Publication

A method for reducing noise in measurements taken by a distributed sensor

Marcelo Alfonso Soto Hernandez
2016
Patents

Abstract

According to the present invention there is provided a method of sensing comprising the steps of, (a) acquiring plurality of measurement values using a distributed optical fibre sensor; (b) arranging the plurality of measurement values in a matrix having at least two dimensions; (c) transforming each measurement value in the matrix to a corresponding pixel value on a predefined scale of pixel values;(d) forming an image with pixels having said corresponding pixel values, wherein each pixel in the image is positioned at a position in the image corresponding to the position of said measurement value in the matrix; (d) processing the image using an image processing algorithm so as to reduce noise in the image to provide processed image; (e) transforming each pixel value of pixels in the processed image to values to provide a plurality of measurement values with reduced noise.

Official source

https://infoscience.epfl.ch/entities/publication/2e992cf3-83e5-41df-8082-c11c3bd7eb5b

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Marcelo Alfonso Soto Hernandez
2016
Patents

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/2e992cf3-83e5-41df-8082-c11c3bd7eb5b

About this result

Related concepts (32)

Noise

Noise is unwanted sound considered unpleasant, loud, or disruptive to hearing. From a physics standpoint, there is no distinction between noise and desired sound, as both are vibrations through a medium, such as air or water. The difference arises when the brain receives and perceives a sound. Acoustic noise is any sound in the acoustic domain, either deliberate (e.g., music or speech) or unintended. In contrast, noise in electronics may not be audible to the human ear and may require instruments for detection.

Noise reduction

Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree. Noise rejection is the ability of a circuit to isolate an undesired signal component from the desired signal component, as with common-mode rejection ratio. All signal processing devices, both analog and digital, have traits that make them susceptible to noise.

Image

An image is a visual representation of something. An image can be a two-dimensional (2D) representation, such as a drawing, painting, or photograph, or a three-dimensional (3D) object, such as a carving or sculpture. An image may be displayed through other media, including projection on a surface, activation of electronic signals, or digital displays. Two-dimensional images can be still or animated. Still images can usually be reproduced through mechanical means, such as photography, printmaking or photocopying.

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A method for reducing noise in measurements taken by a distributed sensor

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