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1. 发明授权

US06356654B1 Systems and methods for template matching of multicolored images 有权
标题翻译：多彩图像模板匹配的系统和方法
公开(公告)号：US06356654B1
公开(公告)日：2002-03-12
申请号：US09219705
申请日：1998-12-23
申请人： Robert P. Loce , Michael S. Cianciosi , Ying-Wei Lin
发明人： Robert P. Loce , Michael S. Cianciosi , Ying-Wei Lin
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。

2. 发明授权

US5742703A Method and apparatus for the resolution enhancement of gray-scale images that include text and line art 失效
标题翻译：用于分辨率增强灰度图像的方法和装置，包括文本和线条艺术
公开(公告)号：US5742703A
公开(公告)日：1998-04-21
申请号：US540998
申请日：1995-10-11
申请人： Ying-Wei Lin , Robert P. Loce , Michael Branciforte
发明人： Ying-Wei Lin , Robert P. Loce , Michael Branciforte
IPC分类号： H04N1/387 , G06T3/40 , G06T5/00 , H04N1/409 , G06K9/34 , G06K9/62 , H04N1/40
CPC分类号： H04N1/4092 , G06T3/403
摘要： The present invention is a method and apparatus for resolution enhancement of gray-scale input images including text and line art, and more particularly to a filtering method and image processing apparatus for enhancement of high contrast line edges found in continuous tone (gray-scale) images without requiring that the input image data include predetermined tag bits to identify region types (e.g., continuous tone or text and line art).
摘要翻译：本发明是一种用于分辨率增强灰度输入图像的方法和装置，包括文本和行画，更具体地说，涉及一种用于增强连续色调（灰度级）中发现的高对比度线边缘的滤波方法和图像处理装置，图像，而不需要输入图像数据包括用于识别区域类型（例如，连续色调或文本和线条艺术）的预定标签位。

3. 发明授权

US5493419A Stack filters for 1-to-N bit image processing in electronic printers 失效
公开(公告)号：US5493419A
公开(公告)日：1996-02-20
申请号：US502791
申请日：1995-07-14
申请人： Ronald E. Jodoin , Robert P. Loce , R. Victor Klassen , Ying-Wei Lin
发明人： Ronald E. Jodoin , Robert P. Loce , R. Victor Klassen , Ying-Wei Lin
IPC分类号： G06T5/00 , H04N1/40 , H04N1/405
CPC分类号： H04N1/40075
摘要： The present invention is a method and apparatus for the enhancement of 1 bit per pixel image signals to produce a multiple-bit per pixel form. A binary input image is passed through a plurality of filters to generate level slices. The filters are stack filters implemented as look-up table or template-based filters, morphological filters, or any similar binary-to-binary filters that could be used to generate level slices. Each of the N-1 filters is used to produce the slices, where N is the number of possible gray-scale levels desired in the output image. Once the slices are generated, the resulting binary image data therein is recombined, by adding or stacking, to produce the desired multiple-bit per pixel output.

4. 发明授权

US5471320A Stack filters for 1-to-N bit image processing in electronic printers 失效
标题翻译：用于电子打印机中1到N位图像处理的堆叠滤波器
公开(公告)号：US5471320A
公开(公告)日：1995-11-28
申请号：US241432
申请日：1994-05-11
申请人： Ronald E. Jodoin , Robert P. Loce , R. Victor Klassen , Ying-Wei Lin
发明人： Ronald E. Jodoin , Robert P. Loce , R. Victor Klassen , Ying-Wei Lin
IPC分类号： G06T5/00 , H04N1/40 , H04N1/407
CPC分类号： H04N1/40075
摘要： The present invention is a method and apparatus for the enhancement of 1 bit per pixel image signals to produce a multiple-bit per pixel form. A binary input image is passed through a plurality of filters to generate level slices. The filters are stack filters implemented as look-up table or template-based filters, morphological filters, or any similar binary-to-binary filters that could be used to generate level slices. Each of the N-1 filters is used to produce the slices, where N is the number of possible gray-scale levels desired in the output image. Once the slices are generated, the resulting binary image data therein is recombined, by adding or stacking, to produce the desired multiple-bit per pixel output.
摘要翻译：本发明是一种用于增强每像素1位像素信号以产生每像素多位的形式的方法和装置。二进制输入图像通过多个滤波器以生成电平切片。过滤器是实现为查找表或基于模板的过滤器，形态过滤器或可用于生成级别切片的任何类似的二进制到二进制过滤器的堆栈过滤器。 N-1滤波器中的每一个用于产生切片，其中N是输出图像中所需的可能的灰度级数。一旦片被生成，其中的所得到的二进制图像数据通过加法或堆叠进行重组，以产生期望的多位每像素输出。

