Improving long range and high magnification face recognition: Database acquisition, evaluation, and enhancement

This paper introduces a new method, single-trial phase locking statistics (S-PLS) to estimate phase locking in single trials of brain signals between two electrodes. The possibility of studying single trials removes an important limitation in the study of long-range synchrony in brain signals. S-PLS is closely related to our previous method, phase locking statistics (PLS) that estimates phase locking over a set of trials. The S-PLS method is described in detail and applied to human surface recordings during the task of face-recognition. We compare these results with those provided by PLS and show that they are qualitatively very similar, although S-PLS provides better discrimination of synchronic episodes.

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Automated, long-range, night/day, active-SWIR face recognition system

10.1117/12.2052716 ◽

2014 ◽

Cited By ~ 3

Author(s):

Brian E. Lemoff ◽

Robert B. Martin ◽

Mikhail Sluch ◽

Kristopher M. Kafka ◽

Andrew Dolby ◽

...

Keyword(s):

Face Recognition ◽

Long Range ◽

Recognition System ◽

Face Recognition System

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Long range face recognition using shifted phase joint transform correlation technique

10.1117/12.828650 ◽

2009 ◽

Author(s):

Trisha Ahmed ◽

Mohammed Nazrul Islam ◽

K. Vijayan Asari ◽

Mohammad A. Karim

Keyword(s):

Face Recognition ◽

Long Range ◽

Correlation Technique ◽

Joint Transform Correlation

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Designing a Low-Resolution Face Recognition System for Long-Range Surveillance

2016 International Conference of the Biometrics Special Interest Group (BIOSIG) ◽

10.1109/biosig.2016.7736917 ◽

2016 ◽

Cited By ~ 2

Author(s):

Yuxi Peng ◽

Luuk Spreeuwers ◽

Raymond Veldhuis

Keyword(s):

Face Recognition ◽

Long Range ◽

Recognition System ◽

Low Resolution ◽

Face Recognition System

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The Microstructure of Shock-Synthesized Diamond

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010006163x ◽

1967 ◽

Vol 25 ◽

pp. 324-325

Author(s):

Lucien F. Trueb

Keyword(s):

Single Crystals ◽

Preferred Orientation ◽

High Magnification ◽

Texture Pattern ◽

Shock Process ◽

New Type ◽

Diffraction Diagram

A new type of synthetic industrial diamond formed by an explosive shock process has been recently developed by the Du Pont Company. This material consists of a mixture of two basically different forms, as shown in Figure 1: relatively flat and compact aggregates of acicular crystallites, and single crystals in the form of irregular polyhedra with straight edges.Figure 2 is a high magnification micrograph typical for the fibrous aggregates; it shows that they are composed of bundles of crystallites 0.05-0.3 μ long and 0.02 μ. wide. The selected area diffraction diagram (insert in Figure 2) consists of a weak polycrystalline ring pattern and a strong texture pattern with arc reflections. The latter results from crystals having preferred orientation, which shows that in a given particle most fibrils have a similar orientation.

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Macromolecular structures of biological specimens are not obscured by controlled osmium impregnation

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100076639 ◽

1983 ◽

Vol 41 ◽

pp. 606-607

Author(s):

Klaus-Ruediger Peters ◽

Samuel A. Green

Keyword(s):

Thin Films ◽

Electrical Conductivity ◽

Critical Point ◽

Metal Films ◽

High Magnification ◽

Osmium Impregnation ◽

Instrumental Resolution ◽

20 Nm ◽

Continuous Metal

High magnification imaging of macromolecules on metal coated biological specimens is limited only by wet preparation procedures since recently obtained instrumental resolution allows visualization of topographic structures as smal l as 1-2 nm. Details of such dimensions may be visualized if continuous metal films with a thickness of 2 nm or less are applied. Such thin films give sufficient contrast in TEM as well as in SEM (SE-I image mode). The requisite increase in electrical conductivity for SEM of biological specimens is achieved through the use of ligand mediated wet osmiuum impregnation of the specimen before critical point (CP) drying. A commonly used ligand is thiocarbohvdrazide (TCH), first introduced to TEM for en block staining of lipids and glvcomacromolecules with osmium black. Now TCH is also used for SEM. However, after ligand mediated osinification nonspecific osmium black precipitates were often found obscuring surface details with large diffuse aggregates or with dense particular deposits, 2-20 nm in size. Thus, only low magnification work was considered possible after TCH appl ication.

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