公开(公告)号：US08265401B2

公开(公告)日：2012-09-11

申请号：US12822834

申请日：2010-06-24

Applicant: Hideyoshi Yoshimura

Inventor： Hideyoshi Yoshimura

IPC: G06K9/36 ,  G06K9/38

CPC classification number: H04N1/413 ,  H04N1/00278 ,  H04N19/103 ,  H04N19/12 ,  H04N19/136 ,  H04N19/17 ,  H04N19/186

Abstract: When compressing continuous tone bit map image data, the image compression section of the image compressing apparatus segments the continuous tone bit map image data into bit map image data for lossy compression, index image data for lossless compression and bit map image data for lossless compression based on pixel identification information data. The lossy compression section of the image compression section performs lossy compression process according to the JPEG method for the bit map image data for lossy compression, and the first lossless compression section thereof performs lossless compression process according to the JBIG method for the index image data for lossless compression. Furthermore, the second lossless compression section thereof performs lossless compression process according to the JPEG-LS method for the bit map image data for lossless compression.

Abstract translation: 当压缩连续色调位图图像数据时，图像压缩装置的图像压缩部分将连续色调位图图像数据分割成用于有损压缩的位图图像数据，用于无损压缩的索引图像数据和用于无损压缩的位图图像数据 关于像素识别信息数据。 图像压缩部的有损压缩部根据用于有损压缩的位图图像数据的JPEG方式进行有损压缩处理，其第一无损压缩部根据JBIG方法对索引图像数据进行无损压缩处理 无损压缩。 此外，第二无损压缩部分根据用于无损压缩的位图图像数据的JPEG-LS方法进行无损压缩处理。

公开(公告)号：US20100329548A1

公开(公告)日：2010-12-30

申请号：US12822834

申请日：2010-06-24

Applicant: Hideyoshi YOSHIMURA

Inventor： Hideyoshi YOSHIMURA

IPC: G06K9/34 ,  G06K9/36

CPC classification number: H04N1/413 ,  H04N1/00278 ,  H04N19/103 ,  H04N19/12 ,  H04N19/136 ,  H04N19/17 ,  H04N19/186

Abstract: When compressing continuous tone bit map image data, the image compression section of the image compressing apparatus segments the continuous tone bit map image data into bit map image data for lossy compression, index image data for lossless compression and bit map image data for lossless compression based on pixel identification information data. The lossy compression section of the image compression section performs lossy compression process according to the JPEG method for the bit map image data for lossy compression, and the first lossless compression section thereof performs lossless compression process according to the JBIG method for the index image data for lossless compression. Furthermore, the second lossless compression section thereof performs lossless compression process according to the JPEG-LS method for the bit map image data for lossless compression.

Abstract translation: 当压缩连续色调位图图像数据时，图像压缩装置的图像压缩部分将连续色调位图图像数据分割成用于有损压缩的位图图像数据，用于无损压缩的索引图像数据和用于无损压缩的位图图像数据 关于像素识别信息数据。 图像压缩部的有损压缩部根据用于有损压缩的位图图像数据的JPEG方式进行有损压缩处理，其第一无损压缩部根据JBIG方法对索引图像数据进行无损压缩处理 无损压缩。 此外，第二无损压缩部分根据用于无损压缩的位图图像数据的JPEG-LS方法进行无损压缩处理。

公开(公告)号：US20090263031A1

公开(公告)日：2009-10-22

申请号：US12426557

申请日：2009-04-20

Applicant: Daisuke Usui ,  Hideyoshi Yoshimura

Inventor： Daisuke Usui ,  Hideyoshi Yoshimura

IPC: G06K9/36 ,  G06F13/372

CPC classification number: H04N1/413 ,  G06Q50/22 ,  H04N1/32358 ,  H04N1/32459 ,  H04N1/64

Abstract: When inputted pixels from an input DMA unit, a packing unit outputs data package. One data package consists of a inputted pixels. A memory control unit writes, on a write line memory at a write interval, the data package that is outputted by the packing unit. The write interval is a times longer than an input interval at which the pixels are inputted into the packing unit. During the writing process, the memory control unit reads out another data package from a read line memory at a read interval that is the same as the input interval. In addition, the memory control unit treats the write line memory as the read line memory, after completing the writing process. Alternatively, the memory control unit treats the read line memory as the write line memory, after completing the reading process.

