公开(公告)号：JP2013243716A

公开(公告)日：2013-12-05

申请号：JP2013141572

申请日：2013-07-05

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

Inventor： MARTA KARCZEWICZ ,  YE YAN

IPC: H04N7/30

CPC classification number: H04N19/61 ,  H04N19/13 ,  H04N19/46 ,  H04N19/70

Abstract: PROBLEM TO BE SOLVED: To describe techniques for entropy coding of video blocks, and provide a syntax element that may promote coding efficiency.SOLUTION: The syntax element may identify a number of non-zero value sub-blocks within a video block, where the non-zero value sub-blocks comprise sub-blocks within the video block that include at least one non-zero coefficient. A method of coding a video block comprises coding the syntax element, generating the non-zero value sub-blocks of the video block, and entropy-coding the non-zero value sub-blocks.

Abstract translation: 要解决的问题：描述视频块的熵编码的技术，并提供可以提高编码效率的语法元素。解决方案：语法元素可以标识视频块内的多个非零值子块，其中 非零值子块包括视频块内包括至少一个非零系数的子块。 对视频块进行编码的方法包括对语法元素进行编码，生成视频块的非零值子块，以及对非零值子块进行熵编码。

公开(公告)号：JP2013051699A

公开(公告)日：2013-03-14

申请号：JP2012221420

申请日：2012-10-03

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

Inventor： MARTA KARCZEWICZ ,  RAHUL PANCHAL ,  YE YAN

IPC: H04N7/30

CPC classification number: H04N19/30 ,  H04N19/10 ,  H04N19/34 ,  H04N19/36 ,  H04N19/60 ,  H04N19/91

Abstract: PROBLEM TO BE SOLVED: To provide scalable video coding techniques.SOLUTION: The techniques may be used to encode refinements of a video block for enhancement layer bit streams in a single coding pass, thereby reducing coding complexity, coding delay and memory requirements. In some instances, the techniques encode each nonzero coefficient of a coefficient vector of the enhancement layer without knowledge of any subsequent coefficients. Coding the enhancement layer in a single pass may eliminate the need to perform a first pass for analyzing the coefficient vector and a second pass for coding the coefficient vector based on the analysis.

Abstract translation: 要解决的问题：提供可扩展的视频编码技术。 解决方案：这些技术可以用于在单个编码遍中对增强层比特流的视频块的细化进行编码，从而降低编码复杂度，编码延迟和存储器要求。 在一些情况下，该技术对增强层的系数向量的每个非零系数进行编码，而不知道任何后续系数。 在单程中对增强层进行编码可以消除执行用于分析系数向量的第一遍的需要和基于分析对系数向量进行编码的第二遍。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012217177A

公开(公告)日：2012-11-08

申请号：JP2012116636

申请日：2012-05-22

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

Inventor： MARTA KARCZEWICZ

IPC: H04N7/32

CPC classification number: H04N19/36 ,  H04N19/13 ,  H04N19/157 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/31 ,  H04N19/33 ,  H04N19/34 ,  H04N19/61

Abstract: PROBLEM TO BE SOLVED: To provide techniques for coding an enhancement layer in a scalable video coding (SVC) scheme.SOLUTION: The techniques for coding an enhancement layer involve run-length coding of significant coefficients and refinement coefficients of the enhancement layer. Rather than performing two different run-length passes to separately code the significant coefficients and refinement coefficients, the techniques perform run-length coding of the significant coefficients and refinement coefficients together. Therefore, run values of the run-length coding codes the significant coefficients with the refinement coefficients. In addition, the need to send sign information for some of the refinement coefficients can be eliminated. Instead, this sign information for some of the refinement coefficients may be derived at the decoder based on the sign values of corresponding coefficients of previously encoded layers of the SVC scheme.

