公开(公告)号：US07136189B2

公开(公告)日：2006-11-14

申请号：US10040546

申请日：2002-01-07

申请人： Gaurav Sharma ,  Helen H. Shin ,  Shen-Ge Wang ,  Zhigang Fan

发明人： Gaurav Sharma ,  Helen H. Shin ,  Shen-Ge Wang ,  Zhigang Fan

IPC分类号： G06F15/00

CPC分类号： H04N1/52

摘要： A method is provided for rendering a color image with a plurality of separations with a multi-level successive-filling halftoning process using a single screen for a plurality of separations. For a separation to be processed, first, from the possible multiple levels for the separation, the set of levels that would be used and the number of dots corresponding to the different levels are decided. These decisions are based on the input level for the separation and input levels for the prior process separations. The location of the dots to be printed for the different levels for the separation is then decided by using the halftone screen, while simultaneously taking into account the placement of printed dots for the prior separations. The selection is done so as to best disperse dots and minimize overlap.

摘要翻译： 提供了一种使用单个屏幕进行多次分色的多级连续填充半色调处理来渲染具有多个分色的彩色图像的方法。 对于待处理的分离，首先，从分离的可能的多个级别中，决定将使用的级别集合和对应于不同级别的点数。 这些决定基于先前过程分离的分离和输入水平的输入水平。 然后通过使用半色调屏幕来确定要分离的不同级别要打印的点的位置，同时考虑用于先前分离的打印点的位置。 进行选择以便最佳地分散点并最小化重叠。

公开(公告)号：US07085004B2

公开(公告)日：2006-08-01

申请号：US09725998

申请日：2000-11-29

申请人： Gaurav Sharma ,  Thyagarajan Balasubramanian

发明人： Gaurav Sharma ,  Thyagarajan Balasubramanian

IPC分类号： G06F15/00 ,  G06K1/00

CPC分类号： H04N1/00015 ,  G03G2215/066 ,  G06K15/00 ,  H04N1/00002 ,  H04N1/00023 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00087 ,  H04N1/6033

摘要： A method and system validates an output used in calibrating a document processing system (DPS). The calibration target is generated for assessing the range of outputs of the DPS. The target comprises a plurality of target elements and element orientation information representing a physical layout of the target elements in a DPS output. The DPS output is generated in accordance with the calibration target. The characteristic values of the DPS output are measured corresponding to the individual target elements. If a mis-ordering of the measurements of the target elements is identified, the measurements of the target element of the DPS are reordered in accordance with the desired order for computing an appropriate calibration function without requirement of re-measurement.

公开(公告)号：US06992797B1

公开(公告)日：2006-01-31

申请号：US11110674

申请日：2005-04-21

申请人： Gaurav Sharma ,  Stuart A. Schweid

发明人： Gaurav Sharma ,  Stuart A. Schweid

IPC分类号： G06K15/00

CPC分类号： H04N1/32309 ,  H04N2201/3233 ,  H04N2201/327

摘要： System and methods provide a message, generated based on a message authentication code (MAC), embedded in a look-up table associated with an image. The embedding of the message does not affect the image. The message may be used to authenticate the image.

公开(公告)号：US20050271265A1

公开(公告)日：2005-12-08

申请号：US10861855

申请日：2004-06-04

申请人： Shen-Ge Wang ,  Reiner Eschbach ,  Gaurav Sharma

发明人： Shen-Ge Wang ,  Reiner Eschbach ,  Gaurav Sharma

IPC分类号： G06K9/20 ,  G06K9/34 ,  G06K9/46 ,  G06K9/62

CPC分类号： G06K9/00456

摘要： A method for automatically classifying a printed image, includes scanning the printed image; selecting an n by n block of pixels from the scanned image; calculating an array of DCT coefficients of the pixel block, wherein the array of calculated DCT coefficients are representative of spatial frequency and spatial orientation of the pixel block; comparing the DCT coefficients with an array of predetermined values, wherein the array of predetermined values are indicative of different image marking processes used to produce printed images; and determining an image marking process used to create the printed image based on the comparison of the DCT coefficients with the array of predetermined values. The array of DCT coefficients may be sampled into a feature set and the feature set provided to a neural network to output the determined image marking process.

