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Abstract: Mathematical
modelal are researched in space domain and frequency domain for
motion-blurred image. Series of dark stripes can be found on spectrums
of motion-blurred images of a vibrating object with high frequency,
which is due to zero value of Bessel function. Adding 2-D Fourier
transform on a vibration-blurred image recorded by CCD, linear stripes
are inspected and located in spectrum images and realize the image
measurement of vibration amplitudes. Measurement results can reach
sub-pixel precision.
Key words: Motion-blurred
image Spectrum Bessel function Stripe Amplitude measuring
CLC No: TB936
TP391
国家自然科学基金(50390063)和博士点基金(20020248048)资助项目.
Received 30102, received in revised form 20030710
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