公开(公告)号：US09432685B2

公开(公告)日：2016-08-30

申请号：US14099800

申请日：2013-12-06

Applicant: QUALCOMM Incorporated

Inventor： Jaehong Chon ,  In Suk Chong ,  Hariharan Ganesh Lalgudi ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04B1/66 ,  H04N19/513 ,  H04N19/187 ,  H04N19/52 ,  H04N19/436

CPC classification number: H04N19/513 ,  H04N19/187 ,  H04N19/436 ,  H04N19/52

Abstract: A video coding device configured according to some aspects of this disclosure includes a memory configured to store a plurality of motion vector candidates. Each motion vector candidate can corresponding to at least one of a plurality of prediction units (PUs) partitioned in a parallel motion estimation region (MER). The video coding device also includes a processor in communication with the memory. The processor is configured to select a subset of the plurality of motion vector candidates to include in a merge candidate list. The selection can be based on a priority level of each motion vector candidate. The processor can be further configured to generate the merge candidate list to include the selected motion vector candidates.

Abstract translation: 根据本公开的一些方面配置的视频编码装置包括被配置为存储多个运动矢量候选的存储器。 每个运动矢量候选可以对应于在并行运动估计区域（MER）中分割的多个预测单元（PU）中的至少一个。 视频编码装置还包括与存储器通信的处理器。 处理器被配置为选择多个运动矢量候选的子集以包括在合并候选列表中。 该选择可以基于每个运动矢量候选的优先级。 处理器可以被进一步配置成生成合并候选列表以包括所选择的运动向量候选。

公开(公告)号：US09386305B2

公开(公告)日：2016-07-05

申请号：US13682293

申请日：2012-11-20

Applicant: Qualcomm Incorporated

Inventor： In Suk Chong ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/12 ,  H04N7/26 ,  H04N11/02 ,  H04N19/66 ,  H04N19/115 ,  H04N19/70 ,  H04N19/61 ,  H04N19/117 ,  H04N19/136 ,  H04N19/18 ,  H04N19/174 ,  H04N19/17 ,  H04N19/82

CPC classification number: H04N19/115 ,  H04N19/117 ,  H04N19/136 ,  H04N19/17 ,  H04N19/174 ,  H04N19/18 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82

Abstract: This disclosure relates to techniques for performing sample adaptive offset (SAO) processes in a video coding process. A video coder may store sets of SAO information. The SAO information may include data indicative of offset values. The video coder may also store mapping information that maps at least some of the sets of SAO information for one or more sequence partitions of a frame of video data. Additionally, the video coder may perform the SAO processes for one of the partitions of the frame based on the stored SAO information and the stored mapping information.

Abstract translation: 本公开涉及用于在视频编码过程中执行采样自适应偏移（SAO）处理的技术。 视频编码器可以存储一组SAO信息。 SAO信息可以包括指示偏移值的数据。 视频编码器还可以存储映射信息，其映射视频数据帧的一个或多个序列分区的SAO信息集合中的至少一些。 此外，视频编码器可以基于存储的SAO信息和存储的映射信息，对帧的一个分区执行SAO处理。

公开(公告)号：US20150117554A1

公开(公告)日：2015-04-30

申请号：US14592826

申请日：2015-01-08

Applicant: QUALCOMM Incorporated

Inventor： In Suk Chong ,  Marta Karczewicz

IPC: H04N19/117 ,  H04N19/96 ,  H04N19/182

CPC classification number: H04N19/117 ,  H04N7/26255 ,  H04N19/14 ,  H04N19/176 ,  H04N19/182 ,  H04N19/42 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82 ,  H04N19/85 ,  H04N19/96

Abstract: A filter unit of a video encoder or video decoder can determine a first metric for a group of pixels within a block of pixels based on a comparison of a subset of the pixels in the block to other pixels in the block; determine a filter based on the first metric; and generate a filtered image by applying the filter to the group of pixels. The subset of pixels can be selected to not include pixels on the boundary of the block of pixels.

