公开(公告)号：US10593122B1

公开(公告)日：2020-03-17

申请号：US15413929

申请日：2017-01-24

Applicant: Amazon Technologies, Inc.

Inventor： Charles Benjamin Franklin Waggoner ,  Yongjun Wu

IPC: G06T19/20 ,  G06T19/00 ,  G06T15/10 ,  G06T7/13

Abstract: Techniques are described that enable a two-dimensional (2D) representation of three-dimensional (3D) virtual reality content to be generated and encoded. These techniques include modifying non-display pixels within the 2D representation to soften the transitions between display pixels and non-display pixels.

公开(公告)号：US10580167B1

公开(公告)日：2020-03-03

申请号：US15620690

申请日：2017-06-12

Applicant: Amazon Technologies, Inc.

Inventor： Charles Benjamin Franklin Waggoner ,  Yongjun Wu

IPC: G06T9/20 ,  G06T15/08 ,  G06T15/50 ,  G06T3/00

Abstract: Techniques are described that enable a two-dimensional (2D) representation of three-dimensional (3D) virtual reality (VR) content to be encoded. These techniques include encoding VR content while excluding non-display pixels of the VR content from motion estimation during encoder processing.

公开(公告)号：US10412412B1

公开(公告)日：2019-09-10

申请号：US15282771

申请日：2016-09-30

Applicant: Amazon Technologies, Inc.

Inventor： Charles Benjamin Franklin Waggoner ,  Yongjun Wu

IPC: H04N19/597 ,  G06T9/00 ,  H04N19/44 ,  H04N19/109 ,  H04N19/172 ,  H04N19/31

Abstract: Techniques are described that enable virtual reality content to be delivered. These techniques include decoding reference frames of video content for non-viewed sections of the video content.

公开(公告)号：US10410376B1

公开(公告)日：2019-09-10

申请号：US15276630

申请日：2016-09-26

Applicant: Amazon Technologies, Inc.

Inventor： Charles Benjamin Franklin Waggoner ,  Yongjun Wu

IPC: H04N5/76 ,  G06T9/00 ,  G06T3/60

Abstract: Techniques are described for decoding portions of image frames for virtual reality (VR) media content. A field of view of a viewer within a VR environment can be determined and used to decode a portion of an image frame that provides image content for that portion. The other portions of the image frame that are not within the image frame can remain non-decoded when not in the visible field of view.

公开(公告)号：US10397518B1

公开(公告)日：2019-08-27

申请号：US15872263

申请日：2018-01-16

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu ,  Charles Benjamin Franklin Waggoner ,  Patrik Schnell

IPC: H04N7/15 ,  H04N19/46 ,  H04N19/174 ,  H04N19/85 ,  G10L19/008 ,  H04N19/40 ,  H04N19/30 ,  H04N19/44

Abstract: Techniques are described by which multiple, independently encoded video streams may be combined into a single decodable video stream. These techniques take advantage of existing features of commonly used video codecs that support the independent encoding of different regions of an image frame (e.g., H.264 slices or HEVC tiles). Instead of including different parts of the same image, each region corresponds to the encoded image data of the frames of one of the independent video streams.

公开(公告)号：US12217770B1

公开(公告)日：2025-02-04

申请号：US17305127

申请日：2021-06-30

Applicant: Amazon Technologies, Inc.

Inventor： Lokesh Amarnath Ravindranathan ,  Kaustav Nandy ,  Manivel Sethu ,  Yongjun Wu ,  Imran Khan ,  Shivam Agarwal ,  Yash Pandya

IPC: G11B27/036 ,  G06T7/70 ,  G06T11/00 ,  G06V10/22 ,  G06V20/40 ,  G06V40/10

Abstract: Some implementations include methods generating visualization emphasis object for players and may include receiving a video clip associated with a sporting event participated by a plurality of players using a playing field with a play object. The players in a frame of the video clip may be detected. Players who are on the playing field may be identified from the detected players. Each of the players identified to be on the playing field may be associated with a rectangular bounding box that provides an outline of each of the players. A player who has possession of the play object may be identified. A visualization emphasis object may be generated and placed on the player who has possession of the play object. The visual emphasis object may have a size proportional to height of a bounding box associated with the player having the possession of the play object.

公开(公告)号：US20240098346A1

公开(公告)日：2024-03-21

申请号：US17854188

申请日：2022-06-30

Applicant: Amazon Technologies, Inc.

Inventor： Abhishek Kumar ,  Yongjun Wu ,  Sitaraman Ganapathy ,  Vasanthakumar Soundararajan ,  Varun Chadha

IPC: H04N21/8547 ,  H04N21/234 ,  H04N21/81 ,  H04N21/845

CPC classification number: H04N21/8547 ,  H04N21/23418 ,  H04N21/812 ,  H04N21/8455

Abstract: Systems and methods described herein provide for novel boundary generation features for interleaving additional content into media content. Media content may be received which includes a video and audio portion. An unencrypted encode of the video portion may be generated. A first set of time stamps for the video portion may be generated using a computer vision algorithm. A second set of time stamps for the video portion may be generated for identifying IDR frames using a first algorithm. A third set of time stamps may be generated to serve as boundaries for interleaving additional content into the media content based on a priority algorithm that uses the first set of time stamps and the second set of time stamps. The video portion may be encoded using the third set of time stamps to determine the IDR frames for the media content.

公开(公告)号：US20240007690A1

公开(公告)日：2024-01-04

申请号：US17854572

申请日：2022-06-30

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu ,  Sitaraman Ganapathy ,  Vasanthakumar Soundararajan ,  Nikhil Sharma

IPC: H04N21/234 ,  H04N21/845 ,  H04N21/81

CPC classification number: H04N21/23424 ,  H04N21/8455 ,  H04N21/812

Abstract: A system for utilizing media content reference point information to perform media content encoding, and supplemental content stitching and/or insertion. Media content can be encoded and packaged based on boundaries of the media content. The boundaries can be received from a third-party and/or generated via an automated process. Target boundaries can be selected based on accuracy levels associated with the received and/or generated boundaries. Supplemental content can be stitched and/or inserted into packaged media content based on audio and video content of the packaged media content being aligned.

公开(公告)号：US11765217B1

公开(公告)日：2023-09-19

申请号：US17443011

申请日：2021-07-19

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu ,  Ravindra Ganti ,  Charles M. Cordova ,  Nicholas Sidwell ,  John F. X. Gaquin

IPC: H04L65/613 ,  H04L65/80 ,  H04L65/65 ,  H04L65/612

CPC classification number: H04L65/613 ,  H04L65/612 ,  H04L65/65 ,  H04L65/80

Abstract: Methods and apparatus are described for providing thinned manifests during a live event. As network usage of a regional internet service provider (ISP) or content delivery network (CDN) becomes unsustainable, new streaming sessions for a live event are provided a thinned manifest that does not have playback options for bitrates above a bitrate limit.

公开(公告)号：US11617010B1

公开(公告)日：2023-03-28

申请号：US16948742

申请日：2020-09-30

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu ,  Charles Benjamin Franklin Waggoner ,  Sitaraman Ganapathy ,  Vasanthakumar Soundararajan ,  Alon Dulce

IPC: H04N21/4402 ,  H04L65/1069 ,  H04N21/438 ,  H04L65/75

Abstract: Methods and apparatus are described that relate to stitching different streams of high dynamic range (HDR) content together and handling HDR metadata mismatches between the differently produced content streams.