公开(公告)号：US06816269B1

公开(公告)日：2004-11-09

申请号：US09666706

申请日：2000-09-21

申请人： Robert P. Loce ,  Yeqing Zhang ,  Martin E. Banton ,  Nancy B. Goodman ,  Susan J. Zoltner ,  Steve P. Hoover

发明人： Robert P. Loce ,  Yeqing Zhang ,  Martin E. Banton ,  Nancy B. Goodman ,  Susan J. Zoltner ,  Steve P. Hoover

IPC分类号： G06F1500

CPC分类号： H04N1/047 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02439 ,  H04N2201/04787 ,  H04N2201/04794

摘要： A registration system for image data in a binary image path includes a registration parameter source, such as a preprogrammed memory or a dynamic device, which provides registration parameters to correct for registration errors from a predetermined reference likely or predicted to occur during image output. A warping processor is in data communication with the registration parameter source which applies a selected registration parameter to an element of the image data resulting in a warped data element, minimizing the effects of the registration error. The system optionally includes an image reducing device which receives groups of high addressable binary image data and converts them to a single pixel. The pixel is then provided to the warping processor. The warping processor applies the selected registration parameter, either static or dynamically selected, from the registration parameter source to the averaged single pixel producing a warped data element. The warped data element is then optionally provided to a tone reproduction curve calibrator which adjusts for darkness errors induced by the warping or displacement of the warped data element. The calibrated pixel is then re-rendered by a processor which processes the calibrated pixel back into a plurality of print-ready data elements. The processor estimates quantization errors induced by the warping of the pixel positioning and disperses that error to following pixels. The print-ready data elements are provided to an image output terminal which produces a physical representation of the original binary image.

公开(公告)号：US06438273B1

公开(公告)日：2002-08-20

申请号：US09221285

申请日：1998-12-23

申请人： Robert P. Loce ,  Jeffrey D. Kingsley

发明人： Robert P. Loce ,  Jeffrey D. Kingsley

IPC分类号： G06K932

CPC分类号： H04N1/40068 ,  G06T5/20 ,  H04N1/40037

摘要： The present invention is a method and apparatus for improving the appearance of electronic images, and more specifically, to the efficient use of template rotation within a template matching process to enhance such images. The invention reduces the number of entries that are stored in a look up table by eliminating identical patterns that differ only by the angle at which they are output. The appropriate templates are then rotated it by the required angle for output subsequent to their retrieval from the lookup table.

摘要翻译： 本发明是一种用于改善电子图像的外观的方法和装置，更具体地，涉及在模板匹配过程中有效利用模板旋转以增强这些图像。 本发明通过消除不同于其输出角度的相同图案来减少存储在查找表中的条目的数量。 然后将合适的模板旋转所需的角度，以便在从查找表检索之后输出。

公开(公告)号：US06363177B1

公开(公告)日：2002-03-26

申请号：US09223325

申请日：1998-12-30

申请人： Robert P. Loce ,  David Glassman ,  Henry P. Jankowski

发明人： Robert P. Loce ,  David Glassman ,  Henry P. Jankowski

IPC分类号： G06K1500

CPC分类号： G06T3/606

摘要： Image rotation systems and methods optimally rotate high addressability binary images by transforming the high addressability image to a quasi-grayscale image having normal addressability. A degree of low-pass filtering may be used in conjunction with resampling the image in the process of generating the normal addressability image for rotation. The quasi-grayscale image is then rotated. The rotated quasi-grayscale image is then converted back to a high addressability binary image using a high addressability halftoning process. The systems and methods provide a process wherein high addressability binary images are rotated without introducing gray-level contours or pattern artifacts such as moiré. Further, the apparatus and method provide compact rotation of high addressability images. The density and edge integrity of the processed image are maintained without introducing false contours.

摘要翻译： 图像旋转系统和方法通过将高可寻址性图像转换为具有正常寻址能力的准灰度图像来最佳地旋转高可寻址性二进制图像。 在生成用于旋转的正常可寻址性图像的过程中，可以结合使用重新采样图像来使用一定程度的低通滤波。 然后旋转准灰度图像。 然后使用高可寻址性半色调处理将旋转的准灰度图像转换回高可寻址性二进制图像。 这些系统和方法提供了一种过程，其中高可寻址性二进制图像被旋转而不引入灰度级轮廓或图案伪影，例如莫尔。 此外，该设备和方法提供了高可寻址性图像的紧凑旋转。 维持处理图像的密度和边缘完整性，而不引入假轮廓。

