a generic production process and a specific individual production process. The integrated product and process engineering system may store one or more time dependent process parameters related to the production process and one or more engineering change numbers related to different product designs. The effective time periods of the time dependent process parameters may be compared with the effective time periods of the engineering change numbers. Various flags may be associated with each comparison to indicate the validity of the time dependent process parameter.

摘要翻译： 公开了一种用于计算机模拟生产过程的方法和装置。 集成的产品和过程工程系统可以是模拟通用生产过程和特定单个生产过程的计算机建模系统。 集成产品和过程工程系统可以存储与生产过程相关的一个或多个时间依赖过程参数和与不同产品设计相关的一个或多个工程变更编号。 时间依赖过程参数的有效时间段可以与工程变更号的有效时间段进行比较。 可以将各种标志与每个比较相关联，以指示时间依赖过程参数的有效性。

公开(公告)号：US20050111693A1

公开(公告)日：2005-05-26

申请号：US10721138

申请日：2003-11-25

申请人： Robert Loce ,  Yeqing Zhang ,  Gaurav Sharma

发明人： Robert Loce ,  Yeqing Zhang ,  Gaurav Sharma

IPC分类号： G06T1/00 ,  G06T9/00 ,  G09C5/00 ,  H04N1/38 ,  H04N1/387 ,  H04N1/46 ,  H04N11/04 ,  G06K9/00 ,  G06K9/36

CPC分类号： H04N1/387

摘要： Methods and apparatus for spectrally-encoding plural source images and for providing the spectrally-encoded plural source images in a composite image, for rendering the composite image in a physical form, or for recovering a normalized version of an encoded source image from the rendered composite image such that the recovered source image is made distinguishable as a normalized color image.

摘要翻译： 用于频谱编码多个源图像并用于在合成图像中提供频谱编码的多个源图像的方法和装置，用于以物理形式呈现合成图像，或用于从所渲染的复合物恢复编码源图像的归一化版本 图像使得恢复的源图像被做为可区分为归一化的彩色图像。

公开(公告)号：US06654143B1

公开(公告)日：2003-11-25

申请号：US09429444

申请日：1999-10-28

申请人： Edul N. Dalal ,  Thyagarajan Balasubramanian ,  D. Rene Rasmussen ,  Gaurav Sharma ,  Mark Q. Shaw ,  Michael E. Farrell ,  David C. Robinson

发明人： Edul N. Dalal ,  Thyagarajan Balasubramanian ,  D. Rene Rasmussen ,  Gaurav Sharma ,  Mark Q. Shaw ,  Michael E. Farrell ,  David C. Robinson

IPC分类号： G06F1500

CPC分类号： H04N1/6097 ,  H04N1/603

摘要： A method of adjusting an image production system to account for a variable property of a desired output medium includes storing a reference characterization of at least one measured value associated with a reference output medium. An output value, adjusted for the variable property of the desired output medium, is determined based on data including the reference characterization of the reference output medium, for example stored in color lookup tables, color rendering dictionaries, or the like. Based on the adjusted output value determined, the desired output medium is then printed or otherwise marked using the output value.

摘要翻译： 调整图像生成系统以考虑期望输出介质的可变属性的方法包括存储与参考输出介质相关联的至少一个测量值的参考表征。 基于包括参考输出介质的参考表征的数据，例如存储在颜色查找表，显色字典等中的数据来确定针对所需输出介质的可变属性调整的输出值。 基于所确定的调整后的输出值，然后使用输出值打印所需输出介质或以其他方式进行标记。

公开(公告)号：US20240290339A1

公开(公告)日：2024-08-29

申请号：US18586187

申请日：2024-02-23

申请人： Gaurav Sharma ,  Siddharth Srivastava ,  Kranti Kumar Parida

发明人： Gaurav Sharma ,  Siddharth Srivastava ,  Kranti Kumar Parida

IPC分类号： G10L21/0216 ,  G10L25/30

CPC分类号： G10L21/0216 ,  G10L25/30

摘要： The present subject matter provides a method for de-noising an audio visual speech. The method includes modeling a noise in the audio visual speech using a noisy speech from audio data associated with the audio visual speech to generate a reconstructed noise signal. The method includes estimating the reconstructed noise signal in the audio visual speech using an audio signal and a plurality of visual frames. The method includes partitioning the reconstructed noise signal into a plurality of windows and calculate an energy associated with each window. The method includes estimating a noise strength in each window by performing a soft max operation to obtain one or more refined audio features. The method includes fusing the one or more refined audio features and one or more visual features using the noise strength to generate an output that is passed through a decoder to obtain a de-noised audio visual speech.

公开(公告)号：US08294953B2

公开(公告)日：2012-10-23

申请号：US12244425

申请日：2008-10-02

申请人： Mark Shaw ,  Randall G. Guay ,  Gaurav Sharma ,  Aravindh B. S. Rajagopalan

发明人： Mark Shaw ,  Randall G. Guay ,  Gaurav Sharma ,  Aravindh B. S. Rajagopalan

IPC分类号： H04N1/40

CPC分类号： H04N1/6019 ,  H04N1/644

摘要： A color look-up table (CLUT) is compressed in a lossless manner. The CLUT includes nodes that convert values of a first color space to corresponding values of a second color space. The CLUT is received in a serialized node-by-node manner. For each of some of the nodes, the following is performed in the order in which the nodes are received in the serialized node-by-node manner. First, a difference value is determined that represents compression of a value of the node, in accordance with a hierarchical differential encoding approach or in accordance with a cellular interpolative prediction approach. Second, the difference value is stored in lieu of the value of the node being stored, to compress the value of the node in the lossless manner.

摘要翻译： 彩色查找表（CLUT）以无损耗方式进行压缩。 CLUT包括将第一颜色空间的值转换为第二颜色空间的对应值的节点。 以逐个逐个节点的方式接收CLUT。 对于一些节点中的每一个，以按序列化逐个节点的方式接收节点的顺序执行以下操作。 首先，根据层次差分编码方法或根据蜂窝内插预测方法，确定表示节点值的压缩的差值。 第二，存储差值代替正在存储的节点的值，以无损的方式压缩节点的值。