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Recent progress in statistical information optics: statistical information processing for optics
SPIE Proceedings, 2013 In this paper, we reviewed our recent work on the statistical information processing for optics including coherence diffraction, mutual coherence tensor, and the associated propagation properties, which we recently proposed and experimentally demonstrated.
Wei Wang, Juan Zhao, Mitsuo Takeda
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The Statistics of Optical Flow
Computer Vision and Image Understanding, 2001Summary: When processing image sequences some representation of image motion must be derived as a first stage. The most often used representation is the optical flow field, which is a set of velocity measurements of image patterns. It is well known that it is very difficult to estimate accurate optical flow at locations in an image which correspond to ...
Cornelia Fermüller +2 more
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On the Spatial Statistics of Optical Flow
International Journal of Computer Vision, 2005We develop a method for learning the spatial statistics of optical flow fields from a novel training database. Training flow fields are constructed using range images of natural scenes and 3D camera motions recovered from handheld and car-mounted video sequences.
Stefan Roth 0001, Michael J. Black
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Statistics of backscattering in optical waveguides
Optics Letters, 2010The statistics of backscattering induced by sidewall roughness in dielectric optical waveguides is experimentally investigated. We demonstrate that waveguide backscattering is a wavelength-dependent random process, whose statistics follows the rules of single scattering systems, independently of shape, size, and refractive index contrast of the ...
MORICHETTI, FRANCESCO +2 more
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Photon Statistics in Adaptive Optics
Optics and Photonics News, 1999ABSTRACT Random aberrations due to atmospheric turbulence determine the angular resolution of ground-based telescopes. Adaptive optics systems compensate the wavefront degradation before detection. Although systems with a large number of subapertures in the wavefront sensor and of actuators in the deformable mirror provide the best results, they are ...
Vidal F. Canales, Manuel P. Cagigal
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Statistical biases in optic flow
Proceedings. 1999 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (Cat. No PR00149), 2003The computation of optical flow from image derivatives is biased in regions of non uniform gradient distributions. A least-squares or total least squares approach to computing optic flow from image derivatives even in regions of consistent flow can lead to a systematic bias dependent upon the direction of the optic flow, the distribution of the ...
Cornelia Fermüller +2 more
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IEEE Transactions on Instrumentation and Measurement, 1999
A new type of light pulses timer allowing a direct locking within the electric oscillation delivered by a clock is presented. The light pulses to be timed cross an electro-optic crystal excited by an oscillating electric field, which modifies the light polarization.
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A new type of light pulses timer allowing a direct locking within the electric oscillation delivered by a clock is presented. The light pulses to be timed cross an electro-optic crystal excited by an oscillating electric field, which modifies the light polarization.
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On the Nonlinear Statistics of Optical Flow
2018In A naturalistic open source movie for optical flow evaluation, Butler et al. create a database of ground-truth optical flow from the computer-generated video Sintel. We study the high-contrast \(3\times 3\) patches from this video, and provide evidence that this dataset is well-modeled by a torus (a nonlinear 2-dimensional manifold).
Henry Adams +4 more
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Optical Systems and Statistical Optics.
1982Abstract : Theoretical and experimental research is being conducted in the field of opto-electronic systems. The goal is to contribute solutions to problems of basic research importance which also have an underlying significance in practical applications that involve automatic pattern recognition and remote sensing.
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Speckle statistics in optical coherence tomography
Journal of the Optical Society of America A, 2005The two previously reported calculations of the amplitude distribution of speckles in optical coherence tomography, each based on a different mathematical formulation, yield different results. We show that a modification of an initial assumption in one of the formulations leads to equivalent results.
Karamata B +3 more
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