Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1995-02-16
1997-05-06
Allen, Stephone
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
25055903, 25055922, 356376, G01B 11124
Patent
active
056273630
ABSTRACT:
A system and method for creating a three-dimensional image of an opaque object utilize frequency diverse coherent illumination in combination with an opacity constraint in performing three-dimensional phase retrieval and/or profile retrieval. An opaque object is one which exhibits only surface scattering and no volume scattering over volumes that extend beyond the desired range resolution. The system and method require only Fourier intensity information to create a three-dimensional image which avoids the difficulties associated with prior art systems and methods requiring phase information to produce similar images. Furthermore, the system and method of the present invention do not require imaging optics, precise alignment of optical components, or precise phase stability of the coherent illumination source.
REFERENCES:
"Signal Recovery and Synthesis III 1989 Technical Digest Series", vol. 15, paper for Optical Society of America Meeting held Jun. 1989.
"Imaging Correlography With Sparse Arrays of Detectors", J.R. Fienup & Paul S. Idell, Article from Optical Engineering, Sep., 1988, vol. 27 No. 9, pp. 778-784.
"Use of an opacity constraint in three-dimensional imaging", in Inverse Optics III, Proceeding of the SPIE 2241-14, Orlando, Fl (Apr., 1994), by Richard G. Paxman et al.
"Improved bounds on object support from autocorrelation support and application to phase retrieval", T.R. Crimmins et al., Journal of the Optical Society of America, 1990.
"Use of an Opacity Constraint in Three-Dimensional Imaging", R.G. Paxman et al., presented in SPIE conference Apr., 1994.
Marron Joseph C.
Paxman Richard G.
Allen Stephone
Environmental research Institute of Michigan
LandOfFree
System and method for three-dimensional imaging of opaque object does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for three-dimensional imaging of opaque object, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for three-dimensional imaging of opaque object will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2134284