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    System and method for decoding digital image data and voice data without loss
    3.
    发明专利
    System and method for decoding digital image data and voice data without loss 审中-公开
    用于解码数字图像数据和语音数据的系统和方法，没有损失

    公开(公告)号：JP2009055623A

    公开(公告)日：2009-03-12

    申请号：JP2008256186

    申请日：2008-10-01

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： IRVINE ANN C ,  THYAGARAJAN KADAYAM

    IPC: H04N7/30 ,  H04N7/32 ,  H03M7/30 ,  H04N1/41 ,  H04N7/26 ,  H04N7/50

    CPC classification number: H04N19/174 ,  H04N19/119 ,  H04N19/124 ,  H04N19/13 ,  H04N19/14 ,  H04N19/18 ,  H04N19/30 ,  H04N19/593 ,  H04N19/60 ,  H04N19/61 ,  H04N19/91 ,  H04N19/96

    Abstract: PROBLEM TO BE SOLVED: To provide a system and method for decoding digital image data and voice data without loss. SOLUTION: The method for lossless decoding of signals representing an image is required, and the method is presented as follows. A lossy compression data file and a residual compression data file are received. The lossy compression data file is separated into a DC coefficient and AC coefficient and the DC coefficient and the AC coefficients are decoded individually to determine the DC value and AC values (130). The DC value and AC values are inverse-quantized to generate lossy decompression data (146). Lossy decompression frequency data is combined with residual decompression data to generate a lossless data file wherein the lossless data file is substantially the same as an original image. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种无损耗地解码数字图像数据和语音数据的系统和方法。 解决方案：需要对表示图像的信号进行无损解码的方法，并且该方法如下所示。 接收有损压缩数据文件和残留压缩数据文件。 有损压缩数据文件被分成DC系数和AC系数，并且DC系数和AC系数被单独解码以确定DC值和AC值（130）。 DC值和AC值被逆量化以产生有损解压缩数据（146）。 有损解压缩频率数据与剩余解压缩数据组合以产生无损数据文件，其中无损数据文件与原始图像基本相同。 版权所有（C）2009，JPO＆INPIT

    System and method for decoding digital image and audio data in lossless manner
    4.
    发明专利
    System and method for decoding digital image and audio data in lossless manner 审中-公开
    用于解码无线网络中数字图像和音频数据的系统和方法

    公开(公告)号：JP2012200005A

    公开(公告)日：2012-10-18

    申请号：JP2012139599

    申请日：2012-06-21

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： IRVINE ANN C ,  THYAGARAJAN KADAYAM

    IPC: H04N7/30 ,  H03M7/30 ,  H04N1/41 ,  H04N7/26 ,  H04N7/50

    CPC classification number: H04N19/174 ,  H04N19/119 ,  H04N19/124 ,  H04N19/13 ,  H04N19/14 ,  H04N19/18 ,  H04N19/30 ,  H04N19/593 ,  H04N19/60 ,  H04N19/61 ,  H04N19/91 ,  H04N19/96

    Abstract: PROBLEM TO BE SOLVED: To provide a system and method for decoding digital image and audio data in a lossless manner.SOLUTION: A method of losslessly decoding signals representing an image is claimed. A lossy compressed data file and a residual compressed data file are received. The lossy compressed data file is separated into DC coefficients and AC coefficients, and decoded, separately, to determine DC values and the AC values (130). The DC values and the AC values are inverse quantized to produce lossy decompressed data (146). The lossy decompressed frequency data is combined with the residual decompressed data to produce a lossless data file, where the lossless data file is substantially the same as the original image.

    Abstract translation: 要解决的问题：提供一种以无损耗方式解码数字图像和音频数据的系统和方法。 声明了一种无损地解码表示图像的信号的方法。 收到有损压缩数据文件和残留压缩数据文件。 将有损压缩数据文件分成DC系数和AC系数，分别解码以确定DC值和AC值（130）。 DC值和AC值被反量化以产生有损解的解压缩数据（146）。 有损解压缩频率数据与剩余解压缩数据组合以产生无损数据文件，其中无损数据文件与原始图像基本相同。 版权所有（C）2013，JPO＆INPIT

    6.
    发明专利
    未知

    公开(公告)号：AT538598T

    公开(公告)日：2012-01-15

    申请号：AT00977131

    申请日：2000-11-08

    Applicant: QUALCOMM INC

    Inventor： THYAGARAJAN KADAYAM ,  MERRITT MICHAEL

    IPC: H04N19/176 ,  G06T9/00 ,  H03M7/30 ,  H03M7/40 ,  H04N19/122

    Abstract: A system and method for image compression utilizing adaptively sized blocks and sub-blocks of discrete cosine transform coefficient data is presented. A block size assignment element in the encoder selects the block or sub-block of an input block of pixels to be processed. The selection is based on the variance of pixel values. Blocks with variances larger than a threshold are subdivided, while blocks with variances smaller than a threshold are not subdivided. A transform element transforms the pixel values of the selected blocks into the frequency domain. The frequency domain values may then be quantized, serialized, and variable length coded in preparation for transmission.

