一种新的基于随机Hough变换的椭圆检测方法
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TP391.41

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国防预研基金,96.J2.4.2,


A NEW ELLIPSE DETECTION METHOD USING RANDOMIZED HOUGH TRANSFORM
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    摘要:

    提出一种新的基于RHT的三点椭圆检测法,利用随机采样到的2点(包括它们的边缘方向)和搜索获得的1个点来确定椭圆参数。这种方法不仅在确定以数时只需随机采样两点,还通过搜索到的点来决定是否对当前点进行参数计算和累积,有效地解决了无效有样和累积问题。与其他检测方法比较结果表明:新方法具有计算速度快,占有内存小及检测性能好等优点。

    Abstract:

    Applying Randomized Hough Transform (RHT) directly to the detection of ellipses, five points were randomly sampled to determine the ellipse parameters, which produces a large amount of useless accumulations when processing complex images. To solve the problem, a new ellipse detection method using RHT was proposed, which uses two randomly picked points (with edge directions) and one searched point to calculate the ellipse parameters. In this method, only two points are randomly picked when calculating the ellipse parameters, furthermore, the searched point can be used to determine whether the parameters should be accumulated or not, therefore, the problem of useless sampling and accumulations is well solved. In comparison with other detection methods, this method has the advantages of high speed, small storage and high detection performance.

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陈燕新 戚飞虎.一种新的基于随机Hough变换的椭圆检测方法[J].红外与毫米波学报,2000,19(1):43~47]. CHEN Yan-Xin, QI Fei-Hu. A NEW ELLIPSE DETECTION METHOD USING RANDOMIZED HOUGH TRANSFORM[J]. J. Infrared Millim. Waves,2000,19(1):43~47.]

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  • 最后修改日期:1998-09-07
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