Stopping Functions For Grouping And Differentiating Files Based On Content
    71.
    发明申请
    Stopping Functions For Grouping And Differentiating Files Based On Content 有权
    基于内容分组和区分文件的停止功能

    公开(公告)号:US20110016101A1

    公开(公告)日:2011-01-20

    申请号:US12649688

    申请日:2009-12-30

    IPC分类号: G06F17/00

    摘要: Methods and apparatus teach a digital spectrum of a data file. The digital spectrum is used to map a file's position in multi-dimensional space. This position relative to another file's position reveals closest neighbors. Certain of the closest neighbors are grouped together, while others are differentiated. Grouping ceases upon application of a stopping function so that rightly sized, optimum numbers of file groups are obtained. Embodiments of stopping functions relate to curve types in a mapping of numbers of groups per sequential rounds of grouping, recognizing whether groups have overlapping file members or not, and/or determining whether groups meet predetermined numbers of members, to name a few. Properly grouped files can then be further acted upon.

    摘要翻译: 方法和装置教数据文件的数字频谱。 数字频谱用于在多维空间中映射文件的位置。 相对于另一个文件位置的这个位置显示最近的邻居。 某些最近的邻居被分组在一起,而另一些被区分。 分组在应用停止功能后停止,以便获得正确大小的文件组的最佳数量。 停止功能的实施例涉及在每个连续的分组轮次中识别组是否具有重叠的文件成员的组数目的映射中的曲线类型和/或确定组是否满足预定数量的成员。 然后可以进一步处理妥善分组的文件。

    Variable length coding method and variable length decoding method
    73.
    发明授权
    Variable length coding method and variable length decoding method 有权
    可变长度编码方法和可变长度解码方法

    公开(公告)号:US07714752B2

    公开(公告)日:2010-05-11

    申请号:US11980403

    申请日:2007-10-31

    IPC分类号: H03M7/40

    摘要: An image coding apparatus provides a run-length encoding unit RLE1 that subjects quantized coefficients which are obtained by quantizing frequency components of an image signal to a variable length coding process by using a run value Run that indicates the number of successive zero coefficients and a level value Lev that indicates a value of a non-zero coefficient following the zero coefficients. The run-length encoding unit RLE1 includes a reordering unit Lreodr for reordering level values Lev; a variable length coder LVLC for coding reordered level values ROLev by using a code table that is selected according to the value of a quantization parameter QP; a reordering unit Rreodr for reordering run values Run from high frequency component of the quantized coefficients to low frequency component; and a variable length coder RVLC for coding reordered run values RORun by using a code table that is selected according to the number of already-processed run values.

    摘要翻译: 图像编码装置提供游程长度编码单元RLE1,该游程长度编码单元RLE1对通过使用指示连续零系数的数量的运行值Run和可变长度编码处理的等级来计算通过将图像信号的频率分量量化为可变长度编码处理而获得的量化系数 值Lev,其表示零系数之后的非零系数的值。 游程长度编码单元RLE1包括用于重新排列水平值Lev的重排序单元Lreodr; 可变长度编码器LVLC,用于通过使用根据量化参数QP的值选择的码表来对重新排序的电平值ROLev进行编码; 用于重新排序运行值的重新排序单元Rreodr从量化系数的高频分量运行到低频分量; 以及可变长度编码器RVLC,用于通过使用根据已经处理的运行值的数量选择的代码表来对重排序的运行值RORun进行编码。

    Multi-level representation of reordered transform coefficients
    74.
    发明申请
    Multi-level representation of reordered transform coefficients 有权
    重排序变换系数的多级表示

    公开(公告)号:US20090273706A1

    公开(公告)日:2009-11-05

    申请号:US12151069

    申请日:2008-05-02

    IPC分类号: H04N1/415

    摘要: Techniques and tools for encoding and decoding a block of frequency coefficients are presented. An encoder selects a scan order from multiple available scan orders and then applies the selected scan order to a two-dimensional matrix of transform coefficients, grouping non-zero values of the frequency coefficients together in a one-dimensional string. The encoder entropy encodes the one-dimensional string of coefficient values according to a multi-level nested set representation. In decoding, a decoder entropy decodes the one-dimensional string of coefficient values from the multi-level nested set representation. The decoder selects the scan order from among multiple available scan orders and then reorders the coefficients back into a two-dimensional matrix using the selected scan order.

