Statistical ranking, filtering, adduct detection, isotope correction, and molecular formula calculation are essential tasks in processing mass spectrometry data in metabolomics studies. In order to obtain high-quality data sets, a framework which incorporates all these methods is required. We present the MarVis-Filter software, which provides well-established and specialized methods for process...

A novel method of improving the precision pressure sensor has been proposed by applying design and correction technology that measures explosion in cylinder combustion chamber low-speed 2-stroke diesel engine for ships. To enable dynamic measurement high-temperature high-pressure environments, a diaphragm-type piezoelectric designed using quartz. The fast median filter algorithm adopted modifie...

This paper introduces a novel framework and corresponding methods for sampling reconstruction of sparse signals in shift-invariant (SI) spaces. We reinterpret the random demodulator, system that acquires bandlimited signals, as acquisition linear combinations samples SI setting with box function kernel. The sparsity assumption is exploited by compressive sensing (CS) paradigm recovery from redu...

To more easily estimate accurate values of collimator scatter facor, S(c), we suggest a two-component saturation model that accounts for scatter from the primary collimator and flattening filter and from the collimator jaws. This model, which assumes an exponential distribution of scatter intensity, was tested by in-air measurements using a mini-phantom for 4 MV and 10 MV X-rays of a Clinac 210...

Subband coders have been used in the past to dex(n) Y b ) compose a signal into subbands. The signals in each subband 4 Hi M F$’(Z) are quantized before transmission. The problem of optimal bit allocation involves allocating bits to the individual quantizers from a fixed budget so as to minimize the overall reconstruction error variance. The problem has been addressed in the past for two cases,...

This paper proposes a new joint source and channel coder based on the BCH codes on the reals, in which the signal protection (analogous to a signal interpolation) is performed before compression. This allows a better tradeoff in high accuracy compression, since part of the distortion introduced by the compression can be corrected by the "channel decoder". Furthermore, we propose as an optimal c...

Summary Fluorescent signal intensities from confocal laser scanning microscopes (CLSM) suffer from several distortions inherent to the method. Namely, layers which lie deeper within the specimen are relatively dark due to absorption and scattering of both excitation and fluorescent light, photobleaching and/or other factors. Because of these effects, a quantitative analysis of images is not alw...

Under poor light conditions or improper acquisition settings, the image degrades due to low contrast, brightness and suffer visual quality of picture. An enhancement is required manipulate scale pixel intensity for significant improvement in image. This paper proposed method gamma correction with a self-adaptive value accordance After transformation HSI (hue, saturation intensity) channel, mult...

The puzzle of computer vision might find new challenging solutions when we realize that most successful methods are working at image level, which is remarkably more difficult than processing directly visual streams. In this paper, we claim that their processing naturally leads to formulate the motion invariance principle, which enables the construction of a new theory of learning with convoluti...