Invention Grant
- Patent Title: Multiple transforms adjustment stages for video coding
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Application No.: US16368455Application Date: 2019-03-28
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Publication No.: US11647214B2Publication Date: 2023-05-09
- Inventor: Amir Said , Hilmi Enes Egilmez , Marta Karczewicz , Vadim Seregin
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: H04N19/117
- IPC: H04N19/117 ; H04N19/44 ; H04N19/176 ; H04N19/625 ; H04N19/96 ; G06F17/16 ; H04N19/18 ; H04N19/463 ; H04N19/12 ; H04N19/61 ; H04N19/147

Abstract:
A device may perform a first prediction process for a first block of video data to produce a first residual. The device may apply a first transform process to the first residual to generate first transform coefficients for the first block of video data and encode the first transform coefficients. The device may perform a second prediction process for a second block of video data to produce a second residual. The device may determine that a second transform process, which includes the first transform process and at least one of a pre-adjustment operation or a post-adjustment operation, is to be applied to the second residual. The device may apply the first transform process and the pre- or post-adjustment operation to the second residual to generate second transform coefficients for the second block. The coding device may code the first and second transform coefficients.
Public/Granted literature
- US20190306522A1 MULTIPLE TRANSFORMS ADJUSTMENT STAGES FOR VIDEO CODING Public/Granted day:2019-10-03
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