Abstract translation: 要解决的问题：提供用于在可伸缩视频编码（SVC）方案中对增强层进行编码的技术。 解决方案：用于编码增强层的技术涉及增强层的有效系数和细化系数的游程长度编码。 这些技术不是执行两个不同的游程长度传递来分别编码有效系数和细化系数，而是一起对有效系数和细化系数进行游程长度编码。 因此，运行长度编码代码的值与精细系数有关系数。 此外，可以消除需要发送一些细化系数的符号信息。 相反，可以在解码器基于SVC方案的先前编码层的相应系数的符号值导出一些细化系数的该符号信息。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2013153463A

公开(公告)日：2013-08-08

申请号：JP2013035668

申请日：2013-02-26

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

Inventor： YE YAN ,  MARTA KARCZEWICZ

IPC: H04N7/32

CPC classification number: H04N19/625 ,  H04N19/103 ,  H04N19/11 ,  H04N19/12 ,  H04N19/122 ,  H04N19/129 ,  H04N19/13 ,  H04N19/147 ,  H04N19/157 ,  H04N19/176 ,  H04N19/18 ,  H04N19/19 ,  H04N19/196 ,  H04N19/197 ,  H04N19/42 ,  H04N19/46 ,  H04N19/463 ,  H04N19/48 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70

Abstract: PROBLEM TO BE SOLVED: To provide techniques for coding header information of video blocks.SOLUTION: The techniques select one of a plurality of prediction modes for use in generating a prediction block of a video block of a coding unit, the plurality of prediction modes including unidirectional prediction modes and multi-directional prediction modes that combine at least two unidirectional prediction modes. An encoding device encodes the prediction mode of the current video block on the basis of prediction modes of one or more previously encoded video blocks of the coding unit. Likewise, a decoding unit receives encoded video data of a video block of a coding unit, and decodes the encoded video data to identify one of a plurality of prediction modes for use in generating a prediction block of the video block on the basis of prediction modes of one or more previously decoded video blocks of the coding unit.

Abstract translation: 要解决的问题：提供用于编码视频块的头信息的技术。解决方案：该技术选择用于生成编码单元的视频块的预测块的多种预测模式之一，所述多种预测模式包括 组合至少两个单向预测模式的单向预测模式和多方向预测模式。 编码装置根据编码部的一个以上的先前编码的视频块的预测模式对当前视频块的预测模式进行编码。 类似地，解码单元接收编码单元的视频块的编码视频数据，并且解码编码视频数据，以基于预测模式来识别用于生成视频块的预测块的多个预测模式之一 的编码单元的一个或多个先前解码的视频块。

公开(公告)号：JP2013085280A

公开(公告)日：2013-05-09

申请号：JP2012273380

申请日：2012-12-14

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

Inventor： CHEN PEISONG ,  YE YAN ,  MARTA KARCZEWICZ

IPC: H04N7/26

CPC classification number: H04N19/70 ,  H04N19/103 ,  H04N19/147 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61

Abstract: PROBLEM TO BE SOLVED: To provide techniques for encoding and decoding digital video data using macroblocks that are larger than the macroblocks prescribed by conventional video encoding and decoding standards.SOLUTION: A method comprises: receiving, with a video decoder, a coded unit comprising a plurality of video blocks, where at least one of the plurality of video blocks comprises a size of more than 16×16 pixels; receiving syntax information for the coded unit that includes a maximum size value indicating a size of the largest one of the plurality of video blocks in the coded unit; selecting a block-type syntax decoder according to the maximum size value; and decoding each of the plurality of video blocks in the coded unit using the selected block-type syntax decoder.

Abstract translation: 要解决的问题：提供使用比常规视频编码和解码标准规定的宏块大的宏块对数字视频数据进行编码和解码的技术。 解决方案：一种方法，包括：用视频解码器接收包括多个视频块的编码单元，其中所述多个视频块中的至少一个包括大于16×16像素的大小; 接收所述编码单元的语法信息，所述语法信息包括指示所述多个视频块中所述最大的一个视频块的尺寸的最大尺寸值; 根据最大尺寸值选择块型语法解码器; 以及使用所选择的块型语法解码器对编码单元中的多个视频块中的每一个进行解码。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2013081210A

