基于离散曲率的扫描线条图快速圆弧检测
Journal Title: Science Paper Online - Year 2008, Vol 3, Issue 2
Abstract
本文提出一种从圆弧假设到圆弧验证模式的扫描线条图的圆弧检测方法。该方法首先提取扫描线条图的图像骨骼,使用分段线性多边形对线条图像骨骼进行近似表示,来达到简化计算和减少数据量的目的;再通过对骨骼图像的局部离散曲率的计算和统计来假设图像局部存在圆弧;最后根据计算出的圆弧的圆参数将假设的圆弧映射至原始图像进行比对来验证局部圆弧的存在。该方法可以有效地克服圆弧断裂、重叠、交叉等噪声的影响,具有较好的鲁棒性和计算快速的优点。
Authors and Affiliations
WANG Fei HE Yongjian
The design of USB2.0 interface module based on FX2LP
A USB2.0 interface module is introduced in this paper, which provides a high speed data path between host and peripherals. The chip EZUSB-FX2LP is used in this work, and the inner structure and features of FX2LP are pres...
Materials fabrication and processing under working conditions
A novel materials processing approach, i.e. materials fabrication and processing under working conditions, was proposed, based on adaptability of biological systems and some laws of materials fabrication and processing,...
CFD simulation of gas holdup and gas-liquid flow in bubble columns
The gas dispersion and flow velocities in bubble columns with single-stage gas distributor, double-stage gas distributor and with flow draft, respectively, are numerically simulated by using computational fluid dynamics...
Research on the connotation and assessment of water security<br /> —— Take Wanzhou district of Three-gorge Reservoir as an illustration<br />
In this paper, connotation of water security is discussed and three dimention concept model is put forward on the basis of content, goal and time. On the precondition of determinate goal and time, water resource securit...
The uniqueness of the decomposition of an algebra with trivial annihilator
In this paper any finite dimensional algebra with trivial annihilator is proven to be decomposed into the direct sum of indecomposable ideals and the decomposition is unique without considering the order of the ideals.