动态图像序列中鱼体体干运动建模

The Motion Model for Fish's Soma in Dynamic Image Sequences

针对利用鱼游运动机理对水下仿生器进行研究的问题,本文从动态图像处理的角度出发,建立了基于动态图像序列的鱼体体干运动模型。首先,通过边缘检测得到鱼体轮廓,提出基于欧式距离变换的鱼体体干线提取方法,然后,拟合体干包络线和体干若干点的平动方程,获得细长体理论参数,建立鱼体体干运动模型。实验表明,本文建立的运动模型可以真实有效的描述自然状态下鱼类游动的体干曲线形变。

Aiming at the problem of bionic underwater vehicle＇s research using fish swimming locomotion mechanism, from the point of view of image processing, fish＇s soma moving model was established based on dynamic image sequences. First, attain fish＇s contour by edge detecting, and present a method for soma extractiOn based on distance transform. Second, fit soma＇s envelope and translational equation to attain parameter of slender body theory. Finally, establish fish＇s soma moving model. The experimental results show that our model can describe fish swimming curve deformation under natural state more accurately and practically