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Non-CE3: Simplified MIP with reduced memory footprint
Abstract
This contribution proposes to reduce the MIP memory footprint by 50% with low impact on coding performance. The number of stored matrices is significantly reduced, keeping only four matrices per MipSizeId. The retained matrices are aligned to the same offset value, which enables to simplify the specification. To keep matrix diversity, it is proposed to generalize input vector transposition. In order to simplify the prediction process, the transposition information is explicitly derived from signalling which enables to remove some logic. The performance of the proposed design has been assessed on CTC, Low-QP and external datasets (Open-Images/DIV2K), showing negligible losses.
JVET-P0194 CE3-related: Simplified MIP with reduced memory footprint [T. Biatek, A.K. Ramasubramonian, G. Van Der Auwera, M. Karczewicz (Qualcomm)]
This contribution proposes to reduce the MIP memory footprint by 50% with low impact on coding performance. The number of stored matrices is significantly reduced, keeping only four matrices per MipSizeId. The retained matrices are aligned to the same offset value, which enables to simplify the specification. To keep matrix diversity, it is proposed to generalize input vector transposition. In order to simplify the prediction process, the transposition information is explicitly derived from signalling which enables to remove some logic. The performance of the proposed design has been assessed on CTC, Low-QP and external datasets (Open-Images/DIV2K), showing negligible losses.
See the notes for the joint proposal JVET-P0803
References:
Cited:
PATENTS:
20210385463
0.34
4138045
0.33
WO/2020/047338
0.32
20210213973
0.31
20210240818
0.30
11811637
0.28
WO/2021/158313
0.27
20230068386
0.26
Decisions
See the notes for the joint proposal JVET-P0803
Citation