公开(公告)号：US06804401B2

公开(公告)日：2004-10-12

申请号：US09727733

申请日：2000-12-04

申请人： William E. Nelson ,  James M. Sweet ,  Remo J. D'Ortenzio

发明人： William E. Nelson ,  James M. Sweet ,  Remo J. D'Ortenzio

IPC分类号： G06K936

CPC分类号： G06T9/00 ,  H04N1/3333 ,  H04N1/41 ,  H04N2201/33357

摘要： A method for digital image compression of a raster image is disclosed which uses different compression methods for selected parts of the image and which dynamically adjusts compression and segmentation parameters to control tradeoff of image quality and compression. The image is encoded into a single data stream for efficient handling by disk, memory and I/O systems. This system provides a stable feedback loop that manages to a fine granularity (typically 8×8 pixel blocks) the compression of image data so as to be compliant with a plurality of compression constraints; the management of an incremental bias toward more aggressive compression that selectively applies the more aggressive compression methods to blocks that are the most tolerant with respect to visible artifacts; and the adjustable segmentation and compression parameters used to control the image compression.

摘要翻译： 公开了一种用于光栅图像的数字图像压缩的方法，其对图像的所选部分使用不同的压缩方法，并且其动态地调整压缩和分割参数以控制图像质量和压缩的权衡。 图像被编码成单个数据流，以便由磁盘，存储器和I / O系统进行有效的处理。 该系统提供稳定的反馈回路，其对图像数据的压缩进行精细粒度（通常为8×8像素块），以便符合多个压缩约束; 对更积极的压缩的增量偏倚的管理，其选择性地将更积极的压缩方法应用于对于可见伪像是最宽容的块; 以及用于控制图像压缩的可调分割和压缩参数。

公开(公告)号：US07218784B1

公开(公告)日：2007-05-15

申请号：US09562143

申请日：2000-05-01

申请人： Norman W. Zeck ,  William E. Nelson ,  Remo J. D'Ortenzio

发明人： Norman W. Zeck ,  William E. Nelson ,  Remo J. D'Ortenzio

IPC分类号： G06K9/36

CPC分类号： H04N1/41 ,  H04N19/12 ,  H04N19/126 ,  H04N19/14 ,  H04N19/176 ,  H04N19/60

摘要： This invention relates to a method and apparatus for controlling image quality and compression ratios in image segmentation. More particularly, the invention is directed to an image segmenting system and method that analyzes and classifies pixel blocks of an image to determine the manner in which the image block should be compressed, e.g. with a lossy or a lossless technique. This approach, which assumes no apriori knowledge of the any specific region of the image, results in effective use of the various known compression techniques and provides improved overall compression ratios and image quality.

摘要翻译： 本发明涉及一种用于控制图像分割中的图像质量和压缩比的方法和装置。 更具体地，本发明涉及一种图像分割系统和方法，其分析和分类图像的像素块以确定图像块应被压缩的方式，例如， 有损或无损技术。 这种不考虑图像的任何特定区域的先验知识的方法导致有效地利用各种已知的压缩技术，并提供改进的总体压缩比和图像质量。

公开(公告)号：US20110188062A1

公开(公告)日：2011-08-04

申请号：US12696194

申请日：2010-01-29

申请人： James M. Sweet ,  William E. Nelson

发明人： James M. Sweet ,  William E. Nelson

IPC分类号： G06F3/12 ,  G06K15/02

CPC分类号： G06F3/12 ,  G06K15/02

摘要： A method and system for predicting expansion difficulty and an expansion time required to perform print-time imaging operations. A print-ready compressed file may be generated by raster image processing of a job description file associated with a rendering job provided by a digital front end. The expansion time with respect to one or more expansion processes may be predicted by a linear equation during assembly of the compressed file. The linear equation may be formulated based on measured compression statistics that relate to profile data within the compressed file. The total expansion time with respect to the rendering job may be then computed by summing the results of the linear equations. The expansion time to perform the print-time imaging operations may be compared with an available time based on an image output terminal speed to improve performance of raster image processing.