    Lossless intraframe encoding using golomb-rice
    7.
    发明专利
    Lossless intraframe encoding using golomb-rice 未知

    公开(公告)号：AU2008203295A1

    公开(公告)日：2008-08-14

    申请号：AU2008203295

    申请日：2008-07-24

    Applicant: QUALCOMM INC

    Inventor： THYAGARAJAN KADAYAM

    IPC: G06T9/00 ,  G10L19/00 ,  H03M7/30 ,  H04N19/119 ,  H04N19/124

    Abstract: An apparatus and method of intraframe encoding of digital frequency-domain data. The data comprises a plurality of slices each having a plurality of blocks. Each block has a DC component and a plurality of AC components. A first DC component value of each slice is encoded. Each subsequent DC component value of each slice is represented as the difference between it and the DC component value preceeding it. For lossless encoding, the initial DC component value of each slice and the differences are encoding using Golomb-Rice.

    Lossless intraframe encoding using golomb-rice
    8.
    发明专利
    Lossless intraframe encoding using golomb-rice 未知

    公开(公告)号：AU2002316546B2

    公开(公告)日：2008-04-24

    申请号：AU2002316546

    申请日：2002-07-02

    Applicant: QUALCOMM INC

    Inventor： THYAGARAJAN KADAYAM

    IPC: G06T9/00 ,  G10L19/00 ,  H03M7/30 ,  H04N19/119 ,  H04N19/124

    Abstract: An apparatus and method of intraframe encoding of digital frequency-domain data. The data comprises a plurality of slices each having a plurality of blocks. Each block has a DC component and a plurality of AC components. A first DC component value of each slice is encoded. Each subsequent DC component value of each slice is represented as the difference between it and the DC component value preceeding it. For lossless encoding, the initial DC component value of each slice and the differences are encoding using Golomb-Rice.

    Variance based adaptive block size DCT image compression
    9.
    发明专利
    Variance based adaptive block size DCT image compression 未知

    公开(公告)号：AU782176B2

    公开(公告)日：2005-07-07

    申请号：AU1481101

    申请日：2000-11-08

    Applicant: QUALCOMM INC

    Inventor： THYAGARAJAN KADAYAM ,  MERRITT MICHAEL J

    IPC: H04N19/176 ,  G06T9/00 ,  H03M7/30 ,  H03M7/40 ,  H04N19/122 ,  H04N7/26

    Abstract: A system and method for image compression utilizing adaptively sized blocks and sub-blocks of discrete cosine transform coefficient data is presented. A block size assignment element in the encoder selects the block or sub-block of an input block of pixels to be processed. The selection is based on the variance of pixel values. Blocks with variances larger than a threshold are subdivided, while blocks with variances smaller than a threshold are not subdivided. A transform element transforms the pixel values of the selected blocks into the frequency domain. The frequency domain values may then be quantized, serialized, and variable length coded in preparation for transmission.

    LOSSLESS INTRAFRAME ENCODING USING GOLOMB-RICE
    10.
    发明专利
    LOSSLESS INTRAFRAME ENCODING USING GOLOMB-RICE 未知

    公开(公告)号：CA2452649A1

    公开(公告)日：2003-01-16

    申请号：CA2452649

    申请日：2002-07-02

    Applicant: QUALCOMM INC

    Inventor： THYAGARAJAN KADAYAM

    IPC: G06T9/00 ,  G10L19/00 ,  H03M7/30 ,  H04N19/119 ,  H04N19/124 ,  G06K9/36

    Abstract: An apparatus and method of intraframe encoding of digital frequency-domain data. The data comprises a plurality of slices each having a plurality of blocks (120). Each block has a DC component and a plurality of AC components (130). A first DC component value of each slice is encoded. Each subsequent DC component value of each slice is represented as the difference between it an d the DC component value proceeding it. For lossless encoding, the initial DC component value of each slice and the differences are encoding using Golomb- Rice (138).

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