公开(公告)号：WO2009049259A3

公开(公告)日：2009-05-28

申请号：PCT/US2008079648

申请日：2008-10-10

Applicant: QUALCOMM INC ,  TENG CHIA-YUAN ,  MANJUNATH SHARATH

Inventor： TENG CHIA-YUAN ,  MANJUNATH SHARATH

IPC: H04N7/26 ,  H04N7/30

CPC classification number: H04N19/117 ,  H04N19/157 ,  H04N19/86

Abstract: Techniques to remove inherited blockiness with a low million instructions per second (MIPs) are provided. In one configuration, a device comprises a processor operative to implement a set of instructions to universally correct blockiness. The processor commandeers the in-loop deblocking filtering engine and universally corrects blockiness, including inherited blockiness, using the in-loop deblocking filtering engine.

Abstract translation: 提供了以每秒百万条指令（MIP）去除遗传块效应的技术。 在一种配置中，装置包括处理器，其可操作以实施一组指令以通用地校正块状。 处理器指挥环路解锁滤波引擎，并通过使用环路中的解锁滤波引擎来普遍纠正阻塞性，包括遗传块级。

公开(公告)号：WO2008014301A3

公开(公告)日：2008-05-22

申请号：PCT/US2007074287

申请日：2007-07-25

Applicant: QUALCOMM INC ,  KATIBIAN BENNY ,  LI HUSHENG ,  WANG HAOHONG ,  MANJUNATH SHARATH

Inventor： KATIBIAN BENNY ,  LI HUSHENG ,  WANG HAOHONG ,  MANJUNATH SHARATH

IPC: H04N5/225 ,  H04N13/00

CPC classification number: H04N5/225 ,  H04N5/2258 ,  H04N5/23238 ,  H04N13/0239 ,  H04N13/0296

Abstract: A mobile device comprising a first image sensor, a second image sensor configured to change position with respect to the first image sensor, a controller configured to control the position of the second image sensor, and an image processing module configured to process and combine images captured by the first and second image sensors.

Abstract translation: 一种移动设备，包括第一图像传感器，被配置为相对于第一图像传感器改变位置的第二图像传感器，被配置为控制第二图像传感器的位置的控制器，以及被配置为处理和组合捕获的图像的图像处理模块 通过第一和第二图像传感器。

公开(公告)号：WO2008118801A3

公开(公告)日：2008-11-20

申请号：PCT/US2008057890

申请日：2008-03-21

Applicant: QUALCOMM INC ,  TENG CHIA-YUAN ,  MANJUNATH SHARATH

Inventor： TENG CHIA-YUAN ,  MANJUNATH SHARATH

IPC: H04N7/26 ,  H04N19/89 ,  H04N19/895

CPC classification number: H04N19/00939 ,  H04N19/107 ,  H04N19/117 ,  H04N19/142 ,  H04N19/159 ,  H04N19/166 ,  H04N19/174 ,  H04N19/895

Abstract: Error concealment is used to hide the effects of errors detected within digital video information. A complex error concealment mode decision is disclosed to determine whether spatial error concealment (SEC) or temporal error concealment (TEC) should be used. The error concealment mode decision system uses different methods depending on whether the damaged frame is an intra-frame or an inter-frame. If the video frame is an intra-frame then a similarity metric is used to determine if the intra-frame represents a scene-change or not. If the video frame is an intra-frame, a complex multi-termed equation is used to determine whether SEC or TEC should be used. A novel spatial error concealment technique is disclosed for use when the error concealment mode decision determines that spatial error concealment should be used for reconstruction. The novel spatial error concealment technique divides a corrupt macroblock into four different regions, a corner region, a row adjacent to the corner region, a column adjacent to the corner region, and a remainder main region. Those regions are then reconstructed in that order and information from earlier reconstructed regions may be used in later reconstructed regions. Finally, a macroblock refreshment technique is disclosed for preventing error propagation from harming non-corrupt inter-blocks. Specifically, an inter-macroblock may be 'refreshed' using spatial error concealment if there has been significant error caused damage that may cause the inter-block to propagate the errors.

