专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明申请

US20120024953A1 DETECTION OF SECURITY MARKS SIMULATING NATURAL DEFECTS FOR EMBEDDING INFORMATION IN DOCUMENTS 有权
标题翻译：检测文件中嵌入信息的自然缺陷的安全标志
公开(公告)号：US20120024953A1
公开(公告)日：2012-02-02
申请号：US13238377
申请日：2011-09-21
申请人： Zhigang Fan , Reiner Eschbach , Calvin John Marlett , William A. Fuss , James R. Low , Shen-ge Wang
发明人： Zhigang Fan , Reiner Eschbach , Calvin John Marlett , William A. Fuss , James R. Low , Shen-ge Wang
IPC分类号： G06K19/06 , G06K7/10
CPC分类号： B42D25/305 , B42D15/0073 , B42D25/21 , B42D25/29 , B42D2035/02 , B42D2035/50
摘要： A system for generating a security mark includes a data reception component that receives information. A security mark generation component in communication with the data reception component generates at least one security mark configuration based at least in part upon the received information. The at least one security mark configuration includes at least one simulation mark which resembles a natural feature. An application component applies one configuration of the at least one security mark configurations to a recipient. The applied security mark configuration obeys at least one rule whereby the security mark is distinguishable from the natural feature which it resembles by a system for detection of security marks.
摘要翻译：用于生成安全标记的系统包括接收信息的数据接收部件。与数据接收组件通信的安全标记生成组件至少部分地基于所接收的信息来生成至少一个安全标记配置。所述至少一个安全标记配置包括至少一个类似于自然特征的模拟标记。应用组件将至少一个安全标记配置的一个配置应用于接收者。应用的安全标记配置遵循至少一个规则，其中安全标记与其由用于检测安全标记的系统类似的自然特征区分开。

42. 发明授权

US08090141B2 System and method to automatically establish preferred area for image-wise watermark 有权
标题翻译：自动建立图像水印的优选区域的系统和方法
公开(公告)号：US08090141B2
公开(公告)日：2012-01-03
申请号：US11343668
申请日：2006-01-31
申请人： Reiner Eschbach , Shen-ge Wang , Zhigang Fan
发明人： Reiner Eschbach , Shen-ge Wang , Zhigang Fan
IPC分类号： G06K9/00 , H04N1/40 , G09C3/00
CPC分类号： H04N1/32331 , G06T1/0028 , G06T7/73 , G06T2201/0051 , G06T2201/0061 , H04N1/32187 , H04N1/32325
摘要： A system and method are disclosed for determining preferred image locations for placing watermark information (both hidden and obvious). The disclosure includes at least three criteria (image similarity, contrast, and image value range) that may be used alone or in combination to determine a preferred area of the target image for placing the watermark depending upon the user's intent for the mark (hiding or showing watermark).
摘要翻译：公开了用于确定用于放置水印信息（隐藏和明显）的优选图像位置的系统和方法。本公开包括至少三个标准（图像相似性，对比度和图像值范围），其可以单独使用或组合使用，以根据用户对标记的意图来确定用于放置水印的目标图像的优选区域（隐藏或显示水印）。

43. 发明授权

US07649649B2 Determining the color match between image data and graphics objects 失效
标题翻译：确定图像数据和图形对象之间的颜色匹配
公开(公告)号：US07649649B2
公开(公告)日：2010-01-19
申请号：US11282850
申请日：2005-11-17
申请人： Reiner Eschbach , Zhigang Fan , David E. Rumph
发明人： Reiner Eschbach , Zhigang Fan , David E. Rumph
IPC分类号： G06F15/00 , H04N1/405 , G06T5/00 , G06K9/00
CPC分类号： G06T7/90
摘要： A system/method of color match assessment for electronic documents includes receiving digital data defining a composite electronic document including a raster image object having an edge and a color graphics object bordering the edge of the raster image object. The pixel color values defining the edge of the raster image object are processed to estimate a local color variance of the pixel color values. The local color variance is used to determine if the edge can be color matched to the bordering color graphics object. If the edge can be color matched, a match color for the edge is derived. The match color is associated with the digital data defining the electronic document so that a downstream object color match system can use the match color as needed, e.g., to adjust the color of the bordering color graphics object to ensure a match with the edge of the raster image object when the electronic document is printed using a xerographic printing process.
摘要翻译：用于电子文档的颜色匹配评估的系统/方法包括接收定义包括具有边缘的光栅图像对象和与光栅图像对象边缘接近的彩色图形对象的复合电子文档的数字数据。处理定义光栅图像对象边缘的像素颜色值，以估计像素颜色值的局部颜色方差。局部颜色方差用于确定边缘是否可以与边界颜色图形对象进行颜色匹配。如果边缘可以匹配，则会导出边缘的匹配颜色。匹配颜色与定义电子文档的数字数据相关联，使得下游对象颜色匹配系统可以根据需要使用匹配颜色，例如，调整边界颜色图形对象的颜色，以确保与边缘的匹配使用静电印刷过程打印电子文档时的光栅图像对象。

