公开(公告)号：US10778993B2

公开(公告)日：2020-09-15

申请号：US16014856

申请日：2018-06-21

Applicant: MediaTek Inc.

Inventor： Xin Wang ,  Lulin Chen ,  Shuai Zhao

IPC: H04N13/00 ,  H04N19/169 ,  H04N19/33 ,  H04N19/89 ,  H04N19/31 ,  H04N21/2343 ,  H04N21/4223 ,  H04N19/503 ,  H04N19/88 ,  H04N19/597 ,  H04N21/81 ,  H04N9/47

Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to derive a composite track. Three-dimensional video data includes a plurality of two-dimensional sub-picture tracks associated with a viewport. A composite track derivation for composing the plurality of two-dimensional sub-picture tracks for the viewport includes data indicative of the plurality of two-dimensional sub-picture tracks belonging to a same group, placement information to compose sample images from the plurality of two-dimensional tracks into a canvas associated with the viewport, and a composition layout operation to adjust the composition if the canvas comprises a composition layout created by two or more of the plurality of two-dimensional sub-picture tracks composed on the canvas. The composite track derivation can be encoded and/or used to decode the three-dimensional video data.

公开(公告)号：US10602239B2

公开(公告)日：2020-03-24

申请号：US15928823

申请日：2018-03-22

Applicant: MEDIATEK INC.

Inventor： Lulin Chen ,  Xin Wang ,  Shuai Zhao ,  Wang Lin Lai

IPC: H04N21/854 ,  G06F16/78 ,  H04N5/265 ,  H04N5/262 ,  H04N5/272 ,  G11B27/031 ,  H04N21/431

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 for visual track composition from multiple visual tracks. The visual track composition includes alpha compositing, and can include spatial compositing and background compositing. The processing circuitry is configured to parse the metadata to extract configuration information for the visual track composition. Further, the processing circuitry receives a first sample from a first visual track and a second sample from a second visual track, and combines the first sample with the second sample to generate a composite sample based on the configuration information for the visual track composition.

公开(公告)号：US20180376152A1

公开(公告)日：2018-12-27

申请号：US16014856

申请日：2018-06-21

Applicant: MediaTek Inc.

Inventor： Xin Wang ,  Lulin Chen ,  Shuai Zhao

IPC: H04N19/169 ,  H04N19/33 ,  H04N19/89 ,  H04N19/503 ,  H04N21/2343 ,  H04N21/4223 ,  H04N19/31

Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to derive a composite track. Three-dimensional video data includes a plurality of two-dimensional sub-picture tracks associated with a viewport. A composite track derivation for composing the plurality of two-dimensional sub-picture tracks for the viewport includes data indicative of the plurality of two-dimensional sub-picture tracks belonging to a same group, placement information to compose sample images from the plurality of two-dimensional tracks into a canvas associated with the viewport, and a composition layout operation to adjust the composition if the canvas comprises a composition layout created by two or more of the plurality of two-dimensional sub-picture tracks composed on the canvas. The composite track derivation can be encoded and/or used to decode the three-dimensional video data.

公开(公告)号：US20180279014A1

公开(公告)日：2018-09-27

申请号：US15928823

申请日：2018-03-22

Applicant: MEDIATEK INC.

Inventor： Lulin CHEN ,  Xin Wang ,  Shuai Zhao ,  Wang Lin Lai

IPC: H04N21/854 ,  G06F17/30 ,  H04N5/262 ,  G11B27/031 ,  H04N21/431

CPC classification number: H04N21/854 ,  G06F16/78 ,  G11B27/031 ,  H04N5/262 ,  H04N5/2624 ,  H04N5/265 ,  H04N5/272 ,  H04N21/431 ,  H04N21/85406

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 for visual track composition from multiple visual tracks. The visual track composition includes alpha compositing, and can include spatial compositing and background compositing. The processing circuitry is configured to parse the metadata to extract configuration information for the visual track composition. Further, the processing circuitry receives a first sample from a first visual track and a second sample from a second visual track, and combines the first sample with the second sample to generate a composite sample based on the configuration information for the visual track composition.