摘要翻译： 一种用于预测执行打印时成像操作所需的扩展难度和扩展时间的方法和系统。 可以通过与由数字前端提供的呈现作业相关联的作业描述文件的光栅图像处理来生成打印就绪压缩文件。 相对于一个或多个扩展过程的扩展时间可以通过在压缩文件的组装期间的线性方程来预测。 可以基于与压缩文件内的简档数据相关的测量的压缩统计量来形成线性方程式。 然后可以通过对线性方程的结果相加来计算相对于再现作业的总扩展时间。 可以基于图像输出端速度将执行打印时成像操作的扩展时间与可用时间进行比较，以提高光栅图像处理的性能。

公开(公告)号：US06650261B2

公开(公告)日：2003-11-18

申请号：US10175242

申请日：2002-06-18

申请人： William E. Nelson ,  James M. Sweet ,  Norman W. Zeck ,  Ronald E. Rider

发明人： William E. Nelson ,  James M. Sweet ,  Norman W. Zeck ,  Ronald E. Rider

IPC分类号： H03M700

CPC分类号： G06T9/005 ,  H03M7/3086

摘要： An improved sliding window dictionary-based compression method limits the data within the sliding window searched to data strings occurring at each discrete match location within a plurality of predefined discrete match locations, the plurality of predefined discrete match locations comprising a set of non-continuous data positions within the window of data.

摘要翻译： 改进的基于滑动窗口字典的压缩方法将搜索到的滑动窗口内的数据限制在多个预定离散匹配位置内的每个离散匹配位置处出现的数据串，所述多个预定离散匹配位置包括一组非连续数据 数据窗口内的位置。

公开(公告)号：US08144355B2

公开(公告)日：2012-03-27

申请号：US12647117

申请日：2009-12-24

申请人： William E. Nelson ,  James M. Sweet

发明人： William E. Nelson ,  James M. Sweet

IPC分类号： G06F15/00 ,  G06K1/00 ,  H04N1/40

CPC分类号： G06T11/40 ,  G06F3/1211 ,  G06F3/122 ,  G06F3/1242 ,  G06F3/1247

摘要： A method receives, at a processor of a printing apparatus, a variable information print job. The variable information print job is processed into upper planes of the record-specific objects, upper planes of the reusable objects, lower planes of the record-specific objects, and lower planes of the reusable objects. The method stores such objects within a storage medium of the printing apparatus. The method combines ones of the compressed upper planes of the record-specific objects and the compressed upper planes of the reusable objects corresponding to the record of the variable information print job using the processor to create a single compressed upper plane for the record within an output buffer of the printing apparatus and creates an ordered list (corresponding to the record) of lower plane tiles by assembling the compressed lower planes of the record-specific objects and the compressed lower plane reusable objects. The method performs a printing operation for the record of the variable information print job by decompressing multiple ones of the lower plane tiles in a predetermined order to form a lower plane of the record into an output raster page, decompressing the single compressed upper plane of the record into the output raster page, and outputting the output raster page to a printing engine of the printing apparatus to print the record of the variable information print job on print media.

摘要翻译： 一种方法在打印设备的处理器处接收可变信息打印作业。 可变信息打印作业被处理成记录特定对象的上平面，可重用对象的上平面，记录特定对象的下平面以及可重复使用对象的下平面。 该方法将这些对象存储在打印设备的存储介质内。 该方法将记录特定对象的压缩上层平面和与可变信息打印作业的记录相对应的可再利用对象的压缩上平面与处理器相结合，以在输出内创建用于记录的单个压缩上层平面 打印装置的缓冲器，并且通过组装记录特定对象的压缩下平面和压缩的下平面可重用对象来创建下平面瓦片的有序列表（对应于记录）。 该方法通过以预定顺序对多个下平面瓦片进行解压缩来执行用于记录可变信息打印作业的打印操作，以将记录的下平面形成为输出光栅页面，对单个压缩的上平面进行解压缩 记录到输出光栅页面中，并将输出光栅页输出到打印设备的打印引擎，以在打印介质上打印可变信息打印作业的记录。