44. 发明申请

US20090262402A1 SHOW-THROUGH REDUCTION METHOD AND SYSTEM 失效
标题翻译：显示减少方法和系统
公开(公告)号：US20090262402A1
公开(公告)日：2009-10-22
申请号：US12103978
申请日：2008-04-16
申请人： Zhigang Fan , Reiner Eschbach , Martin S. Maltz , Judith Stinehour
发明人： Zhigang Fan , Reiner Eschbach , Martin S. Maltz , Judith Stinehour
IPC分类号： H04N1/04
CPC分类号： H04N1/4095
摘要： A show-through reduction method is disclosed. The method is designed to deal with both light and severe show-through. The method focuses mostly on text documents, with characters possibly appearing in multiple gray levels, although the method can also be extended to color documents. As in the prior art, the front and back pages are processed in pairs. However, no perfect page alignment is assumed here, since we are dealing with real images. Instead, a front and back registration is performed as the first step before the pages are further analyzed. In this method, we are aligning the front page content with its show-through appearing in the back side, and the back page content with its show-through appearing in the front side. Once the two sides are aligned, masks are generated for both sides to differentiate severe show-through and light color content regions. Finally, different TRCs are applied to different regions. The show-through is reduced and the page contents are retained.
摘要翻译：公开了一种透视简化方法。该方法旨在处理轻型和重型展示。该方法主要集中在文本文档上，字符可能出现在多个灰度级，尽管该方法也可以扩展到彩色文档。如现有技术那样，前页和后页成对处理。然而，在这里假设没有完美的页面对齐，因为我们正在处理真实的图像。相反，在进一步分析页面之前，执行正面和背面注册作为第一步。在这种方法中，我们正在将首页内容与其后面的显示对齐，后端页面的内容与其显示出现在前面。一旦双方对齐，双方将产生掩模，以区分严重的透明和浅色内容区域。最后，不同的TRC应用于不同的地区。展示次数减少，页面内容保留。

45. 发明申请

US20090214113A1 Removing Ringing and Blocking Artifacts from JPEG Compressed Document Images 失效
标题翻译：从JPEG压缩文档图像中删除振铃和阻塞人工制品
公开(公告)号：US20090214113A1
公开(公告)日：2009-08-27
申请号：US12463768
申请日：2009-05-11
申请人： Basak Oztan , Zhigang Fan , Reiner Eschbach , Amal Z. Malik
发明人： Basak Oztan , Zhigang Fan , Reiner Eschbach , Amal Z. Malik
IPC分类号： G06K9/00 , G06K9/40 , G06K9/36
CPC分类号： H04N19/86
摘要： A method of removing ringing and blocking artifacts from a decompressed digital image. In one method, a background value of the digital image a background region and foreground regions is determined, and a threshold value is computed. A mapping of the digital image is then generated by thresholding the digital image based on the threshold value to produce a thresholded image, and enlarging the foreground regions of the thresholded image to form a map image. The mapping includes the background pixels of the map image. The background region of the decompressed digital image is then cleansed based on the mapping. In an alternate method, ringing artifacts are removed from a decompressed digital image based on a signal-to-noise ratio of the image. In yet another alternate embodiment, ringing artifacts are from a decompressed digital color image that includes a chrominance channel and a luminance channel. An alternate embodiment removes ringing and blocking artifacts.
摘要翻译：从解压缩的数字图像中去除振铃和阻塞伪影的方法。在一种方法中，确定数字图像的背景区域和前景区域的背景值，并且计算阈值。然后通过基于阈值阈值化数字图像来产生数字图像的映射，以产生阈值图像，并且放大阈值图像的前景区域以形成地图图像。该映射包括地图图像的背景像素。然后基于映射清理解压缩的数字图像的背景区域。在替代方法中，基于图像的信噪比，从解压缩的数字图像中去除振铃伪像。在又一替代实施例中，振铃伪影来自包括色度通道和亮度通道的解压缩数字彩色图像。替代实施例消除振铃和阻塞伪影。

