Adaptive Filtration in Block Based Coding for MRI Image Application

Swamy, Somashekhar; Kulkarni, Pallavi

doi:10.14445/22315381/ijett-v40p227

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…sensor leading to fixed pattern noise, natural fluctuations in light causing random noise, and electronic circuit noise originating from the image sensor and circuitry of a digital camera (Romberg and others, 1999;Boyat andJoshi, 2015 andSwamy andKulkarni, 2020).…”

Section: Video Processingmentioning

confidence: 99%

Using video detection of snow surface movements to estimate weak layer crack propagation speeds

Simenhois¹,

Birkeland

Gaume

et al. 2023

Ann. Glaciol.

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Dry-snow slab avalanches release due to crack propagation in a weak snow layer under a cohesive snow slab. Crack propagation speeds can provide insights into the potential size of avalanches and inform fracture and avalanche release models. Despite their importance, slope-scale crack speed measurements from real avalanches are limited. Further, most existing slope-scale measurements utilize the appearance of slab fractures on the snow surface. However, we have no evidence that the appearance of surface cracking is a good indicator of the weak layer crack propagation tip. Here we present a novel method to estimate crack propagation speed from snow surface movements in avalanche videos. Our technique uses changes in frame pixel intensity, allowing us to detect the location of weak layer cracks well before slab fractures appear on the snow surface. We use field experiments and numerical simulations to validate our method before applying it to five avalanches. Our estimates show that cracks propagate faster up and down the slope than in the cross-slope direction; this suggests that different propagation regimes likely govern crack propagation up/down the slope, cross-slope and in flat terrain.

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Section: Video Processingmentioning

confidence: 99%

Using video detection of snow surface movements to estimate weak layer crack propagation speeds

Simenhois¹,

Birkeland

Gaume

et al. 2023

Ann. Glaciol.

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“…• Histogram equalization techniques, typical histogram equalization (HE), brightness preserving bi-histogram equalization (BBHE), recursive mean separated histogram equalization (RMSHE), and dynamic histogram equalization (DHE) [83] • Dynamic block coding [84] • Median filter, Wiener filter [85] • Local area histogram equalization (LAHE) [86]…”

Section: Image Processing Techniquesmentioning

confidence: 99%

Digital Image Processing and Its Application for Medical Physics and Biomedical Engineering Area

Karmaker¹

2022

Digital Image Processing Applications

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The proper use of imaging modalities produces an image that aids in the detection of early stage abnormalities such as cancer, the identification of small precise lesions, and the presentation of internal illustration. A high-quality image can help doctors, radiologists, medical physicists, biomedical engineers, and scientists to make important decisions on ameliorate treatment planning that can reduce cancer mortality rates and provide life-saving results. This chapter outlines the features, attributes, and processing techniques of various medical imaging modalities utilized in the fields of radiation therapy and biomedical engineering. This study highlighted the significance of image processing in medical physics and biomedical engineering, characteristics of mammography, computed tomography (CT), ultrasound, magnetic resonance imaging (MRI), and positron emission tomography (PET) images. With their advanced application, various image processing approaches are distinguished. Images are collected through the journal, useful websites, the internet, or other sources. That can help teachers, students, researchers, scientists, and others comprehend and learn how to apply image processing techniques and which techniques will suit which modalities image. This chapter will provide a clear understanding of image processing techniques for medical physics and biomedical engineering participants, as well as an abundance of learning opportunities.

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Adaptive Filtration in Block Based Coding for MRI Image Application

Cited by 2 publications

References 4 publications

Using video detection of snow surface movements to estimate weak layer crack propagation speeds

Using video detection of snow surface movements to estimate weak layer crack propagation speeds

Digital Image Processing and Its Application for Medical Physics and Biomedical Engineering Area

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