摘要翻译： 一种用于自动分类打印图像的方法，包括扫描印刷图像; 从扫描图像中选择n×n个像素块; 计算所述像素块的DCT系数的阵列，其中所计算的DCT系数的阵列代表所述像素块的空间频率和空间取向; 将DCT系数与预定值的阵列进行比较，其中预定值的阵列指示用于产生打印图像的不同图像标记处理; 以及基于DCT系数与预定值的阵列的比较来确定用于创建打印图像的图像标记处理。 DCT系数的阵列可以被采样到特征集中，并且将特征集提供给神经网络以输出确定的图像标记过程。

公开(公告)号：US20050261924A1

公开(公告)日：2005-11-24

申请号：US10851275

申请日：2004-05-21

申请人： Muhammad Alam ,  Ruediger Meyfarth ,  Sam Hwang ,  Rama Koti Konatham ,  Gaurav Sharma

发明人： Muhammad Alam ,  Ruediger Meyfarth ,  Sam Hwang ,  Rama Koti Konatham ,  Gaurav Sharma

IPC分类号： G06Q10/00 ,  G06F17/60

CPC分类号： G06Q10/087 ,  G06Q10/0875 ,  G06Q30/0283 ,  G06Q30/0601 ,  G06Q99/00

摘要： A method and system for integrating cost when an order is changed and the order is currently in production using a flexible order transaction system involving the detailed mapping of the costs to the yield and scrap that are transferred as a result of the change in the order. The transfer from the original order to the new order occurs at several mapped reporting points as a result of the order change.

摘要翻译： 一种方法和系统，用于使用灵活的订单交易系统来改变订单和订单当前正在生产中的成本，该系统涉及将成本的详细映射作为由于订单变更而转移的收益和报废。 作为订单更改的结果，从原始订单到新订单的转移发生在几个映射的报告点。

公开(公告)号：US06647140B1

公开(公告)日：2003-11-11

申请号：US09313735

申请日：1999-05-18

申请人： Shen-Ge Wang ,  Gaurav Sharma

发明人： Shen-Ge Wang ,  Gaurav Sharma

IPC分类号： G06K900

CPC分类号： H04N1/6094 ,  H04N1/60

摘要： A spectrum inverter receives optical values from a scanning device and applies a spectrum inversion method to the optical values. The spectrum inversion method is selected based on a medium identifier that identifies the medium upon which the scanned image is formed. The resulting spectral space values are then output and may be used by an image output device to reproduce the scanned image.

摘要翻译： 光谱逆变器从扫描装置接收光学值，并将光谱反演方法应用于光学值。 基于识别形成扫描图像的介质的介质标识符来选择频谱反转方法。 然后输出所得到的光谱空间值，并且可以由图像输出装置使用以再现扫描图像。

公开(公告)号：US06646248B2

公开(公告)日：2003-11-11

申请号：US09841279

申请日：2001-04-24

申请人： Paul A. Hosier ,  Jagdish C. Tandon ,  Josef E. Jedlicka ,  Gaurav Sharma ,  Alain E. Perregaux ,  Robert P. Herloski

发明人： Paul A. Hosier ,  Jagdish C. Tandon ,  Josef E. Jedlicka ,  Gaurav Sharma ,  Alain E. Perregaux ,  Robert P. Herloski

IPC分类号： H01L2700

CPC分类号： H01L27/14645 ,  H01L27/14621

摘要： A photosensitive imaging device for recording images across the entire visible spectrum includes a set of photosensors which have a peak response around the orange part of the spectrum, about 600 nm. The peak response is obtained by combining responses of, in one case, photosensors associated with a filter which admits red or infrared wavelengths and longer and photosensors associated with a filter which admits orange wavelengths and longer. In another case, the photosensor is structured to attenuate longer wavelengths, which, in combination with a filter which admits orange and longer wavelengths, can simulate a peak behavior around the orange part of the spectrum.

