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1. 发明授权

US06775417B2 Fixed-rate block-based image compression with inferred pixel values 有权
标题翻译：具有推断像素值的固定速率块图像压缩
公开(公告)号：US06775417B2
公开(公告)日：2004-08-10
申请号：US10052613
申请日：2002-01-17
申请人： Zhou Hong , Konstantine I. Iourcha , Krishna S. Nayak
发明人： Zhou Hong , Konstantine I. Iourcha , Krishna S. Nayak
IPC分类号： G06K938
CPC分类号： G06T9/005 , G06T9/00 , H03M7/30 , H04N19/12 , H04N19/124 , H04N19/14 , H04N19/176 , H04N19/186 , H04N19/436 , H04N19/91 , H04N19/94
摘要： An image processing system including an image encoder and image decoding system is provided. The image encoder system includes an image decomposer, a block encoder, and an encoded image composer. The image decomposer decomposes the image into blocks. The block encoder which includes a selection module, a codeword generation module and a construction module, processes the blocks. Specifically, the selection module computes a set of parameters from image data values of a set of image elements in the image block. The codeword generation module generates codewords which the construction module uses to derive a set of quantized image data values. The construction module then maps each of the image element's original image data values to an index to one of the derived image data values. The image decoding system reverses this process to reorder decompressed image blocks in an output data file.
摘要翻译：提供了包括图像编码器和图像解码系统的图像处理系统。图像编码器系统包括图像分解器，块编码器和编码图像编辑器。图像分解器将图像分解成块。包括选择模块，码字生成模块和构造模块的块编码器处理这些块。具体地，选择模块根据图像块中的一组图像元素的图像数据值来计算一组参数。码字生成模块生成码字，构造模块用于导出一组量化的图像数据值。然后，构建模块将每个图像元素的原始图像数据值映射到导出的图像数据值之一的索引。图像解码系统反转该过程以对输出数据文件中的解压缩图像块进行重新排序。

2. 发明授权

US06707953B1 Image processing apparatus interpolating thin line included in input image data 有权
标题翻译：图像处理装置插入输入图像数据中包含的细线
公开(公告)号：US06707953B1
公开(公告)日：2004-03-16
申请号：US09347276
申请日：1999-07-06
申请人： Kentaro Iida
发明人： Kentaro Iida
IPC分类号： G06K938
CPC分类号： G06K9/38 , G06K2209/01 , G06T5/003 , G06T5/20 , G06T2207/20192
摘要： In order to correct a thin line to be thin and dense and to prevent the thin line from becoming patchy after binarization of image data without specifying the thin line from image data, an image processing apparatus has the following features. Density peak degrees in four directions are detected by density peak detection filters for four directions, on each pixel. Among the detected density peak degrees of four directions, the maximum density peak degree is used as a degree of thinness of the pixel. For each pixel, the degree of thinness is multiplied by a weight coefficient, and a value obtained by adding the resulting value to the pixel density is used as the new pixel density.
摘要翻译：为了将细线校正为薄而致密，并且在不指定图像数据的细线的情况下防止细线在二值化图像数据之后变得斑点，因此图像处理装置具有以下特征。在每个像素上，通过四个方向的密度峰值检测滤波器检测四个方向的密度峰值。在检测到的四个方向的密度峰值中，最大密度峰值被用作像素的薄度。对于每个像素，将薄度度乘以权重系数，并将通过将所得到的值与像素密度相加而获得的值用作新的像素密度。

