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An Improved Circle Detection Method Based on Right Triangles Inscribed in a Circle
2009 WRI World Congress on Computer Science and Information Engineering, 2009An efficient method of detecting circles, called Semi-Random Detection (SRD) based on Right Triangles Inscribed in a Circle (RTIC), is presented. Above all, a 2D compressed Array Space based on the Positions of Valid Pixels (ASPVP) is constructed. And then four points searching method is used to search the corresponding right triangles. After employing
Fei Shang +3 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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The Cutting Circle Method and Romberg Algorithm
2013 Ninth International Conference on Computational Intelligence and Security, 2013Using the cutting circle method to calculate the value of π was firstly proposed by the Chinese mathematician Liu Hui in Three Kingdoms Era, around the third century AD. Two hundred years later, the Northern and Southern mathematician Zu got a comparative accurate approximation of π by using this method.
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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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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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Relations with the family of circle methods
1994Abstract In this chapter, we give a survey of the family of circle methods, as de- veloped by Meyer−König in [185]. These methods are related to Borel’s methods in that, under certain order conditions on the sequence {sn}, they are essentially equivalent.
Bruce Shawyer, Bruce Watson
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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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The Circle Method and Waring’s Problem
1991In this chapter we introduce the circle method of Hardy and Littlewood and its application to Waring’s problem in the rational field ℚ.
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