公开(公告)日：2013-05-02

申请号：JP2012260247

申请日：2012-11-28

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

Inventor： MARTA KARCZEWICZ ,  CHIEN WEI-JUNG

IPC: H04N7/26

CPC classification number: H04N19/85 ,  H04N19/117 ,  H04N19/44 ,  H04N19/46 ,  H04N19/80

Abstract: PROBLEM TO BE SOLVED: To provide systems and methods of filtering video data using a plurality of filters.SOLUTION: A method includes receiving and decoding a plurality of filters embedded in a video data bitstream at a video decoder. The method also includes selecting, based on information included in the video data bitstream, a particular filter of the plurality of filters. The method further includes applying the particular filter to at least a portion of decoded video data of the video data bitstream to produce filtered decoded video data.

Abstract translation: 要解决的问题：提供使用多个滤波器来过滤视频数据的系统和方法。 解决方案：一种方法包括在视频解码器处接收和解码嵌入在视频数据比特流中的多个滤波器。 该方法还包括基于视频数据比特流中包含的信息来选择多个滤波器的特定滤波器。 该方法还包括将特定滤波器应用于视频数据比特流的解码视频数据的至少一部分，以产生经滤波的解码视频数据。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2013243739A

公开(公告)日：2013-12-05

申请号：JP2013147070

申请日：2013-07-12

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

Inventor： MARTA KARCZEWICZ ,  YE YAN ,  CHEN PEISONG

IPC: H04N7/32

CPC classification number: H04N19/523 ,  H04N19/117 ,  H04N19/136 ,  H04N19/147 ,  H04N19/182 ,  H04N19/192 ,  H04N19/70 ,  H04N19/82

Abstract: PROBLEM TO BE SOLVED: To provide various interpolation techniques performed by an encoder and a decoder during a motion compensation process of video coding.SOLUTION: An encoder interpolates pixel values of reference video data on the basis of a plurality of different predefined interpolation filters. In this example, the decoder receives a syntax element that identifies an interpolation filter, and interpolates pixel values of reference video data on the basis of the interpolation filter identified by the syntax element. In another example, a method of interpolating predictive video data includes: generating half-pixel values on the basis of integer pixel values; rounding the half-pixel values to generate half-pixel interpolated values; storing the half-pixel values as non-rounded versions of the half-pixel values; and generating quarter-pixel values on the basis of the non-rounded versions of the half-pixel values and the integer pixel values.

Abstract translation: 要解决的问题：在视频编码的运动补偿处理期间提供由编码器和解码器执行的各种插值技术。解码器：编码器基于多个不同的预定插值滤波器内插参考视频数据的像素值。 在该示例中，解码器接收标识内插滤波器的语法元素，并且基于由语法元素识别的内插滤波器来内插参考视频数据的像素值。 在另一示例中，内插预测性视频数据的方法包括：基于整数像素值生成半像素值; 舍入半像素值以产生半像素内插值; 将半像素值存储为半像素值的非圆形版本; 以及基于半像素值和整数像素值的非圆形版本生成四分之一像素值。

公开(公告)号：JP2013243720A

公开(公告)日：2013-12-05

申请号：JP2013142041

申请日：2013-07-05

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

Inventor： YE YAN ,  CHEN PEISONG ,  MARTA KARCZEWICZ

IPC: H04N7/32

CPC classification number: H04N19/00139 ,  H04N19/117 ,  H04N19/136 ,  H04N19/147 ,  H04N19/182 ,  H04N19/192 ,  H04N19/523 ,  H04N19/82

Abstract: PROBLEM TO BE SOLVED: To provide a proper method of interpolating predictive video data for motion-compensated coding of video.SOLUTION: An encoder interpolates pixel values of reference video data on the basis of a plurality of different predefined interpolation filters. The decoder receives a syntax element that identifies an interpolation filter, and interpolates pixel values of reference video data on the basis of the interpolation filter identified by the syntax element. A method of interpolating predictive video data includes: generating half-pixel values on the basis of integer pixel values; rounding the half-pixel values to generate half-pixel interpolated values; storing the half-pixel values as non-rounded versions of the half-pixel values; and generating quarter-pixel values on the basis of the non-rounded versions of the half-pixel values and the integer pixel values.

