公开(公告)号：WO2021187840A1

公开(公告)日：2021-09-23

申请号：PCT/KR2021/003177

申请日：2021-03-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： LIM, Youngkwon

IPC: H04N19/597 ,  H04N19/184 ,  H04N19/46 ,  G06T9/00 ,  H04N21/2343

Abstract: A decoding device, method, and computer readable medium for partial access metadata for video-based point cloud compression data are disclosed. The decoding device for point cloud decoding includes a communication interface and a processor operably coupled to the communication interface. The communication interface receives a compressed bitstream and metadata related to the compressed bitstream. The processor identifies, in the metadata, region information that indicates a region of a point cloud based on a user perspective; locates a track of the compressed bitstream that corresponds to the region information; identifies, in the track, objects corresponding to the region of the point cloud; and decodes for display of an object, included in the objects identified in the track, that is visible from the user perspective.

公开(公告)号：WO2019074313A1

公开(公告)日：2019-04-18

申请号：PCT/KR2018/012017

申请日：2018-10-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： BOUAZIZI, Imed ,  LIM, Youngkwon

IPC: G06T15/10 ,  G06T15/08 ,  G06F3/01

Abstract: Method and apparatus for encoding, decoding and rendering 3D media content are provided. An apparatus for rendering three-dimensional (3D) media content includes a communication interface configured to receive a multimedia stream, and one or more processors operably coupled to the communication interface, the one or more processors configured to parse the multimedia stream into 2D video bitstreams including geometry frames and texture frames, 2D to 3D conversion metadata for rendering 3D points from 2D frames, and scene description metadata describing 6 degree of freedom (6DoF) relationships among objects in a 6DoF scene, decode the 2D video streams including geometry data and texture data to generate 2D pixel data, covert the 2D pixel data into 3D voxel data using the 2D to 3D conversion metadata; and generate the 6DoF scene from 3D voxel data using the scene description metadata.

公开(公告)号：WO2022235084A1

公开(公告)日：2022-11-10

申请号：PCT/KR2022/006422

申请日：2022-05-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： LIM, Youngkwon

IPC: H04N21/4627 ,  H04N21/434 ,  H04N21/435 ,  H04N21/254 ,  H04N21/235

Abstract: A decoding device includes a communication interface and a processor operably coupled to the communication interface. The communication interface receives at least a portion of a broadcast stream including media data, which includes media samples. The processor identifies information elements containing DRM processing information in the broadcast stream. Each information element is associated with a respective one media sample of the media data. For each information element, the processor also identifies the one media sample that is associated with the information element. The processor further identifies, based on the information element, the DRM processing information for the one media sample. In addition, the processor decodes the one media sample based on the DRM processing information.

公开(公告)号：WO2017069486A1

公开(公告)日：2017-04-27

申请号：PCT/KR2016/011689

申请日：2016-10-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： LIM, Youngkwon

IPC: H04N19/70 ,  H04N19/169 ,  H04N21/2343 ,  H04N21/236 ,  H04N19/46

CPC classification number: H04L47/34 ,  H04L65/4069 ,  H04L65/4084 ,  H04L65/602 ,  H04L65/607 ,  H04N19/44

Abstract: A method and apparatus for randomly accessing high efficiency video coding (HEVC) bitstream for moving picture experts group (MPEG) media transport (MMT). The method includes receiving a plurality of packets for a video in decoding order. The method also includes determining a packet marked to begin processing the video, removing packets of leading pictures in the marked packet from the memory, and processing the packets remaining in the memory.

Abstract translation: 用于随机访问运动图像专家组（MPEG）媒体传输（MMT）的高效视频编码（HEVC）比特流的方法和设备。 该方法包括以解码顺序接收视频的多个分组。 该方法还包括确定标记为开始处理视频的分组，从存储器中去除标记分组中的前导图片的分组，并处理留在存储器中的分组。

公开(公告)号：WO2022225301A1

公开(公告)日：2022-10-27

申请号：PCT/KR2022/005598

申请日：2022-04-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： LIM, Youngkwon

IPC: H04N19/46 ,  H04N19/42 ,  H04N19/44 ,  H04N19/85 ,  H04N19/176

Abstract: A video decoding device includes a communication interface and a processor operably coupled to the communication interface. The communication interface is configured to receive an input elementary bitstream including a plurality of essential video coding (EVC) slices. The processor is configured to modify the plurality of EVC slices in the input elementary bitstream, and rewrite parameters of the input elements stream based on the modified plurality of EVC slices. The communication interface is further configured to transmit an output elementary bitstream with the modified plurality of EVC slices and the rewritten parameters.

