公开(公告)号：US12165366B2

公开(公告)日：2024-12-10

申请号：US17145998

申请日：2021-01-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dejun Zhang ,  Bo Liu ,  Wei Hu ,  Wenhai Wu ,  Tian Wang

IPC: G06T9/00 ,  G06T3/60 ,  G06T3/602 ,  G06T15/00 ,  H04N19/20 ,  H04N19/46

Abstract: A point cloud decoding method related to the field of coding technologies and includes reconstructing a point cloud comprising one or more patches. The one or more patches comprise a current patch. The reconstructing process may include transforming coordinates (x2, y2) of a second point of the current patch in a second coordinate system to coordinates (x1, y1) of a first point of the current patch in a first coordinate system, where the coordinates (x1, y1) of the first point of the current patch in the first coordinate system may be obtained based on the coordinates (x2, y2) of the second point of the current patch in the second coordinate system and a transform matrix.

公开(公告)号：US10026412B2

公开(公告)日：2018-07-17

申请号：US15151508

申请日：2016-05-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fuwei Ma ,  Dejun Zhang ,  Minjie Xie ,  Qing Zhang

IPC: G10L19/10 ,  G10L19/12 ,  G10L19/113 ,  H03M7/30 ,  H03M7/40 ,  G10L19/002 ,  G10L19/04 ,  G10L19/00

Abstract: The present application discloses a pulse encoding method for use by a voice encoder. An initial number of coding bits is determined according to number of pulses in an input signal. An index value is calculated according to information of the pulses in the input signal. The index value is compared with an adjustment threshold value. If the index value is smaller than the adjustment threshold value, the index value is encoded using a reduced number of encoding bits. If the index value is not smaller than the adjustment threshold value, the index value plus an offset value is encoded using the initial number of encoding bits. The reduced number of encoding bits is smaller than the initial number of encoding bits, and the offset value is greater than or equal to the adjustment threshold value.

公开(公告)号：US09508348B2

公开(公告)日：2016-11-29

申请号：US14547860

申请日：2014-11-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fuwei Ma ,  Dejun Zhang

IPC: G10L19/12 ,  G10L19/24 ,  G10L19/107 ,  G10L19/00

CPC classification number: G10L19/107 ,  G10L19/00 ,  G10L19/002 ,  G10L19/008 ,  G10L19/12 ,  G10L19/24

Abstract: In a pulse encoding and decoding method and a pulse codec, more than two tracks are jointly encoded, so that free codebook space in the situation of single track encoding can be combined during joint encoding to become code bits that may be saved. Furthermore, a pulse that is on each track and required to be encoded is combined according to positions, and the number of positions having pulses, distribution of the positions that have pulses on the track, and the number of pulses on each position that has a pulse are encoded separately, so as to avoid separate encoding performed on multiple pulses of a same position, thereby further saving code bits.

公开(公告)号：US09392218B2

公开(公告)日：2016-07-12

申请号：US14972222

申请日：2015-12-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanling Guo ,  Tian Wang ,  Dejun Zhang

IPC: H04N7/14 ,  H04N7/15 ,  H04N19/172 ,  H04N19/182 ,  H04N19/186 ,  H04N19/503 ,  G06T7/00

CPC classification number: H04N7/142 ,  G06T7/11 ,  G06T7/194 ,  G06T7/50 ,  G06T2207/10024 ,  G06T2207/10028 ,  H04N7/15 ,  H04N19/115 ,  H04N19/167 ,  H04N19/17 ,  H04N19/172 ,  H04N19/182 ,  H04N19/186 ,  H04N19/29 ,  H04N19/503 ,  H04N19/597

Abstract: An image processing method may include collecting a video image and a depth map of an object; segmenting, using the depth map, a video image frame corresponding to the video image at a same moment to obtain a contour of a foreground image in the video image frame; performing, according to the contour of the foreground image, first encoding on pixels of a video image inside the contour of the foreground image in the video image frame and second encoding on pixels of a video image outside the contour in the video image frame, where an encoding rate of the first encoding is higher than an encoding rate of the second encoding. According to the embodiments of the present disclosure, an occupation rate of network bandwidth in a video image transmission process can be lowered.

