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

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

公开(公告)号：JP2010263657A

公开(公告)日：2010-11-18

申请号：JP2010166249

申请日：2010-07-23

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 ,  RAVEENDRAN VIJAYALAKSHMI R

IPC: H04N7/30 ,  G06T9/00 ,  H04N7/12 ,  H04N7/26

CPC classification number: G06T9/005 ,  H04N19/122 ,  H04N19/124 ,  H04N19/129 ,  H04N19/15 ,  H04N19/176 ,  H04N19/18 ,  H04N19/187 ,  H04N19/39 ,  H04N19/40 ,  H04N19/60 ,  H04N19/63

Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and method for performing multiple description encoding of compressed data. SOLUTION: An apparatus and method for generating multiple descriptions of compressed data are disclosed. Generally, a quantized bit stream is generated using a reference quantization step. The quantized bit 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 based on a second required scaling of the reference quantization step. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于执行压缩数据的多重编码的装置和方法。 公开了一种用于生成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对量化比特流进行重新量化，以产生压缩数据的第一描述，其中基于参考量化步骤的第一所需缩放来确定第一量化步长。 也可以使用第二量化步骤对量化比特流进行重新量化，以生成压缩数据的第二描述，其中基于参考量化步骤的第二所需缩放来确定第二量化步长。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：CA2506102C

公开(公告)日：2013-07-23

申请号：CA2506102

申请日：2003-11-17

Applicant: QUALCOMM INC

Inventor： IRVINE ANN C ,  RAVEENDRAN VIJAYALAKSHMI R

IPC: H04N7/30 ,  G06T9/00 ,  H03M7/30 ,  H04N5/917 ,  H04N7/12 ,  H04N7/26

Abstract: Apparatus and method for generating multiple descriptions of compressed data is disclosed. In the apparatus and method, transform coefficients are generated from input data and quantized. An energy distribution of the quantized transform coefficients is generated. Based on the energy distribution, the transform coefficients are grouped into layers. By entropy coding different number of layers, multiple descriptions of compressed data are generated.

公开(公告)号：AU2003291058C1

公开(公告)日：2010-10-28

申请号：AU2003291058

申请日：2003-11-17

Applicant: QUALCOMM INC

Inventor： RAVEENDRAN VIJAYALAKSHMI R ,  IRVINE ANN C

IPC: G06T9/00 ,  H04N7/12 ,  H04N7/26 ,  H04N7/30

Abstract: Apparatus and method for generating multiple descriptions of compressed data is disclosed. In the apparatus and method, transform coefficients are generated from input data and quantized. An energy distribution of the quantized transform coefficients is generated. Based on the energy distribution, the transform coefficients are grouped into layers. By entropy coding different number of layers, multiple descriptions of compressed data are generated.

公开(公告)号：AT428997T

公开(公告)日：2009-05-15

申请号：AT08075216

申请日：2003-11-17

Applicant: QUALCOMM INC

Inventor： IRVINE ANN C ,  RAVEENDRAN VIJAYALAKSHMI R

IPC: G06T9/00 ,  H04N7/12 ,  H04N7/26 ,  H04N7/30

Abstract: Apparatus and method for generating multiple descriptions of compressed data is disclosed. In the apparatus and method, transform coefficients are generated from input data and quantized. An energy distribution of the quantized transform coefficients is generated. Based on the energy distribution, the transform coefficients are grouped into layers. By entropy coding different number of layers, multiple descriptions of compressed data are generated.

公开(公告)号：AU2003291057B2

公开(公告)日：2009-04-23

申请号：AU2003291057

申请日：2003-11-17

Applicant: QUALCOMM INC

Inventor： IRVINE ANN C ,  RAVEENDRAN VIJAYALAKSHMI R

IPC: G06T9/00 ,  H04N7/12 ,  H04N7/26 ,  H04N7/30

Abstract: Apparatus and method for generating multiple descriptions of compressed data is disclosed. In the apparatus and method, transform coefficients are generated from input data and quantized. An energy distribution of the quantized transform coefficients is generated. Based on the energy distribution, the transform coefficients are grouped into layers. By entropy coding different number of layers, multiple descriptions of compressed data are generated.

公开(公告)号：CA2519451A1

公开(公告)日：2004-09-30

申请号：CA2519451

申请日：2004-03-17

Applicant: QUALCOMM INC

Inventor： IRVINE ANN C ,  RAVEENDRAN VIJAYALAKSHMI R

IPC: G06T5/00 ,  H04N7/26 ,  G06K9/40

Abstract: Embodiments describe a method, apparatus and system for processing images using block based compression. In one embodiment, a method comprises determining whether two blocks are neighboring blocks, determining whether t he two neighboring blocks are both subdivided, if the two blocks are neighborin g blocks; performing deblocking filtering on one or more edge pixels of the tw o neighboring blocks, if it is determined that both of the two neighboring blocks are not subdivided.

公开(公告)号：DE60322433D1

公开(公告)日：2008-09-04

申请号：DE60322433

申请日：2003-11-17

Applicant: QUALCOMM INC

Inventor： IRVINE ANN C ,  RAVEENDRAN VIJAYALAKSHMI R

IPC: H03M1/10 ,  G06T9/00 ,  H04N7/12 ,  H04N7/26 ,  H04N7/30

Abstract: Apparatus and method for generating multiple descriptions of compressed data is disclosed. In the apparatus and method, transform coefficients are generated from input data and quantized. An energy distribution of the quantized transform coefficients is generated. Based on the energy distribution, the transform coefficients are grouped into layers. By entropy coding different number of layers, multiple descriptions of compressed data are generated.

公开(公告)号：NZ542483A

公开(公告)日：2007-06-29

申请号：NZ54248304

申请日：2004-03-17

Applicant: QUALCOMM INC

Inventor： RAVEENDRAN VIJAYALAKSHMI R ,  IRVINE ANN C

IPC: G06T5/00 ,  H04N7/26 ,  G06K9/40

Abstract: A method, apparatus and system for processing images using block based compression. In one embodiment, a method comprises determining whether two blocks are neighbouring blocks, determining whether the two neighbouring blocks are both subdivided, if the two blocks are neighbouring blocks; performing deblocking filtering on one or more edge pixels of the two neighbouring blocks, if it is determined that both of the two neighbouring blocks are not subdivided.