Abstract translation: 要解决的问题：提供内插视频的运动补偿编码的预测视频数据的适当方法。解码器：编码器基于多个不同的预定插值滤波器内插参考视频数据的像素值。 解码器接收识别内插滤波器的语法元素，并且基于由语法元素识别的内插滤波器来内插参考视频数据的像素值。 内插预测图像数据的方法包括：基于整数像素值生成半像素值; 舍入半像素值以产生半像素内插值; 将半像素值存储为半像素值的非圆形版本; 以及基于半像素值和整数像素值的非圆形版本生成四分之一像素值。

公开(公告)号：JP2013243719A

公开(公告)日：2013-12-05

申请号：JP2013141767

申请日：2013-07-05

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

Inventor： YE YAN ,  MARTA KARCZEWICZ ,  RAHUL PANCHAL

IPC: H04N7/26

CPC classification number: H04N19/70

Abstract: PROBLEM TO BE SOLVED: To provide techniques for generating a layered encoded bitstream structure that exploits correlation in header information among video blocks of a coded unit of video data.SOLUTION: A video encoder separates header information of the video blocks of a slice (or other coded unit) from the residual information of the video blocks of the slice. The video encoder run-length encodes the header information of the video blocks to better exploit correlation of the header information among the blocks of the slice. After encoding the header information of the blocks of the slice, the video encoder encodes the residual information for each of the blocks of the slice. The video encoder transmits the encoded header information as a first sequence of bits, and transmits the encoded residual information as a second sequence of bits.

Abstract translation: 要解决的问题：提供用于生成分层编码比特流结构的技术，其利用视频数据的编码单位的视频块中的标题信息中的相关性。解码：视频编码器分离切片（或其他）的视频块的标题信息 编码单元）从切片的视频块的残差信息中获取。 视频编码器运行长度编码视频块的标题信息，以更好地利用片之间的标题信息的相关性。 在对切片的块的标题信息进行编码之后，视频编码器对切片的每个块的残差信息进行编码。 视频编码器将经编码的头信息作为第一比特序列发送，并且以第二比特序列的形式发送编码的残差信息。

公开(公告)号：JP2013168949A

公开(公告)日：2013-08-29

申请号：JP2013041958

申请日：2013-03-04

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

Inventor： MARTA KARCZEWICZ ,  MOTTA GIOVANNI ,  YE YAN ,  CHEN PEISONG

IPC: H04N7/32

CPC classification number: H04N7/50 ,  H04N19/172 ,  H04N19/176 ,  H04N19/52 ,  H04N19/523 ,  H04N19/577 ,  H04N19/61

Abstract: PROBLEM TO BE SOLVED: To provide a technique for adding an offset to a prediction video block during video coding.SOLUTION: A method of encoding a video block includes: interpolating a first block of predicted values based upon a first reference video unit in a first list of reference data, and interpolating a second block of predicted values based upon a second reference video unit in a second list of reference data; calculating, for sub-integer pixel positions, a first offset value based upon the first block and a current video block, and calculating a second offset value based upon the first offset value and the second block; determining a final block of offset values based upon the first block of predicted values, the second block of predicted values, the first offset value, and the second offset value; and encoding the current video block based upon the final block of offset values.

Abstract translation: 要解决的问题：提供一种在视频编码期间向预测视频块添加偏移的技术。解决方案：一种对视频块进行编码的方法包括：基于第一参考视频单元内插第一预测值块 参考数据列表，以及基于参考数据的第二列表中的第二参考视频单元内插第二预测值块; 针对子整数像素位置计算基于第一块和当前视频块的第一偏移值，以及基于第一偏移值和第二块计算第二偏移值; 基于所述第一预测值块，所述第二预测值块，所述第一偏移值和所述第二偏移值，确定最终偏移值块; 以及基于偏移值的最终块对当前视频块进行编码。