Improving Compression Efficiency using an Encoder-aware Motion Compensated Temporal Filter

Motion Compensated Temporal Filtering (MCTF) is a pre-processing approach employed prior to video encoding, for improving the compression efficiency. Prior MCTF designs (e.g. [1]) use pre-defined frame-level quantization parameters (QPs) for different slice types and temporal layers, and operate wit...

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Bibliographic Details
Main Authors: Vanam, Rahul, Sethuraman, Sriram
Format: Conference Proceeding
Language:English
Subjects:
Complexity theory
Data compression
Encoding
Filtering
Quantization (signal)
Online Access:Request full text
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Description
Summary:Motion Compensated Temporal Filtering (MCTF) is a pre-processing approach employed prior to video encoding, for improving the compression efficiency. Prior MCTF designs (e.g. [1]) use pre-defined frame-level quantization parameters (QPs) for different slice types and temporal layers, and operate with a fixed Group of Pictures (GOP) structure. However, commercial encoders can adapt GOP structure based upon content characteristics, and can also adapt QPs on a block-basis based upon the frequency of the block being referenced and the spatial complexity of the block, causing prior MCTF to perform sub-optimally with commercial encoders.
ISSN:2375-0359
DOI:10.1109/DCC55655.2023.00085