Results 141 to 150 of about 610,391 (205)

AKAZE-GMS-PROSAC: A New Progressive Framework for Matching Dynamic Characteristics of Flotation Foam. [PDF]

J Imaging
Peng Z, Jiang Z, Zhu P, Cai G, Luo X.
europepmc   +1 more source

Monitoring Respiratory Health in Children With Acute Asthma Using Wearable Electrical Bioimpedance and Breath Sounds: Observational Case-Control Study.

JMIR Mhealth Uhealth
Sanchez-Perez JA, Berkebile J, Jordan N, Maher K, Inan O, Grunwell J.   +5 more
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Generalized matched filtering

Applied Optics, 1980
Matched filtering is the key concept in coherent optical pattern recognition. Unfortunately, matched filters are more sensitive to some things (nonconsequential variations in size, rotation angle, etc.) and less sensitive to other things (differences between object classes) than we might desire.
H J, Caulfield, R, Haimes
openaire   +2 more sources

Acoustooptic matched filter correlator

Applied Optics, 1982
The signal model used and the output SNR(0) measure chosen are shown to affect the performance of an acoustooptic time-integrating correlator. Nonuniform acoustic fields are also shown to affect the results, but these error sources can be overcome with a new hybrid time- and space-integrating acoustooptic matched filter correlator that we describe and ...
D, Casasent, G, Silbershatz, B V, Kumar
openaire   +2 more sources

Phase-only matched filtering

Applied Optics, 1984
From image processing work, we know that the phase information is significantly more important than amplitude information in preserving the features of a visual scene. Is the same true in the case of a matched filter? From previous work [ J. L. Horner , Appl. Opt.21, 4511( 1982)], we know that a pure phase correlation filter
J L, Horner, P D, Gianino
openaire   +2 more sources

Optical wavelet matched filter

Applied Optics, 1994
A shift-invariant optical continuous wavelet transform is used for pattern recognition. We propose an Voptical wavelet matched filter that performs optical wavelet transforms for edge enhancement and the correlation between two wavelet transforms in a single step. This new bandpass matched filter shows improved discrimination capability with respect to
D, Roberge, Y, Sheng
openaire   +2 more sources

Time-varying matched filters

Circuits Systems and Signal Processing, 1996
We examine a generalized matched-filter problem in which the interference is a nonstationary process generated by passing white noise through a general linear time-varying filter. First a matched filter is constructed by transforming the problem into an equivalent formulation involving stationary interference and a time-varying propagation channel ...
Sills, James A., Kamen, Edward W.
openaire   +1 more source

Locally nonlinear matched filtering

Optics Letters, 1993
A new matched filter for pattern recognition is introduced. Previous researchers have introduced matched filters that are nonlinear functions of the spectrum, for which the classical matched filter is divided by some power m of the spectrum of interest.
O, Gualdron, H H, Arsenault
openaire   +2 more sources

Amplitude-compensated matched filtering

Applied Optics, 1988
A method of amplitude-compensated matched filtering is presented. This yields much better discrimination and a sharper autocorrelation peak compared with the classical matched spatial filter and the phase-only one. By computer simulation in the case of alphanumeric characters, it is concluded that, although the phase information is significantly more ...
G G, Mu, X M, Wang, Z Q, Wang
openaire   +2 more sources