    摘要翻译: 提出了用于编码和解码频率系数块的技术和工具。 编码器从多个可用扫描顺序中选择扫描顺序,然后将所选择的扫描顺序应用于变换系数的二维矩阵,将频率系数的非零值在一维串中分组。 编码器根据多级嵌套集合表示对一维系列值串进行编码。 在解码中,解码器熵从多级嵌套集合表示解码系数值的一维串。 解码器从多个可用扫描顺序中选择扫描顺序,然后使用所选择的扫描顺序将系数重新排序成二维矩阵。

    Apparatus and method for compressing binarized images
    75.
    发明授权
    Apparatus and method for compressing binarized images 失效
    用于压缩二值化图像的装置和方法

    公开(公告)号:US07602986B1

    公开(公告)日:2009-10-13

    申请号:US08817549

    申请日:1995-10-17

    IPC分类号: G06K9/46

    CPC分类号: G06T9/005 H04N1/417

    摘要: An apparatus and method for compressing binarized images (90) comprising receiving a binarized image (70) and generating a first sequence of first code symbols (80) representing the binarized image wherein at least one row of the image is represented in run-length encoded format and encoding a portion of the first sequence of code symbols using a preliminary encoding scheme, thereby to provide a first portion of a second sequence of code symbols, and, while encoding, accumulating the frequency of at least some of the first code symbols thus far encoded (100) and generating an additional portion of the second sequence using a modified version of the code scheme such that at least one subsequent code symbol in the first sequence with a large accumulated frequency is encoded more compactly in the second portion than at least one subsequent code symbol in the first sequence with a small accumulated frequency.

    摘要翻译: 一种用于压缩二值化图像(90)的装置和方法,包括接收二值化图像(70)并产生表示二进制化图像的第一代码符号(80)的第一序列,其中以游程长度编码表示图像的至少一行 使用初步编码方案对第一编码符号序列的一部分进行格式化和编码,由此提供第二编码符号序列的第一部分,并且在编码时累积至少一些第一代码符号的频率 远程编码(100)并且使用代码方案的修改版本生成第二序列的附加部分,使得在第二部分中具有较大累积频率的第一序列中的至少一个后续代码符号比至少编码 第一序列中的一个随后的码符号具有小的累积频率。

    Systems and methods using parameter selection in data compression and decompression
    76.
    发明授权
    Systems and methods using parameter selection in data compression and decompression 有权
    在数据压缩和解压缩中使用参数选择的系统和方法

    公开(公告)号:US07593582B2

    公开(公告)日:2009-09-22

    申请号:US11752234

    申请日:2007-05-22

    IPC分类号: G06K9/36

    摘要: Apparatus, systems and methods for using the selection of an appropriate parameter at decompression are disclosed. In particular, when adaptive block size discrete cosine transform compression is used to compress data, different combinations of sub-blocks can be generated. To decompress the different combinations of sub-blocks, the appropriate parameter is selected based on block size assignment information and the address of data in the data block.

    摘要翻译: 公开了用于在解压缩时选择适当参数的装置,系统和方法。 特别地,当使用自适应块大小的离散余弦变换压缩来压缩数据时,可以生成子块的不同组合。 为了解压缩子块的不同组合,根据块大小分配信息和数据块中的数据地址来选择适当的参数。

    Apparatus and method for multiple description encoding
    77.
    发明授权
    Apparatus and method for multiple description encoding 失效
    多种描述编码的装置和方法

    公开(公告)号:US07561073B2

    公开(公告)日:2009-07-14

    申请号:US11412568

    申请日:2006-04-26

    IPC分类号: H03M7/00

    摘要: An apparatus and method for generating multiple descriptions of compressed data are comprised. Generally, a quantized bit stream is generated using a reference quantization step. The quantization bet stream is then re-quantized using a first quantization step to generate a first description of compressed data, wherein the first quantization step is determined based on a first required scaling of the reference quantization step. The quantized bit stream may also be re-quantized using a second quantization step to generate a second description of compressed data, wherein the second quantization step is determined on a second required scaling of the reference quantization step.

