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51. 发明授权

US08068684B2 Compression of digital images of scanned documents 有权
标题翻译：压缩扫描文件的数字图像
公开(公告)号：US08068684B2
公开(公告)日：2011-11-29
申请号：US11744542
申请日：2007-05-04
申请人： Michel Dauw , Pierre Demuelenaere
发明人： Michel Dauw , Pierre Demuelenaere
IPC分类号： G06K9/46 , G06K9/34 , G06K9/36 , H04N1/41
CPC分类号： G06T9/00 , G06K9/00456 , G06K9/34 , G06K9/38 , G06K9/6203 , G06K9/6215 , G06K2209/01 , H04N1/40062 , H04N1/41 , H04N19/21 , H04N19/29 , H04N19/59 , H04N19/85
摘要： A first aspect of the invention relates to a method for creating a binary mask image from an a inputted digital image of a scanned document, comprising the steps of creating a binarized image by binarizing the inputted digital image, detecting first text regions representing light text on a dark background, and inverting the first text regions, such that the inverted first text regions are interpretable in the same way as dark text on a light background. A second aspect of the invention relates to a method for comparing in a binary image a first pixel blob with a second pixel blob to determine whether they represent matching symbols, comprising the steps of detecting a line in one blob not present in the other and/or determining if one of the blobs represents an italicized symbol where the other does not.
摘要翻译：本发明的第一方面涉及一种用于从所输入的扫描文档的数字图像中产生二进制掩模图像的方法，包括以下步骤：通过二进制化所输入的数字图像来创建二值化图像，检测表示轻文本的第一文本区域黑暗背景，并且反转第一文本区域，使得倒置的第一文本区域以与浅色背景上的深色文本相同的方式被解释。本发明的第二方面涉及一种用于在二进制图像中比较第一像素斑点与第二像素斑点以确定它们是否表示匹配符号的方法，包括以下步骤：检测一个斑点中不存在于另一个中的线和/ 或确定其中一个斑块是否表示斜体符号，而另一个则不表示。

52. 发明授权

US07974480B2 Universal fixed-pixel-size ISP scheme 失效
标题翻译：通用固定像素尺寸ISP方案
公开(公告)号：US07974480B2
公开(公告)日：2011-07-05
申请号：US12551406
申请日：2009-08-31
申请人： Jau-Wen Ren
发明人： Jau-Wen Ren
IPC分类号： G06K9/36 , G06K9/46 , H04N1/413 , H04N1/41
CPC分类号： H04N1/40
摘要： An Image Signal Processing unit (ISP) has at least one fixed-size line buffer which is smaller than the width of the image buffer. To handle the image data, the image buffer is divided into regions which are sequentially loaded into the at least one fixed-size line buffer of the ISP for processing. Since functions of the ISP operate with neighboring pixels of the target pixel, margins of the regions need to be transmitted as well. After processing by the ISP, the data is encoded which includes a DCT, Quantization, and VLC. The result is then stored in segments in a buffer storage. VLC also inserts a Restart Marker which is used as a pointer to stitch together all the segments thus producing a new and seamless image.
摘要翻译：图像信号处理单元（ISP）具有至少一个小于图像缓冲器的宽度的固定大小的行缓冲器。为了处理图像数据，图像缓冲器被划分为顺序地加载到ISP的至少一个固定大小的行缓冲器中以进行处理的区域。由于ISP的功能与目标像素的相邻像素一起工作，所以区域的边缘也需要传输。在ISP处理之后，数据被编码，包括DCT，量化和VLC。然后将结果存储在缓冲存储器中的段中。 VLC还插入一个重新启动标记，该标记用作指针，以将所有段拼接在一起，从而产生新的无缝图像。

