改进的基于LMA算法的电子稳像技术

提出了一种改进的基于LMA算法的电子稳像技术.通过对LMA进行变换和改进将它运用到仿射变换模型的参数估计当中,从而获得参考帧与当前帧之间的全局运动矢量.通过变换降低了Hessian矩阵的计算量,并将多分辨率的匹配技术引入到算法当中,使得该电子稳像技术具有速度快和精度高的特点.实验表明,该技术对于视频的稳像具有良好的效果.

Improved Technology of Electronic Image Stabilization Based on LMA

An improved technology of electronic image stabilization based on Levenberg-Marquardt algorithm(LMA) was presented.A modified LMA was used to estimate parameter in affine transform model,so we can obtain globe motion vector between the reference frame and the current frame.It reduced the Hessian matrix computation load through the transformation,and introduces the multi-resolution match technology in the algorithm.The method has the characteristic of high processing speed and high precision.The experiments show that improved algorithm has a better effect for improving video image stabilization.