A Background Correction Method Based on Lazy Snapping

2013 ◽  
Author(s):  
Yuezun Li ◽  
Xueqing Li
Keyword(s):  
Correction Method ◽  
Background Correction ◽  
Lazy Snapping

A New Background-Correction Method for Atomic Absorption Spectrometry

1983 ◽  
Vol 37 (5) ◽  
pp. 419-424 ◽  
Author(s):  
S. B. Smith ◽  
G. M. Hieftje
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Broad Band ◽  
Absorption Spectrometry ◽  
Correction Method ◽  
Background Correction ◽  
New Method ◽  
New Technique ◽  
Atomic Line ◽  
Single Beam

A new method is described and tested for background correction in atomic absorption spectrometry. Applicable to flame or furnace atomizers, the method is capable of correcting backgrounds caused by molecular absorption, particulate scattering, and atomic-line overlap, even up to an absorbance value of 3. Like the Zeeman approach, the new method applies its correction very near the atomic line of interest, can employ single-beam optics, and requires no auxiliary source. However, no ancillary magnet or other costly peripherals are required and working curves are single-valued. The new technique is based on the broadening which occurs in a hollow-cathode spectral line when the lamp is operated at high currents. Under such conditions, the absorbance measured for a narrow (atomic) line is low, whereas the apparent absorbance caused by a broad-band background contributor remains as high as when the lamp is operated at conventional current levels. Background correction can therefore be effected by taking the difference in absorbances measured with the lamp operated at high and low currents. The new technique is evaluated in its ability to correct several different kinds of background interference and is critically compared with competitive methods.

Analysis of an automated background correction method for cardiovascular MR phase contrast imaging in children and young adults

2013 ◽  
Vol 44 (3) ◽  
pp. 265-273 ◽  
Author(s):  
Cynthia K. Rigsby ◽  
Nicholas Hilpipre ◽  
Gary R. McNeal ◽  
Gang Zhang ◽  
Emma E. Boylan ◽  
...  
Keyword(s):  
Young Adults ◽  
Phase Contrast ◽  
Correction Method ◽  
Background Correction ◽  
Phase Contrast Imaging ◽  
Contrast Imaging ◽  
Cardiovascular Mr ◽  
Children And Young Adults

A New Adaptive Background Correction Method Based on Pinhole Image Analysis in Optical System Modulation Transfer Function Measurement

2011 ◽  
Vol 31 (8) ◽  
pp. 0812008
Author(s):  
段亚轩 Duan Yaxuan ◽  
陈永权 Chen Yongquan ◽  
赵建科 Zhao Jianke ◽  
李坤 Li Kun ◽  
龙江波 Long Jiangbo
Keyword(s):  
Image Analysis ◽  
Transfer Function ◽  
Optical System ◽  
Modulation Transfer Function ◽  
Correction Method ◽  
Background Correction ◽  
Modulation Transfer ◽  
Function Measurement ◽  
Pinhole Image

scholarly journals A Simple, Robust Orthogonal Background Correction Method for Two-Dimensional Liquid Chromatography

2012 ◽  
Vol 84 (15) ◽  
pp. 6747-6752 ◽  
Author(s):  
Marcelo R. Filgueira ◽  
Cecilia B. Castells ◽  
Peter W. Carr
Keyword(s):  
Liquid Chromatography ◽  
Correction Method ◽  
Background Correction ◽  
Two Dimensional
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