基于熵的图像稳定程度描述方法

Descriptive method for image stability based on entropy

提出一种基于图像熵的成像系统稳定程度描述方法,利用表征紊乱度的图像熵评价图像的稳定程度。通过实验,记录了佩肯棱镜系统的稳像过程,用图像熵对此过程量化、描述,得出了变化曲线。曲线的波动与所观察到的图像稳定程度的变化相符,证明了提出的描述方法是合理且有效的。

A descriptive method for imaging system stability based on entropy is proposed. Image entropy which presents the irregularity of an image is used for stability evaluation. A curve is generated by recording the transformation process of Pechan prism system and quantifying entropies of image sequences. The fluctuation of the curve is in accordance with the stability changes of observed images. Conclusion suggests that the proposed method is reasonable and effective.