公开(公告)号：WO2022075666A1

公开(公告)日：2022-04-14

申请号：PCT/KR2021/013501

申请日：2021-10-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： LIM, Youngkwon

IPC: H04N19/119 ,  H04N19/184 ,  H04N19/44 ,  H04N19/105 ,  H04N19/70 ,  H04N19/117 ,  H04N21/2343

Abstract: An includes a decoding device for fast and efficient access of the slices in a file containing an encoded video. The decoding device includes a communication interface and a processor operably coupled to the communication interface. The communication interface is configured to receive a compressed bitstream. The processor determines one or more slices of the compressed bitstream to decode, in a component track. The processor also identifies a track reference in a configuration record of the component track, wherein the track reference indicates a track that is separate from the component track and the track includes parameter sets required to process the one or more slices. The processor further decodes for display the one or more slices using the parameter sets included in the indicated track.

公开(公告)号：WO2020071811A1

公开(公告)日：2020-04-09

申请号：PCT/KR2019/012953

申请日：2019-10-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： LIM, Youngkwon

IPC: H04N21/2343 ,  H04N21/236 ,  H04N21/81 ,  G06T9/00 ,  G06T15/04 ,  G06T15/10

Abstract: An electronic device, non-transitory computer readable medium and a method for point cloud compression (PCC) is provided. The method includes receiving a PCC stream; mapping the PCC stream to a plurality of video ISO base media file format (ISOBMFF) streams; generating a ISOBMFF elementary stream including configuration information indicating a logical grouping of the plurality of video ISOBMFF streams into the PCC stream; and transmitting the ISOBMFF elementary stream and the plurality of video ISOBMFF streams to a client device.

公开(公告)号：WO2016129953A1

公开(公告)日：2016-08-18

申请号：PCT/KR2016/001440

申请日：2016-02-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： LIM, Youngkwon

IPC: H04N19/40 ,  H04N21/4408 ,  H04N21/234

CPC classification number: H04N21/2381 ,  H04N21/23406 ,  H04N21/234309 ,  H04N21/2353 ,  H04N21/23605 ,  H04N21/2362 ,  H04N21/4343 ,  H04N21/4345 ,  H04N21/44004 ,  H04N21/440218 ,  H04N21/8547

Abstract: A method and an apparatus for converting a moving picture expert group (MPEG) media transport (MMT) stream into a MPEG-2 transport stream (TS). The method including applying restrictions to MMTP packets for the MMTP stream. The method also includes converting a presentation time and decoding time from a coordinated universal time (UTC) based absolute time to a program clock reference time (PCR) based value. The method further includes, when converting the MMTP stream to the MPEG-2 TS, constructing the MMTP stream based on MPEG-2 TS rules without adding or removing data by using a hypothetical receiver buffer model (HRBM). Additionally, the method includes determining values of MPEG-2 TS packet fields of a TS packet layer, an adaptation field and Packetized Elementary Stream (PES) packets from values of the MMTP packets.

Abstract translation: 一种用于将运动图像专家组（MPEG）媒体传输（MMT）流转换成MPEG-2传输流（TS）的方法和装置。 该方法包括对MMTP流的MMTP分组应用限制。 该方法还包括将呈现时间和解码时间从基于协调世界时间（UTC）的绝对时间转换为基于节目时钟参考时间（PCR）的值。 该方法还包括当将MMTP流转换为MPEG-2TS时，基于MPEG-2TS规则构建MMTP流，而不通过使用假设接收缓冲模型（HRBM）来添加或去除数据。 此外，该方法包括从MMTP分组的值确定TS分组层的MPEG-2TS分组字段的值，适配字段和分组化基本流（PES）分组的值。

公开(公告)号：WO2022149849A1

公开(公告)日：2022-07-14

申请号：PCT/KR2022/000158

申请日：2022-01-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： LIM, Youngkwon

IPC: H04N19/597 ,  H04N19/184 ,  H04N19/70 ,  G06T9/00

Abstract: An apparatus includes a communication interface and a processor operably coupled to the communication interface. The communication interface receives a plurality of tracks in a compressed bitstream. The processor identifies an atlas track corresponding to a point cloud compression (PCC) component and identifies a first component tracks that is referenced by the atlas track and at least one second component track, the at least one second component track is an alternative version of at least one component track of the first component tracks. The processor also determines a component track for each V3c video component to be used as version of the PCC component among the first component tracks and the at least one second component track. The processor further decodes the PCC component according to the determined component track for the each V3c video component.

公开(公告)号：WO2021206516A1

公开(公告)日：2021-10-14

申请号：PCT/KR2021/004527

申请日：2021-04-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： KOLAN, Prakash Reddy ,  JOSHI, Rajan Laxman ,  BUDAGAVI, Madhukar ,  LIM, Youngkwon

IPC: H04N7/15 ,  H04N7/14 ,  H04N21/81 ,  H04N21/235 ,  H04N21/435

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The disclosure provides a method and device for providing volumetric conversational service.