【摘 要】
：
针对Hough变换过程中参数空间利用率低的问题,提出了一类直线检测方法,该方法极大地提高了参数空间的利用率。首先提出了基于仿射变换的Hough变换的实现方法,然后提出了实现
【机 构】
：
空军工程大学电讯工程学院,西北工业大学航天学院,驻航天二院中心军事代表室,
论文部分内容阅读
针对Hough变换过程中参数空间利用率低的问题,提出了一类直线检测方法,该方法极大地提高了参数空间的利用率。首先提出了基于仿射变换的Hough变换的实现方法,然后提出了实现完全空间Hough变换的充分必要条件并给予证明,从而建立了能够实现完全空间Hough变换的仿射变换形式,最后提出了一种典型的完全Hough变换形式并给出了算法的详细计算过程。对图像进行特定的仿射变换以改变其定义域,对仿射变换后图像进行Hough变换并计算直线参数。仿真结果表明:该方法对参数累加数组的利用率可以达到100%;同时,与其他方法相比,检测精度得到了提高。
Aiming at the problem of low utilization of parameter space in Hough transform, a kind of line detection method is proposed, which greatly improves the utilization of parameter space. Firstly, the method of implementing Hough transform based on affine transformation is proposed. Then, the sufficient and necessary conditions for implementing full-space Hough transform are proposed and proved, and the affine transformation form which can achieve full-space Hough transform is established. Finally, A typical complete Hough transform is given and a detailed calculation of the algorithm is given. A certain affine transformation of the image to change its domain, the affine transformation of the image Hough transform and calculation of linear parameters. Simulation results show that this method can achieve a 100% utilization rate of the parameter accumulation array. Meanwhile, compared with other methods, the detection accuracy is improved.
其他文献
Carbon nanotube fibers can be fabricated by the chemical vapor deposition spinning process.They are promising for a wide range of applications such as the build
This paper is a continuation of the study of the algebraic speed for Markov processes.The authors concentrate on algebraic decay rate for the transient birth-de
Abstract Let X1,X2,...be a sequence of dependent and heavy-tailed random variables with distributions F1,F2,…. on (-∞,∞),and let т be a nonnegative integer-
Flapping plates of typical fishlike tail shapes are simulated to investigate their locomotion performance using the multi-block Lattice Boltzmann Method (LBM) a
The apparent slip between solid wall and liquid is studied by using the Lattice Boltzmann Method (LBM) and the Shan-Chen multiphase model in this paper.With a n
A real-size experiment on 11 tubes was done to study the performance of centrifugal concrete-filled steel tubes under bending and torsion. This paper first intr
利用扫描隧道显微镜（ＳＴＭ）对 ＱＡｌ－９－２合金在３．５％ ＮａＣｌ溶液中脱合金腐蚀的早期过程进行了原位观察结合ＳＥＭ，ＥＤＸ分析表明，ＱＡｌ－９－２合金的脱合金腐蚀首先发生在α基体和亚稳β相的界面，并在亚稳β相内继续扩展．α相不发生
旋转 ＣＶＩ是在 ＣＶＩ原理基础上发展的一种制备 Ｃ／ＳｉＣ复合材料的新工艺，通过石墨衬底的旋转，使预制体的制备与基体的沉积同步进行，能有效消除一般ＣＶＩ工艺过程中存在的“瓶颈”效应．在自制的旋转 ＣＶＩ设
多直流馈入电网已经提出了几种改进的短路比指标,但对其有效性一直缺少全面和定量的评估.文中以含有5回直流的南方交直流并联电网为蓝本构造了多组仿真测试模型,对评估多馈入
在用于电力系统关键特征值计算的精化Cayley-Arnoldi算法中,采用精化Ritz对替代原来的Ritz对,从而形成改进型算法.由于精化Ritz向量包含更多的子空间信息,精化Ritz值更接近其