公开(公告)号：US08493612B2

公开(公告)日：2013-07-23

申请号：US12696194

申请日：2010-01-29

申请人： James M. Sweet ,  William E. Nelson

发明人： James M. Sweet ,  William E. Nelson

IPC分类号： G06K15/02

CPC分类号： G06F3/12 ,  G06K15/02

摘要： A method and system for predicting expansion difficulty and an expansion time required to perform print-time imaging operations. A print-ready compressed file may be generated by raster image processing of a job description file associated with a rendering job provided by a digital front end. The expansion time with respect to one or more expansion processes may be predicted by a linear equation during assembly of the compressed file. The linear equation may be formulated based on measured compression statistics that relate to profile data within the compressed file. The total expansion time with respect to the rendering job may be then computed by summing the results of the linear equations. The expansion time to perform the print-time imaging operations may be compared with an available time based on an image output terminal speed to improve performance of raster image processing.

摘要翻译： 一种用于预测执行打印时成像操作所需的扩展难度和扩展时间的方法和系统。 可以通过与由数字前端提供的呈现作业相关联的作业描述文件的光栅图像处理来生成打印就绪压缩文件。 相对于一个或多个扩展过程的扩展时间可以通过在压缩文件的组装期间的线性方程来预测。 可以基于与压缩文件内的简档数据相关的测量的压缩统计量来形成线性方程式。 然后可以通过对线性方程的结果相加来计算相对于再现作业的总扩展时间。 可以基于图像输出端速度将执行打印时成像操作的扩展时间与可用时间进行比较，以提高光栅图像处理的性能。

公开(公告)号：US20110157619A1

公开(公告)日：2011-06-30

申请号：US12647117

申请日：2009-12-24

申请人： William E. Nelson ,  James M. Sweet

发明人： William E. Nelson ,  James M. Sweet

IPC分类号： G06F15/00

CPC分类号： G06T11/40 ,  G06F3/1211 ,  G06F3/122 ,  G06F3/1242 ,  G06F3/1247

摘要： A method receives, at a processor of a printing apparatus, a variable information print job. The variable information print job is processed into upper planes of the record-specific objects, upper planes of the reusable objects, lower planes of the record-specific objects, and lower planes of the reusable objects. The method stores such objects within a storage medium of the printing apparatus. The method combines ones of the compressed upper planes of the record-specific objects and the compressed upper planes of the reusable objects corresponding to the record of the variable information print job using the processor to create a single compressed upper plane for the record within an output buffer of the printing apparatus and creates an ordered list (corresponding to the record) of lower plane tiles by assembling the compressed lower planes of the record-specific objects and the compressed lower plane reusable objects. The method performs a printing operation for the record of the variable information print job by decompressing multiple ones of the lower plane tiles in a predetermined order to form a lower plane of the record into an output raster page, decompressing the single compressed upper plane of the record into the output raster page, and outputting the output raster page to a printing engine of the printing apparatus to print the record of the variable information print job on print media.

摘要翻译： 一种方法在打印设备的处理器处接收可变信息打印作业。 可变信息打印作业被处理成记录特定对象的上平面，可重用对象的上平面，记录特定对象的下平面以及可重复使用对象的下平面。 该方法将这些对象存储在打印设备的存储介质内。 该方法将记录特定对象的压缩上层平面和与可变信息打印作业的记录相对应的可再利用对象的压缩上平面与处理器相结合，以在输出内创建用于记录的单个压缩上层平面 打印装置的缓冲器，并且通过组装记录特定对象的压缩下平面和压缩的下平面可重用对象来创建下平面瓦片的有序列表（对应于记录）。 该方法通过以预定顺序对多个下平面瓦片进行解压缩来执行用于记录可变信息打印作业的打印操作，以将记录的下平面形成为输出光栅页面，对单个压缩的上平面进行解压缩 记录到输出光栅页面中，并将输出光栅页输出到打印设备的打印引擎，以在打印介质上打印可变信息打印作业的记录。

