Results 351 to 360 of about 9,170,751 (397)

Symmetry in target recognition

2008 4th International Conference on Ultrawideband and Ultrashort Impulse Signals, 2008
Symmetry has important consequences for target recognition. Rotation and reflection symmetry for targets near a ground or water surface not only help to identify the targets, but also aid in data processing to increase accuracy. While clutter (other scatterers) interfere with the target signatures, symmetry in the clutter can be used to suppress this ...
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Target recognition under nonuniform illumination conditions

Applied Optics, 2009
A two-step algorithm for reliable recognition of a target imbedded into a two-dimensional nonuniformly illuminated and noisy scene is presented. The input scene is preprocessed with a space-domain pointwise procedure followed by an optimum correlation.
Victor H, Diaz-Ramirez, Vitaly, Kober
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Class Boundary Exemplar Selection Based Incremental Learning for Automatic Target Recognition

IEEE Transactions on Geoscience and Remote Sensing, 2020
When adding new tasks/classes in an incremental learning scenario, the previous recognition capabilities trained on the previous training data can be lost.
Sihang Dang, Z. Cao, Z. Cui, Y. Pi, Nengyuan Liu   +4 more
semanticscholar   +1 more source

Moving Targets: Recognition of Alkyl Groups

Chemistry – A European Journal, 2006
AbstractAlkyl chains can adopt seemingly unusual conformations, such as helices, when bound to natural and synthetic hydrophobic receptors. This plasticity allows the alkanes to assume shapes that are congruent to the receptor's space and fill that space properly.
Michael P, Schramm, Julius, Rebek
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Target Recognition Considerations

1987
This chapter discusses fundamental considerations in radar target recognition. The overall goal of the chapter is threefold: (1) to introduce some of the basic issues associated with the problem of target recognition, (2) to discuss and compare various target recognition techniques, and (3) to provide examples of applications of target recognition ...
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Automatic target recognition employing signal compression

Applied Optics, 2007
Quadratic correlation filters (QCFs) have been used successfully to detect and recognize targets embedded in background clutter. Recently, a QCF called the Rayleigh quotient quadratic correlation filter (RQQCF) was formulated for automatic target recognition (ATR) in IR imagery.
Ragothaman, Pradeep, Mikhael, Wasfy B., Muise, Robert R., Mahalanobis, Abhijit   +3 more
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Target recognition–induced NK-cell responses

Blood, 2010
In this issue of Blood , Fauriat and colleagues provide a thorough study of the pattern and timing of NK-cell cytokine and chemokine secretion in response to target cell recognition. Most importantly, the authors demonstrate that CD56 dim NK cells rather than CD56 bright NK cells are the major cytokine and chemokine producer upon target recognition.
Xiaoli, Zhang, Jianhua, Yu
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Radar target recognition by fuzzy logic

Proceedings of the 1997 IEEE National Radar Conference, 1998
The objective of this paper is to present a method of target recognition based on the fuzzy logic principles applied to conventional and multifunction radars. After a presentation of the parameters which can be delivered by signal and data processing, the paper gives a description of an algorithm including both spatial and temporal merging. Computation
M. Moruzzis, N. Colin
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Transformation Invariant On-Line Target Recognition

IEEE Transactions on Neural Networks, 2011
Transformation invariant automatic target recognition (ATR) has been an active research area due to its widespread applications in defense, robotics, medical imaging and geographic scene analysis. The primary goal for this paper is to obtain an on-line ATR system for targets in presence of image transformations, such as rotation, translation, scale and
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Synaptic target recognition atDrosophila neuromuscular junctions

Microscopy Research and Technique, 2000
Every synaptogenesis begins with "synaptic target recognition," a cell-cell recognition event in which a neuron and its target stably adhere. Despite its importance in developing nervous systems, synaptic target recognition has been difficult to study in complex systems.
D, Rose, A, Chiba
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