公开(公告)号：US20130021177A1

公开(公告)日：2013-01-24

申请号：US13622207

申请日：2012-09-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fuwei MA ,  Dejun ZHANG

IPC: H03M7/40

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：US20210201540A1

公开(公告)日：2021-07-01

申请号：US17205100

申请日：2021-03-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dejun ZHANG ,  Tian WANG ,  Vladyslav ZAKHARCHENKO

IPC: G06T9/00 ,  H04N19/172

Abstract: A point cloud encoding method is provided to improve coding efficiency. The method includes: obtaining global matched patches in N frames of point clouds in a point cloud group; determining M union patch occupancy maps corresponding to M sets, where a union patch occupancy map corresponding to an mth set is a union set of occupancy maps of all global matched patches in the mth set; packing the M union patch occupancy maps to obtain a global occupancy map; packing each of the N frames of point clouds to obtain occupancy maps of the N frames of point clouds; and encoding the N frames of point clouds based on the occupancy maps of the N frames of point clouds.

公开(公告)号：US20180190304A1

公开(公告)日：2018-07-05

申请号：US15853690

申请日：2017-12-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fuwei Ma ,  Dejun ZHANG

IPC: G10L19/107 ,  G10L19/008 ,  G10L19/002 ,  G10L19/12 ,  G10L19/00 ,  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：US20170053657A1

公开(公告)日：2017-02-23

申请号：US15338098

申请日：2016-10-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fuwei MA ,  Dejun ZHANG

IPC: G10L19/107 ,  G10L19/002 ,  G10L19/008

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：US20150155882A1

公开(公告)日：2015-06-04

申请号：US14617585

申请日：2015-02-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fuwei MA ,  Dejun ZHANG

IPC: H03M7/30

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.

Abstract translation: 本文公开了一种编码方法，解码方法，编码器和解码器。 一种编码方法包括：在轨道上获取要编码的脉冲的脉冲分布; 根据脉冲分布确定用于识别脉冲分布的分布标识符; 以及生成包括所述分发标识符的编码索引。 解码方法包括：接收编码索引; 从所述编码索引获得分布标识符，其中所述分发标识符被配置为在轨道上识别要在所述轨道上编码的脉冲的脉冲分布; 根据分布标识符确定在轨道上要编码的所有脉冲的轨道上的脉冲分布; 并根据脉冲分布重建轨道上的脉冲顺序。