Abstract translation: 当从输入DMA单元输入的像素时，打包单元输出数据包。 一个数据包由输入的像素组成。 存储器控制单元以写入间隔在写入行存储器上写入由打包单元输出的数据包。 写入间隔比将像素输入到打包单元的输入间隔多一倍。 在写入处理期间，存储器控制单元以与输入间隔相同的读取间隔从读取行存储器中读出另一数据包。 此外，在完成写入处理之后，存储器控制单元将写入行存储器视为读取行存储器。 或者，在完成读取处理之后，存储器控制单元将读取行存储器视为写入行存储器。

公开(公告)号：US20090129684A1

公开(公告)日：2009-05-21

申请号：US12057902

申请日：2008-03-28

Applicant: Seung Soo LEE ,  Seong Jun SHIN ,  Tae Uk YANG ,  Jang Hong YOON

Inventor： Seung Soo LEE ,  Seong Jun SHIN ,  Tae Uk YANG ,  Jang Hong YOON

IPC: G06K9/36

CPC classification number: H04N1/413 ,  H04N19/12 ,  H04N19/136 ,  H04N19/172

Abstract: Provided is a method and apparatus for compressing a text and an image. When compressing the text and image, it is possible to group valid lines with data into each line having a common element, and compress and encode the data of the valid lines. Accordingly, it is possible to reduce a data loss that may occur in a tactical communication environment with a poor channel state due to a bit sleep or a burst error. In the case of the text, it is possible to perform lossless compression on only a valid line with data and thereby improve compression efficiency. In the case of the image, it is possible to perform loss compression on valid lines, and then restore the partially damaged data using an ECC even when data is partially damaged. Accordingly, it is possible to improve compression efficiency and the entire data transmission success rate.

Abstract translation: 提供了一种用于压缩文本和图像的方法和装置。 当压缩文本和图像时，可以将有效行与数据分组到具有公共元素的每行中，并且对有效行的数据进行压缩和编码。 因此，可以减少由于位休眠或突发错误而导致的通道状态差的战术通信环境中可能发生的数据丢失。 在文本的情况下，可以仅在具有数据的有效行上执行无损压缩，从而提高压缩效率。 在图像的情况下，可以对有效行执行丢失压缩，然后即使数据被部分损坏，也可以使用ECC恢复部分损坏的数据。 因此，可以提高压缩效率和整个数据传输成功率。

公开(公告)号：US07085020B2

公开(公告)日：2006-08-01

申请号：US10079671

申请日：2002-02-20

Applicant: Jennifer Q. Trelewicz

Inventor： Jennifer Q. Trelewicz

IPC: H04N1/413

CPC classification number: H04N1/4105 ,  G06K15/1814 ,  H04N1/413 ,  H04N19/94

Abstract: A plurality of patterns such as half-tone patterns, solid patterns, edge patterns, and verbatim data are losslessly represented in a compressed raster data stream. A pattern selection module selects among the various patterns to provide the best combination of lossless representations according to particular criteria such as storage compactness. Half-tone patterns are compressed by exploiting the characteristics of the half-tone threshold screen used to generate the half-tone image. A half-tone pattern codebook is produced by half-tone screening a calibration image. A packet formatting module packs multiple pattern identifiers and lossless representations into a packet which may be transmitted compactly. Upon receipt, a packet deformatting module unpacks the pattern identifiers and lossless representations from the packet. After deformatting, a pattern decoding module uses the pattern identifier to activate appropriate pattern generation modules. Each pattern generation module regenerates data according to an indicated pattern to recreate the original raster data.

公开(公告)号：US07031531B1

公开(公告)日：2006-04-18

申请号：US10049513

申请日：2000-08-14

Applicant: Hisashi Saiga ,  Keisuke Iwasaki ,  Kensaku Kagechi

Inventor： Hisashi Saiga ,  Keisuke Iwasaki ,  Kensaku Kagechi

IPC: G06K9/00

CPC classification number: H04N1/413

Abstract: An image coding apparatus corresponding to a standard scheme of binary image compression and having the compression efficiency of a gray scale image improved includes: a bit plane generator (303) dividing unitary image data into a plurality of bit planes determined according to the number of bits forming each pixel, an image preprocessor (305) connected to the bit plane generator (303) to arrange bit data of the same position forming a plurality of bit planes in close proximity to combine into a single bit plane, and a data compressor (306) connected to the image preprocessor (305) to compress an image of the single bit plane.

