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1.发明授权Image resolution conversion method that employs statistically generated multiple morphological filters 失效采用统计生成的多种形态滤波器的图像分辨率转换方法
公开(公告)号：US5579445A
公开(公告)日：1996-11-26
申请号：US169487
申请日：1993-12-17
CPC分类号： G06T3/40
摘要： A method and apparatus for automating the design of morphological or template-based filters for print quality enhancement. A plurality of different phase, but same resolution, subsampled images are generated from training documents. Statistical data derived therefrom is then employed in an automated process to generate filters. The filters may be used for resolution enhancement and/or conversion of bitmap images. Furthermore, the statistical data is used to produce filters that are intended to not only optimize image structure, but image density as well.
摘要翻译： 一种用于自动化用于打印质量增强的形态或基于模板的过滤器的设计的方法和装置。 从培训文件生成多个不同相位，但相同分辨率的子采样图像。 然后在自动化过程中采用从其导出的统计数据来生成过滤器。 滤波器可用于分辨率增强和/或位图图像的转换。 此外，统计数据用于产生旨在不仅优化图像结构而且图像密度的滤波器。
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2.发明授权Method and apparatus employing erosion-based filter pairs for image mapping 失效使用基于侵蚀的滤波器对进行图像映射的方法和装置
公开(公告)号：US5680485A
公开(公告)日：1997-10-21
申请号：US359180
申请日：1994-12-19
CPC分类号： H04N1/407 , G06T5/30 , H04N1/4055
摘要： The present invention is a method and apparatus for mapping digital image data using paired erosion-based filters. One filter of the pair creates a superset of the output image data and the other a subset of the output image data, and combinatorial logic is then applied to the superset and subset data to obtain the mapped image data. In one embodiment a plurality of erosion-based filters are used where one filter of the pair is extensive and the other filter is antiextensive, each pair generating a sample phase of a high resolution output image.
摘要翻译： 本发明是一种使用配对的基于侵蚀的滤波器映射数字图像数据的方法和装置。 该对中的一个滤波器产生输出图像数据的超集，另一个滤波器产生输出图像数据的子集，然后将组合逻辑应用于超集和子集数据以获得映射的图像数据。 在一个实施例中，使用多个基于侵蚀的滤波器，其中该对中的一个滤波器是广泛的，另一个滤波器是抗噪声的，每对滤波器产生高分辨率输出图像的采样相位。
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3.发明授权Method and apparatus for beat elimination for an RF signal modulated with a pulsed signal of similar frequency 失效用于以类似频率的脉冲信号调制的RF信号的消除消声的方法和装置
公开(公告)号：US5263128A
公开(公告)日：1993-11-16
申请号：US799265
申请日：1991-11-27
CPC分类号： H04N1/40037
摘要： A method and apparatus which eliminates beat like artifacts that occur when an RF signal is mixed with a pulsed signal of similar, but not identical, frequency to the RF signal. A controller for synchronizing the phase of a RF carrier signal to a video signal provides beat elimination in a high pixel rate laser printer. The video signal and RF carrier signal are multiplied and sent to an acousto-optic modulator for pulsing a uniform burst of energy in the form of a laser beam to a photoconductor. The controller may include a synchronous gateable crystal oscillator with logic such as TTL, CMOS, ECL or equivalent logic functions using discrete transistors, where the synchronous gateable crystal oscillator is frequency dependent upon a laser printing speed. Eliminating imaging defects such as variable pixel width and density provides a sharper, uniform pixel printout.
摘要翻译： 一种方法和装置，其消除了当RF信号与RF信号具有类似但不相同频率的脉冲信号混合时发生的搏动像伪影。 用于将RF载波信号的相位与视频信号同步的控制器在高像素率激光打印机中提供消除噪点。 将视频信号和RF载波信号相乘并发送到声光调制器，用于以激光束的形式将均匀的能量脉冲脉冲到光电导体。 该控制器可以包括具有逻辑例如TTL，CMOS，ECL或使用分立晶体管的等效逻辑功能的同步可选晶体振荡器，其中同步可选晶体振荡器的频率取决于激光打印速度。 消除诸如可变像素宽度和密度的成像缺陷提供了更清晰，均匀的像素打印输出。
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4.发明授权Method and apparatus for enhancing discharged area developed regions in a tri-level pringing system 失效在三级印刷系统中增强排放区域开发区域的方法和装置
公开(公告)号：US5479175A
公开(公告)日：1995-12-26
申请号：US118923
申请日：1993-09-10
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。
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5.发明授权Non-integer image resolution conversion using statistically generated look-up tables 失效使用统计生成的查找表进行非整数图像分辨率转换
公开(公告)号：US5387985A
公开(公告)日：1995-02-07
申请号：US170082
申请日：1993-12-17
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。
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公开(公告)号：US06356654B1
公开(公告)日：2002-03-12
申请号：US09219705
申请日：1998-12-23
IPC分类号： G06K900
CPC分类号： H04N1/58
摘要： Systems and methods for template matching of multicolored images provide an image conversion process that respectively views two, three or four input color planes through an input observation window. Single plane vectors are obtained that represent the color planes. The obtained single plane vectors are combined into a multi-plane vector that may be used in a look-up table for descreening or resolution enhancement, for example. Various interactions between color planes may be taken into account to provide optimum color space conversion. Additional information obtained by using the multi-plane vector allow performance of image processes with optimized accurate color values.