Abstract translation: 视频编码器或视频解码器的滤波器单元可以基于块中的像素的子集与块中的其他像素的比较来确定像素块内的像素组的第一度量; 基于第一个度量确定一个过滤器; 并通过将滤波器应用于像素组来生成滤波图像。 可以选择像素的子集以不包括像素块的边界上的像素。

公开(公告)号：US08964832B2

公开(公告)日：2015-02-24

申请号：US14270155

申请日：2014-05-05

Applicant: QUALCOMM Incorporated

Inventor： In Suk Chong ,  Geert Van der Auwera ,  Marta Karczewicz

IPC: H04N19/105 ,  H04N19/463 ,  H04N19/117 ,  H04N19/167 ,  H04N19/196 ,  H04N19/70

CPC classification number: H04N19/105 ,  H04N19/117 ,  H04N19/14 ,  H04N19/167 ,  H04N19/176 ,  H04N19/196 ,  H04N19/463 ,  H04N19/70

Abstract: This disclosure describes techniques for performing sample adaptive offset signaling and coding in a video coding process. Techniques of the disclosure include both a merge-based and prediction-based signaling process for sample adaptive offset information (i.e., offset values and offset type). The techniques includes determining offset information for a current partition, comparing the offset information of the current partition with offset information of one or more neighbor partitions, coding a merge instruction in the case that the offset information of one of the one or more neighbor partitions is the same as the offset information of the current partition, and coding one of a plurality of prediction instructions in the case that the offset information of the one or more neighbor partitions is not the same as the offset information of the current partition.

Abstract translation: 本公开描述了在视频编码过程中执行采样自适应偏移信令和编码的技术。 本公开的技术包括用于样本自适应偏移信息（即，偏移值和偏移类型）的基于合并和基于预测的信令过程。 所述技术包括确定当前分区的偏移信息，将当前分区的偏移信息与一个或多个相邻分区的偏移信息进行比较，在一个或多个相邻分区之一的偏移信息为 与当前分区的偏移信息相同，并且在一个或多个相邻分区的偏移信息与当前分区的偏移信息不相同的情况下编码多个预测指令之一。

公开(公告)号：US20140177704A1

公开(公告)日：2014-06-26

申请号：US14134765

申请日：2013-12-19

Applicant: QUALCOMM Incorporated

Inventor： Wei Pu ,  Jianle Chen ,  Krishnakanth Rapaka ,  In Suk Chong ,  Marta Karczewicz

IPC: H04N19/132 ,  H04N19/117 ,  H04N19/186 ,  H04N19/44 ,  H04N19/17

Abstract: In general, techniques are described for performing multiple passes of sample adaptive offset (SAO) filtering when coding video data. A video decoding device comprising one or more processors may perform the techniques. The processors may determine a first SAO pixel classification for a block of video data and determine a first offset value based on the first SAO pixel classification and one or more pixel values of the block. The one or more processors may also determine a second SAO pixel classification for the block and determine a second offset value based on the second SAO pixel classification and the one or more pixel values of block of video data. The processors may then apply the first offset value and the second offset value to the block of video data to generate a block of SAO filtered video data.

Abstract translation: 通常，描述了在编码视频数据时执行采样自适应偏移（SAO）滤波的多次通过的技术。 包括一个或多个处理器的视频解码装置可以执行这些技术。 处理器可以确定视频数据块的第一SAO像素分类，并且基于第一SAO像素分类和块的一个或多个像素值来确定第一偏移值。 一个或多个处理器还可以确定块的第二SAO像素分类，并且基于第二SAO像素分类和视频数据块的一个或多个像素值来确定第二偏移值。 然后，处理器可以将第一偏移值和第二偏移值应用于视频数据块，以产生SAO滤波视频数据块。

公开(公告)号：US20130121417A1

公开(公告)日：2013-05-16

申请号：US13672265

申请日：2012-11-08

Applicant: QUALCOMM INCORPORATED

Inventor： In Suk Chong ,  Muhammed Zeyd Coban ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/503 ,  H04N19/103 ,  H04N19/159 ,  H04N19/17 ,  H04N19/174 ,  H04N19/176 ,  H04N19/436 ,  H04N19/46

Abstract: A video encoder determines reference blocks for each inter-predicted prediction unit (PU) of a tree block group such that each of the reference blocks is in a reference picture that is in a reference picture subset for the tree block group. The reference picture subset for the tree block group includes less than all reference pictures in a reference picture set of the current picture. The tree block group comprises a plurality of concurrently-coded tree blocks in the current picture. For each inter-predicted PU of the tree block group, the video encoder indicates, in a bitstream that includes a coded representation of video data, a reference picture that includes the reference block for the inter-predicted PU. A video decoder receives the bitstream, determines the reference pictures of the inter-predicted PUs of the tree block group, and generates decoded video blocks using the reference blocks of the inter-predicted PUs.

