Reconstruction of an object from its symmetry-averaged diffraction pattern
نویسندگان
چکیده
منابع مشابه
Reconstruction of an object from its symmetry-averaged diffraction pattern.
The problem of reconstructing an object from diffraction data that has been incoherently averaged over a discrete group of symmetries is considered. A necessary condition for such data to uniquely specify the object is derived in terms of the object support and the symmetry group. An algorithm is introduced for reconstructing objects from symmetry-averaged data and its use with simulations is d...
متن کاملRetrieval of a complex-valued object from its diffraction pattern.
It is commonly understood that the retrieval of a complex-valued object from its diffraction pattern using a support constraint is a difficult problem, the more so if the support is symmetric. In this Letter we show that, for just such a symmetric support, use of an iterative algorithm in which the basic iteration is specified by a difference map converges routinely. All that is required is suf...
متن کاملX-ray image reconstruction from a diffraction pattern alone
S. Marchesini,* H. He, H. N. Chapman, S. P. Hau-Riege, A. Noy, M. R. Howells, U. Weierstall, and J. C. H. Spence Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550-9234, USA Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA Arizona State University, Department of Physics, Tempe, Arizona 85287-1504, USA ~Received 26 June 2...
متن کاملReconstruction of 3-D surface object from its pieces
The problem of reconstruction of broken surface objects embedded in 3-D space is handled. A coordinate independent representation for the crack curves is developed. A new robust matching algorithm is proposed which serves for nding matching pieces even when some brittle pieces are missing.
متن کاملMulti-object reconstruction from dynamic scenes: An object-centered approach
In this paper, we present a new framework for three-dimensional (3D) reconstruction of multiple rigid objects from dynamic scenes. Conventional 3D reconstruction from multiple views is applicable to static scenes, in which the configuration of objects is fixed while the images are taken. In our framework, we aim to reconstruct the 3D models of multiple objects in a more general setting where th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 2008
ISSN: 0108-7673
DOI: 10.1107/s0108767307050684