Abstract translation: 对应于具有改进的灰度图像的压缩效率的二进制图像压缩的标准方案的图像编码装置包括：位平面生成器（303），将单位图像数据划分为根据位数确定的多个比特平面 形成每个像素，连接到位平面生成器（303）的图像预处理器（305），以将形成紧邻的多个位平面的相同位置的位数据组合成单个位平面;以及数据压缩器（306 ）连接到图像预处理器（305）以压缩单个位平面的图像。

公开(公告)号：US20030090702A1

公开(公告)日：2003-05-15

申请号：US09993188

申请日：2001-11-14

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Jennifer Q. Trelewicz

IPC: B41J001/00 ,  G06F015/00 ,  H04N001/41

CPC classification number: H04N1/413 ,  G06K15/1814 ,  H04N1/4105 ,  H04N19/94

Abstract: A plurality of patterns such as solid patterns, edge patterns, half-tone patterns, and verbatim data are losslessly represented in a compressed raster data stream. A pattern selection module selects among the various patterns to provide the best combination of lossless representations according to particular criteria such as storage compactness. A packet formatting module packs multiple pattern identifiers and lossless representations into a packet which may be transmitted compactly. Upon receipt, a packet deformatting module unpacks the pattern identifiers and lossless representations from the packet. After deformatting, a pattern decoding module uses the pattern identifier to activate appropriate pattern generation modules. Each pattern generation module regenerates data according to an indicated pattern to recreate the original raster data.

Abstract translation: 诸如实心图案，边缘图案，半色调图案和逐字数据的多个图案在压缩光栅数据流中无损地表示。 模式选择模块根据诸如存储紧凑性的特定标准在各种模式之中选择提供无损表示的最佳组合。 分组格式化模块将多个模式标识符和无损表示包装到可以紧凑传输的分组中。 一旦接收到，分组去格式化模块从分组中解包出模式标识符和无损表示。 解格之后，模式解码模块使用模式标识符来激活适当的模式生成模块。 每个图案生成模块根据指示的图案再生数据以重新创建原始的光栅数据。

公开(公告)号：US5517327A

公开(公告)日：1996-05-14

申请号：US267711

申请日：1994-06-28

Applicant: Munehiro Nakatani ,  Hiroyuki Suzuki ,  Kazuomi Sakatani

Inventor： Munehiro Nakatani ,  Hiroyuki Suzuki ,  Kazuomi Sakatani

IPC: G06T9/00 ,  H04N1/40 ,  H04N1/41 ,  H04N1/413 ,  H04N7/26 ,  H04N7/30

CPC classification number: H04N1/41 ,  H04N1/40062 ,  H04N1/413 ,  H04N19/126 ,  H04N19/14 ,  H04N19/17 ,  H04N19/176 ,  H04N19/42 ,  H04N19/48 ,  H04N19/60 ,  H04N19/124 ,  H04N19/132 ,  H04N19/146 ,  H04N19/149 ,  H04N19/15 ,  H04N19/30

Abstract: In a data processor, image data of a pixel matrix is subjected to orthogonal transformation to coefficient data, the coefficient data is quantized with a first quantization table for character image and a second quantization table for half-tone image, and the image data is discriminated to be character image data or half-tone image data according to the quantization data. The selected data is then coded. In another processor, image data are divided into first and second processing blocks of m*m and M*M pixel matrices wherein M>m and the second processing block includes one of first processing blocks and adjacent pixels. Image data in a first and second processing block are subjected to orthogonal transformation to coefficient data. It is discriminated according to the coefficient data of the second processing block if the image is a character, dot, or half-tone image to select an appropriate quantization table, and image data of the first block is quantized according to the selected table and the quantized data are coded. In a further processor, two discrimination windows are provided, the first having coefficient data around the DC component and the second having the other data. Orthogonal transform coefficients of image data in a processing block are calculated, and maximum of absolute values in the windows are obtained. An image is discriminated to be a dot image if the maximum of the first window is larger than the second and larger than a threshold value.