Abstract translation: 视频编码器确定树块组的每个预测预测单元（PU）的参考块，使得每个参考块在参考图像中，该参考图像在树块组的参考图像子集中。 用于树块组的参考图像子集包括小于当前图像的参考图像集合中的所有参考图像。 树块组包括当前图片中的多个同时编码的树块。 对于树块组的每个相互预测的PU，视频编码器在包括视频数据的编码表示的比特流中指示包括用于帧间预测的PU的参考块的参考图片。 视频解码器接收比特流，确定树块组的预测间PU的参考图像，并且使用帧间预测PU的参考块生成解码的视频块。

公开(公告)号：US11516473B2

公开(公告)日：2022-11-29

申请号：US17104353

申请日：2020-11-25

Applicant: QUALCOMM Incorporated

Inventor： In Suk Chong ,  Xianglin Wang ,  Cheng-Teh Hsieh

IPC: H04N19/13 ,  H03M7/30 ,  G06N3/02 ,  H04L29/06 ,  H04N19/176 ,  H04L69/04

Abstract: Techniques and systems are provided for compressing data in a neural network. For example, output data can be obtained from a node of the neural network. Re-arranged output data having a re-arranged scanning pattern can be generated. The re-arranged output data can be generated by re-arranging the output data into the re-arranged scanning pattern. One or more residual values can be determined for the re-arranged output data by applying a prediction mode to the re-arranged output data. The one or more residual values can then be compressed using a coding mode.

公开(公告)号：US10855986B2

公开(公告)日：2020-12-01

申请号：US15991685

申请日：2018-05-29

Applicant: QUALCOMM Incorporated

Inventor： In Suk Chong ,  Xianglin Wang ,  Cheng-Teh Hsieh

IPC: H04N19/13 ,  H03M7/30 ,  H04N19/176 ,  H04L29/06 ,  G06N3/02

Abstract: Techniques and systems are provided for compressing data in a neural network. For example, output data can be obtained from a node of the neural network. Re-arranged output data having a re-arranged scanning pattern can be generated. The re-arranged output data can be generated by re-arranging the output data into the re-arranged scanning pattern. One or more residual values can be determined for the re-arranged output data by applying a prediction mode to the re-arranged output data. The one or more residual values can then be compressed using a coding mode.

公开(公告)号：US10769819B2

公开(公告)日：2020-09-08

申请号：US16140108

申请日：2018-09-24

Applicant: QUALCOMM Incorporated

Inventor： In Suk Chong ,  Xianglin Wang ,  Cheng-Teh Hsieh

IPC: H03M7/24 ,  H04N19/182 ,  H04N19/124 ,  G06F7/483 ,  G06T9/00

Abstract: Certain aspects of the present disclosure provide a method of encoding data. The method generally includes receiving data comprising a fractional number comprising an exponential component and a fractional component, the exponential component being represented by an exponential bit sequence, the fractional component being represented by a fractional bit sequence. The method further includes determining if the fractional component is within a threshold of 0 or 1. The method further includes setting the fractional component to 0 when the fractional component is within the threshold of 0 or 1. The method further includes downscaling the fractional bit sequence based on a difference between the exponential component and a second threshold. The method further includes encoding the data. The method further includes transmitting the encoded data.

公开(公告)号：US10419781B2

公开(公告)日：2019-09-17

申请号：US15270914

申请日：2016-09-20

Applicant: QUALCOMM Incorporated

Inventor： Cheng-Teh Hsieh ,  In Suk Chong ,  Xianglin Wang

IPC: H04N19/93 ,  H04N19/13 ,  H04N19/146 ,  H04N19/184

Abstract: In one example, a device for accessing image data includes a memory configured to store image data, the memory comprising a first region and a second region; and one or more processing units configured to code most significant bits (MSBs) of a plurality of residuals of samples of a block of an image, each of the residuals representing a respective difference value between a respective raw sample value and a respective predicted value for the respective raw sample value, access the coded MSBs in the first region of the memory, and access least significant bits (LSBs) of the plurality of residuals of the samples in the second region of the memory.