公开(公告)号：US5771060A

公开(公告)日：1998-06-23

申请号：US472154

申请日：1995-06-07

申请人： William E. Nelson

发明人： William E. Nelson

IPC分类号： B41J2/465 ,  B41J2/52 ,  G06K15/12 ,  H04N1/04 ,  H04N1/19 ,  H04N1/40 ,  B41J2/47

CPC分类号： H04N1/40031 ,  B41J2/465 ,  B41J2/52 ,  G06K15/1257 ,  H04N1/00015 ,  H04N1/00031 ,  H04N1/00047 ,  H04N1/0005 ,  H04N1/00063 ,  H04N1/00082 ,  H04N1/04 ,  H04N1/40025 ,  H04N1/19 ,  H04N2201/0458

摘要： Higher quality printing is difficult in implementation in spatial light modulator printers. The two major problems are accomplishing gray scale within the line time constraints, and eliminating staircasing artifacts within the images printed (81). It can be improved by using an alternate way of resetting cells on the spatial light modulator when data is being loaded onto the cells, timing delay (86), horizontal offset (84), and differently sized pixels (80, 82).

摘要翻译： 在空间光调制器打印机中实现更高质量的打印是困难的。 两个主要问题是在线路时间限制内实现灰度级，并消除了印刷图像中的阶梯伪影（81）。 当数据被加载到单元，定时延迟（86），水平偏移（84）和不同大小的像素（80,82）时，可以通过使用在空间光调制器上复位单元的替代方式来改进。

公开(公告)号：US5490009A

公开(公告)日：1996-02-06

申请号：US332023

申请日：1994-10-31

申请人： Vadlamannati Venkateswar ,  William E. Nelson

发明人： Vadlamannati Venkateswar ,  William E. Nelson

IPC分类号： G02B26/08 ,  G02F1/133 ,  G09G3/34 ,  G09G5/00 ,  H04N5/66 ,  H04N5/74 ,  G02B26/00

CPC分类号： H04N5/7458 ,  G02B26/0841

摘要： A display system (20) that uses multiple SLMs (25) to enhance horizontal or vertical resolution, or both. For example, to approximate a two-fold increase in horizontal resolution, the input data is sampled at a doubled rate, and each SLM (25) receives every other sample. Each SLM (25) generates an image, and the two images are partially superposed with a horizontal offset and simultaneously displayed. The resulting output image has a perceived resolution that approximates that of an image generated by an SLM with twice as many pixels per row.

摘要翻译： 一种使用多个SLM（25）来增强水平或垂直分辨率或两者的显示系统（20）。 例如，为了近似水平分辨率的两倍增加，输入数据以双倍速率进行采样，并且每个SLM（25）接收每隔一个采样。 每个SLM（25）生成图像，并且两个图像被部分地叠加有水平偏移并且同时显示。 所得到的输出图像具有近似于由SLM生成的图像的感知分辨率，每行具有两倍的像素。

公开(公告)号：US5330878A

公开(公告)日：1994-07-19

申请号：US47254

申请日：1993-04-14

申请人： William E. Nelson

发明人： William E. Nelson

IPC分类号： G03F7/20 ,  H01L21/027 ,  H01L21/30 ,  H05K3/00 ,  G03C5/00

CPC分类号： G03F7/70283 ,  G03F7/2057 ,  G03F7/70291 ,  H05K3/0082

摘要： A device for patterning an imaging member (46) is provided. The device comprises a light source (24) which emits light rays (26). Light rays (26) pass through a collimator lens (28) to collimate the light rays (30). The light then strikes a spatial light modulator (32) which is controlled by a computer (40) to reflect the light (42). The light passes through an imaging lens (44) to magnify the pattern for striking imaging member (46). Imaging member (46) is thus patterned by changing modulator (32) by computer (40).

摘要翻译： 提供了用于图案化成像构件（46）的装置。 该装置包括发射光线（26）的光源（24）。 光线（26）穿过准直透镜（28）以准直光线（30）。 然后光照射由计算机（40）控制以反射光（42）的空间光调制器（32）。 光通过成像透镜（44）以放大用于撞击成像构件（46）的图案。 因此，通过用计算机（40）改变调制器（32），成像构件（46）被图案化。