Articles with "local gradient" as a keyword



Local gradient optimization of leakage-suppressing entangling sequences

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Published in 2021 at "Physical Review A"

DOI: 10.1103/physreva.103.012609

Abstract: We use a gradient-based optimization scheme to find single-qubit rotations to be interwoven between time steps of a noisy logical two-qubit entangling gate in order to suppress the effects of arbitrary logical and leakage noise… read more here.

Keywords: optimization; leakage; two qubit; local gradient ... See more keywords
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Grayscale-Inversion and Rotation Invariant Texture Description Using Sorted Local Gradient Pattern

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Published in 2018 at "IEEE Signal Processing Letters"

DOI: 10.1109/lsp.2018.2809607

Abstract: This letter introduces a novel grayscale-inversion and rotation invariant descriptor, called sorted local gradient pattern, for texture classification. First, we propose two complementary local gradient patterns (LGP), the center-to-ring LGP (LGP_CR) and the ring-to-ring LGP… read more here.

Keywords: gradient; grayscale inversion; local gradient; inversion rotation ... See more keywords
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Local Gradient Hexa Pattern: A Descriptor for Face Recognition and Retrieval

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Published in 2022 at "IEEE Transactions on Circuits and Systems for Video Technology"

DOI: 10.1109/tcsvt.2016.2603535

Abstract: Local descriptors used in face recognition are robust in a sense that these descriptors perform well in varying pose, illumination, and lighting conditions. The accuracy of these descriptors depends on the precision of mapping the… read more here.

Keywords: recognition; face recognition; local gradient; gradient hexa ... See more keywords