Abstract translation: 在数据处理器中，将像素矩阵的图像数据进行到系数数据的正交变换，用用于字符图像的第一量化表和半色调图像的第二量化表量化系数数据，并且识别图像数据 根据量化数据作为字符图像数据或半色调图像数据。 然后对所选择的数据进行编码。 在另一个处理器中，图像数据被划分成m * m和M * M个像素矩阵的第一和第二处理块，其中M> m，第二处理块包括第一处理块和相邻像素之一。 对第一和​​第二处理块中的图像数据进行正交变换到系数数据。 如果图像是用于选择适当的量化表的字符，点或半色调图像，则根据第二处理块的系数数据进行区分，并且根据所选择的表格对第一块的图像数据进行量化， 量化数据被编码。 在另一个处理器中，提供两个识别窗口，第一个具有围绕DC分量的系数数据，而第二个具有其他数据。 计算处理块中的图像数据的正交变换系数，并获得窗口中绝对值的最大值。 如果第一窗口的最大值大于第二窗口并且大于阈值，则将图像区分为点图像。

公开(公告)号：US5335299A

公开(公告)日：1994-08-02

申请号：US694660

申请日：1991-05-02

Applicant: William Atkinson

Inventor： William Atkinson

IPC: H03M7/30 ,  H04N1/413 ,  G06K9/36

CPC classification number: H04N1/413 ,  H03M7/30

Abstract: A method for encoding compressed graphics video information and decoding such information. The method consists of enriching the video information in zeros through shifting and Exclusive ORing video image with itself. A number of methods are attempted in the shifting and Exclusive ORing process in order to determine the method which yields the optimum zero enriched image. The zero enriched image is then encoded and the encoded information stored. Upon retrieval, the information is decoded and an Exclusive OR and shifting process is done to obtain the original video information.

Abstract translation: 一种编码压缩图形视频信息和解码这种信息的方法。 该方法包括通过移位和独占异或视频图像来自动丰富视频信息。 在移位和异或运算过程中尝试了许多方法，以确定产生最佳零富集图像的方法。 然后对零富集图像进行编码并存储编码信息。 在检索时，信息被解码，并进行异或移位处理以获得原始视频信息。

公开(公告)号：US5212564A

公开(公告)日：1993-05-18

申请号：US613016

申请日：1990-11-15

Applicant: Kenji Yaso ,  Masaya Yamamoto

Inventor： Kenji Yaso ,  Masaya Yamamoto

IPC: H04N1/21 ,  H04N1/41 ,  H04N1/413

CPC classification number: H04N1/413

Abstract: A system for recording received picture data for facsimile transmission includes a compressor for encoding decoded received picture data per line as a unit and compressing the encoded picture data to produce compressed data. A decision unit is connected to the compressor to decide whether the number of bits of the compressed picture data or the number of bits of the restored picture data is smaller to produce a control signal representing the decision result. A buffer storage unit is operatively connected to the compressor for storing the picture data having a smaller number of bits decided by the the decision unit. The system also includes an output decoder connected to the buffer unit for delivering a decoded original picture data in the buffer storage when the data from the buffer storage is compressed data and delivering the data from the buffer storage unit when the data from the buffer storage unit is original picture data.

Abstract translation: 用于记录用于传真传输的接收图像数据的系统包括用于将每行解码的接收图像数据作为单位进行编码的压缩器，并压缩编码图像数据以产生压缩数据。 决定单元连接到压缩器，以决定压缩图像数据的位数还是恢复图像数据的位数是否较小，以产生表示判定结果的控制信号。 缓冲存储单元可操作地连接到压缩器，用于存储具有由决定单元决定的较少数量的位的图像数据。 该系统还包括连接到缓冲器单元的输出解码器，用于当来自缓冲存储器的数据是压缩数据并且当来自缓冲存储单元的数据从缓冲存储单元传送数据时，将解码的原始图像数据传送到缓冲存储器 是原始图片资料。