5. 发明授权

US06839152B2 Adaptive filtering method and apparatus for descreening scanned halftoned image representations 失效
标题翻译：用于对已扫描的半色调图像表示进行去网的自适应滤波方法和装置
公开(公告)号：US06839152B2
公开(公告)日：2005-01-04
申请号：US09731131
申请日：2000-12-06
申请人： Zhigang Fan , Ying-Wei Lin , Hong Li
发明人： Zhigang Fan , Ying-Wei Lin , Hong Li
IPC分类号： G06T5/00 , G06T5/20 , H04N1/40 , H04N1/405 , G06K15/00
CPC分类号： H04N1/40075
摘要： An adaptive filtering method and apparatus for descreening a scanned halftoned image representation is disclosed. The apparatus includes an image input subsystem; a processing subsystem for processing halftoned image data provided by the image input subsystem; and software/firmware means operative on the processing subsystem for a) low-pass filtering a halftoned input pixel value provided by the image input subsystem to produce a low-pass filtered pixel value; b) notch-filtering the halftoned input pixel value to produce a notch-filtered pixel value; c) determining a local contrast value for the halftoned input pixel value; and d) producing a descreened output pixel value based on the low-pass filtered pixel value, the notch-filtered pixel value, or a combination of the low-pass filtered pixel value and the notch-filtered pixel value depending on the local contrast value.

6. 发明申请

US20050281434A1 Magnetic watermark for text documents 失效
标题翻译：文本文档的磁性水印
公开(公告)号：US20050281434A1
公开(公告)日：2005-12-22
申请号：US10871285
申请日：2004-06-18
申请人： John Handley , Zhigang Fan , Raphael Bov , Ying-Wei Lin
发明人： John Handley , Zhigang Fan , Raphael Bov , Ying-Wei Lin
IPC分类号： G06K9/00 , G06K9/18
CPC分类号： G06K9/186 , G06K9/18
摘要： The present invention is a method and apparatus for applying magnetic ink character recognition (MICR) technology to enable the embedding of coded information within text characters of a document.
摘要翻译：本发明是一种用于应用磁墨水字符识别（MICR）技术的方法和装置，以便能够将文本中的编码信息嵌入到文本文本内。

7. 发明授权

US06347115B1 Method and system for predictive coding of images treated with the Roberts Method 失效
标题翻译：用Roberts方法处理的图像的预测编码方法和系统
公开(公告)号：US06347115B1
公开(公告)日：2002-02-12
申请号：US09081788
申请日：1998-05-20
申请人： Ying-Wei Lin , Zhigang Fan
发明人： Ying-Wei Lin , Zhigang Fan
IPC分类号： H04B166
CPC分类号： H04B1/66 , G06T9/004 , H04B1/707 , H04B2201/70715
摘要： The method and system of this invention predictively encodes and decodes an image signal that has been treated with the Roberts Method. The method and system generates a noise signal that is substantially similar to the noise signal generated during the Roberts Method treatment, calculates a range of values for the original image signal based upon an image signal from a different pixel location, predicts the image signal based upon the range of values and the noise signal and calculates an error signal that is encoded. The decoding method and system operates in reverse of the encoding method and system.
摘要翻译：本发明的方法和系统对用Roberts方法处理过的图像信号进行预测编码和解码。该方法和系统产生基本上类似于罗伯茨方法处理期间产生的噪声信号的噪声信号，基于来自不同像素位置的图像信号计算原始图像信号的值的范围，基于来自不同像素位置的图像信号值的范围和噪声信号，并计算编码的误差信号。解码方法和系统与编码方法和系统相反。

8. 发明授权

US07424151B2 Method and system for image classification and halftone frequency detection 有权
标题翻译：图像分类和半色调频率检测方法与系统
公开(公告)号：US07424151B2
公开(公告)日：2008-09-09
申请号：US10861310
申请日：2004-06-04
申请人： Ying-Wei Lin , Shen-Ge Wang , Beilei Xu
发明人： Ying-Wei Lin , Shen-Ge Wang , Beilei Xu
IPC分类号： G06K9/34
CPC分类号： G06K9/00456 , H04N1/40062
摘要： A system and method for classifying an image block of a printed image into contone, halftone, or error diffusion classes, includes scanning the printed image; selecting an n by n block of pixels from the scanned image in a luminance channel; calculating an array of DCT coefficients of the pixel block, wherein the calculated DCT coefficients are representative of spatial frequency and spatial orientation of the pixel block; comparing the array of DCT coefficients with an array of predetermined values, wherein the array of predetermined values are indicative of contone, halftone and error diffusion classes; and determining the image classification of the pixel block based on the comparison of the DCT coefficients with the array of predetermined values. If the image is determined to be halftone, then the method further evaluates the DCT coefficients to determine the frequency of the halftone screen.
摘要翻译：将印刷图像的图像块分类为连续色调，半色调或误差扩散等级的系统和方法包括扫描印刷图像; 在亮度通道中从扫描图像中选择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系数表示所述像素块的空间频率和空间取向; 将DCT系数阵列与预定值的阵列进行比较，其中预定值的阵列指示连续色调，半色调和误差扩散等级; 以及基于DCT系数与预定值的阵列的比较来确定像素块的图像分类。如果图像被确定为半色调，则该方法进一步评估DCT系数以确定半色调屏幕的频率。

