Results 261 to 270 of about 289,355 (305)
Some of the next articles are maybe not open access.

Band-selective radiofrequency pulses

Journal of Magnetic Resonance (1969), 1991
A theoretical treatment is given of the general problem of designing amplitude-modulated radiofrequency pulses that will excite a specified band of frequencies within a high-resolution NMR spectrum with uniform intensity and phase but with negligible excitation elsewhere.
Helen Geen, Ray Freeman
openaire   +1 more source

Band select ultra wide band unequal power splitter

Microwave and Optical Technology Letters, 2016
In this letter, a new design of a band select ultra wide band (UWB) unequal power splitter suitable for broadband communication systems was presented. To obtain band select characteristics, the proposed structure used broadside coupled lines. The quarter wave transformer in the conventional Wilkinson power splitter was replaced by offset broadside ...
D. Packiaraj, M. Ramesh, A.T. Kalghatgi
openaire   +1 more source

Band Selection: Revisited

2013
We have discussed a method of band selection in Chap. 4 where a specific subset of hyperspectral bands was selected from the input images based on the conditional entropy measure. We have also observed that one can achieve almost similar fusion output by using a small fraction of hyperspectral data.
Subhasis Chaudhuri, Ketan Kotwal
openaire   +1 more source

Dual-Band Bandpass Frequency-Selective Structures With Arbitrary Band Ratios

IEEE Transactions on Antennas and Propagation, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Bo, Shen, Zhongxiang
openaire   +1 more source

CLODD based band group selection

2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016
Herein, we explore both a new supervised and unsupervised technique for dimensionality reduction or multispectral sensor design via band group selection in hyperspectral imaging. Specifically, we investigate two algorithms, one based on the improved visual assessment of clustering tendency (iVAT) and the other based on the automatic extraction of ...
Muhammad A. Islam   +3 more
openaire   +1 more source

Hyperspectral Band Selection: A Review

IEEE Geoscience and Remote Sensing Magazine, 2019
A hyperspectral imaging sensor collects detailed spectral responses from ground objects using hundreds of narrow bands; this technology is used in many real-world applications. Band selection aims to select a small subset of hyperspectral bands to remove spectral redundancy and reduce computational costs while preserving the significant spectral ...
Weiwei Sun, Qian Du
openaire   +1 more source

Band selection procedure for multispectral scanners

Applied Optics, 1994
Advances in high spectral resolution sensors and in data handling capabilities are enabling development of greatly improved remote-sensing devices for resource monitoring, so that design trade-offs are required. A methodology for optimizing selection of spectral bands for multispectral instruments such as those on the LANDSAT series of satellites is ...
openaire   +2 more sources

Background adaptive multispectral band selection

SPIE Proceedings, 2001
AN initial automated band selection algorithm suitable for real-time application with tunable multispectral cameras is presented for multispectral target detection. The method and algorithm were developed from analyses of several background and target signatures collected from a field test using the prototype Tunable Filter Multispectral Camera (TFMC).
Frank J. Crosby   +3 more
openaire   +1 more source

Methodology for Hyperspectral Band Selection

Photogrammetric Engineering & Remote Sensing, 2004
While hyperspectral data are very rich in information, processing the hyperspectral data poses several challenges regarding computational requirements, information redundancy removal, relevant information identification, and modeling accuracy.
Peter Bajcsy, Peter Groves
openaire   +1 more source

Band selection based hyperspectral unmixing

2009 IEEE International Workshop on Imaging Systems and Techniques, 2009
Hyperspectral unmixing is the procedure by which the measured spectrum of a mixed pixel is decomposed into a collection of constituent spectra, or endmembers, and their mixing proportions. However, due to the hundreds of spectral bands contained in the hyperspectral imagery, the large amount of data not only increase the computational loads, but also ...
Sen Jia, Zhen Ji, Yuntao Qian
openaire   +1 more source

Home - About - Disclaimer - Privacy