S
Simon Liao
Researcher at University of Winnipeg
Publications - 57
Citations - 2114
Simon Liao is an academic researcher from University of Winnipeg. The author has contributed to research in topics: Velocity Moments & Zernike polynomials. The author has an hindex of 15, co-authored 55 publications receiving 2016 citations.
Papers
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Image analysis by moments
Miroslaw Pawlak,Simon Liao +1 more
TL;DR: The detailed error analysis involved in the moment method is discussed and several new techniques to increase the accuracy and efficiency of moment descriptor are proposed for image reconstruction from the orthogonal Legendre moments computed from discrete and noisy data.
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On image analysis by moments
Simon Liao,Miroslaw Pawlak +1 more
TL;DR: In this article, a detailed error analysis involved in the moment method is discussed and several new techniques to increase the accuracy and efficiency of moment descriptor are proposed for image reconstruction from the orthogonal Legendre moments computed from discrete and noisy data.
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On the accuracy of Zernike moments for image analysis
Simon Liao,Miroslaw Pawlak +1 more
TL;DR: It is found that there is an inherent limitation in the precision of computing the Zernike moments due to the geometric nature of a circular domain.
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Accurate Computation of Zernike Moments in Polar Coordinates
TL;DR: The algorithm, based on the introduced polar pixel tiling scheme, does not exhibit the geometric error and numerical integration error which are inherent in conventional methods based on Cartesian coordinates, which yields a dramatic improvement of the Zernike moments accuracy in terms of their reconstruction and invariance properties.
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Circularly orthogonal moments for geometrically robust image watermarking
TL;DR: Simulation results show that the embedded information can be decoded at low error rates, robust against image rotation, scaling, flipping, as well as a variety of other common manipulations such as lossy compression, additive noise and lowpass filtering.