3. 发明授权

US06219460B1 Information reproducing system, information recording medium, and information recording apparatus 失效
标题翻译：信息再现系统，信息记录介质和信息记录装置
公开(公告)号：US06219460B1
公开(公告)日：2001-04-17
申请号：US09255256
申请日：1999-02-22
申请人： Seiji Tatsuta
发明人： Seiji Tatsuta
IPC分类号： G06K938
CPC分类号： G06K19/06037 , G06K7/10851 , G06K7/14 , G06K9/38
摘要： A binarizing section generates binarized data from an image signal of a dot code on an information recording medium read by a code reading section. The binarizing section has a reference dot detection section, a dot area measuring section, a threshold value modifying section and a threshold value determining section. The reference dot detection section binarizes the image signal with a predetermined threshold value prior to generating binarized data to detect a reference dot from a binarized code image. The dot area measuring section measures the area of the reference dot detected by the reference dot detection section. The threshold value modifying section modifies the threshold value for binarization in such a manner that the area measured by the dot area measuring section approaches a predetermined target value. The threshold value determining section binarizes the image signal with the threshold value modified by the threshold value modifying section.
摘要翻译：二值化部分从由代码读取部读取的信息记录介质上的点代码的图像信号生成二值化数据。二值化部分具有参考点检测部分，点区域测量部分，阈值修改部分和阈值确定部分。参考点检测部分在生成二值化数据之前将图像信号二值化为具有预定阈值，以从二值化代码图像检测参考点。点区域测量部分测量由参考点检测部分检测的参考点的面积。阈值修正部以使由点区域测量部测量的面积接近预定目标值的方式修改用于二值化的阈值。阈值确定部分将图像信号与由阈值修改部分修改的阈值进行二值化。

4. 发明授权

US06188794B1 Image signal coding system 有权
标题翻译：图像信号编码系统
公开(公告)号：US06188794B1
公开(公告)日：2001-02-13
申请号：US09315038
申请日：1999-05-20
申请人： Hirofumi Nishikawa , Yoshihisa Yamada , Tokumichi Murakami , Kohtaro Asai
发明人： Hirofumi Nishikawa , Yoshihisa Yamada , Tokumichi Murakami , Kohtaro Asai
IPC分类号： G06K938
CPC分类号： H04N19/577 , H04N19/105 , H04N19/112 , H04N19/119 , H04N19/124 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/152 , H04N19/16 , H04N19/172 , H04N19/176 , H04N19/61
摘要： An adaptive blocking coding system selects an effective blocking of an input image signal to be encoded in accordance with the correlation between fields, even if motion is detected between the fields. The blocking patterns include an individual field blocking, a non-interlace blocking, a split blocking and an inverted split blocking. Further, the coding system searches for motion from both odd and even fields of a frame for producing a motion compensated prediction signal in order to provide high-efficient coding.
摘要翻译：即使在场之间检测到运动，自适应阻塞编码系统根据场之间的相关性选择要编码的输入图像信号的有效阻塞。阻塞模式包括单独的场阻塞，非交错阻塞，分割阻塞和反向拆分阻塞。此外，编码系统搜索用于产生运动补偿预测信号的帧的奇数和偶数场的运动，以便提供高效编码。

5. 发明授权

US06798919B2 System and method for providing a scalable dynamic objective metric for automatic video quality evaluation 失效
标题翻译：用于提供自动视频质量评估的可扩展动态客观度量的系统和方法
公开(公告)号：US06798919B2
公开(公告)日：2004-09-28
申请号：US09734823
申请日：2000-12-12
申请人： Walid S. I. Ali , Cornelis Van Zon
发明人： Walid S. I. Ali , Cornelis Van Zon
IPC分类号： G06K938
CPC分类号： H04N17/004
摘要： There is disclosed an improved system and method for providing a scalable dynamic objective metric for automatically evaluating the video quality of a video image. The system comprises an objective metric controller that is capable of receiving a plurality of objective metric figures of merit from a plurality of objective metric model units. The system determines a scalable dynamic objective metric from a weighted average of the plurality of objective metric figures of merit. The scalable dynamic objective metric represents the best correlation of objective metric measurements of the video image with subjective measurements of the video image. The weight value of individual objective metric figures of merit may be increased or decreased depending upon the type of video image being evaluated. Individual objective metric figures of merit may be added to the system or deleted from the system. The system is capable of continually determining a new value of the scalable dynamic objective metric as the plurality of objective metric model units receive new video images.
摘要翻译：公开了一种用于提供用于自动评估视频图像的视频质量的可扩展动态客观度量的改进的系统和方法。该系统包括能够从多个客观度量模型单元接收多个客观量度品质因数的客观量度控制器。该系统根据多个客观量度品质因数的加权平均来确定可伸缩的动态客观指标。可扩展动态客观度量表示视频图像的客观度量测量与视频图像的主观测量的最佳相关性。个体客观量度品质因数的权重值可以根据所评估的视频图像的类型而增加或减少。可以将个人客观指标品质因素加入系统或从系统中删除。当多个客观量度模型单元接收新的视频图像时，系统能够连续地确定可伸缩动态客观量度的新值。