摘要翻译： 用于多色图像的模板匹配的系统和方法提供了通过输入观察窗口分别观看两个，三个或四个输入彩色平面的图像转换处理。 获得表示颜色平面的单平面向量。 获得的单平面矢量被组合成例如可以用于查看表中用于去网或分辨率增强的多平面矢量。 可以考虑色平面之间的各种相互作用，以提供最佳的颜色空间转换。 通过使用多平面矢量获得的附加信息允许以优化的精确色彩值执行图像处理。
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7.发明授权Method for design and implementation of an image resolution enhancement system that employs statistically generated look-up tables 失效用于设计和实现使用统计生成的查找表的图像分辨率增强系统的方法
公开(公告)号：US5696845A
公开(公告)日：1997-12-09
申请号：US169485
申请日：1993-12-17
CPC分类号： G06T3/40 , G06K15/02 , G06K2215/0071
摘要： The present invention is a method and apparatus for improving the appearance of printed documents, and more specifically, to the use of a template matching process to enhance the fast-scan resolution of digital images while maintaining raster resolution for printing. The present invention uses multiple-bit per pixel, statistically generated templates, implemented using look-up tables, to improve document appearance by converting from a single-bit per pixel to N-bits per pixel, while preserving raster resolution of the printed output. The resulting N-bit per pixel image signals may 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： 本发明是一种用于改善打印文档的外观的方法和装置，更具体地说，涉及使用模板匹配处理来增强数字图像的快速扫描分辨率，同时保持用于打印的光栅分辨率。 本发明使用通过使用查找表实现的统计生成的模板，通过从单个位每像素转换为每像素N位，同时保持打印输出的光栅分辨率来使用多位每像素，统计生成的模板。 所得到的N位每像素图像信号可以用于控制扫描光束，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。
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8.发明授权Pulsed imaging, pulse width modulation raster output scanner for tri-level exposure 失效脉冲成像，脉冲宽度调制雷达输出扫描仪，用于三级曝光
公开(公告)号：US5223857A
公开(公告)日：1993-06-29
申请号：US756935
申请日：1991-09-09
申请人： Robert P. Loce , Martin E. Banton , Melvin E. Swanberg , William L. Lama , Michael S. Cianciosi , Susan E. Feth , Kevin J. Garcia , Peter K. Wu , Girmay K. Girmay
发明人： Robert P. Loce , Martin E. Banton , Melvin E. Swanberg , William L. Lama , Michael S. Cianciosi , Susan E. Feth , Kevin J. Garcia , Peter K. Wu , Girmay K. Girmay
CPC分类号： G06K15/1204 , G02B26/127 , H04N1/40037
摘要： A pulsed imaging Raster Output Scanner utilizes pulse width modulation in conjunction with spatial filtering to form three exposure levels at the surface of a recording medium, one of the levels associated with a specific color.
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9.发明授权Method and apparatus for enhancing charged area developed regions in a tri-level printing system 失效用于增强三层印刷系统中带电区域展开区域的方法和装置
公开(公告)号：US5581292A
公开(公告)日：1996-12-03
申请号：US118859
申请日：1993-09-10
CPC分类号： H04N1/40043 , G06K15/1223 , G06K15/129 , H04N1/40031 , H04N1/4092
摘要： The present invention is a an apparatus for enhancing the output along edges of charged 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 charged area developed regions is accomplished by reducing or trimming the width of the 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电荷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。 带电区域显影区域的延伸通过减少或修整相邻区域中的曝光脉冲的宽度来实现，以使得在这些区域的一部分内能够发展。
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10.发明授权Pulsed imaging, pulse width modulation scanner for a tri-level highlight color imaging system 失效脉冲成像，脉冲宽度调制扫描仪，用于三级高亮彩色成像系统
公开(公告)号：US5260799A
公开(公告)日：1993-11-09
申请号：US756643
申请日：1991-09-09
申请人： Robert P. Loce , Martin E. Banton , Melvin E. Swanberg , William L. Lama , Michael S. Cianciosi , Susan E. Feth , Kevin J. Garcia , Peter K. Wu , Girmay K. Girmay
发明人： Robert P. Loce , Martin E. Banton , Melvin E. Swanberg , William L. Lama , Michael S. Cianciosi , Susan E. Feth , Kevin J. Garcia , Peter K. Wu , Girmay K. Girmay
CPC分类号： H04N1/40037 , G06K15/12 , G06K15/129
摘要： A pulsed imaging, facet tracked, Raster Output Scanner utilizes pulse width modulation in conjunction with spatial filtering to form three exposure levels at the surface of a charged photoreceptor medium, one of the levels associated with a specific color. This type of scanner with a nominal video rendering experiences a color line growth in the process direction. The line growth problem is caused by a coherent optical effect. The resultant output print has bolded color lines in the process direction. Several techniques are set forth to compensate for this line growth. In a preferred technique, the video data stream is modified by locating or positioning video pulses representing white information at the start of an associated pixel time period. When the color pixel is imaged, it will therefore, always abut an adjoining white pulse and will be inhibited from spreading into the adjacent pixel period. Other techniques rely upon inversion of white pulses, or separation of white pulses into two signals, each segment moved to the beginning and the end of the associated pixel period. According to another technique, the input data stream is buffered and pixel groups examined to identify neighboring white and color signals. These signals are then either narrowed or in the case of a sequence of color signals, the lead and trail edge of the color signals are trimmed.
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