公开(公告)号：US06525845B1

公开(公告)日：2003-02-25

申请号：US09234107

申请日：1999-01-19

申请人： Gaurav Sharma ,  Stuart A. Schweid ,  Jeng-Nan Shiau

发明人： Gaurav Sharma ,  Stuart A. Schweid ,  Jeng-Nan Shiau

IPC分类号： H04N146

CPC分类号： H04N1/00015 ,  H04N1/00002 ,  H04N1/00037 ,  H04N1/00087 ,  H04N1/2315 ,  H04N1/40062

摘要： Image information is re-calibrated based on the type of marking process and materials by which the image corresponding to the image information was marked on a substrate. The marking process is automatically detected by using, for example, at least one spatial characteristic obtained from the image information.

摘要翻译： 基于标记处理的类型和与图像信息对应的图像在基板上标记的材料重新校准图像信息。 通过使用例如从图像信息获得的至少一个空间特性来自动检测标记处理。

公开(公告)号：US06353675B1

公开(公告)日：2002-03-05

申请号：US09233108

申请日：1999-01-19

申请人： Gaurav Sharma

发明人： Gaurav Sharma

IPC分类号： G06K900

CPC分类号： H04N1/00039 ,  G06T7/80 ,  H04N1/00002 ,  H04N1/00005

摘要： A marking process used to mark an image on a substrate, such as a photographic marking process, a lithographic marking process, an ink-jet marking process, a line-on-line xerographic marking process or a rotated-screen xerographic marking process, is automatically detected using at least one image spatial characteristic obtained from image information picked up from the image. The at least one spatial characteristic, which is unique to the type of marking process, is obtained, for example, by generating an image power spectrum and analyzing the power spectrum according to the existence, position, and/or color of spectral peaks, and/or the existence or absence of abnormally high energy at the high frequencies in the power spectrum.

摘要翻译： 用于标记衬底上的图像的标记过程，例如照相标记过程，平版印刷标记过程，喷墨标记过程，线上在线静电印刷标记过程或旋转屏幕静电印刷标记过程。 使用从图像拾取的图像信息获得的至少一个图像空间特性自动检测。 例如，通过产生图像功率谱并根据光谱峰的存在，位置和/或颜色分析功率谱来获得标记过程类型所独有的至少一个空间特性，以及 /或功率谱中高频存在或不存在异常高的能量。

公开(公告)号：US20140184916A1

公开(公告)日：2014-07-03

申请号：US13731780

申请日：2012-12-31

申请人： Martin Steiner ,  Jonathan Bormet ,  Gaurav Sharma

发明人： Martin Steiner ,  Jonathan Bormet ,  Gaurav Sharma

IPC分类号： H04N7/18

CPC分类号： H04N7/18 ,  G06T5/007 ,  G06T2207/10068 ,  G06T2207/20028 ,  G06T2207/30092

摘要： A method and system for real time luminance correction and detail enhancement of a video image including the steps of extracting a luminance component from a video image, separating the luminance component into an illumination layer and a scene reflectivity layer, the illumination layer having a dynamic range, compressing the dynamic range of the illumination layer to generate a corrected illumination layer, filtering the reflectivity layer to generate an enhanced reflectivity layer; and combining the corrected illumination layer with the enhanced scene reflectivity layer to generate an enhanced luminance image, is provided. A system for real time luminance correction and detail enhancement of a video image is also provided.

摘要翻译： 一种用于视频图像的实时亮度校正和细节增强的方法和系统，包括以下步骤：从视频图像提取亮度分量，将亮度分量分离成照明层和场景反射层，照明层具有动态范围 压缩照明层的动态范围以产生校正的照明层，对反射层进行滤波以产生增强的反射层; 并且提供校正的照明层与增强的场景反射层相结合以产生增强的亮度图像。 还提供了用于视频图像的实时亮度校正和细节增强的系统。