公开(公告)号：US20240430414A1

公开(公告)日：2024-12-26

申请号：US18212887

申请日：2023-06-22

Applicant: ATI TECHNOLOGIES ULC

Inventor： Ying Luo ,  Razvan Florin Dan-Dobre ,  Min Wang ,  Edward Harold

IPC: H04N19/117 ,  H04N19/105 ,  H04N19/139 ,  H04N19/156 ,  H04N19/172 ,  H04N19/513 ,  H04N19/80

Abstract: Techniques for implementing adaptive interpolation filter search in video encoding are disclosed. Conventional interpolation filter searching is simplified to implement adaptive interpolation filter search by selecting one or more first filter types to determine one or more initial interpolation costs. After identifying an MV that produces a target interpolation error for one of the one or more first filter types, one or more secondary interpolation costs are calculated for one or more additional filter types based on the identified MV, and one of the one or more first filter type and one or more additional filter types that results in minimal interpolation error is selected as the interpolation filter type.

公开(公告)号：US20240223768A1

公开(公告)日：2024-07-04

申请号：US18089928

申请日：2022-12-28

Applicant: ATI TECHNOLOGIES ULC

Inventor： Yuxin Chen ,  Ying Luo ,  Edward Harold ,  Shu-Hsien Wu ,  Xinghai Li ,  Razvan F. Dan-Dobre ,  Min Wang ,  Jianbin Xiao ,  Amal Khailtash ,  Yin Xia Yang ,  Kai Sun

IPC: H04N19/137 ,  H04N19/105 ,  H04N19/176 ,  H04N19/53

CPC classification number: H04N19/137 ,  H04N19/105 ,  H04N19/176 ,  H04N19/53

Abstract: The present disclosure provides techniques for implementing a hierarchical and partitional integer motion estimation search (IMES) architecture using a search engine that is configurable based on a content of a plurality of frames in a video sequence. For example, the techniques include identifying, based on the plurality of frames, one or more search parameters for the hierarchical and partitional motion estimation, where the one or more search parameters are based on a content indicative of motion features tracked across the video sequence. The hierarchical and partitional motion estimation, which includes at least one decimated motion estimation search followed by a full-pixel level search, is performed based on the one or more identified search parameters to determine an integer (or pixel-level) motion vector.