46. 发明申请

US20080292129A1 EMBEDDING INFORMATION IN DOCUMENT BLANK SPACE 有权
标题翻译：文件空白区嵌入信息
公开(公告)号：US20080292129A1
公开(公告)日：2008-11-27
申请号：US11751665
申请日：2007-05-22
申请人： Zhigang Fan , Reiner Eschbach
发明人： Zhigang Fan , Reiner Eschbach
IPC分类号： G06K9/00
CPC分类号： H04N1/32203 , G06F17/2294 , G06F17/241 , G06T1/0028 , G06T2201/0051 , G06T2201/0061 , H04N1/32208 , H04N1/32229 , H04N2201/3269 , H04N2201/3271
摘要： A method for embedding information in a document includes encoding information as a plurality of data carrying dot patterns. For each of a plurality of blocks of a document page to be rendered, the method includes determining whether the block is blank. Each of the plurality of data carrying dot patterns is embedded in a respective one of the blank blocks. The document with the embedded data carrying dot patterns is rendered.
摘要翻译：用于将信息嵌入到文档中的方法包括编码信息作为多个携带点图案的数据。对于要呈现的文档页面的多个块中的每一个，该方法包括确定块是否为空白。多个数据携带点图案中的每一个被嵌入在相应的一个空白块中。呈现带有点图案的嵌入数据的文档。

47. 发明申请

US20070280551A1 Removing ringing and blocking artifacts from JPEG compressed document images 失效
标题翻译：从JPEG压缩文档图像中删除振铃和块状伪影
公开(公告)号：US20070280551A1
公开(公告)日：2007-12-06
申请号：US11443830
申请日：2006-05-31
申请人： Basak Oztan , Zhigang Fan , Reiner Eschbach , Amal Z. Malik
发明人： Basak Oztan , Zhigang Fan , Reiner Eschbach , Amal Z. Malik
IPC分类号： G06K9/40 , G06K9/44
CPC分类号： H04N19/86
摘要： A method of removing ringing and blocking artifacts from a decompressed digital image. In one method, a background value of the digital image a background region and foreground regions is determined, and a threshold value is computed. A mapping of the digital image is then generated by thresholding the digital image based on the threshold value to produce a thresholded image, and enlarging the foreground regions of the thresholded image to form a map image. The mapping includes the background pixels of the map image. The background region of the decompressed digital image is then cleansed based on the mapping. In an alternate method, ringing artifacts are removed from a decompressed digital image based on a signal-to-noise ratio of the image. In yet another alternate embodiment, ringing artifacts are from a decompressed digital color image that includes a chrominance channel and a luminance channel. An alternate embodiment removes ringing and blocking artifacts.
摘要翻译：从解压缩的数字图像中去除振铃和阻塞伪影的方法。在一种方法中，确定数字图像的背景区域和前景区域的背景值，并且计算阈值。然后通过基于阈值阈值化数字图像来产生数字图像的映射，以产生阈值图像，并且放大阈值图像的前景区域以形成地图图像。该映射包括地图图像的背景像素。然后基于映射清理解压缩的数字图像的背景区域。在替代方法中，基于图像的信噪比，从解压缩的数字图像中去除振铃伪像。在又一替代实施例中，振铃伪影来自包括色度通道和亮度通道的解压缩数字彩色图像。替代实施例消除振铃和阻塞伪影。