9. 发明申请

US20050271277A1 Method and system for image classification and halftone frequency detection 有权
标题翻译：用于图像分类和半色调频率检测的方法和系统
公开(公告)号：US20050271277A1
公开(公告)日：2005-12-08
申请号：US10861310
申请日：2004-06-04
申请人： Ying-Wei Lin , Shen-Ge Wang , Beilei Xu
发明人： Ying-Wei Lin , Shen-Ge Wang , Beilei Xu
IPC分类号： G03G15/00 , G06K9/20 , G06K9/34 , G06K9/46 , G06T7/40 , H04N1/40
CPC分类号： G06K9/00456 , H04N1/40062
摘要： A system and method for classifying an image block of a printed image into contone, halftone, or error diffusion classes, includes scanning the printed image; selecting an n by n block of pixels from the scanned image in a luminance channel; calculating an array of DCT coefficients of the pixel block, wherein the calculated DCT coefficients are representative of spatial frequency and spatial orientation of the pixel block; comparing the array of DCT coefficients with an array of predetermined values, wherein the array of predetermined values are indicative of contone, halftone and error diffusion classes; and determining the image classification of the pixel block based on the comparison of the DCT coefficients with the array of predetermined values. If the image is determined to be halftone, then the method further evaluates the DCT coefficients to determine the frequency of the halftone screen.
摘要翻译：将印刷图像的图像块分类为连续色调，半色调或误差扩散等级的系统和方法包括扫描印刷图像; 在亮度通道中从扫描图像中选择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系数表示所述像素块的空间频率和空间取向; 将DCT系数阵列与预定值的阵列进行比较，其中预定值的阵列指示连续色调，半色调和误差扩散等级; 以及基于DCT系数与预定值的阵列的比较来确定像素块的图像分类。如果图像被确定为半色调，则该方法进一步评估DCT系数以确定半色调屏幕的频率。

10. 发明授权

US4811115A Image processing apparatus using approximate auto correlation function to detect the frequency of half-tone image data 失效
标题翻译：使用近似自相关函数的图像处理装置来检测半色调图像数据的频率
公开(公告)号：US4811115A
公开(公告)日：1989-03-07
申请号：US109677
申请日：1987-10-16
申请人： Ying-Wei Lin , Anthony F. Calarco
发明人： Ying-Wei Lin , Anthony F. Calarco
IPC分类号： G06T7/00 , H04N1/40
CPC分类号： H04N1/40062
摘要： Method and apparatus for processing a stream of image pixel data to determine the presence of high frequency half-tone data. The arrangement applies the function ##EQU1## to a stream of image pixel data. The presence of minimums of .phi.(k) at times indicative of predetermined half-tone image frequencies is detected and an output signal indicative of the presence or absence of minimums at the predetermined half-tone image frequencies is provided. More particularly, the two's complement of the stream of image pixel data is added to each of a plurality of differently delayed signals derived from the original stream of image pixel data. The absolute value is taken of the resulting function. The signal is summed for a selected number of pixels, corrected for noise, and reviewed for minimums. Minimums occurring at selected positions in the pixel stream indicate certain frequencies of the data. An output is created based on frequency indications.
摘要翻译：用于处理图像像素数据流以确定高频半色调数据的存在的方法和装置。该装置将功能应用于图像像素数据流。检测在指示预定的半色调图像频率的时刻存在最小的phi（k），并且提供指示在预定的半色调图像频率下存在或不存在最小值的输出信号。更具体地，将图像像素数据流的二进制补码添加到从原始图像像素数据流导出的多个不同延迟的信号中的每一个。取得所得函数的绝对值。对于所选数量的像素，对噪声进行校正，并对最小值进行检查，求和信号。出现在像素流中的选定位置的最小值表示数据的某些频率。基于频率指示创建输出。

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