Multi-line fitting using polynomial phase transforms and downsampling
Multi-line fitting using polynomial phase transforms and downsampling
复制标题
使用多项式相变换和下采样的多线拟合
DOI：
10.1109/icassp.2001.941266
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Azeddine Beghdadi
中科院分区：
文献类型：
--
作者：
K. Abed;Azeddine Beghdadi
针对二维图像的多线拟合问题，提出了一种新的信号处理方法。我们首先在一个特殊的参数估计框架中重新表述前一个问题，从而得到一阶或二阶多项式相位信号结构。然后，可以利用先前在该形式中开发的算法（特别是用于高分辨率频率估计的下采样技术）来产生对线路参数的准确估计。该方法能够估计不同偏移量的平行线参数，并处理Aghajan等（1993）引入的传感器阵列处理技术无法处理的量化噪声效应。仿真结果验证了该方法的有效性。
A new signal processing method is developed for solving the multiline fitting problem in a two dimensional image. We first reformulate the former problem in a special parameter estimation framework such that a first order or a second order polynomial phase signal structure is obtained. Then, the previously developed algorithms in that formalism (and particularly the downsampling technique for high resolution frequency estimation) can be exploited to produce accurate estimates for line parameters. This method is able to estimate the parameters of parallel lines with different offsets and handles the quantization noise effect which can not be done by the sensor array processing technique introduced by Aghajan et al. (1993). Simulation results are presented to demonstrate the usefulness of the proposed method.
影响因子：
22.7
作者：
DUDA, RO;HART, PE
通讯作者：
HART, PE