公开(公告)号：US06301397B1

公开(公告)日：2001-10-09

申请号：US09223266

申请日：1998-12-30

申请人： Henry P. Jankowski ,  David Glassman ,  Robert P. Loce

发明人： Henry P. Jankowski ,  David Glassman ,  Robert P. Loce

IPC分类号： G06K932

CPC分类号： G06T3/606 ,  H04N1/3877

摘要： Image rotation systems and methods optimally rotate high addressability binary images in a compact manner. High addressability bit pixels are clustered to form multi-bit pixels. The multi-bit pixel image is rotated +/−90°. A pixel mapping method is employed that realigns high addressability pixels within each target group of pixels in a manner that maintains edge integrity, maintains density, and does not introduce additional false contours. Information regarding neighboring pixel values is used to determine edge information about a given high addressability target pixel group. The edge information includes an edge slope and edge location of the high addressability target pixel group. Based on the rotation angle and the edge information of the pixel group, the target high addressability pixel group is mapped to a preferred pattern. After mapping to a preferred pattern, the high addressability pixel group is rotated.

摘要翻译： 图像旋转系统和方法以紧凑的方式最佳地旋转高可寻址性二进制图像。 高可寻址性位像素被聚集以形成多位像素。 多位像素图像旋转+/- 90°。 使用像素映射方法，其以保持边缘完整性，维持密度并且不引入额外的假轮廓的方式重新对准每个目标像素组内的高可寻址性像素。 关于相邻像素值的信息用于确定关于给定的高可寻址性目标像素组的边缘信息。 边缘信息包括高可寻址性目标像素组的边缘斜率和边缘位置。 基于像素组的旋转角度和边缘信息，将目标高可寻址性像素组映射到优选图案。 在映射到优选图案之后，高可寻址性像素组被旋转。

公开(公告)号：US06298151B1

公开(公告)日：2001-10-02

申请号：US09710797

申请日：2000-11-09

申请人： Ronald E. Jodoin ,  Robert P. Loce ,  Reiner Eschbach

发明人： Ronald E. Jodoin ,  Robert P. Loce ,  Reiner Eschbach

IPC分类号： G06K934

CPC分类号： H04N1/40062

摘要： The present invention is a method and apparatus for automatic image segmentation using template matching filters. The invention generally segments differing binary textures or structures within an input image by passing one or more structures while removing other structures. More particularly, the method and apparatus segment a stored binary image using a template matching filter that is designed to pass therethrough, for example, text regions while removing halftone regions.

摘要翻译： 本发明是一种使用模板匹配滤波器自动图像分割的方法和装置。 本发明通常通过传递一个或多个结构同时移除其他结构来分割输入图像内的不同二进制纹理或结构。 更具体地，该方法和装置使用设计为通过其中的模板匹配滤波器（例如，文本区域）同时去除半色调区域来分割存储的二进制图像。

公开(公告)号：US06181438B2

公开(公告)日：2001-01-30

申请号：US09072122

申请日：1998-05-04

申请人： Rosario A. Bracco ,  Michael Branciforte ,  David C. Robinson ,  James O. Mitchel ,  Thomas Robson ,  Robert P. Loce ,  Hoan N. Nguyen ,  Hung M. Pham ,  Daniel D. Truong ,  Louis D. Mailloux ,  Cathleen J. Raker ,  Sue K. Lam ,  Robert R. Thompson, Jr. ,  Farhad D. Rostamian ,  Cheryl A. Pence

发明人： Rosario A. Bracco ,  Michael Branciforte ,  David C. Robinson ,  James O. Mitchel ,  Thomas Robson ,  Robert P. Loce ,  Hoan N. Nguyen ,  Hung M. Pham ,  Daniel D. Truong ,  Louis D. Mailloux ,  Cathleen J. Raker ,  Sue K. Lam ,  Robert R. Thompson, Jr. ,  Farhad D. Rostamian ,  Cheryl A. Pence

IPC分类号： H04N1407

CPC分类号： H04N1/40093 ,  G06K2215/0071 ,  G06T5/008 ,  G06T5/20 ,  G06T2200/28 ,  G06T2207/10008 ,  G06T2207/30176 ,  H04N1/407

摘要： A method and apparatus for the control of darkness/lightness in a digital image rendered by a printing system. The technique preferably employs templates to selectively apply different amounts of darkening (lightening) to borders of structures detected within the image dependent upon the need for darkening (lightening).

摘要翻译： 一种用于控制由打印系统呈现的数字图像中的黑暗度的方法和装置。 该技术优选地使用模板来根据需要变暗（减轻）来选择性地对图像中检测到的结构的边界施加不同量的变暗（发光）。

公开(公告)号：US5900901A

公开(公告)日：1999-05-04

申请号：US461912

申请日：1995-06-05

申请人： Daniel W. Costanza ,  Ronald E. Jodoin ,  Robert P. Loce

发明人： Daniel W. Costanza ,  Ronald E. Jodoin ,  Robert P. Loce

IPC分类号： B41J2/44 ,  G02B26/12 ,  H04N1/23 ,  B41J2/47 ,  B41J2/435

CPC分类号： G02B26/127

摘要： The present invention is a method and apparatus for compensating for position error inherent in a raster output scanning printing system by adjusting the intensity of image exposure to effect a correction in the output image. The invention is particularly well suited to compensate for position errors arising from a plurality of sources by first summing the errors and then applying a single compensating adjustment to the intensity of individual scan rasters based upon the position error thereof.