53. 发明授权

US07773821B2 Method and device for compressing and expanding image data 有权
标题翻译：用于压缩和扩展图像数据的方法和装置
公开(公告)号：US07773821B2
公开(公告)日：2010-08-10
申请号：US11589489
申请日：2006-10-30
申请人： Toshitsugu Yamamoto
发明人： Toshitsugu Yamamoto
IPC分类号： G06K9/36 , H04N1/41 , G06K9/46
CPC分类号： H04N1/41
摘要： A method for compressing image data having pixels arranged like a matrix in a line direction and a sub scan direction orthogonal to the line direction is provided herein. The disclosed method allows for a reduction in memory capacity necessary for the expansion of the data. The method includes the steps of dividing the image data in the line direction and in the sub scan direction into blocks covering a plurality of lines, determining a representative value about density of pixels included in each of the blocks, determining additional information for each line in each of the blocks or for a plurality of lines whose number is smaller than the total number of lines of the block and creating compressed data by using the representative value and the additional information.
摘要翻译：本文提供了一种用于压缩具有与行方向垂直的行方向和副扫描方向上的矩阵排列像素的图像数据的方法。所公开的方法允许减少用于扩展数据所需的存储器容量。该方法包括以下步骤：将沿着行方向和副扫描方向的图像数据划分成覆盖多行的块，确定关于每个块中包括的像素的密度的代表值，确定每行中的每行的附加信息每个块或多个线的数量小于块的总线数，并通过使用代表值和附加信息来创建压缩数据。

54. 发明授权

US07738722B2 Technique for adaptive de-blocking of block-based film grain patterns 有权
标题翻译：基于块的胶片颗粒图案的自适应去块技术
公开(公告)号：US07738722B2
公开(公告)日：2010-06-15
申请号：US11252177
申请日：2005-10-17
申请人： Cristina Gomila , Joan Lllach , Jeffrey Allen Cooper
发明人： Cristina Gomila , Joan Lllach , Jeffrey Allen Cooper
IPC分类号： G06K9/40 , G06K9/36 , G06K9/00 , H04N5/217 , H04N5/228 , H04N1/00 , H04N1/413 , H04N1/41 , H04N1/32
CPC分类号： G06T5/002 , G06T2207/10016 , G06T2207/20204 , H04N5/21 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/46 , H04N19/86
摘要： Reduction in the blockiness of a simulated film grain block can be achieved either by the use of adaptive downscaling or adaptive deblocking filtering to adjust the intensity of the pixels at the block edge in accordance with at least one film grain block parameter, such as film grain size, intensity and texture. Performing such adaptive downscaling or adaptive deblocking filtering achieves improved performance at lower computational cost by avoiding modification of film grain block pixels in lesser affected areas.
摘要翻译：可以通过使用自适应缩小或自适应去块滤波来根据至少一个胶片颗粒块参数（例如胶片颗粒）调整块边缘处的像素的强度来实现模拟胶片颗粒块的阻挡性的减小尺寸，强度和质感。执行这种自适应缩小或自适应去块滤波通过避免在较小影响区域中修改胶片颗粒块像素，以较低的计算成本实现了改进的性能。

55. 发明申请

US20090303549A1 Image processing device, image processing method, and image forming apparatus 有权
标题翻译：图像处理装置，图像处理方法和图像形成装置
公开(公告)号：US20090303549A1
公开(公告)日：2009-12-10
申请号：US12457239
申请日：2009-06-04
申请人： Norio Sakai
发明人： Norio Sakai
IPC分类号： H04N1/41
CPC分类号： H04N1/46 , H04N1/203 , H04N1/2032 , H04N1/32358 , H04N1/32443 , H04N2201/0094
摘要： An image processing device including a first image reading unit to read image data on a front side of a document page, a second image reading unit to read image data on a back side of the document page, a first image processing unit to process the image data read by the first image reading unit, a second image processing unit to process the image data read by the second image reading unit, a memory to store image data, a memory control unit to control access to the memory, and a bus switch that connects the first image processing unit and the second image processing unit to the memory control unit. The bus switch includes a first compression unit to compress the image data processed by the first image processing unit, and a second compression unit to compress the image data processed by the second image processing unit.
摘要翻译：一种图像处理装置，包括：第一图像读取单元，用于读取文档页面的前侧上的图像数据;第二图像读取单元，用于读取文档页面的背面的图像数据;第一图像处理单元，用于处理图像由第一图像读取单元读取的数据，用于处理由第二图像读取单元读取的图像数据的第二图像处理单元，存储图像数据的存储器，控制对存储器的存取的存储器控制单元以及总线开关，将第一图像处理单元和第二图像处理单元连接到存储器控制单元。总线开关包括用于压缩由第一图像处理单元处理的图像数据的第一压缩单元和用于压缩由第二图像处理单元处理的图像数据的第二压缩单元。

