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Low-Resolution Phases: Influence on SIR Syntheses and Retrieval with Double-Step Filtration
- Acta Cryst
, 1991
"... Different sources of error in single isomorphous replacement (SIR) maps are analysed. It is shown that SIR maps are good enough in themselves to localize a molecule but the absence of low-resolution reflections can distort he image of the molecule. Even in this case the molecule can be reliably loca ..."
Abstract
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Cited by 1 (0 self)
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Different sources of error in single isomorphous replacement (SIR) maps are analysed. It is shown that SIR maps are good enough in themselves to localize a molecule but the absence of low-resolution reflections can distort he image of the molecule. Even in this case the molecule can be reliably
Acta Crystallographica Section D Biological
"... Ab initio low-resolution phasing in crystallography of macromolecules ..."
Image analogies
, 2001
"... Figure 1 An image analogy. Our problem is to compute a new “analogous ” image B ′ that relates to B in “the same way ” as A ′ relates to A. Here, A, A ′ , and B are inputs to our algorithm, and B ′ is the output. The full-size images are shown in Figures 10 and 11. This paper describes a new framewo ..."
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Cited by 455 (8 self)
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of “image filter ” effects, including traditional image filters, such as blurring or embossing; improved texture synthesis, in which some textures are synthesized with higher quality than by previous approaches; super-resolution, in which a higher-resolution image is inferred from a low-resolution source
Accretion in brown dwarfs: a low-resolution criterion
"... Abstract. We present evidences of ongoing accretion and outflows in several objects at or below the substellar limit, including the width of the Hα line, the detection of forbidden lines and near-infrared excess. These objects are likely to belong to several SFRs, and have ages in the range 1-8 Myr. ..."
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. In addition, we present an accretion criterion based on low-resolution optical spectroscopy, which can be applied, from the statistical point of view, to large samples. Key words. Brown dwarfs – Accretion – open clusters 1. Brown Dwarfs, accretion, and high-and medium-resolution spectroscopy During the last
Variation of solvent density and low-resolution ab initio phasing
"... The bulk solvent plays a key role in the direct phasing at low resolution. The connectivity-based phasing method has been tested for the crystal of the tRNAAsp-aspartyl-tRNA synthetase complex. The neutron diffraction data have been measured for different solvent contrast masking different component ..."
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The bulk solvent plays a key role in the direct phasing at low resolution. The connectivity-based phasing method has been tested for the crystal of the tRNAAsp-aspartyl-tRNA synthetase complex. The neutron diffraction data have been measured for different solvent contrast masking different
EMORY UNIVERSITYHigh-Resolution Iris Image Reconstruction from Low-Resolution Imagery
"... We investigate the use of a novel multi-lens imaging system in the context of biometric identification, and more specifically, for iris recognition. Multi-lenslet cameras offer a number of significant advantages over standard single-lens camera systems, including thin form-factor and wide angle of v ..."
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for the investigation of such diversities. In this paper, we present techniques for computing a high-resolution reconstructed image from an ensemble of low-resolution images containing sub-pixel level displacements. The quality of a reconstructed image is measured by computing the Hamming distance between the Daugman 4
High-Resolution Iris Image Reconstruction from Low-Resolution Imagery
"... We investigate the use of a novel multi-lens imaging system in the context of biometric identification, and more specifically, for iris recognition. Multi-lenslet cameras offer a number of significant advantages over standard single-lens camera systems, including thin form-factor and wide angle of v ..."
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for the investigation of such diversities. In this paper, we present techniques for computing a high-resolution reconstructed image from an ensemble of low-resolution images containing sub-pixel level displacements. The quality of a reconstructed image is measured by computing the Hamming distance between the Daugman 4
Improved Image Reconstruction for Multi-Shot Multi-Coil Diffusion Imaging
"... Image reconstruction for multi-shot diffusion imaging requires accurate phase maps for each individual segment. Existing methods make use of 2Dnavigators [1] or self-calibrating trajectories to obtain low resolution phase maps. However, when the phase variations are not smooth enough compared to the ..."
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Image reconstruction for multi-shot diffusion imaging requires accurate phase maps for each individual segment. Existing methods make use of 2Dnavigators [1] or self-calibrating trajectories to obtain low resolution phase maps. However, when the phase variations are not smooth enough compared
An Application of the Molecular Replacement Technique in Direct Space to a Known Protein Structure
, 1975
"... The molecular replacement technique in real space (successive cycles of electron density calculations, averaging among non-crystallographically equivalent subunits, and structure factor calculations based upon the improved averaged density) was applied to glyceraldehyde-3-phosphate dehydrogenase. It ..."
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Cited by 1 (0 self)
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. It was shown possible (i) to extend the phases from a known 6.0/ ~ single isomorphous replacement set to at least 4.9. ~ resolution; (ii) to determine a reasonable structure at low resolution given the molecular envelope and non-crystallographic symmetry; and (iii) to use the resulting low-resolution phases
Results 1 - 10
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1,573
