نتایج جستجو برای: intensity noise

تعداد نتایج: 368216  

Journal: :journal of medical signals and sensors 0
zahra shahvaran kamran kazemi mohammad sadegh helfroush nassin jafarian

this paper represents a new region-based active contour model that can be used to segment images with intensity non-uniformity and high level noise. the main idea of our proposed method is to use gaussian distributions with different means and variances with incorporation of intensity non-uniformity model for image segmentation. in order to integrate the spatial information between neighboring ...

Journal: :Occupational and environmental medicine 2009
R Beelen G Hoek D Houthuijs P A van den Brandt R A Goldbohm P Fischer L J Schouten B Armstrong B Brunekreef

OBJECTIVES Associations between cardiovascular mortality and air pollution and noise together were investigated. METHODS Data from the ongoing Netherlands Cohort Study on Diet and Cancer (120,852 subjects; follow-up 1987-1996) were used. Cox proportional hazard analyses were conducted for the association between cardiovascular mortality and exposure to black smoke, traffic intensity on the ne...

سید رضا حسن بیگی بیدگلی, , برات قبادیان, , پروین نصیری, , نصرا… کمالیان, ,

In addition to farm operations, power tillers in Iran are also engaged in load and passenger transportation. Inspite of their noise and adverse effects on power tiller drivers and bystanders, they have not been adequatly investigated. The initial survey in the present investigation on a 13-hp power tiller at 2200 rpm engine speed revealed that its noise was 92 dB(A), compared to the standard l...

Journal: :The Journal of the Acoustical Society of America 2009

2015
Michael Eziashi Osadebey

Noise Estimation, Noise Reduction and Intensity Inhomogeneity Correction in MRI Images of the Brain Michael Eziashi Osadebey, Ph.D. Concordia University, 2015 Rician noise and intensity inhomogeneity are two common types of image degradation that manifest in the acquisition of magnetic resonance imaging (MRI) system images of the brain. Many noise reduction and intensity inhomogeneity correctio...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید