公开(公告)号：US11139000B2

公开(公告)日：2021-10-05

申请号：US15913738

申请日：2018-03-06

Applicant: MEDIATEK INC.

Inventor： Xin Wang ,  Lulin Chen ,  Wang Lin Lai ,  Shan Liu

IPC: G11B27/32 ,  H04N21/854 ,  H04N21/4728 ,  H04N21/81 ,  G11B27/10 ,  G11B27/34

Abstract: Aspects of the disclosure provide an apparatus that includes interface circuitry and processing circuitry. The interface circuitry is configured to receive signals carrying metadata that associates a region of interest in a first visual view provided by a first visual track with the first visual track and a second visual track that provides a second visual view that is a part of the first visual view. The processing circuitry is configured to parse the metadata, determine, when the region of interest is selected, the second visual track to provide visual data, and generate images for the region of interest based on the visual data from the second visual track.

公开(公告)号：US10742999B2

公开(公告)日：2020-08-11

申请号：US15861503

申请日：2018-01-03

Applicant: MediaTek Inc.

Inventor： Xin Wang ,  Wang Lin Lai ,  Lulin Chen ,  Shan Liu

IPC: H04N19/167 ,  H04N19/172 ,  H04N21/81 ,  H04N21/44 ,  H04N21/6587 ,  H04N21/4728 ,  H04N19/597 ,  H04N19/48

Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to encode or decode a region of interest associated with video data. A spherical region structure is associated with the video data that specifies the region of interest on a sphere, the spherical region structure including a reference point of the region of interest on the sphere, and data indicative of a set of side points, comprising a side point for each side of the region of interest on the sphere. The region of interest in the video data is determined based on the reference point and the set of side points. The video data can be composite video data. The spherical region structure, and/or metadata based on the spherical region structure, can be implicitly or explicitly associated with the video data.

公开(公告)号：US10547879B2

公开(公告)日：2020-01-28

申请号：US15646837

申请日：2017-07-11

Applicant: MEDIATEK INC.

Inventor： Wang Lin Lai ,  Shan Liu

IPC: H04N7/173 ,  H04N21/2343 ,  H04N21/218 ,  H04N21/235 ,  H04N21/435 ,  H04N21/437 ,  H04N21/4402 ,  H04N21/4728 ,  H04N21/81

Abstract: Aspects of the disclosure provide an apparatus that includes an interface circuit, a processing circuit and a display device. The interface circuit is configured to receive media description information of media data. The media data includes a plurality of segment streams having different coverage in spatial domain for video content, the media description information is indicative of the different coverage in spatial domain of the plurality of segment streams. The processing circuit is configured to determine one or more segment streams based on a region of interests for image generation and the different coverage in spatial domain of the plurality of segment streams, select segments in the one or more segment streams, and cause the interface circuit to request and receive the selected segments. The display device is configured to display images generated based on the selected segments.

公开(公告)号：US20180109817A1

公开(公告)日：2018-04-19

申请号：US15730851

申请日：2017-10-12

Applicant: MediaTek Inc.

Inventor： Xin Wang ,  Wang Lin Lai ,  Lulin Chen ,  Shan Liu

IPC: H04N21/235 ,  H04N19/40 ,  H04N19/184 ,  G06T19/00 ,  H04N13/04

CPC classification number: H04N21/2353 ,  G06T19/006 ,  H04N13/388 ,  H04N19/184 ,  H04N19/40 ,  H04N21/234318 ,  H04N21/2365 ,  H04N21/8456 ,  H04N21/854 ,  H04N21/85406

Abstract: A method or system for supporting dynamic construction of a user selected sub-region (e.g., viewport or region of interest) from other sub-regions of a reference media presentation is presented. The components of the reference media presentation are encoded as component tracks. A streaming decoder receives a streaming media file of the reference media presentation and displays an arbitrarily selected sub-region of the reference media presentation. The streaming media file has a derived track that (i) references one or more of the plurality of component tracks and (ii) specifies a set of operations for constructing media samples based on the media samples of the referenced component tracks. The streaming decoder provides media samples for the selected sub-region by retrieving the referenced component tracks and performing the set of operations specified by the derived track.

公开(公告)号：US20180091735A1

公开(公告)日：2018-03-29

申请号：US15709695

申请日：2017-09-20

Applicant: MediaTek Inc.

Inventor： Xin Wang ,  Lulin Chen ,  Wang Lin Lai ,  Shan Liu

IPC: H04N5/232 ,  H04N19/597 ,  G11B27/34

CPC classification number: H04N5/23238 ,  G11B27/34 ,  H04N19/597

Abstract: A method that specifies, signals and uses coding-independent code points (CICP) in processing media contents from multiple media sources is provided. An apparatus implementing the method receives media contents captured by a plurality of media sources in one or more clusters. The apparatus processes the media contents to provide a plurality of coding-independent code points for the plurality of media sources. The apparatus also encodes the media contents to provide at least one elementary stream.

公开(公告)号：US11652903B2

公开(公告)日：2023-05-16

申请号：US17550970

申请日：2021-12-14

Applicant: MediaTek Inc.