摘要翻译： 本发明是一种通过调整图像曝光强度来补偿输出图像中的校正来补偿光栅输出扫描打印系统中固有的位置误差的方法和装置。 本发明特别适合于通过首先对错误进行求和来补偿由多个源产生的位置误差，然后基于其位置误差对单个扫描光栅的强度施加单个补偿调整。

公开(公告)号：US5479175A

公开(公告)日：1995-12-26

申请号：US118923

申请日：1993-09-10

申请人： Michael S. Cianciosi ,  Robert P. Loce ,  Martin E. Banton ,  Ronald E. Jodoin

发明人： Michael S. Cianciosi ,  Robert P. Loce ,  Martin E. Banton ,  Ronald E. Jodoin

IPC分类号： B41J2/44 ,  G03G15/01 ,  G06K15/12 ,  H01S5/06 ,  H04N1/23 ,  H04N1/405 ,  H04N1/409 ,  H04N1/21

CPC分类号： G03G15/011 ,  G06K15/1223 ,  G06K15/129

摘要： The present invention is a an apparatus for enhancing the output along edges of discharged area developed regions in a tri-level imaging system employing a pulse width and position modulated signal ROS for exposure. The invention enables the identification and selective alteration of video data used to drive the ROS so as to extend the developed regions by a selected amount and eliminate digitization artifacts present in the image to be printed. The extension of the discharged area developed regions is accomplished by extending the width of, or adding separate, exposure pulses in adjacent areas to enable development within a portion of those regions.

摘要翻译： 本发明是一种用于在采用脉冲宽度和位置调制信号ROS进行曝光的三电平成像系统中增强排出区域展开区域边缘的输出的装置。 本发明使得能够识别和选择性地改变用于驱动ROS的视频数据，以便将显影区域扩展所选择的量并消除存在于要打印的图像中的数字化伪影。 放电区域展开区域的延伸通过在相邻区域中扩展宽度或增加分开的曝光脉冲来实现，以使得在这些区域的一部分内能够发展。

公开(公告)号：US5387985A

公开(公告)日：1995-02-07

申请号：US170082

申请日：1993-12-17

申请人： Robert P. Loce ,  Michael S. Cianciosi ,  R. Victor Klassen

发明人： Robert P. Loce ,  Michael S. Cianciosi ,  R. Victor Klassen

IPC分类号： B41J2/485 ,  G06T3/40 ,  G06T5/20 ,  G09G5/00 ,  G09G5/06 ,  G09G5/391 ,  H04N1/40 ,  H04N1/409 ,  G03F3/08

CPC分类号： H04N1/40068 ,  G06T3/40

摘要： The present invention is a method and apparatus for converting the resolution of bitmap images, and more specifically, to the use of a template matching process to alter the resolution of digital images for printing or similar methods of rendition. The present invention uses statistically generated templates, implemented using look-up tables, to improve document appearance upon output by converting from an original or input spatial resolution to an output spatial resolution that is device dependent, and where there is a non-integer relationship between the input and output resolutions. The resulting image signals may then be utilized to control a scanning beam where the beam varies in intensity and duration according to the pulses used to control it.

摘要翻译： 本发明是用于转换位图图像的分辨率的方法和装置，更具体地说，涉及使用模板匹配处理来改变用于打印的数字图像的分辨率或类似的再现方法。 本发明使用由查找表实现的统计学上生成的模板，通过从原始或输入空间分辨率转换为依赖于设备的输出空间分辨率而在输出时改善文档外观，并且其中存在非均匀关系 输入和输出分辨率。 然后，所得到的图像信号可用于控制扫描光束，其中光束根据用于控制它的脉冲的强度和持续时间而变化。

公开(公告)号：US5113202A

公开(公告)日：1992-05-12

申请号：US561131

申请日：1990-08-01

申请人： Robert P. Loce ,  James J. Appel

发明人： Robert P. Loce ,  James J. Appel

IPC分类号： G03G15/01 ,  G03G15/02 ,  G03G15/04 ,  G06K15/12 ,  H04N1/50

CPC分类号： H04N1/504 ,  G06K15/129

摘要： A single pass highlight color printing system is enabled by utilizing the disparity between the on-time of a printing system and the on-time of an optical image bar. The image bar output is adapted to be separated into two image outputs which expose two separate areas of a photoreceptor. Each exposed area is developed by a toner of a desired color and the developed image, having two colors thereon, is transferred to a copy sheet to form a two-color output copy.