Results 41 to 50 of about 1,068,113 (278)
Objective speckle velocimetry for autonomous vehicle odometry [PDF]
, 2012 Speckle velocimetry is investigated as a means of determining odometry data with potential for application on autonomous robotic vehicles. The technique described here relies on the integration of translation measurements made by normalized cross ...
Charrett, Thomas O. H. +3 more
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Low-coherence optical fibre speckle interferometry [PDF]
, 2006 This paper describes the development of optical fibre low-coherence speckle interferometers capable of three-dimensional surface profiling with a resolution of 10–20 µm and a depth range of typically tens of centimetres.
Balboa, Itziar +2 more
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COMPARISON OF FILTERS DEDICATED TO SPECKLE SUPPRESSION IN SAR IMAGES [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 This paper presents the results of research on the effectiveness of different filtering methods dedicated to speckle suppression in SAR images. The tests were performed on RadarSat-2 images and on an artificial image treated with simulated speckle noise.
P. Kupidura
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Image Noise Removal in Ultrasound Breast Images Based on Hybrid Deep Learning Technique
Sensors, 2023 Rapid improvements in ultrasound imaging technology have made it much more useful for screening and diagnosing breast problems. Local-speckle-noise destruction in ultrasound breast images may impair image quality and impact observation and diagnosis.
Baiju Babu Vimala +6 more
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Riduzione dello speckle noise con specchi deformabili [PDF]
, 2022 Lo Speckle Noise è un pattern che sorge quando la luce monocromatica viene distribuita su una superficie ruvida e, diffusa in direzioni casuali, viene acquisita da un rilevatore con apertura finita. Questo tipo di disturbo è caratterizzato da un numero
Castellaro, Chiara
core
Time-scale analysis of abrupt changes corrupted by multiplicative noise [PDF]
, 2000 Multiplicative Abrupt Changes (ACs) have been considered in many applications. These applications include image processing (speckle) and random communication models (fading).
Chabert, Marie +5 more
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Speckle Reduction of Reconstructions of Digital Holograms Using Gamma-Correction and Filtering
IEEE Access, 2018 Speckle noise is inevitable in the process of acquiring of digital holograms. In this paper, a new approach is proposed to suppress the speckle noise in the digital hologram.
Xiaohui Huang +4 more
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Detection and Estimation of Abrupt Changes contaminated by Multiplicative Gaussian Noise [PDF]
, 1998 The problem of abrupt change detection has received much attention in the literature. The Neyman Pearson detector can be derived and yields the well-known CUSUM algorithm, when the abrupt change is contaminated by an additive noise.
Jean-Yves Tourneret +1 more
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Analysis of Edge Detection in Bar Code Symbols: An Overview and Open Problems
Journal of Applied Mathematics, 2012 Accurate edge localization is essential in bar code decoding. Since speckle noise is the most dominant form of noise in laser bar code scanners, it is important to fully understand its effects on edge detection.
Saša Krešić-Jurić
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A Study of Speckle Noise Reduction Filters
Signal & Image Processing : An International Journal, 2015 Ultrasound images and SAR i.e. synthetic aperture radar images are usually corrupted because of speckle noise also called as granular noise. It is quite a tedious task to remove such noise and analyze those corrupted images. Till now many researchers worked to remove speckle noise using frequency domain methods, temporal methods, and adaptive methods ...
Jyoti Jaybhay, Rajveer Shastri
openaire +1 more source