Abstract translation: 图像处理方法可以包括收集对象的视频图像和深度图; 使用深度图分割在同一时刻对应于视频图像的视频图像帧，以获得视频图像帧中的前景图像的轮廓; 根据前景图像的轮廓对视频图像帧中的前景图像的轮廓内的视频图像的像素进行第一编码，并对视频图像帧中的轮廓外的视频图像的像素进行第二编码，其中 第一编码的编码率高于第二编码的编码率。 根据本公开的实施例，可以降低视频图像传输处理中的网络带宽的占用率。

公开(公告)号：US09349381B2

公开(公告)日：2016-05-24

申请号：US14252382

申请日：2014-04-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fuwei Ma ,  Dejun Zhang ,  Minjie Xie ,  Qing Zhang

IPC: G10L19/04 ,  H03M7/30 ,  H03M7/40 ,  G10L19/002

CPC classification number: G10L19/113 ,  G10L19/002 ,  G10L19/04 ,  G10L19/10 ,  G10L19/12 ,  G10L2019/0016 ,  H03M7/30 ,  H03M7/40 ,  H03M7/4068

Abstract: The present invention discloses a method and a device for pulse encoding, and a method and a device for pulse decoding. The method for pulse encoding includes: calculating an index value of an input pulse; selecting an adjustment threshold value according to the number of pulses, and comparing the index value of the pulse with the adjustment threshold value; if the index value is smaller than the adjustment threshold value, adopting the first number of encoding bits to encode the index value, if the index value is not smaller than the adjustment threshold value, adopting the second number of encoding bits to encode the index value plus an offset value, where the first number is smaller than the second number, the first number and the second number are both positive integers, and the offset value is greater than or equal to the adjustment threshold value.

Abstract translation: 本发明公开了一种用于脉冲编码的方法和装置，以及用于脉冲解码的方法和装置。 脉冲编码方法包括：计算输入脉冲的指标值; 根据所述脉冲数选择调整阈值，并将所述脉冲的指标值与所述调整阈值进行比较; 如果索引值小于调整阈值，则采用第一数量的编码比特来对索引值进行编码，如果索引值不小于调整阈值，则采用第二数量的编码比特来对索引值进行编码 加上偏移值，其中第一个数字小于第二个数字，第一个数字和第二个数字都是正整数，偏移量大于或等于调整阈值。

公开(公告)号：US08988256B2

公开(公告)日：2015-03-24

申请号：US13622207

申请日：2012-09-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fuwei Ma ,  Dejun Zhang

IPC: H03M7/34 ,  G10L19/08 ,  G10L19/10

CPC classification number: H03M7/3082 ,  G10L19/08 ,  G10L19/10

Abstract: A coding method, a decoding method, a coder, and a decoder are disclosed herein. A coding method includes: obtaining the pulse distribution, on a track, of the pulses to be encoded on the track; determining a distribution identifier for identifying the pulse distribution according to the pulse distribution; and generating a coding index that includes the distribution identifier. A decoding method includes: receiving a coding index; obtaining a distribution identifier from the coding index, wherein the distribution identifier is configured to identify the pulse distribution, on a track, of the pulses to be encoded on the track; determining the pulse distribution, on a track, of all the pulses to be encoded on the track according to the distribution identifier; and reconstructing the pulse order on the track according to the pulse distribution.

公开(公告)号：US08959018B2

公开(公告)日：2015-02-17

申请号：US14150498

申请日：2014-01-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fuwei Ma ,  Dejun Zhang

IPC: G10L19/02 ,  G10L19/00 ,  G10L21/00 ,  G10L21/04 ,  H03M7/00 ,  H03M1/66 ,  G10L19/107 ,  G10L19/12 ,  G10L19/24

CPC classification number: G10L19/107 ,  G10L19/00 ,  G10L19/002 ,  G10L19/008 ,  G10L19/12 ,  G10L19/24

Abstract: In a pulse encoding and decoding method and a pulse codec, more than two tracks are jointly encoded, so that free codebook space in the situation of single track encoding can be combined during joint encoding to become code bits that may be saved. Furthermore, a pulse that is on each track and required to be encoded is combined according to positions, and the number of positions having pulses, distribution of the positions that have pulses on the track, and the number of pulses on each position that has a pulse are encoded separately, so as to avoid separate encoding performed on multiple pulses of a same position, thereby further saving code bits.