6. 发明授权

US06608941B1 Image processing apparatus 有权
标题翻译：图像处理装置
公开(公告)号：US06608941B1
公开(公告)日：2003-08-19
申请号：US09316316
申请日：1999-05-21
申请人： Michiyuki Suzuki , Yoshinori Hayashi
发明人： Michiyuki Suzuki , Yoshinori Hayashi
IPC分类号： G06K938
CPC分类号： H04N1/409
摘要： An object of the present invention is to avoid such a problem that white dropouts and the Moire phenomenon occur in a filter-processed image. A filter unit employed in an image processing apparatus provided within a copying machine first selects as a pixel of interest any one of a plurality of reversed density pixels which constitute an image to be processed. Next, the filter unit uses density of this interest pixel before being corrected, density of pixels located at peripheral portions of this interest pixel, and a predetermined filter coefficient so as to calculate a weighted average value for each of the density. Finally, the filter unit compares the density of this interest pixel before being corrected with the weighted average values to output as a corrected density of this interest pixel, such a value approximated to a density equivalent to a black level. Furthermore, the filter unit compares the density of the interest pixel before being corrected with the predetermined reference density and, only when the density before being corrected is less than the reference density, it outputs the above-described weighted average value as the corrected density of this interest pixel irrespect to such a large/small relationship between the density before being corrected and the weighted average value.
摘要翻译：本发明的目的在于避免在滤波处理图像中出现白色缺失和莫尔现象的问题。在复印机内设置的图像处理装置中采用的滤波器单元首先选择构成要处理的图像的多个反密度像素中的任意一个的关注像素。接下来，滤波器单元在校正之前使用该兴趣像素的浓度，并且位于该关注像素的周边部分处的像素的浓度以及预定的滤波器系数，以便计算每个浓度的加权平均值。最后，滤波器单元将校正之前的该兴趣像素的密度与加权平均值进行比较，以作为该感兴趣像素的校正密度输出，其近似于等于黑色电平的密度的值。此外，滤波器单元将校正前的感兴趣像素的密度与预定参考密度进行比较，并且仅当校正前的密度小于参考密度时，其输出上述加权平均值作为校正密度这个兴趣像素不考虑在校正前的密度与加权平均值之间的这种大/小关系。

7. 发明授权

US06411741B1 Image processing apparatus 失效
标题翻译：图像处理装置
公开(公告)号：US06411741B1
公开(公告)日：2002-06-25
申请号：US09231900
申请日：1999-01-14
申请人： Naoko Hamamura , Haruko Kawakami
发明人： Naoko Hamamura , Haruko Kawakami
IPC分类号： G06K938
CPC分类号： H04N1/40062 , G06T5/002 , G06T5/003 , G06T5/20 , G06T2207/10008 , G06T2207/10024 , G06T2207/20012 , G06T2207/20192 , G06T2207/30176
摘要： An image processing apparatus aiming at enhancing image quality of a character (line image component) includes an image area discrimination section for discriminating an image area (character area). In the image area discrimination section, a color converter section converts an input CMY signal to Y′-, I′- and Q′-signals for discrimination. An LPF section performs a smoothing process for the Y′-signal and an output signal from a line memory, which is a line delay signal of the Y′-signal. A density gradient extraction section generates a density gradient equivalent amount from a smoothed output from the LPF section and output signals from line memories, which are line delay signals of the output form the LPF section. An arithmetic section performs an arithmetic operation based on the density gradient equivalent amount generated by the arithmetic section, the Y′-signal, and a predetermined value from a main CPU.
摘要翻译：旨在提高字符（行图像分量）的图像质量的图像处理装置包括用于识别图像区域（字符区域）的图像区域辨别部分。在图像区域识别部分中，颜色转换器部分将输入CMY信号转换为用于鉴别的Y'，I'和Q'信号。 LPF部分对来自作为Y'信号的行延迟信号的行存储器的Y'信号和输出信号执行平滑处理。密度梯度提取部分从LPF部分的平滑输出产生浓度梯度当量，并从作为LPF部分的输出的行延迟信号的行存储器输出信号。算术部根据由运算部生成的密度梯度等效量，Y'信号和来自主CPU的规定值进行算术运算。

