<p>A coherent radiation imaging system that produces digital images with a reduced amount of speckle. Radiation from a long coherence length source is used to form an image of a sample. The output coherent wave is temporally divided into a plurality of wavelets. The spatial phase of each wavelet is then modulated a known and different amount. Each phase modulated wavelet illuminates the sample and is perturbed by its interaction with the sample. A spatial phase map of each perturbed wavelet is then created and converted to a sample image with an image reconstruction program. The plurality of sample- images thus formed is statistically averaged to form a final averaged image. The high frequency speckle that is not optically resolvable tends to average to zero with continual statistical averaging, leaving only the optically resolvable lower frequency phase information.</p>
申请公布号
WO2005048174(A1)
申请公布日期
2005.05.26
申请号
WO2004US37226
申请日期
2004.11.05
申请人
TECHNOLOGY INNOVATIONS, LLC;PRELEWITZ, DAVID, F.;GRAY, ROBERT;GERCHBERG, ROLF;WEINER, MICHAEL
发明人
PRELEWITZ, DAVID, F.;GRAY, ROBERT;GERCHBERG, ROLF;WEINER, MICHAEL