56. 发明授权

US07598891B2 Data development device and data development method 失效
标题翻译：数据开发设备和数据开发方法
公开(公告)号：US07598891B2
公开(公告)日：2009-10-06
申请号：US12078749
申请日：2008-04-04
申请人： Akihisa Ono
发明人： Akihisa Ono
IPC分类号： H03M7/30 , G06F12/02 , H04N1/41
CPC分类号： H03M7/3086
摘要： A data development device includes an LZ77 development part expanding data by referring to a dictionary including previous development result when data same to previous data is output, a PNG inverse filter performing arithmetic operation on development result of the LZ77 development part and image data previously output and outputting the image data, and a shared memory including an internal dictionary area and a line data area, the internal dictionary area storing previous development result referred by the LZ77 development part and the line data area storing the image data which is previously output and used by the PNG inverse filter. The shared memory has capacity for the internal dictionary area and capacity for the line data area set based on analysis result analyzing input data.
摘要翻译：数据开发装置包括LZ77开发部分，通过参考包括与先前数据相同的数据的包括先前开发结果的字典来扩展数据; PNG反向滤波器，对LZ77开发部分的开发结果和先前输出的图像数据执行算术运算;以及输出图像数据，以及包括内部字典区域和行数据区域的共享存储器，存储由LZ77开发部分引用的先前显影结果的内部字典区域和存储先前由 PNG逆滤波器。基于分析结果分析输入数据，共享内存具有内部字典区域的容量和线数据区集的容量。

57. 发明授权

US07468803B2 Image processing apparatus and image processing method 失效
标题翻译：图像处理装置和图像处理方法
公开(公告)号：US07468803B2
公开(公告)日：2008-12-23
申请号：US10369729
申请日：2003-02-21
申请人： Takeshi Aoyagi , Yoshinobu Umeda
发明人： Takeshi Aoyagi , Yoshinobu Umeda
IPC分类号： G06F11/07 , H04N1/21 , H04N1/32 , H04N1/41 , H04N1/415
CPC分类号： H04N19/423 , H04N19/124 , H04N19/15 , H04N19/172 , H04N19/46 , H04N19/60 , H04N19/91
摘要： Provided are an image processing apparatus and image processing method capable of processing image data as packet data, and compressing the image data in real time to a data amount within the storage capacity of a memory. Image data in the form of packet data is divided into a plurality of blocks by a block forming circuit (102), and compressed at a first compression ratio by a DCT circuit (104), quantizing circuit (105), and Huffman encoding circuit (106) for each block. A counter (108) measures the data amount of the compressed image data. If the measured data amount is equal to or larger than a predetermined value, the image data stored in a memory (112) is recompressed at a second compression ratio as a higher compression ratio by a Huffman decoding circuit (113), bit shifting circuit (114), and Huffman encoding circuit (115).
摘要翻译：提供了一种图像处理装置和图像处理方法，其能够将图像数据作为分组数据进行处理，并将图像数据实时地压缩到存储器的存储容量内的数据量。分组数据形式的图像数据被块形成电路（102）分成多个块，并通过DCT电路（104），量化电路（105）和霍夫曼编码电路（ 106）。计数器（108）测量压缩图像数据的数据量。如果测量数据量等于或大于预定值，则通过霍夫曼解码电路（113），位移电路（113）将存储在存储器（112）中的图像数据以第二压缩比重新压缩为更高的压缩比， 114）和霍夫曼编码电路（115）。

58. 发明授权

US07450774B2 Method of changing bit rate by changing codeword of compressed image bit stream 失效
标题翻译：通过改变压缩图像比特流的码字来改变比特率的方法
公开(公告)号：US07450774B2
公开(公告)日：2008-11-11
申请号：US10126981
申请日：2002-04-22
申请人： Cheul-hee Hahm , Jae Moon Jo
发明人： Cheul-hee Hahm , Jae Moon Jo
IPC分类号： G06K9/00 , G06K9/36 , G06K9/46 , H04N1/41 , H04N1/413
CPC分类号： H04N5/9264 , H04N19/152 , H04N19/18 , H04N19/40 , H04N19/48 , H04N19/61 , H04N19/91
摘要： An apparatus and a method of changing a bit rate of a compressed image bit stream by changing a codeword so as to easily change the bit rate and reduce a changing loss. The apparatus for changing a bit rate, in which an input bit stream generated by an image compression encoding method is changed into an output bit stream having a desired bit rate, includes a changing codeword determiner which selects codewords to replace the codewords of the input bit stream, and a codeword changer which changes the codewords of the input bit stream into the codewords selected by the changing codeword determiner. The method and the apparatus can be applied to image services provided through the Internet and receiving apparatuses supporting the Personal Video Recorder (PVR) function. Particularly, the method of changing the bit rate of a compressed image bit stream changes the codewords of input transform coefficients so as to easily change the bit rate and reduce the changing loss.
摘要翻译：通过改变码字来改变压缩图像比特流的比特率以便容易地改变比特率并减少变化的损耗的装置和方法。用于改变比特率的装置，其中通过图像压缩编码方法生成的输入比特流被改变为具有期望比特率的输出比特流，包括改变码字确定器，其选择码字来替换输入比特的码字流和码字改变器，其将输入比特流的码字改变为由改变的码字确定器选择的码字。该方法和装置可以应用于通过互联网提供的图像服务和支持个人录像机（PVR）功能的接收装置。特别地，改变压缩图像比特流的比特率的方法改变输入变换系数的码字，以便容易地改变比特率并减少变化的损耗。

