Journal ArticleDOI
Segmentation of overlapping Cryptosporidium and Giardia (oo)cysts using bidirectional contour tracing
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TLDR
A new approach using a bidirectional contour tracing technique to segment and enumerate overlapping Cryptosporidium and Giardia (oo)cysts in microscopic images of treated water samples is introduced, comparable to better than those of four well-known ellipse detection methods.About:
This article is published in Biomedical Signal Processing and Control.The article was published on 2015-04-01. It has received 3 citations till now.read more
Citations
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Proceedings ArticleDOI
Combined partial differential equation filtering and particle swarm optimization for noisy biomedical image segmentation
Salim Lahmiri,Mounir Boukadoum +1 more
TL;DR: This paper presents a sequential system to jointly denoise and segment an image contaminated with Gaussian noise, using a fourth-order partial differential equation filter for noise cancelling and particle swarm optimization for segmentation.
Journal ArticleDOI
Multiple ellipse fitting of densely connected contours
TL;DR: A framework for multiple ellipse fitting which fits densely connected contours is proposed rather than design an algorithm for the problem and results show that the framework can extract multiple ellipses from contours with satisfactory accuracy and efficiency.
Proceedings ArticleDOI
Multi-Objective Boundary Tracking Method in Grayscale Image
TL;DR: The method of this paper can adaptively track the multi-objective boundary in the complex grayscale image, and has a certain noise resistance and relatively strong robustness.
References
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Journal ArticleDOI
Generalizing the hough transform to detect arbitrary shapes
TL;DR: It is shown how the boundaries of an arbitrary non-analytic shape can be used to construct a mapping between image space and Hough transform space, which makes the generalized Houghtransform a kind of universal transform which can beused to find arbitrarily complex shapes.
Journal ArticleDOI
A new curve detection method: randomized Hough transform (RHT)
Lei Xu,Erkki Oja,P. Kultanen +2 more
TL;DR: This work proposes a new method for curve detection that has the advantages of small storage, high speed, infinite parameter space and arbitrarily high resolution, and the preliminary experiments have shown that the new method is quite effective.
Journal ArticleDOI
A fast algorithm for multilevel thresholding
TL;DR: A faster version of Otsu's method for improving the efficiency of computation for the optimal thresholds of an image by determining the modified between-class variance by accessing a look-up table is quicker than that by performing mathematical arithmetic operations.
Journal ArticleDOI
Noise removal using fourth-order partial differential equation with applications to medical magnetic resonance images in space and time
TL;DR: A new method for image smoothing based on a fourth-order PDE model that demonstrates good noise suppression without destruction of important anatomical or functional detail, even at poor signal-to-noise ratio is introduced.
Journal ArticleDOI
The Adaptive Hough Transform
John Illingworth,Josef Kittler +1 more
TL;DR: This correspondence illustrates the ideas of the Adaptive Hough Transform, AHT, by tackling the problem of identifying linear and circular segments in images by searching for clusters of evidence in 2-D parameter spaces and shows that the method is robust to the addition of extraneous noise.