    摘要翻译: 包括用于产生压缩数据的多个描述的装置和方法。 通常,使用参考量化步长产生量化比特流。 然后使用第一量化步骤重新量化量化投注流,以产生压缩数据的第一描述,其中基于参考量化步长的第一所需缩放来确定第一量化步长。 量化比特流也可以使用第二量化步骤重新量化,以产生压缩数据的第二描述,其中,在参考量化步骤的第二所需缩放上确定第二量化步长。

    Using order value for computing motion vector
    78.
    发明授权
    Using order value for computing motion vector 有权
    使用顺序值计算运动矢量

    公开(公告)号:US07548584B2

    公开(公告)日:2009-06-16

    申请号:US11835773

    申请日:2007-08-08

    IPC分类号: H04B1/66

    摘要: A method and apparatus for variable accuracy inter-picture timing specification for digital video encoding is disclosed. Specifically, the present invention discloses a system that allows the relative timing of nearby video pictures to be encoded in a very efficient manner. In one embodiment, the display time difference between a current video picture and a nearby video picture is determined. The display time difference is then encoded into a digital representation of the video picture. In a preferred embodiment, the nearby video picture is the most recently transmitted stored picture. For coding efficiency, the display time difference may be encoded using a variable length coding system or arithmetic coding. In an alternate embodiment, the display time difference is encoded as a power of two to reduce the number of bits transmitted.

    摘要翻译: 公开了一种用于数字视频编码的可变精度画面间时序规范的方法和装置。 具体地说,本发明公开了一种允许以非常有效的方式编码附近视频图像的相对定时的系统。 在一个实施例中,确定当前视频图像和附近视频图像之间的显示时间差。 然后将显示时间差编码为视频图像的数字表示。 在优选实施例中,附近的视频图像是最近发送的存储图像。 对于编码效率,可以使用可变长度编码系统或算术编码对显示时间差进行编码。 在替代实施例中,显示时间差被编码为2的幂,以减少发送的比特数。

    System and article of manufacture for using a reentry data stet to decode compressed data
    79.
    发明申请
    System and article of manufacture for using a reentry data stet to decode compressed data 审中-公开
    使用再入数据管理系统和制造商解码压缩数据

    公开(公告)号:US20090141991A1

    公开(公告)日:2009-06-04

    申请号:US12349471

    申请日:2009-01-06

    IPC分类号: G06T9/00 G06K9/00

    摘要: Provided are a method, system, and program for decoding compressed data. Compressed data is received and decoded. An error is detected while decoding a first location in the compressed data. A reentry data set is accessed having a pointer to a second location in the compressed data following the first location and decoding information that enables decoding to start from the second location. The second location in the compressed data is accessed and the decoding information in the accessed reentry data set is used to continue decoding the compressed data from the second location.

    摘要翻译: 提供了用于解码压缩数据的方法,系统和程序。 压缩数据被接收和解码。 在对压缩数据中的第一位置进行解码时检测到错误。 访问具有指向第一位置之后的压缩数据中的第二位置的指针的再入数据集,以及使解码从第二位置开始的解码信息。 访问压缩数据中的第二位置,并且使用访问的重入数据集中的解码信息来继续解码来自第二位置的压缩数据。

    Texture Compression Based on Two Hues with Modified Brightness
    80.
    发明申请
    Texture Compression Based on Two Hues with Modified Brightness 有权
    基于改进亮度的两个色调的纹理压缩

    公开(公告)号:US20090003692A1

    公开(公告)日:2009-01-01

    申请号:US12064207

    申请日:2006-07-14

    IPC分类号: G06K9/36

    CPC分类号: G06T9/008 G06T9/005

    摘要: In an image-encoding scheme, an input image is decomposed into image blocks comprising multiple image elements. The image blocks are then encoded into encoded blocks. An encoded block comprises a first color codeword, a second color codeword, a color modifier codeword and a color index sequence. The color codewords are representations of a first and second base color located on a first line in color space. The modifier codeword is a representation of at least one color modifier for modifying the first base color along a second line to obtain multiple color representations along the line. The second line has a different direction as compared to the first line. The index sequence comprises color indices associated with a color representation selected form i) the representations on the second line and ii) at least one representation based on the second base color.

    摘要翻译: 在图像编码方案中,输入图像被分解成包括多个图像元素的图像块。 然后将图像块编码为编码块。 编码块包括第一颜色码字,第二颜色码字,颜色修饰符码字和颜色索引序列。 颜色代码字是位于颜色空间中的第一行上的第一和第二基色的表示。 修饰符码字是至少一个颜色修饰符的表示,用于沿着第二条线修改第一基色以沿着该线获得多个颜色表示。 第二行与第一行的方向不同。 索引序列包括与从i)第二行上的表示相关联的颜色表示的颜色索引,以及ii)基于第二基本颜色的至少一个表示。