Y
Yi Zhang
Researcher at National University of Defense Technology
Publications - 17
Citations - 886
Yi Zhang is an academic researcher from National University of Defense Technology. The author has contributed to research in topics: Quantum algorithm & Quantum walk. The author has an hindex of 7, co-authored 17 publications receiving 623 citations.
Papers
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Journal ArticleDOI
NEQR: a novel enhanced quantum representation of digital images
TL;DR: Performance comparisons with FRQI reveal that NEQR can achieve a quadratic speedup in quantum image preparation, increase the compression ratio of quantum images by approximately 1.5X, and retrieve digital images from quantum images accurately.
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A novel quantum representation for log-polar images
TL;DR: Performance comparison with classical brute-force image registration method reveals that the proposed quantum algorithm can achieve a quartic speedup.
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Local feature point extraction for quantum images
TL;DR: A quantum feature extraction framework is proposed based on the novel enhanced quantum representation of digital images that bridges the gap between quantum image processing and graph analysis based on quantum mechanics.
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QSobel: A novel quantum image edge extraction algorithm
Yi Zhang,Kai Lu,Yinghui Gao +2 more
TL;DR: It is demonstrated that QSobel can extract edges in the computational complexity of O(n2) for a FRQI quantum image with a size of 2n × 2n, which would resolve the real-time problem of image edge extraction.
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An Optimized Quantum Representation for Color Digital Images
TL;DR: An optimized quantum representation for color digital images (OCQR) is proposed, which makes full use of quantum superposition characteristic to store the RGB value of every pixel.