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Incremental circle hough transform: An improved method for circle detection
Optik, 2017Abstract The Circle Hough Transform (CHT) is one of the popular circle detection algorithm in image processing and machine vision application, favored for its tolerance to noise. Nevertheless, it involves huge computation and excessive memory requirements.
A. Oualid Djekoune +2 more
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Classification by causes of dark circles and appropriate evaluation method of dark circles
Skin Research and Technology, 2015BackgroundDark circles refer to a symptom that present darkness under the eyes. Because of improvement in the quality of life, the dark circles have been recognized as one of major cosmetic concerns. However, it is not easy to classify the dark circles because they have various causes.MethodsTo select suitable instruments and detailed evaluation items,
S R, Park +9 more
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Discrete Mathematics and Applications, 1991
See the review in Zbl 0711.11036.
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See the review in Zbl 0711.11036.
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1985
We mentioned in Chapter 1 that the number r s (n) of solutions of the Diophantine equation $$ \sum\limits_{{k = 1}}^s {x_i^2} = n $$ (12.1) is the coefficient of x n in the Taylor expansion of the function \( 1 + \sum\nolimits_{{n = 1}}^{\infty } {{r_s}(n){x^n}} \).
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We mentioned in Chapter 1 that the number r s (n) of solutions of the Diophantine equation $$ \sum\limits_{{k = 1}}^s {x_i^2} = n $$ (12.1) is the coefficient of x n in the Taylor expansion of the function \( 1 + \sum\nolimits_{{n = 1}}^{\infty } {{r_s}(n){x^n}} \).
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Cartesian Circles and the Analytic Method
International Philosophical Quarterly, 2020The apparently circular arguments in Descartes’s Meditations should be read as analytic arguments, as Descartes himself suggested. This both explains and excuses the appearance of circularity. Analysis “digs out” what is already present in the meditator’s mind but not yet “expressly known” (Letter to Voetius).
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Circle contractive linear multistep methods
BIT, 1986The circle contractivity condition is essentially a particular form of stability condition, to be obeyed when a linear multistep method is applied to an initial-value problem involving the differential equation \((d/dt)y=\lambda (t)y\), for some continuous function \(\lambda\) (t).
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The Methods of Traffic Circle Problem
2010 International Conference on Logistics Engineering and Intelligent Transportation Systems, 2010In order to eliminate accident, reduce congestion and improve the efficiency of the traffic circle, three effective and feasible methods are proposed.As an example,the traffic circle flow of the circle in Xiamen China is simulated by these methods above using VISSIM soft.The results of simulation show that three methods applied to different traffic ...
Qiaoxian Zheng, Ming Li
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Renormalization Group Methods for Circle Mappings
1986The topic of this series of lectures is the theory of circle mappings with emphasis on recently developed ideas on the application of renormalization group methods to the analysis of parameter dependence of circle mappings. Circle mappings arise naturally in the study of flows which admit invariant two-dimensional tori.
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An Improved Method for Circle Detection
2008The algorithm of Hough transform for edge detection is very useful in digital image processing because of its insensitivity to the noises in the source image, so perfect results can be achieved when the dimension of parameters is less than two. However, the difficulty and complexity of calculation will be increased if the dimension of parameters is ...
Cheng Xing, Jianqiang Wang
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The Hardy—Littlewood circle method
2009One of the most significant all-purpose tools available in the study of rational points on higher-dimensional algebraic varieties is the Hardy—Littlewood circle method. In this chapter we will illustrate the power of this technique both as a theoretical tool and as a heuristic tool.
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