Abstract translation: 错误隐藏用于隐藏数字视频信息中检测到的错误的影响。 公开了复杂的错误隐藏模式决定以确定是否应该使用空间错误隐藏（SEC）或时间错误隐藏（TEC）。 错误隐藏模式决定系统根据损坏的帧是帧内帧还是帧间帧使用不同的方法。 如果视频帧是帧内帧，则使用相似性度量来确定帧内帧是否表示场景变化。 如果视频帧是帧内帧，则使用复杂的多项式来确定是否应使用SEC或TEC。 公开了一种新颖的空间错误隐藏技术，用于当错误隐藏模式决定确定空间错误隐藏应该用于重建时。 新颖的空间错误隐藏技术将损坏的宏块划分为四个不同的区域，即拐角区域，与拐角区域相邻的行，与拐角区域相邻的列以及剩余主区域。 那些区域然后按该顺序重建，并且来自较早重建区域的信息可以用于稍后重建区域中。 最后，公开了一种宏块更新技术，用于防止错误传播损害非损坏的块间。 具体而言，如果存在可能导致块间传播错误的显着错误导致的损害，则可以使用空间错误隐藏来“刷新”宏块间宏块。

公开(公告)号：WO2006042323A3

公开(公告)日：2006-09-08

申请号：PCT/US2005037072

申请日：2005-10-12

Applicant: QUALCOMM INC ,  LIANG YI ,  EL-MALEH KHALED HELMI ,  MANJUNATH SHARATH

Inventor： LIANG YI ,  EL-MALEH KHALED HELMI ,  MANJUNATH SHARATH

IPC: H04N19/89 ,  H04N7/50

CPC classification number: H04N19/00278 ,  H04N19/107 ,  H04N19/14 ,  H04N19/147 ,  H04N19/164 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61 ,  H04N19/89

Abstract: An adaptive Intra-refresh (IR) technique for digital video encoding adjusts IR rate based on video content, or a combination of video content and channel condition. The IR rate may be applied at the frame level or macroblock (MB) level. At the frame level, the IR rate specifies the percentage of MBs to be Intra-coded within the frame. At the MB level, the IR rate defines a statistical probability that a particular MB is to be Intra-coded. The IR rate is adjusted in proportion to a combined metric that weighs estimated channel loss probability, frame-to-frame variation, and texture information. The IR rate can be determined using a close-form solution that requires relatively low implementation complexity. For example, such a close-form does not require iteration or an exhaustive search. In addition, the IR rate can be determined from parameters that are available before motion estimation and compensation are performed.

Abstract translation: 用于数字视频编码的自适应内部刷新（IR）技术基于视频内容或视频内容和频道条件的组合来调整IR速率。 可以在帧级或宏块（MB）级应用IR速率。 在帧级别，IR速率指定帧内帧内编码的百分比。 在MB级别，IR率定义了特定MB被内部编码的统计概率。 IR速率与重量估计的信道丢失概率，帧到帧变化和纹理信息的组合度量成比例地调整。 IR速率可以使用需要较低实现复杂度的紧密形式的解决方案来确定。 例如，这种关闭形式不需要迭代或穷尽搜索。 另外，可以在执行运动估计和补偿之前可用的参数来确定IR速率。

公开(公告)号：WO0182289A3

公开(公告)日：2002-01-10

申请号：PCT/US0112665

申请日：2001-04-18

Applicant: QUALCOMM INC

Inventor： MANJUNATH SHARATH ,  HUANG PENJUNG ,  CHOY EDDIE-LUN TIK

IPC: G10L19/04 ,  G10L11/04 ,  G10L13/00 ,  G10L19/00 ,  G10L19/12 ,  H03M7/36

CPC classification number: G10L21/02 ,  G10L19/005 ,  G10L19/097

Abstract: A frame erasure compensation method in a variable-rate speech coder includes quantizing, with a first encoder, a pitch lag value for a current frame and a first delta pitch lag value equal to the difference between the pitch lag value for the current frame and the pitch lag value for the previous frame. A second, predictive encoder quantizes only a second delta pitch lag value for the previous frame (equal to the difference between the pitch lag value for the previous frame and the pitch lag value for the frame prior to that frame). If the frame prior to the previous frame is processed as a frame erasure, the pitch lag value for the previous frame is obtained by subtracting the first delta pitch lag value from the pitch lag value for the current frame. The pitch lag value for the erasure frame is then obtained by subtracting the second delta pitch lag value from the pitch lag value for the previous frame. Additionally, a waveform interpolation method may be used to smooth discontinuities caused by changes in the coder pitch memory.

