Results 41 to 50 of about 289,355 (305)

Mixed-Noise Band Selection for Hyperspectral Images

IEEE Access, 2020
Hyperspectral images (HSIs) with abundant spectral information are generally susceptible to various types of noise, such as Gaussian noise and stripe noise.
Zhen Li, Chenwei Deng, Yun Huang
doaj   +1 more source

Band Ranking via Extended Coefficient of Variation for Hyperspectral Band Selection

Remote Sensing, 2020
Hundreds of narrow bands over a continuous spectral range make hyperspectral imagery rich in information about objects, while at the same time causing the neighboring bands to be highly correlated.
Peifeng Su, Sasu Tarkoma, Petri K. E. Pellikka   +2 more
doaj   +1 more source

Reducing the Effect of the Endmembers’ Spectral Variability by Selecting the Optimal Spectral Bands

Remote Sensing, 2017
Variable environmental conditions cause different spectral responses of scene endmembers. Ignoring these variations affects the accuracy of fractional abundances obtained from linear spectral unmixing. On the other hand, the correlation between the bands
Omid Ghaffari, Mohammad Javad Valadan Zoej, Mehdi Mokhtarzade   +2 more
doaj   +1 more source

Hyperspectral imagery visualization using band selection

2012 4th Workshop on Hyperspectral Image and Signal Processing (WHISPERS), 2012
This paper investigates hyperspectral image display based on selection of three spectral channels to build a red-green-blue (RGB) composite. A series of band selection algorithms are implemented and compared for this purpose. In particular, three color composition schemes based on visualization-oriented spectral segmentations are proposed.
Hongjun Su, Qian Du, Peijun Du
openaire   +1 more source

Evaluation of Informative Bands Used in Different PLS Regressions for Estimating Leaf Biochemical Contents from Hyperspectral Reflectance

Remote Sensing, 2019
Partial least squares (PLS) regression models are widely applied in spectroscopy to estimate biochemical components through hyperspectral reflected information.
Jia Jin, Quan Wang
doaj   +1 more source

A multi-band high selectivity frequency selective surface for ka-band applications

2017 10th Global Symposium on Millimeter-Waves, 2017
This paper proposes a new method to implement Frequency Selective Surfaces (FSSs) with sharp band edge transitions suitable for millimetres wave applications. A bandpass FSS can be realized by combining two bandstop FSS structures on the same plane.
Hussein, Muaad, Huang, Yi, Al-Juboori, Bahaa, Zhou, Jiafeng   +3 more
openaire   +1 more source

Representative Band Selection for Hyperspectral Image Classification

ISPRS International Journal of Geo-Information, 2018
The high dimensionality of hyperspectral images (HSIs) brings great difficulty for their later data processing. Band selection, as a commonly used dimension reduction technique, is the selection of optimal band combinations from the original bands, while
Fuding Xie, Fangfei Li, Cunkuan Lei, Lina Ke   +3 more
doaj   +1 more source

Adjunctive Therapeutic Plasma Exchange in Refractory Adult‐Onset Still's Disease Complicated by Secondary Macrophage Activation Syndrome: A Single‐Center Experience

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Adult‐onset Still's disease (AOSD) complicated by macrophage activation syndrome (MAS) carries substantial mortality. The role of therapeutic plasma exchange (TPE) remains uncertain. Methods We retrospectively analyzed patients with AOSD‐MAS treated with TPE at a single‐center.
Masataka Ueda, Tomohiro Saito, Masahide Mizobuchi, Tomoki Shimomura, Saki Kawamori, Mitsuru Kawanishi, Natsuko Hattori, Jo Sugiyama, Satoshi Tsubata, Hanami Horiguchi, Kazuki Abe, Nao Iida, Yuki Kajio, Nao Oguro, Ryo Yanai, Hirokazu Honda   +15 more
wiley   +1 more source

Highly selective-notch band ultrawide band antenna: A review

Heliyon
Ultra-wideband (UWB) technology offers a unique alternative for communicating over short distances due to its high capacity and low power consumption during transmission and reception. However, designing an antenna with appropriate characteristics for these systems is a significant problem since it must avoid interfering with current limited bandwidth ...
Anees Abbas, Wahaj Abbas Awan, Niamat Hussain, Domin Choi, Sangmin Lee, Nam Kim   +5 more
openaire   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source