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29th Meeting: by teleconference, DE, January 2023 2023-01-16 20:14
[AHG9] On Neural Network Post Filter Patch Size
Authors: Sachin Deshpande Sharp A. Sidiya Sharp Miska M. Hannuksela Nokia Ye-Kui Wang ByteDance
Abstract
This document is a follow-up to JVET-AC0062 Proposal 1. It is proposed to signal syntax elements nnpfc_patch_width_minus1 and nnpfc_patch_height_minus1 only when nnpfc_constant_patch_size is equal to 1 and to signal two different syntax elements (nnpfc_extended_patch_width_cd_delta_minus1 and nnpfc_extended_patch_height_cd_delta_minus1) when nnpfc_constant_patch_size is equal to 0. Accordingly, the semantics are changed, to clarify that, when nnpfc_constant_patch_size is equal to 0, the requirement is that the width and height of an extended patch (i.e., a patch plus the overlapping area), not that of a patch, shall be a positive integer multiple of a horizontal and vertical common divisor, respectively. Additionally, it is proposed to move the syntax element nnpfc_overlap up.
Meeting Notes
JVET-AC0344 [AHG9] On Neural Network Post Filter Patch Size [S. Deshpande, A. Sidiya (Sharp), M.M. Hannuksela (Nokia), Y.-K. Wang (Bytedance)] [late]

This document is a follow-up to JVET-AC0062 Proposal 1. It is proposed to signal syntax elements nnpfc_patch_width_minus1 and nnpfc_patch_height_minus1 only when nnpfc_constant_patch_size is equal to 1 and to signal two different syntax elements (nnpfc_extended_patch_width_cd_delta_minus1 and nnpfc_extended_patch_height_cd_delta_minus1) when nnpfc_constant_patch_size is equal to 0. Accordingly, the semantics are changed, to clarify that, when nnpfc_constant_patch_size is equal to 0, the requirement is that the width and height of an extended patch (i.e., a patch plus the overlapping area), not that of a patch, shall be a positive integer multiple of a horizontal and vertical common divisor, respectively. Additionally, it is proposed to move the syntax element nnpfc_overlap up.

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._JVET-AC0344-v1.docx JVET-AC0344-v1.docx
Decisions
This document is a follow-up to JVET-AC0062 Proposal 1. It is proposed to signal syntax elements nnpfc_patch_width_minus1 and nnpfc_patch_height_minus1 only when nnpfc_constant_patch_size is equal to 1 and to signal two different syntax elements (nnpfc_extended_patch_width_cd_delta_minus1 and nnpfc_extended_patch_height_cd_delta_minus1) when nnpfc_constant_patch_size is equal to 0. Accordingly, the semantics are changed, to clarify that, when nnpfc_constant_patch_size is equal to 0, the requirement is that the width and height of an extended patch (i.e., a patch plus the overlapping area), not that of a patch, shall be a positive integer multiple of a horizontal and vertical common divisor, respectively. Additionally, it is proposed to move the syntax element nnpfc_overlap up.
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