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Local feature point extraction for quantum images

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Publication details

JournalQuantum Information Processing
DateE-pub ahead of print - 30 Sep 2014
DatePublished (current) - 2015
Number of pages16
Early online date30/09/14
Original languageEnglish


Quantum image processing has been a hot issue in the last decade. However, the lack of the quantum feature extraction method leads to the limitation of quantum image understanding. In this paper, a quantum feature extraction framework is proposed based on the novel enhanced quantum representation of digital images. Based on the design of quantum image addition and subtraction operations and some quantum image transformations, the feature points could be extracted by comparing and thresholding the gradients of the pixels. Different methods of computing the pixel gradient and different thresholds can be realized under this quantum framework. The feature points extracted from quantum image can be used to construct quantum graph. Our work bridges the gap between quantum image processing and graph analysis based on quantum mechanics.

    Research areas

  • Quantum image, Feature extraction, Quantum adder, Quantum image transformation

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