8. 发明授权

US06275620B1 Method and apparatus for pre-processing mixed raster content planes to improve the quality of a decompressed image and increase document compression ratios 有权
公开(公告)号：US06275620B1
公开(公告)日：2001-08-14
申请号：US09731584
申请日：2000-12-07
申请人： Ricardo L. de Queiroz , Reiner Eschbach , William A. Fuss , Robert R. Buckley
发明人： Ricardo L. de Queiroz , Reiner Eschbach , William A. Fuss , Robert R. Buckley
IPC分类号： G06K938
摘要： An improved technique for processing a color or gray scale pixel map representing a document is disclosed. The pixel map is decomposed into a three-plane representation, a reduced-resolution “upper” plane, a reduced-resolution “lower” plane, and a high-resolution binary selector plane. The “upper” and “lower” planes contain the color or gray scale for the page as well as the continuous tone pictures that are contained on the page. The selector plane stores information for selecting from either the foreground plane or background plane during decompression. Information contained in the selector plane is first used to pre-process the upper and lower planes to reduce the amount of data on each of the other two planes that will be subjected to further processing. Each of the pre-processed planes is compressed using a compression technique optimal for the type of data that resides upon it.

9. 发明授权

US06236754B1 Image modification to reduce susceptibility to misregistration 失效
标题翻译：图像修改以减少错配的易感性
公开(公告)号：US06236754B1
公开(公告)日：2001-05-22
申请号：US09004282
申请日：1998-01-08
申请人： Steven J. Harrington
发明人： Steven J. Harrington
IPC分类号： G06K938
CPC分类号： H04N1/58
摘要： A method for making continuous-tone, raster color images that are less susceptible to the effects of misregistration is described. For each pixel the present method determines the component-wise maximum positive color difference for the pixel from its neighbors. A fraction of this difference is then determined and then added to each pixel's color value, thus eliminating annoying white space between color transitioning in pixels. The particular fractional value is a function of the pixel's luminance.
摘要翻译：描述了一种制造连续色调光栅彩色图像的方法，该方法不太容易受到重合失调的影响。对于每个像素，本方法确定来自其邻居的像素的分量最大正色差。然后确定该差异的一小部分，然后将其添加到每个像素的颜色值，从而消除以像素为单位的颜色转换之间的烦人的空白。特定分数值是像素亮度的函数。

10. 发明授权

US06771831B2 Data compression method and system using globally optimal scalar quantization 有权
标题翻译：数据压缩方法和系统采用全局最优标量量化
公开(公告)号：US06771831B2
公开(公告)日：2004-08-03
申请号：US10298179
申请日：2002-11-15
申请人： Michelle Effros , Dan Muresan
发明人： Michelle Effros , Dan Muresan
IPC分类号： G06K938
CPC分类号： H04N19/124 , H03M7/30 , H04N19/126 , H04N19/147 , H04N19/19 , H04N19/94
摘要： A signal encoding/decoding system and method are provided, where a signal quantizer is designed by minimizing a target function in accordance with a rate/distortion tradeoff. The system and method can be applied to give lossy compression of data for graphic or music files and also to smart-server applications, in accordance with the available bandwidth.
摘要翻译：提供了一种信号编码/解码系统和方法，其中通过根据速率/失真折衷来最小化目标函数来设计信号量化器。该系统和方法可以应用于根据可用带宽对图形或音乐文件以及智能服务器应用程序的数据进行有损压缩。

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