Video encoding method and apparatus
By employing a time-interleaving calculation method using a folded Hadamard transform circuit, the problem of low hardware utilization in SATD calculations during video coding is solved, achieving more efficient hardware resource utilization and cost reduction.
CN116847082BActive Publication Date: 2026-07-10MEDIATEK INC
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- MEDIATEK INC
- Filing Date
- 2022-05-30
- Publication Date
- 2026-07-10
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Figure CN116847082B_ABST
Abstract
A video encoding method and apparatus for calculating a sum of absolute transformed difference (SATD) through a folded Hadamard transform circuit includes partitioning a current block into SATD blocks, receiving input data associated with a first block of a first SATD block in a first cycle and input data associated with a second block of the first SATD block in a second cycle, and performing a calculation of the first block by a shared Hadamard transform circuit in the first cycle and a calculation of the second block by the shared Hadamard transform circuit in the second cycle. Each shared Hadamard transform circuit is a first portion of each folded Hadamard transform circuit. The video encoding method and apparatus further perform a calculation of an entire SATD block through a final portion of each folded Hadamard transform circuit to generate a final SATD result for the first SATD block for encoding.
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Citation Information
Patent Citations
Method and device for calculating SATD (Sum of Absolute Transformed Difference) in video coding
CN106488236A
Method for fast SATD estimation
US20070198622A1