Abstract translation: 可变速率语音编码器中的帧擦除补偿方法包括：利用第一编码器量化当前帧的音调滞后值，以及等于当前帧的音调滞后值与第 前一帧的音调滞后值。 第二预测编码器仅量化前一帧的第二增量音调滞后值（等于先前帧的音调滞后值与该帧之前的帧的音调滞后值之间的差）。 如果先前帧之前的帧被作为帧擦除处理，则通过从当前帧的音调滞后值中减去第一增量音调滞后值来获得先前帧的音调滞后值。 然后通过从前一帧的音调滞后值减去第二增量音调滞后值来获得擦除帧的音调滞后值。 此外，可以使用波形插值方法来平滑由编码器音调存储器的变化引起的不连续性。

公开(公告)号：WO2009155569A9

公开(公告)日：2010-02-18

申请号：PCT/US2009048047

申请日：2009-06-19

Applicant: QUALCOMM INC ,  GUPTA ALOK K ,  MANJUNATH SHARATH ,  KANDHADAI ANANTHAPADMANABHAN

Inventor： GUPTA ALOK K ,  MANJUNATH SHARATH ,  KANDHADAI ANANTHAPADMANABHAN

IPC: G10L19/12 ,  G10L11/04

CPC classification number: G10L19/20 ,  G10L19/025 ,  G10L19/125 ,  G10L19/22 ,  G10L25/90

Abstract: Systems, methods, and apparatus for low-bit-rate coding of transitional speech frames are disclosed.

Abstract translation: 公开了用于过渡语音帧的低比特率编码的系统，方法和设备。

公开(公告)号：WO2007120316A3

公开(公告)日：2008-01-31

申请号：PCT/US2006061631

申请日：2006-12-05

Applicant: QUALCOMM INC ,  MANJUNATH SHARATH ,  KANDHADAI ANANTHAPADMANABHAN

Inventor： MANJUNATH SHARATH ,  KANDHADAI ANANTHAPADMANABHAN

IPC: G10L19/14 ,  G10L11/00 ,  G10L19/06 ,  H04M11/06 ,  H04Q1/444

CPC classification number: G10L19/22 ,  G10L19/18 ,  G10L25/78

Abstract: Systems, methods, and apparatus for the detection of signals having spectral peaks with narrow bandwidth are described herein. The range of described configurations includes implementations that perform such detection using parameters of a linear prediction coding (LPC) analysis scheme.

Abstract translation: 本文描述了用于检测具有窄带宽的频谱峰值的信号的系统，方法和装置。 所描述的配置的范围包括使用线性预测编码（LPC）分析方案的参数来执行这种检测的实现。

公开(公告)号：WO2007047786A3

公开(公告)日：2007-07-12

申请号：PCT/US2006040761

申请日：2006-10-18

Applicant: QUALCOMM INC ,  TENG CHIA-YUAN ,  MANJUNATH SHARATH ,  YE YAN

Inventor： TENG CHIA-YUAN ,  MANJUNATH SHARATH ,  YE YAN

IPC: H04N7/26 ,  H04N7/30

CPC classification number: H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/61

Abstract: This disclosure describes selective deblock filtering techniques that are particularly useful with coding standards that do not specify in-loop deblock filtering for standard compliance. In accordance with this disclosure, deblock filtering may be selectively performed with respect to block boundaries of a given video block being coded, a motion compensation process can be performed using a filtered version of the prediction video frame used to code the given video block, or both. This disclosure also provides selection rules that can be applied to determine what type of deblocking techniques to apply in various scenarios. The selection rules may improve the video coding and may also ensure that mismatch between video blocks at an encoder and a decoder is not introduced by the deblock filtering.

