Methods › Computer Vision › Image Data Augmentation › GridMask
GridMask
Introduced by Pengguang Chen et al. in GridMask Data Augmentation
archive 2025-07-28 Description, source and code snippet are the archive's method entry.
GridMask is a data augmentation method that randomly removes some pixels of an input image. Unlike other methods, the region that the algorithm removes is neither a continuous region nor random pixels in dropout. Instead, the algorithm removes a region with disconnected pixel sets, as shown in the Figure.
We express the setting as
𝐱̃=𝐱 ×M
where 𝐱 ∈R^(H ×W ×C) represents the input image, M ∈ {0,1}^(H ×W) is the binary mask that stores pixels to be removed, and 𝐱̃ ∈R^(H ×W ×C) is the result produced by the algorithm. For the binary mask M, if M_(i, j)=1 we keep pixel (i, j) in the input image; otherwise we remove it. GridMask is applied after the image normalization operation.
The shape of M looks like a grid, as shown in the Figure . Four numbers (r, d, δₓ, δ_y) are used to represent a unique M. Every mask is formed by tiling the units. r is the ratio of the shorter gray edge in a unit. d is the length of one unit. δₓ and δ_y are the distances between the first intact unit and boundary of the image.
Papers archive 2025-07-28
3 shown of 3, newest first. Repository counts are the archive's code-links table. A Syntology line states what Syntology ran from that paper's harvested code; it is per sample and not a correctness claim.
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TC-SKNet with GridMask for Low-complexity Classification of Acoustic scene 5 Oct 2022 · 0 repositories · arXiv:2210.02287
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Instance Segmentation Challenge Track Technical Report, VIPriors Workshop at ICCV 2021: Task-Specific Copy-Paste Data Augmentation Method for Instance Segmentation 1 Oct 2021 · 1 repository · arXiv:2110.00470
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GridMask Data Augmentation 13 Jan 2020 · 7 repositories · arXiv:2001.04086
Tasks archive 2025-07-28
10 tasks the archive attaches to papers tagged with this method, by distinct papers. A task without a page in the catalog is plain text.
Usage over time archive 2025-07-28
Components: the archive holds no method-to-method composition, so PwC's Components table cannot be rebuilt; the Papers list carries no Results column for the same reason (the archive does not join its leaderboard rows to method tags).
Categories archive 2025-07-28
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