Articles with "zernike" as a keyword



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A new Zernike moments based technique for camera identification and forgery detection

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Published in 2017 at "Signal, Image and Video Processing"

DOI: 10.1007/s11760-016-1023-1

Abstract: In multimedia forensics, it is important to identify those images that were captured by a specific camera from a given set of N data images as well as detecting the tampered region in these images… read more here.

Keywords: technique; zernike moments; forgery detection; camera ... See more keywords
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Shape Based Image Retrieval using Lower Order Zernike Moments

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Published in 2017 at "International Journal of Electrical and Computer Engineering"

DOI: 10.11591/ijece.v7i3.pp1651-1660

Abstract: Shape is one of the significant features of Content Based Image Retrieval (CBIR). This paper proposes a strong and successful shape feature, which is based on a set of orthogonal complex moments of images known… read more here.

Keywords: based image; image; order; shape ... See more keywords
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Strehl ratio and amplitude-weighted generalized orthonormal Zernike-based polynomials.

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Published in 2017 at "Applied optics"

DOI: 10.1364/ao.56.002336

Abstract: The concept of orthonormal polynomials is revisited by developing a Zernike-based orthonormal set for a non-circular pupil that is transmitting an aberrated, non-uniform field. We refer to this pupil as a general pupil. The process… read more here.

Keywords: zernike circle; pupil; strehl ratio; zernike based ... See more keywords
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Analytical calibration of slope response of Zernike modes in a Shack-Hartmann wavefront sensor based on matrix product.

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Published in 2022 at "Optics letters"

DOI: 10.1364/ol.452352

Abstract: The Shack-Hartmann wavefront sensor (SH-WFS) is widely used as a slope-based wavefront sensing device. The modal method is favored for wavefront reconstruction from SH-WFS output because of its excellent performance. In this case, the calibration… read more here.

Keywords: slope; shack hartmann; zernike; zernike modes ... See more keywords
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Topology Optimization Design of an Active Deformable Mirror Based on Discrete Orthogonal Zernike Polynomials

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Published in 2022 at "Symmetry"

DOI: 10.3390/sym14112469

Abstract: In order to design an active deformation mirror for projection objective aberration imaging quality control, a topology optimization design method of active deformation mirrors based on discrete orthogonal Zernike polynomials is proposed in this paper.… read more here.

Keywords: topology; topology optimization; mirror; design ... See more keywords
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Epithelium Zernike Indices and Artificial Intelligence Can Differentiate Epithelial Remodeling Between Flap and Flapless Refractive Procedures.

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Published in 2020 at "Journal of refractive surgery"

DOI: 10.3928/1081597x-20200103-01

Abstract: PURPOSE To evaluate epithelial Zernike indices as a differentiator of epithelial remodeling after different refractive procedures. METHODS Optical coherence tomography (OCT) images of 22 laser in situ keratomileusis, 22 small incision lenticule extraction, 15 photorefractive… read more here.

Keywords: epithelial remodeling; zernike; epithelial zernike; zernike indices ... See more keywords