Abstract translation: 本公开描述了选择性去块滤波技术，其特别适用于不规定用于标准符合性的循环去块滤波的编码标准。 根据本公开，可以相对于被编码的给定视频块的块边界来选择性地执行去块滤波，可以使用用于对给定视频块进行编码的预测视频帧的滤波版本来执行运动补偿处理，或 都。 本公开还提供了可以应用于确定在各种情况下应用何种类型的去块技术的选择规则。 选择规则可以改善视频编码，并且还可以确保编码器和解码器之间的视频块之间的不匹配不由去块滤波引入。

公开(公告)号：WO2004054296A3

公开(公告)日：2004-09-10

申请号：PCT/US0338805

申请日：2003-12-04

Applicant: QUALCOMM INC

Inventor： EL-MALEH KHALED HELMI ,  KANDHADAI ANANTHAPADMANABHAN A ,  MANJUNATH SHARATH

IPC: G10L19/14 ,  H04W88/18 ,  H04Q7/30

CPC classification number: G10L19/173 ,  H04W88/181

Abstract: Techniques are presented herein to provide tandem-free operation between two wireless terminals through two otherwise incompatible wireless networks. Specifically, embodiments provide tandem-free operation between a wireless terminal [104] communicating through a continuous transmission (CTX) wireless channel [102] to a wireless terminal [124] communicating through a discontinuous transmission (DTX) wireless channel [122]. In a first aspect, inactive speech frames are translated between DTX and CTX formats [410 and 430]. In a second aspect, each wireless terminal includes an active speech decoder [206 and 216] that is compatible with the active speech encoder [204 and 214] on the opposite end of the mobile-to-mobile connection.

Abstract translation: 本文介绍了通过两个不兼容的无线网络在两个无线终端之间提供无串联操作的技术。 具体而言，实施例在通过连续传输（CTX）无线信道[102]通信的无线终端[104]与通过非连续传输（DTX）无线信道[122]通信的无线终端[124]之间提供无串联操作。 在第一方面，非活动语音帧在DTX和CTX格式之间被翻译[410和430]。 在第二方面，每个无线终端包括与移动 - 到 - 移动连接的相对端上的有效语音编码器[204和214]兼容的有源语音解码器[206和216]。

公开(公告)号：WO2008098141A3

公开(公告)日：2008-10-09

申请号：PCT/US2008053340

申请日：2008-02-07

Applicant: QUALCOMM INC ,  MALAYATH NARENDRANATH ,  MANJUNATH SHARATH

Inventor： MALAYATH NARENDRANATH ,  MANJUNATH SHARATH

IPC: H03M7/30 ,  H04N7/26 ,  H04N7/50

CPC classification number: H04N19/154 ,  H04N19/124

Abstract: Techniques for estimating distortion due to quantization of data are described. A histogram with multiple bins may be obtained for a set of coefficients to be quantized. Distortion due to quantization of the set of coefficients may be estimated based on the histogram and average distortions for the histogram bins. The number of coefficients in each bin may be multiplied with an average distortion for the bin to obtain a per-bin distortion. The per-bin distortions for all of the bins may be accumulated and scaled with a correction factor to obtain the estimated distortion. The techniques may be used to estimate distortions for a set of coding elements. Distortion and rate may be estimated for each coding element for each of multiple quantization steps. A set of quantization steps may be selected for the set of coding elements based on the estimated distortions and the estimated rates for the set of coding elements for different quantization steps.

Abstract translation: 描述了用于估计由于数据的量化而导致的失真的技术。 可以针对待量化的一组系数获得具有多个箱的直方图。 由于该系数集合的量化而产生的失真可以基于直方图区间和直方图区间的平均失真来估计。 每个仓中的系数的数量可以与仓的平均失真相乘以获得每个仓变形。 所有箱体的每个箱体失真可以被累积并且用修正因子缩放以获得估计的失真。 这些技术可以用来估计一组编码元素的失真。 对于多个量化步骤中的每一个，可以为每个编码元素估计失真和速率。 基于针对不同量化步骤的该组编码元素的估计失真和估计速率，可以为该组编码元素选择一组量化步长。