Workshop on New Approaches to the
Phase Problem for Non-Periodic Objects
May 17-19, 2001, Bldg 50 Auditorium
Lawrence Berkeley National Laboratory



PROGRAM
Links to Viewgraph Presentations in .PDF
(
List of Speakers and Abstracts)
THURSDAY, MAY 17
8:00
Registration

50 Auditorium

8:46
D. Chemla Welcome
8:55
J. Spence Announcement of administrative details: buses, meals etc.
Overview of Topics
O. Saxton - Chair
9.00
J. Fienup Iterative Phase Retrieval - Abstract
9:40
P. Combettes Iterative methods for constrained phase recovery - Abstract
10:20
K. Nugent Propagation-based Phase Measurement - Abstract
11:00
Coffee
R.Glaeser - Chair
11:20
J. Frank Cryo-electron microscopy and 3D reconstruction of single, asymmetric biological molecules - Abstract
12:00
Lunch
2D and 3D Support/Oversampling
M. Isaacson - Chair
1:00
J. Miao Extending X-ray Crystallography to Non-Crystalline Specimens by the Oversampling Method - Abstract
1:40
I. Robinson Imaging the Shapes of Nanocrystals using Coherent X-ray Diffraction - Abstract
2:20
C. Jacobsen 3D imaging of biological specimens with and without optics - Abstract
3:00
Coffee
M.Howells - Chair
3.20
D. Sayre The Oversampling Phasing Method - Abstract
4.00
J. Spence Experimental iterative phase retrieval with coherent electrons - Lensless imaging from diffraction patterns - Abstract
4.40
I. Vartanyants Effect of Partial Coherence on the Reconstruction of Coherent X-ray Diffraction Patterns - Abstract
5:10
Discussion
5.40
END
FRIDAY, MAY 18
Transport of Intensity
Y. Petroff - Chair
8:40 S. Wilkins An overview of phase/amplitude retrieval from x-ray images - Abstract
9:20 D. Paganin Non-interferometric determination of the Aharonov-Bohm phase shift and its application to imaging the magnetic structure of technological materials - Abstract
9:50 Coffee
L.D. Marks - Chair
10:10 T. Gureyev Phase and amplitude retrieval from multi-energy near-field images - Abstract
10:40 V. Volkov Phase Retrieval from two Defocused Images by Fast Fourier Transform and Symmetry Criteria Applied to the Transport-of-Intensity Equation Solution - Abstract
11:10 H. Faulkner Phase retrieval from non-periodic images in the presence of vortices - Abstract
11:40 Lunch
Theory
R. Gerchberg - Chair
1:00  
1:40 R. Luke Optical Wavefront Reconstructon: Numerical Theory - Abstract
2:10 H. Bauschke Projection methods - the convex case - Abstract
2:50 Coffee
B. Kincaid - Chair
3:10 R. Millane Aspects of phase problems for multidimensional and undersampled data - Abstract
3:50 P. Rez A Matrix Operator Formulation of the Phase Retrieval Problem in Crystallography - Abstract
4:20 M. Fiddy Phase retrieval and zero information - Abstract
5:00 S. Patch Robust Phase Unwraping - Abstract
5:30 END
7:30 Party . . . at Spence's house in West Orinda (see map in registration packet)
 
SATURDAY. MAY 19
Other Types of Phase Problems: 1D, Completion & Entropy
J. Spence - Chair
8:40
L. Marks Feasible-Sets: 1D and the general phase problem - Abstract
9:20
F. Chen Extension of HRTEM resolution using semi-blind de-convolution and Gerchberg-Saxton Algorithm: Application to interface - Abstract
9:50
Coffee
H. Padmore - Chair
10:00
A. Szoke Diffraction from single particles . . . - Abstract
10:40
D. Saldin Phasing Methods for Structure Completion Problem in Crystallography - Abstract
11:20
K. Anduleit Phase refinement with EDEN: point defect structure in inorganic crystals - Abstract
11:50
A. Rahmim Reconstruction of Magnetic Domains from Coherent X-ray Scattering - Abstract
12:20
Lunch
Phase Problem in Crystallography
D. Agard - Chair
1:20
T. Terwilliger The map-likelihood function and improvement of phases in X-ray crystallography and general phase recovery - Abstract
2:00
J. Rodenburg Strategies for 3D imaging and phase retrieval in mixed image and diffraction spaces - Abstract
2:40
A. Urzhumtsev Direct Phasing in Crystallography: Statistical Approach with Multiminima Score Functions - Abstract
3:10
Coffee
A. Eades - Chair
3:30
Q. Shen Triplet-Phase Measurements in Crystallography - an Application of Triple Correlation Theory from Speckle imaging - Abstract
4:10
G. Xu New X-ray Scattering Methods for Nanostructures - Abstract
4:40
O. Terasaki Recent progress in Electron Crystallography to Mesoporous Materials and Materials Synthesized in their Spaces - Abstract
5:10
Discussion

     
POSTERS
  J. Borwein Maximum entropy-type methods and convex programming - Abstract
  G. Huldt, A. Szoke, J. Haydu Single particle diffraction patterns: alignment, averaging and reconstruction
  S. Marchesini, L. Zhao, et al X-ray fluorescence holography--some recent developments - Abstract
  S. Marchesini, C. Fadley, M. Howells Iterative deconvolution on X-ray fluorescence holography - Abstract
D. Shapiro High Resolution 3-D X-Ray diffraction microscope - Abstract
  R. Vincent A comparative study of iterative and conjugate gradient methods for phase retrieval from Fresnel images - Abstract
 

U. Weierstall,
J. Spence

Retrieval of Amplitude and Phase Contrast Images from Coherent Visible-Light Diffracted Intensities - Abstract
   

 

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