Inventor： Lulin Chen ,  Shan Liu ,  Wang Lin Lai

IPC: H04L67/55 ,  H04L65/80 ,  H04L67/02 ,  H04L65/612

CPC classification number: H04L67/55 ,  H04L65/612 ,  H04L65/80 ,  H04L67/02

Abstract: A method and system of multimedia streaming services using DASH (Dynamic Adaptive Streaming over HTTP) are disclosed. According to this method, one or more Push Directives are sent from a client to a server to indicate information related to media data requested. Each Push Directive comprises a Push type including Push-rate and Push-rate Directive includes information associated with a push data rate related to the media data requested. If the Push-rate Directive is received by the server, one or more groups of data for the media data requested are pushed from the server to the client according to the push data rate. According to another method, fragmented MPDS are used, where at least one fragmented MPD omits a MPD header, MPD payload, Period header or Period payload. In yet another method, a status message group includes SharedResourceAllocation message that comprises parameters including bandwidth and pacingRate.

公开(公告)号：US20220109737A1

公开(公告)日：2022-04-07

申请号：US17550970

申请日：2021-12-14

Applicant: MediaTek Inc.

Inventor： Lulin Chen ,  Shan Liu ,  Wang Lin Lai

IPC: H04L67/55 ,  H04L65/612 ,  H04L65/80 ,  H04L67/02

Abstract: A method and system of multimedia streaming services using DASH (Dynamic Adaptive Streaming over HTTP) are disclosed. According to this method, one or more Push Directives are sent from a client to a server to indicate information related to media data requested. Each Push Directive comprises a Push type including Push-rate and Push-rate Directive includes information associated with a push data rate related to the media data requested. If the Push-rate Directive is received by the server, one or more groups of data for the media data requested are pushed from the server to the client according to the push data rate. According to another method, fragmented MPDS are used, where at least one fragmented MPD omits a MPD header, MPD payload, Period header or Period payload. In yet another method, a status message group includes SharedResourceAllocation message that comprises parameters including bandwidth and pacingRate.

公开(公告)号：US20180199042A1

公开(公告)日：2018-07-12

申请号：US15861503

申请日：2018-01-03

Applicant: MediaTek Inc.

Inventor： Xin Wang ,  Wang Lin Lai ,  Lulin Chen ,  Shan Liu

IPC: H04N19/167 ,  H04N19/172

Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to encode or decode a region of interest associated with video data. A spherical region structure is associated with the video data that specifies the region of interest on a sphere, the spherical region structure including a reference point of the region of interest on the sphere, and data indicative of a set of side points, comprising a side point for each side of the region of interest on the sphere. The region of interest in the video data is determined based on the reference point and the set of side points. The video data can be composite video data. The spherical region structure, and/or metadata based on the spherical region structure, can be implicitly or explicitly associated with the video data.

公开(公告)号：US20180048877A1

公开(公告)日：2018-02-15

申请号：US15663932

申请日：2017-07-31

Applicant: MEDIATEK INC.

Inventor： Wang Lin Lai ,  Shan Liu

IPC: H04N13/00

CPC classification number: H04N13/178 ,  H04N13/111 ,  H04N21/816 ,  H04N21/85406

Abstract: Aspects of the disclosure provide an apparatus that includes an interface circuit, a processing circuit, and a display device. The interface circuit is configured to receive media data with video content being structured into one or more tracks corresponding to one or more spatial partitions. The media data includes a correspondence of the one or more tracks to the one or more spatial partitions. The processing circuit is configured to extract the correspondence of the one or more tracks to the one or more spatial partitions, select, from the one or more tracks, one or more covering tracks with spatial partitions covering a region of interest based on the correspondence, and generate images of the region of interest based on the one or more covering tracks. The display device is configured to display the images of the region of interest.

公开(公告)号：US10819907B2

公开(公告)日：2020-10-27

申请号：US16498397

申请日：2018-03-29

Applicant: MEDIATEK INC.

Inventor： Xin Wang ,  Lulin Chen ,  Wang Lin Lai

IPC: H04N5/232 ,  H04N13/178 ,  H04N13/139 ,  H04N21/234 ,  H04N21/236 ,  H04N21/81 ,  H04N21/2343 ,  H04N21/2362 ,  H04N21/2365

Abstract: A video processing method includes receiving a virtual reality (VR) content, encoding visual data obtained from the VR content to generate a part of a coded bitstream, and encapsulating the part of the coded bitstream into ISO Base Media File Format (ISOBMFF) file (s). In one exemplary implementation, the ISOBMFF file (s) may include a timed metadata track associated with a sphere visual track, where the timed metadata track is set to signal that the associated sphere visual track contains at least one spherical region contributed from at least one region visual track. In another exemplary implementation, the ISOBMFF file (s) may include a timed metadata track associated with a region visual track, where the timed metadata track is set to signal that the associated region visual track contributes to at least one spherical region carried in at least one sphere visual track. Further, an associated video processing apparatus is provided.