Abstract translation: 在脉冲编码和解码方法和脉冲编解码器中，联合编码两个以上的轨道，从而在联合编码期间可以组合单轨道编码情况下的空闲码本空间，成为可以保存的码位。 此外，根据位置，具有脉冲的位置的数量，在轨道上具有脉冲的位置的分布以及每个位置上的脉冲数，组合在每个轨道上并且需要编码的脉冲， 脉冲被分开编码，以避免在相同位置的多个脉冲上执行单独编码，从而进一步节省码位。

公开(公告)号：US08930200B2

公开(公告)日：2015-01-06

申请号：US13950018

申请日：2013-07-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fuwei Ma ,  Dejun Zhang ,  Lei Miao ,  Fengyan Qi

IPC: G10L19/00 ,  G10L21/00 ,  G10L13/00 ,  G10L19/04 ,  G10L19/038 ,  G10L19/107

CPC classification number: G10L19/038 ,  G01L19/12 ,  G10L19/04 ,  G10L19/107 ,  G10L19/12 ,  G10L21/00 ,  G10L2019/0005

Abstract: A vector joint encoding/decoding method and a vector joint encoder/decoder are provided, more than two vectors are jointly encoded, and an encoding index of at least one vector is split and then combined between different vectors, so that encoding idle spaces of different vectors can be recombined, thereby facilitating saving of encoding bits, and because an encoding index of a vector is split and then shorter split indexes are recombined, thereby facilitating reduction of requirements for the bit width of operating parts in encoding/decoding calculation.

Abstract translation: 提供了向量联合编码/解码方法和向量联合编码器/解码器，联合编码了两个以上的向量，并且将至少一个向量的编码索引分离，然后在不同向量之间组合，使得编码不同的空闲空间 可以重新组合向量，从而有助于节省编码比特，并且由于矢量的编码索引被分离，并且随后更短的分割索引被重新组合，从而有助于减少编码/解码计算中的操作部分的比特宽度的要求。

公开(公告)号：US20140229169A1

公开(公告)日：2014-08-14

申请号：US14252382

申请日：2014-04-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fuwei Ma ,  Dejun Zhang ,  Minjie Xie ,  Qing Zhang

IPC: G10L19/04 ,  G10L19/002

CPC classification number: G10L19/113 ,  G10L19/002 ,  G10L19/04 ,  G10L19/10 ,  G10L19/12 ,  G10L2019/0016 ,  H03M7/30 ,  H03M7/40 ,  H03M7/4068

Abstract: The present invention discloses a method and a device for pulse encoding, and a method and a device for pulse decoding. The method for pulse encoding includes: calculating an index value of an input pulse; selecting an adjustment threshold value according to the number of pulses, and comparing the index value of the pulse with the adjustment threshold value; if the index value is smaller than the adjustment threshold value, adopting the first number of encoding bits to encode the index value, if the index value is not smaller than the adjustment threshold value, adopting the second number of encoding bits to encode the index value plus an offset value, where the first number is smaller than the second number, the first number and the second number are both positive integers, and the offset value is greater than or equal to the adjustment threshold value.

Abstract translation: 本发明公开了一种用于脉冲编码的方法和装置，以及用于脉冲解码的方法和装置。 脉冲编码方法包括：计算输入脉冲的指标值; 根据所述脉冲数选择调整阈值，并将所述脉冲的指标值与所述调整阈值进行比较; 如果索引值小于调整阈值，则采用第一数量的编码比特来对索引值进行编码，如果索引值不小于调整阈值，则采用第二数量的编码比特来对索引值进行编码 加上偏移值，其中第一个数字小于第二个数字，第一个数字和第二个数字都是正整数，偏移量大于或等于调整阈值。

公开(公告)号：US11973987B2

公开(公告)日：2024-04-30

申请号：US17369408

申请日：2021-07-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Vladyslav Zakharchenko ,  Dejun Zhang ,  Kangying Cai ,  Jianle Chen

IPC: H04N19/70 ,  H04N19/17 ,  H04N19/597 ,  H04N19/85

CPC classification number: H04N19/70 ,  H04N19/17 ,  H04N19/597 ,  H04N19/85

Abstract: A method of point cloud coding (PCC) implemented by a decoder is provided. The method includes receiving, by a receiver of the decoder, a bitstream containing a patch rotation enabled flag and atlas information for a two dimensional (2D) patch; determining, by a processor of the decoder, that the 2D patch is capable of being rotated based on the patch rotation enabled flag; rotating, by the processor, the 2D patch; and reconstructing, by the processor, a three dimensional (3D) image using the atlas information and the 2D patch as rotated.