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公开(公告)号：JP2003228707A
公开(公告)日：2003-08-15
申请号：JP2002302854
申请日：2002-10-17
Applicant: ST MICROELECTRONICS SA
Inventor： TISSE CHRISTEL-LOIC , BARBEYRAC DAMIEN
Abstract: PROBLEM TO BE SOLVED: To provide a method for coding in frequency, module and phase a digital representation, in the space field, of a ring-shaped element. SOLUTION: The method includes the steps of applying to any point of the element a polar conversion at constant angle, whereby the element is unfolded in rectangular shape; transferring, to the frequency field, any point of the converted rectangular shape by means of a Fourier transform; filtering the discrete data resulting from the transfer by means of at least one real, bidimensional, band-pass filter, oriented along the phase axis; applying a Hilbert transform to the filtering results; applying an inverse Fourier transform to the results of the Hilbert transform; and extracting phase and module information in the space field. COPYRIGHT: (C)2003,JPO
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公开(公告)号：FR2831302A1
公开(公告)日：2003-04-25
申请号：FR0113522
申请日：2001-10-19
Applicant: ST MICROELECTRONICS SA
Inventor： TISSE CHRISTEL LOIC , BARBEYRAC DAMIEN
IPC: G06T7/00 , G06K9/00 , G06K9/48 , G06K9/52 , H04N1/41 , H04N7/30 , G06K9/46 , A61B3/14 , G06F17/14 , G06K9/64
Abstract: Method for frequency, modulation and phase coding of a digital representation of an annular element has the following steps: application (301) of a polar conversion with a constant angle for folding the element into a rectangular shape; transfer into the frequency domain unit a Fourier transform; band-pass filtering of the resultant data; application of a Hilbert transform; application of an inverse Fourier transform; and extraction of phase and modulation data in the spatial domain.
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公开(公告)号：DE60223982T2
公开(公告)日：2008-12-04
申请号：DE60223982
申请日：2002-10-16
Applicant: ST MICROELECTRONICS SA
Inventor： TISSE CHRISTEL-LOIC , BARBEYRAC DAMIEN
Abstract: Method for frequency, modulation and phase coding of a digital representation of an annular element has the following steps: application (301) of a polar conversion with a constant angle for folding the element into a rectangular shape; transfer into the frequency domain unit a Fourier transform; band-pass filtering of the resultant data; application of a Hilbert transform; application of an inverse Fourier transform; and extraction of phase and modulation data in the spatial domain.
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公开(公告)号：DE60223982D1
公开(公告)日：2008-01-24
申请号：DE60223982
申请日：2002-10-16
Applicant: ST MICROELECTRONICS SA
Inventor： TISSE CHRISTEL-LOIC , BARBEYRAC DAMIEN
Abstract: Method for frequency, modulation and phase coding of a digital representation of an annular element has the following steps: application (301) of a polar conversion with a constant angle for folding the element into a rectangular shape; transfer into the frequency domain unit a Fourier transform; band-pass filtering of the resultant data; application of a Hilbert transform; application of an inverse Fourier transform; and extraction of phase and modulation data in the spatial domain.
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