48. 发明申请

US20070242891A1 Decompression with reduced ringing artifacts 失效
标题翻译：用减少的振铃文物减压
公开(公告)号：US20070242891A1
公开(公告)日：2007-10-18
申请号：US11402602
申请日：2006-04-12
申请人： Zhigang Fan , Ricardo de Queiroz , Reiner Eschbach , Shen-Ge Wang
发明人： Zhigang Fan , Ricardo de Queiroz , Reiner Eschbach , Shen-Ge Wang
IPC分类号： G06K9/36 , G06K9/46
CPC分类号： H04N19/86 , H04N19/117 , H04N19/136 , H04N19/18 , H04N19/63 , H04N19/80
摘要： A process for improving the reconstruction of images compressed by the wavelet-based JPEG2000 specification. The basic reconstruction is followed by an edge-preserving filter (such as a sigma filter), another transform to the wavelet domain, an adjustment in the wavelet domain to yield the same quantized values as the compressed input image, and, finally, an inverse wavelet transform to yield the improved image. The process reduces the artifacts in sharp text and graphics documents, yielding images that would otherwise require larger files.
摘要翻译：一种改进基于小波JPEG2000规范压缩图像重建的过程。基本重建之后是边缘保留滤波器（如西格玛滤波器），另一个转换为小波域，小波域中的调整产生与压缩输入图像相同的量化值，最后是反向小波变换产生改进的图像。该过程减少了锐利文本和图形文档中的伪影，产生了否则将需要较大文件的图像。

49. 发明申请

US20070150829A1 System and method for dynamic zoom to view documents on small displays 有权
标题翻译：动态缩放的系统和方法可在小显示器上查看文档
公开(公告)号：US20070150829A1
公开(公告)日：2007-06-28
申请号：US11315993
申请日：2005-12-22
申请人： Reiner Eschbach , Emil Rainero , Zhigang Fan , Shen-ge Wang
发明人： Reiner Eschbach , Emil Rainero , Zhigang Fan , Shen-ge Wang
IPC分类号： G06F9/00
CPC分类号： G06F17/211
摘要： A system and method for dynamic zoom adjustment based, in part, upon: the raster data in the user selected local area is disclosed; and/or the knowledge of a prevailing font size in a user selected region such that the text in that region is enlarged to be just readable. To achieve this, the detail in the local area is examined and a zoom factor is calculated that depends on the image detail and/or the viewing screen resolution. A document server may be employed to develop the information needed to enable this functionality. In one embodiment, the information is developed by RIPping the document, and then storing a spatial map of localized details (e.g., font sizes at several display resolutions) to automatically adjust a zoom level or factor and thereby facilitate navigation and reading.
摘要翻译：一种用于动态变焦调整的系统和方法，部分地基于：用户选择的局部区域中的光栅数据; 和/或在用户选择的区域中的主要字体大小的知识，使得该区域中的文本被放大为仅仅是可读的。为了实现这一点，检查局部区域中的细节，并且计算取决于图像细节和/或观看屏幕分辨率的缩放因子。可以使用文档服务器来开发实现该功能所需的信息。在一个实施例中，通过RIP文档来开发信息，然后存储本地化细节（例如，几种显示分辨率的字体大小）的空间图，以自动调整缩放级别或因子，从而便于导航和阅读。

50. 发明授权

US09848105B1 Reducing smear and slow response artifacts in vector error diffusion 失效
公开(公告)号：US09848105B1
公开(公告)日：2017-12-19
申请号：US09080700
申请日：1998-05-18
申请人： Zhigang Fan
发明人： Zhigang Fan
IPC分类号： H04N1/405 , H04N1/60 , G06K15/02
CPC分类号： H04N1/4052 , G06K15/1881 , H04N1/52 , H04N1/6027
摘要： A method of color image processing for quantizing output includes obtaining an input for an object pixel which is represented by a vector in a first color space. A modified input equal to the input plus a sum of errors from other pixels in a neighborhood of the object pixel is generated. For each color component in the first color space, where corresponding color components of the modified input are located with respect to a preset range is determined. If the modified input's color component is greater than the preset range, then that color component for an output is determined to be on; if less than the preset range, then that color component for the output is determine to be off; and, if within the preset range, then that color component for the output is determined to be unknown. A transformed modified input is mapped to a perceptual color space when any color component of the output is unknown. Colors consistent with color components of the output that have already been determined are also mapped to the perceptual color space. The color in the perceptual color space that lies closest to the transformed modified input is chosen. An output in the first color space having color components on and off is generated consistent with the determinations and/or choices made. Error for the object pixel is then calculated as the difference between the output and the modified input.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式