59. 发明授权

US07372600B2 Color facsimile device with data recompressing capability 有权
标题翻译：具有数据再压缩功能的彩色传真设备
公开(公告)号：US07372600B2
公开(公告)日：2008-05-13
申请号：US10669726
申请日：2003-09-25
申请人： Yoshiyuki Kondo
发明人： Yoshiyuki Kondo
IPC分类号： H04N1/32 , H04N1/41
CPC分类号： H04N1/00068 , H04N1/33323 , H04N1/41 , H04N2201/0098 , H04N2201/33357
摘要： JPEG data is efficiently recompressed and transmitted to a remote color facsimile device. Before transmission of recompressed JPEG data, an anticipated transmission time is displayed for enabling the user to easily select the desired compression ratio. To generate recompressed JPEG, a Huffman decoder is provided for decoding encoded data and temporarily generates decoded data. Table generator multiplies the predefined quantization table values by the prescribed value to generate the modified quantization table. Intermediate data generator generates the intermediate data by dividing the encoded data by ratio n, which is derived by dividing predefined quantization table by the modified quantization table. Huffman encoder encodes the intermediate data to create new encoded data. Recompressed JPEG data includes the newly coded data and the modified quantization table.
摘要翻译： JPEG数据被有效地再压缩并传输到远程彩色传真设备。在传送再压缩的JPEG数据之前，显示预期的传输时间，以使用户能够容易地选择所需的压缩比。为了产生再压缩JPEG，提供了一个霍夫曼解码器，用于对编码的数据进行解码并临时产生解码的数据。表生成器将预定义的量化表值乘以规定值，以生成修改的量化表。中间数据生成器通过将编码数据除以比率n来产生中间数据，该比率通过将预定义量化表除以修改的量化表而导出。霍夫曼编码器对中间数据进行编码以创建新的编码数据。重新压缩的JPEG数据包括新编码的数据和修改的量化表。

60. 发明授权

US07312902B2 Background data recording and use with document processing 有权
标题翻译：背景数据记录和使用文档处理
公开(公告)号：US07312902B2
公开(公告)日：2007-12-25
申请号：US10428711
申请日：2003-05-02
申请人： Scott D. Mastie , Joan L. Mitchell , Ravi Prakash , Nenad Rijavec
发明人： Scott D. Mastie , Joan L. Mitchell , Ravi Prakash , Nenad Rijavec
IPC分类号： G06K15/02 , G06K9/46 , H04N1/41 , H04N1/38 , B41M3/10
CPC分类号： G06K9/00456 , G06K2209/015
摘要： Systems, methods and program products for recording a document's background data during front-end generation of the document, and inserting a background data identifier on the document. In addition, the invention provides for use of the background data for document processing. For example, the invention provides for removal of the background data from scanner image data of the document to create a foreground image. The foreground image can be used to conduct processing relative to the document such as archiving, fraud detection and other processing. Background data recordation and removal during back-end processing results in improved archive accuracy, lowered storage size requirements, and reduced transmission costs. In addition, background data recordation allows referencing of a single background by a large number of documents.
摘要翻译：用于在文档的前端生成期间记录文档背景数据的系统，方法和程序产品，以及在文档上插入背景数据标识符。此外，本发明提供了用于文档处理的背景数据的使用。例如，本发明提供从文档的扫描仪图像数据中去除背景数据以创建前景图像。前景图像可用于进行相对于文档的处理，例如归档，欺诈检测和其他处理。后端处理期间的后台数据记录和删除导致存档精度提高，存储容量要求降低，传输成本降低。此外，背景数据记录允许通过大量文档引用单个背景。

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