公开(公告)号：US11778224B1

公开(公告)日：2023-10-03

申请号：US17456766

申请日：2021-11-29

Applicant: Amazon Technologies, Inc.

Inventor： Rahul Vanam ,  Sriram Sethuraman

IPC: H04N19/51 ,  H04N19/176 ,  H04N19/14 ,  H04N19/105

CPC classification number: H04N19/51 ,  H04N19/105 ,  H04N19/14 ,  H04N19/176

Abstract: Techniques are described for pre-processing frames to apply a temporal filter. A P-frame may be temporally filtered based on neighboring reference frames. The temporal filter may be applied to blocks of the P-frame to improve alignment with dependent frames that are encoded based on blocks of the P-frame.

公开(公告)号：US12206886B1

公开(公告)日：2025-01-21

申请号：US18455484

申请日：2023-08-24

Applicant: Amazon Technologies, Inc.

Inventor： Rahul Vanam ,  Sriram Sethuraman

IPC: H04N19/51 ,  H04N19/105 ,  H04N19/14 ,  H04N19/176

Abstract: Techniques are described for pre-processing frames to apply a temporal filter. A P-frame may be temporally filtered based on neighboring reference frames. The temporal filter may be applied to blocks of the P-frame to improve alignment with dependent frames that are encoded based on blocks of the P-frame.

公开(公告)号：US11496738B1

公开(公告)日：2022-11-08

申请号：US17210958

申请日：2021-03-24

Applicant: Amazon Technologies, Inc.

Inventor： Charles Benjamin Waggoner ,  Rahul Vanam

IPC: H04N19/124 ,  H04N19/186 ,  H04N19/176 ,  H04N19/563 ,  G06V20/40 ,  G06T7/11 ,  G06V30/10

Abstract: Embodiments include systems, methods, and computer-readable media for optimized reduced bitrate encoding for text-based content in video frames. Example methods may include determining that a first segment of video content includes a content scene, determining that a second segment of the video content includes text, and determining a first encoder configuration to encode the first segment of video content, where the first encoder configuration includes a first encoding parameter setting. Example methods may include determining a second encoder configuration to encode the second segment of the video content, where the second encoder configuration includes a second encoding parameter setting, encoding the first segment using the first encoder configuration, and encoding the second segment using the second encoder configuration. The first segment may be encoded at a first bitrate that is greater than a second bitrate at which the second segment is encoded.