Contrast preservation in Polish Palatalization

The reasons for studying energy losses can be quite different. The motivations are often highly diversified even if searchers are electron microscopists For instance, the problem of useful penetration involves studying the question of chromatic blurring even if in many cases this effect is not sufficient for explaining the limitations in penetration. The formation of damage (direct knock-on and ionization) is interesting in many ways. In electron microscopy an important point is also the contrast preservation in an inelastic event. This point is related to the useful penetratior (principally in crystalline materials). If that is rather well understood in the case of potentials which are not localized (1) (plasmons and single quasi free electron excitations), it is not so clear in the case of localized interactions as electron phonon ones (2,3,4) or inner shell excitations even if the scattering angle is quite small. However the understanding of this contrast preservation is fundamental.

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Environmental shielding is contrast preservation

Phonology ◽

10.1017/s0952675717000379 ◽

2018 ◽

Vol 35 (1) ◽

pp. 39-78 ◽

Cited By ~ 3

Author(s):

Juliet Stanton

Keyword(s):

South American ◽

Essential Component ◽

Nasal Vowels ◽

Growing Body ◽

Explicit Reference ◽

Contrast Preservation ◽

Successful Analysis

The term ‘environmental shielding’ has been used to refer to a class of processes in which the phonetic realisation of a nasal stop depends on its vocalic context. In Chiriguano, for example, nasal consonants are realised as such before nasal vowels (/mã/ → [mã]), but acquire an oral release before oral vowels (/ma/ → [mba]). Herbert (1986) claims that shielding protects a contrast between oral and nasal vowels: if Chiriguano /ma/ were realised as [ma], [a] would likely carry some degree of nasal coarticulation, and be less distinct from nasal /ã/. This article provides new arguments for Herbert's position, drawn from a large typological study of South American languages. I argue that environmental shielding is contrast preservation, and that any successful analysis of shielding must make explicit reference to contrast. These results contribute to a growing body of evidence that constraints on contrast are an essential component of phonological theory.

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A novel method of ultra-low contrast administration for coronarography and percutaneous coronary intervention using the automatic injector. The need to focus on contrast preservation techniques

Advances in Interventional Cardiology ◽

10.5114/pwki.2011.21186 ◽

2011 ◽

Vol 1 ◽

pp. 8-14

Author(s):

Adam T. Stys ◽

Tomasz Stys ◽

Przemysław Recki

Keyword(s):

Percutaneous Coronary Intervention ◽

Coronary Intervention ◽

Contrast Administration ◽

Low Contrast ◽

Percutaneous Coronary ◽

Novel Method ◽

Contrast Preservation

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Single Image Super-Resolution Algorithm Possessing Edge and Contrast Preservation

International Journal of Image and Graphics ◽

10.1142/s0219467819500244 ◽

2019 ◽

Vol 19 (04) ◽

pp. 1950024

Author(s):

Gunnam Suryanarayana ◽

Ravindra Dhuli ◽

Jie Yang

Keyword(s):

High Frequency ◽

Super Resolution ◽

Region Of Interest ◽

Bilateral Filter ◽

Surveillance Video ◽

Complex Wavelet Transform ◽

Multi Stage ◽

Contrast Preservation ◽

Single Image Super Resolution ◽

Value Decomposition

In real time surveillance video applications, it is often required to identify a region of interest in a degraded low resolution (LR) image. State-of-the-art super-resolution (SR) techniques produce images with poor illumination and degraded high frequency details. In this paper, we present a different approach for SISR by correcting the dual-tree complex wavelet transform (DT-CWT) subbands using the multi-stage cascaded joint bilateral filter (MSCJBF) and singular value decomposition (SVD). The proposed method exploits geometric regularity for implementing the covariance-based interpolation in the spatial domain. We decompose the interpolated LR image into different image and wavelet coefficients by employing DT-CWT. To preserve edges, we alter the wavelet sub-bands with the high frequency details obtained from the MSCJBF. Simultaneously, we retain uniform illumination by improving the image coefficients using SVD. In addition, the wavelet sub-bands undergo lanczos interpolation prior to the subband refinement. Experimental results demonstrate the effectiveness of our method.

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